A laser welding positioning and pressing fixture

Abstract

This utility model relates to the field of laser welding technology and proposes a laser welding positioning and pressing fixture, including an outer frame. A main rotating shaft for loading, unloading, and turning is rotatably connected to the inner side of the outer frame. A clamping frame is fixedly installed on the outer side of the main rotating shaft. A clamping assembly for clamping parts is provided on the inner side wall of the clamping frame. A driving assembly for driving the main rotating shaft to reciprocate is provided inside the outer frame. Limiting gears for driving the main rotating shaft are fixedly installed at both ends of the main rotating shaft. This laser welding positioning and pressing fixture, through the main rotating shaft, drives the clamping frame to rotate on the outer frame, and through the driving assembly, enables it to perform forward, middle, and backward reciprocating turning operations. This facilitates the clamping of unprocessed parts by the clamping assembly on the clamping frame, and the unloading of welded parts after welding, thereby solving the problem of needing manual or other equipment for loading and unloading operations during the welding process.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, and in particular to a laser welding positioning and pressing fixture. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology, and the positioning and pressing fixture is a device used to clamp and fix parts.

[0003] A Chinese patent discloses a welding fixture for aluminum alloy die-castings that is easy to position, with the publication number CN218363127U. The patent states that "it includes a fixed plate, a first motor is fixedly connected to the top of the fixed plate, an output shaft of the first motor is fixedly connected to a shaft through a coupling, a rotating plate is fixedly connected to the top of the shaft, a sliding wheel is fixedly connected to the bottom of the rotating plate, a fixed ring is fixedly connected to the top of the fixed plate, a slide groove is provided on the front of the fixed ring, and a fixing piece is fixedly connected to one side of the rotating plate"; the welding fixture is welded by placing the parts into the fixed ring, resulting in the need for manual loading and unloading operations for the overall welding, and the loading and unloading operations cannot be performed more conveniently, thereby reducing the work efficiency of part welding. Utility Model Content

[0004] The purpose of the utility model is to provide a laser welding positioning and pressing fixture, which solves the problem in the related technology that the overall welding loading and unloading process needs to be manually operated during use, and the loading and unloading operations cannot be performed more conveniently, thereby reducing the work efficiency of parts welding.

[0005] The technical solution of the utility model is as follows:

[0006] A laser welding positioning and pressing fixture comprises an outer frame, the inner side of the outer frame is rotatably connected to a main rotating shaft for loading and unloading and steering, the outer side of the main rotating shaft is fixedly installed with a clamping frame, the inner side wall of the clamping frame is provided with a clamping assembly for clamping parts, the interior of the outer frame is provided with a driving assembly for driving the main rotating shaft to reciprocate and turn, both ends of the main rotating shaft are fixedly installed with limit gears for the driving assembly to drive the main rotating shaft, the top of the outer frame is fixedly installed with a welding seat for parts welding, and the interior of the welding seat is provided with a steering assembly for steering.

[0007] Preferably, the driving assembly includes a driven shaft rotatably connected at both ends of the top of the outer frame, a driving rod is fixedly installed on one end of the driven shaft, a limiting cover is fixedly installed on both sides of the outer frame, the inner side wall of the limiting cover is slidably connected to a displacement gear rack, the top inner wall of the displacement gear rack is slidably connected to the other end of the driving rod, and the bottom end of the displacement gear rack is meshed with the limiting gear.

[0008] Preferably, the driving assembly further comprises a driving shaft rotatably connected to the inner wall of the bottom end of the outer frame, and linkage wheels are fixedly mounted on both ends of the driving shaft and the other end of the driven shaft, and a belt is sleeved on the outer side of the linkage wheel.

[0009] Preferably, the clamping assembly comprises a lifting frame slidably connected to the inner side wall of the clamping frame, a first electric hydraulic rod is fixedly mounted on the bottom end of the lifting frame, and a fixed end of the first electric hydraulic rod is fixedly connected to the inner side wall of the clamping frame.

