A clamping control system for skeleton welding

Abstract

The present invention relates to the field of welding technology, and in particular to a clamping control system for skeleton welding, comprising a fixed base and a plurality of accessory fixing modules, wherein the accessory fixing module comprises a movable base, two end fixing assemblies and at least one auxiliary fixing assembly, wherein the end fixing assemblies are arranged on the fixed base, and the auxiliary fixing assemblies are arranged on the movable base, and the auxiliary fixing assemblies are used to fix the middle part of the skeleton accessories. The present invention increases the flexibility of the auxiliary fixing assemblies for fixing the middle fixing points of the skeleton accessories, allowing the system to roughly fix the two ends of the skeleton accessories first, and then add the auxiliary fixing assemblies to perform morphological correction and precise fixation on the skeleton accessories, thereby reducing the number of morphological corrections and increasing the morphological correction operation space, thereby shortening the welding and fixing time of the skeleton accessories, and at the same time making the morphological correction area close to the defective deformation point, ensuring that the welded skeleton morphology matches the designed morphology, and improving product quality.

Description

Technical Field

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

[0002] The car seat cushion frame is composed of multiple special-shaped metal strip accessories welded end to end into a ring. Before welding, the position of each special-shaped metal strip accessory must be fixed according to a preset shape, and then welded and fixed. The existing technology CN107825051A uses grooves to position and clamp the steel wire. However, in actual application, the special-shaped metal strip accessories themselves are easily deformed by the environment during production, transportation, and storage. Therefore, when fixing them, they are generally adjusted and fixed one by one from the beginning to the end. In this process, it is necessary to manually overcome the deformation to make the accessories 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 technical problems existing in the prior art, which mainly includes the following contents:

[0004] The present invention discloses a clamping control system for skeleton welding, comprising a fixed base and a plurality of accessory fixing modules, wherein the accessory fixing module comprises a movable base, two end fixing assemblies and at least one auxiliary fixing assembly, wherein the end fixing assembly is arranged on the fixed base, and the end fixing assembly is used to fix the end of the skeleton accessory, and the fixed base is provided with a through hole for the auxiliary fixing assembly to pass through, and the auxiliary fixing assembly is arranged on the movable base, and the auxiliary fixing assembly is used to fix the middle part of the skeleton accessory, and the movable base has a first movable stroke in the first direction, and the first movable stroke includes a first state and a second state, the first state is used to realize the avoidance of the auxiliary fixing assembly on the end fixing work of the skeleton accessory, and the second state is used to realize the fixing work of the auxiliary fixing assembly on the middle part of the skeleton accessory, and the auxiliary fixing assembly is located between the two end fixing assemblies.

[0005] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0006] The present invention increases the flexibility of the auxiliary fixing components for fixing the middle fixing points of the skeleton accessories, allowing the system to roughly fix the two ends of the skeleton accessories first, and then add the auxiliary fixing components to correct the shape and accurately fix the skeleton accessories, thereby reducing the number of shape corrections and increasing the shape correction operation space, thereby shortening the welding and fixing time of the skeleton accessories. At the same time, the shape correction area is close to the defective deformation point, ensuring that the welded skeleton shape matches the designed shape, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0008] Figure 1 It is a structural diagram of the clamping control system of the present invention;

[0009] Figure 2 It is a structural schematic diagram of the seat cushion frame of the present invention;

[0010] Figure 3 It is a structural schematic diagram of the accessory fixing module of the present invention;

[0011] Figure 4 2. It is a structural schematic diagram of the upper clamp and the lower clamp of the present invention in the second closed state;

[0012] Figure 5 Schematic diagram of the inner structure of the upper clamp and the lower clamp of the present invention in the second closed state;

[0013] Figure 6 is a structural schematic diagram of the lower clamp of the present invention in a second closed state;

[0014] Figure 7 is a cross-sectional view of the upper clamp and the lower clamp of the present invention in a second closed state;

[0015] Figure 8 is a cross-sectional view of the upper clamp and the lower clamp of the present invention in a first closed state;

[0016] Figure 9 It is a structural schematic diagram of the lower clamp of the present invention;

[0017] Figure 10 It is a structural schematic diagram of the upper clamp of the present invention;

[0018] Figure 11 It is a structural schematic diagram of the fixing head of the present invention.

