Automatic welding device for elevator car base

Abstract

The utility model relates to the technical field of lift car base welding, and discloses an automatic welding device for a lift car base. The rotating equipment is arranged at the upper end of the bottom plate; a car base; the base fixing frame is arranged on the rotating equipment, the rotating equipment drives the base fixing frame to rotate, and the base fixing frame is used for fixing a car base; the supporting structure is arranged at the upper end of the bottom plate and located on the side of the rotating equipment; the moving mechanism is arranged on the supporting structure and horizontally moves left and right; and the welding manipulator is fixed at the end part of the moving mechanism and is used for welding the car base. The automatic welding device can complete automatic welding work of far and near point positions on the car base, so that the welding efficiency is improved, and the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of car base welding, in particular to an automatic welding device for an elevator car base. Background Art

[0002] The elevator car is the box-shaped space used to carry and transport people and materials. It generally consists of a floor, walls, roof, and doors. During the floor production process, a square frame is welded together, and then the base plate is secured to the frame. Traditionally, steel beams are laid on a level surface and then welded together manually. However, this method is time-consuming and labor-intensive, resulting in low production efficiency and inconsistent welding quality due to varying worker commitment and skill levels, making it unsuitable for large-scale industrial production.

[0003] There are also some elevator car base welding equipment in the prior art, such as application number CN202410158480.8, which is a Chinese invention patent named "An Intelligent Welding System for an Elevator Car Bottom Frame". It can realize automatic loading and automatic positioning of the bottom frame, and at the same time realize automatic welding, reducing the labor intensity of workers and improving welding efficiency. However, its welding position is relatively fixed, and there are not enough welding points, so manual supplementary welding is still required.

[0004] Another example is the Chinese invention patent with application number CN202311842341.9, entitled A Multi-station Welding Device for an Elevator Car. Through the coordination of the transmission motor and the transmission screw, and the coordination of the servo motor and the adjustment screw, the joints between the car frame and the car plate can be welded from the inside. The threaded rod is driven by the driving motor to adjust the position of the welding head and weld another joint. It can also weld joints at four positions at the same time, replacing traditional manual welding methods and improving work efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide an automatic welding device for an elevator car base that is different from the existing structure. The device can complete automatic welding work at different points on the car base, thereby improving welding efficiency and ensuring welding quality.

[0006] The utility model is implemented by the following technical solutions: an automatic welding device for an elevator car base, comprising a base plate; a rotating device, the rotating device being arranged at the upper end of the base plate; a car base; a base fixing frame, the base fixing frame being arranged at the rotating device and driven to rotate by the rotating device, and the base fixing frame being used to fix the car base; a supporting structure, the supporting structure being arranged at the upper end of the base plate and located beside the rotating device; a moving mechanism, the moving mechanism being arranged on the supporting structure and moving horizontally left and right; and a welding manipulator, the welding manipulator being fixed at the end of the moving mechanism and being used to weld the car base.

[0007] Furthermore, the support structure includes support columns, which have multiple support columns and are vertically fixed to the upper end of the base plate; a drag chain trough plate, which is fixed to the top of the support column; a support plate, which has two support plates symmetrically fixed on both sides of the drag chain trough plate, and the height of the two support plates is higher than the height of the drag chain trough plate, so that a through groove is formed between the two support plates and the drag chain trough plate; a skateboard, which has two skateboards respectively fixed to the upper end of the support plate; a rack, which is fixed to the inner side of the skateboard, and the rack is located above the side of the through groove between the support plate and the drag chain trough plate; and a slide, which is arranged on the skateboard so that the slide can slide along the bottom end of the skateboard.

[0008] Furthermore, the moving mechanism includes a connecting arm; a motor base, the motor base is fixed on the connecting arm, and the slide is fixed on the bottom end of the motor base; a motor, the motor is vertically fixed on the motor base; a gear, the gear is fixed on the driving end of the motor, and the gear and the rack are transmitted by meshing; and a drag chain, the end of the drag chain is connected to the motor base, and the drag chain and the gear are both located in the through groove between the support plate and the drag chain slot plate.

[0009] Furthermore, a support column base is fixed to the bottom end of each support column, and a plurality of base connecting ears are symmetrically fixed to the outside of the support column base, and the base connecting ears are fixed to the upper end of the base plate by bolts.

