Universal angle adjusting clamp suitable for adjusting laser welding angle and using method of universal angle adjusting clamp

Abstract

The invention discloses a universal angle adjusting clamp suitable for adjusting a laser welding angle and a using method of the universal angle adjusting clamp, and belongs to the technical field of aviation welding. The fixing platform is used for adjusting and installing the laser welding clamp according to needs, and the two ends of the fixing platform are installed on the rotating devices. The rotating device is mainly used for supporting and adjusting the angle of the laser cutting clamp; the supporting device is inserted into bottom pipes on the two sides of the rotating device to adjust the telescopic size and is mainly used for providing additional supporting force according to needs. The angle of the laser welding clamp can be rapidly adjusted, so that the adaptability of equipment can be improved, welding of parts with special structural forms such as 90-degree sharp turning characteristics on gas protection laser welding equipment of an additional device is achieved, and the problem that equipment machining is limited is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation welding, and relates to a general-purpose angle adjustment fixture suitable for adjusting the laser welding angle and its use method. It is mainly used to adjust the angle of the laser welding fixture when the moving ability of the laser welding equipment is limited, so as to adapt to the processing capacity of the equipment. Background Art

[0002] Laser welding has the advantages of high precision, high speed, large penetration ratio and small welding deformation, and is increasingly widely used in the welding of aviation structural parts. At present, according to the classification of the shielding gas device, laser welding equipment is mainly divided into two categories: coaxial gas protection and additional device gas protection. Among them, additional device gas protection usually fixes a ventilation copper pipe device beside the laser welding torch for gas protection. When in use, it is necessary to ensure that the fixed copper pipe always moves along the weld bead with the laser welding torch, and there may be a situation where the angle of the laser welding fixture needs to be adjusted, as shown in Figure 1 and Figure 2 , the main body of the laser welding fixture is mostly a frame structure, and D in the figure refers to the weld bead position. Designing a general-purpose angle adjustment fixture suitable for adjusting the laser welding angle is of great significance for solving the problem of inability to perform laser welding caused by the limitation of the moving ability of the additional device gas protection laser welding equipment. Summary of the Invention

[0003] The present invention provides a general-purpose angle adjustment fixture suitable for adjusting the laser welding angle and its use method. It is mainly used to adjust the angle of the laser welding fixture when the moving ability of the laser welding equipment is limited, so as to adapt to the processing capacity of the equipment.

[0004] The present invention adopts the following technical solutions:

[0005] A general-purpose angle adjustment fixture suitable for adjusting the laser welding angle, the general-purpose angle adjustment fixture includes a fixed platform 1, a rotating device 2 and a supporting device 3. The fixed platform 1 is a rectangular frame structure, and the laser welding fixture is installed by means of clamping and fixing; the main body of the rotating device 2 is a rectangular frame base, and a square box reducer 2-1 and a bearing seat 2-2 are respectively installed at both ends. The two ends of the fixed platform 1 are installed on the square box reducer 2-1 and the bearing seat 2-2. The square box reducer 2-1 provides a rotating force, and the bearing seat 2-2 has a stopping function for fixing the laser welding fixture at the required angle; the supporting device 3 is inserted into the bottom pipes on both sides of the rotating device 2, and by adjusting the telescopic dimension, additional supporting force is provided as required.

[0006] The described rotating device 2 includes a square box reducer 2-1, a bearing seat 2-2, a second support frame 2-3, casters 2-4, and a first support leg 2-5. The second support frame 2-3 is a rectangular frame base, with both ends along its length being hollow square tubes. Through holes penetrating up and down are made at both ends of the two hollow square tubes. Four casters 2-4 and first support legs 2-5 are installed at the four corners of the bottom of the second support frame 2-3. The casters 2-4 are used to move the entire general-purpose angle adjustment fixture, and the first support leg 2-5 can adjust its height. Adjust the first support leg 2-5 until it touches the ground to provide ground support force for the general-purpose angle adjustment fixture. The square box reducer 2-1 and the bearing seat 2-2 are arranged opposite to each other and are respectively fixed in the middle of the two ends of the upper surface of the second support frame 2-3. The square box reducer 2-1 is used to provide rotational force, and the bearing seat 2-2 is an indexing stop bearing seat used to fix the angle after rotation. Their rotation axes are opposite and coaxially arranged, and connecting plates are provided on the rotation axes of both, and the connecting plates rotate synchronously with the rotation axes.

