Clamping control system for framework welding

Abstract

The invention relates to the technical field of welding, in particular to a clamping control system for framework welding, which comprises a fixed base and a plurality of accessory fixing modules, each accessory fixing module comprises a movable base, two end fixing assemblies and at least one auxiliary fixing assembly, the end fixing assemblies are arranged on the fixed base, and the auxiliary fixing assemblies are arranged on the movable base. The auxiliary fixing assembly is arranged on the movable base and used for fixing the middle portion of the framework accessory. The flexibility of the auxiliary fixing assembly for fixing the middle fixing point position of the framework accessory is improved, the two ends of the framework accessory are roughly fixed through the system, then the auxiliary fixing assembly is added to conduct shape correction and accurate fixing on the framework accessory, the number of shape correction times is reduced, and the shape correction operation space is enlarged; and meanwhile, the shape correction area is close to the defect deformation point position, it is guaranteed that the shape of the welded and formed framework is matched with the design shape, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and particularly to a clamping control system for skeleton welding. Background Art

[0002] The automobile seat cushion skeleton is composed of multiple special-shaped metal strip fittings welded end to end in a loop. Before welding, it is necessary to first fix the positions of each special-shaped metal strip fitting in a preset form, and then weld and fix them. The prior art CN107825051A uses grooves to cooperate to position and clamp steel wires. However, in the actual application process, due to the fact that the special-shaped metal strip fittings are extremely vulnerable to environmental influence and deformation during production, transportation, and storage, when fixing them, generally, the fixing points are adjusted and fixed one by one from head to tail in sequence. During this process, it is necessary to manually overcome the deformation to make the fittings fall into the fixed points, resulting in low welding quality and efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a clamping control system for skeleton welding to solve the above-mentioned technical problems existing in the prior art, mainly including the following contents: The present invention discloses a clamping control system for skeleton welding, including a fixed base and a plurality of fitting fixing modules. The fitting fixing module includes a movable base, two end fixing components, and at least one auxiliary fixing component. The end fixing components are arranged on the fixed base and are used to fix the ends of the skeleton fittings. A through hole for the auxiliary fixing component to pass through is arranged on the fixed base. The auxiliary fixing component is arranged on the movable base and is used to fix the middle part of the skeleton fittings. The movable base has a first movement stroke in a first direction. The first movement stroke includes a first state and a second state. The first state is used to avoid the end fixing work of the auxiliary fixing component on the skeleton fittings, and the second state is used to realize the fixing work of the auxiliary fixing component on the middle part of the skeleton fittings. The auxiliary fixing component is located between the two end fixing components.

[0004] The technical solution adopted by the present invention can achieve the following beneficial effects: By increasing the flexibility of the auxiliary fixing component for fixing the middle fixing points of the skeleton fittings, the system first roughly fixes the two ends of the skeleton fittings, and then adds the auxiliary fixing component to correct the shape and accurately fix the skeleton fittings, reducing the number of shape correction times and increasing the shape correction operation space, thereby shortening the welding and fixing time of the skeleton fittings. At the same time, making the shape correction area close to the defective deformation points ensures that the shape of the welded and formed skeleton matches the designed shape, improving the product quality. Brief Description of the Drawings

[0005] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0006] Figure 1 is a schematic structural diagram of the clamping control system of the present invention; Figure 2 is a schematic structural diagram of the seat cushion frame of the present invention; Figure 3 is a schematic structural diagram of the accessory fixing module of the present invention; Figure 4 is a schematic structural diagram of the upper clamp and the lower clamp in the second closed state of the present invention; Figure 5 is a schematic internal structural diagram of the upper clamp and the lower clamp in the second closed state of the present invention; Figure 6 is a schematic structural diagram of the lower clamp in the second closed state of the present invention; Figure 7 is a sectional view of the upper clamp and the lower clamp in the second closed state of the present invention; Figure 8 is a sectional view of the upper clamp and the lower clamp in the first closed state of the present invention; Figure 9 is a schematic structural diagram of the lower clamp of the present invention; Figure 10 is a schematic structural diagram of the upper clamp of the present invention; Figure 11 is a schematic structural diagram of the fixing head of the present invention.

