Multi-station automobile part laser welding equipment

Abstract

The utility model discloses multi-station automobile part laser welding equipment, which belongs to the technical field of automobile part processing, and comprises a working table, four three-axis slide rail modules are fixedly connected onto the working table, laser welding head assemblies are arranged on the four three-axis slide rail modules, the bottom end of the working table is fixedly connected with a track disc, and the track disc is fixedly connected with a laser welding head. Four station frames are slidably connected to the rail disc and correspond to the four laser welding head assemblies correspondingly, pulley blocks are rotatably connected to the bottom ends of the four station frames, the four pulley blocks are slidably connected to the inner side wall of the rail disc, gear motors are fixedly connected to the four station frames, and the gear motors are connected to the bottom ends of the four station frames. The conveying ends of the four speed reducing motors are fixedly connected with driving gears; according to the automobile part laser welding device, the four laser welding head assemblies conduct laser welding on welding points on different faces of an automobile part, materials are taken after laser welding of a plurality of faces is completed, the welding positions do not need to be frequently transferred and adjusted among a plurality of stations, and work efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and more specifically, to a multi-station laser welding equipment for automotive parts. Background Technology

[0002] Automotive parts are the various units that make up a car and the products that serve the car. The processing of automotive parts is a complex and delicate process that involves multiple links and various technologies. Among them, laser welding technology, as a link in the processing of automotive parts, enables the automotive parts to maintain a stable connection.

[0003] Currently, laser welding equipment is required for the laser welding of automotive parts. This equipment uses a high-energy-density laser beam as a heat source to weld the automotive parts into shape. However, most existing laser welding equipment typically consists of multiple stations, each designed for different welding positions on the automotive parts. When the automotive parts are transferred to different welding stations, frequent loading and unloading of materials is required, resulting in low work efficiency. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a multi-station laser welding equipment for automotive parts. This aims to solve the problem that existing laser welding equipment typically consists of multiple stations, each for different welding positions on the automotive parts. When the automotive parts are transferred to different welding stations, frequent material handling is required, resulting in low work efficiency.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A multi-station laser welding equipment for automotive parts includes a worktable with four three-axis slide rail modules fixedly connected to it. Each of the four three-axis slide rail modules is equipped with a laser welding head assembly. A track disk is fixedly connected to the bottom of the worktable, and four workstation frames are slidably connected to the track disk, each workstation frame corresponding to one of the four laser welding head assemblies. Each of the four workstation frames has a pulley system rotatably connected to its bottom end, and these pulley systems are slidably connected to the inner wall of the track disk. A reduction motor is fixedly connected to each of the four workstation frames, and a drive gear is fixedly connected to the conveying end of each of the four reduction motors. The four drive gears are located below each of the four workstation frames. A gear ring is fixedly connected to the circumferential surface of the worktable, and the gear ring meshes with the four drive gears. Each of the four workstation frames has a drive motor fixedly connected to its bottom end. The output ends of the four drive motors are fixedly connected to threaded tubes, and the four threaded tubes are located inside the four workstation frames respectively. Each of the four threaded tubes has a screw threadedly connected to its inside. The top ends of the four screws are fixedly connected to a base. Each of the four workstation frames has a set of two adjusting rods movably inserted into its symmetrical two-sided ends. The two ends of each set of two adjusting rods that are close to each other are fixedly connected to a side clamping plate. Each pair of side clamping plates corresponds to a base. Positioning pins are fixedly connected to the eight side clamping plates and the four bases. Each of the four workstation frames is equipped with a clamping mechanism and a rotating mechanism. The four clamping mechanisms are used to clamp and fix the automotive parts, and the four rotating mechanisms are used to adjust the angle of the automotive parts.

