Pole piece feeding mechanism

Abstract

The utility model provides a pole piece feeding mechanism which is characterized in that a feeding mechanical arm comprises a first Z-axis driving assembly, a lifting vertical plate, a fixed transverse plate, a bending plate, a bending air cylinder, a suction cup installation frame and a suction cup assembly, and the first Z-axis driving assembly is fixed to the power output end of an X-axis driving assembly; the lifting vertical plate is fixed to the power output end of the first Z-axis driving assembly, the fixing transverse plate is fixed to the lower end of the lifting vertical plate, the rear end of the bending plate is hinged to the front end of the fixing transverse plate, the rear end of the bending air cylinder corresponds to the upper portion of the fixing transverse plate and is hinged to the lifting vertical plate, and the front end of the bending air cylinder serves as the power output end and is hinged to the bending plate. The two sets of suction cup mounting frames are fixed to the fixed transverse plate and the bent plate correspondingly, and the suction cup assemblies are fixed to the left ends and the right ends of the suction cup mounting frames. The pole piece conveying device has the advantages that pole pieces can be prevented from being overlapped in the material taking process, it is ensured that one pole piece is conveyed each time, and then the stability of subsequent machining is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery lamination equipment, in particular to a pole piece feeding mechanism. BACKGROUND

[0002] Winding and lamination are the most core links of the middle section cell assembly process of lithium battery and are two different cell manufacturing processes. Winding is a production process of winding the pole piece, separator and terminal tape with matched sizes after slitting into pole core. Lamination is a production process of alternately stacking the pole piece and separator together to finally complete the multi-layer laminated pole core. For Z-shaped lamination lithium battery, the separator is in continuous Z shape, and the pole piece is placed between the two layers of separator.

[0003] The pole piece is transported to the lamination station by the mechanical hand with suction cups. A large number of pole pieces are stacked on the feeding station for taking. Since the pole piece is very thin, the second layer of pole piece is easily adsorbed on the uppermost layer of pole piece when the mechanical hand takes the uppermost layer of pole piece, which leads to the error of taking quantity and further affects the normal operation of the subsequent process. Therefore, it is necessary to manufacture a pole piece feeding mechanism to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a pole piece feeding mechanism to solve the problems mentioned in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A pole piece feeding mechanism, comprising a mounting platform, a mounting stand, an X-axis driving assembly, a feeding mechanical hand, a carrying mechanical hand, a feeding platform and a positioning platform, the mounting stand is vertically fixed above the mounting platform, the X-axis driving assembly is fixed on the upper end of the mounting stand, the feeding mechanical hand and the carrying mechanical hand are respectively fixed on the power output ends of the left and right sides of the X-axis driving assembly, the feeding platform and the positioning platform are both fixed on the mounting platform and correspond to the below of the feeding mechanical hand and the carrying mechanical hand respectively; the feeding mechanical hand comprises a first Z-axis driving assembly, a lifting vertical plate, a fixed horizontal plate, a bending plate, a bending cylinder, a suction cup mounting rack and a suction cup assembly, the first Z-axis driving assembly is fixed on the power output end of the X-axis driving assembly, the lifting vertical plate is fixed on the power output end of the first Z-axis driving assembly, the fixed horizontal plate is fixed on the lower end of the lifting vertical plate, the rear end of the bending plate is hinged with the front end of the fixed horizontal plate, the rear end of the bending cylinder corresponds to the above of the fixed horizontal plate and is hinged with the lifting vertical plate, the front end of the bending cylinder is the power output end and is hinged with the bending plate, the suction cup mounting rack is provided with two groups and is fixed on the fixed horizontal plate and the bending plate respectively, and the suction cup assembly is fixed on the left and right ends of the suction cup mounting rack.

[0007] Further description of the utility model: X axle drive assembly, loading manipulator, carrying manipulator, loading platform and positioning platform are symmetrically arranged two groups about installation stand.

