Feeding mechanism and welding device

Abstract

The utility model provides a feeding mechanism and a welding device, and relates to the technical field of battery processing. The feeding mechanism comprises a base and a rotating disc rotationally connected with the base; the at least one clamp is arranged on the peripheral side of the turntable and is used for clamping a workpiece; and the jacking assemblies are arranged on the base, and the jacking assemblies are configured to drive part of the clamps to move when the rotating disc rotates to enable the clamps to move to the jacking positions so that the clamps can convey the workpieces to the machining positions, and therefore the workpieces can be rapidly shifted and jacked on the rotating disc, and the workpiece carrying procedure is simplified.

Description

TECHNICAL FIELD

[0001] The application relates to a battery processing technology, in particular to a feeding mechanism and a welding device. BACKGROUND

[0002] During production of a lithium battery, a tab needs to be welded on a cover plate to realize the function of current conduction.

[0003] At present, when welding a tab and a cover plate, a rotating disc is generally arranged as an intermediate buffer area for cover plate conveying. Specifically, before welding the tab on the cover plate, the cover plate is first conveyed to the rotating disc, and then the rotating disc is rotated to send the cover plate to a position opposite to the tab, and then the cover plate is moved upward to contact the tab for welding through a clamping jaw or the like. This makes the cover plate conveying in the whole welding process more complex, more components are used, and the working efficiency is also low. CONTENT OF THE UTILITY MODEL

[0004] The application provides a feeding mechanism and a welding device to improve the cover plate conveying efficiency.

[0005] In one aspect, the application provides a feeding mechanism, which comprises a base;

[0006] a rotating disc connected with the base in rotation;

[0007] at least one clamp arranged on the side of the rotating disc, the clamp being used for clamping a workpiece;

[0008] at least one lifting assembly arranged on the base, the lifting assembly being configured to drive part of the clamp to move when the rotating disc rotates to move the clamp to a lifting position, so that the clamp sends the workpiece to a processing position.

[0009] In some possible embodiments of the application, at least one clamp opening assembly is further included and is correspondingly arranged on the lifting assembly, the clamp opening assembly being configured to drive the clamp to release the workpiece after the clamp stays in the processing position for a preset time.

[0010] In some possible embodiments of the application, the clamp comprises:

[0011] a first connecting piece connected with the rotating disc;

[0012] a second connecting piece in sliding connection with the first connecting piece;

[0013] a pneumatic clamping jaw arranged on the second connecting piece, the pneumatic clamping jaw being used for clamping the workpiece;

[0014] A control valve is arranged on the second connecting member and is configured to connect the open-clamping air inlet of the pneumatic clamping jaw to the air supply device. When the open-clamping assembly is driven to open, the control valve is configured to allow gas to enter the pneumatic clamping jaw, so that the pneumatic clamping jaw loosens the workpiece.

[0015] In some possible embodiments of the present application, at least one pressure reducing valve is arranged to connect the air supply device to the close-clamping air inlet of at least one of the pneumatic clamping jaws. The pressure reducing valve is configured to control the amount of gas entering the pneumatic clamping jaw through the close-clamping air inlet, so as to adjust the clamping force applied by the pneumatic clamping jaw to the workpiece.

[0016] In some possible embodiments of the present application, a rotary joint is arranged on the base and is rotatably connected to the base. The rotary joint is configured to connect the air supply device. The rotary joint is further connected to the pressure reducing valve and the control valve through pipelines.

[0017] In some possible embodiments of the present application, one of the first connecting member and the second connecting member is provided with a guide portion, and the other is provided with a limiting portion that is slidably connected to the guide portion.

[0018] In some possible embodiments of the present application, the clamp further comprises a reset member that is connected to the first connecting member and the second connecting member. The reset member is configured to apply a driving force to the second connecting member to move the second connecting member away from the machining position after the pneumatic clamping jaw loosens the workpiece.

[0019] In some possible embodiments of the present application, the reset member is an elastic member.

[0020] In some possible embodiments of the present application, the first connecting member is provided with a positioning member. The positioning member is configured to contact the second connecting member when the reset member drives the second connecting member to move to the maximum distance, so as to limit the position of the second connecting member.

[0021] In some possible embodiments of the present application, the lifting assembly comprises:

[0022] a first driving member connected to the base;

[0023] a first transmission member connected to the output end of the first driving member. The open-clamping assembly is arranged on the first transmission member. The first transmission member is configured to be driven by the first driving member to push the clamp to move when the clamp moves to the lifting position.

[0024] In some possible embodiments of the present application, the open-clamping assembly comprises:

[0025] The second driving member is connected with the first transmission member;

[0026] The second transmission member is connected with the output end of the second driving member, and is configured to be in contact with the control valve under the driving of the second driving member, so as to open the control valve.