[0007] The described support device 3 includes telescopic struts 3-1, fixing bolts 3-2, and second support legs 3-3. There are four square tubes of the telescopic struts 3-1 in total, with the same structure, arranged at the four corners of the second support frame 2-3. One end of each of the four telescopic struts 3-1 is respectively inserted into the two hollow square tubes of the second support frame 2-3 and can adjust the extended length. The other ends are all installed with second support legs 3-3, and the second support legs 3-3 can also adjust their heights. The length of the support arms is adjusted by the telescopic adjustment of the telescopic struts 3-1, and different auxiliary support forces are provided for the general-purpose angle adjustment fixture through the second support legs 3-3. Thus, when laser welding fixtures of different sizes are installed on the general-purpose angle adjustment fixture, it can adapt to the size of the laser welding fixture, provide different support points, and ensure the overall stability. Strip-shaped grooves are made on the upper and lower surfaces of the four telescopic struts 3-1, which cooperate with the through holes at the ends of the hollow square tubes at both ends of the second support frame 2-3. The telescopic struts 3-1 are fastened at the required length through the fixing bolts 3-2.

[0008] The described fixed platform 1 includes a first support frame 1-1, a fixture baffle 1-2, and a baffle adjustment belt 1-3. The first support frame 1-1 is of a rectangular frame structure, and brackets are provided at both ends of its upper surface, which are fixedly connected to the connecting plates on the square box reducer 2-1 and the bearing seat 2-2 respectively. The first support frame 1-1 is controlled by the square box reducer 2-1 to achieve angle adjustment; the baffle adjustment belt 1-3 is a long strip plate, and multiple of them are provided, arranged at intervals along the length direction of the first support frame 1-1 and fixed. The baffle adjustment belt 1-3 is provided with bolt holes arranged closely; the fixture baffle 1-2 is a vertical baffle, and several of them are provided, in pairs. The two fixture baffles 1-2 in each group are detachably installed on the same baffle adjustment belt 1-3. The laser welding fixture is clamped and fixed on the fixed platform 1 through the clamping force between the fixture baffles 1-2, so that the laser welding fixture can achieve angle adjustment along with the fixed platform 1. By installing the fixture baffle 1-2 at different bolt hole positions, the adjustment of the fastening position is realized, so as to be applicable to laser cutting fixtures of different sizes.

[0009] A usage method of the above-mentioned general-purpose angle adjustment fixture applicable to adjusting the laser welding angle, the usage method includes the following steps:

[0010] Step 1, place the bottom plane of the laser welding fixture on the fixed platform 1 of the general-purpose angle adjustment fixture. Determine the installation position of the fixture baffle 1-2 according to the main frame structure of the laser welding fixture, make the fixture baffle 1-2 close to the laser welding fixture, and fix it on the baffle adjustment belt 1-3 with bolts, then the laser welding fixture can be fixed on the angle adjustment fixture.

[0011] Step 2, stretch the support device 3 to a suitable position, rotate the first foot 2-5 and the second foot 3-3 until they contact the ground, and support the general-purpose angle adjustment fixture and the laser welding fixture.

[0012] Step 3, operate and rotate the square box reducer 2-1 to adjust the angle of the laser welding fixture to a suitable position, and use the bearing seat 2-2 to fix the angle, finally realizing the adjustment of the angle of the laser welding fixture.