[0008] Further description of the utility model: first Z axle drive assembly includes fixed vertical board, Z axle sliding table, first Z axle cylinder and Z axle sliding block, fixed vertical board is fixed at the power output end of X axle drive assembly, Z axle sliding table and first Z axle cylinder are all fixed on fixed vertical board, lifting vertical board is fixed at the power output end of first Z axle cylinder, Z axle sliding block is fixed on the upper end of lifting vertical board and is slidably connected with Z axle sliding table.

[0009] Further description of the utility model: loading platform includes material frame, second Z axle drive assembly, loading support and pole piece brush, material frame is fixed above installation platform and corresponds to the below of loading manipulator, material frame is equipped with loading cavity in, second Z axle drive assembly is fixed on installation platform, loading support is fixed at the power output end of second Z axle drive assembly and corresponds to inside loading cavity, pole piece brush is fixedly arranged and corresponds to the above of loading support, pole piece brush is set multiple groups and corresponds to the front and rear sides of loading support, the brush end of pole piece brush corresponds to the edge of loading cavity.

[0010] Further description of the utility model: positioning platform includes first mounting bracket, second mounting bracket, positioning support, second Z axle cylinder, drive block and positioning assembly, first mounting bracket is fixed above installation platform, positioning support is fixed above first mounting bracket, second mounting bracket is fixed below positioning support, second Z axle cylinder is fixed on second mounting bracket and the power output end is upward, drive block is fixed at the power output end of second Z axle cylinder, the lower end of drive block is cylindrical body, and the upper end is conical body, positioning assembly includes first connecting block, elastic telescopic part, second connecting block, positioning plate, roller connecting rod and drive roller, first connecting block is fixed below the edge of positioning support, elastic telescopic part is fixed on first connecting block and the elastic end is towards drive block, the inner end of second connecting block is fixed on the elastic end of elastic telescopic part, positioning plate is fixed on the outer end of second connecting block and corresponds to the above of positioning support, the outer end of roller connecting rod is fixed on the elastic end of elastic telescopic part, drive roller is rotatably installed on the inner end of roller connecting rod and is in abutment with the upper end of drive block, positioning assembly is set four groups and corresponds to the four around of positioning support.

[0011] The utility model discloses an advantageous effect is: the polar piece of stacking neat is placed on the loading platform, through the loading manipulator and moves to the positioning platform and carries out positioning every time sucking, and the carrying manipulator carries the polar piece on the positioning platform to the rear procedure, when the loading manipulator grabs the polar piece, X axle drive assembly drives the loading manipulator to move to the loading platform top, then, first Z axle drive assembly drives the lifting vertical board to drop, makes the suction cup subassembly to the uppermost polar piece adsorption, then the lifting vertical board rises, and the bending cylinder drives the bending board to turn down a certain angle, to make the polar piece bending, if other polar piece is attached below the uppermost polar piece, with the bending of polar piece, other polar piece will drop, to ensure that the loading manipulator transports a polar piece every time, and the bending plate resets, and the loading manipulator can transport the polar piece to the positioning platform. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the overall structure diagram of the utility model;

[0013] Fig. 2 It is the structure diagram of the loading manipulator in the utility model;

[0014] Fig. 3 It is the structure diagram of the loading platform in the utility model;

[0015] Fig. 4 It is the structure diagram of the positioning platform in the utility model;

[0016] Fig. 5 It is the structure diagram of the second Z axle cylinder, drive block and positioning assembly in the utility model;

[0017] BRIEF DESCRIPTION OF DRAWINGS:

[0018] 1, installation platform, 2, installation vertical frame, 3, X axle drive assembly, 4, loading manipulator, 41, first Z axle drive assembly, 411, fixed vertical board, 412, Z axle sliding table, 413, first Z axle cylinder, 414, Z axle sliding block, 42, lifting vertical board, 43, fixed horizontal plate, 44, bending plate, 45, bending cylinder, 46, suction cup mounting frame, 47, suction cup subassembly, 5, carrying manipulator, 6, loading platform, 61, material frame, 611, loading cavity, 62, second Z axle drive assembly, 63, loading table, 64, polar piece brush, 7, positioning platform, 71, first installation support, 72, second installation support, 73, positioning table, 74, second Z axle cylinder, 75, drive block, 76, positioning assembly, 761, first connecting block, 762, elastic telescopic part, 763, second connecting block, 764, positioning plate, 765, roller connecting rod, 766, drive roller. DETAILED DESCRIPTION