[0009] As a preferred embodiment of this utility model, each of the clamping mechanisms includes a nut, two rotating rings and two connecting rods. The nut is threadedly connected to the circumferential surface of a threaded tube. The two rotating rings are respectively rotatably connected to the circumferential surfaces of a set of two adjusting rods. The two connecting rods are respectively hinged between the two rotating rings and the nut via hinge shafts.

[0010] In a preferred embodiment of this utility model, each of the rotating mechanisms includes two worm gears, two worms, two pulleys, a drive wheel, and two transmission belts. The two worm gears are rotatably connected to the symmetrical ends of a workstation frame, and are slidably connected to the circumferential surfaces of a set of two adjusting rods. The two worms are rotatably connected to a workstation frame, and mesh with the two worm gears. The two pulleys are fixedly connected to the bottom ends of the two worms, and are located on the lower side of the workstation frame. The drive wheel is fixedly connected to the bottom end of a drive gear. The two transmission belts are respectively connected between the two pulleys and the drive wheel.

[0011] As a preferred embodiment of this utility model, each of the two adjusting rods in each group has a rotating groove on its circumferential surface, and the inner circumferential walls of the two rotating rings are fixedly connected to the rotating grooves, and the two rotating protrusions are respectively rotatably connected to the two rotating grooves.

[0012] As a preferred embodiment of this utility model, each of the two adjusting rods in each group has a set of sliding grooves on its circumferential surface, and the inner circumferential walls of the two worm gears are fixedly connected with a set of protrusions, and the two sets of protrusions are slidably connected in the two sets of sliding grooves respectively.

[0013] As a preferred embodiment of this utility model, each of the four workstation frames is fixedly connected to a fixed rod assembly, and four nuts are slidably connected to the circumferential surface of the four fixed rod assemblies.

[0014] As a preferred embodiment of this utility model, each of the four bases is fixedly connected to a rod assembly at its bottom end, and the four rod assemblies pass through the four workstation frames respectively.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this solution, the four workstations are four movable welding workstations. Each workstation is fixed with a clamping mechanism, and then the automotive parts are rotated around the worktable. During the movement, the automotive parts are rotated by four rotating mechanisms, so that different welding positions of the automotive parts correspond to different laser welding head assemblies. The four laser welding head assemblies perform laser welding on the welding points on different surfaces of the automotive parts. After the laser welding of multiple surfaces is completed, the material is picked up. There is no need to frequently transfer and adjust the welding position between multiple workstations, which improves work efficiency. Moreover, the staff only needs to pick up and put down the material for each rotated workstation in one position, which effectively reduces labor costs. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a top sectional view of the present invention;

[0020] Figure 3 This is a structural diagram of some components of this utility model;

[0021] Figure 4 This is a structural diagram of the components on the workstation frame in this utility model;

[0022] Figure 5 In this utility model Figure 4 Exploded view;

[0023] Figure 6 This is a structural diagram of the clamping mechanism in this utility model;

[0024] Figure 7 In this utility model Figure 6 Exploded view;

[0025] Figure 8 This is a structural diagram of the rotating mechanism in this utility model;

[0026] Figure 9 In this utility model Figure 8 Exploded view.

[0027] Explanation of the labels in the diagram:

[0028] 1. Workbench; 2. Three-axis slide rail module; 3. Laser welding head assembly; 4. Track plate; 5. Workstation frame; 6. Pulley block; 7. Gear motor; 8. Drive gear; 9. Drive motor; 10. Threaded pipe; 11. Screw; 12. Base; 13. Adjusting rod; 14. Side clamp; 15. Positioning pin; 161. Nut; 162. Rotating ring; 163. Connecting rod; 171. Worm gear; 172. Worm; 173. Pulley; 174. Drive wheel; 175. Transmission belt; 18. Rotary groove; 19. Rotating protrusion; 20. Slide groove assembly; 21. Protrusion assembly; 22. Fixed rod assembly; 23. Insert rod assembly; 24. Gear ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example:

