Elevator main frame welding clamping device

Abstract

This utility model discloses an elevator main frame welding clamping device, relating to the field of elevator technology. The device includes a mounting platform, a positioning component, and a positioning and correction component. The positioning component includes multiple positioning units spaced apart on the mounting platform. These units collectively define the position of the elevator main frame in a first horizontal direction. At least some of the positioning units are adjustable in the first and / or second horizontal directions, allowing for adjustment of the connecting beam's position and compatibility with elevator main frames of different sizes. The positioning and correction component includes two positioning and correction units arranged opposite each other in the second horizontal direction. These units cooperate with the positioning units to define the horizontal position of the elevator main frame for placement on the side of the side beam. During positioning, the positioning and correction units correct any bending or deformation of the side beam, thus preventing the side beam deformation from affecting the accuracy of the positioning and welding.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator main frame welding clamping device. Background Technology

[0002] Currently, the elevator industry faces the following main problems regarding the welding of elevator mainframes: welding is primarily manual, resulting in low automation, poor product quality consistency, and low efficiency; elevator mainframes vary in specifications and types depending on different operating conditions and products, leading to difficulties in designing compatible welding fixtures; elevator mainframes involve both step-by-step welding and assembly welding, and deformation of components after step-by-step welding complicates the accuracy of assembly welding. Utility Model Content

[0003] The main purpose of this utility model is to propose an elevator main frame welding clamping device, which can realize the clamping and positioning of the elevator main frame and the correction of the parts to be welded in stages, so as to facilitate the assembly and spot welding process.

[0004] To achieve the above objectives, this utility model proposes a welding clamping device for an elevator main frame. The elevator main frame includes two opposing side beams and at least one connecting beam located between the two side beams. The elevator main frame welding clamping device includes:

[0005] Resettlement platform;

[0006] The positioning assembly includes a plurality of positioning units spaced apart on the mounting platform, the plurality of positioning units being used to collectively define the position of the elevator main frame in a first horizontal direction, and at least some of the positioning units being position-adjustable in the first horizontal direction and / or a second horizontal direction; and...

[0007] The positioning and correction assembly includes two positioning and correction units arranged opposite each other in the second horizontal direction. Each positioning and correction unit is used to be disposed on the side of the side beam to limit the position of the elevator main frame in the second horizontal direction and to correct the shape of the side beam.

[0008] In one embodiment, the positioning correction unit includes:

[0009] A support portion is provided on the mounting platform, the support portion being used to contact the inner surface of the side beam and corresponding to the middle part of the side beam;

[0010] Two correction groups are spaced apart along a first horizontal direction. The two correction groups are respectively close to the two ends of the side beam. Each correction group includes a mating part and a correction part arranged opposite to each other in a second horizontal direction. The mating part and the correction part are used to correspond to the inner side and the outer side of the side beam, respectively. Each correction part has a travel distance that moves closer to or away from the corresponding mating part, so as to resist the deformation of the end of the side beam in the direction of the corresponding mating part.

[0011] In one embodiment, the spacing between the two correction groups is adjustable; and / or,

[0012] In each of the correction groups, the correction part and the fitting part are staggered in the first horizontal direction, and each correction part is located on the side of the corresponding fitting part that is away from the support part.

[0013] In one embodiment, the height of the support portion and / or the mating portion is H1, where H1 > 1 / 2H, and H is the height of the side beam; and / or,

[0014] Each of the mating parts is provided with a detection element for detecting the relative position between the end of the side beam and the mating part.

[0015] In one embodiment, the position of the positioning and correction unit is adjustable in the first horizontal direction.

[0016] In one embodiment, the plurality of positioning units includes a first positioning unit, which includes a first positioning part and a first abutting part disposed opposite to each other in a first horizontal direction. The first positioning part and the first abutting part are respectively used to correspond to the two opposite sides of the side beam in the first horizontal direction. The first abutting part can move toward or away from the first positioning part to fix the side beam together with the first positioning part.