[0019] The utility model is further explained in connection with the drawings as follows:

[0020] As Figs. 1 to 5 shown, an electrode piece feeding mechanism, comprising installation platform 1, installation stand 2, X shaft drive assembly 3, feeding manipulator 4, carrying manipulator 5, feeding platform 6 and positioning platform 7, installation stand 2 is vertically fixed above installation platform 1, X shaft drive assembly 3 is fixed on the upper end of installation stand 2, feeding manipulator 4 and carrying manipulator 5 are fixed on the power output end of X shaft drive assembly 3 left and right sides respectively, feeding platform 6 and positioning platform 7 are all fixed on installation platform 1 and correspond to the below of feeding manipulator 4 and carrying manipulator 5 respectively;

[0021] Feeding manipulator 4 includes first Z shaft drive assembly 41, lifting vertical plate 42, fixed horizontal plate 43, bending plate 44, bending cylinder 45, suction disc mounting rack 46 and suction disc assembly 47, first Z shaft drive assembly 41 is fixed on the power output end of X shaft drive assembly 3, lifting vertical plate 42 is fixed on the power output end of first Z shaft drive assembly 41, fixed horizontal plate 43 is fixed on the lower end of lifting vertical plate 42, the rear end of bending plate 44 is hinged with the front end of fixed horizontal plate 43, the rear end of bending cylinder 45 corresponds to the above of fixed horizontal plate 43 and is hinged with lifting vertical plate 42, the front end of bending cylinder 45 is the power output end and is hinged with bending plate 44, suction disc mounting rack 46 is provided with two groups and is fixed on fixed horizontal plate 43 and bending plate 44 respectively, suction disc assembly 47 is fixed on the left and right ends of suction disc mounting rack 46.

[0022] Stacked electrode pieces are placed on feeding platform 6, are sucked and moved to positioning platform 7 by feeding manipulator 4 and are positioned, carrying manipulator 5 carries the electrode piece on positioning platform 7 to the subsequent process, when feeding manipulator 4 grabs the electrode piece, X shaft drive assembly 3 drives feeding manipulator 4 to move to the above of feeding platform 6, then, first Z shaft drive assembly 41 drives lifting vertical plate 42 to descend, makes suction disc assembly 47 adsorb the uppermost electrode piece, then lifting vertical plate 42 rises, bending cylinder 45 drives bending plate 44 to fold down a certain angle, so that the electrode piece is bent, if other electrode pieces are attached below the uppermost electrode piece, with the bending of the electrode piece, other electrode pieces will fall, so as to ensure that feeding manipulator 4 transports one electrode piece each time, after the folding of bending plate 44 resets, feeding manipulator 4 can transport the electrode piece to positioning platform 7.

[0023] The X-axis driving assembly 3, the feeding manipulator 4, the carrying manipulator 5, the feeding platform 6 and the positioning platform 7 are symmetrically arranged in two groups about the mounting stand 2. Two groups of pole pieces can be transported at the same time, which facilitates efficient subsequent lamination process.

[0024] The first Z-axis driving assembly 41 comprises a fixed vertical plate 411, a Z-axis sliding table 412, a first Z-axis cylinder 413 and a Z-axis sliding block 414. The fixed vertical plate 411 is fixed at the power output end of the X-axis driving assembly 3. The Z-axis sliding table 412 and the first Z-axis cylinder 413 are both fixed on the fixed vertical plate 411. The lifting vertical plate 42 is fixed at the power output end of the first Z-axis cylinder 413. The Z-axis sliding block 414 is fixed at the upper end of the lifting vertical plate 42 and is in sliding connection with the Z-axis sliding table 412.

[0025] The first Z-axis driving assembly 41 drives the lifting vertical plate 42 to slide in the vertical direction on the Z-axis sliding table 412.

