Elevator car bottom welding equipment

Abstract

The utility model discloses elevator car bottom welding equipment, and relates to the technical field of elevator production. The elevator car bottom welding equipment comprises a rack, a clamp tool, a welding seam recognition mechanism and a welding mechanism, and the clamp tool is movably arranged on the rack and used for clamping and limiting a bottom plate and a profile to be welded; the welding seam recognition mechanism is used for detecting a welding seam gap between the upper bottom plate of the clamp tool and the profile; and the welding mechanism can move relative to the rack, is electrically connected with the welding seam recognition mechanism and is used for carrying out welding operation according to the welding seam gap. According to the technical scheme, automatic welding operation of the bottom plate and the section bar of the elevator car bottom can be achieved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator manufacturing technology, and in particular to an elevator car bottom welding device. Background Technology

[0002] In related technologies, the car bottom of freight elevators is a large structural component welded from sheet metal and profiles. Its structural types and dimensions vary, and it is mainly produced according to the customer's site customization. The processing errors before welding are relatively large, resulting in some welds being small and others being large. Some welds may exceed the limits of automatic welding. During the welding process, manual welding is usually used, resulting in low production efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose an elevator car bottom welding device, which aims to achieve automated welding and improve production efficiency.

[0004] To achieve the above objectives, the elevator car bottom welding equipment proposed in this utility model includes:

[0005] frame;

[0006] The fixture is movably mounted on the frame and is used to clamp and limit the base plate and profile to be welded;

[0007] A weld seam identification mechanism is used to detect the weld seam gap between the base plate and the profile of the fixture; and

[0008] The welding mechanism is movable relative to the frame and electrically connected to the weld seam recognition mechanism for performing welding operations based on the weld seam gap.

[0009] In one embodiment of this application, the weld seam identification mechanism is a line laser scanning mechanism.

[0010] In one embodiment of this application, the welding mechanism includes a robotic arm disposed on the side of the frame and a welding torch disposed on the robotic arm, and the line laser scanning mechanism is mounted on the welding torch.

[0011] In one embodiment of this application, the welding mechanism includes two robotic arms and two welding torches. The two robotic arms drive the two welding torches to move from the middle of the fixture tooling along the length direction to both sides for welding.

[0012] In one embodiment of this application, the fixture includes:

[0013] Mounting plate, provided on the frame; and

[0014] Two limiting assemblies are arranged on opposite sides of the mounting plate, and a clamping station is formed between the two limiting assemblies. At least one of the limiting assemblies is in sliding fit with the mounting plate, and is used for adjusting the size of the clamping station.

[0015] In an embodiment of the present application, the limiting assembly comprises:

[0016] A support seat is arranged on the mounting plate, and is used for supporting the bottom plate to be welded.

[0017] A first limiting member is arranged on the support seat and located at one end of the clamping station in the length direction.

[0018] Two second limiting members are arranged on the support seat and respectively located at two ends of the clamping station in the width direction. At least one of the second limiting members is in sliding fit with the support seat, and is used for moving close to or away from the other second limiting member.

[0019] In an embodiment of the present application, the first limiting member in one of the limiting assemblies is a stop block fixed on the support seat, and the first limiting member in the other limiting assembly is a push block movable in the length direction.

[0020] In the same limiting assembly, one of the second limiting members is a stop block fixed on the support seat, and the other second limiting member is a push block movable in the width direction.

[0021] In an embodiment of the present application, a support assembly is arranged on the mounting plate, and is located below the clamping station, and is used for supporting the bottom of the bottom plate to be welded.

[0022] In an embodiment of the present application, the support assembly comprises:

[0023] A bottom support is fixedly arranged on the mounting plate, and an upper surface of the bottom support is used for supporting the bottom of the bottom plate to be welded.

[0024] A plurality of ball structures comprise a lifting member arranged on the bottom support and a plurality of balls arranged on the top of the lifting member. The lifting member is used for driving the balls to move up and down, so as to extend or retract the upper surface of the bottom support.