[0007] In the figure: 10. Fixed base; 110. End fixing component; 111. Upper clamp; 1111. First abutting surface; 1112. Second card slot; 1113. Guiding surface; 1114. Avoidance groove; 112. Lower clamp; 1121. First card slot; 1122. Second abutting surface; 1123. Stop bar; 113. Second driving unit; 114. First rod body; 115. Second rod body; 116. Rotating part; 1161. Sliding surface; 1162. Counterweight; 1163. Third abutting surface; 120. Through hole; 20. Movable base; 210. Auxiliary fixing component; 211. Third card slot; 212. Gradual change section; 220. First driving unit; 30. Skeleton accessory. Detailed implementation manners

[0008] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0009] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally indicates that the associated objects before and after are in an "or" relationship.

[0010] For the car seat cushion skeleton, such as Figure 2As shown, since it includes multiple special-shaped metal bar fittings, and the special-shaped metal bar fittings are extremely vulnerable to environmental influence and deform during production, transportation, and storage, it is inevitable to correct the deformation of the special-shaped metal bar fittings during the fixing process before welding. When the prior art fixes the skeleton fittings by welding, to avoid secondary deformation during the welding process, it is generally necessary to fix a skeleton fitting at multiple points. Therefore, before welding, the fixing points are adjusted and fixed one by one from the head to the tail. For example, the end of the left skeleton fitting is first clamped and fixed, and then based on the misalignment distance between the skeleton fitting and the second fixing point caused by its own deformation defect or posture problem, the skeleton fitting is manually adjusted to the second fixing point, and then the manual adjustment and incorporation of the third fixing point are carried out until the right end of the skeleton fitting is clamped and fixed, and then the fixing of a skeleton fitting is completed. This results in low welding efficiency. Moreover, since the deformation of the skeleton fitting is corrected at each fixing point one by one, each deformation correction corresponds to the fixing point, rather than the defective deformation point before the skeleton fitting is fixed. This not only increases the manual form correction workload but also causes the mismatch between the welded skeleton form and the designed form due to the misalignment between the form correction area and the defective deformation point, resulting in a reduction in the quality of the skeleton welding. To solve the technical problems of poor welding quality and low welding efficiency caused by the skeleton fixing work before welding, the present invention provides a clamping control system for skeleton welding. By increasing the flexibility of the auxiliary fixing components for fixing the intermediate fixing points of the skeleton fittings, the system first roughly fixes the two ends of the skeleton fittings, and then adds the auxiliary fixing components to correct the form and accurately fix the skeleton fittings, reducing the number of form corrections and increasing the form correction operation space, thereby shortening the welding and fixing time of the skeleton fittings. At the same time, the form correction area is close to the defective deformation point, ensuring that the welded and formed skeleton form matches the designed form and improving the product quality, as described in the following embodiments.

