Transfer trolley and welding mechanism

Abstract

The utility model provides a transfer trolley and a welding mechanism. The transfer trolley comprises a moving trolley; the overturning assembly comprises a rotary driving structure and a supporting seat, the supporting seat is arranged on the moving trolley and used for supporting a workpiece, the supporting seat can rotate relative to the moving trolley, and the rotary driving structure is connected with the supporting seat so as to drive the supporting seat to rotate; the first clamping assembly comprises a first clamping piece and a second clamping piece which are oppositely arranged at the two ends of the supporting seat, the first clamping piece and the second clamping piece can be close to each other so as to clamp a workpiece on the supporting seat, and the rotary driving structure is connected with the first clamping piece and the second clamping piece so as to drive the first clamping piece and the second clamping piece to rotate. And the first clamping piece and the second clamping piece can synchronously rotate with the supporting seat. In other words, the transfer trolley can improve the machining efficiency of the workpieces.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece transfer technology, and more specifically, it relates to a transfer trolley and welding mechanism. Background Technology

[0002] Workpieces often need to be transferred during production. For example, a transfer trolley can be used to move a workpiece from one workstation to the next for processing. When a workpiece needs to be processed on different sides, it is inconvenient for the processing equipment to directly process the workpiece on the transfer trolley. Therefore, the transfer process generally involves first moving the workpiece from the previous workstation to the transfer trolley, then transporting the workpiece to the next workstation via the transfer trolley, and finally moving the workpiece from the transfer trolley to the processing platform at the next workstation for processing. This method requires multiple workpiece transfers and is inefficient. Utility Model Content

[0003] The present invention relates to a transfer trolley and a welding mechanism, which can directly process the workpieces on the transfer trolley with high processing efficiency.

[0004] The technical solution adopted by this utility model is a transfer trolley, including:

[0005] Mobile cart;

[0006] The flipping assembly includes a rotary drive structure and a support base. The support base is disposed on the mobile trolley for supporting the workpiece and is rotatable relative to the mobile trolley. The rotary drive structure is connected to the support base to drive the support base to rotate.

[0007] The first clamping assembly includes a first clamping member and a second clamping member disposed opposite to each other, and the first clamping member and the second clamping member can approach each other to clamp the workpiece on the support base. The rotary drive structure is connected to the first clamping member and the second clamping member respectively, so that the first clamping member and the second clamping member can rotate synchronously with the support base.

[0008] In other words, the transfer trolley of this application is provided with a support seat for supporting the workpiece, and a rotatable drive structure can drive the workpiece to rotate by driving the support seat. Furthermore, a first clamping assembly including a first clamping member and a second clamping member is provided on the mobile trolley. When the rotatable drive structure drives the support seat to rotate, it can be used to clamp the workpiece to the support seat. In this way, the workpiece can rotate during the processing, which enables processing on different sides of the workpiece on the transfer trolley, eliminating the need to unload the workpiece from the transfer trolley for processing, thereby improving the processing efficiency of the workpiece.

[0009] Optionally, the rotary drive structure includes a base and a rotating disk. The base is disposed opposite to the mobile trolley, and each base is rotatably connected to the rotating disk. The support base is disposed between the rotating disks and connected to each rotating disk to rotate with the rotating disk.

[0010] Optionally, the rotary drive structure further includes a support wheel, which is disposed on the mobile trolley and can contact and slide relative to the circumferential surface of the rotating disk;

[0011] Each of the support wheels has a limiting groove on its outer circumferential surface, and the rotating disk contacts the limiting groove.

[0012] Optionally, the rotary drive structure further includes a positioning pin, which is disposed on the mobile trolley or base, and the rotating disk is provided with a positioning hole. When the rotating disk rotates to a predetermined position, the positioning pin can be inserted into the positioning hole.

[0013] Optionally, the first clamping assembly further includes a first clamping drive structure, which is disposed on the base and drivenly connected to the second clamping member, so that the second clamping member can approach the first clamping member in a direction parallel to the rotation axis direction of the support; and

[0014] The first clamping drive structure is rotatable relative to the base.

[0015] Optionally, the first clamping drive structure includes a first lead screw and a first lead screw nut slidably disposed on the first lead screw. The first lead screw is disposed on the base and can rotate relative to the base. The second clamping member is connected to the first lead screw nut.