[0026] The feeding platform 6 comprises a material frame 61, a second Z-axis driving assembly 62, a feeding support 63 and a pole piece brush 64. The material frame 61 is fixed above the mounting platform 1 and corresponds to the lower side of the feeding manipulator 4. The material frame 61 is provided with a feeding cavity 611 inside. The second Z-axis driving assembly 62 is fixed on the mounting platform 1. The feeding support 63 is fixed at the power output end of the second Z-axis driving assembly 62 and corresponds to the inside of the feeding cavity 611. The pole piece brush 64 is fixedly arranged and corresponds to the upper side of the feeding support 63. The pole piece brush 64 is arranged in multiple groups and corresponds to the front and rear sides of the feeding support 63. The brush end of the pole piece brush 64 corresponds to the edge of the feeding cavity 611.

[0027] The stacked and aligned pole pieces are placed in the feeding cavity 611. As the pole pieces are continuously taken away, the second Z-axis driving assembly 62 gradually lifts the feeding support 63, so as to facilitate the feeding action of the feeding manipulator 4. When the feeding manipulator 4 grabs the pole pieces and rises, the edges of the pole pieces contact the pole piece brush 64. If other pole pieces are attached below the uppermost pole pieces, they will be scraped off by the pole piece brush 64, further ensuring that the feeding manipulator 4 only grabs one pole piece.

[0028] The positioning platform 7 comprises a first mounting bracket 71, a second mounting bracket 72, a positioning table 73, a second Z-axis cylinder 74, a driving block 75 and a positioning assembly 76, the first mounting bracket 71 is fixed above the mounting platform 1, the positioning table 73 is fixed above the first mounting bracket 71, the second mounting bracket 72 is fixed below the positioning table 73, the second Z-axis cylinder 74 is fixed on the second mounting bracket 72 and the power output end faces upward, the driving block 75 is fixed on the power output end of the second Z-axis cylinder 74, the lower end of the driving block 75 is a cylinder and the upper end is a cone, the positioning assembly 76 comprises a first connecting block 761, an elastic telescopic piece 762, a second connecting block 763, a positioning plate 764, a roller connecting rod 765 and a driving roller 766, the first connecting block 761 is fixed on the lower edge of the positioning table 73, the elastic telescopic piece 762 is fixed on the first connecting block 761 and the elastic end faces the driving block 75, the inner end of the second connecting block 763 is fixed on the elastic end of the elastic telescopic piece 762, the positioning plate 764 is fixed on the outer end of the second connecting block 763 and corresponds to the upper side of the positioning table 73, the outer end of the roller connecting rod 765 is fixed on the elastic end of the elastic telescopic piece 762, the driving roller 766 is rotatably installed on the inner end of the roller connecting rod 765 and abuts against the upper end of the driving block 75, and the positioning assembly 76 is provided with four groups and corresponds to the four sides of the positioning table 73.

[0029] In the initial state of the positioning table 73, the second Z-axis cylinder 74 is in the upward stretching state, the driving block 75 drives the driving roller 766 to run outward through the conical part, and finally the driving roller 766 abuts against the cylindrical part of the driving block 75, the elastic telescopic piece 762 is compressed, so that the positioning plate 764 is driven to move outward, when the feeding manipulator 4 grabs the pole piece and moves above the positioning table 73, the first Z-axis driving assembly 41 drives the suction cup assembly 47 to descend, so that the pole piece approaches the positioning table 73, at this time, the second Z-axis cylinder 74 drives the driving block 75 to descend, the driving roller 766 abuts against the conical part of the driving block 75, so that the four groups of positioning plates 764 move to the middle, and the placement area of the pole piece is limited, then the feeding manipulator 4 can release the pole piece, so that the pole piece falls in the area surrounded by the four groups of positioning plates 764, so that the carrying manipulator 5 takes away the pole piece.

[0030] The above is not any limitation on the technical range of the utility model, any modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments still belong to the range of the technical scheme of the utility model.

