Supporting device for automobile machining and welding

Abstract

The invention provides a supporting device for automobile machining and welding, and relates to the technical field of automobile machining, the supporting device comprises a lower frame body supporting frame and a plurality of supporting and clamping mechanisms, and the supporting and clamping mechanisms are composed of symmetrically arranged edge supporting and clamping assemblies. The edge supporting and clamping assembly comprises a supporting and clamping base part, a movable supporting plate, a supporting air cylinder part, a movable supporting rod unit, an upper clamping unit and a locking part. The movable supporting rod unit is connected with the movable supporting plate through a spring piece, and a deformation sensor is arranged on the surface of the spring piece to detect the supporting state. The height of the movable supporting rod unit is adjusted to adapt to fluctuation of the edge of the automobile sheet metal part. The locking part can fix the vertical position of the movable supporting rod unit and drive the upper clamping unit to rotate and press the edge of the automobile sheet metal part, and welding stability is guaranteed. Through dynamic adjustment of supporting points, uniform dispersion of stress and a double-locking mechanism, the problems of automobile sheet metal part deformation, welding vibration and the like caused by a traditional supporting device are effectively solved, and the welding precision and efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile processing, in particular to a supporting device for automobile processing welding. Background Art

[0002] Automotive sheet metal parts are key components in vehicle body manufacturing and are widely used in areas such as doors, hoods, and fenders. During processing, sheet metal parts are formed and connected through processes such as welding and stamping. During welding, the edges of sheet metal parts must be stably supported to prevent deformation or displacement, ensuring weld accuracy and quality.

[0003] Traditional support devices often use fixed fixtures or a single support point, which are difficult to adapt to the height fluctuations of sheet metal edges. This can easily lead to localized force concentration, causing deformation or weld misalignment. Furthermore, the sheet metal must be flipped during welding to achieve double-sided welding. Existing devices can easily cause the sheet metal to loosen during flipping, affecting processing efficiency and quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a supporting device for automobile machining and welding, so as to solve the technical problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A support device for automobile processing and welding, comprising a lower frame support and a plurality of clamping mechanisms for supporting and clamping the edges of automobile sheet metal parts, both ends of the lower frame support are provided with relatively aligned external supports and the external supports are used to be connected to an external rotation drive device, the clamping mechanisms are evenly spaced on the lower frame support and the clamping mechanisms include two relatively arranged edge clamping assemblies, the edge clamping assemblies include a clamping base part, a movable support plate, a support cylinder part, a movable support rod unit, an upper clamping unit and a locking component, the clamping base part is provided on the lower frame support, the movable support plate can be vertically slidably provided on the clamping base part and is connected to the support cylinder part, the bottom of the support cylinder part is connected to The clamping base is connected; the bottom of the movable strut unit passes through the movable strut plate and is connected to it through a spring part, and the surface of the spring part has a deformation sensor. The top of the movable strut unit can be supported from the lower side of the edge of the automobile sheet metal. The upper clamping unit is rotatably arranged on the side of the top of the movable strut unit away from the automobile sheet metal. The top of the upper clamping unit can be rotated to the upper side of the movable strut unit and pressed on the upper side of the edge of the automobile sheet metal. The locking component is arranged on the movable support plate, and the locking component is connected to the bottom of the upper clamping unit and is connected to the vertical strut. The locking component can drive the upper clamping unit to rotate around the connection between it and the movable strut unit, and lock or release the movable strut unit.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: the movable support rod unit includes a vertical support rod and a semicircular support seat, the vertical support rod can slide through the movable support plate, a lower plate portion is provided at the bottom of the vertical support rod and the lower plate portion is connected to the end of the spring member away from the movable support plate, a support shaft member is provided at the top of the vertical support rod and the semicircular support seat is rotatably provided on the support shaft member, and the plane of the semicircular support seat faces upward.