[0016] Optionally, the rotary drive structure further includes a rotating shaft, through which the rotating disk is rotatably mounted on the base;

[0017] The rotating shaft is provided with a first clearance hole, the first lead screw passes through the first clearance hole and can rotate within the first clearance hole;

[0018] A first handwheel is provided at the end of the first lead screw away from the second clamping member;

[0019] The base is provided with a clamping component, which is used to clamp the first lead screw.

[0020] Optionally, the second clamping member is provided with a second clearance hole, which is used to avoid the first lead screw.

[0021] Optionally, the first clamping assembly further includes a guide structure disposed between the rotating disks and connected to the rotating disks respectively, and the second clamping member is slidably connected to the guide structure.

[0022] Optionally, the guide structure includes multiple guide rods, which are arranged between the rotating disks along the circumferential direction of the rotating disks and respectively connected to the rotating disks. The second clamping member is slidably disposed on each of the guide rods.

[0023] Optionally, a pressure sensor may be provided on the first clamping member and / or the second clamping member.

[0024] Optionally, the system further includes a second clamping assembly, which includes a third clamping member and a fourth clamping member disposed opposite to each other on both sides of the support base. The third clamping member and the fourth clamping member are capable of approaching each other in a direction perpendicular to the clamping direction of the first clamping member and the second clamping member to clamp the workpiece on the support base.

[0025] Optionally, the second clamping assembly further includes a second clamping drive structure and a third clamping drive structure, which are respectively disposed on the rotating disk. The second clamping drive structure is drivenly connected to the third clamping member to allow the third clamping member to approach the fourth clamping member, and the third clamping drive structure is drivenly connected to the fourth clamping member to allow the fourth clamping member to approach the third clamping member; and

[0026] The rotating disk is also provided with a stop, which is used to stop the third clamping member or the fourth clamping member.

[0027] Optionally, the second clamping drive structure includes a second lead screw, a second lead screw nut, and a second handwheel. The second lead screw is disposed on the rotating disk and can rotate relative to the rotating disk. The second lead screw nut is slidably engaged with the second lead screw. The third clamping member is connected to the second lead screw nut, and the second handwheel is connected to the end of the second lead screw away from the third clamping member.

[0028] The third clamping drive structure includes a third lead screw, a third lead screw nut, and a third handwheel. The third lead screw is mounted on the rotating disk and can rotate relative to the rotating disk. The third lead screw nut is slidably engaged with the third lead screw. The fourth clamping member is connected to the third lead screw nut. The third handwheel is connected to the end of the third lead screw away from the fourth clamping member.

[0029] Optionally, the third clamping member and / or the fourth clamping member are respectively provided with a third clearance hole at the welding part of the workpiece.

[0030] A welding mechanism includes a welding device and a transfer trolley, wherein the welding device is disposed on the movement path of the transfer trolley and is used to weld workpieces on the transfer trolley. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of the transfer trolley provided by this utility model;

[0033] Figure 2 A top view of the transfer trolley provided by this utility model;

[0034] Figure 3 for Figure 2 Sectional view at point AA;

[0035] Figure 4 A schematic diagram of the structure of the first clamping assembly in the transfer trolley provided by this utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the second clamping assembly in the transfer trolley provided by this utility model.

[0037] Figure label:

[0038] 100. Mobile cart;

[0039] 200. Flipping assembly; 210. Rotary drive structure; 211. Base; 212. Rotating disk; 213. Support wheel; 214. Limiting groove; 215. Positioning pin; 216. Positioning hole; 217. Rotating shaft; 218. Second bearing seat; 219. First clearance hole; 220. Support seat;

[0040] 300, First clamping assembly; 310, First clamping element; 320, Second clamping element; 321, Second clearance hole; 330, First clamping drive structure; 331, First lead screw; 332, First lead screw nut; 333, First bearing seat; 334, First handwheel; 335, Connecting element; 336, Clamping element; 340, Guide structure; 341, Guide rod; 342, Slider; 350, Pressure sensor;

[0041] 400, Second clamping assembly; 410, Third clamping member; 420, Fourth clamping member; 430, Second clamping drive structure; 431, Second lead screw; 432, Second lead screw nut; 440, Third clamping drive structure; 441, Third lead screw; 442, Third lead screw nut; 450, Stop; 460, Third clearance hole. Specific Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the welding mechanism or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In some descriptions of utility models, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] This application provides a transfer trolley that can be used to transfer workpieces, and a processing device can directly process the workpieces on the transfer trolley. For example, when the processing device is a welding device, the welding device welds the workpieces on the transfer trolley.

