Laser welding positioning device

Abstract

The utility model discloses a laser welding positioning device which comprises a truss, a supporting plate, a cover plate and a power assembly, a top plate and a bottom plate are vertically distributed on the truss at intervals, the supporting plate is movably connected with the bottom plate, a sinking groove is formed in the supporting plate and used for containing a lower workpiece, a limiting assembly is arranged in the sinking groove, and the cover plate is movably connected with the top plate. The cover plate is provided with at least one telescopic source, movable rods of the telescopic sources vertically extend downwards and are connected with a ring plate, the ring plate is in threaded connection with a plurality of abutting rods, the abutting rods can make an upper workpiece abut against the middle of the ring plate, the power assembly is arranged on the bottom plate and connected with the supporting plate, and the telescopic sources can drive the ring plate to move downwards. The upper workpiece is driven to be pressed on the lower workpiece to form a welding position, and the power assembly can drive the supporting plate to rotate to adjust the welding position; welding can be completed at a time, the welding quality is high, and the situation that welding cracks occur when the position of a welded part is adjusted is avoided.

Description

Technical Field

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

[0002] Laser welding is a material processing method that mainly uses high-energy laser pulses to locally heat a small area on the surface of the material. The energy of the laser radiation then diffuses into the interior of the workpiece through heat conduction. After the workpiece melts, a specific molten pool is formed to achieve the purpose of welding.

[0003] Laser welding has the advantages of a wide range of welding materials and can be automated for high-speed welding. However, in order to ensure the quality and stability of continuous, high-speed welding, the workpiece needs to be positioned during welding.

[0004] The traditional positioning method is generally fixed clamping, but when facing a circumferential welding position such as arc welding, welding cannot be completed in one go, resulting in the welding part adjusting the position of the workpiece before continuing welding. Not only is the welding quality poor, but the adjustment process is also prone to cause cracks in the first welded part. Based on this, the utility model proposes a laser welding positioning device that can solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a laser welding positioning device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a laser welding positioning device, comprising:

[0007] A truss having a top plate and a bottom plate spaced vertically thereon;

[0008] A support plate is movably connected to the bottom plate, a sink groove is provided on the support plate, the sink groove is used to place the lower workpiece, and a limit position component is arranged in the sink groove;

[0009] A cover plate is movably connected to the top plate, at least one set of telescopic sources is installed on the cover plate, the movable rods of the telescopic sources extend vertically downward and are connected to a ring plate, the ring plate is screwed with a plurality of abutment rods, and the plurality of abutment rods can abut the upper workpiece against the middle of the ring plate;

[0010] A power assembly is arranged on the bottom plate, and the power assembly is connected to the support plate;

[0011] The telescopic source can drive the ring plate to move downward, thereby driving the upper workpiece to be pressed onto the lower workpiece to form a welding position, and the power assembly can drive the support plate to rotate and adjust the welding position.

[0012] As a preferred technical solution, a straight rod is provided on the ring plate, and the straight rod extends vertically upward and passes through the cover plate.

[0013] As a preferred technical solution, the inner end of each of the abutment rods is provided with a rubber block that can contact the upper workpiece.

[0014] As a preferred technical solution, the power assembly includes a power source installed on a base plate and a shaft column connected to the support plate, the output end of the power source is connected to a main gear, the shaft column is connected to a slave gear, and the main gear is meshed with the slave gear.

[0015] As a preferred technical solution, the limiting assembly includes a plurality of straight grooves arranged at the bottom of the sink, each of the straight grooves is slidably connected with a push block, and each of the straight grooves is provided with a spring, which is connected to the push block and is used to push the push block to contact the lower workpiece.