[0009] In an optional solution: a lower sliding rail is provided at the bottom of the movable support plate, and the locking component includes a driving unit and two movable seats, the two movable seats are slidably provided on the lower sliding rail in a symmetrical manner, and the side of the movable seat is fixedly connected with a locking clip, which can be clamped on the outer wall of the vertical support rod from the side and lock the vertical support rod; the driving unit is provided on the movable support plate and connected to the two movable seats, and the driving unit can drive the two movable seats to move synchronously in opposite directions.

[0010] In an optional scheme: a guide groove perpendicular to the lower rail is opened on the movable support plate, and the driving unit includes a power slide, a screw rod part and a locking motor. The power slide can be slidably arranged inside the guide groove, and the screw rod part is rotatably arranged in the lower rail and spirally penetrates the power slide. The locking motor is arranged on the side wall of the movable support plate and its output end is connected to the end of the screw rod part. The lower end face of the power slide is connected to the two movable seats through two locking connecting rod parts respectively, and the upper end of the power slide is connected to the upper clamping unit through the upper clamping connecting rod group.

[0011] In an optional solution: the upper clamping unit includes an upper pressure shaft, an upper pressure support arm and a semicircular movable pressure block, the upper pressure shaft is rotatably connected to the side of the vertical support rod near the top, the upper pressure shaft is connected to the end of the upper clamping connecting rod group away from the power slide, one end of the upper pressure support arm is fixedly connected to the upper pressure shaft, and the other end is provided with an upper pressure movable rod, and the semicircular movable pressure block is rotatably provided on the semicircular movable pressure block.

[0012] In an optional solution: an upper clamping gear is provided on the upper pressure shaft, and the upper clamping connecting rod group includes a flip connecting rod and a flip rack, the flip rack is provided on the side wall of the vertical support rod and can slide along the length direction of the vertical support rod, the flip rack is engaged with the upper clamping gear, one end of the flip connecting rod is hinged to the top of the power slide, and the other end is hinged to the bottom of the flip rack.

[0013] In an optional scheme: multiple cross bars are provided on the lower frame support, and multiple clamping mechanisms are respectively installed on the cross bars, the bottom of the clamping base is slidably connected to the cross bars, and a width adjustment component is also provided in the middle position of the lower frame support, and the width adjustment component includes a width adjustment shaft, a width adjustment motor and a width adjustment seat, the width adjustment shaft is rotatably provided on the lower frame support, and one end of the width adjustment shaft is connected to the output end of the width adjustment motor, the width adjustment shaft has multiple spiral sections and multiple width adjustment seats are respectively mounted on the spiral sections, the width adjustment seat corresponds one to the clamping mechanism and width adjustment connecting rods are provided on both side walls of the width adjustment seat, one end of the width adjustment connecting rod is hinged to the side of the width adjustment seat, and the other end is hinged to the side wall of the clamping base on the same side.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects:

[0015] The support device for automobile processing and welding provided by the present invention can adapt to the height changes of the edge of the sheet metal part through the cooperation of the spring part and the deformation sensor, so that all support points are in uniform contact and deformation caused by local force concentration is avoided; the support cylinder part drives the movable support plate to rise and fall, and dynamically adjusts the height of the non-contact support points in combination with the feedback of the deformation sensor until all support points effectively support the sheet metal part, thereby improving positioning accuracy; the locking component can fix the vertical position of the movable support rod unit and drive the upper clamping unit to press the edge of the sheet metal part, effectively suppressing welding vibration and ensuring welding quality; the external support is connected to the rotary drive device to realize the flipping of the sheet metal part, and during the flipping process, the upper clamping unit and the movable support rod unit always clamp the edge to avoid loosening or displacement; the locking component quickly releases the upper clamping unit to facilitate material removal; the device is suitable for sheet metal parts of different shapes, thereby improving processing flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are 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.

[0017] Figure 1 The figure is a schematic structural diagram of a supporting device supporting an automobile sheet metal part in one embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the supporting device structure in one embodiment of the present invention.

[0019] Figure 3 This is a schematic structural diagram of an edge support clamp assembly from one perspective in one embodiment of the present invention.