[0013] The beneficial effects of the present invention:

[0014] 1. The present invention can achieve quick adjustment of the angle of the laser welding fixture, thereby improving the adaptability of the equipment and realizing the welding of parts with special structural forms such as 90° sharp turn features on the additional device gas protection laser welding equipment, avoiding the problem of equipment processing limitation.

[0015] 2. By using the fixed platform in combination with the support device, the present invention can achieve angle adjustment for laser welding jigs of different sizes, avoiding the situation of equipping multiple sets of adjustment jigs for different laser welding jigs, thus saving a large amount of tooling manufacturing costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the weld bead position before angle adjustment. In the figure, D represents the weld bead position.

[0017] Figure 2 It is a schematic diagram of the weld bead position after angle adjustment.

[0018] Figure 3 It is a schematic diagram of a general-purpose angle adjustment jig.

[0019] Figure 4 It is an exploded schematic diagram of a general-purpose angle adjustment jig. Among them, (a) is a schematic diagram of the fixed platform, (b) is a schematic diagram of the rotating device, and (c) is a schematic diagram of the support device.

[0020] Figure 5 It is a schematic diagram of the fixed platform.

[0021] Figure 6 It is a schematic diagram of the rotating device.

[0022] Figure 7 It is a schematic diagram of the support device.

[0023] Figure 8 It is a schematic diagram of the use.

[0024] Figure 9 It is a schematic diagram of the baffle fixation.

[0025] Figure 10 It is a schematic diagram of the bearing seat.

[0026] Among them, 1 is the fixed platform; 2 is the rotating device; 3 is the support device; 1-1 is the first support frame; 1-2 is the jig baffle; 1-3 is the baffle adjustment belt; 2-1 is the square box reducer; 2-2 is the bearing seat; 2-3 is the second support frame; 2-4 is the first caster; 2-5 is the support leg; 3-1 is the telescopic strut; 3-2 is the fixing bolt; 3-3 is the second support leg. DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following will describe the specific embodiments of the present invention in detail according to the technical solutions.

[0028] Taking a certain type of mouth frame laser welding assembly as an example, the following will elaborate on the usage process of the present invention in detail. Specifically, see Figures 8 - 10 .

[0029] A general-purpose angle adjustment fixture suitable for adjusting the laser welding angle. The general-purpose angle adjustment fixture includes a fixed platform 1, a rotating device 2, and a supporting device 3, as Figure 3 and Figure 4 .

[0030] As Figure 6 , the rotating device 2 includes a square box reducer 2-1, a bearing seat 2-2, a second support frame 2-3, casters 2-4, and a first support leg 2-5. The second support frame 2-3 is a rectangular frame base, and its two ends along the length direction are hollow square tubes. Through holes penetrating up and down are made at both ends of the two hollow square tubes. Four casters 2-4 and first support legs 2-5 are installed at the four corners of the bottom of the second support frame 2-3. The casters 2-4 are used to move the entire general-purpose angle adjustment fixture, and the first support leg 2-5 can adjust its height. Adjust the first support leg 2-5 to touch the ground to provide ground support force for the general-purpose angle adjustment fixture; the square box reducer 2-1 and the bearing seat 2-2 are arranged oppositely and are respectively fixed in the middle of the two ends of the upper surface of the second support frame 2-3. The square box reducer 2-1 is used to provide rotational force, and the bearing seat 2-2 is used to fix the angle after rotation. Their rotating shafts are opposite and coaxially arranged, and connecting plates are provided on the rotating shafts of both of them. The connecting plates rotate synchronously with the rotating shafts. The bearing seat 2-2 is a indexing detent bearing seat, and a fixed pin and a disk coaxial with its rotating shaft are provided on its main body structure. A number of jacks are evenly distributed along the circumference of the disk and cooperate with the fixed pin to be fixed at the required rotation angle, as Figure 10 .