[0017] In one embodiment, the placement platform includes a base and a plurality of support platforms disposed on the base, wherein the plurality of support platforms include two first support platforms arranged adjacent to each other along a first direction, and the distance between the two first support platforms is adjustable;

[0018] The first positioning part and the first supporting part are respectively placed on two first bearing platforms;

[0019] The first positioning unit further includes a driving member, which is drivenly connected to the first abutment part to drive the first abutment part to move on the corresponding first support platform.

[0020] In one embodiment, the plurality of positioning units includes at least one second positioning unit, the second positioning unit comprising:

[0021] Two second positioning parts are spaced apart in a second horizontal direction, and the two second positioning parts are arranged opposite to one side of the connecting beam in a first horizontal direction; and,

[0022] The second abutment is located between the two second positioning portions and is disposed opposite to the other side of the connecting beam in the first horizontal direction. The second abutment has a travel distance that moves closer to or further away from the two second positioning portions to drive the connecting beam to move in the first horizontal direction and to fix the connecting beam together with the two second positioning portions.

[0023] In one embodiment, the spacing between two adjacent second positioning units is adjustable.

[0024] In one embodiment, the plurality of positioning units include a first positioning unit, the first positioning unit including a first positioning part and a first abutting part, and each of the positioning correction units includes a support part and two correction groups;

[0025] The placement platform includes a base and multiple support platforms, which are spaced apart on the base. The multiple support platforms include fixed support platforms and multiple movable support platforms.

[0026] The first positioning part, the support part, and one of the correction groups are disposed on the fixed support platform, and the first positioning part and the corresponding correction group are offset in the first horizontal direction;

[0027] The first abutment and the other correction assembly are disposed on the movable support platform adjacent to the fixed support platform.

[0028] In one embodiment, the placement platform is further provided with an adsorption structure, which is used to limit the position of the elevator main frame in the vertical direction.

[0029] In this invention, multiple positioning units jointly define the position of the elevator main frame in the first horizontal direction, and two positioning and correction units jointly define the position of the elevator main frame in the second horizontal direction. This defines the horizontal position of the elevator main frame, ensuring welding stability. By designing at least some of the positioning units with adjustable positions in the first and / or second horizontal directions, the position of the connecting beam can be adjusted, while also ensuring compatibility with elevator main frames of different sizes and specifications. The positioning and correction units not only define the orientation of the elevator main frame but also correct bent or deformed side beams during positioning, thus preventing side beam deformation from affecting the accuracy of positioning and welding. This structural form reduces the precision requirements for parts placement by operators, achieving automated positioning and improving convenience and processing accuracy. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an embodiment of the elevator main frame welding clamping device provided by this utility model;

[0032] Figure 2 for Figure 1 Top view of the welding clamping device for the elevator main frame;

[0033] Figure 3 for Figure 1 A schematic diagram of the mid-positioning correction unit;

[0034] Figure 4 for Figure 1 A schematic diagram of the structure of the first positioning unit;

[0035] Figure 5 for Figure 1 A schematic diagram of the structure of the second positioning unit.

[0036] Explanation of icon numbers:

[0037] 100. Elevator main frame welding clamping device; 1. Installation platform; 11. Base; 12. Support platform; 121. Movable support platform; 121a. First movable support platform; 121b. Second movable support platform; 121c. Third movable support platform; 121d. Fourth movable support platform; 122. Fixed support platform; 2. Positioning assembly; 21a. First positioning unit; 211. First positioning part; 212. First supporting part; 213. Driving component; 21b. Second positioning unit; 214. Second positioning part; 215. Second supporting part; 3. Positioning correction assembly; 31. Positioning correction unit; 311. Support part; 312. Matching part; 313. Correction part; 200. Elevator main frame; 210. Side beam; 220. Connecting beam.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] The main purpose of welding fixtures is to position and fix the workpiece to be welded, so as to ensure that welding can be carried out smoothly. At the same time, it can also avoid the deformation of the workpiece during and after welding. At present, the industry mainly uses three actions of pushing, pulling and pressing to clamp the welding fixture independently and / or in combination. However, most welding fixtures are designed for specific products and specific specifications.

[0043] Currently, the elevator industry faces the following main problems regarding the welding of the main frame:

[0044] Welding is mainly a manual operation with low automation, resulting in poor product quality consistency and low efficiency.