Claims

1. A pole piece feeding mechanism, characterized in that: The installation platform, the installation stand, the X-axis drive assembly, the feeding manipulator, the carrying manipulator, the feeding platform and the positioning platform are vertically fixed on the installation platform, the X-axis drive assembly is fixed on the upper end of the installation stand, the feeding manipulator and the carrying manipulator are respectively fixed on the power output ends on the left and right sides of the X-axis drive assembly, and the feeding platform and the positioning platform are respectively fixed on the installation platform and correspond to the lower sides of the feeding manipulator and the carrying manipulator. The feeding manipulator comprises a first Z-axis drive assembly, a lifting vertical plate, a fixed horizontal plate, a bending plate, a bending cylinder, a suction cup mounting rack and a suction cup assembly, the first Z-axis drive assembly is fixed on the power output end of the X-axis drive assembly, the lifting vertical plate is fixed on the power output end of the first Z-axis drive assembly, the fixed horizontal plate is fixed on the lower end of the lifting vertical plate, the rear end of the bending plate is hinged to the front end of the fixed horizontal plate, the rear end of the bending cylinder corresponds to the upper side of the fixed horizontal plate and is hinged to the lifting vertical plate, the front end of the bending cylinder is a power output end and is hinged to the bending plate, and the suction cup mounting rack is provided with two groups and is fixed on the fixed horizontal plate and the bending plate.

2. The pole piece loading mechanism of claim 1, wherein: The X-axis drive assembly, the feeding manipulator, the carrying manipulator, the feeding platform and the positioning platform are symmetrically provided with two groups about the installation stand.

3. The pole piece loading mechanism of claim 1, wherein: The first Z-axis drive assembly comprises a fixed vertical plate, a Z-axis sliding table, a first Z-axis cylinder and a Z-axis sliding block, the fixed vertical plate is fixed on the power output end of the X-axis drive assembly, the Z-axis sliding table and the first Z-axis cylinder are both fixed on the fixed vertical plate, the lifting vertical plate is fixed on the power output end of the first Z-axis cylinder, and the Z-axis sliding block is fixed on the upper end of the lifting vertical plate and is slidingly connected with the Z-axis sliding table.

4. The pole piece loading mechanism of claim 1, wherein: The feeding platform comprises a material frame, a second Z-axis drive assembly, a feeding carrier and a pole piece brush, the material frame is fixed above the installation platform and corresponds to the lower side of the feeding manipulator, the material frame is provided with a feeding cavity, the second Z-axis drive assembly is fixed on the installation platform, the feeding carrier is fixed on the power output end of the second Z-axis drive assembly and corresponds to the feeding cavity, the pole piece brush is fixed and corresponds to the upper side of the feeding carrier, the pole piece brush is provided with multiple groups and corresponds to the front and rear sides of the feeding carrier, and the brush end of the pole piece brush corresponds to the edge of the feeding cavity.

5. The pole piece loading mechanism of claim 1, wherein: The positioning platform comprises a first mounting bracket, a second mounting bracket, a positioning table, a second Z-axis cylinder, a driving block and a positioning assembly, the first mounting bracket is fixed above the mounting platform, the positioning table is fixed above the first mounting bracket, the second mounting bracket is fixed below the positioning table, the second Z-axis cylinder is fixed on the second mounting bracket with the power output end upward, the driving block is fixed on the power output end of the second Z-axis cylinder, the lower end of the driving block is a cylinder and the upper end is a cone, the positioning assembly comprises a first connecting block, an elastic expansion piece, a second connecting block, a positioning plate, a roller connecting rod and a driving roller, the first connecting block is fixed on the lower edge of the positioning table, the elastic expansion piece is fixed on the first connecting block with the elastic end facing the driving block, the inner end of the second connecting block is fixed on the elastic end of the elastic expansion piece, the positioning plate is fixed on the outer end of the second connecting block and corresponds to the upper side of the positioning table, the outer end of the roller connecting rod is fixed on the elastic end of the elastic expansion piece, and the driving roller is rotatably installed on the inner end of the roller connecting rod and abuts against the upper end of the driving block, and the positioning assembly is provided with four sets and corresponds to the four sides of the positioning table.

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