[0020] Figure 4 This is a schematic structural diagram of an edge clamping assembly from another perspective in an embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the upper clamping unit and locking component structure in one embodiment of the present invention.

[0022] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0023] Figure 7 Schematic diagram of the structure of the width adjustment component in one embodiment of the present invention.

[0024] Figure numerals: lower frame support 100, automobile sheet metal 200, edge support clamp assembly 300, support clamp base 310, movable support plate 320, lower slide rail 321, guide groove 322, support cylinder 330, movable support rod unit 340, vertical support rod 341, lower plate 342, semicircular support seat 343, support shaft 344, upper clamp unit 350, upper pressure shaft 351, upper pressure support arm 352, upper pressure movable rod 353, semicircular movable pressure block 354, upper clamp gear 355, locking component 360, power slide 361, screw part 362, locking motor 363, movable seat 364, locking clamp 365, locking link part 366, upper clamp connecting rod group 370, flip link 371, flip rack 372, spring part 380, cross bar part 400, external support 500, width adjustment assembly 600, width adjustment shaft 610, spiral section 620, width adjustment seat 630, width adjustment link 640, width adjustment motor 650. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] The left, right, up, and down positions of the components shown in the accompanying drawings are merely one arrangement, and the specific positions are set according to specific needs.

[0027] In one embodiment, Figures 1-4As shown, a support device for automobile processing and welding includes a lower frame support 100 and a plurality of clamping mechanisms for supporting and clamping the edges of automobile sheet metal parts 200, and both ends of the lower frame support 100 are provided with relatively aligned external supports 500 and the external supports 500 are used to be connected to an external rotation drive device, the clamping mechanisms are evenly spaced on the lower frame support 100 and the clamping mechanisms include two relatively arranged edge clamping assemblies 300, the edge clamping assemblies 300 include a clamping base part 310, a movable support plate 320, a support cylinder part 330, a movable support rod unit 340, an upper clamping unit 350 and a locking component 360, the clamping base part 310 is provided on the lower frame support 100, the movable support plate 320 can be vertically slidably provided on the clamping base part 310 and is connected to the support cylinder part 330, the bottom of the support cylinder part 330 is connected to the support The clamping base portion 310 is connected; the bottom of the movable strut unit 340 passes through the movable support plate 320 and is connected thereto by a spring member 380, and the surface of the spring member 380 has a deformation sensor, and the top of the movable strut unit 340 can be supported from the lower side of the edge of the automobile sheet metal 200, and the upper clamping unit 350 is rotatably arranged on the side of the top of the movable strut unit 340 away from the automobile sheet metal 200, and the top of the upper clamping unit 350 can be rotated to the upper side of the movable strut unit 340 and pressed on the upper side of the edge of the automobile sheet metal 200, and the locking component 360 is arranged on the movable support plate 320, and the locking component 360 is connected to the bottom of the upper clamping unit 350 and is connected to the vertical strut 341, and the locking component 360 can drive the upper clamping unit 350 to rotate around the connection between it and the movable strut unit 340, and lock or release the movable strut unit 340.