[0025] In an embodiment of the present application, a pressing mechanism is arranged on the rack, and the pressing mechanism is electrically connected with the welding mechanism.

[0026] The pressing mechanism comprises:

[0027] A support frame is arranged in sliding fit on the rack.

[0028] A pressing plate is arranged on the support frame and above the clamping station.

[0029] A pressing plate driving member is arranged on the support frame and drivingly connected with the pressing plate, for driving the pressing plate to move up and down to press or release the bottom plate and the profile to be welded.

[0030] In an embodiment of the present application, the support frame is a gantry frame arranged across the two sides of the clamp tooling;

[0031] The pressing mechanism is provided with two, and the two pressing mechanisms are respectively moved along the length direction of the clamping station.

[0032] In the elevator car bottom welding equipment, after the clamp tooling moves the bottom plate and the profile to be welded to the welding position, the weld seam identification mechanism automatically identifies and detects the weld seam gap between the bottom plate and the profile on the clamp tooling, compares the detected weld seam gap with the preset automatic welding gap limit value, plans the first welding area when the detected weld seam gap is within the automatic welding gap limit value, records the second welding area that needs to be skipped for subsequent repair welding when the detected weld seam gap is greater than the automatic welding gap limit value, and transmits the signal to the welding mechanism, so that the welding mechanism can automatically weld the first welding area and automatically skip the second welding area according to the weld seam gap between the bottom plate and the profile. Thus, the automatic welding operation of the bottom plate and the profile of the elevator car bottom is realized, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0034] Figure 1 It is a schematic diagram of an embodiment of the elevator car bottom welding equipment of the present application;

[0035] Figure 2 It is a schematic diagram of the cooperation structure of the clamp tooling and the supporting assembly in the embodiment of the present application;

[0036] Figure 3 It is Figure 2 It is a side view of the embodiment;

[0037] Figure 4 It is a schematic diagram of the cooperation structure of the clamp tooling, the supporting assembly and the pressing mechanism in the embodiment of the present application;

[0038] Figure 5 Figure 2 is a schematic view of a cooperation structure of the fixture tool, the supporting assembly and the pressing mechanism in the embodiment of the utility model for limiting the bottom plate and the sectional material;

[0039] Figure 6 For Figure 5 Figure 2 is a schematic view of a cooperation structure of the fixture tool, the supporting assembly and the pressing mechanism in the embodiment of the utility model for limiting the bottom plate and the sectional material;

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041]

[0042]

[0043] The implementation, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0045] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0046] Meanwhile, "and / or" or "and / or" appearing throughout the text means that three schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0047] In addition, if the embodiments of the utility model involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0048] The utility model provides a kind of elevator car bottom welding equipment, to realize the automatic welding of bottom plate 71 and section bar 72, improve production efficiency.

[0049] In the utility model embodiment, as shown in Figures 1 to 4 The elevator car bottom welding equipment includes rack 1, clamp tool 2, weld seam identification mechanism 5 and welding mechanism 6.

[0050] Clamp tool 2 is movably arranged on rack 1, for clamping and limiting the bottom plate 71 and section bar 72 to be welded; weld seam identification mechanism 5 is used for detecting the weld seam gap between the bottom plate 71 and section bar 72 on clamp tool 2; welding mechanism 6 is movable relative to rack 1, and is electrically connected with weld seam identification mechanism 5, for welding according to the weld seam gap.

[0051] Rack 1 plays a role of supporting components in welding equipment, such as clamp tool 2, supporting assembly 3, pressing mechanism 4 and other components. Clamp tool 2 is movably arranged on rack 1. It can be understood that clamp tool 2 can move between loading position and welding position of rack 1, for installing bottom plate 71 and section bar 72 to be welded at loading position, and moving to welding position for subsequent weld seam identification and welding operation after clamping and positioning. Optionally, clamp tool 2 is slidingly connected with rack 1, and can be driven to move by motor or cylinder. It should be noted that the specific structure of clamp tool 2 can be determined according to actual situation, as long as it can clamp and fix bottom plate 71 and section bar 72, which is not limited here.