[0027] In some possible embodiments of the present application, a third driving member is arranged on the base, and the third driving member is connected with the rotating disc, and is configured to drive the rotating disc to rotate, so as to move the clamp to the jacking position.

[0028] In another aspect, the present application provides a welding device comprising the welding device of any one of the first aspect.

[0029] In the feeding mechanism and the welding device provided by the present application, the feeding mechanism is provided with a base, a rotating disc, at least one clamp and at least one jacking assembly. The clamp is arranged on the periphery of the rotating disc. When the rotating disc rotates relative to the base, the clamp can be moved to a jacking position. The jacking assembly is arranged at the jacking position and connected with the base. When the clamp is moved to the jacking position, part of the clamp can be directly driven to move upward, so that the workpiece, such as a cover plate, clamped by the clamp can reach a processing position for welding with a tab. At this time, the cover plate and the tab can be directly welded, without the need to first place the cover plate on the rotating disc for transfer, and then move the cover plate to the processing position by another clamp. The feeding efficiency of the cover plate can be effectively improved, and the welding processing efficiency of the tab and the cover plate can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] Figure 1 A perspective view of the feeding mechanism provided by the embodiment of the present application;

[0032] Figure 2 A side view of the feeding mechanism provided by the embodiment of the present application;

[0033] Figure 3 A top view of the feeding mechanism provided by the embodiment of the present application;

[0034] Figure 4 A perspective view of the clamp in the feeding mechanism provided by the embodiment of the present application;

[0035] Figure 5 A side view of the feeding mechanism provided by the embodiment of the present application;

[0036] Figure 6A plan view of the feeding mechanism provided by the embodiment of the present application;

[0037] Figure 7 A partial structural schematic view of the feeding mechanism provided by the embodiment of the present application;

[0038] Figure 8 A connection structural schematic view of the pneumatic clamping jaw, pressure reducing valve and control valve in the feeding mechanism provided by the embodiment of the present application.

[0039] Explanation of reference signs:

[0040] 100 - base; 110 - rotary joint;

[0041] 200 - rotary disc;

[0042] 300 - clamp; 310 - first connecting piece; 311 - L-shaped connecting block; 312 - first connecting plate; 313 - positioning piece; 320 - second connecting piece; 321 - second connecting plate; 322 - third connecting plate; 323 - guide portion; 324 - fourth connecting plate; 330 - pneumatic clamping jaw; 331 - open-clamping air inlet; 332 - close-clamping air inlet; 340 - control valve; 350 - reset piece;

[0043] 400 - jacking assembly; 410 - first driving piece; 420 - first transmission piece; 421 - fifth connecting plate; 422 - sixth connecting plate; 423 - jacking portion;

[0044] 500 - open-clamping assembly; 510 - second driving piece; 520 - second transmission piece;

[0045] 600 - pressure reducing valve;

[0046] 700 - third driving piece.

[0047] The specific embodiments of the present application have been shown through the above-described drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar components. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0049] At present, when welding the tab and the cover plate, a turntable is generally arranged as an intermediate buffer area for cover plate conveying. Specifically, before welding the tab on the cover plate, the cover plate is conveyed to the turntable first, and then the turntable is rotated to send the cover plate to a position opposite to the tab, and then the cover plate is moved upward to contact the tab for welding through a gripper or the like mechanism. This makes the cover plate conveying in the whole welding process more complex, more components are used, and the work efficiency is also lower.

[0050] Meanwhile, when the cover plate is clamped by the gripper, the clamping force is mainly provided by the spring, so that the size of the clamping force is not easy to adjust, and the clamping force cannot be automatically adjusted according to different clamped cover plates, and the adaptability is poor.

[0051] In order to avoid the above problems, the embodiment of the present application provides a feeding mechanism and a welding device. The feeding mechanism can lift the clamp clamping the workpiece through the lifting assembly, so that the clamp sends the workpiece to the machining position for machining, without the need for multiple transfer, improving the efficiency of workpiece conveying, simplifying the structure of workpiece conveying, and at the same time, after the workpiece is machined at the machining position, the clamp can be opened directly by the opening clamp assembly, so that the clamp releases the workpiece, further improving the convenience of using the feeding mechanism.

[0052] It can be understood that the feeding mechanism in the embodiment of the present application can not only be used for conveying the cover plate to move to the position for welding with the tab, but also be applicable to the conveying of other workpieces with similar requirements. Only for the convenience of understanding, the cover plate is taken as an example for description, but the use range of the feeding mechanism is not limited.

