Three-dimensional circulating spot welding production line

Abstract

The utility model relates to the technical field of spot welding production lines, in particular to a three-dimensional circulating spot welding production line which comprises a spot welding table, a first material conveying track is arranged on the right side of the spot welding table, a second material conveying track is arranged on the rear side of the spot welding table, and a first mechanical arm is rotationally connected to the top of a spot welding station. And the top of the spot welding station is rotationally connected with a second manipulator. According to the three-dimensional circulating spot welding production line, a first conveying rail conveys a workpiece frame at a constant speed for feeding, the workpiece frame is placed on a cross table through one second manipulator and is adsorbed and fixed through a first micro sucking pump, meanwhile, a speed reduction motor drives the cross table to rotate intermittently, and the workpiece frame is rotated to the first manipulator; the spot welding arm is used for carrying out spot welding treatment on the workpiece frame, after welding is completed, another second mechanical arm adsorbs and fixes the workpiece frame, the workpiece frame is placed into the second conveying rail, and workpiece grooves distributed in the second conveying rail at equal intervals convey the workpiece frame at a constant speed for discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding production lines, in particular to a three-dimensional circulation spot welding production line. Background Art

[0002] Spot welding is a high-speed and economical connection method. It is suitable for manufacturing stamped and rolled thin plate components with a thickness of less than 3mm and can be overlapped, where the joints do not require airtightness. It is a method of welding individual points on the contact surface of the weldment at the joint. Spot welding requires the metal to have good plasticity. It is usually divided into two types of welding methods: double-sided spot welding and single-sided spot welding.

[0003] After searching, a three-dimensional circulation spot welding production line is disclosed in a utility model patent with Chinese patent publication number CN220161492U. The three-dimensional circulation spot welding production line in the utility model patent is to transport the welded workpiece by setting multiple conveying platforms and multiple support rods, thereby reducing the workload of workers in transferring weldments and reducing labor output. However, the three-dimensional circulation spot welding production line only further improves and optimizes the feeding process during workpiece welding, and manual handling is still required during the process of loading and unloading the workpiece, and automatic loading and unloading operation procedures cannot be realized. Therefore, the effect of saving labor needs to be further improved, so a three-dimensional circulation spot welding production line is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a three-dimensional circulation spot welding production line, which has the advantage of convenient automatic loading and unloading, and solves the problem that the three-dimensional circulation spot welding production line in the above background technology requires a certain amount of manual work during the process of loading and unloading workpieces and cannot further save labor.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a three-dimensional circulation spot welding production line, comprising a spot welding table, a spot welding station is fixedly installed on the top of the spot welding table, a turntable seat is arranged inside the spot welding table, a workpiece rack is placed on the top of the turntable seat, and an automatic loading and unloading structure is arranged outside the spot welding table;

[0006] The automatic loading and unloading structure includes a first feed track, a second feed track, a first manipulator, a second manipulator, a cross table, a first micro air pump, a second micro air pump and an adsorption seat. The first feed track is arranged on the right side of the spot welding table, and the second feed track is arranged on the rear side of the spot welding table. The top of the spot welding station is rotatably connected to the first manipulator, the top of the spot welding station is rotatably connected to the second manipulator, the top of the turntable seat is rotatably connected to the cross table, the bottom of the cross table is fixedly installed with the first micro air pump, the top of the second manipulator is fixedly installed with the second micro air pump, and the bottom of the second micro air pump is fixedly connected with the adsorption seat.

[0007] Furthermore, the spot welding table is a U-shaped structure, the number of the spot welding stations is four and is evenly distributed on the top of the spot welding table, the number of the first manipulators is two and is respectively located on the top of two of the spot welding stations, and the two first manipulators both include a first control box and a spot welding arm.

[0008] Furthermore, there are two second manipulators, which are respectively located on the top of the other two spot welding stations. The two second manipulators each include a second control box and a suction arm. The first feed track is located on the right side of one of the second control boxes, and the second feed track is located on the rear side of the other second control box.