[0011] Embodiment 1 Some embodiments of the present application provide a clamping control system for skeleton welding, which can be used for welding and forming an automotive seat cushion skeleton, as Figure 1 and Figure 2 shown. The clamping control system includes a fixed base 10 and multiple fitting fixing modules. One fitting fixing module corresponds to at least one skeleton fitting 30, and preferably, the fitting fixing module and the skeleton fitting 30 are in one-to-one correspondence; as Figure 3As shown, the fitting fixing module includes a movable base 20, two end fixing components 110, and at least one auxiliary fixing component 210. The end fixing components 110 are arranged on the fixed base 10, and the end fixing components 110 are used to fix the ends of the skeleton fittings 30. In practical applications, to facilitate the welding of two adjacent skeleton fittings 30, preferably one end fixing component 110 fixes the ends of two adjacent skeleton fittings 30 simultaneously, as shown in Figures 4 to 7 ; In some embodiments, it can also be set that one end fixing component 110 fixes the end of one skeleton fitting 30, allowing the end of the skeleton fitting 30 to be in contact or maintain a preset gap for welding; A through hole 120 for the auxiliary fixing component 210 to pass through is provided on the fixed base 10. The cross-section of the through hole 120 can be a closed or non-closed hole, which is used to avoid the first movement stroke of the movable base 20 in the first direction. The auxiliary fixing component 210 is arranged on the movable base 20, and the auxiliary fixing component 210 is used to fix the middle part of the skeleton fitting 30. The movable base 20 has a first movement stroke in the first direction. Correspondingly, the auxiliary fixing component 210 also has a corresponding reciprocating movement stroke in the first direction. The first movement stroke includes a first state and a second state. The first state is used to avoid the fixing work of the auxiliary fixing component 210 on the end of the skeleton fitting 30. At this time, the auxiliary fixing component 210 is in the retracted position in the first direction, providing sufficient adjustment operation space for the end fixing component 110 to fix the end of the skeleton fitting 30, reducing the interference with the end fixing work, and allowing the end fixing work of the skeleton fitting 30 to have a greater degree of freedom of adjustment. After effectively limiting the space of the two ends of the skeleton fitting 30, at this time, the middle part of the skeleton fitting 30 can be adjusted in shape with reference to the auxiliary fixing component 210, so that the middle part of the skeleton fitting 30 roughly corresponds to the auxiliary fixing component 210. During a single shape correction adjustment process, the shape correction adjustment area is roughly corresponding to the shape defect of the skeleton fitting 30 itself, so as to improve the convenience of end fixing, reduce the number of shape correction times, and at the same time make the shape correction area close to the defect deformation point, ensuring that the shape of the welded skeleton matches the designed shape; The second state is used to realize the fixing work of the auxiliary fixing component 210 on the middle part of the skeleton fitting 30. At this time, the auxiliary fixing component 210 is in the extended position in the first direction. Since the middle part of the skeleton fitting 30 has been roughly aligned with the auxiliary fixing component 210 in advance, the middle part of the skeleton fitting 30 can be fixed after the auxiliary fixing component 210 extends in place along the first direction, accurately realizing the multi-point rapid fixing of the skeleton fitting 30, shortening the fixing time of the skeleton fitting 30, and improving the skeleton welding efficiency. The auxiliary fixing component 210 is located between the two end fixing components 110 along the axial length direction of the skeleton fitting 30.

[0012] It should be noted that the end fixing assembly 110 can adopt existing rigid fixing assemblies (such as flange assemblies, hoop brackets, embedded anchoring fixtures, etc.), elastic fixing assemblies (such as spring clamps, bellows clamps, hydraulically self-tightening fixtures, etc.), adjustable fixing assemblies (such as slide rail brackets, multi-stage threaded locking clamps, modular splicing fixtures, etc.); the auxiliary fixing assembly 210 can adopt existing rigid fixing assemblies (such as flange assemblies, hoop brackets, embedded anchoring fixtures, etc.), elastic fixing assemblies (such as spring clamps, bellows clamps, hydraulically self-tightening fixtures, etc.), adjustable fixing assemblies (such as slide rail brackets, multi-stage threaded locking clamps, modular splicing fixtures, etc.).

[0013] In some embodiments, to achieve clamping and fixing of the end of the skeleton fitting 30, the end fixing assembly 110 can be provided to include an upper fixture 111 and a lower fixture 112. At least one of the upper fixture 111 and the lower fixture 112 has a second moving stroke. In the second moving stroke, the upper fixture 111 and the lower fixture 112 approach or move away from each other to achieve adjustment of the cooperation state between the upper fixture 111 and the lower fixture 112. The cooperation state includes an open state for loading the skeleton fitting 30. In the open state, the end of the skeleton fitting 30 can be loaded onto the upper fixture 111, the lower fixture 112, or between the upper fixture 111 and the lower fixture 112 from a larger loading angle. In this embodiment, it is preferably to load the end of the skeleton fitting 30 onto the lower fixture 112; a first closed state for restricting the skeleton fitting 30 to move in a limited space. As Figure 8 shown, in this state, the two ends of the skeleton fitting 30 can be roughly fixed, and the moving space of the two ends of the skeleton fitting 30 is restricted. So that when the deformation defect of the skeleton fitting 30 itself is relatively small, the deformation defect can be temporarily absorbed by the moving space of the two ends. When the middle part of the skeleton fitting 30 does not require shape correction, it can correspond to the auxiliary fixing assembly 210. After the auxiliary fixing assembly 210 extends out to fix the middle part of the skeleton fitting 30, the first closed state is then converted to the second closed state, and the end fixing assembly 110 fixes the angle of the end of the skeleton fitting 30 to correct the shape defect of the skeleton fitting 30. This can not only reduce the number of times of shape correction of the skeleton fitting 30, but also improve the fixing efficiency of the skeleton fitting 30, and ensure that the shape correction area roughly corresponds to the shape defect of the skeleton fitting 30, improve the forming degree of the welding of the seat cushion skeleton, and improve the product quality; a second closed state for clamping and fixing the skeleton fitting 30. As Figures 4 to 7 shown, at this time, the moving space of the end of the skeleton fitting 30 is relatively reduced compared to the moving space in the first closed state. In some embodiments, at this time, the end of the skeleton fitting 30 is clamped and fixed in place.