[0033] Please see Figure 1-9 A multi-station laser welding equipment for automotive parts includes a worktable 1, on which four three-axis slide rail modules 2 are fixedly connected. Each of the four three-axis slide rail modules 2 is equipped with a laser welding head assembly 3. A track disk 4 is fixedly connected to the bottom of the worktable 1, and four workstation frames 5 are slidably connected to the track disk 4, with each workstation frame 5 corresponding to one of the four laser welding head assemblies 3. Each of the four workstation frames 5 has a pulley group 6 rotatably connected to its bottom end, and the pulley groups 6 are slidably connected to the inner wall of the track disk 4. Each of the four workstation frames 5 has a reduction motor 7 fixedly connected, and each of the four reduction motor 7 has a drive gear 8 fixedly connected to its conveying end, with the four drive gears 8 located on the lower side of each of the four workstation frames 5. A gear ring 24 is fixedly connected to the circumferential surface of the worktable 1, and the gear ring 24 meshes with the four drive gears 8. Each of the four workstation frames 5 has a drive motor 9 fixedly connected to its bottom end. The output ends of the four drive motors 9 are all fixedly connected to threaded tubes 10, and the four threaded tubes 10 are located inside the four workstation frames 5 respectively. Each of the four threaded tubes 10 has a screw 11 threadedly connected to its inside. The top ends of the four screws 11 are all fixedly connected to a base 12. Each of the four workstation frames 5 has a set of adjusting rods 13 movably inserted into its symmetrical two-sided ends. Each set of adjusting rods 13 consists of two rods. The end of each set of two adjusting rods 13 that is close to each other is fixedly connected to a side clamping plate 14. Each pair of side clamping plates 14 corresponds to one base 12. Each of the eight side clamping plates 14 and the four bases 12 is fixedly connected to a positioning pin 15. Each of the four workstation frames 5 is equipped with a clamping mechanism and a rotating mechanism. The four clamping mechanisms are used to clamp and fix the automotive parts, and the four rotating mechanisms are used to adjust the angle of the automotive parts.

[0034] In this embodiment, when welding automotive parts, the automotive parts are placed on a base 12 inside two side clamping plates 14. Positioning pins 15 on the base 12 are used to position the automotive parts. Then, the drive motor 9 is started, causing the threaded tube 10 to rotate and the screw 11 to move downwards. The screw 11 moves the base 12 downwards away from the automotive parts. Simultaneously, during the rotation of the threaded tube 10, the clamping mechanism pushes two adjusting rods 13, causing the two side clamping plates 14 to move closer together and clamp the automotive parts. The positioning pins 15 on the two side clamping plates 14 position the automotive parts from both sides, ensuring stability. A three-axis slide rail module 2 controls the movement of the laser welding head assembly 3 to perform laser welding on the automotive parts. After welding is completed at the current position, the reduction motor 7 controls the rotation of the drive gear 8. The drive gear 8 meshes with the gear ring 24, causing the workstation frame 5 to rotate around the worktable 1. The workstation frame 5 moves stably on the track plate 4 via the pulley group 6, moving the automotive parts to the position corresponding to the next laser welding head assembly 3. During the movement, the drive gear 8 controls the rotation of two adjusting rods 13 through a rotating mechanism. The two adjusting rods 13 drive the two side clamping plates 14 to rotate in the same direction, so that the car parts are adjusted to the required angle when they are aligned with the next laser welding head assembly 3, which facilitates the next laser welding head assembly 3 to weld different welding positions of the car parts. There are four laser welding head assemblies 3 and four workstation frames 5. The four laser welding head assemblies 3 adjust the welding position through four three-axis slide rail modules 2, which can weld each car part passing on the four workstation frames 5 at different positions. The four workstation frames 5 move simultaneously. When the car parts on one workstation frame 5 are being welded, the remaining three workstation frames 5 adjust the car parts to other angles and weld them to the other three laser welding head assemblies 3 respectively. After multiple positions of the car parts are welded, the drive motor 9 controls the threaded tube 10 to rotate in the opposite direction, so that the screw 11 drives the base 12 to rise and lift the car parts. The clamping mechanism controls the two side clamping plates 14 to open, thereby removing the car parts.