[0048] See Figure 1 and Figure 3A transfer trolley includes a mobile trolley 100, a flipping component 200, and a first clamping component 300. The flipping component 200 and the first clamping component 300 are disposed on the mobile trolley 100. The flipping component 200 is used to carry the workpiece and can drive the workpiece to flip so as to facilitate direct processing of the workpiece. The first clamping component 300 is used to clamp the workpiece on the flipping component 200.

[0049] The flipping assembly 200 includes a rotary drive structure 210 and a support base 220. The support base 220 is mounted on the moving carriage 100 and is used to support the workpiece. The support base 220 is rotatable relative to the moving carriage 100. The rotary drive structure 210 is connected to the support base 220 and is used to drive the support base 220 to rotate. It can be understood that the rotary drive structure 210 can drive the support base 220 to rotate relative to the moving carriage 100, so that the workpiece on the support base 220 can rotate, facilitating the processing of different surfaces of the workpiece.

[0050] The first clamping assembly 300 includes a first clamping member 310 and a second clamping member 320 disposed opposite to each other, and the first clamping member 310 and the second clamping member 320 can approach each other to clamp the workpiece on the support base 220. The rotary drive structure 210 is connected to the first clamping member 310 and the second clamping member 320 respectively, so that the first clamping member 310 and the second clamping member 320 can rotate synchronously with the support base 220.

[0051] During operation, the workpiece can be loaded onto the support base 220, and then the first clamping member 310 and the second clamping member 320 cooperate to clamp the workpiece onto the support base 220. Then, the workpiece clamped on the support base 220 can be transferred to the processing station by the moving trolley 100. Finally, the support base 220 can be driven to rotate by the rotation drive structure 210 to drive the workpiece to rotate, so as to facilitate the processing of the workpiece on the support base 220. For example, different sides of the workpiece can be processed.

[0052] In other words, the transfer trolley of this application is provided with a support seat 220 for supporting the workpiece, and a rotatable drive structure 210 can drive the workpiece to rotate by driving the support seat 220. Furthermore, a first clamping assembly 300 including a first clamping member 310 and a second clamping member 320 is provided on the mobile trolley 100. When the rotatable drive structure 210 drives the support seat 220 to rotate, it can be used to clamp the workpiece to the support seat 220. In this way, the workpiece can be rotated during the processing, which can realize the processing of different sides of the workpiece on the transfer trolley, without the need to unload the workpiece from the transfer trolley for processing, thereby improving the processing efficiency of the workpiece.

[0053] See Figure 1 and Figure 3In one embodiment, the rotary drive structure 210 may include a base 211 and a rotating disk 212. The bases 211 are disposed opposite to each other on the mobile trolley 100, and a rotating disk 212 is rotatably connected to each base 211. Support seats 220 are disposed between the rotating disks 212 and connected to the rotating disks 212 respectively, so that the rotating disks 212 can rotate.

[0054] Specifically, the rotating disk 212 can be rotated relative to the base 211, thereby causing the support base 220 to rotate. For example, the support base 220 can be driven to rotate by manually rotating the rotating disk 212, which is highly stable and low in cost.

[0055] Of course, in other embodiments, the rotary drive structure 210 may also use a power device such as a motor or cylinder to drive the support base 220 to rotate.

[0056] Furthermore, to improve the stability of the rotation of the rotating disk 212 and the support base 220, the rotary drive structure 210 may also include a support wheel 213. The support wheel 213 is mounted on the moving trolley 100 and can contact and slide relative to the circumferential surface of the rotating disk 212. It can be understood that the support wheel 213 can support the rotating disk 212, thereby improving the stability of its rotation.

[0057] For example, each rotating disk 212 has a support wheel 213 on both sides. The two support wheels 213 work together to support one rotating disk 212. When the rotating disk 212 rotates, it can drive the support wheel 213 to rotate. When the support wheel 213 supports the rotating disk 212, it can also avoid affecting the rotation of the rotating disk 212.