[0019] In the picture:

[0020] 10. Fixed base; 110. End fixing assembly; 111. Upper clamp; 1111. First abutting surface; 1112. Second slot; 1113. Guide surface; 1114. Avoidance groove; 112. Lower clamp; 1121. First slot; 1122. Second abutting surface; 1123. Stop rod; 113. Second driving unit; 114. First rod body; 115. Second rod body; 116. Rotating member; 1161. Sliding surface; 1162. Counterweight; 1163. Third abutting surface; 120. Through hole; 20. Movable base; 210. Auxiliary fixing assembly; 211. Third slot; 212. Gradient section; 220. First driving unit; 30. Skeleton accessories. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0022] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0023] For car seat frame, such as Figure 2As shown, since it contains multiple special-shaped metal strip accessories, and the special-shaped metal strip accessories themselves are easily deformed by the environment during production, transportation, and storage, it is inevitable to correct the deformation of the special-shaped metal strip accessories during the fixing process before welding them. When the existing technology welds and fixes the skeleton accessories, in order to avoid secondary deformation during the welding process, it is generally necessary to fix a skeleton accessory at multiple points. Therefore, before welding, the fixed points are adjusted and fixed one by one from the beginning to the end. For example, the end of the left skeleton accessory is clamped and fixed first, and then the skeleton accessory is corrected based on its own deformation defects or posture problems. The misaligned spacing between the second fixed points requires manual adjustment of the skeleton accessories to the second fixed point, and then manual adjustment of the third fixed point is performed until the right end of the skeleton accessory is clamped and fixed, completing the fixation of one skeleton accessory, resulting in low welding efficiency. Moreover, since the deformation of the skeleton accessories is corrected at each fixed point, each deformation correction corresponds to the fixed point rather than the defective deformation point before the skeleton accessory is fixed. This will not only increase the workload of manual shape correction, but also cause the mismatch between the welded skeleton shape and the design shape due to the misalignment between the shape correction area and the defective deformation point, resulting in reduced skeleton welding quality. In order 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 middle fixing points of the skeleton accessories, the system first roughly fixes the two ends of the skeleton accessories, and then adds auxiliary fixing components to correct the shape and accurately fix the skeleton accessories, thereby reducing the number of shape corrections and increasing the shape correction operation space, thereby shortening the welding and fixing time of the skeleton accessories. At the same time, the shape correction area is close to the defective deformation point, ensuring that the welded skeleton shape matches the designed shape, thereby improving product quality, as shown in the following embodiments.