[0014] In some embodiments, an end fixing assembly 110 can be provided to clamp and fix the ends of two adjacent skeleton fittings 30, so that the ends of the two adjacent skeleton fittings 30 are in contact or maintain a preset gap, such as Figure 9 and Figure 10 shown. Specifically, the upper clamp 111 can be provided with a first abutting surface 1111, and the first abutting surface 1111 is used to cooperate with the first clamping groove 1121 provided on the lower clamp 112 to clamp and fix the end of a skeleton fitting 30. The upper clamp 111 is further provided with a second clamping groove 1112, and the second clamping groove 1112 is arranged adjacent to the first abutting surface 1111. The second clamping groove 1112 is used to cooperate with the second abutting surface 1122 provided on the lower clamp 112 to clamp and fix the end of another skeleton fitting 30.

[0015] In some embodiments, to facilitate the automatic switching among the open state, the first closed state, and the second closed state, the lower clamp 112 can be provided to include a base body, a rotating member 116, and a reset member. The first clamping groove 1121 and the second abutting surface 1122 are provided on the base body. The rotating member 116 is rotatably connected to the base body, and a third abutting surface 1163 is provided on the rotating member 116. The third abutting surface 1163 is used to cooperate with the second clamping groove 1112 and the second abutting surface 1122 to clamp and fix the end of the skeleton fitting 30. A sliding surface 1161 is provided at the top of the rotating member 116, and the upper clamp 111 is provided with a guiding surface 1113. The guiding surface 1113 cooperates with the sliding surface 1161 to enable the rotating member 116 to rotate from the normal state towards the direction close to the second clamping groove 1112 during the process of the upper clamp 111 and the lower clamp 112 approaching each other, so that the cooperation state changes from the open state to the first closed state and the second closed state in sequence. The reset member is connected to the rotating member 116, and the reset member is used to keep the rotating member 116 in the normal state. In the normal state, an obtuse angle is formed between the rotating member 116 and the base body, and the sliding surface 1161 is on the moving path of the guiding surface 1113. Taking the lower clamp 112 being fixed and the upper clamp 111 being movable as an example, in the initial state, the upper clamp 111 is at the upper limit of the second moving stroke, and the upper clamp 111 and the lower clamp 112 are separated. At this time, it corresponds to the open state, providing a wide loading angle for the skeleton fitting 30 to be loaded into the lower clamp 112. When both ends of the skeleton fitting 30 are on the corresponding lower clamp 112, control the upper clamp 111 to move from the upper limit of the second moving stroke to the lower limit by a preset stroke. At this time, the upper clamp 111 and the lower clamp 112 approach to form a completely closed space or a nearly completely closed space, such as Figure 8As shown, corresponding to the first closed state, the end of the skeleton fitting 30 is restricted and constrained within the fully closed space or near the fully closed space, preferably the fully closed space. At this time, the auxiliary fixing component 210 can be used as a reference to adjust the posture or shape correction of the skeleton fitting 30, so that the middle part of the skeleton fitting 30 corresponds to the auxiliary fixing component 210. Then, the auxiliary fixing component 210 is extended. After the auxiliary fixing component 210 is extended in place, the middle part of the skeleton fitting 30 is clamped and fixed. Then, the upper clamp 111 is controlled to move to the lower limit of the second moving stroke, corresponding to the second closed state, as Figure 7 shown, to achieve multi-point stable fixation of the skeleton fitting 30. The entire fixation process has a large adjustment space, few shape correction times, and the shape correction area roughly corresponds to the defective shape points of the skeleton fitting 30, shortening the skeleton fixation time and effectively improving the skeleton welding efficiency and the skeleton welding forming quality.