[0010] Preferably, the clamping assembly further comprises two second electric hydraulic rods fixedly mounted on the other side of the lifting frame, and clamping rings are fixedly mounted on the telescopic ends of the two second electric hydraulic rods.

[0011] Preferably, the steering assembly comprises a steering seat fixedly mounted on the top of the welding seat, and a steering gear is fixedly mounted on the bottom end of the steering seat.

[0012] Preferably, the steering assembly also includes a steering rack slidably connected to the inner walls on both sides of the welding seat, the steering rack is meshed with the steering gear, an electric telescopic rod is fixedly installed on one end of the steering rack, and the fixed end of the electric telescopic rod is fixedly connected to the inner wall of the welding seat.

[0013] Preferably, a driving motor is fixedly mounted on the outer side of the bottom end of the outer frame, and an output end of the driving motor is fixedly connected to one end of the driving shaft.

[0014] Beneficial effects of the utility model:

[0015] The main rotating shaft is arranged to drive the rotation of the clamping frame on the outer frame, and the driving component enables it to perform reciprocating turning operations in the front, middle and back directions, thereby making it easier to clamp the unprocessed parts through the clamping components on the clamping frame, and to unload the welded parts after welding, thereby solving the problem of loading and unloading operations that need to be performed manually or by other equipment during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outer frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the clamping frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the steering assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the welding seat of the utility model;

[0022] In the figure: 1. outer frame; 2. main rotating shaft; 3. clamping frame; 4. clamping assembly; 41. lifting frame; 42. first electric hydraulic rod; 43. second electric hydraulic rod; 44. clamping ring; 5. driving assembly; 51. driven shaft; 52. driving rod; 53. limiting cover; 54. displacement gear frame; 55. driving shaft; 56. linkage wheel; 57. belt; 6. limiting gear; 7. welding seat; 8. steering assembly; 81. steering seat; 82. steering gear; 83. steering rack; 84. electric telescopic rod; 9. driving motor. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 and Figure 2The present embodiment proposes a laser welding positioning and pressing fixture, comprising an outer frame 1, the inner side of the outer frame 1 is rotatably connected with a main rotating shaft 2 for loading and unloading and steering, the outer side of the main rotating shaft 2 is fixedly installed with a clamping frame 3, the inner side wall of the clamping frame 3 is provided with a clamping component 4 for clamping parts, the inner side wall of the clamping frame 3 is provided with a driving component 5 for driving the main rotating shaft 2 to reciprocate and turn, both ends of the main rotating shaft 2 are fixedly installed with a limit gear 6 for the driving component 5 to drive the main rotating shaft 2, the top of the outer frame 1 is fixedly installed with a welding seat 7 for part welding, the inside of the welding seat 7 is provided with a steering component 8 for steering, the driving component 5 is connected with the upper limit gear 6 of the main rotating shaft 2, so that the driving component 5 can drive the main rotating shaft 2 to move in the outer The frame 1 rotates, so that the main rotating shaft 2 can drive the clamping frame 3 to reciprocate in the front, middle and rear directions, so that when the clamping frame 3 turns to the front, the welding parts can be clamped by the clamping assembly 4 thereon, so that when the clamping frame 3 drives the parts to rotate above the welding seat 7, the welded parts can be loaded, and the parts on the welding seat 7 can be turned by the steering assembly 8 according to the required welding angle. After the welding is completed, the clamping frame 3 can clamp the welded parts again through the clamping assembly 4, and drive the parts to unload to the rear, and at this time the main rotating shaft 2 can continue to drive the clamping frame 3 to rotate in the direction, and continue to clamp the unwelded parts, thereby effectively improving the loading and unloading operations of the parts during the welding process;