[0035] Specifically, each clamping mechanism includes a nut 161, two rotating rings 162 and two connecting rods 163. The nut 161 is threaded to the circumferential surface of a threaded tube 10. The two rotating rings 162 are rotatably connected to the circumferential surfaces of a set of two adjusting rods 13. The two connecting rods 163 are movably hinged between the two rotating rings 162 and the nut 161 through hinge pins.

[0036] In this embodiment, the automotive parts are placed on the base 12 within the two side clamps 14. The drive motor 9 controls the rotation of the threaded tube 10, causing the screw 11 to move the base 12 downward. At the same time, the threaded tube 10 causes the nut 161 to move downward. The nut 161, through two connecting rods 163, causes two adjusting rods 13 to slide on the workstation frame 5. The two adjusting rods 13 push the two side clamps 14 closer together to clamp and fix the automotive parts, facilitating the welding of the automotive parts and subsequent adjustments to other welding angles.

[0037] Specifically, each rotating mechanism includes two worm gears 171, two worms 172, two pulleys 173, a drive wheel 174, and two transmission belts 175. The two worm gears 171 are rotatably connected to the symmetrical ends of a workstation frame 5, and the two worm gears 171 are slidably connected to the circumferential surfaces of a set of two adjusting rods 13. The two worms 172 are rotatably connected to a workstation frame 5, and the two worms 172 mesh with the two worm gears 171 respectively. The two pulleys 173 are fixedly connected to the bottom ends of the two worms 172, and the two pulleys 173 are located on the lower side of a workstation frame 5. The drive wheel 174 is fixedly connected to the bottom end of a drive gear 8. The two transmission belts 175 are respectively connected between the two pulleys 173 and the drive wheel 174.

[0038] In this embodiment, after the automotive parts held by the two side clamps 14 are welded at one position, the drive motor 9 controls the drive gear 8 to rotate. The drive gear 8, through meshing with the gear ring 24, causes the workstation frame 5 to move to the next welding position. During the movement of the workstation frame 5, the drive gear 8 drives the drive wheel 174 to rotate. The drive wheel 174 drives the two pulleys 173 to rotate through the two transmission belts 175. The two pulleys 173 cause the two worm gears 172 to rotate. The two worm gears 172 drive the two adjusting rods 13 to rotate through the two worm wheels 171. When the workstation frame 5 rotates to correspond with the laser welding head assembly 3 of the next welding position, the two adjusting rods 13 rotate the held automotive parts by ninety degrees, so that the welding position of the automotive parts corresponds exactly with the laser welding head assembly 3 for laser welding.

[0039] Specifically, each of the two adjusting rods 13 has a rotating groove 18 on its circumferential surface, and the inner circumferential walls of the two rotating rings 162 are fixedly connected to the rotating groove 18, and the two rotating protrusions 19 are respectively rotatably connected to the two rotating grooves 18.

[0040] In this embodiment, when the two worm gears 171 drive the two adjusting rods 13 to rotate, the two rotating rings 162 are connected by the rotation of the two rotating protrusions 19 and the two rotating grooves 18, which only allows the two adjusting rods 13 to slide on the workstation frame 5, without affecting the rotation of the two adjusting rods 13 by the two worm gears 171.

[0041] Specifically, each of the two adjusting rods 13 has a groove group 20 on its circumferential surface, and the inner circumferential walls of the two worm gears 171 are fixedly connected with a protrusion group 21, and the two protrusion groups 21 are slidably connected to the two groove groups 20 respectively.

[0042] In this embodiment, when the two rotating rings 162 drive the two adjusting rods 13 to slide, the two worm gears 171 are slidably connected through the two sliding groove groups 20 and the two protrusion groups 21, which can only drive the two adjusting rods 13 to rotate, and will not affect the movement of the two adjusting rods 13 driven by the two rotating rings 162.