[0010] Furthermore, the bottom and top ends of each support column are connected to support column connectors, and the support columns are respectively connected to the support column base and the drag chain slot plate through the support column connectors.

[0011] Compared with the existing technology, the beneficial effect of the present invention is that the present invention is an automatic welding device for an elevator car base, which can complete the automatic welding work of different points near and far on the car base, thereby reducing labor, improving welding efficiency, and ensuring welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 This is a schematic diagram of the connection structure between the support structure and the moving mechanism in the present utility model;

[0015] Figure 4 It is a left view of the supporting structure and the moving mechanism in the utility model.

[0016] In the figure: base plate 1; rotating device 2; base fixing frame 3; car base 4; support structure 5; moving mechanism 6; welding robot 7; support column 51; support column connecting member 511; support column base 52; base connecting ear 521; drag chain slot plate 53; support plate 54; slide plate 55; slide seat 57; rack 58; motor 61; gear 62; motor base 63; connecting arm 64; drag chain 65. DETAILED DESCRIPTION

[0017] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0018] The purpose of the utility model is to provide an automatic welding device for an elevator car base in view of the defects of the prior art.

[0019] Example 1

[0020] This embodiment provides an automatic welding device for an elevator car base. Figure 1 、 Figure 2As shown, it includes a base plate 1, a rotating device 2, a base fixing frame 3, a car base 4, a support structure 5, a moving mechanism 6 and a welding robot 7. The support structure 5 is arranged at the upper end of the base plate 1, located next to the rotating device 2. The moving mechanism 6 is arranged on the support structure 5 and moves horizontally left and right. The welding robot 7 is fixed to the end of the moving mechanism 6 and is used to weld the car base 4. The rotating device 2 is arranged at the upper end of the base plate 1. The rotating device 2 in this embodiment uses a CNC indexing turntable in the prior art, which can accurately rotate to different angles according to control. The base fixing frame 3 is arranged on the rotating device 2 and is driven to rotate by the rotating device 2. The base fixing frame 3 is used to fix the car base 4. The car base 4 to be welded is placed and fixed on the base fixing frame 3. The rotating device 2 drives the entire base 4 to rotate. The welding robot 7 uses the welding gun on the car base 4 to weld the car base 4. The welding robot 7 should have six degrees of freedom. The welding robot 7 in this embodiment uses the CRP-RH18 welding robot in the prior art, which has six degrees of freedom, a maximum load of 20kg, and a repeatability accuracy of up to ±0.08mm. Due to the long size of the car base 4, the welding robot 7 cannot reach the far end. Therefore, the moving mechanism 6 drives the welding robot 7 to move horizontally and linearly. Through the cooperation of the two, the welding robot 7 can complete the welding work at all points.

[0021] Reference Figure 3 、 Figure 4 As shown, the support structure 5 includes support columns 51, a drag chain trough plate 53, a support plate 54, a slide plate 55, a slide seat 57, and a rack 58. There are two support columns 51, which are vertically fixed to the upper end of the base plate 1. Specifically, a support column base 52 is fixed to the bottom end of each support column 51. A plurality of base connecting ears 521 are symmetrically fixed to the outside of the support column base 52. The base connecting ears 521 are fixed to the upper end of the base plate 1 via bolts. The bottom and top ends of each support column 51 are connected to a support column connector 511, and the support column 51 is respectively connected to the support column base 52 and the drag chain trough plate 53 through the support column connector 511. The drag chain slot plate 53 is fixed on the top of the support column 51, and two support plates 54 are symmetrically fixed on both sides of the drag chain slot plate 53. The height of the two support plates 54 is higher than the height of the drag chain slot plate 53, so that a through groove is formed between the two support plates 54 and the drag chain slot plate 53, and two slides 55 are respectively fixed on the upper ends of the support plates 54; the rack 58 is fixed on the inner side of the slide 55, and the rack 58 is located above the side of the through groove between the support plate 54 and the drag chain slot plate 53, and the slide 57 is set on the slide 55 so that the slide 57 can slide along the bottom end of the slide 55.