[0025] See also Figure 2 , Figure 3 , Figure 4 as well as Figure 5The present embodiment proposes a laser welding positioning and pressing fixture, wherein the driving assembly 5 comprises a driven shaft 51 rotatably connected at both ends of the top of the outer frame 1, a driving rod 52 is fixedly installed at one end of the driven shaft 51, and a limiting cover 53 is fixedly installed on both sides of the outer frame 1, and a displacement gear rack 54 is slidably connected to the inner wall of the limiting cover 53, and the top inner wall of the displacement gear rack 54 is slidably connected to the other end of the driving rod 52, and the bottom end of the displacement gear rack 54 is meshed with the limiting gear 6, and the driving assembly 5 also comprises a driving shaft 55 rotatably connected to the inner wall of the bottom end of the outer frame 1, and linkage wheels 56 are fixedly installed at both ends of the driving shaft 55 and the other end of the driven shaft 51, and a belt 57 is sleeved on the outer side of the linkage wheel 56, and a driving motor 9 is fixedly installed on the outer side of the bottom end of the outer frame 1, and the output of the driving motor 9 The output end is fixedly connected to one end of the driving shaft 55, and the driving motor 9 drives the driving shaft 55 to rotate on the outer frame 1, so that the two driven shafts 51 on the outer frame 1 can be driven to rotate synchronously through the linkage wheel 56 and the belt 57, and then the driving rod 52 can be made to rotate in a circle inside the limiting cover 53 through the driven shaft 51. At this time, according to the sliding of the driving rod 52 on the inner wall of the displacement gear rack 54, the displacement gear rack 54 can be displaced by the other end of the driving rod 52, driving the displacement gear rack 54 to reciprocate vertically inside the limiting cover 53, and the bottom end of the displacement gear rack 54 can mesh with the limiting gear 6, so that the main rotating shaft 2 can drive the clamping frame 3 to reciprocate and turn in a semicircular trajectory on the inner side of the outer frame 1, so as to facilitate the loading and unloading operations, and the clamping assembly The component 4 includes a lifting frame 41 slidably connected to the inner wall of the clamping frame 3, a first electric hydraulic rod 42 is fixedly installed at the bottom end of the lifting frame 41, and the fixed end of the first electric hydraulic rod 42 is fixedly connected to the inner wall of the clamping frame 3. The clamping assembly 4 also includes two second electric hydraulic rods 43 fixedly installed on the other side of the lifting frame 41, and the telescopic ends of the two second electric hydraulic rods 43 are fixedly installed with clamping rings 44. When the clamping frame 3 moves to the position of the part to be welded, the lifting frame 41 can be driven to slide on the inner side of the clamping frame 3 by the first electric hydraulic rod 42, and then the clamping ring 44 is driven to approach the welding part by the second electric hydraulic rod 43, so that the clamping ring 44 can be moved to the corresponding position of the welding part to clamp the welding part. A steering seat 81 is fixedly installed on the top of the receiving seat 7, and a steering gear 82 is fixedly installed on the bottom end of the steering seat 81. The steering assembly 8 also includes a steering rack 83 that is slidably connected to the inner walls on both sides of the welding seat 7. The steering rack 83 is meshed with the steering gear 82. An electric telescopic rod 84 is fixedly installed on one end of the steering rack 83. The fixed end of the electric telescopic rod 84 is fixedly connected to the inner wall of the welding seat 7. After the parts are placed on the steering seat 81 on the welding seat 7, the electric telescopic rod 84 can be extended and retracted inside the welding seat 7, so that the steering rack 83 can slide inside the welding seat 7, so that the steering gear 82 is driven by the steering rack 83, so that the driving gear drives the parts on the steering seat 81 to be turned to a suitable direction on the welding seat 7.

