Automobile plate laser welding feeding shuttle vehicle

Abstract

The invention relates to an automobile plate laser welding feeding shuttle vehicle which comprises a vehicle body, a lifting driving assembly is arranged in the vehicle body, a centering cross beam is arranged at the upper end of the lifting driving assembly, a check block assembly is arranged on the centering cross beam, and the check block assembly comprises a check block body, a check block base and a check block limiting plate. Wherein the two sides of the upper end of the centering cross beam are provided with cross beam sliding ways, the two sides of the check block base are provided with limiting protruding parts, the check block base is fixedly connected with the check block limiting plate on the lower side through fastening bolts, and the limiting protruding parts are matched with the corresponding ends of the check block limiting plate to clamp the cross beam sliding ways on the corresponding sides. The stop block body is detachably arranged on the stop block base. Positioning is achieved through cooperation of the stop block assemblies and the positioning holes in the plate tool, the positioning device can be suitable for plate tools of various specifications, positioning is simple and accurate, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of laser welding, in particular to a laser welding feeding shuttle vehicle for automobile plates. Background Art

[0002] Laser welding is an important process in the processing of automobile plates. In the past, automobile plate laser welding was mainly achieved by manual plate loading, which had the problems of high labor cost and low production efficiency. In order to solve the above problems, some automated plate laser welding feeding devices have appeared in the prior art. For example, the patent with authorization announcement number CN110480167B discloses a plate laser welding feeding system, which includes a material rack, a suction cup gripper, a robotic arm and other structures. When the system is used, the robotic arm drives the suction cup gripper to grab the plate. After the suction cup gripper grabs the plate, the double material detection sensor detects whether two or more layers of plate are grabbed. If it is detected that the suction cup gripper grabs two or more layers of plate, the magnetic separation device on the material rack is controlled to separate the two or more layers of plate to ensure normal production. Another example is a patent with authorization announcement number CN207668701U, which discloses a laser welding feeding device, which includes a carrier magazine, a transport carrier, a transport chassis and other structures. When the device is working, the fixed clamp block achieves two effects by using two states inside the adjustment box: clamping and releasing the transport carrier, preventing the carrier magazine from shaking during transportation and the transport carrier from sliding off the inside of the carrier magazine, and clamping and pulling out the transport carrier through the inside of the material taking clamping box during feeding, which has high accuracy and prevents the suction cup and other mechanisms from misaligning when transporting the material body. Another example is a patent with authorization announcement number CN207668701U, which discloses a laser welding feeding device. By setting a first mechanical arm for adjusting the position and direction of the workpiece to be welded and an auxiliary mechanical arm for precise grasping on the horizontal feeding mechanism, the device can complete the positioning and clamping of the workpiece to be welded during feeding, grasping and welding, reducing manual operations and simplifying the preliminary work of technical laser welding.

[0003] With the development of technology, automated conveying equipment such as shuttles have been promoted and applied in many fields. In the field of automobile sheet processing, welding shuttles are also used to transport sheet materials to welding stations for loading. However, with the rapid development of the automobile industry, the specifications and models of automobile sheets are becoming increasingly diversified. When using shuttles for loading, the sheets need to be placed on sheet tooling first, and then the sheet tooling is placed on the shuttle for transportation. Different specifications of sheet products have different corresponding sheet tooling. How to ensure that sheet tooling of various specifications can be accurately positioned on the shuttle is a problem that needs to be considered. In addition, in the prior art, it is often necessary to use a loading electromagnet to adsorb the sheet to achieve loading, which also puts higher requirements on the positioning of sheet loading. Once the positioning of the sheet deviates during the transmission process or the loading process, it will easily lead to problems such as inaccurate subsequent welding positions. Summary of the invention

[0004] The object of the present invention is to provide a shuttle for feeding automobile plates by laser welding, which realizes positioning by cooperating with the positioning holes on the plate tooling through the stopper assembly, can be applied to plate tooling of various specifications, has simple and accurate positioning, and improves production efficiency.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A shuttle car for laser welding of automobile plates, characterized in that it includes a car body, and a lifting drive assembly is arranged inside the car body, a centering beam is arranged at the upper end of the lifting drive assembly, and a block assembly is arranged on the centering beam, the block assembly includes a block body, a block base and a block limiting plate, wherein beam slideways are arranged on both sides of the upper end of the centering beam, and limiting protrusions are arranged on both sides of the block base, the block base is fixedly connected to the block limiting plate on the lower side by fastening bolts, and the limiting protrusions cooperate with the corresponding ends of the block limiting plate to clamp the beam slideways on the corresponding sides, and the block body is detachably arranged on the block base.