[0052] The weld seam recognition mechanism 5 plays a role in recognizing the weld seam gap between the bottom plate 71 and the profile 72 on the detection clamp tool 2, and can judge whether the detected weld seam gap exceeds the preset automatic welding gap limit value. When the detected weld seam gap does not exceed the preset automatic welding gap limit value, it means that the area can be directly automatically welded; when the weld seam gap exceeds the preset automatic welding gap limit value, a signal can be given to the welding mechanism 6 to skip the welding area, so as to perform automatic welding operation on other areas that do not exceed the automatic welding gap limit value. For the sake of description, the area where the weld seam gap does not exceed the preset automatic welding gap limit value is referred to as the first welding area, and the area where the weld seam gap exceeds the preset automatic welding gap limit value is referred to as the second welding area. It can be understood that, before the welding operation, the weld seam gap is detected and recognized by the weld seam recognition mechanism 5 to identify the first welding area and the second welding area, and the second welding area is marked as an area that is automatically skipped and not subjected to automatic welding, so as to realize planning of the automatic welding route. It can be understood that the second welding area can be completed by subsequent worker repair welding operation. In actual application, the specific structure of the weld seam recognition mechanism 5 can be determined according to actual conditions, for example, it can be a line laser scanning mechanism, an ultrasonic detection mechanism, a ray detection mechanism or some other type of weld seam recognition mechanism 5. In the embodiment, considering factors such as cost and structure layout, the weld seam recognition mechanism 5 selects a line laser scanning mechanism.

[0053] The welding mechanism 6 is movable relative to the rack 1, and is used for welding operation on the bottom plate 71 and the profile 72. The welding mechanism 6 is electrically connected with the weld seam recognition mechanism 5. It can be understood that the welding mechanism 6 can automatically weld according to the weld seam gap condition of the bottom plate 71 and the profile 72 recognized by the weld seam recognition mechanism 5, and automatically skips in the second welding area. Alternatively, the welding mechanism 6 can be movable on the rack 1 or can be a structure independent of the rack 1. When it is directly movable on the rack 1, a movable mechanism can be movably arranged on the rack 1, and the welding gun 62 is directly arranged on the movable mechanism; when it is independent of the rack 1, a mechanical arm 61 can be used to drive the welding gun 62 to move. The specific structure of the welding mechanism 6 is not limited here.

[0054] In summary, in the elevator car bottom welding equipment, after the clamping tool 2 moves the bottom plate 71 and the profile 72 to be welded to the welding position, the weld seam identification mechanism 5 can automatically identify and detect the weld seam gap between the bottom plate 71 and the profile 72 on the clamping tool 2, and compare the detected weld seam gap with the preset automatic welding gap limit value. When the detected weld seam gap is within the automatic welding gap limit value, it is planned as a first welding area. When the detected weld seam gap is greater than the automatic welding gap limit value, it is recorded as a second welding area that needs to be skipped for subsequent repair welding, and the signal is transmitted to the welding mechanism 6, so that the welding mechanism 6 can automatically weld the first welding area and automatically skip the second welding area according to the weld seam gap between the bottom plate 71 and the profile 72. In this way, the automatic welding operation of the bottom plate 71 and the profile 72 of the elevator car bottom is realized, and the production efficiency is improved.

[0055] In an embodiment of the present application, as Figure 1 The welding mechanism 6 includes a mechanical arm 61 arranged on the side of the rack 1 and a welding gun 62 arranged on the mechanical arm 61. The line laser scanning mechanism is installed on the welding gun 62 and electrically connected with the welding gun 62.