[0024] Example 1

[0025] Some embodiments of the present application provide a clamping control system for frame welding, which can be used to weld and form the frame of a car seat cushion, such as Figure 1 and Figure 2 As shown, the clamping control system includes a fixed base 10 and a plurality of accessory fixing modules, one accessory fixing module corresponds to at least one skeleton accessory 30, preferably the accessory fixing module and the skeleton accessory 30 correspond one to one; Figure 3As shown, the accessory fixing module includes a movable base 20, two end fixing assemblies 110 and at least one auxiliary fixing assembly 210. The end fixing assembly 110 is provided on the fixing base 10. The end fixing assembly 110 is used to fix the end of the skeleton accessory 30. In practical applications, in order to facilitate welding of two adjacent skeleton accessories 30, it is preferred that one end fixing assembly 110 fixes the ends of two adjacent skeleton accessories 30 at the same time. Figures 4 to 7 As shown; In some embodiments, it can also be set as an end fixing component 110 to fix the end of a skeleton accessory 30, so that the end of the skeleton accessory 30 touches or maintains a preset gap so as to be welded; The fixed base 10 is provided with a through hole 120 for the auxiliary fixing component 210 to pass through, and the cross section of the through hole 120 can be a closed or non-closed hole, which is used to avoid the first movable stroke of the movable base 20 in the first direction. The auxiliary fixing component 210 is provided on the movable base 20, and the auxiliary fixing component 210 is used to fix the middle part of the skeleton accessory 30, and the movable The movable base 20 has a first movable stroke in the first direction. Correspondingly, the auxiliary fixing assembly 210 also has a corresponding reciprocating movable stroke in the first direction. The first movable stroke includes a first state and a second state. The first state is used to achieve the avoidance of the auxiliary fixing assembly 210 on the end fixing work of the frame accessory 30. At this time, the auxiliary fixing assembly 210 is in a retracted position in the first direction, providing ample adjustment space for the end fixing assembly 110 to fix the end of the frame accessory 30, reducing interference with the end fixing work, and allowing the end fixing work of the frame accessory 30 to have greater freedom of adjustment. After the two ends of the frame accessory 30 are effectively spatially limited, the auxiliary fixing assembly 210 can be used as a reference to perform shape correction adjustment on the middle part of the frame accessory 30, so that the middle part of the frame accessory 30 roughly corresponds to the auxiliary fixing assembly 210. During a single shape correction adjustment process, the shape correction adjustment area is roughly corresponding to the shape defect of the frame accessory 30 itself, thereby improving the convenience of end fixing and reducing the number of shape corrections. At the same time, the shape correction area is close to the defect deformation point, ensuring that the shape of the welded frame matches the designed shape; the second state is used In order to realize the fixing work of the auxiliary fixing component 210 on the middle part of the skeleton accessory 30, the auxiliary fixing component 210 is in an extended position in the first direction. Since the middle part of the skeleton accessory 30 has been roughly aligned with the auxiliary fixing component 210 in advance, the middle part of the skeleton accessory 30 can be fixed after the auxiliary fixing component 210 is extended into place along the first direction, accurately realizing multi-point rapid fixation of the skeleton accessory 30, shortening the fixing time of the skeleton accessory 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 accessory 30.

[0026] It should be noted that the end fixing assembly 110 can adopt existing rigid fixing assemblies (such as flange assemblies, clamp-type brackets, embedded anchor clamps, etc.), elastic fixing assemblies (such as spring clamps, bellows clamps, hydraulic self-tightening clamps, etc.), and adjustable fixing assemblies (such as slide rail brackets, multi-stage threaded locking clamps, modular splicing clamps, etc.); the auxiliary fixing assembly 210 can adopt existing rigid fixing assemblies (such as flange assemblies, clamp-type brackets, embedded anchor clamps, etc.), elastic fixing assemblies (such as spring clamps, bellows clamps, hydraulic self-tightening clamps, etc.), and adjustable fixing assemblies (such as slide rail brackets, multi-stage threaded locking clamps, modular splicing clamps, etc.).