[0058] Furthermore, in one embodiment, a limiting groove 214 may be provided on the outer peripheral surface of each support wheel 213, and the rotating disk 212 contacts the limiting groove 214, which provides limiting guidance when the rotating disk 212 rotates.

[0059] See Figure 1 and Figure 4 The rotary drive structure 210 may also include a positioning pin 215, which is set on the mobile trolley 100 or the base 211. The rotating disk 212 is provided with a positioning hole 216. When the rotating disk 212 rotates to the predetermined position, the positioning pin 215 can be inserted into the positioning hole 216.

[0060] For example, the number of positioning holes 216 can be set to multiple, each positioning hole 216 can correspond to a predetermined position where a rotating disk 212 stops, and each predetermined position where the rotating disk 212 stops can correspond to a processing position of the workpiece.

[0061] Understandably, when the rotating disk 212 rotates to the predetermined position, the positioning pin 215 can be inserted into the positioning hole 216 to fix the rotating disk 212, thereby fixing the workpiece in a fixed position.

[0062] See Figure 1 and Figure 4 The first clamping assembly 300 may further include a first clamping drive structure 330, which is disposed on the base 211 and drivenly connected to the second clamping member 320 so that the second clamping member 320 can approach the first clamping member 310 in a direction parallel to the rotation axis direction of the support 220.

[0063] For example, the first clamping member 310 may be disposed at one end of the support base 220 near one of the rotating disks 212, and the second clamping member 320 may be disposed at the other end of the support base 220 near the other rotating disk 212. The first clamping drive structure 330 may drive the second clamping member 320 to move from one end of the support base 220 to the other end, so that the second clamping member 320 is close to the first clamping member 310.

[0064] In addition, the first clamping drive structure 330 is rotatable relative to the base 211. It can be understood that when the rotating disk 212 rotates, the first clamping drive structure 330 is rotatable relative to the base 211, so that the first clamping drive structure 330 can rotate with the rotating disk 212, so that the first clamping member 310 and the second clamping member 320 can maintain the state of clamping the workpiece.

[0065] Furthermore, the first clamping drive structure 330 may include a first lead screw 331 and a first lead screw nut 332 slidably disposed on the first lead screw 331. The first lead screw 331 is disposed on the base 211 and can rotate relative to the base 211. The second clamping member 320 is connected to the first lead screw nut 332.

[0066] Specifically, when the first lead screw 331 rotates, the first lead screw nut 332 can slide along the axial direction of the first lead screw 331, thereby driving the second clamping member 320 to move, allowing the second clamping member 320 to move closer to the first clamping member 310. It can be understood that the axial direction of the first lead screw 331 can be parallel to the rotation axis direction of the support base 220.

[0067] In addition, to facilitate the rotation of the first lead screw 331 relative to the base 211, a first bearing seat 333 may be provided on the base 211, and the first lead screw 331 may be connected to the first bearing shaft. For example, the first bearing shaft may include an inner ring and an outer ring that can slide relative to each other, the outer ring may be provided on the base 211, and the inner ring may be connected to the first lead screw 331.

[0068] Furthermore, in order to avoid interference between the first bearing housing 333 and the second bearing housing 218 on the base 211, the first bearing housing 333 can be mounted on the base 211 by means of a connector 335, which allows the first bearing housing 333 and the second bearing housing 218 to be coaxial.

[0069] In another embodiment, a clamping member 336 may be provided on the base 211. The clamping member 336 is used to clamp the first lead screw 331 to prevent the first lead screw 331 from continuing to rotate. For example, when the second clamping member 320 cooperates with the first clamping member 310 to clamp the workpiece, the first lead screw 331 can be fixed by the clamping member 336, so that the second clamping member 320 and the first clamping member 310 remain in a clamped state.

[0070] The clamping element 336 can be a clamping block with an opening, and the size of the opening can be adjusted to clamp or release the first lead screw 331.

[0071] See Figure 3 In one embodiment, to facilitate the rotation of the rotating disk 212 on the base 211, the rotary drive structure 210 may further include a rotating shaft 217, through which the rotating disk 212 is rotatably mounted on the base 211. Alternatively, to facilitate the rotation of the rotating shaft 217 on the base 211, a second bearing seat 218 may be provided on the base 211, with the rotating shaft 217 rotatably connected to the second bearing seat 218.