[0009] Furthermore, a reduction motor is fixedly installed inside the turntable seat, and the output end of the reduction motor is fixedly connected to the bottom of the cross table, and four tray seats are fixedly connected to the outside of the cross table. There are four first micro-vacuum pumps, and the tops of the four first micro-vacuum pumps are all suction ports. The interiors of the four tray seats are fixedly connected to air duct No. 1, and the four suction ports are respectively connected to the four No. 1 air ducts.

[0010] Furthermore, the number of the workpiece racks is four, the tops of the four tray seats are respectively adsorbed and bonded to the bottoms of the four workpiece racks through No. 1 suction cups, the number of the second micro vacuum pumps and adsorption seats are two each, and No. 2 air ducts are opened inside the two adsorption seats.

[0011] Furthermore, four No. 2 suction cups are fixedly connected to the bottom of the two adsorption seats, and the eight No. 2 suction cups are respectively connected to the two No. 2 air ducts.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The three-dimensional circulation spot welding production line is provided with a first feeding track on the right side of the spot welding table. The workpiece rack to be loaded is uniformly transported by the workpiece slots evenly distributed on the first feeding track. The workpiece rack is fixed by the adsorption seat through the second micro vacuum pump on one of the second manipulators and placed in the tray seat on the cross table. The workpiece rack is fixed by the first micro vacuum pump. At the same time, the reduction motor inside the turntable seat drives the cross table to rotate intermittently, and the workpiece rack is rotated to the first manipulator. The first manipulator drives the spot welding arm to perform spot welding on the workpiece rack. After welding, the second micro vacuum pump on another second manipulator adsorbs and fixes the workpiece rack through the adsorption seat and places it in the second feeding track. The workpiece rack to be unloaded is uniformly transported by the workpiece slots evenly distributed on the second feeding track, thereby realizing the automatic loading and unloading process of the entire spot welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall front view of the structure of the utility model;

[0016] Figure 2 This is a front view of the first part of the structure of the utility model;

[0017] Figure 3 It is a front view of the second part of the structure of the utility model;

[0018] Figure 4 This is a top view of the overall structure of the utility model;

[0019] Figure 5 It is a top view of the structural part of the utility model.

[0020] In the figure: 1. spot welding table; 2. spot welding station; 3. turntable seat; 4. workpiece rack; 5. automatic loading and unloading structure; 501. first feeding track; 502. second feeding track; 503. first manipulator; 5031. first control box; 5032. spot welding arm; 504. second manipulator; 5041. second control box; 5042. suction arm; 505. cross table; 506. first micro vacuum pump; 507. second micro vacuum pump; 508. adsorption seat. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 A three-dimensional circulation spot welding production line includes a spot welding table 1, a spot welding station 2 is fixedly installed on the top of the spot welding table 1, the spot welding station 2 is convenient for installing a first manipulator 503 and a second manipulator 504, the spot welding table 1 and the turntable seat 3 are both controlled by an external PLC automation system, a turntable seat 3 is arranged on the inner side of the spot welding table 1, a workpiece rack 4 is placed on the top of the turntable seat 3, the turntable seat 3 can rotate to adjust the position of the workpiece rack 4, and an automatic loading and unloading structure 5 is arranged on the outside of the spot welding table 1.

[0023] The automatic loading and unloading structure 5 includes a first feeding track 501, a second feeding track 502, a first manipulator 503, a second manipulator 504, a cross table 505, a first micro vacuum pump 506, a second micro vacuum pump 507 and an adsorption seat 508. The first feeding track 501 is arranged on the right side of the spot welding table 1, and the first feeding track 501 is responsible for the workpiece loading process. The second feeding track 502 is arranged on the rear side of the spot welding table 1, and the second feeding track 502 is responsible for the workpiece unloading process. The top of the spot welding station 2 is rotatably connected with the first manipulator 503, and the first control box 5031 of the first manipulator 503 can control the spot welding arm 5032 to complete the process of rotation and tilt swing. The top of the spot welding station 2 is rotatably connected to a second manipulator 504, and a second control box 5041 of the second manipulator 504 can control the suction arm 5042 to complete the process of rotation and tilt swinging. The top of the turntable seat 3 is rotatably connected to a cross table 505, and a first micro vacuum pump 506 is fixedly installed at the bottom of the cross table 505. The first micro vacuum pump 506 can fix the workpiece rack 4 by adsorbing the tray rack on the cross table 505. The top of the second manipulator 504 is fixedly installed with a second micro vacuum pump 507, and the second micro vacuum pump 507 can fix the workpiece rack 4 by adsorbing the adsorption seat 508, and the bottom of the second micro vacuum pump 507 is fixedly connected to the adsorption seat 508.