[0016] As a preferred technical solution, a telescopic rod is provided on the support plate, and a slot is provided on the cover plate, and the telescopic rod can be inserted upward into the slot.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The telescopic source drives the ring plate to move downward, driving the upper workpiece to be pressed against the lower workpiece to form a welding position, so that the upper workpiece and the lower workpiece are vertically butted to form a welding position, and maintain high stability under the pressure of the telescopic source;

[0019] During the laser welding process, the support plate is driven by the power source to rotate. Since the upper workpiece and the lower workpiece are pressed together, the support plate, cover plate, upper workpiece and lower workpiece rotate synchronously at this time, thereby adjusting the welding position so that the welding can be completed in one go with high welding quality, avoiding welding cracks when the position of a part of the welding is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the connection relationship between the cover plate and the top plate of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection relationship between the support plate and the base plate of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0024] Figure 5 This is a schematic diagram of the connection relationship between the ring plate and the cover plate of the utility model;

[0025] In the figure: 10, truss; 11, top plate; 12, bottom plate; 20, support plate; 21, sink groove; 22, telescopic rod; 30, power assembly; 31, power source; 311, main gear; 32, shaft column; 321, slave gear; 40, cover plate; 401, slot; 41, telescopic source; 42, ring plate; 43, push rod; 431, rubber block; 44, straight rod; 50, limit assembly; 51, straight groove; 52, push block; 53, spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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 in 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.

[0027] See also Figure 1-5 , a laser welding positioning device is provided to solve the problem that when facing a circumferential welding position such as arc welding, welding cannot be completed in one go, resulting in a part of the welding being adjusted to the workpiece before continuing welding, which not only has poor welding quality, but also easily causes the first welded part to crack during the adjustment process. The specific embodiment is analyzed as follows:

[0028] See also Figure 1 A top plate 11 and a bottom plate 12 are vertically spaced apart on the truss 10 .

[0029] See also Figure 4 The support plate 20 is rotatably connected to the bottom plate 12, and a sink 21 is provided on the support plate 20, and the sink 21 is used to place the lower workpiece; the sink 21 is recessed downward, and the lower workpiece is initially laterally limited by the sink 21, so that the lower workpiece will not leave the sink 21 area.

[0030] See also Figure 1 , Figure 5 The cover plate 40 is rotatably connected to the top plate 11, and a telescopic source 41 is installed on the cover plate 40. The movable rod of the telescopic source 41 extends vertically downward and is connected to a ring plate 42. The ring plate 42 is screwed with multiple abutment rods 43, and the multiple abutment rods 43 can abut the upper workpiece against the middle of the ring plate 42.

[0031] The telescopic source 41 is preferably a telescopic component such as a hydraulic cylinder or an electric cylinder. After the upper workpiece is placed inside the ring plate 42, multiple abutment rods 43 are rotated in sequence to make the multiple abutment rods 43 abut against the upper workpiece, thereby abutting the upper workpiece against the middle of the ring plate 42 and keeping it fixed.

[0032] The telescopic source 41 drives the ring plate 42 to move downward, driving the upper workpiece to be pressed against the lower workpiece to form a welding position, that is, the upper workpiece and the lower workpiece are vertically connected to form a welding position, and maintain high stability under the pressure of the telescopic source 41.

[0033] See also Figure 1 , Figure 3 The power assembly 30 is arranged on the base plate 12, and the power assembly 30 is connected to the support plate 20. The power assembly 30 includes a power source 31 installed on the base plate 12 and a shaft column 32 connected to the support plate 30. The output end of the power source 31 is connected to a main gear 311, and the shaft column 32 is connected to a slave gear 321. The main gear 311 is meshed with the slave gear 321.

[0034] The power source 31 is preferably a motor, and the power assembly 30 can drive the support plate 20 to rotate and adjust the welding position. During the laser welding process, the support plate 20 is driven to rotate by the driving action of the power source 31. Since the upper workpiece and the lower workpiece are pressed together, at this time, the support plate 20, the cover plate 40, the upper workpiece and the lower workpiece rotate synchronously, thereby adjusting the welding position, so that the welding can be completed at one time, the welding quality is high, and the welding cracking when the position of a part of the welding is adjusted is avoided.

[0035] It should be noted that the speed at which the support plate 20, the cover plate 40, the upper workpiece and the lower workpiece rotate synchronously is adjustable, preferably adapted to the speed of laser welding to avoid too fast or too slow rotation speed.