[0028] In the embodiment of the present invention, in the initial state, the upper clamping unit 350 is located on the side of the movable strut unit 340 away from the automobile sheet metal part 200, and the movable support plate 320 is driven to move vertically along the clamping base part 310 by the extension and contraction of the support cylinder part 330 to adjust the height of the top of the movable strut unit 340. The automobile sheet metal part 200 is placed in the welding position by a robot or manually, and the tops of the movable strut units 340 in the multiple edge clamping assemblies 300 respectively support the edges of the automobile sheet metal part 200 from both sides; since the height of the position where the top of the movable strut unit 340 supports the edge of the automobile sheet metal part 200 fluctuates, the top of some movable strut units 340 contacts the lower side of the edge of the automobile sheet metal part 200 and plays a supporting role. The weight of the movable strut unit 340 and the automobile sheet metal part 200 moves downward a short distance, the spring part 380 is deformed, and the deformation sensor on its surface generates induction; for the edge clamping assembly 300 where the top of the movable strut unit 340 does not contact the edge of the automobile sheet metal part 200, since the spring part 380 does not deform, the deformation sensor does not generate induction, and the supporting cylinder part 330 can be started again and drive the movable support plate 320 to move upward, and the top of the movable strut unit 340 moves upward until the top of the movable strut unit 340 contacts the lower side of the edge of the automobile sheet metal part 200 and plays a supporting role. At this time, all the edge clamping assemblies 300 support the edge of the automobile sheet metal part 200, which can prevent the edge of the automobile sheet metal part 200 from being deformed due to concentrated force; The locking component 360 works and acts on the upper clamping unit 350 and the movable strut unit 340. The locking component 360 locks the movable strut unit 340 on the movable support plate 320 to limit the vertical movement of the movable strut unit 340 relative to the movable support plate 320, thereby preventing the movable strut unit 340 from vibrating vertically during welding and causing the automobile sheet metal part 200 to vibrate, thereby affecting the welding quality. The locking component 360 acts on the upper clamping unit 350 to rotate around the connection with the movable strut unit 340. The upper clamping unit 350 rotates to the upper side of the automobile sheet metal part 200 and presses on the edge of the automobile sheet metal part 200. Then, the upper clamping unit 350 and the movable strut unit 340 cooperate to press the edge of the automobile sheet metal part 200 to ensure that the automobile sheet metal part 200 Stability during welding; after the welding of one end face of the automobile sheet metal part 200 is completed, the external rotary drive device drives the external support 500 to rotate, so that the lower frame support 100 and multiple edge clamping assemblies 300 rotate around the connection between the external support 500 and the external rotary drive device to realize the flipping of the automobile sheet metal part 200, thereby facilitating double-sided welding of the automobile sheet metal part 200. Since the upper clamping unit 350 and the movable support rod unit 340 always clamp the edge of the automobile sheet metal part 200, the stability of the automobile sheet metal part 200 can be effectively guaranteed and concentrated support can be avoided. When taking materials, only the locking component 360 needs to act on the upper clamping unit 350 to rotate it in the opposite direction. The upper clamping unit 350 no longer presses the edge of the automobile sheet metal part 200, so that quick material taking can be achieved.Among them, the external rotation driving device is a conventional rotating motor module, which belongs to the existing technology and will not be described here in detail.

[0029] In one embodiment, Figures 1-4 As shown, the movable support rod unit 340 includes a vertical support rod 341 and a semicircular support seat 343. The vertical support rod 341 can slide through the movable support plate 320. A lower plate portion 342 is provided at the bottom of the vertical support rod 341, and the lower plate portion 342 is connected to the end of the spring member 380 away from the movable support plate 320. A support shaft member 344 is provided at the top of the vertical support rod 341, and the semicircular support seat 343 is rotatably provided on the support shaft member 344, and the plane of the semicircular support seat 343 faces upward; in this embodiment of the present invention, the lower side of the edge of the automobile sheet metal part 200 is supported by the plane of the semicircular support seat 343. Since the semicircular support seat 343 can rotate relative to the support shaft member 344, the semicircular support seat 343 can rotate according to the shape of the edge of the automobile sheet metal part 200 to adapt to the shape of the edge of the automobile sheet metal part 200, thereby increasing the support surface and reducing the influence on the shape of the automobile sheet metal part 200 during support.