[0045] Elevator main frame has many specifications and types due to different working conditions and products. Therefore, there are difficulties in designing compatible welding fixtures for elevator main frame.

[0046] The elevator main frame involves both step-by-step welding and assembly welding. The components welded in steps may deform after welding, which makes it impossible to guarantee the accuracy of assembly welding.

[0047] Based on the above, this utility model provides an elevator main frame welding clamping device. The positioning unit is compatible with elevator main frames of different sizes and specifications, and the positioning and correction unit can correct the side beams obtained by step welding in the previous process while positioning, thereby ensuring the matching accuracy of each component after the elevator main frame is assembled and positioned.

[0048] Specifically, the elevator main frame 200 includes two opposing side beams 210 and at least one connecting beam 220 located between the two side beams 210. Depending on different specifications and types, the elevator main frame 200 exhibits variations in the number of connecting beams 220 (e.g., 1, 2, 3, etc.), the connection positions of the connecting beams 220 (e.g., the middle or end of the corresponding side beams 210), the length of the side beams 210, and the length of the connecting beams 220 themselves. The elevator main frame is generally composed of channel steel and angle steel spliced ​​and welded together. During the pre-processing of the side beams 210, reinforcing ribs (not shown in the figure) need to be welded inside the side beams 210 to improve their strength. Due to the structural form of the channel steel, the internal reinforcing ribs will undergo bending deformation after welding. This deformation affects assembly accuracy and leads to excessively large gaps in the welded joints, making automated welding impossible.

[0049] Please refer to Figures 1 to 2 The elevator main frame welding clamping device 100 includes a mounting platform 1, a positioning component 2, and a positioning and correction component 3. The positioning component 2 includes multiple positioning units spaced apart on the mounting platform 1. The multiple positioning units are used to jointly limit the position of the elevator main frame 200 in the first horizontal direction. At least some of the positioning units are adjustable in the first horizontal direction and / or in the second horizontal direction. The positioning and correction component 3 includes two positioning and correction units 31 arranged opposite each other in the second horizontal direction. Each positioning and correction unit 31 is used to be positioned on the side of the side beam 210 to limit the position of the elevator main frame 200 in the second horizontal direction and to correct the shape of the side beam 210.

[0050] In this invention, the elevator main frame 200 is assembled from various parts, but since it is not welded, each part is movable. The operator places the assembled parts onto the placement platform 1. Multiple positioning units jointly define the position of the elevator main frame 200 in the first horizontal direction, and two positioning and correction units 31 jointly define the position of the elevator main frame 200 in the second horizontal direction. This ensures the stability of the welding by limiting the horizontal position of the elevator main frame 200. The adjustable design of at least some positioning units in the first and / or second horizontal directions allows for adjustment of the position of the connecting beam 220, while also accommodating elevator main frames 200 of different sizes and specifications. The positioning and correction units 31 not only define the orientation of the elevator main frame 200 but also correct any bending or deformation of the side beam 210 during positioning, thus preventing deformation of the side beam 210 from affecting the accuracy of the positioning weld. This structure reduces the precision requirements for parts placement, achieves automated positioning, and improves convenience and processing accuracy.

[0051] In order to simultaneously realize the positioning and correction functions of the positioning and correction unit 31, in some embodiments, please refer to Figure 3 Each positioning and correction unit 31 includes a support part 311 and two correction groups. The support part 311 is disposed on the placement platform 1 and is used to contact the inner surface of the side beam 210 and corresponds to the middle part of the side beam 210. The two correction groups are spaced apart along the first horizontal direction and are respectively close to the two ends of the side beam 210. Each correction group includes a mating part 312 and a correction part 313 arranged opposite to each other in the second horizontal direction. The mating part 312 and the correction part 313 are respectively used to correspond to the inner and outer sides of the side beam 210. Each correction part 313 has an active stroke that moves closer to or away from the corresponding mating part 312 so as to resist the deformation of the end of the side beam 210 in the direction of the corresponding mating part 312. After the reinforcing ribs of the side beam 210 are welded in the previous process, the deformation trend is that both ends bend outwards. Initially, the two straightening parts 313 are far away from the two mating parts 312, which facilitates the placement of the side beam 210. When it is necessary to fix the elevator main frame 200, the support part 311 corresponds to the middle of the side beam 210 for positioning and support. The two straightening groups use the ends of the side beam 210 as a reference. As the two straightening parts 313 approach the mating parts 312, they abut against the two ends of the side beam 210. Then, under the action of driving force, the two ends of the side beam 210 deform, thereby restoring a relatively vertical state. When the straightening parts 313 press the ends of the side beam 210 against the corresponding mating parts 312, the side beam 210 is fixed. This structural form is more convenient, ensuring both positioning and correction. The straightening group simultaneously performs the functions of correction and clamping, saving the number of parts.