[0043] Specifically, each of the four workstation frames 5 is fixedly connected to a fixed rod assembly 22, and four nuts 161 are slidably connected to the circumferential surface of the four fixed rod assemblies 22.

[0044] In this embodiment, the four fixed rod groups 22 are used to assist the lifting and lowering of the four nuts 161, so that the up and down movement of the four nuts 161 remains stable.

[0045] Specifically, each of the four bases 12 has a fixed connection to a rod assembly 23 at its bottom, and the four rod assemblies 23 pass through the four workstation frames 5 respectively.

[0046] In this embodiment, the four insertion rod groups 23 slide on the four workstation frames 5 as the four bases 12 rise and fall, ensuring the stability of the four bases 12 moving up and down.

[0047] Working principle: When welding automotive parts, the operator only needs to load the parts at one workstation. The parts are placed on a base 12 inside two side clamps 14, and positioned by locating pins 15 on the base 12. Then, the drive motor 9 is started, causing the threaded tube 10 to rotate, moving the screw 11 downwards. The screw 11 moves the base 12 downwards away from the automotive parts. Simultaneously, the rotation of the threaded tube 10 causes the nut 161 to move downwards. The nut 161, through two connecting rods 163, moves two adjusting rods 13 at the workstation frame. 5. Sliding upwards, two adjusting rods 13 drive two side clamps 14 to move closer together to clamp the automotive parts. Positioning pins 15 on the two side clamps 14 position the automotive parts from both sides, keeping them stable. Then, a three-axis slide rail module 2 controls the movement of the laser welding head assembly 3 to perform laser welding on the automotive parts. After the automotive parts are welded at the current position, the reduction motor 7 controls the rotation of the drive gear 8. The drive gear 8, through meshing with the gear ring 24, causes the workstation frame 5 to rotate around the worktable 1. The workstation frame 5 moves stably on the track plate 4 via the pulley group 6, keeping the automotive parts... Moving to the position corresponding to the next laser welding head assembly 3, all four workstations 5 move the automotive parts to the next welding position in the same manner. During the movement of the automotive parts, each drive gear 8 drives a drive wheel 174 to rotate. Each drive wheel 174 drives two pulleys 173 to rotate via two transmission belts 175. The two pulleys 173 drive two worm gears 172 to rotate. The two worm gears 172 drive two adjusting rods 13 to rotate via two worm wheels 171. The two adjusting rods 13 drive two side clamps 14 to rotate in the same direction. When the four workstations 5 rotate to the position corresponding to the next laser welding head assembly 3, the automotive parts are moved to the next welding position. When the laser welding head assembly 3 is aligned with the welding position, every two adjusting rods 13 rotate the clamped automotive parts by 90°, so that the welding position of the automotive parts is exactly aligned with the next laser welding head assembly 3 for laser welding. The next laser welding head assembly 3 welds different welding positions of the automotive parts. When the automotive parts rotate 360° around the worktable 1 to the initial welding position, the two side clamps 14 drive the automotive parts to rotate 360°. The four laser welding head assemblies 3 complete the welding of multiple positions of the automotive parts. Finally, the welded automotive parts are taken out at the initial welding position.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A multi-station laser welding equipment for automotive parts, comprising a worktable (1), characterized in that: Four three-axis slide rail modules (2) are fixedly connected to the workbench (1). Each of the four three-axis slide rail modules (2) is equipped with a laser welding head assembly (3). A track plate (4) is fixedly connected to the bottom of the workbench (1). Four workstation frames (5) are slidably connected to the track plate (4), and the four workstation frames (5) correspond to the four laser welding head assemblies (3) respectively. The bottom of each of the four workstation frames (5) is rotatably connected to a pulley group (6), and the four pulley groups... (6) All are slidably connected to the inner side wall of the track plate (4). Each of the four workstations (5) is fixedly connected to a reduction motor (7). The conveying end of each of the four reduction motors (7) is fixedly connected to a drive gear (8). The four drive gears (8) are located on the lower side of the four workstations (5). A gear ring (24) is fixedly connected to the circumferential surface of the worktable (1). The gear ring (24) meshes with the four drive gears (8). The bottom ends of the four workstations (5) are all A drive motor (9) is fixedly connected to each of the four drive motors (9). The output ends of each drive motor (9) are fixedly connected to a threaded tube (10). The four threaded tubes (10) are located inside the four workstation frames (5). Each of the four threaded tubes (10) is threaded with a screw (11). The top of each screw (11) is fixedly connected to a base (12). Each of the four workstation frames (5) has a set of adjusting rods (13) movably inserted into each of the two symmetrical ends. Each set of adjusting rods (13) consists of two rods. Each set of two adjusting rods (13) has a side clamp (14) fixedly connected to one end that is close to each other. Each set of two side clamps (14) corresponds to one base (12). Each of the eight side clamps (14) and the four bases (12) is fixedly connected to a positioning pin (15). Each of the four workstation frames (5) is equipped with a clamping mechanism and a rotating mechanism. The four clamping mechanisms are used to clamp and fix the automotive parts. The four rotating mechanisms are used to adjust the angle of the automotive parts.