[0030] In one embodiment, Figures 1-6 As shown, the movable support plate 320 is provided with a lower rail 321 at the bottom, and the locking component 360 includes a driving unit and two movable seats 364. The two movable seats 364 are slidably arranged on the lower rail 321 in a symmetrical manner. The side of the movable seat 364 is fixedly connected with a locking clamp 365. The locking clamp 365 can be clamped on the outer wall of the vertical support rod 341 from the side and lock the vertical support rod 341; the driving unit is provided on the movable support plate 320 and connected to the two movable seats 364. The driving unit can drive the two movable seats 364 to move synchronously in the opposite direction; in this embodiment of the present invention, the two movable seats 364 play a role in the driving unit. The lower rail 321 moves synchronously in the opposite direction along the lower edge. When the two movable seats 364 move toward each other, the movable seat 364 gradually approaches the vertical support rod 341 and is stuck on the side of the vertical support rod 341 to lock it, thereby preventing the vertical support rod 341 from vibrating vertically and affecting the stability of the semicircular support seat 343 supporting the automobile sheet metal part 200; when the two movable seats 364 move away from each other, the movable seat 364 moves away from the vertical support rod 341 and unlocks the lock on the vertical support rod 341. The vertical support rod 341 moves vertically under the resistance of the spring member 380, so that the semicircular support seat 343 adapts to the shape change of the edge of the automobile sheet metal part 200.

[0031] In one embodiment, Figures 1-6As shown, the movable support plate 320 is provided with a guide groove 322 perpendicular to the lower rail 321, and the driving unit includes a power slide 361, a screw rod portion 362 and a locking motor 363. The power slide 361 is slidably arranged inside the guide groove 322, and the screw rod portion 362 is rotatably arranged in the lower rail 321 and spirally penetrates the power slide 361. The locking motor 363 is arranged on the side wall of the movable support plate 320 and its output end is connected to the end of the screw rod portion 362. The lower end surface of the power slide 361 is connected to the two movable seats 364 through two locking connecting rod portions 366 respectively, and the upper end of the power slide 361 is connected to the upper clamping unit 350 through the upper clamping connecting rod group 370. In this embodiment of the present invention, one end of the locking connecting rod portion 366 is connected to the power The slide 361 is hinged and the other end is hinged to the movable seat 364; the locking motor 363 works and drives the screw rod part 362 to rotate, and the screw rod part 362 can make the power slide 361 move along the guide groove 322 through the spiral cooperation with the power slide 361, and the power slide 361 can act on the two movable seats 364 respectively through the two locking connecting rod parts 366, and the two movable seats 364 move synchronously in opposite directions along the lower slide rail 321 to achieve locking and release of the vertical support rod 341 through the locking clip 365; the moving power slide 361 also acts on the upper clamping unit 350 through the upper clamping connecting rod group 370, so that it rotates around the connection with the top of the movable support rod unit 340, so as to achieve clamping and release of the edge of the automobile sheet metal 200 from the upper side.

[0032] In one embodiment, Figures 1-6As shown, the upper clamping unit 350 includes an upper pressing shaft 351, an upper pressing arm 352 and a semicircular movable pressing block 354, the upper pressing shaft 351 is rotatably connected to the side of the vertical support rod 341 near the top, the upper pressing shaft 351 is connected to the end of the upper clamping connecting rod group 370 away from the power slide 361, one end of the upper pressing arm 352 is fixedly connected to the upper pressing shaft 351, and the other end is provided with an upper pressing movable rod 353, the semicircular movable pressing block 354 is rotatably provided on the upper pressing movable rod 353; in this embodiment of the present invention, the shape and size of the semicircular movable pressing block 354 are the same as those of the semicircular support seat 343. When the semicircular movable pressing block 354 is on the upper side of the semicircular support seat 343, the flat part of the semicircular movable pressing block 354 faces downward and cooperates with the semicircular support seat 343 to press the automobile sheet metal. When the semicircular movable pressure block 354 is on the side of the vertical support rod 341 close to the automobile sheet metal part 200, it can cooperate with the semicircular support seat 343 to clamp the edge of the automobile sheet metal part 200; when the semicircular movable pressure block 354 is on the side of the vertical support rod 341 away from the automobile sheet metal part 200, the semicircular movable pressure block 354 will not prevent the automobile sheet metal part 200 from detaching from the top of the movable support rod unit 340, thereby realizing rapid material removal and release.