[0072] It is understandable that when the rotating disk 212 rotates, it can drive the support base 220 and the workpiece on the support base 220 to rotate. At the same time, the first clamping member 310 and the second clamping member 320 can also rotate synchronously to maintain the clamping state. When the second clamping member 320 rotates, it can drive the first lead screw 331 to rotate relative to the base 211 through the cooperation of the first lead screw nut 332 and the first lead screw 331.

[0073] Furthermore, in order to facilitate the cooperation between the first lead screw 331 and the first lead screw nut 332 to drive the second clamping member 320 to approach the first clamping member 310 in a direction parallel to the rotation axis direction of the support 220, while making the structure of the transfer trolley more compact and avoiding interference between the first lead screw 331 and the rotating shaft 217, a first clearance hole 219 can also be provided on the rotating shaft 217. The first lead screw 331 passes through the first clearance hole 219 and can rotate within the first clearance hole 219.

[0074] Furthermore, to facilitate the rotation of the first lead screw 331, a first hand crank 334 can be provided at the end of the first lead screw 331 away from the second clamping member 320. Specifically, the user can drive the first lead screw 331 to rotate via the first hand crank 334, which is cost-effective.

[0075] See Figure 4 The second clamping member 320 may also be provided with a second clearance hole 321, which is used to avoid the first lead screw 331. It can be understood that the longer the first clamping drive structure 330 drives the second clamping member 320 to move, the longer the length of the first lead screw 331 is generally. Therefore, the second clearance hole 321 provided on the second clamping member 320 can prevent the second clamping member 320 from interfering with the first lead screw 331 when it moves away from the first clamping member 310.

[0076] See Figure 4 The first clamping assembly 300 may further include a guide structure 340, which is disposed between the rotating disks 212 and connected to the rotating disks 212 respectively. The second clamping member 320 is slidably connected to the guide structure 340. It can be understood that the guide structure 340 plays a guiding role when the second clamping member 320 moves, ensuring the stability of the movement of the second clamping member 320.

[0077] In one embodiment, the guide structure 340 may include a plurality of guide rods 341, which are arranged between the rotating disks 212 along the circumferential direction of the rotating disks 212 and are respectively connected to the rotating disks 212. The second clamping member 320 is slidably disposed on each guide rod 341.

[0078] It is understood that the second clamping member 320 is slidably disposed on a plurality of guide rods 341 arranged along the circumferential direction of the rotating disk 212, which can ensure the stability of the second clamping member 320 clamping the workpiece to the first clamping member 310. For example, the second clamping member 320 can be slidably disposed on the guide rods 341 by means of sliders 342.

[0079] Furthermore, in order to prevent the first clamping member 310 and the second clamping member 320 from damaging the workpiece, a pressure sensor 350 (not shown in the figure) may also be provided on the first clamping member 310 and / or the second clamping member 320. The pressure sensor 350 detects the pressure when the first clamping member 310 and the second clamping member 320 clamp the workpiece.

[0080] See Figure 1 and Figure 5 The transfer trolley may also include a second clamping assembly 400, which includes a third clamping member 410 and a fourth clamping member 420 disposed opposite to each other on both sides of the support base 220. The third clamping member 410 and the fourth clamping member 420 can approach each other in a direction perpendicular to the clamping direction of the first clamping member 310 and the second clamping member 320 to clamp the workpiece on the support base 220.

[0081] It is understood that the first clamping member 310 and the second clamping member 320 cooperate to clamp and position the workpiece on the support base 220 in a direction parallel to the rotation axis direction of the support base 220. The third clamping member 410 and the fourth clamping member 420 cooperate to clamp and position the workpiece in a clamping direction perpendicular to the clamping direction of the first clamping member 310 and the second clamping member 320. The above method can achieve the positioning of the workpiece on the support base 220 to ensure the accuracy and stability of subsequent workpiece processing.

[0082] Furthermore, to facilitate the driving of the third clamping member 410 and the fourth clamping member 420 to clamp the workpiece on the support plate on the transfer trolley, the second clamping assembly 400 may also include a second clamping drive structure 430 and a third clamping drive structure 440. The second clamping drive structure 430 and the third clamping drive structure 440 are respectively disposed on the rotating disk 212. The second clamping drive structure 430 is driven to connect with the third clamping member 410 so that the third clamping member 410 can approach the fourth clamping member 420. The third clamping drive structure 440 is driven to connect with the fourth clamping member 420 so that the fourth clamping member 420 can approach the third clamping member 410.