2. The multi-station laser welding equipment for automotive parts according to claim 1, characterized in that: Each of the clamping mechanisms includes a nut (161), two rotating rings (162) and two connecting rods (163). The nut (161) is threaded to the circumferential surface of a threaded tube (10). The two rotating rings (162) are rotatably connected to the circumferential surfaces of a set of two adjusting rods (13). The two connecting rods (163) are movably hinged between the two rotating rings (162) and the nut (161) through hinge pins.

3. The multi-station laser welding equipment for automotive parts according to claim 2, characterized in that: Each of the rotating mechanisms includes two worm gears (171), two worms (172), two pulleys (173), a drive wheel (174), and two transmission belts (175). The two worm gears (171) are rotatably connected to the symmetrical ends of a workstation frame (5), and the two worm gears (171) are slidably connected to the circumferential surfaces of a set of two adjusting rods (13). The two worms (172) are rotatably connected to a workstation frame (5), and the two worms (172) mesh with the two worm gears (171). The two pulleys (173) are fixedly connected to the bottom ends of the two worms (172), and the two pulleys (173) are located on the lower side of a workstation frame (5). The drive wheel (174) is fixedly connected to the bottom end of a drive gear (8). The two transmission belts (175) are respectively driven between the two pulleys (173) and the drive wheel (174).

4. The multi-station laser welding equipment for automotive parts according to claim 3, characterized in that: Each set of two adjusting rods (13) has a rotating groove (18) on its circumferential surface. The inner circumferential walls of the two rotating rings (162) are fixedly connected to the rotating groove (18), and the two rotating protrusions (19) are respectively rotatably connected to the two rotating grooves (18).

5. The multi-station laser welding equipment for automotive parts according to claim 4, characterized in that: Each of the two adjusting rods (13) has a groove group (20) on its circumferential surface, and the inner circumferential walls of the two worm gears (171) are fixedly connected with a protrusion group (21), and the two protrusion groups (21) are slidably connected in the two groove groups (20).

6. The multi-station laser welding equipment for automotive parts according to claim 5, characterized in that: Each of the four workstation frames (5) is fixedly connected to a fixed rod group (22), and four nuts (161) are slidably connected to the circumferential surface of the four fixed rod groups (22).

7. The multi-station laser welding equipment for automotive parts according to claim 6, characterized in that: The bottom ends of the four bases (12) are all fixedly connected with plug rod groups (23), and the four plug rod groups (23) pass through the four workstation frames (5) respectively.

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