[0031] As Figure 7 , the supporting device 3 includes telescopic struts 3-1, fixing bolts 3-2, and second support legs 3-3. There are four square tubes of the telescopic struts 3-1 in total, with the same structure, and they are arranged at the four corners of the second support frame 2-3. One end of each of the four telescopic struts 3-1 is inserted into the two hollow square tubes of the second support frame 2-3 and can adjust the extended length. The other ends are all installed with second support legs 3-3, and the second support legs 3-3 can also adjust their heights. The length of the support arms is adjusted by the telescopic struts 3-1, and different auxiliary support forces are provided for the general-purpose angle adjustment fixture through the second support legs 3-3. Thus, when laser welding fixtures of different sizes are installed on the general-purpose angle adjustment fixture, it can adapt to the size of the laser welding fixture, provide different support points, and ensure the overall stability; strip-shaped grooves are made on the upper and lower surfaces of the four telescopic struts 3-1 and cooperate with the through holes at the ends of the hollow square tubes at both ends of the second support frame 2-3. The telescopic struts 3-1 are fastened at the required length through the fixing bolts 3-2.

[0032] As Figure 5, the fixed platform 1 includes a first support frame 1-1, a fixture baffle 1-2, and a baffle adjustment belt 1-3. The first support frame 1-1 is a rectangular frame structure, and brackets are provided at both ends of its upper surface, which are fixedly connected to the connecting plates on the square box reducer 2-1 and the bearing seat 2-2 respectively. The first support frame 1-1 is controlled by the square box reducer 2-1 to achieve angle adjustment; the baffle adjustment belt 1-3 is a long strip plate, and multiple of them are provided, arranged at intervals along the length direction of the first support frame 1-1 and fixed on the first support frame 1-1. The baffle adjustment belt 1-3 is provided with bolt holes arranged closely; the fixture baffle 1-2 is a vertical baffle, and several of them are provided, in pairs. Two fixture baffles 1-2 in each group are detachably fixedly installed on the same baffle adjustment belt 1-3 through bolts. The laser welding fixture is clamped and fixed on the fixed platform 1 by the clamping force between the fixture baffles 1-2, so that the laser welding fixture can achieve angle adjustment along with the fixed platform 1. By installing the fixture baffle 1-2 at different bolt hole positions, the adjustment of the fastening position can be realized, so as to be applicable to laser cutting fixtures of different sizes.

[0033] A usage method of the above-mentioned general-purpose angle adjustment fixture applicable to adjusting the laser welding angle, the usage method includes the following steps:

[0034] Step 1, place the bottom plane of the laser welding fixture on the fixed platform 1 of the general-purpose angle adjustment fixture, determine the installation position of the fixture baffle 1-2 according to the main frame structure of the laser welding fixture, so that the fixture baffle 1-2 is close to the laser welding fixture (such as Figure 9 ), and fix it on the baffle adjustment belt 1-3 with bolts, then the laser welding fixture can be fixed on the angle adjustment fixture, such as Figure 8 .

[0035] Step 2, stretch the support device 3 to a suitable position, rotate the first foot 2-5 and the second foot 3-3 until they contact the ground, and support the general-purpose angle adjustment fixture and the laser welding fixture.

[0036] Step 3, operate and rotate the square box reducer 2-1 to adjust the angle of the laser welding fixture to a suitable position, and use the bearing seat 2-2 to fix the angle, finally realizing the adjustment of the angle of the laser welding fixture.

[0037] In summary, the above is only a preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A universal angle adjustment fixture suitable for adjusting the laser welding angle, characterized in that: The universal angle adjustment fixture comprises a fixed platform (1), a rotating device (2) and a supporting device (3); the fixed platform (1) is a rectangular frame structure, and the laser welding fixture is installed by clamping and fixing; the rotating device (2) is a rectangular frame base, and a square box reducer (2-1) and a bearing seat (2-2) are installed at both ends respectively; the two ends of the fixed platform (1) are installed on the square box reducer (2-1) and the bearing seat (2-2); the square box reducer (2-1) provides a rotational force, and the bearing seat (2-2) has a stopping function, which is used to fix the laser welding fixture at a desired angle.