[0083] In the above structure, the third clamping member 410 and the fourth clamping member 420 can be moved independently by the second clamping drive structure 430 and the third clamping drive structure 440, so that both the third clamping member 410 and the fourth clamping member 420 can move to facilitate the placement of workpieces on the support base 220. At the same time, the position of one of the third clamping member 410 or the fourth clamping member 420 can be adjusted as a positioning reference. The positioning reference can be adjusted according to the width of different workpieces. Furthermore, the second clamping drive structure 430 and the third clamping drive structure 440 are set to drive the third clamping member 410 and the fourth clamping member 420 independently, which facilitates the movement of the third clamping member 410 and the fourth clamping member 420. The drive structure is set on the rotating disk 212 to avoid interference with the related structures of the first clamping assembly 300.

[0084] Furthermore, a stop 450 may be provided on the rotating disk 212. The stop 450 is used to stop the third clamping member 410 or the fourth clamping member 420. It can be understood that when the third clamping member 410 or the fourth clamping member 420 moves to stop with the stop 450, it can be used as a positioning reference for positioning the workpiece.

[0085] In one embodiment, the two ends of the third clamping member can be connected to a second clamping drive structure 430, and the two ends of the fourth clamping member 420 can be connected to a third clamping drive structure 440. That is, the two ends of the third clamping member 410 can be driven to move by the two second clamping drive structures 430, and the two ends of the fourth clamping member 420 can be driven to move by the two third clamping drive structures 440.

[0086] Of course, in other embodiments, one end of the third clamping member can be connected to the second clamping drive structure 430, and the other end can be mounted on the rotating disk 212 via a sliding structure. One end of the fourth clamping member can be connected to the third clamping drive structure 440, and the other end can be mounted on the rotating disk 212 via a sliding structure.

[0087] Furthermore, the second clamping drive structure 430 may include a second lead screw 431, a second lead screw nut 432, and a second handwheel (not shown in the figure). The second lead screw 431 is disposed on the rotating disk 212 and can rotate relative to the rotating disk 212. The second lead screw nut 432 is slidably engaged with the second lead screw 431. The third clamping member 410 is connected to the second lead screw nut 432. The second handwheel is connected to the end of the second lead screw 431 away from the third clamping member 410.

[0088] The third clamping drive structure 440 includes a third lead screw 441, a third lead screw nut 442, and a third handwheel (not shown in the figure). The third lead screw 441 is mounted on the rotating disk 212 and can rotate relative to the rotating disk 212. The third lead screw nut 442 is slidably engaged with the third lead screw 441. The fourth clamping member 420 is connected to the third lead screw nut 442. The third handwheel is connected to the end of the third lead screw 441 away from the fourth clamping member 420.

[0089] See Figure 1 and Figure 5 In one embodiment, the third clamping member 410 and / or the fourth clamping member 420 may also be provided with a third clearance hole 460 corresponding to the welding part of the workpiece.

[0090] It is understandable that a processing device, such as a welding device, can weld the welding part of the workpiece through the third clearance hole 460.

[0091] This application also provides a welding mechanism, including a welding device and a transfer trolley as described in the embodiments of this application. The welding device is disposed on the movement path of the transfer trolley and is used to weld the workpiece on the transfer trolley.

[0092] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of some utility models should be included within the protection scope of some utility models.

Claims

1. A transfer cart, characterized by, The utility model relates to a kind of rotating device, including: Mobile trolley; Turnover assembly, including rotating drive structure and support seat, the support seat is arranged on the mobile trolley, for supporting workpiece, and the support seat can be rotated relative to the mobile trolley, the rotating drive structure is connected with the support seat, to drive the support seat rotation; First clamping assembly, including oppositely arranged first clamping piece and second clamping piece, and the first clamping piece and second clamping piece can be close to each other, to clamp the workpiece on the support seat, the rotating drive structure is connected with the first clamping piece and second clamping piece respectively, to make the first clamping piece and second clamping piece can be rotated with the support seat synchronously.

2. The transfer cart of claim 1, wherein, The rotating drive structure includes base and rotating disc, the base is oppositely arranged on the mobile trolley, each base is respectively rotated with the rotating disc, the support seat is arranged between the rotating disc and is connected with the rotating disc, to rotate with the rotating disc.