[0007] According to the automobile plate laser welding feeding shuttle, it is characterized in that: mounting side plates are provided on both sides of the block body, and a first mounting hole is provided on the mounting side plates, a positioning plug is provided at the lower end of the block body, a groove is formed in the middle of the block base, and a slot and a second mounting hole are provided at the bottom of the groove, the positioning plug at the lower end of the block body is inserted into the slot on the block base, the mounting side plates on both sides of the block body are fixed in the groove of the block base by mounting bolts, and the mounting bolts pass through the first mounting hole and the second mounting hole on the corresponding side in sequence. According to the automobile sheet laser welding feeding shuttle, it is characterized in that: connecting holes for the fastening bolts to pass through are provided at both ends of the block base, and two connecting holes are respectively provided on both sides of the groove. According to the automobile sheet laser welding feeding shuttle, it is characterized in that: the crossbeam slideway is fixed on the centering crossbeam by slideway fixing bolts. According to the automobile sheet laser welding feeding shuttle, it is characterized in that: the lifting drive assembly includes a double-output shaft motor, a transmission shaft, a transmission box and a lifting drive shaft, wherein the output shafts on both sides of the double-output shaft motor are respectively connected to the transmission shafts on the corresponding sides, and the transmission box is provided with a first bevel gear and a second bevel gear whose axes are at right angles to each other, wherein the first bevel gear is mounted on the transmission shaft on the corresponding side, and a nut is provided inside the second bevel gear, and a screw segment is provided on the lifting drive shaft, and the nut is mounted on the screw segment corresponding to the lifting drive shaft. According to the automobile sheet laser welding feeding shuttle vehicle, it is characterized in that a plurality of auxiliary support shafts are arranged inside the vehicle body. According to the automobile sheet laser welding feeding shuttle, it is characterized in that: the vehicle body is installed on a chassis, wherein slide rails are provided on both sides of the chassis, sliders are provided on both sides of the vehicle body to cooperate with the slide rails on the corresponding sides, racks are provided on either side of the chassis, gears and travel motors are provided inside the vehicle body, and the gears cooperate with the racks and are driven to rotate by the travel motor. The advantages and positive effects of the present invention are:

[0008] 1. The present invention realizes positioning by cooperating the stopper assembly with the positioning hole on the plate tooling, and can be applied to plate tooling of various specifications. The positioning is simple and accurate, and the production efficiency is improved at the same time.

[0009] 2. The stopper assembly of the present invention can be moved and adjusted along the centering beam according to the plate tooling conditions, and the stopper body of different specifications and shapes can be replaced according to actual needs. It is flexible to use and has a wide range of applications.

[0010] 3. The overall structure of the present invention is compact and can be integrated into the body of the welding shuttle. When the plate tool is installed on the body, the block body can be raised to limit the displacement of the plate tool, thereby ensuring accurate positioning of the plate during the transmission process. When the body is moved into place, the block body can cooperate with the upper positioning block of the welding station to locate the plate position, so as to ensure accurate adsorption of the feeding electromagnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view of the present invention,

[0012] Figure 2 for Figure 1 Partial schematic diagram of the lifting drive assembly inside the middle car body.

[0013] Figure 3 for Figure 2 A three-dimensional schematic diagram of the lifting drive assembly.

[0014] Figure 4 for Figure 2 AA view in

[0015] Figure 5 for Figure 4 The enlarged schematic diagram of the stopper assembly in FIG.

[0016] Figure 6 for Figure 5 A three-dimensional schematic diagram of the stopper assembly in FIG.

[0017] Figure 7 for Figure 6 A three-dimensional schematic diagram of the stopper base,

[0018] Figure 8 for Figure 6 A three-dimensional schematic diagram of the block body in FIG.

[0019] Fig. 9 for Figure 5 Schematic diagram of the working status of an application example of the middle stopper assembly.