[0053] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail in the following specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0054] In some embodiments of the present application, as shown in Figure 1 , Figure 2 and Figure 3 , the feeding mechanism comprises a base 100, a turntable 200, a clamp 300 and a lifting assembly 400.

[0055] The turntable 200 is rotatably connected with the base 100. Here, the rotatable connection does not mean that the base 100 and the turntable 200 must be in direct contact. It only means that the turntable 200 can rotate relative to the base 100, and they can not be in direct contact but indirectly contact through other components. The present embodiment does not limit this.

[0056] The clamps 300 and the jacking assemblies 400 are each provided at least one, the clamps 300 are arranged on the circumferential side of the rotary table 200, the clamps 300 are used to clamp the workpiece, the jacking assemblies 400 are arranged on the base 100, when the rotary table 200 rotates to drive the clamps 300 to rotate synchronously, the jacking assemblies 400 drive part of the clamps 300 to move, so that the clamps 300 send the workpiece to the machining position. Specifically, the clamps 300 need to move with the rotary table 200, so they need to be connected with the rotary table 200, and the part of the clamps 300 connected with the rotary table 200 does not move in the Z direction with the jacking of the jacking assemblies 400, only the part clamping the workpiece can move in the Z direction with the jacking of the jacking assemblies 400.

[0057] It can be understood that the clamps 300 can be provided one or more, which can be determined according to the machining requirement, and when multiple clamps 300 are provided, they can be arranged in sequence around the circumferential side of the rotary table 200.

[0058] Exemplarily, the clamps 300 are provided four, which are uniformly arranged around the circumferential side of the rotary table 200, and the rotary table 200 rotates by a corresponding angle each time, so that the corresponding clamps 300 are sent to the jacking position of the jacking assemblies 400, and the jacking assemblies 400 jacks them to send the workpiece to the machining position for machining.

[0059] It can be understood that the number of the jacking assemblies 400 can also be determined according to the actual situation, for example, when the clamps 300 are provided one or two, or the machining cycle is slow, only one jacking assembly 400 can be provided, so that the clamps 300 clamping the workpiece alternately reach the jacking position and are driven to move by the jacking assemblies 400.

[0060] When the clamps 300 are provided multiple, the number of the jacking assemblies 400 can be increased correspondingly, so that they can match the speed of the clamps 300 to cooperate with the clamps 300 for machining.

[0061] The rotation of the rotary table 200 can be driven manually or by a special device.

[0062] Exemplarily, the base 100 is provided with a third driving member 700, the output end of the third driving member 700 is connected with the rotary table 200, and the rotary table 200 can be driven to rotate, so that the rotary table 200 drives the clamps 300 to move to the jacking position.

[0063] The third driving member 700 can be a motor or an electric machine, as long as it can drive the rotary table 200 to rotate, which is not limited in the embodiment.

[0064] Taking the welding of the cover plate and the tab as an example, the conventional structure for carrying the cover plate is that the cover plate is first placed on the turntable 200 by a clamping piece, then the turntable 200 as an intermediate buffer area is rotated to the corresponding position, and then another clamping piece carries the cover plate to the processing position for welding with the tab. The cover plate needs to go through multiple steps to reach the final position, and the carrying is relatively cumbersome.

[0065] In the embodiment, the clamp 300 on the turntable 200 can directly clamp the cover plate, and the clamp angle is sent to the jacking position by rotating the turntable 200, and then the clamp 300 is jacked to the processing position by the jacking assembly 400 for processing. In this process, the clamp 300 does not need to be replaced for transfer, which can greatly improve the carrying efficiency of the cover plate and the processing efficiency of the battery.

[0066] In some embodiments of the present application, the feeding mechanism further comprises at least one clamping opening assembly 500, which corresponds to the jacking assembly 400 one by one, and the clamping opening assembly 500 is arranged on the jacking assembly 400. After the clamp 300 stays in the processing position for a preset time, the clamping opening assembly 500 is started to drive the clamp 300 to release the workpiece, so that the jacking assembly 400 can drive the clamp 300 to return to the jacking position, and then the clamp 300 is sent to the initial position by rotating the turntable 200 for carrying the workpiece next time. The preset time is the time required for completing the processing after the workpiece reaches the processing position, which can be set according to the processing requirement of the workpiece.

[0067] After the clamping opening assembly 500 is arranged, the clamping opening assembly 500 can directly drive the clamp 300 to release the workpiece after the processing is completed, which further improves the convenience of use.

[0068] In some embodiments of the present application, please refer to Figure 4 、 Figure 5 and Figure 6 The clamp 300 comprises a first connecting piece 310, a second connecting piece 320 and a pneumatic clamp jaw 330.