3. The transfer cart of claim 2, wherein, The rotating drive structure further includes support wheel, and the support wheel is arranged on the mobile trolley, and the support wheel can be in contact with the circumferential surface of the rotating disc and can slide relative to the circumferential surface of the rotating disc; The outer circumferential surface of each support wheel is provided with a limiting groove, and the rotating disc is in contact with the limiting groove.

4. The transfer cart of claim 2, wherein, The rotating drive structure further includes a positioning pin, and the positioning pin is arranged on the mobile trolley or the base. The rotating disc is provided with a positioning hole. When the rotating disc is rotated to a predetermined position, the positioning pin can be inserted into the positioning hole.

5. The transfer cart of any one of claims 2 to 4, wherein, The first clamping assembly further includes a first clamping drive structure, and the first clamping drive structure is arranged on the base and is drivingly connected with the second clamping piece, so that the second clamping piece can move towards the first clamping piece in a direction parallel to the rotation axis of the support seat. The first clamping drive structure can rotate relative to the base. The first clamping drive structure includes a first lead screw and a first lead screw nut slidingly arranged on the first lead screw. The first lead screw is arranged on the base and can rotate relative to the base. The second clamping piece is connected with the first lead screw nut.

6. The transfer cart of claim 5, wherein, The rotating drive structure further includes a rotating shaft, and the rotating disc is rotatably arranged on the base through the rotating shaft.

7. The transfer cart of claim 6, wherein, The rotating shaft is provided with a first avoiding hole, and the first lead screw passes through the first avoiding hole and can rotate in the first avoiding hole. The end of the first lead screw away from the second clamping piece is provided with a first hand wheel. The base is provided with a clamping piece, and the clamping piece is used to clamp the first lead screw. The second clamping piece is provided with a second avoiding hole, and the second avoiding hole is used to avoid the first lead screw.

8. The transfer cart of claim 7, wherein, The first clamping assembly further includes a guide structure, and the guide structure is arranged between the rotating discs and is connected to the rotating discs. The second clamping piece is slidingly connected with the guide structure.

9. The transfer cart of claim 5, wherein, The guide structure includes a plurality of guide rods, and the guide rods are arranged between the rotating discs along the circumferential direction of the rotating discs and are connected to the rotating discs. The second clamping piece is slidingly arranged on each guide rod.

10. The transfer cart of claim 9, wherein, ​ 11. The transfer cart of any one of claims 1 to 4, wherein, The first clamping member and / or the second clamping member is provided with a pressure sensor.

12. The transfer cart of any one of claims 2 to 4, wherein, The second clamping assembly further comprises a second clamping driving structure and a third clamping driving structure, the second clamping driving structure and the third clamping driving structure are respectively arranged on the rotating disc, the second clamping driving structure is drivingly connected with the third clamping member to enable the third clamping member to approach the fourth clamping member, and the third clamping driving structure is drivingly connected with the fourth clamping member to enable the fourth clamping member to approach the third clamping member.

13. The transfer cart of claim 12, wherein, The rotating disc is further provided with a stopper for stopping the third clamping member or the fourth clamping member. The second clamping driving structure comprises a second screw rod, a second screw rod nut and a second hand wheel, the second screw rod is arranged on the rotating disc and can rotate relative to the rotating disc, the second screw rod nut is in sliding fit with the second screw rod, the third clamping member is connected with the second screw rod nut, and the second hand wheel is connected with one end of the second screw rod away from the third clamping member.

14. The transfer cart of claim 13, wherein, The third clamping driving structure comprises a third screw rod, a third screw rod nut and a third hand wheel, the third screw rod is arranged on the rotating disc and can rotate relative to the rotating disc, the third screw rod nut is in sliding fit with the third screw rod, the fourth clamping member is connected with the third screw rod nut, and the third hand wheel is connected with one end of the third screw rod away from the fourth clamping member. The third clamping member and / or the fourth clamping member is respectively provided with a third avoiding hole corresponding to a welding position of the workpiece.

15. The transfer cart of claim 12, wherein, The welding device is arranged on a moving path of the transfer trolley, and the welding device is used for welding the workpiece on the transfer trolley.

16. A welding mechanism characterized by, ​

Images