[0020] Among them, 1 is a car body, 2 is a base frame, 201 is a rack, 202 is a slide rail, 3 is a lifting drive assembly, 301 is a centering beam, 3011 is a beam slide, 3012 is a slide fixing bolt, 302 is a block assembly, 3021 is a block body, 30211 is a mounting side plate, 30212 is a first mounting hole, 30213 is a positioning plug, 3022 is a fastening bolt, 3023 is a block base, 30231 is a connecting hole, 30232 is a slot, 30233 is a second mounting hole, 30234 is a limiting protrusion, 3024 is a block limiting plate, 303 is a lifting drive shaft, 304 is a transmission shaft, 305 is a double-output shaft motor, 306 is an auxiliary support shaft, 4 is a feeding electromagnet, and 5 is an upper positioning block. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 9 As shown, the present invention comprises a vehicle body 1, and a lifting drive assembly 3 is provided inside the vehicle body 1, wherein Figures 2 to 8 As shown, the upper end of the lifting drive assembly 3 is provided with a centering beam 301 that can be raised and lowered, and a stopper assembly 302 is provided on the centering beam 301. Figure 5As shown, the block assembly 302 includes a block body 3021, a block base 3023 and a block limiting plate 3024, wherein the upper end of the centering beam 301 is provided with beam slides 3011 on both sides, and the block base 3023 is provided with limiting protrusions 30234 on both sides, the block base 3023 is fixedly connected to the block limiting plate 3024 on the lower side by fastening bolts 3022, and the limiting protrusion 30234 cooperates with the corresponding end of the block limiting plate 3024 to clamp the beam slide 3011 on the corresponding side, and the block body 3021 is detachably arranged on the block base 3023. When the present invention is working, when the plate tool is mounted on the vehicle body 1, the block body 3021 can be driven to rise by the centering beam 301, and the upper end of the block body 3021 can be inserted into the corresponding positioning hole on the plate tool to ensure that the position of the plate station will not change during the transmission process. At the same time, the present invention only needs to open positioning holes at appropriate positions of plate tools of various specifications to achieve positioning, which is conducive to the modification of existing devices. In this way, no matter what specifications of plate tools, they can directly cooperate with the block body 3021 to ensure accurate positioning. Fig. 9 As shown, when the plate tooling is moved into position, the block body 3021 is driven by the centering beam 301 to continue to rise and cooperate with the upper positioning block 5 on the welding station to locate the plate position, and at the same time, the feeding electromagnet 4 can adsorb the plate. In addition, the present invention can also adjust the position of the block base 3023 according to the length of the plate tooling of different specifications, specifically: Figure 5 As shown, when the operator loosens the fastening bolt 3022 (the fastening bolt 3022 does not separate from the block limit plate 3024), the block base 3023 together with the block limit plate 3024 can be moved together along the beam slide 3011 on both sides of the centering beam 301 to adjust the position. When the position of the block base 3023 is determined, the operator retightens the fastening bolt 3022.

[0023] like Figures 5 to 8 As shown, in this embodiment, the block body 3021 is detachably arranged on the block base 3023, so that it is convenient to replace the block body with other suitable shapes and specifications according to different plate tooling conditions, thereby further improving the flexibility and scope of application of the present invention. Figure 8 As shown, the block body 3021 is provided with mounting side plates 30211 on both sides, and the mounting side plates 30211 are provided with first mounting holes 30212, and the lower end of the block body 3021 is provided with a positioning plug 30213, and as shown Figure 7 As shown, a groove is formed in the middle of the stopper base 3023, and a slot 30232 and a second mounting hole 30233 are provided at the bottom of the groove. Figure 6As shown, the positioning plug 30213 at the lower end of the block body 3021 is inserted into the slot 30232 on the block base 3023, and the mounting side plates 30211 on both sides of the block body 3021 are fixed in the grooves of the block base 3023 by mounting bolts, and the mounting bolts pass through the first mounting hole 30212 and the second mounting hole 30233 of the corresponding side in sequence. After removing the two mounting bolts, the operator can pull out the block body 3021 for replacement. The specific shape of the block body 3021 is designed according to actual needs.