[0036] Example 2

[0037] See also Figure 5 A straight rod 44 is provided on the ring plate 42 , and the straight rod 44 extends vertically upward and penetrates the cover plate 40 , so as to guide the movement of the ring plate 42 .

[0038] See also Figure 5 A rubber block 431 that can contact the upper workpiece is provided at the inner end of each push rod 43, so that when the push rod 43 is rotated, the rubber block 431 can protect the upper workpiece and avoid damage to the upper workpiece.

[0039] See also Figure 2 , Figure 3 A telescopic rod 22 is provided on the support plate 20, and a slot 401 is provided on the cover plate 40. The telescopic rod 22 can be inserted upward into the slot 401. After the upper workpiece and the lower workpiece are abutted against each other, the telescopic rod 22 is stretched to make the telescopic rod 22 inserted upward into the slot 401, thereby realizing the transmission connection between the support plate 20 and the cover plate 40, further improving the smoothness of the synchronous rotation of the support plate 20, the cover plate 40, the upper workpiece and the lower workpiece.

[0040] Example 3

[0041] See also Figure 4A limit assembly 50 is provided in the sink 21, and the limit assembly 50 is used to limit the placed lower workpiece. The limit assembly 50 includes a plurality of straight grooves 51 provided at the bottom of the sink 21, and a push block 52 is slidably connected to each straight groove 51, and a spring 53 is provided in each straight groove 51, and the spring 53 is connected to the push block 52, and is used to push the push block 52 to contact the lower workpiece.

[0042] After the lower workpiece is placed on the sink groove 21 , the plurality of push blocks 52 slide along the straight groove 51 under the action of the springs 53 to approach the lower workpiece, thereby playing a positioning role for the lower workpiece.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding positioning device, characterized in that: include: A truss (10) on which a top plate (11) and a bottom plate (12) are vertically spaced apart; A support plate (20) is movably connected to the bottom plate (12), a sink (21) is provided on the support plate (20), the sink (21) is used to place the lower workpiece, and a limit position assembly (50) is arranged in the sink (21); A cover plate (40) is movably connected to the top plate (11), and at least one set of telescopic sources (41) is installed on the cover plate (40). The movable rods of the telescopic sources (41) extend vertically downward and are connected to a ring plate (42). The ring plate (42) is screwed with a plurality of abutment rods (43). The plurality of abutment rods (43) can abut the upper workpiece against the middle of the ring plate (42); A power assembly (30) is disposed on the base plate (12), and the power assembly (30) is connected to the support plate (20); The telescopic source (41) can drive the ring plate (42) to move downward, thereby driving the upper workpiece to be pressed onto the lower workpiece to form a welding position, and the power assembly (30) can drive the support plate (20) to rotate and adjust the welding position.

2. A laser welding positioning device according to claim 1, characterized in that: A straight rod (44) is arranged on the ring plate (42), and the straight rod (44) extends vertically upward and penetrates the cover plate (40).

3. A laser welding positioning device according to claim 1, characterized in that: The inner end of each of the abutting rods (43) is provided with a rubber block (431) that can contact the upper workpiece.

4. A laser welding positioning device according to claim 1, characterized in that: The power assembly (30) comprises a power source (31) mounted on a base plate (12) and a shaft column (32) connected to the support plate (20); an output end of the power source (31) is connected to a main gear (311); the shaft column (32) is connected to a slave gear (321); the main gear (311) is meshed with the slave gear (321).

5. The laser welding positioning device according to claim 1, characterized in that: The limiting assembly (50) comprises a plurality of straight grooves (51) arranged at the bottom of the sink (21), each of the straight grooves (51) being slidably connected with a push block (52), and each of the straight grooves (51) being provided with a spring (53), the spring (53) being connected to the push block (52) and being used for pushing the push block (52) to contact the lower workpiece.

6. The laser welding positioning device according to claim 1, characterized in that: The support plate (20) is provided with a telescopic rod (22), and the cover plate (40) is provided with a slot (401), and the telescopic rod (22) can be inserted upward into the slot (401).

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