[0027] In some embodiments, in order to achieve clamping and fixing of the end of the skeleton accessory 30, an end fixing assembly 110 can be provided, including an upper clamp 111 and a lower clamp 112, and at least one of the upper clamp 111 and the lower clamp 112 has a second movable stroke. In the second movable stroke, the upper clamp 111 and the lower clamp 112 are closer to or farther away from each other to achieve adjustment of the matching state between the upper clamp 111 and the lower clamp 112, and the matching state includes an open state for loading the skeleton accessory 30. In the open state, the end of the skeleton accessory 30 can be loaded onto the upper clamp 111, the lower clamp 112, or between the upper clamp 111 and the lower clamp 112 from a larger loading angle. In this embodiment, the end of the skeleton accessory 30 is preferably loaded onto the lower clamp 112; a first closed state is used to limit the skeleton accessory 30 to move in a limited space, such as Figure 8 As shown, in this state, the two ends of the frame accessory 30 can be roughly fixed, and the activity space of the two ends of the frame accessory 30 is limited, so that when the deformation defect of the frame accessory 30 itself is small, the activity space of the two ends can be used to temporarily absorb the deformation defect, and the middle part of the frame accessory 30 can correspond to the auxiliary fixing component 210 when no shape correction is required. After the auxiliary fixing component 210 is subsequently extended to fix the middle part of the frame accessory 30, the first closed state is converted to the second closed state, and the end fixing component 110 fixes the end of the frame accessory 30 at an angle to realize the correction of the shape defect of the frame accessory 30, which can reduce the number of shape corrections of the frame accessory 30, improve the fixing efficiency of the frame accessory 30, and ensure that the shape correction area roughly corresponds to the shape defect of the frame accessory 30, thereby improving the degree of achievement of the seat cushion frame welding forming shape and improving product quality; the second closed state for clamping and fixing the frame accessory 30, such as Figures 4 to 7 As shown, the movable space of the end of the skeleton accessory 30 is reduced relative to the movable space in the first closed state. In some embodiments, the end of the skeleton accessory 30 is clamped and fixed.

[0028] In some embodiments, an end fixing assembly 110 may be provided to clamp and fix the ends of two adjacent frame parts 30 so that the ends of the two adjacent frame parts 30 touch or maintain a preset gap, such as Figure 9 and Figure 10 As shown, the upper clamp 111 can be specifically provided with a first abutting surface 1111, and the first abutting surface 1111 is used to cooperate with a first card slot 1121 provided on the lower clamp 112 to achieve clamping and fixing the end of a skeleton accessory 30. The upper clamp 111 is also provided with a second card slot 1112, and the second card slot 1112 is adjacent to the first abutting surface 1111, and the second card slot 1112 is used to cooperate with a second abutting surface 1122 provided on the lower clamp 112 to achieve clamping and fixing the end of another skeleton accessory 30.

[0029] In some embodiments, in order to facilitate the automatic switching between the open state, the first closed state and the second closed state, the lower clamp 112 can be provided to include a base, a rotating member 116 and a reset member, the first slot 1121 and the second abutting surface 1122 are provided on the base, the rotating member 116 is rotatably connected to the base, and a third abutting surface 1163 is provided on the rotating member 116, and the third abutting surface 1163 is used to cooperate with the second slot 1112 and the second abutting surface 1122 to achieve clamping and fixing the end of the skeleton accessory 30; the top of the rotating member 116 is provided with a sliding surface 116 1. The upper clamp 111 is provided with a guide surface 1113, and the guide surface 1113 cooperates with the sliding surface 1161 to realize that when the upper clamp 111 and the lower clamp 112 approach each other, the rotating member 116 rotates from the normal state to the direction close to the second slot 1112, so that the cooperation state is transformed 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 make the rotating member 116 in the normal state. In the normal state, the rotating member 116 forms an obtuse angle with the base, and the sliding surface 1161 is on the movable path of the guide surface 1113. The lower clamp 112 is fixed, and the upper clamp 111 can be movable. For example, in the initial state, the upper clamp 111 is at the upper limit of the second movable stroke, and the upper clamp 111 and the lower clamp 112 are separated. At this time, it corresponds to the open state, providing an open loading angle for the skeleton accessory 30 to be installed into the lower clamp 112. When both ends of the skeleton accessory 30 are on the corresponding lower clamp 112, the upper clamp 111 is controlled to move a preset stroke from the upper limit of the second movable stroke to the lower limit. At this time, the upper clamp 111 and the lower clamp 112 are close 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 accessory 30 is restricted and constrained in the completely closed space or a space close to the completely closed space, preferably a completely closed space. At this time, the auxiliary fixing component 210 can be used as a reference to adjust the posture or shape of the skeleton accessory 30, so that the middle part of the skeleton accessory 30 corresponds to the auxiliary fixing component 210, and then the auxiliary fixing component 210 is extended. After the auxiliary fixing component 210 is extended into place, the middle part of the skeleton accessory 30 is clamped and fixed, and then the upper clamp 111 is controlled to move to the lower limit of the second active stroke, corresponding to the second closed state, as shown. Figure 7 As shown, multi-point stable fixation of the skeleton accessories 30 is achieved, the entire fixing process has a large adjustment space, the number of shape corrections is small, and the shape correction area roughly corresponds to the defective shape points of the skeleton accessories 30, shortening the skeleton fixing time and effectively improving the skeleton welding efficiency and skeleton welding forming quality.