[0016] In some embodiments, the guiding surface 1113 can be set as an arc surface to reduce the resistance of the adjustment from the first closed state to the second closed state.

[0017] In some embodiments, the reset member can be set as an elastic body. The two ends of the elastic body are respectively connected to the base body and the rotating member 116, and the elastic member makes the lower clamp 112 automatically in the open state under normal conditions.

[0018] In some embodiments, the reset member can also be set as a counterweight 1162. Along the direction of gravity, the counterweight 1162 is located below the sliding surface 1161, and the rotation point of the rotating member 116 is between the counterweight 1162 and the sliding surface 1161. Along the horizontal direction, the rotation point of the rotating member 116 is between the second abutting surface 1122 and the counterweight 1162. The self-weight of the counterweight 1162 is used to force the rotating member to rotate, so that the lower clamp 112 is automatically in the open state under normal conditions, simplifying the structure of the lower clamp 112.

[0019] In some embodiments, to achieve the stable formation of the first closed state, a stop rod 1123 can be provided on the base body. The first card slot 1121 is between the stop rod 1123 and the second abutting surface 1122. An avoidance slot 1114 corresponding to the stop rod 1123 is provided on the upper clamp 111. The stop rod 1123 is used to cooperate with the first abutting surface 1111, the second card slot 1112, the third abutting surface 1163, the second abutting surface 1122, and the first card slot 1121 to form a limited space in the first closed state, so as to limit the movement space of the end of the skeleton fitting 30 within the limited space.

[0020] In some embodiments, the stop rod 1123 can also be provided on the upper clamp 111, and the avoidance slot 1114 can be provided on the lower clamp 112.

[0021] In some embodiments, to achieve automatic switching between the open state and the first closed state, or between the first closed state and the second closed state, a pressure sensor may be provided on the shift lever 1123 or the guiding surface 1113. The pressure sensor detects the contact pressure signal between the shift lever 1123 and the inner wall of the avoidance groove 1114 at a preset position, or detects the contact pressure signal between the guiding surface 1113 and the sliding surface 1161 at a preset position, and then controls the moving state of the upper fixture 111.

[0022] In some embodiments, to stably clamp and fix the ends of two adjacent skeleton fittings 30, the first abutting surface 1111, the second card slot 1112, the second abutting surface 1122, and the first card slot 1121 may be provided to cooperate to form a closed space or a nearly closed space, preferably a closed space, corresponding to the second closed state, to limit the movement range of the ends of two adjacent skeleton fittings 30, and preferably to restrain the ends of two adjacent skeleton fittings 30 to be fixed in place.

[0023] In some embodiments, the sliding surface 1161 is above the second card slot 1112 in the direction of gravity to ensure stable fixation of the end of the skeleton fitting 30 in the second card slot 1112.

[0024] In some embodiments, to facilitate welding of the ends of two adjacent skeleton fittings 30, the bottom of the first card slot 1121 may be below the second abutting surface 1122 in the direction of gravity, and the bottom of the second card slot 1112 may be above the first abutting surface 1111 in the direction of gravity. In the second closed state, the ends of the two fixed skeleton fittings 30 are in a misaligned state in the direction of gravity. The end of the skeleton fitting 30 at a higher position can play a certain shielding role in the welding process, reducing material spatter during welding and improving the welding quality and the quality of the formed product.

[0025] In some embodiments, the accessory fixing module may be provided to include a first driving unit 220. The output end of the first driving unit 220 is connected to the movable base 20 to enable the movable base 20 to have a first movement stroke in the first direction. Preferably, by operating the first driving unit 220, the movable base 20 is pushed to move up and down in the direction of gravity. When contracting downward, the auxiliary fixing component 210 on the movable base 20 approaches the first state, and when extending upward, the auxiliary fixing component 210 on the movable base 20 approaches the second state.