[0052] It should be understood that when the mating part 312 and the supporting part 311 are installed, they should avoid the connecting beam 220 to prevent interference.

[0053] Based on the length of the side beam 210, the distance between the straightening part 313, the mating part 312 and the end face of the side beam 210 is reasonably set.

[0054] Based on the torque during the correction process, the mating part 312 serves as the fulcrum for correction. Therefore, in each correction group, the correction part 313 and the mating part 312 should be staggered in the first horizontal direction. That is, the position where the side beam 210 is subjected to force and the position of the deformation fulcrum are staggered in the first horizontal direction. This achieves better results. Specifically, each correction part 313 is located on the side of the corresponding mating part 312 facing away from the support part 311. That is, the distance between the two correction parts 313 and the corresponding end faces of the side beam 210 is less than the distance between the two mating parts 312 and the corresponding end faces of the side beam 210. This structural form can prevent deformation of the section of the side beam 210 between the mating part 312 and the support part 311 during the correction process.

[0055] Considering the different specifications of the elevator main frame 200, in some embodiments, the distance between the two correction groups is adjustable, so that the correction groups always take the end of the side beam 210 as the position reference and adapt to side beams 210 of different lengths.

[0056] It should be noted that the two correction groups can be placed on the same platform, and the synchronous movement of two parts in one of the correction groups can be achieved by setting a linear drive module. Alternatively, the two correction groups can be placed on two separate platforms, and the distance between the two correction groups can be changed by adjusting the distance between the two platforms. This utility model does not impose any restrictions on this.

[0057] Specifically, the drive of the straightening unit 313 can be achieved by a drive cylinder or by a lead screw structure.

[0058] Regarding the dimensions of the straightening part 313 and the mating part 312, their heights can be set to be the same or different. In some embodiments, the height of the supporting part 311 and / or the mating part 312 is H1, where H1 > 1 / 2H, and H is the height of the side beam 210. That is, the height of the upper end face of the supporting part 311 and / or the mating part 312 needs to exceed the center line of the side beam 210 to ensure the mating effect.

[0059] To facilitate operator monitoring of the straightening process, each mating part 312 is equipped with a detection element to detect the relative position between the end of the side beam 210 and the mating part 312. The detection element can be a pressure sensor or a proximity switch. Its specific working principle is as follows: when the side beam 210 abuts against the support part 311, if the side beam 210 bends, at most one mating part 312 can abut against the side beam 210, meaning at most one detection element can be triggered and emit a signal. As the straightening part 313 moves, when both detection elements are triggered and emit signals, it indicates that the side beam 210 is simultaneously in contact with the support part 311 and both mating parts 312, which can be determined as contact during the straightening positioning process. This allows the drive cylinder of the straightening part 313 to be associated with the detection element, controlling its operation based on the signal from the detection element.

[0060] Please refer to Figure 1 and Figure 4 In some embodiments, the multiple positioning units include a first positioning unit 21a. The first positioning unit 21a includes a first positioning part 211 and a first abutting part 212 disposed opposite to each other in a first horizontal direction. The first positioning part 211 and the first abutting part 212 are respectively used to correspond to the two opposite sides of the side beam 210 in the first horizontal direction. The first abutting part 212 can move towards or away from the first positioning part 211 to fix the side beam 210 together with the first positioning part 211. The first positioning unit 21a corresponds to the positioning of the side beam 210. The first positioning part 211 serves as a positioning reference. The first abutting part 212 can be driven to move by a drive cylinder or a lead screw mechanism, thereby clamping the side beam 210 against the first positioning part 211 or releasing the side beam 210 to facilitate the transport of the elevator main frame 200.