[0056] In this embodiment, the welding mechanism 6 is independent of the rack 1, and the welding gun 62 is moved through the mechanical arm 61 on the side of the rack 1. Compared with the way of directly arranging a moving mechanism on the rack 1, the flexibility of the mechanical arm 61 is higher, and the moving range and angle of the welding gun 62 are wider, which can adapt to more diversified welding requirements. By installing the line laser scanning mechanism on the welding gun 62, the welding efficiency is greatly improved. In addition, the line laser scanning mechanism can monitor the welding area in real time and provide accurate welding position information for the welding gun 62, thereby improving the welding speed and welding quality.

[0057] Further, the welding mechanism 6 includes two mechanical arms 61 and two welding guns 62. The two mechanical arms 61 drive the two welding guns 62 to move along the length direction from the middle of the clamping tool 2 to the two sides for welding.

[0058] By arranging two mechanical arms 61 and two welding guns 62, the two mechanical arms 61 can drive the two welding guns 62 to operate simultaneously during the welding process, thereby effectively improving the welding efficiency and reducing the welding time.

[0059] In addition, the two mechanical arms 61 drive the two welding guns 62 to move along the length direction from the middle of the clamping tool 2 to the two sides for welding, thereby realizing the uniformity and stability of the welding process. Such design can effectively reduce the welding stress and deformation, ensure the consistency of the welding quality, and thus improve the quality of the product.

[0060] In an embodiment of the present application, as Figures 2 to 6The clamp tool 2 comprises a mounting plate 21 and two limiting assemblies 22. The mounting plate 21 is arranged on the rack 1. The two limiting assemblies 22 are arranged on the mounting plate 21 in a spaced manner to form a clamping station. At least one limiting assembly 22 is in sliding fit with the mounting plate 21, and is used to adjust the size of the clamping station.

[0061] The mounting plate 21 is used to support the two limiting assemblies 22. The two limiting assemblies 22 are arranged on the mounting plate 21 in a spaced manner, and form a clamping station for placing the bottom plate 71 and the profiled bar 72. At least one limiting assembly 22 is capable of sliding on the mounting plate 21 to approach or move away from the opposite limiting assembly 22, so as to adjust the size of the clamping station. It can be understood that the clamp tool 2 capable of adjusting the size of the clamping station can be used for different sizes of the bottom plate 71 and the profiled bar 72, so that the situation of frequently replacing the clamp due to the unsuitable size of the bottom plate 71 and the profiled bar 72 is avoided, the production time is greatly reduced, and the production efficiency is improved.

[0062] Alternatively, the mounting plate 21 can be in sliding connection with the rack 1, and can be driven to move by a motor or a pneumatic cylinder.

[0063] Alternatively, only one limiting assembly 22 can be in sliding connection with the mounting plate 21, or both limiting assemblies 22 can be in sliding connection with the mounting plate 21.

[0064] Specifically, as shown in Figures 2 to 6 The limiting assembly 22 comprises a support seat 221, a first limiting piece 222, and two second limiting pieces 223. The support seat 221 is arranged on the mounting plate 21 and is used to support the bottom plate 71 to be welded. The first limiting piece 222 is arranged on the support seat 221 and is located at one end of the clamping station in the length direction. The two second limiting pieces 223 are arranged on the support seat 221 and are respectively located at two ends of the clamping station in the width direction. At least one second limiting piece 223 is in sliding fit with the support seat 221, and is used to approach or move away from the other second limiting piece 223.