[0030] In some embodiments, the guide surface 1113 may be configured as an arcuate surface to reduce resistance in adjusting from the first closed state to the second closed state.

[0031] In some embodiments, the reset member may be an elastic body, with both ends of the elastic body connected to the base and the rotating member 116 respectively, so that the lower clamp 112 is automatically in an open state under normal conditions.

[0032] In some embodiments, the reset member can also be set as a counterweight body 1162. Along the direction of gravity, the counterweight body 1162 is located below the sliding surface 1161, and the rotation point of the rotating member 116 is between the counterweight body 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 body 1162. The weight of the counterweight body 1162 is used to force the rotating member to rotate, so that the lower clamp 112 is automatically in an open state under normal conditions, thereby simplifying the structure of the lower clamp 112.

[0033] In some embodiments, in order to achieve a stable structure of the first closed state, a blocking rod 1123 can be provided on the base, and the first card slot 1121 is located between the blocking rod 1123 and the second abutting surface 1122. The upper clamp 111 is provided with an avoidance groove 1114 corresponding to the blocking rod 1123. The blocking 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 movable space of the end of the skeleton accessory 30 in the limited space.

[0034] In some embodiments, the blocking rod 1123 may be disposed on the upper fixture 111 , and the avoidance groove 1114 may be disposed on the lower fixture 112 .

[0035] In some embodiments, in order to achieve automatic switching from an open state to a first closed state, or from a first closed state to a second closed state, a pressure sensor can be set on the blocking rod 1123 or the guide surface 1113, and the pressure sensor detects the contact pressure signal between the blocking rod 1123 and the inner wall of the avoidance groove 1114 at a preset position, or detects the contact pressure signal between the guide surface 1113 and the sliding surface 1161 at a preset position, and then controls the movement state of the upper clamp 111.

[0036] In some embodiments, in order to achieve stable clamping and fixation of the ends of two adjacent skeleton accessories 30, the first abutting surface 1111, the second slot 1112, the second abutting surface 1122 and the first slot 1121 can be set 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 range of movement of the ends of the two adjacent skeleton accessories 30, preferably to constrain the ends of the two adjacent skeleton accessories 30 to be fixed.

[0037] In some embodiments, the sliding surface 1161 is located above the second slot 1112 along the direction of gravity to ensure that the end of the skeleton accessory 30 in the second slot 1112 is stably fixed.

[0038] In some embodiments, in order to facilitate welding of the ends of two adjacent skeleton accessories 30, the bottom of the first slot 1121 can be set below the second abutting surface 1122 along the direction of gravity, and the bottom of the second slot 1112 can be set above the first abutting surface 1111 along the direction of gravity. In the second closed state, the two fixed ends of the skeleton accessories 30 are in a staggered state in the direction of gravity. The high-positioned ends of the skeleton accessories 30 can play a certain shielding role in the welding process, reduce material splashing during welding, and improve welding quality and molded product quality.

[0039] In some embodiments, an accessory fixing module can be provided including a first drive unit 220, and the output end of the first drive unit 220 is connected to the movable base 20 to enable the movable base 20 to have a first movable stroke in the first direction. Preferably, the first drive unit 220 works to push the movable base 20 to move up and down along the direction of gravity. When it contracts downward, the auxiliary fixing component 210 on the movable base 20 approaches the first state, and when it extends upward, the auxiliary fixing component 210 on the movable base 20 approaches the second state.