[0033] In one embodiment, Figures 1-6As shown, the upper clamping gear 355 is provided on the upper pressure rotating shaft 351, and the upper clamping connecting rod group 370 includes a flip connecting rod 371 and a flip rack 372. The flip rack 372 is provided on the side wall of the vertical support rod 341 and can slide along the length direction of the vertical support rod 341. The flip rack 372 is meshed with the upper clamping gear 355, and one end of the flip connecting rod 371 is hinged to the top of the power slide 361, and the other end is hinged to the bottom of the flip rack 372. In this embodiment of the present invention, when the vertical support rod 341 moves vertically relative to the movable support plate 320, the upper pressure rotating shaft 351 and the upper pressure support arm 352 will move with the vertical support rod 341. At this time, the flip rack 372 will be relatively When stationary, the upper clamping gear 355 engages with the flip rack 372, causing the upper pressure shaft 351 and the upper pressure arm 352 to rotate, and the rotation angle is relatively small, so the upper clamping unit 350 is always on the side of the vertical support rod 341 away from the automobile sheet metal part 200; when the power slide 361 moves inside the guide groove 322, the locking clamp 365 clamps the side of the vertical support rod 341 and limits the vertical movement, and the power slide 361 pushes and pulls the flip rack 372 through the flip connecting rod 371, and the flip rack 372 moves vertically relative to the vertical support rod 341, which can cause the upper pressure shaft 351 and the upper pressure arm 352 to rotate, and the semicircular movable pressure block 354 can be rotated to both sides of the vertical support rod 341 respectively.

[0034] In one embodiment, Figure 1 、 Figure 2 and Figure 7As shown, the lower frame support frame 100 is provided with multiple cross bars 400, and multiple clamping mechanisms are respectively installed on the cross bars 400. The bottom of the clamping base portion 310 is slidably connected to the cross bars 400. A width adjustment component 600 is also provided at the middle position of the lower frame support frame 100, and the width adjustment component 600 includes a width adjustment shaft 610, a width adjustment motor 650 and a width adjustment seat 630. The width adjustment shaft 610 is rotatably provided on the lower frame support frame 100, and one end of the width adjustment shaft 610 is connected to the output end of the width adjustment motor 650. The width adjustment shaft 610 has multiple spiral sections 620 and multiple width adjustment seats 630 are respectively sleeved on the spiral sections 620. The width adjustment seats 630 correspond to the clamping mechanisms one by one, and width adjustment connecting rods 640 are provided on both side walls of the width adjustment seat 630. One end is hinged to the side of the width adjustment seat 630, and the other end is hinged to the side wall of the clamping base portion 310 located on the same side; in this embodiment of the present invention, the width adjustment motor 650 works and drives the width adjustment shaft 610 to rotate, and the width adjustment shaft 610 can make the width adjustment seat 630 move along the axial direction of the width adjustment shaft 610 through the spiral cooperation between the width adjustment seat 630 and the spiral section 620. The width adjustment seat 630 in the moving state acts on the corresponding edge clamping assembly 300 through the width adjustment connecting rod 640, and the edge clamping assembly 300 moves along the cross bar portion 400 to adjust the lateral position. The two edge clamping assemblies 300 on the same cross bar portion 400 move synchronously in opposite directions, thereby adjusting the distance between the two edge clamping assemblies 300 and the lateral position of the support point at the top of the movable support bar unit 340 to adapt to automobile sheet metal parts 200 of different widths.

[0035] The above embodiment discloses a support device for automobile processing welding, and its working principle is as follows:

[0036] 1. Initial state and placement of automobile sheet metal parts 200

[0037] Initial state: The upper clamping unit 350 is located on the side of the movable support rod unit 340 away from the automobile sheet metal part 200. The clamping mechanism adjusts the height of the movable support plate 320 through the supporting cylinder part 330, so that the semicircular support seat 343 on the top of the movable support rod unit 340 is initially aligned with the expected support position of the edge of the automobile sheet metal part 200.

[0038] Placing the automobile sheet metal part 200: The automobile sheet metal part 200 is placed on the welding station by a robot or manually, and its edges are naturally overlapped on the semicircular support seats 343 of the multiple edge support clamping assemblies 300.