[0065] In this embodiment, the support base 221 is mounted on the mounting plate 21, and the upper surface of the support base 221 serves to support the base plate 71 to be welded. Optionally, one of the two support bases 221 can be fixed and the other movable; or both support bases 221 can be movable. In this embodiment, considering factors such as ease of operation and cost, it is preferable that one support base 221 is fixed on the mounting plate 21, and the other support base 221 is slidably fitted onto the mounting plate 21. A first limiting member 222 is provided on the support base 221 at one end of the clamping station in the length direction, so that the first limiting member 222 on the two support bases 221 can realize the limiting and fixing of the base plate 71 and profile 72 in the length direction of the clamping station, and the length dimension of the clamping station can be adjusted by sliding the support base 221 to accommodate base plates 71 and profiles 72 of different lengths. The support base 221 is also provided with second limiting members 223 located at both ends of the clamping station in the width direction, which are used to limit and fix the base plate 71 and profile 72 of the clamping station in the width direction. Specifically, at least one second limiting member 223 is slidably engaged with the support base 221, and can move closer to or further away from the other second limiting member 223 to realize the adjustment of the width dimension of the clamping station to accommodate base plates 71 and profiles 72 with different width dimensions. Thus, it is possible to realize the automated welding function of base plates 71 and profiles 72 with different width dimensions and / or different length dimensions.

[0066] To further improve welding quality, optionally, a limiting component 22 may include two or more first limiting members 222. The two or more first limiting members 222 may be spaced apart on the support base 221 along the width direction, so that the supporting force on the base plate 71 and the profile 72 is more balanced, preventing deformation during welding and improving welding quality.

[0067] As an example, such as Figures 2 to 6 In one limiting assembly 22, the first limiting member 222 is a first stop block 2221 fixed on the support base 221, and in the other limiting assembly 22, the first limiting member 222 is a first push block 2222 movable along the length direction. Optionally, the first push block 2222 can be driven to move by a push cylinder 224.

[0068] As an example, such as Figures 2 to 6 In the same limiting assembly 22, one second limiting member 223 is a second stop block 2231 fixed on the support base 221, and the other second limiting member 223 is a second push block 2232 that can move along the width direction. Optionally, the second push block 2232 can be driven to move by a push cylinder 224.

[0069] To further improve the welding quality between the base plate 71 and the profile 72, such as Figures 2 to 6In an embodiment of the present application, the elevator car bottom welding device further comprises a supporting assembly 3 arranged on the mounting plate 21, which is located below the clamping station and supports the bottom of the bottom plate 71 to be welded.

[0070] It can be understood that the bottom plate 71 of the elevator car bottom and the profile 72 have large sizes, and when they are installed on the clamp tool 2, the parts corresponding to the middle part of the clamping station are in a suspended state and are prone to deformation. Based on this, the supporting assembly 3 is arranged on the mounting plate 21 in the embodiment, which is located below the clamping station and can support the bottom of the bottom plate 71 to be welded, preventing the middle part of the bottom plate 71 from being deformed downward and ensuring the structural reliability of the bottom plate 71 during welding.

[0071] Specifically, as Figures 2 to 6 The supporting assembly 3 comprises a bottom support 31 and a plurality of ball structures 32. The bottom support 31 is fixedly arranged on the mounting plate 21, and the upper surface of the bottom support 31 is used to support the bottom of the bottom plate 71 to be welded. The plurality of ball structures 32 comprise a jacking member arranged on the bottom support 31 and a plurality of balls 322 arranged on the top of the jacking member. The jacking member is used to drive the balls 322 to move up and down to extend or retract the upper surface of the bottom support 31.

[0072] The bottom support 31 is used to support the bottom of the bottom plate 71 to be welded. Optionally, the upper surface of the bottom support 31 can be consistent with the upper surface of the supporting seat 221, which is used to support the bottom plate 71 during welding to prevent the bottom plate 71 from being deformed. It should be noted that in actual application, the bottom plate 71 and the profile 72 may need to be pushed to move by the first limiting member 222 and / or the second limiting member 223 before positioning, and the weight of the bottom plate 71 is too heavy. At this time, the frictional resistance between the bottom plate 71 and the bottom support 31 is large, and the bottom plate 71 cannot be pushed. Based on this, the plurality of ball structures 32 are arranged in the embodiment, and when the position of the bottom plate 71 needs to be adjusted, the jacking member is used to lift the balls 322 to support the bottom plate 71, so as to convert sliding friction into rolling friction, reduce the resistance in the process of pushing the bottom plate 71, and make it more convenient to position the bottom plate 71, thereby improving the positioning efficiency. It can be understood that after the bottom plate 71 is positioned, the jacking member drives the balls 322 to descend, so that the bottom plate 71 is in contact with the bottom support 31, so as to ensure the structural stability during subsequent welding operation.