[0024] When implementing, follow these steps:

[0025] 1) First, the equidistant workpiece slots on the first feeding track 501 feed the workpiece rack 4 at a uniform speed, and a second manipulator 504 absorbs and takes the workpiece rack 4 through the second micro vacuum pump 507 and the adsorption seat 508;

[0026] 2) Then put the taken workpiece rack 4 into the cross table 505 on the turntable seat 3, and use the first micro vacuum pump 506 on the cross table 505 and the tray seat to absorb and fix the workpiece rack 4;

[0027] 3) The reduction motor in the turntable seat 3 drives the cross table 505 to rotate intermittently, and the workpiece rack 4 is rotated and moved to the first manipulator 503, and the workpiece rack 4 is spot welded by the spot welding arm 5032;

[0028] 4) Finally, the cross table 505 continues to rotate and move the workpiece rack 4 to another second manipulator 504, and uses the second micro vacuum pump 507 and the adsorption seat 508 to adsorb and pick up the workpiece rack 4 and put it into the equidistant workpiece slot of the second conveying track 502 to unload and transport the workpiece rack 4.

[0029] according to Figure 1 and Figure 4As shown, the spot welding table 1 is a U-shaped structure, and four spot welding stations 2 are evenly distributed on the four sides of the top of the spot welding table 1, so that the workpiece rack 4 can complete the processes of loading, fixing, spot welding and unloading in sequence. The first manipulator 503 controls the spot welding arm 5032 by the first control box 5031 to complete the rotation and tilt swinging action process.

[0030] according to Figure 2 and Figure 4 As shown, the second manipulator 504 controls the suction arm 5042 by the second control box 5041 to complete the rotation and tilt swinging action process, and the inner sides of the first feed track 501 and the second feed track 502 are provided with equidistantly distributed workpiece grooves, and are respectively close to the two second control boxes 5041, so as to facilitate the loading and unloading of the workpiece rack 4.

[0031] according to Figure 2 and Figure 4 As shown, a reduction motor is fixedly installed inside the turntable seat 3, and the reduction motor intermittently controls the rotation of the cross table 505. Four tray seats are fixed outside the cross table 505. The four tray seats are connected to the tops of four first micro vacuum pumps 506 through the No. 1 air duct. The first micro vacuum pump 506 is used to draw a vacuum on the No. 1 suction cup through the No. 1 air duct, so that the bottom of the workpiece rack 4 is adsorbed and fixed.

[0032] according to Figure 3 and Figure 4 As shown, the two adsorption seats 508 are each provided with a second air duct, and the adsorption seats 508 are connected to the bottoms of the two second micro air pumps 507 through the second air duct.

[0033] according to Figure 3 and Figure 4 As shown, four No. 2 suction cups are fixed at the bottom of each adsorption seat 508, and the No. 2 suction cups are vacuumed by the second micro vacuum pump 507 through the No. 2 air duct, so as to adsorb and fix the top of the workpiece rack 4.