[0069] The pneumatic clamp jaw can be a parallel pneumatic jaw, which is composed of two or more jaw fingers. These jaw fingers can move synchronously under the action of the air cylinder to clamp or release the workpiece. Specifically, please refer to Figure 8As shown, the pneumatic clamping jaw 330 mainly controls the clamping jaw movement through gas, thereby realizing the opening and closing of the clamping jaw. The pneumatic clamping jaw 330 is provided with an opening air inlet 331 and a closing air inlet 332, which are similar to the structure of a cylinder. The claw fingers can move along the piston cylinder, and the claw fingers divide the piston cylinder into a closing side and an opening side. The closing air inlet 332 is connected to the closing side, and the opening air inlet 331 is connected to the opening side. When the air pressure of the closing side is greater than that of the opening side by introducing air into the closing air inlet 332, the clamping jaw is closed. Conversely, if the air pressure of the opening side is greater than that of the closing side, the pneumatic clamping jaw 330 is opened, and the workpiece is released. Therefore, by controlling the air intake, the opening and closing of the pneumatic clamping jaw 330 and the clamping force can be controlled, so that it can adapt to the clamping needs of different workpieces.

[0070] The first connecting piece 310 is connected to the turntable 200, and the second connecting piece 320 is in sliding connection with the first connecting piece 310. The pneumatic clamping jaw 330 is arranged on the second connecting piece 320. In the jacking position, the jacking assembly 400 mainly contacts the second connecting piece 320 and pushes the second connecting piece 320 to move, thereby driving the pneumatic clamping jaw 330 and the workpiece clamped thereby to move upward synchronously.

[0071] Exemplarily, the first connecting piece 310 includes an L-shaped connecting block 311, which can be arranged side by side in one or more, and the specific number is determined according to the support requirements. The L-shaped connecting block 311 has a horizontal plate and a vertical plate perpendicular to each other. The horizontal plate is used to be placed on the surface of the turntable 200 and is connected to the surface of the turntable 200 by means of common connection methods such as bolting or welding. The vertical plate extends along the Z direction. The first connecting piece 310 is connected to the vertical plate and can slide relative to the vertical plate.

[0072] Among them, the second connecting piece 320 needs to move a long distance in the Z direction relative to the first connecting piece 310. In order to reduce the processing difficulty, the first connecting piece 310 can further include a first connecting plate 312. The first connecting plate 312 is connected to the vertical plate, and the second connecting piece 320 is in sliding connection with the vertical plate. Therefore, the first connecting piece 310 can support the second connecting piece 320 and the starting clamping jaw, and will not affect the driving of the jacking assembly 400 to move the second connecting piece 320 in the Z direction.

[0073] Exemplarily, the second connecting piece 320 includes a second connecting plate 321 and a third connecting plate 322. The third connecting plate 322 extends along the Z direction and can be in sliding connection with the first connecting plate 312. The second connecting plate 321 is fixed on the third connecting plate 322 and is used to support the pneumatic clamping jaw 330. The jacking assembly 400 can contact the second connecting plate 321 or the third connecting plate 322 to jack up the second connecting piece 320 and the pneumatic clamping jaw 330. This embodiment does not limit it here.

[0074] It can be understood that the first connecting member 310 and the second connecting member 320 can also be other structures as long as they are in sliding connection and the second connecting member 320 can support the pneumatic clamping jaw 330, which is not limited herein.

[0075] In some embodiments of the present application, a guide portion 323 is arranged on one of the first connecting member 310 and the second connecting member 320, and a limiting portion is arranged on the other one in sliding connection with the guide portion 323.

[0076] Exemplarily, the guide portion 323 is arranged on the second connecting member 320, and the limiting portion is arranged on the first connecting member 310.

[0077] Specifically, the guide portion 323 can be a guide rail arranged on the third connecting plate 322 and extending along the Z direction, and the limiting portion can be a limiting block connected with the guide rail, so that when the second connecting member 320 is driven to move by the jacking assembly 400, the guide rail moves relative to the limiting block, and because the guide rail and the limiting block are limited in shape, the guide rail can only move relative to the limiting block along the Z direction and cannot be inclined.

[0078] It can be understood that this is only an example of the structure of the guide portion 323 and the limiting portion, and is not a limitation, and other common structures for guiding can also be applied herein.

[0079] In some embodiments of the present application, the clamp 300 further comprises a control valve 340 arranged on the second connecting member 320 and connected with the opening clamping air inlet 331 of the pneumatic clamping jaw 330, and the control valve 340 is also used to be connected with a gas supply device for supplying gas, and when the control valve 340 is driven to open by the opening clamping assembly 500, the gas enters the pneumatic clamping jaw 330 to release the workpiece.