[0026] In some embodiments, such as Figures 4 to 6As shown, it can be set that the end fixing component 110 includes a second driving unit 113, and one of the upper clamp 111 and the lower clamp 112 is connected to the output end of the second driving unit 113 to realize the driving control of the second moving stroke. Preferably, the upper clamp 111 is connected to the output end of the second driving unit 113. Specifically, the upper clamp 111 is hinged to the output end of the second driving unit 113 through a first rod 114, and the middle of the first rod 114 is hinged to the movable base 20 through a second rod 115. The second rod 115 is hinged to the middle of the first rod 114. When the second driving unit 113 works, through the cooperation and transmission of the first rod 114 and the second rod 115, the upper clamp 111 swings in an arc to realize the adjustment of the cooperation state between the upper clamp 111 and the lower clamp 112.

[0027] In some embodiments, to reduce the workload of deformation correction, the auxiliary fixing component 210 includes a fixing head, such as Figure 11 As shown, a third card slot 211 is provided on the fixing head. The third card slot 211 includes a tapered section 212 that gradually increases along the opening direction at the opening. When the shape of the skeleton fitting 30 is corrected and adjusted with the auxiliary fixing component 210 as a reference, due to the existence of the tapered section 212, the tolerance for deformation defects during the fixing of the skeleton fitting 30 is increased. That is, even if the skeleton fitting 30 has certain deformation defects, by adjusting the end of the skeleton fitting 30 within the limited space formed by the end fixing component 110, the skeleton fitting 30 can be made to correspond to the opening of the auxiliary fixing component 210 without the need for deformation correction. Then, when the skeleton fitting 30 extends out of the auxiliary fixing component 210 subsequently, the inner wall of the third card slot 211 adaptively corrects and adjusts the shape defects of the skeleton fitting 30 during the extension process, so that the shape of the skeleton fitting 30 matches the designed shape, eliminating the need for active deformation correction work, thereby shortening the time for fixing the skeleton fitting 30 and improving the skeleton welding efficiency.

[0028] In some embodiments, it can be set that the fitting fixing module includes a plurality of auxiliary fixing components 210. At least one of the plurality of auxiliary fixing components 210 has a clamping head corresponding to the fixing head. The clamping head is connected to the output end of the third driving unit, and the clamping head cooperates with the third card slot 211 to realize the clamping and fixing of the middle part of the skeleton fitting 30. It should be noted that the cooperation between the fixing head and the clamping head is a prior art, and specifically, it can be structures such as a clamp, a flange, and a splint, which will not be elaborated here; the first driving unit 220, the second driving unit 113, and the third driving unit are prior arts, and specifically, they can be motors, cylinders, ball screws, hydraulic cylinders, etc., which will not be elaborated here.

[0029] In some embodiments, to improve the degree of automated control of the clamping control system, it may be set that the clamping control system further includes a control module, and the end fixing assembly 110 and the power source of the first moving stroke are respectively connected to the control module. The control module is configured to: in the first state, control the end fixing assembly 110 to perform limited-space movement constraint on the end of the skeleton fitting 30, then control the moving base 20 to enter the second state to fix the middle part of the skeleton fitting 30, and then control the end fixing assembly 110 to clamp and fix the end of the skeleton fitting 30.

[0030] Preferably, the pressure sensor is connected to the control module, and the control module is configured to: based on the detection signal of the pressure sensor, determine the working states of the first driving unit 220, the second driving unit 113, and the third driving unit.

[0031] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0032] In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0033] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. A clamping control system for skeleton welding, characterized in that, It includes a fixed base and multiple accessory fixing modules. The accessory fixing module includes a movable base, two end fixing components, and at least one auxiliary fixing component. The end fixing components are arranged on the fixed base and are used to fix the ends of the skeleton accessories. The fixed base is provided with through holes for the auxiliary fixing components to pass through. The auxiliary fixing components are arranged on the movable base and are used to fix the middle part of the skeleton accessories. The movable base has a first movement stroke in the first direction. The first movement stroke includes a first state and a second state. The first state is used to avoid the fixing work of the auxiliary fixing component on the end of the skeleton accessory, and the second state is used to realize the fixing work of the auxiliary fixing component on the middle part of the skeleton accessory. The auxiliary fixing component is located between the two end fixing components.

2. The clamping control system for skeleton welding according to claim 1, characterized in that, The end fixing component includes an upper clamp and a lower clamp. At least one of the upper clamp and the lower clamp has a second movement stroke to realize the adjustment of the cooperation state between the upper clamp and the lower clamp. The cooperation state includes an open state for loading the skeleton accessory, a first closed state for restricting the skeleton accessory to move in a limited space, and a second closed state for clamping and fixing the skeleton accessory.