[0034] In summary, the three-dimensional circulation spot welding production line is provided with a first feeding track 501 on the right side of the spot welding table 1, and the workpiece rack 4 to be loaded is uniformly transported by the workpiece slots equidistantly distributed on the first feeding track 501, and the workpiece rack 4 is fixed by the adsorption seat 508 through the second micro vacuum pump 507 on one of the second manipulators 504, and is placed on the tray seat on the cross table 505, and the workpiece rack 4 is fixed by the first micro vacuum pump 506, and at the same time, the reduction motor inside the turntable seat 3 drives the cross table 505 to rotate intermittently, and the workpiece rack 4 is rotated to the first manipulator 503, and the second manipulator 504 is used to fix the workpiece rack 4. A robot 503 drives the spot welding arm 5032 to perform spot welding on the workpiece rack 4. After welding is completed, the second micro vacuum pump 507 on another second robot 504 adsorbs and fixes the workpiece rack 4 through the adsorption seat 508, and puts it into the second conveyor track 502. The workpiece rack 4 to be unloaded is transported at a uniform speed by the equidistantly distributed workpiece slots on the second conveyor track 502, thereby realizing the automatic loading and unloading process of the entire spot welding operation, solving the problem that the three-dimensional circulation spot welding production line in the above-mentioned background technology requires a certain amount of manual workload during the loading and unloading of workpieces, and cannot further save labor.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] 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 three-dimensional cycle spot welding production line, comprising a spot welding station (1), characterized in that: A spot welding station (2) is fixedly installed on the top of the spot welding table (1), a turntable seat (3) is arranged on the inner side of the spot welding table (1), a workpiece rack (4) is placed on the top of the turntable seat (3), and an automatic loading and unloading structure (5) is arranged on the outside of the spot welding table (1); The automatic loading and unloading structure (5) comprises a first material conveying track (501), a second material conveying track (502), a first manipulator (503), a second manipulator (504), a cross table (505), a first micro vacuum pump (506), a second micro vacuum pump (507) and an adsorption seat (508). The first material conveying track (501) is arranged on the right side of the spot welding table (1), the second material conveying track (502) is arranged on the rear side of the spot welding table (1), and the spot welding station (2) is arranged on the right side of the spot welding table (1). The top is rotatably connected to a first manipulator (503), the top of the spot welding station (2) is rotatably connected to a second manipulator (504), the top of the turntable seat (3) is rotatably connected to a cross table (505), the bottom of the cross table (505) is fixedly installed with a first micro vacuum pump (506), the top of the second manipulator (504) is fixedly installed with a second micro vacuum pump (507), and the bottom of the second micro vacuum pump (507) is fixedly connected with an adsorption seat (508).

2. A three-dimensional cycle spot welding production line according to claim 1, characterized in that: The spot welding platform (1) is a U-shaped structure, the number of the spot welding stations (2) is four and they are evenly distributed on the top of the spot welding platform (1), the number of the first manipulators (503) is two and they are respectively located on the top of two of the spot welding stations (2), the two first manipulators (503) each include a first control box (5031) and a spot welding arm (5032), and the inner sides of the first feed track (501) and the second feed track (502) are both provided with workpiece grooves that are evenly distributed.

3. A three-dimensional cycle spot welding production line according to claim 2, characterized in that: There are two second manipulators (504), which are respectively located on the top of the other two spot welding stations (2). The two second manipulators (504) each include a second control box (5041) and a suction arm (5042). The first feed track (501) is located on the right side of one of the second control boxes (5041), and the second feed track (502) is located on the rear side of the other second control box (5041).

4. A three-dimensional cycle spot welding production line according to claim 1, characterized in that: A reduction motor is fixedly installed inside the turntable seat (3), and the output end of the reduction motor is fixedly connected to the bottom of the cross table (505). Four tray seats are fixedly connected to the outside of the cross table (505). There are four first micro vacuum pumps (506), and the tops of the four first micro vacuum pumps (506) are suction ports. The insides of the four tray seats are fixedly connected to the No. 1 air duct, and the four suction ports are respectively connected to the four No. 1 air ducts.

5. A three-dimensional cycle spot welding production line according to claim 4, characterized in that: There are four workpiece racks (4), the tops of the four tray seats are respectively adsorbed and attached to the bottoms of the four workpiece racks (4) through No. 1 suction cups, the number of the second micro vacuum pump (507) and the number of the adsorption seat (508) are both two, and the interiors of the two adsorption seats (508) are each provided with No. 2 air ducts.

6. A three-dimensional cycle spot welding production line according to claim 5, characterized in that: The bottoms of the two adsorption seats (508) are fixedly connected with four No. 2 suction cups, and the eight No. 2 suction cups are respectively connected to the two No. 2 air ducts.

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