[0080] Specifically, the control valve 340 can be a manual three-way valve, the rotary joint 110 is connected with the gas supply device through a main gas path, and the gas passing through the rotary joint 110 is divided into two paths, one of which is connected with the closing clamping air inlet 332 of the pneumatic clamping jaw 330, and the other of which is connected with the P port of the control valve 340, and the A port of the control valve 340 is connected with the opening clamping air inlet 331 of the pneumatic clamping jaw 330, so as long as the main gas path is in communication with the gas supply device, the pneumatic clamping jaw 330 is always in a closing clamping state.

[0081] When the opening clamping assembly 500 contacts the manual three-way valve, the manual three-way valve is pushed to open and communicate the opening clamping air inlet 331 with the gas supply device, so that the gas enters the opening side of the pneumatic clamping jaw 330, the pressure of the opening side is increased, and thus the pneumatic clamping jaw 330 releases the workpiece.

[0082] This makes the opening of the clamp 300 can be carried out in a mechanical way, simple structure, and convenient control, very convenient to use.

[0083] In some embodiments of the present application, the feeding mechanism further comprises at least one pressure reducing valve 600, the pressure reducing valve 600 is used to connect the gas supply device, the pressure reducing valve 600 is connected to the closing air inlet 332 of the at least one pneumatic clamp jaw 330, and the pressure reducing valve 600 can control the amount of gas entering the pneumatic clamp jaw 330 through the closing air inlet 332 to adjust the clamping force of the pneumatic clamp jaw 330 on the workpiece, so that the pneumatic clamp jaw 330 can adapt to different workpieces.

[0084] Wherein, the pressure reducing valve 600 mainly changes the cross-sectional area of the fluid passage through the movement of the valve core, so as to adjust the flow and pressure of the fluid, such as direct acting pressure reducing valve 600, pilot operated pressure reducing valve 600 and proportional pressure reducing valve 600, etc., which are all components familiar to those skilled in the art, and the present embodiment does not limit them here.

[0085] The pressure reducing valve 600 is located between the rotary joint 110 and the closing air inlet 332, and can adjust the clamping force of the pneumatic clamp jaw 330 to adapt to the clamping requirements of the workpiece.

[0086] Exemplarily, when the plurality of clamps 300 are provided on the turntable 200 and the clamps 300 clamp the same workpiece, the clamping force of the pneumatic clamp jaw 330 is also the same, at this time, all clamps 300 can be connected with the gas supply device through the same pressure reducing valve 600, so that the clamping force of all clamps 300 is directly controlled by one pressure reducing valve 600, thereby reducing the number of pressure reducing valves 600, which can not only reduce the adjustment difficulty, but also help to save costs.

[0087] Exemplarily, when the plurality of clamps 300 are provided on the turntable 200, and each clamp 300 clamps different workpieces and needs different clamping force, then a pressure reducing valve 600 can be provided for each pneumatic clamp jaw 330 respectively, so as to accurately control the clamping force of each pneumatic clamp jaw 330 to adapt to the workpiece.

[0088] In actual use, the clamp 300 needs to rotate with the turntable 200, in order to avoid the pipeline connected with the gas supply device from winding and affecting use, the present embodiment is provided with a rotary joint 110 on the base 100, the rotary joint 110 is rotatably connected with the base 100, the rotary joint 110 is used to connect the gas supply device, and the rotary joint 110 is further connected with the pressure reducing valve 600 and the control valve 340 through the pipeline.

[0089] Exemplarily, the rotary joint 110 is fixed in the middle of the base 100 away from the rotary disc 200, for example, by a connecting plate installed in the middle of the base 100, and then the pipeline extends through the base 100 and the rotary disc 200 to the outside of the rotary disc 200, while the pressure reducing valve 600 is fixed in the middle of the rotary disc 200 and connected with the rotary joint 110, and the control valve 340 is arranged on each clamp 300 and connected with the rotary joint 110 through the pipeline.

[0090] In some embodiments of the present application, the jacking assembly 400 comprises a first driving member 410 and a first transmission member 420.

[0091] The first driving member 410 is connected with the base 100 and supported and positioned by the base 100, the first transmission member 420 is connected with the output end of the first driving member 410, the clamping opening assembly 500 is arranged on the first transmission member 420, and the first transmission member 420 is driven by the first driving member 410 to push the clamp 300 to move when the clamp 300 moves to the jacking position.

[0092] It can be understood that the first driving member 410 can be a common telescopic driving device such as a pneumatic cylinder or an electric cylinder, as long as it can push the first transmission member 420 to move, which is not limited in the present embodiment.