3. The clamping control system for skeleton welding according to claim 2, characterized in that, The upper clamp is provided with a first abutting surface, and the first abutting surface is used to cooperate with the first clamping groove arranged on the lower clamp to realize the clamping and fixing of the end of a skeleton accessory. The upper clamp is also provided with a second clamping groove, and the second clamping groove is arranged adjacent to the first abutting surface. The second clamping groove is used to cooperate with the second abutting surface arranged on the lower clamp to realize the clamping and fixing of the end of another skeleton accessory.

4. The clamping control system for skeleton welding according to claim 3, wherein, The lower clamp includes a base body, a rotating member, and a reset member. The first clamping groove and the second abutting surface are arranged on the base body. The rotating member is rotatably connected to the base body. A third abutting surface is arranged on the rotating member, and the third abutting surface is used to cooperate with the second clamping groove and the second abutting surface to realize the clamping and fixing of the end of the skeleton accessory. A sliding surface is arranged at the top of the rotating member. The upper clamp is provided with a guiding surface, and the guiding surface cooperates with the sliding surface to realize that during the process of the upper clamp and the lower clamp approaching each other, the rotating member rotates from the normal state to the direction close to the second clamping groove, so that the cooperation state changes from the open state to the first closed state and the second closed state in sequence. The reset member is connected to the rotating member, and the reset member is used to keep the rotating member in the normal state. In the normal state, an obtuse angle is formed between the rotating member and the base body.

5. The clamping control system for skeleton welding according to claim 4, wherein The reset member is an elastic body, and the two ends of the elastic body are respectively connected to the base body and the rotating member. Or, the reset member is a counterweight. Along the direction of gravity, the counterweight is located below the sliding surface. The rotation point of the rotating member is between the counterweight and the sliding surface. Along the horizontal direction, the rotation point of the rotating member is between the second abutting surface and the counterweight.

6. The clamping control system for skeleton welding according to claim 4, wherein, A stop rod is arranged on the base body. The first clamping groove is located between the stop rod and the second abutting surface. An avoidance groove corresponding to the stop rod is arranged on the upper clamp. The stop rod is used to cooperate with the first abutting surface, the second clamping groove, the third abutting surface, the second abutting surface, and the first clamping groove to form a limited space in the first closed state. And / or, the first abutting surface, the second clamping groove, the second abutting surface and the first clamping groove cooperate to form a second closed state; And / or, the sliding surface is above the second clamping groove along the direction of gravity; And / or, the bottom of the first clamping groove is below the second abutting surface along the direction of gravity, and the bottom of the second clamping groove is above the first abutting surface along the direction of gravity.

7. A clamping control system for skeleton welding according to any one of claims 2 to 6, characterized in that, The accessory fixing module includes a first driving unit, and the output section of the first driving unit is connected to the movable base to enable the movable base to have a first movement stroke in the first direction; And / or, the end fixing assembly includes a second driving unit, and one of the upper clamp and the lower clamp is connected to the output end of the second driving unit to realize the driving control of the second movement stroke.

8. A clamping control system for skeleton welding according to any one of claims 1 to 6, characterized in that, The auxiliary fixing assembly includes a fixing head, and a third clamping groove is provided on the fixing head. The third clamping groove includes a gradually changing section that gradually increases along the opening direction at the opening.

9. The clamping control system for skeleton welding according to claim 8, characterized in that, The accessory fixing module includes a plurality of auxiliary fixing assemblies. At least one of the plurality of auxiliary fixing assemblies has a clamping head corresponding to the fixing head. The clamping head is connected to the output end of the third driving unit, and the clamping head cooperates with the third clamping groove to realize the clamping and fixing of the middle part of the skeleton accessory.

10. A clamping control system for skeleton welding according to any one of claims 1 to 6, characterized in that, The clamping control system further includes a control module. The end fixing assembly and the power source of the first movement stroke are respectively connected to the control module. The control module is configured to: in the first state, control the end fixing assembly to perform limited-space movement constraint on the end of the skeleton accessory, then control the movable base to enter the second state to fix the middle part of the skeleton accessory, and then control the end fixing assembly to clamp and fix the end of the skeleton accessory.

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