[0039] 2. Adaptive support and height adjustment

[0040] Contact Detection: When the edge of an automotive sheet metal component 200 contacts the semicircular supports 343, the weight of the component 200 presses down on the vertical support rod 341, compressing the spring element 380 and triggering a signal from the strain sensor on its surface. The untouched edge of the clamp assembly 300, where the spring element 380 remains undeformed, generates no signal from the strain sensor. The support cylinder 330 drives the movable support plate 320 to continue rising until all semicircular supports 343 contact the edge of the automotive sheet metal component 200, triggering the strain sensor.

[0041] Uniform support: Ensure uniform force on the edges of 200 automotive sheet metal parts through point-by-point adjustment to avoid local deformation.

[0042] 3. Locking and clamping

[0043] Vertical locking: The driving unit (locking motor 363) of the locking component 360 is started, and the power slide 361 is pushed to move through the screw rod 362, driving the two movable seats 364 to slide toward each other along the lower rail 321, so that the locking clamp 365 clamps the vertical support rod 341, limiting its vertical movement and preventing welding vibration.

[0044] The upper clamping unit presses: When the power slide 361 moves, the upper pressure shaft 351 is driven to rotate through the upper clamping connecting rod group 370 (flip connecting rod 371 and flip rack 372), so that the upper pressure support arm 352 drives the semicircular movable pressure block 354 to rotate to the upper side of the edge of the automobile sheet metal 200, and cooperates with the semicircular support seat 343 to clamp the edge.

[0045] 4. Welding and flipping

[0046] Welding stage: After the automobile sheet metal part 200 is stably clamped, single-sided welding is performed.

[0047] Flip operation:

[0048] The external rotation driving device drives the lower frame support 100 to flip over as a whole through the external support 500, and the automobile sheet metal part 200 rotates 180 degrees accordingly.

[0049] The clamping mechanism maintains a clamping state to ensure that the automobile sheet metal part 200 does not move or become loose during the flipping process.

[0050] Double-sided welding: Flip over and weld the other side.

[0051] 5. Material removal and resetting

[0052] Unlock and Release:

[0053] After welding is completed, the locking motor 363 drives the screw rod 362 in reverse to reset the power slide 361, and the locking clamp 365 is disengaged from the vertical support rod 341, and the upper clamping unit 350 rotates in reverse to the side away from the automobile sheet metal part 200.

[0054] Material removal: The automobile sheet metal part 200 can be directly removed by a robot or manually to complete the processing process.

[0055] 6. Width adjustment function (optional)

[0056] The width adjustment motor 650 drives the width adjustment shaft 610 to rotate, the spiral section 620 pushes the width adjustment seat 630 to move, and the width adjustment connecting rod 640 drives the two side clamping mechanisms to slide synchronously in opposite directions, adjusting the support spacing to adapt to automobile sheet metal parts 200 of different widths.

[0057] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A support device for automobile processing and welding, comprising a lower frame support and a plurality of support and clamping mechanisms for supporting and clamping the edges of automobile sheet metal parts, characterized in that: Both ends of the lower frame support are provided with relatively aligned external supports and the external supports are used to connect to the external rotation drive device. The clamping mechanism is evenly spaced on the lower frame support and includes two oppositely arranged edge clamping assemblies. The edge support and clamping assembly includes a support and clamping base portion, a movable support plate, a support cylinder portion, a movable support rod unit, an upper clamping unit and a locking component; The support base is provided on the lower frame support frame, the movable support plate is vertically slidably provided on the support base and connected to the support cylinder, and the bottom of the support cylinder is connected to the support base; The bottom of the movable support rod unit passes through the movable support plate and is connected to it through a spring member. The surface of the spring member has a deformation sensor. The top of the movable support rod unit can support the lower side of the edge of the automobile sheet metal part. The upper clamping unit is rotatably arranged on the side of the top of the movable strut unit away from the automobile sheet metal part, and the top of the upper clamping unit can be rotated to the upper side of the movable strut unit and pressed against the upper side of the edge of the automobile sheet metal part; The locking component is arranged on the movable support plate, and is connected to the bottom of the upper clamping unit and to the vertical support rod. The locking component can drive the upper clamping unit to rotate around the connection between it and the movable support rod unit, and lock or release the movable support rod unit.