[0026] In this embodiment, when in use, first, the driving motor 9 drives the driving shaft 55 to rotate inside the outer frame 1 and drives the driven shaft 51, so that the driven shaft 51 can drive the displacement gear rack 54 to reciprocate and slide through the action of the driving rod 52 inside the limit cover 53, so that the main rotating shaft 2 can be driven to reciprocate on the outer frame 1 in a semicircular trajectory through the action of the displacement gear rack 54 on the limit gear 6, so that the main rotating shaft 2 can drive the clamping frame 3 to rotate on the outer frame 1. When the clamping frame 3 moves to the position where the parts are not welded, the parts can be clamped through the clamping ring 44, and then the parts are driven to move to the welding seat 7 for laser welding of the parts. At the same time, the steering seat 81 can be driven on the welding seat 7 by the steering gear 82 to adjust the direction of the parts according to the required direction. After welding is completed, the parts can continue to be unloaded by rotating the clamping frame 3 backward. At this time, the main rotating shaft 2 can continue to perform the reverse steering operation, so that the required loading operation can be performed, thereby solving the problem of loading and unloading operations that need to be performed manually or by other equipment during welding.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding positioning and pressing fixture, comprising an outer frame (1), characterized in that: The inner side of the outer frame (1) is rotatably connected to a main rotating shaft (2) for loading and unloading materials and steering, a clamping frame (3) is fixedly installed on the outer side of the main rotating shaft (2), and a clamping assembly (4) for clamping parts is arranged on the inner side wall of the clamping frame (3), and a driving assembly (5) for driving the main rotating shaft (2) to reciprocate and steer is arranged inside the outer frame (1), and limit gears (6) for the driving assembly (5) to drive the main rotating shaft (2) are fixedly installed at both ends of the main rotating shaft (2), and a welding seat (7) for welding parts is fixedly installed on the top of the outer frame (1), and a steering assembly (8) for steering is arranged inside the welding seat (7).

2. The laser welding positioning and pressing fixture according to claim 1, characterized in that: The driving assembly (5) comprises a driven shaft (51) rotatably connected at both ends of the top of the outer frame (1); a driving rod (52) is fixedly mounted on one end of the driven shaft (51); a limiting cover (53) is fixedly mounted on both sides of the outer frame (1); a displacement gear rack (54) is slidably connected to the inner side wall of the limiting cover (53); the top inner wall of the displacement gear rack (54) is slidably connected to the other end of the driving rod (52); and the bottom end of the displacement gear rack (54) is meshed with a limiting gear (6).

3. The laser welding positioning and pressing fixture according to claim 2, characterized in that: The driving assembly (5) further comprises a driving shaft (55) rotatably connected to the inner wall of the bottom end of the outer frame (1), and linkage wheels (56) are fixedly mounted on both ends of the driving shaft (55) and the other end of the driven shaft (51), and a belt (57) is sleeved on the outer side of the linkage wheel (56).

4. The laser welding positioning and pressing fixture according to claim 1, characterized in that: The clamping assembly (4) comprises a lifting frame (41) slidably connected to the inner side wall of the clamping frame (3), a first electric hydraulic rod (42) being fixedly mounted at the bottom end of the lifting frame (41), and a fixed end of the first electric hydraulic rod (42) being fixedly connected to the inner side wall of the clamping frame (3).

5. The laser welding positioning and pressing fixture according to claim 4, characterized in that: The gripping assembly (4) further comprises two second electric hydraulic rods (43) fixedly mounted on the other side of the lifting frame (41), and gripping rings (44) are fixedly mounted on the telescopic ends of the two second electric hydraulic rods (43).

6. The laser welding positioning and pressing fixture according to claim 1, characterized in that: The steering assembly (8) comprises a steering seat (81) fixedly mounted on the top of the welding seat (7), and a steering gear (82) fixedly mounted on the bottom end of the steering seat (81).

7. The laser welding positioning and pressing fixture according to claim 6, characterized in that: The steering assembly (8) further comprises a steering rack (83) slidably connected to the inner walls on both sides of the welding seat (7), the steering rack (83) meshing with the steering gear (82), an electric telescopic rod (84) fixedly mounted on one end of the steering rack (83), and a fixed end of the electric telescopic rod (84) fixedly connected to the inner wall of the welding seat (7).

8. The laser welding positioning and pressing fixture according to claim 3, characterized in that: A drive motor (9) is fixedly mounted on the outer side of the bottom end of the outer frame (1), and an output end of the drive motor (9) is fixedly connected to one end of a drive shaft (55).

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