2. A universal angle adjustment fixture suitable for adjusting the laser welding angle according to claim 1, characterized in that: The rotating device (2) comprises a square box reducer (2-1), a bearing seat (2-2), and a second supporting frame (2-3); the second supporting frame (2-3) is a rectangular frame base, the square box reducer (2-1) and the bearing seat (2-2) are arranged relative to each other and are respectively fixed at the middle of both ends of the upper surface of the second supporting frame (2-3); the square box reducer (2-1) is used to provide a rotating force, and the bearing seat (2-2) is a graduated stop bearing seat used to fix the angle after rotation, and the rotation axes of the two are arranged relative to each other and coaxially.

3. A universal angle adjustment fixture suitable for adjusting the laser welding angle according to claim 2, characterized in that: Casters (2-4) and a first support leg (2-5) are installed at the four corners of the bottom of the second support frame (2-3); the casters (2-4) are used to move the entire universal angle adjustment fixture; the first support leg (2-5) can be adjusted in height; the first support leg (2-5) is adjusted to contact the ground, thereby providing ground support force for the universal angle adjustment fixture.

4. A universal angle adjustment fixture for adjusting the laser welding angle according to claim 1, characterized in that: The fixed platform (1) comprises a first supporting frame (1-1), a clamp baffle (1-2), and a baffle adjustment belt (1-3); the main body of the fixed platform (1) is the first supporting frame (1-1), and the baffle adjustment belt (1-3) is a long strip of plates, of which a plurality are provided, arranged and fixed at intervals along the length direction of the first supporting frame (1-1); the clamp baffle (1-2) is a vertical baffle, of which a plurality are provided, arranged in groups of two, and the two clamp baffles (1-2) in each group are detachably mounted on the same baffle adjustment belt (1-3), and the mounting position of the clamp baffle (1-2) on the baffle adjustment belt (1-3) is adjustable, and the laser welding clamp is clamped and fixed on the fixed platform (1) by the clamping force between the clamp baffles (1-2).

5. A universal angle adjustment fixture for adjusting the laser welding angle according to claim 4, characterized in that: The baffle adjustment belt (1-3) is provided with closely arranged bolt holes, and by installing the fixture baffle (1-2) at different bolt hole positions, it is suitable for laser cutting fixtures of different sizes.

6. A universal angle adjustment fixture for adjusting the laser welding angle according to claim 1, characterized in that: The universal angle adjustment fixture further comprises a supporting device (3), wherein the supporting devices (3) are provided with four identical structures, each comprising a telescopic support (3-1), wherein the four telescopic supports (3-1) are installed at the four corners of the rotating device (2), extend in the width direction of the rotating device (2) and can adjust the extension length to provide different auxiliary supporting forces.

7. A universal angle adjustment fixture suitable for adjusting the laser welding angle according to claim 2 or 6, characterized in that: The two ends of the second support frame (2-3) in the rotating device (2) along the length direction are hollow square tubes, and both ends of the two hollow square tubes are formed with through holes that penetrate up and down. The two ends of the two hollow square tubes are respectively inserted into the second support frame (2-3). The upper and lower surfaces of the four telescopic pillars (3-1) are formed with strip grooves that cooperate with the through holes at both ends of the second support frame (2-3). The telescopic pillars (3-1) are fastened to a required length by fixing bolts (3-2).

8. A method for using a universal angle adjustment fixture for adjusting the laser welding angle according to any one of claims 1 to 7, characterized in that: The method comprises placing the bottom plane of the laser welding fixture on a fixed platform (1) and clamping it; operating a rotating square box reducer (2-1) to adjust the angle of the laser welding fixture to a suitable position, and using a bearing seat (2-2) to fix the angle.

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