2. The supporting device for automobile machining and welding according to claim 1, characterized in that: The movable support rod unit includes a vertical support rod and a semicircular support seat; The vertical support rod can slide through the movable support plate. A lower plate portion is provided at the bottom of the vertical support rod and is connected to the end of the spring member away from the movable support plate. A support shaft member is provided at the top of the vertical support rod and a semicircular support seat is rotatably provided on the support shaft member, with the plane of the semicircular support seat facing upward.

3. The supporting device for automobile machining and welding according to claim 2, characterized in that: The bottom of the movable support plate is provided with a lower slide rail, and the locking component includes a driving unit and two movable seats; The two movable seats are slidably arranged on the lower rail in a symmetrical manner. The sides of the movable seats are fixedly connected with locking clips, which can be clamped on the outer wall of the vertical support rod from the side and lock the vertical support rod; The driving unit is arranged on the movable support plate and connected to the two movable seats. The driving unit can drive the two movable seats to move synchronously in opposite directions.

4. The supporting device for automobile machining and welding according to claim 3, characterized in that: The movable support plate is provided with a guide groove perpendicular to the lower rail, and the driving unit includes a power slide, a screw rod and a locking motor; The power slide can be slidably arranged inside the guide groove, the screw rod part is rotatably arranged in the lower rail and spirally penetrates the power slide, the locking motor is arranged on the side wall of the movable support plate and its output end is connected to the end of the screw rod part, the lower end surface of the power slide is connected to the two movable seats through two locking connecting rod parts respectively, and the upper end of the power slide is connected to the upper clamping unit through the upper clamping connecting rod group.

5. The supporting device for automobile machining and welding according to claim 4, characterized in that: The upper clamping unit includes an upper pressing shaft, an upper pressing arm and a semicircular movable pressing block; The upper pressure shaft is rotatably connected to the side of the vertical support rod near the top, and the upper pressure shaft is connected to the end of the upper clamp connecting rod group away from the power slide. One end of the upper pressure support arm is fixedly connected to the upper pressure shaft, and the other end is provided with an upper pressure movable rod, and the semicircular movable pressure block is rotatably provided on the semicircular movable pressure block.

6. The supporting device for automobile machining and welding according to claim 5, characterized in that: The upper pressing shaft is provided with an upper clamping gear, and the upper clamping connecting rod group includes a flip connecting rod and a flip rack; The flip rack is arranged on the side wall of the vertical support rod and can slide along the length direction of the vertical support rod. The flip rack is engaged with the upper clamping gear. One end of the flip connecting rod is hinged to the top of the power slide seat, and the other end is hinged to the bottom of the flip rack.

7. The automobile machining welding support device according to any one of claims 1 to 6, characterized in that: The lower frame support is provided with a plurality of cross bars, and a plurality of clamping mechanisms are respectively installed on the cross bars. The bottom of the clamping base is slidably connected to the cross bars. A width adjustment component is also provided at the middle position of the lower frame support, and the width adjustment component includes a width adjustment shaft, a width adjustment motor and a width adjustment seat. The width adjustment shaft is rotatably mounted on the lower frame support and one end of the width adjustment shaft is connected to the output end of the width adjustment motor. The width adjustment shaft has a plurality of spiral segments and a plurality of width adjustment seats are respectively sleeved on the spiral segments. The width adjustment seat corresponds to the clamping mechanism one by one and width adjustment connecting rods are provided on both side walls of the width adjustment seat. One end of the width adjustment connecting rod is hinged to the side of the width adjustment seat, and the other end is hinged to the side wall of the clamping base on the same side.

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