[0093] Specifically, when the clamp 300 reaches the jacking position, the first transmission member 420 contacts with the second connecting member 320 to push the second connecting member 320 to move upward, so that the pneumatic clamping jaw 330 sends the workpiece to the machining position, and the first transmission member 420 only needs to contact with the second connecting member 320, without the need for connection, so as not to affect the rotation of the clamp 300 with the rotary disc 200.

[0094] Exemplarily, the first transmission member 420 can be a special-shaped plate, one part of which is used for installing the clamping opening assembly 500, and the other part is used for contacting with the second connecting member 320 to jack up the second connecting member 320.

[0095] Exemplarily, in order to facilitate machining, the first transmission member 420 comprises a fifth connecting plate 421 and a sixth connecting plate 422, the fifth connecting plate 421 is connected with the first driving member 410 and can be arranged in an L shape, one part of which is used for extending above the first driving member 410 to be connected with the first driving member 410, and the other part extends along the Z direction to be connected with the sixth connecting plate 422, the fifth connecting plate 421 and the sixth connecting plate 422 can be connected by common connection methods such as bolts or welding, such a connection method can increase the contact surface between the sixth connecting plate 422 and the fifth connecting plate 421 to improve the supporting effect, and at the same time, the first driving member 410 is divided into the fifth connecting plate 421 and the second connecting plate 321, which can also reduce the machining difficulty.

[0096] Meanwhile, the opening and clamping assembly 500 can also be arranged on the fifth connecting plate 421 at a portion for connecting with the first driving member 410, and located on a side away from the first driving member 410, so that the opening and clamping assembly 500 can move with the first transmission member 420, facilitating the control of the pneumatic clamping jaw 330 to release the workpiece, and meanwhile, the opening and clamping assembly 500 will not interfere with the sixth connecting plate 422 to lift the pneumatic clamping jaw 330.

[0097] In addition, the lifting portion 423 can also be arranged on the top of the sixth connecting plate 422, and the lifting portion 423 can be in contact with the second connecting member 320, and the lifting portion 423 can be provided with a limiting member such as a pin shaft, and the second connecting member 320 can be provided with a hole or a groove structure at a corresponding position, so as to facilitate the positioning of the lifting portion 423 when the lifting portion 423 is lifted to be in contact with the second connecting member 320 and pushes the second connecting member 320 to move.

[0098] It can be understood that when the lifting mechanism does not push the clamp 300 to move and is in an initial position, the lifting portion 423 is below the second connecting member 320 and keeps a certain distance from the second connecting member 320, and when lifting, the lifting portion 423 gradually contacts the second connecting member 320 and pushes the second connecting member 320 to move under the driving of the first driving member 410.

[0099] Exemplarily, as shown in Figure 5 the second connecting plate 321 can extend along the vertical Z direction, and the fourth connecting plate 324 can be arranged on a side of the second connecting plate 321 away from the pneumatic clamping jaw 330, the fourth connecting plate 324 can be in contact with the lifting portion 423, and the fourth connecting plate 324 can be provided with a groove or a hole structure to cooperate with the lifting portion 423.

[0100] In some embodiments of the present application, the opening and clamping assembly 500 comprises a second driving member 510 and a second transmission member 520.

[0101] The second driving member 510 is connected with the first transmission member 420, and the second transmission member 520 is connected with an output end of the second driving member 510, the second transmission member 520 can be driven by the second driving member 510 to contact the control valve 340, so as to open the control valve 340.

[0102] Specifically, the second driving member 510 can be a common telescopic driving device such as a pneumatic cylinder or an electric cylinder, as long as it can push the first driving member 410 to move, and the present embodiment does not limit it here.

[0103] The second transmission member 520 can be arranged as a transmission block or other structures, as long as it can be driven by the second driving member 510 to move along the Z direction by a certain distance to contact a corresponding position of the control valve 340, so as to drive the control valve 340 to communicate with the air supply device and the opening and clamping air inlet 331, and the present embodiment does not limit it here.

[0104] In order to facilitate control and save space, the control valve 340 can be arranged on one side of the fourth connecting plate 324, and the second transmission member 520 and the second driving member 510 can also be arranged on one side of the sixth connecting plate 422.

[0105] In addition, in order to avoid interference between the jacking part 423 and the second transmission member 520 and the control valve 340, the second transmission member 520 can have a certain height difference with the jacking part 423 in the Z direction when in the initial position, and the control valve 340 and the fourth connecting plate 324 also have a height difference adapted thereto.

[0106] Since the jacking assembly 400 is not connected with the fourth connecting plate 324, but only contacts to jack up, when resetting after machining is completed, the second connecting member 320 and the pneumatic clamping jaw 330 can only rely on gravity to move downward to reset, which can be slow.