[0061] In this embodiment, two first positioning units 21a are provided, and the two first positioning parts 211 of the two first positioning units 21a should be set at the same level.

[0062] Regarding size limitations, the height of the first positioning part 211 is H2, where H2 > 1 / 2H, and H is the height of the side beam 210. That is, the height of the upper end face of the first positioning part 211 needs to exceed the center line of the side beam 210 to ensure the fit.

[0063] To further expand the activity schedule of the First Resistance Unit 212, please refer to Figure 2 and Figure 4The mounting platform 1 includes a base 11 and multiple support platforms 12 disposed on the base 11. Each support platform 12 includes two first support platforms arranged adjacent to each other along a first direction, with an adjustable distance between them. A first positioning part 211 and a first abutment part 212 are correspondingly disposed on the two first support platforms. The first positioning unit 21a also includes a driving member 213, which is drivenly connected to the first abutment part 212 to drive the first abutment part 212 to move on the corresponding first support platform. The first positioning part 211 and the first abutment part 212 are respectively located on the two first support platforms, and the first abutment part 212 is driven to move linearly on the first support platform by the driving member 213. Therefore, the maximum range of motion of the first abutment part 212 is the sum of the range of motion of the corresponding first support platform and the driving stroke of the driving member 213, enabling a larger range of motion for the first abutment part 212.

[0064] Please refer to Figure 5 The plurality of positioning units include at least one second positioning unit 21b. The second positioning unit 21b includes two second positioning portions 214 and a second abutting portion 215. The two second positioning portions 214 are spaced apart in the second horizontal direction and are used to be positioned opposite to one side of the connecting beam 220 in the first horizontal direction. The second abutting portion 215 is located between the two second positioning portions 214 and is used to be positioned opposite to the other side of the connecting beam 220 in the first horizontal direction. The second abutting portion 215 has a travel distance that moves closer to or away from the two second positioning portions 214 to drive the connecting beam 220 to move in the first horizontal direction and to fix the connecting beam 220 together with the two second positioning portions 214. Since the connecting beam 220 is located between the two side beams 210, the position of the connecting beam 220 in the first horizontal direction needs to be adjusted according to the design position. The connecting beam 220 and the side beams 210 are independent of each other before welding. Therefore, the two second positioning parts 214 and the second abutment part 215 together form a triangular positioning support, which can ensure that the connecting beam 220 will not deflect during the positioning process and improve the positioning effect.

[0065] Furthermore, the position of the positioning and correction unit 31 is adjustable in the first horizontal direction, thereby enabling the connecting beam 220 to move relative to the side beam 210 and achieve precise positioning.

[0066] When multiple connecting beams 220 are provided, multiple second positioning units 21b are provided accordingly, and the distance between two adjacent second positioning units 21b is adjustable.

[0067] To balance the need for size adaptation and structural simplification, please refer to... Figure 2The system comprises multiple positioning units, including a first positioning unit 21a, which includes a first positioning part 211 and a first supporting part 212. Each positioning and correction unit 31 includes a support part 311 and two correction groups. The mounting platform 1 includes a base 11 and multiple support platforms 12, which are spaced apart on the base 11. Each support platform 12 includes a fixed support platform 122 and multiple movable support platforms 121. The first positioning part 211, the support part 311, and one of the correction groups are mounted on the fixed support platform 122, and the first positioning part 211 and the corresponding correction group are staggered in the first horizontal direction. The first supporting part 212 and the other correction group are mounted on the movable support platform 121 adjacent to the fixed support platform 122. This configuration integrates some components of the positioning and correction unit 31 and some components of the first positioning unit 21a, thereby achieving multi-directional positioning and fixing functions for the same side beam 210 without interference. In the above embodiment, the first support platform corresponds to the fixed support platform 122 and the adjacent movable support platform 121.