[0073] Optionally, the jacking member can be a pneumatic cylinder or a motor.

[0074] In order to further improve the welding quality of the bottom plate 71 and the profile 72, as Figures 4 to 6 In an embodiment of the present application, the elevator car bottom welding device further comprises a pressing mechanism 4 arranged on the rack 1, which is electrically connected with the welding mechanism 6.

[0075] The pressing mechanism 4 comprises a support frame 41, a pressing plate 42 and a pressing plate driving member 43. The support frame 41 is slidingly arranged on the rack 1. The pressing plate 42 is arranged on the support frame 41 and located above the clamping station. The pressing plate driving member 43 is arranged on the support frame 41 and drivingly connected with the pressing plate 42, for driving the pressing plate 42 to move up and down to press or release the bottom plate 71 and the profile 72 to be welded.

[0076] In the embodiment, the pressing mechanism 4 is arranged to limit the bottom plate 71 and the profile 72 to be welded in the up-down direction in addition to the length direction and the width direction limited by the clamp tool 2, so that the step of pre-fixing by spot welding in the related art can be omitted, the welding time is shortened, and the production efficiency is effectively improved.

[0077] In actual application, after the clamp tool 2 drives the bottom plate 71 and the profile 72 to be welded to move to the welding position, the support frame 41 can drive the pressing plate 42 and the pressing plate driving member 43 to move to above the clamping station, and drive the pressing plate 42 to move downward to press the bottom plate 71 and the profile 72 to be welded to realize pre-fixing. Then, after the welding mechanism 6 performs dispersed welding on a part, the pressing plate 42 moves upward to release the bottom plate 71 and the profile 72 to be welded, and moves to the two sides of the clamping station, so that the welding mechanism 6 can complete all the remaining repair welding work.

[0078] Optionally, the support frame 41 is a gantry frame arranged across the two sides of the clamp tool 2. Optionally, the pressing plate driving member 43 is a pneumatic cylinder or a motor.

[0079] In order to further improve the welding quality, for example, Figures 4 to 6 In an embodiment, two pressing mechanisms 4 are arranged, and the two pressing mechanisms 4 respectively move along the length direction of the clamping station. In this way, the bottom plate 71 and the profile 72 to be welded can be more balanced in stress, and the two pressing mechanisms 4 can move from the middle of the clamping station to the two sides to prevent interference with the welding work of the welding mechanism 6.

[0080] As an example, the working process of the welding equipment is described as follows:

[0081] The size of the clamping station of the clamp tool 2 is adjusted, the bottom plate 71 is hoisted onto the two support seats 221, the corresponding first limiting member 222 and the second limiting member 223 are driven by the tightening pneumatic cylinder 224 to clamp the bottom plate 71, and the profile 72 is positioned and installed according to the clamp tool 2, so as to realize clamping and positioning of the bottom plate 71 and the profile 72 to be welded.

[0082] The clamp tool 2 drives the bottom plate 71 and the profile 72 to be welded to move to the welding position, and the two pressing mechanisms 4 move to the clamping station to press the bottom plate 71 and the profile 72 to be welded downward to realize pre-fixing.

[0083] The linear laser scanning mechanism scans and identifies the welding gap between the bottom plate 71 and the profile 72 according to the input product parameters, and transmits the welding signal to the welding mechanism 6;

[0084] The two mechanical arms 61 drive the two welding guns 62 to disperse and weld the first welding area from the middle to the length direction of the clamping station, wherein the second welding area with larger gap is skipped;

[0085] The two pressing mechanisms 4 are loosened and moved to the two ends, and the two mechanical arms 61 drive the welding guns 62 to perform the remaining welding operation;

[0086] The clamp tool 2 drives the welded bottom plate 71 and the profile 72 to slide out of the welding position;

[0087] The second welding area is subsequently repaired.