[0107] To this end, the clamp 300 further includes a resetting member 350 connected with the first connecting member 310 and the second connecting member 320 respectively, after the pneumatic clamping jaw 330 releases the workpiece, the resetting member 350 applies a driving force to the second connecting member 320 to move the second connecting member 320 away from the machining position to reset.

[0108] Exemplarily, the resetting member 350 is an elastic member such as a spring or a spring sheet, one end of which is connected with the first connecting member 310 and the other end of which is connected with the second connecting member 320. When the jacking mechanism jacks up the second connecting member 320 to move it upward, the elastic member is stretched to accumulate potential energy, and when the second connecting member 320 and the pneumatic clamping jaw 330 reset at the end of machining, the elastic member releases the elastic potential energy to pull the second connecting member 320 to move, thereby assisting the resetting effect.

[0109] Further, the upper end of the elastic member can be connected with the upper end of the first connecting member 310, and the lower end of the elastic member can be connected with the lower end of the second elastic member, and when the elastic member is in a free state, the connection point of the elastic member with the first connecting member 310 is located above the connection point of the elastic member with the second connecting member 320 in the Z direction, thereby facilitating the arrangement of the elastic member and improving the resetting effect.

[0110] It can be understood that the resetting member 350 can also be other members that can have a resetting effect, which is not limited in the present embodiment.

[0111] Further, in order to limit the maximum moving position of the second connecting member 320 relative to the first connecting member 310, the first connecting member 310 is provided with a positioning member 313, which is in contact with the second connecting member 320 when the reset member 350 drives the second connecting member 320 to move to the maximum distance, so as to limit the position of the second connecting member 320.

[0112] Specifically, the jacking assembly 400 is mainly used to drive the second connecting member 320 to move up and down. Under the action of gravity, the second connecting member 320 is not easy to automatically move up, but has a downward trend. The positioning member 313 is arranged below the position where the second connecting member 320 is in contact with the first connecting member 310, so that the second connecting member 320 can be assisted by the positioning member 313 to be positioned and supported, and the second connecting member 320 is prevented from moving downward by too much distance.

[0113] Illustratively, the positioning member 313 can be at least one bolt, and an installation portion is arranged at the bottom of the first connecting plate 312. The bolt is fixed on the installation portion, and the nut on the upper end of the bolt can be used to abut against the second connecting member 320. In addition, the length of the bolt extending out of the installation portion towards the side close to the second connecting member 320 can be adjusted to adjust the stroke of the second connecting member 320.

[0114] It can be understood that the positioning member 313 can also be other components, as long as it can abut against the second connecting member 320 to limit the position of the second connecting member 320.

[0115] When the feeding mechanism is working, the third driving member 700 drives the rotating disc 200 to rotate, so that the corresponding clamp 300 reaches the jacking position, the first driving member 410 drives the first transmission member 420 and the opening clamp assembly 500 to move along the Z direction, after the jacking part 423 contacts with the bottom of the fourth connecting plate 324, the second connecting member 320 is pushed to rise to the machining position, waits for a preset time at the machining position, after the machining is completed, the second driving member 510 drives the second transmission member 520 to rise to contact the control valve 340, so that the control valve 340 is opened, the gas enters from the opening clamp gas inlet 331, so that the pressure of the opening clamp side is greater than that of the closing clamp side, so that the pneumatic clamp jaw 330 is opened, at this time, the first driving member drives the first transmission member to move reversely, the second connecting member 320 moves reversely together with the first transmission member 420 under the action of the gravity and the reset member 350, in this process, the second transmission member 520 is always in contact with the control valve 340, and the pneumatic clamp jaw 330 is always in the opening state, when the second connecting member 320 moves to contact the positioning member 313, the second connecting member returns to the jacking position, at this time, the first driving member 410 continues to move, so that the second transmission member 520 is separated from the control valve 340, at this time, the pneumatic clamp jaw 330 is automatically closed, and the jacking assembly 400 and the opening clamp assembly 500 are reset in sequence, so that when the reset is performed after the machining is completed, the pneumatic clamp jaw 330 is kept in the opening state in the front part of the stroke of the first driving member 410, and is kept in the closing state in the rear part of the stroke of the first driving member 410, so that the action beat is effectively saved, and the clamp 300 rising and falling and the opening and closing of the clamp are controlled by the external mechanism, the rotating disc 200 is a pure mechanical mechanism, and the structure is simple and reliable.

[0116] The embodiment of the application further provides a welding device, which comprises the feeding mechanism in the above embodiment, and the feeding mechanism can carry the cover plate between the feeding position and the machining position, so that the cover plate reaches the welding position and is welded with the tab.