[0068] Please refer to Figure 2 In this embodiment, the elevator main frame 200 includes two side beams 210 arranged opposite each other along the second horizontal direction, and three connecting beams 220 located between the two side beams 210. Seven support platforms 12 are provided on the base 11. These seven support platforms 12 include one fixed support platform 122, one first movable support platform 121a, three second movable support platforms 121b, one third movable support platform 121c, and one fourth movable support platform 121d. The multiple support platforms 12 are arranged in three rows along the second horizontal direction. The specific structural layout is as follows:

[0069] The first column at the edge includes a fixed support platform 122 and a first movable support platform 121a spaced apart in the first horizontal direction. The fixed support platform 122 is used to house a first positioning part 211, a support part 311 and one of the correction groups. The first positioning part 211 is located on the side of the correction group where the mating part 312 is away from the support part 311. The first movable support platform 121a is used to house a first abutment part 212 and another correction group. The extension directions of the drive cylinder of the correction part 313 and the drive cylinder of the first abutment part 212 are perpendicular. Due to the different number and spacing of the components, the size of the first movable support platform 121a in the first horizontal direction is smaller than that of the fixed support platform 122 in the first horizontal direction. The first movable support platform 121a is mounted by a slide rail arranged in the first horizontal direction, thereby having a movable stroke in the first horizontal direction.

[0070] The second column in the middle includes three second movable support platforms 121b spaced apart in the first horizontal direction. Each second movable support platform 121b is provided with a second positioning unit 21b, and according to the structural space, two of the second positioning units 21b are arranged opposite to each other. The three second movable support platforms 121b are the same size, are all movably mounted on the same slide rail, and have a travel distance along the first horizontal direction.

[0071] The third column at the edge includes a third movable support platform 121c and a fourth movable support platform 121d spaced apart in the first horizontal direction. The third movable support platform 121c and the fixed support platform 122 are arranged opposite each other, and the corresponding positioning components are the same. The fourth movable support platform 121d and the first movable support platform 121a are arranged opposite each other, and the corresponding components are the same. The third movable support platform 121c is installed by a slide rail arranged in the second horizontal direction, so it has a travel distance to move closer to or away from the fixed support platform 122. The fourth movable support platform 121d is installed by two overlapping slide rails in two directions, and can move in both the first and second horizontal directions. Thus, it can be matched with the third movable support platform 121c to match the size of the elevator main frame 200 in the second horizontal direction, and can also be matched with the first movable support platform 121a to match the size of the elevator main frame 200 in the first horizontal direction.

[0072] In addition, an adsorption structure (not shown in the diagram) is provided on the mounting platform 1. This adsorption structure is used to limit the vertical position of the elevator main frame 200. The specific form of the adsorption structure is not limited; it can be magnetically fixed, i.e., an electromagnet is installed on the support platform 12 or base 11, or it can be vacuum adsorption, i.e., adsorption holes are provided on the support platform 12 or base 11, connecting to an external vacuum device. This invention does not limit this. It should be understood that the adsorption structure should include multiple adsorption points, corresponding to different positions of the side beam 210 and the connecting beam 220, to ensure adsorption strength.

[0073] It should be noted that in this embodiment, each positioning part, correction part, support part, and abutment part is a block structure. Depending on the size and shape of the elevator main frame 200, it can also be a plate structure or an irregular structure.

[0074] In this embodiment of the utility model, the elevator main frame 200 welding clamping device 100 can achieve flexible positioning of the elevator main frame 200 through the movable setting of the positioning unit. Through the design of the moving stroke of the relevant parts, the applicable product specifications are: length 600mm~1000mm, width 400mm~100mm. Within this range, it should be able to ensure that the channel steel size, channel steel distance, and angle steel distance can be arbitrarily changed. The cylinder drives the correction part 313 to move, thereby pushing the bent end of the side beam 210 to correct its posture. After positioning, the fitting clearance is guaranteed and the fitting accuracy is improved. At the same time, the fitting part 312 and the first positioning part 211 on the fixed bearing platform 122 serve as positioning references. The entire device applies forces in the X, Y, and Z directions to the elevator main frame 200 to achieve precise positioning of the side beam 210 and the connecting beam 220.