[0088] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, or the contents of the present application are included in the patent protection range of the present application.

Claims

1. An elevator car bottom welding device, characterized in that, include: frame; The fixture is movably mounted on the frame and is used to clamp and limit the base plate and profile to be welded; A weld seam identification mechanism is used to detect the weld seam gap between the base plate and the profile on the fixture. as well as The welding mechanism is movable relative to the frame and electrically connected to the weld seam recognition mechanism for performing welding operations based on the weld seam gap.

2. The elevator car bottom welding equipment as described in claim 1, characterized in that, The weld seam identification mechanism is a line laser scanning mechanism.

3. The elevator car bottom welding equipment as described in claim 2, characterized in that, The welding mechanism includes a robotic arm located on the side of the frame and a welding torch mounted on the robotic arm, with the line laser scanning mechanism mounted on the welding torch.

4. The elevator car bottom welding equipment as described in claim 3, characterized in that, The welding mechanism includes two robotic arms and two welding torches. The two robotic arms drive the two welding torches to move from the middle of the fixture tooling along the length direction to both sides for welding.

5. The elevator car bottom welding equipment as described in any one of claims 1 to 4, characterized in that, The fixture includes: Mounting plate, provided on the frame; and Two limiting components are respectively disposed on opposite sides of the mounting plate, and a clamping station is formed between the two limiting components. At least one of the limiting components is slidably engaged with the mounting plate to adjust the size of the clamping station.

6. The elevator car bottom welding equipment as described in claim 5, characterized in that, The limiting component includes: A support base, provided on the mounting plate, is used to support the base plate to be welded; A first limiting member is disposed on the support base and located at one end of the clamping station along its length; and Two second limiting members are provided on the support base and are respectively located at both ends of the clamping station in the width direction, wherein at least one of the second limiting members is slidably engaged with the support base to move closer to or further away from the other second limiting member.

7. The elevator car bottom welding equipment as described in claim 6, characterized in that, In one of the limiting components, the first limiting member is a stop block fixed on the support base; in the other limiting component, the first limiting member is a push block that can move along the length direction. And / or, in the same limiting assembly, one of the second limiting members is a stop block fixed to the support base, and the other of the second limiting members is a push block movable in the width direction.

8. The elevator car bottom welding equipment as described in claim 5, characterized in that, It also includes a support assembly disposed on the mounting plate, the support assembly being located below the clamping station to support the bottom of the base plate to be welded.

9. The elevator car bottom welding equipment as described in claim 8, characterized in that, The support components include: A bottom bracket, fixedly mounted on the mounting plate, wherein the upper surface of the bottom bracket is used to support the bottom of the base plate to be welded; and A plurality of ball bearing structures, including a lifting member disposed on the bottom support and a ball bearing disposed on the top of the lifting member, wherein the lifting member is used to drive the ball bearing to move up and down to extend or retract the upper surface of the bottom support.

10. The elevator car bottom welding equipment as described in claim 5, characterized in that, It also includes a clamping mechanism disposed on the frame, the clamping mechanism being electrically connected to the welding mechanism; The clamping mechanism includes: The support frame is slidably mounted on the frame; A pressure plate is disposed on the support frame and located above the clamping station; and A pressure plate drive is provided on the support frame and connected to the pressure plate drive, used to drive the pressure plate to move up and down to press or release the base plate and profile to be welded.

11. The elevator car bottom welding equipment as described in claim 10, characterized in that, The support frame is a gantry frame spanning both sides of the fixture tooling; The clamping mechanism is provided in two parts, and the two clamping mechanisms move along the length direction of the clamping station respectively.

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