[0040] In some embodiments, as Figures 4 to 6As shown, the end fixing assembly 110 can be set to include 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 drive control of the second movable 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 the first rod body 114, and the middle part of the first rod body 114 is hinged to the movable base 20 through the second rod body 115. The second rod body 115 is hinged to the middle part of the first rod body 114, and the second driving unit 113 works. The transmission is coordinated between the first rod body 114 and the second rod body 115 to make the upper clamp 111 swing in an arc to realize the coordination state regulation of the upper clamp 111 and the lower clamp 112.

[0041] In some embodiments, in order to reduce the workload of deformation correction, the auxiliary fixing assembly 210 includes a fixing head, such as Figure 11 As shown, a third slot 211 is provided on the fixing head, and the third slot 211 includes a gradient section 212 provided at the opening and gradually increasing in the direction of the opening. When the skeleton accessory 30 is corrected and adjusted in shape with reference to the auxiliary fixing component 210, due to the existence of the gradient section 212, the tolerance for deformation defects in the fixing process of the skeleton accessory 30 is increased. That is, even if the skeleton accessory 30 has certain deformation defects, by adjusting the end of the skeleton accessory 30 within the limited space formed by the end fixing component 110, the skeleton accessory 30 can be made to correspond to the opening of the auxiliary fixing component 210 when no deformation correction is required. Then, when the auxiliary fixing component 210 is subsequently extended, the inner wall of the third slot 211 adaptively corrects and adjusts the shape defects of the skeleton accessory 30 during the extension process, so that the shape of the skeleton accessory 30 matches the designed shape, eliminating the work of actively correcting the deformation, thereby shortening the time for fixing the skeleton accessory 30 and improving the skeleton welding efficiency.

[0042] In some embodiments, an accessory fixing module may be provided that includes multiple auxiliary fixing assemblies 210. At least one of the multiple auxiliary fixing assemblies 210 includes a clamping head corresponding to the fixing head. The clamping head is connected to the output end of the third drive unit and cooperates with the third clamping slot 211 to achieve clamping and fixing of the middle portion of the skeleton accessory 30. It should be noted that the coordination between the fixing head and the clamping head is conventional, and specifically can be a clamp, flange, splint, etc., and is not described in detail here. The first drive unit 220, the second drive unit 113, and the third drive unit are conventional, and specifically can be a motor, a cylinder, a ball screw, a hydraulic cylinder, etc., and are not described in detail here.

[0043] In some embodiments, in order to improve the degree of automation control of the clamping control system, the clamping control system can be set to also include a control module, and the end fixing component 110 and the power source of the first movable stroke are respectively connected to the control module, and the control module is configured to: in the first state, control the end fixing component 110 to perform limited space movement constraints on the end of the skeleton accessory 30, and then control the movable base 20 to enter the second state to fix the middle part of the skeleton accessory 30, and then control the end fixing component 110 to clamp and fix the end of the skeleton accessory 30.

[0044] Preferably, the pressure sensor is connected to a control module, and the control module is configured to determine the working states of the first driving unit 220 , the second driving unit 113 and the third driving unit based on a detection signal of the pressure sensor.