[0024] like Figure 7 As shown, in this embodiment, connection holes 30231 for the fastening bolts 3022 to pass through are provided at both ends of the stopper base 3023, and two connection holes 30231 are provided on both sides of the groove.

[0025] like Figure 5 As shown, in this embodiment, the beam slide 3011 is fixed to the centering beam 3011 by a slide fixing bolt 3012 .

[0026] like Figures 2 to 4 As shown, in this embodiment, the lifting drive assembly 3 includes a double-output shaft motor 305, a transmission shaft 304, a transmission box and a lifting drive shaft 303, wherein the output shafts on both sides of the double-output shaft motor 305 are respectively connected to the transmission shaft 304 on the corresponding side, and the transmission box is provided with a first bevel gear and a second bevel gear whose axes are at right angles to each other, wherein the first bevel gear is sleeved on the transmission shaft 304 on the corresponding side, and a nut is provided inside the second bevel gear, and a screw segment is provided on the lifting drive shaft 303, and the nut is sleeved on the screw segment of the corresponding lifting drive shaft 303, when the double-output shaft motor 305 drives the transmission shafts 304 on both sides to rotate synchronously, the transmission shaft 304 drives each first bevel gear thereon to rotate synchronously, and each first bevel gear drives the corresponding second bevel gear to rotate synchronously, and each second bevel gear then drives the lifting drive shaft 303 to realize the lifting action through the internal nut and the screw segment on the corresponding lifting drive shaft 303, and the upper end of each lifting drive shaft 303 is fixedly connected to the centering beam 301 to drive it to lift. The present invention can also adopt lifting drive components of other suitable structures according to actual needs, for example, the lifting drive component in the CN211196002U patent can be adopted.

[0027] like Figures 2 to 4 As shown, in this embodiment, a plurality of auxiliary support shafts 306 can be arranged inside the vehicle body 1 according to actual needs. The auxiliary support shafts 306 do not realize lifting and lowering actions, and they only play the role of auxiliary support and limiting the descending height of the centering beam 301 when the centering beam 301 falls.

[0028] like Figure 1As shown, in this embodiment, the vehicle body 1 is installed on a base frame 2, wherein slide rails 202 are provided on both sides of the base frame 2, and sliders are provided on both sides of the vehicle body 1 to cooperate with the slide rails 202 on the corresponding sides. A rack 201 is provided on either side of the base frame 2, and a gear and a travel motor are provided inside the vehicle body 1. The gear cooperates with the rack 201 and is driven to rotate by the travel motor, thereby driving the vehicle body 1 to move in the base frame 2. This is a well-known technology in the art.

[0029] The working principle of the present invention is:

[0030] When the present invention is working, when the sheet tool is mounted on the vehicle body 1, the centering beam 301 on the vehicle body 1 is driven to rise by the lifting drive assembly, and the upper ends of the block bodies 3021 in the block assemblies 302 on the centering beam 301 are inserted into the corresponding positioning holes on the sheet tool, thereby realizing the positioning of the sheet tool to avoid the position of the sheet tool changing during the transmission process. When the vehicle body 1 carrying the sheet tool is moved into place, Fig. 9 As shown, the centering beam 301 on the vehicle body 1 continues to be driven to rise by the lifting drive assembly. At this time, the block body 3021 cooperates with the upper positioning block 5 on the welding station to jointly locate the plate position, and at the same time realizes the adsorption of the plate by the feeding electromagnet 4

[0031] The stopper assembly 302 of the present invention can be moved and adjusted along the centering beam 301 according to the specification and length of the plate tooling, specifically: Figure 5 As shown, when the operator loosens the fastening bolt 3022, the block base 3023 together with the block limiting plate 3024 (the fastening bolt 3022 does not separate from the block limiting plate 3024) can move along the beam slide 3011 on both sides of the centering beam 301; when the position of the block base 3023 is determined, the operator retightens the fastening bolt 3022 so that the block limiting plate 3024 and the limiting protrusions 30234 on both sides of the block base 3023 re-clamp the beam slide 3011 on both sides to achieve fixation.

[0032] The block assembly 302 of the present invention can also be replaced with a block body 3021 of different specifications and shapes according to actual needs, as shown in FIG. Figure 6 As shown, the positioning block 30213 at the lower end of the block body 3021 is inserted into the slot 30232 on the block base 3023, and the mounting side plates 30211 on both sides of the block body 3021 are fixed in the grooves of the block base 3023 by mounting bolts. After removing the two mounting bolts, the operator can pull out the block body 3021 for replacement.