[0117] It can be understood that the welding device can be a welding device for various workpieces, and the welding device for the tab cover plate used in the battery is taken as an example, which further comprises other devices for clamping the tab and welding, and the like, which are all known by those skilled in the art, and the embodiment will not be described here.

[0118] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0119] It is to be understood that the application is not limited to the precise construction already described above and shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should only be limited by the claims appended hereto.

Claims

1. A feeding mechanism, characterized by, The utility model relates to a workpiece processing device, comprising: a base (100); a rotating disc (200) rotatably connected to the base (100); at least one clamp (300) arranged on the periphery of the rotating disc (200), the clamp (300) being used to clamp a workpiece; at least one lifting assembly (400) arranged on the base (100), the lifting assembly (400) being configured to drive part of the clamp (300) to move when the rotating disc (200) rotates to move the clamp (300) to a lifting position, so that the clamp (300) sends the workpiece to a processing position.

2. The feeding mechanism according to claim 1, wherein The utility model also comprises at least one clamp opening assembly (500) arranged on the lifting assembly (400), the clamp opening assembly (500) being configured to drive the clamp (300) to release the workpiece after the clamp (300) stays in the processing position for a preset time.

3. The feeding mechanism according to claim 2, wherein The clamp (300) comprises: a first connecting member (310) connected to the rotating disc (200); a second connecting member (320) in sliding connection with the first connecting member (310); a pneumatic clamp jaw (330) arranged on the second connecting member (320), the pneumatic clamp jaw (330) being used to clamp the workpiece; a control valve (340) arranged on the second connecting member (320) and used to connect an opening air inlet (331) of the pneumatic clamp jaw (330) to a gas supply device, the control valve (340) being configured to allow gas to enter the pneumatic clamp jaw (330) to release the workpiece when the control valve (340) is driven to open by the clamp opening assembly (500).

4. The feeding mechanism according to claim 3, wherein One of the first connecting member (310) and the second connecting member (320) is provided with a guide portion (323), and the other is provided with a limiting portion in sliding connection with the guide portion (323).

5. The feeding mechanism according to claim 3, wherein The clamp (300) further comprises a reset member (350) connected to the first connecting member (310) and the second connecting member (320) respectively, the reset member (350) being configured to apply a driving force to the second connecting member (320) to move the second connecting member (320) away from the processing position after the pneumatic clamp jaw (330) releases the workpiece.

6. The feeding mechanism according to claim 5, wherein, The reset member (350) is an elastic member.

7. The loading mechanism of claim 6, wherein, The first connecting member (310) is provided with a positioning member (313), the positioning member (313) being configured to contact the second connecting member (320) when the reset member (350) drives the second connecting member (320) to move to a maximum distance, so as to limit the position of the second connecting member (320).

8. The feeding mechanism of claim 3, wherein, Further comprising at least one pressure reducing valve (600) for connecting the gas supply device and the closed-clamping air inlet (332) of at least one of the pneumatic clamping jaws (330), the pressure reducing valve (600) being configured to control the amount of gas entering the pneumatic clamping jaw (330) through the closed-clamping air inlet (332) to adjust the clamping force exerted by the pneumatic clamping jaw (330) on the workpiece.

9. The loading mechanism of claim 8, wherein, The base (100) is provided with a rotary joint (110) rotatably connected to the base (100), the rotary joint (110) being used for connecting the gas supply device, and the rotary joint (110) further connecting the pressure reducing valve (600) and the control valve (340) through pipelines.

10. The feeding mechanism of claim 3, wherein, The jacking assembly (400) comprises: a first driving member (410) connected to the base (100); a first transmission member (420) connected to the output end of the first driving member (410), the open-clamping assembly (500) being arranged on the first transmission member (420), and the first transmission member (420) being configured to be driven by the first driving member (410) to push the clamp (300) to move when the clamp (300) moves to the jacking position.

11. The loading mechanism of claim 10, wherein, The open-clamping assembly (500) comprises: a second driving member (510) connected to the first transmission member (420); a second transmission member (520) connected to the output end of the second driving member (510), the second transmission member (520) being configured to be driven by the second driving member (510) to contact the control valve (340) to open the control valve (340).

12. The loading mechanism according to any one of claims 1-11, wherein, The base (100) is provided with a third driving member (700) connected to the rotary disc (200), the third driving member (700) being configured to drive the rotary disc (200) to rotate to move the clamp (300) to the jacking position.

13. A welding device characterized by, The feeding mechanism comprises the feeding mechanism according to any one of claims 1-12. The feeding mechanism comprises the feeding mechanism according to any one of claims 1-12.

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