[0045] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0046] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0047] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A clamping control system for skeleton welding, characterized in that: The invention relates to a frame fixing module and a plurality of accessory fixing modules, wherein the accessory fixing module comprises a movable base, two end fixing assemblies and at least one auxiliary fixing assembly, wherein the end fixing assembly is arranged on the fixed base, and the end fixing assembly is used to fix the end of the frame accessory, the fixed base is provided with a through hole for the auxiliary fixing assembly to pass through, the auxiliary fixing assembly is arranged on the movable base, and the auxiliary fixing assembly is used to fix the middle part of the frame accessory, the movable base has a first movable stroke in the first direction, the first movable stroke comprises a first state and a second state, the first state is used to achieve the avoidance of the auxiliary fixing assembly on the end fixing work of the frame accessory, the second state is used to achieve the fixing work of the auxiliary fixing assembly on the middle part of the frame accessory, and the auxiliary fixing assembly is located between the two end fixing assemblies; the end fixing assembly comprises an upper clamp and a lower clamp, at least one of the upper clamp and the lower clamp has a second movable stroke to achieve the adjustment of the matching state between the upper clamp and the lower clamp, the matching state comprises an open state for loading the frame accessory, a first closed state for limiting the movement of the frame accessory in a limited space, and a second closed state for clamping and fixing the frame accessory.

2. A clamping control system for skeleton welding according to claim 1, characterized in that: The upper clamp is provided with a first abutment surface, which is used to cooperate with a first slot provided on the lower clamp to clamp and fix the end of a skeleton accessory. The upper clamp is also provided with a second slot, which is arranged adjacent to the first abutment surface. The second slot is used to cooperate with a second abutment surface provided on the lower clamp to clamp and fix the end of another skeleton accessory.

3. A clamping control system for skeleton welding according to claim 2, characterized in that: The lower clamp includes a base, a rotating member and a reset member, the first slot and the second abutment surface are provided on the base, the rotating member is rotatably connected to the base, and a third abutment surface is provided on the rotating member, and the third abutment surface is used to cooperate with the second slot and the second abutment surface to achieve clamping and fixing of the end of the skeleton accessory; a sliding surface is provided on the top of the rotating member, and the upper clamp is provided with a guide surface, and the guide surface cooperates with the sliding surface to achieve that when the upper clamp and the lower clamp approach each other, the rotating member rotates from a normal state to a direction close to the second slot, so that the matching state changes from an open state to a first closed state and a 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 a normal state. Under normal conditions, there is an obtuse angle between the rotating member and the base.

4. A clamping control system for skeleton welding according to claim 3, characterized in that: 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; Alternatively, the reset member is a counterweight, which is located below the sliding surface along the direction of gravity, and 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.

5. The clamping control system for skeleton welding according to claim 3, characterized in that: The base is provided with a blocking rod, the first slot is between the blocking rod and the second abutment surface, the upper clamp is provided with an avoidance groove corresponding to the blocking rod, and the blocking rod is used to cooperate with the first abutment surface, the second slot, the third abutment surface, the second abutment surface, and the first slot to form a limited space in a first closed state; And / or, the first abutting surface, the second latching slot, the second abutting surface and the first latching slot cooperate to form a second closed state; And / or, the sliding surface is located above the second slot along the direction of gravity; And / or, the bottom of the first slot is located below the second abutting surface along the direction of gravity, and the bottom of the second slot is located above the first abutting surface along the direction of gravity.

6. A clamping control system for skeleton welding according to any one of claims 1 to 5, characterized in that: The accessory fixing module includes a first driving unit, the output section of the first driving unit is connected to the movable base, so that the movable base has a first movable stroke in a 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 achieve drive control of the second movable stroke.

7. A clamping control system for skeleton welding according to any one of claims 1 to 5, characterized in that: The auxiliary fixing assembly includes a fixing head, the fixing head is provided with a third slot, and the third slot includes a gradual section that is provided at an opening and gradually increases in size along the opening direction.

8. The clamping control system for skeleton welding according to claim 7, characterized in that: The accessory fixing module includes multiple auxiliary fixing components, at least one of which 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 slot to achieve clamping and fixation of the middle part of the skeleton accessory.

9. A clamping control system for skeleton welding according to any one of claims 1 to 5, characterized in that: The clamping control system also includes a control module, and the end fixing assembly and the power source of the first movable stroke are respectively connected to the control module. The control module is configured to: in the first state, control the end fixing assembly to constrain the end of the skeleton accessory to perform limited space movement, 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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