[0033] In addition, the present invention is designed and modified for the shuttle car. Compared with the existing technology, the present invention only needs to process positioning holes on various plate tooling used for the shuttle car, which is convenient for modifying the existing tooling. In addition, the position of the block assembly 302 can be adjusted and the block body 3021 can be replaced. In this way, it can be ensured that no matter what specifications of the plate tooling can be positioned in conjunction with the present invention, thereby ensuring the accurate position of the plate during the shuttle car transmission and loading.

Claims

1. A shuttle vehicle for laser welding of automobile plates, characterized by: The invention comprises a vehicle body (1), wherein a lifting drive assembly (3) is arranged inside the vehicle body (1), a centering beam (301) is arranged at the upper end of the lifting drive assembly (3), and a stopper assembly (302) is arranged on the centering beam (301), wherein the stopper assembly (302) comprises a stopper body (3021), a stopper base (3023) and a stopper limit plate (3024), wherein beam slideways (3011) are arranged on both sides of the upper end of the centering beam (301). ), limiting protrusions (30234) are provided on both sides of the block base (3023), the block base (3023) is fixedly connected to the block limiting plate (3024) on the lower side by fastening bolts (3022), and the limiting protrusions (30234) and the corresponding ends of the block limiting plate (3024) cooperate to clamp the beam slideway (3011) on the corresponding side, and the block body (3021) is detachably arranged on the block base (3023).

2. The automobile sheet laser welding feeding shuttle according to claim 1 is characterized in that: The block body (3021) is provided with mounting side plates (30211) on both sides, and the mounting side plates (30211) are provided with a first mounting hole (30212); the lower end of the block body (3021) is provided with a positioning plug (30213); a groove is formed in the middle of the block base (3023), and a slot (30232) and a second mounting hole (30233) are provided at the bottom of the groove; the positioning plug (30213) at the lower end of the block body (3021) is inserted into the slot (30232) on the block base (3023); the mounting side plates (30211) on both sides of the block body (3021) are fixed to the groove of the block base (3023) by mounting bolts, and the mounting bolts pass through the first mounting hole (30212) and the second mounting hole (30233) on the corresponding side in sequence.

3. The automobile sheet laser welding feeding shuttle according to claim 2 is characterized in that: Both ends of the stopper base (3023) are provided with connection holes (30231) for the fastening bolts (3022) to pass through, and two connection holes (30231) are respectively arranged on both sides of the groove.

4. The automobile sheet laser welding feeding shuttle according to claim 1 is characterized in that: The crossbeam slideway (3011) is fixed to the centering crossbeam (301) 1 via slideway fixing bolts (3012).

5. The automobile sheet laser welding feeding shuttle according to claim 1 is characterized in that: The lifting drive assembly comprises a double-output shaft motor (305), a transmission shaft (304), a transmission box and a lifting drive shaft (303), wherein the output shafts on both sides of the double-output shaft motor (305) are respectively connected to the transmission shaft (304) on the corresponding side, and the transmission box is provided with a first bevel gear and a second bevel gear that mesh with each other and whose axes are at right angles, wherein the first bevel gear is sleeved on the transmission shaft (304) on the corresponding side, and a nut is provided inside the second bevel gear, and a screw section is provided on the lifting drive shaft (303), and the nut is sleeved on the screw section corresponding to the lifting drive shaft (303).

6. The automobile sheet laser welding feeding shuttle according to claim 5 is characterized in that: A plurality of auxiliary support shafts (306) are arranged inside the vehicle body (1).

7. The automobile sheet laser welding feeding shuttle according to claim 1, characterized in that: The vehicle body (1) is mounted on a base frame (2), wherein both sides of the base frame (2) are provided with slide rails (202), both sides of the vehicle body (1) are provided with sliders that cooperate with the slide rails (202) on the corresponding sides, either side of the base frame (2) is provided with a rack (201), a gear and a travel motor are provided inside the vehicle body (1), and the gear cooperates with the rack (201) and is driven to rotate by the travel motor.

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