[0022] Reference Figure 3 、 Figure 4As shown, the moving mechanism 6 includes a motor 61, a gear 62, a motor base 63, a connecting arm 64 and a drag chain 65. The motor base 63 is fixed on the connecting arm 64, the slide 57 is fixed on the bottom end of the motor base 63, and the motor 61 is vertically fixed on the motor base 63. The motor 61 uses a servo motor in the prior art, which can cooperate with the servo drive to achieve precise rotation; the gear 62 is fixed on the driving end of the motor 61, and the gear 62 and the rack 58 are engaged and transmitted; the end of the drag chain 65 is connected to the motor base 63, and the drag chain 65 and the gear 62 are both located in the through groove between the support plate 54 and the drag chain slot plate 53.

[0023] The present invention relates to an automatic welding device for an elevator car base. The car base 4 to be welded is placed and fixed on a base fixing frame 3. At points relatively close to the base fixing frame 3, the car base 4 is welded directly using the welding gun on the welding manipulator 7. During welding, the welding manipulator 7 cooperates with the rotating device 2, and the rotating device 2 drives the base fixing frame 3 to rotate as a whole, completing the welding of all points in the area. After the welding of the area is completed, the motor 61 drives the gear 62 to rotate. The gear 62 is meshed with the rack 58, causing the slide 5 and its upper structure to slide along the slide plate 55 and move a distance. The above operation is then repeated, and the welding manipulator 7 cooperates with the rotating device 2 to complete the welding of all points in the area. The above operation is repeated to complete the welding of all points. The present invention enables the automatic welding device for an elevator car base to complete the welding of points in different areas near and far on the car base 4, reducing labor, improving welding efficiency, and ensuring welding quality.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic welding device for an elevator car base, characterized in that: include Bottom plate (1); A rotating device (2), wherein the rotating device (2) is arranged on the upper end of the base plate (1); Car base (4); A base fixing frame (3), wherein the base fixing frame (3) is arranged on the rotating device (2) and is driven to rotate by the rotating device (2), and the base fixing frame (3) is used to fix the car base (4); A supporting structure (5), wherein the supporting structure (5) is arranged on the upper end of the base plate (1) and is located beside the rotating device (2); A moving mechanism (6), wherein the moving mechanism (6) is arranged on the supporting structure (5) and moves horizontally left and right; as well as A welding manipulator (7) is fixed to the end of the moving mechanism (6) and is used for welding the car base (4).

2. The automatic welding device for an elevator car base according to claim 1, characterized in that: The supporting structure (5) comprises Support columns (51), there are multiple support columns (51), which are vertically fixed to the upper end of the base plate (1); A drag chain slot plate (53), wherein the drag chain slot plate (53) is fixed to the top of the support column (51); Support plates (54), two support plates (54) are symmetrically fixed on both sides of the drag chain slot plate (53), and the height of the two support plates (54) is higher than the height of the drag chain slot plate (53), so that a through groove is formed between the two support plates (54) and the drag chain slot plate (53); Slide plates (55), wherein two slide plates (55) are respectively fixed to the upper ends of the support plates (54); A rack (58), wherein the rack (58) is fixed to the inner side of the slide plate (55), and the rack (58) is located above the side of the through groove between the support plate (54) and the drag chain groove plate (53); and The slide seat (57) is arranged on the slide plate (55) so that the slide seat (57) can slide along the bottom end of the slide plate (55).

3. The automatic welding device for an elevator car base according to claim 2, characterized in that: The moving mechanism (6) includes Connecting arm (64); A motor base (63), wherein the motor base (63) is fixed on the connecting arm (64), and the slide base (57) is fixed on the bottom end of the motor base (63); An electric motor (61), wherein the electric motor (61) is vertically fixed on a motor base (63); A gear (62), wherein the gear (62) is fixed to the driving end of the motor (61), and the gear (62) and the rack (58) are engaged with each other for transmission; and The drag chain (65) has its end connected to the motor seat (63). The drag chain (65) and the gear (62) are both located in the through groove between the support plate (54) and the drag chain slot plate (53).

4. The automatic welding device for an elevator car base according to claim 3, characterized in that: A support column base (52) is fixed to the bottom end of each support column (51), and a plurality of base connecting ears (521) are symmetrically fixed to the outside of the support column base (52), and the base connecting ears (521) are fixed to the upper end of the base plate (1) by bolts.

5. The automatic welding device for an elevator car base according to claim 4, characterized in that: The bottom and top ends of each support column (51) are connected to a support column connector (511), and the support column (51) is respectively connected to the support column base (52) and the drag chain slot plate (53) through the support column connector (511).

Images