[0075] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A welding clamping device for an elevator main frame, the elevator main frame comprising two opposing side beams and at least one connecting beam located between the two side beams, characterized in that, The elevator main frame welding clamping device includes: Resettlement platform; The positioning assembly includes a plurality of positioning units spaced apart on the mounting platform, the plurality of positioning units being used to collectively define the position of the elevator main frame in a first horizontal direction, and at least some of the positioning units being position-adjustable in the first horizontal direction and / or a second horizontal direction; and... The positioning and correction assembly includes two positioning and correction units arranged opposite each other in the second horizontal direction. Each positioning and correction unit is used to be disposed on the side of the side beam to limit the position of the elevator main frame in the second horizontal direction and to correct the shape of the side beam.

2. The elevator main frame welding clamping device as described in claim 1, characterized in that, The positioning and correction unit includes: A support portion is provided on the mounting platform, the support portion being used to contact the inner surface of the side beam and corresponding to the middle part of the side beam; Two correction groups are spaced apart along a first horizontal direction. The two correction groups are respectively close to the two ends of the side beam. Each correction group includes a mating part and a correction part arranged opposite to each other in a second horizontal direction. The mating part and the correction part are used to correspond to the inner side and the outer side of the side beam, respectively. Each correction part has a travel distance that moves closer to or away from the corresponding mating part, so as to resist the deformation of the end of the side beam in the direction of the corresponding mating part.

3. The elevator main frame welding clamping device as described in claim 2, characterized in that, The distance between the two correction groups is adjustable; and / or, In each of the correction groups, the correction part and the fitting part are staggered in the first horizontal direction, and each correction part is located on the side of the corresponding fitting part that is away from the support part.

4. The elevator main frame welding clamping device as described in claim 2, characterized in that, The height of the supporting part and / or the mating part is H1, where H1 > 1 / 2H, and H is the height of the side beam; and / or Each of the mating parts is provided with a detection element for detecting the relative position between the end of the side beam and the mating part.

5. The elevator main frame welding clamping device as described in any one of claims 1 to 4, characterized in that, The position of the positioning and correction unit is adjustable in the first horizontal direction.

6. The elevator main frame welding clamping device as described in claim 1, characterized in that, The plurality of positioning units include a first positioning unit, which includes a first positioning part and a first abutting part disposed opposite to each other in a first horizontal direction. The first positioning part and the first abutting part are respectively used to correspond to the two opposite sides of the side beam in the first horizontal direction. The first abutting part can move toward or away from the first positioning part to fix the side beam together with the first positioning part.

7. The elevator main frame welding clamping device as described in claim 6, characterized in that, The placement platform includes a base and a plurality of support platforms disposed on the base. The plurality of support platforms include two first support platforms arranged adjacent to each other along a first direction, and the distance between the two first support platforms is adjustable. The first positioning part and the first supporting part are respectively placed on two first bearing platforms; The first positioning unit further includes a driving member, which is drivenly connected to the first abutment part to drive the first abutment part to move on the corresponding first support platform.

8. The elevator main frame welding clamping device as described in claim 6, characterized in that, The plurality of positioning units include at least one second positioning unit, the second positioning unit comprising: Two second positioning parts are spaced apart in a second horizontal direction, and the two second positioning parts are arranged opposite to one side of the connecting beam in a first horizontal direction; and, The second abutment is located between the two second positioning portions and is disposed opposite to the other side of the connecting beam in the first horizontal direction. The second abutment has a travel distance that moves closer to or further away from the two second positioning portions to drive the connecting beam to move in the first horizontal direction and to fix the connecting beam together with the two second positioning portions.

9. The elevator main frame welding clamping device as described in claim 1, characterized in that, The plurality of positioning units include a first positioning unit, the first positioning unit including a first positioning part and a first supporting part, and each of the positioning correction units includes a supporting part and two correction groups; The placement platform includes a base and multiple support platforms, which are spaced apart on the base. The multiple support platforms include fixed support platforms and multiple movable support platforms. The first positioning part, the support part, and one of the correction groups are disposed on the fixed support platform, and the first positioning part and the corresponding correction group are offset in the first horizontal direction; The first abutment and the other correction assembly are disposed on the movable support platform adjacent to the fixed support platform.

10. The elevator main frame welding clamping device as described in claim 1, characterized in that, The placement platform is also equipped with an adsorption structure, which is used to limit the position of the elevator main frame in the vertical direction.

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