CN118205897A - Material overturning mechanism and application thereof - Google Patents

Abstract

The invention belongs to the technical field of electrolytic tank processing equipment, and particularly provides a material overturning mechanism which comprises a fixed support column, a movable support column and a rotating frame; the rotary frame comprises a fixed half frame and a movable half frame which are connected in a sliding way, a clamping area for placing materials is formed by enclosing the fixed half frame and the movable half frame, and the sliding direction between the fixed half frame and the movable half frame is the same as the moving direction of the movable supporting column; the fixed half frame is rotationally connected to the fixed support column; the movable half frame is rotatably connected to the movable support column, and the rotation axes of the movable half frame and the movable support column are coaxially arranged; a plurality of clamping assemblies for clamping materials are arranged on the fixed half frame and the movable half frame, and each clamping assembly is located in the clamping area. The material turnover mechanism can meet the positioning and clamping of materials such as multi-size polar frames, polar plates and the like; the clamping components movably connected to the rotating frame enable the material to be positioned more accurately, and the clamping components are matched with the centering component, so that the actual clamping area of each clamping component is the same, the clamping is firmer, and the products are ensured not to be deformed due to the problems of moment of inertia and the like.

Description

Material overturning mechanism and application thereof

Technical Field

The invention belongs to the technical field of electrolytic tank processing equipment, and particularly relates to a material overturning mechanism and application thereof.

Background

Along with the development of a hydrogen energy industry chain, a hydrogen production link is paid attention to, an electrolytic tank is a core component of an alkaline water hydrogen production device, the electrolytic tank is formed by connecting a plurality of electrodes in series, and the structure of the electrodes consists of a pole frame and a positive pole net and a negative pole net. The electrode of the electrolytic tank needs to be overturned to realize double-sided processing in different processing links of production and manufacture, and because the size diameter of the workpiece is different from 1 meter to 2.5 meters, the manual overturning easily causes the collision and damage of the electrode plate of the electrolytic tank, and the electrode of the electrolytic tank can fall occasionally to influence the quality of products, and the labor intensity of workers is higher and the working efficiency is lower. The general turnover machine has oversized external dimensions and cannot meet the requirements of products with multiple dimensions.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the turnover flexibility of a pole frame and a pole plate is low, the damage to materials is easy to cause, and the pole plate cannot adapt to multi-size products and the like.

For this reason, the invention provides a material turnover mechanism, which comprises a fixed support column, a movable support column and a rotary frame; the rotary frame comprises a fixed half frame and a movable half frame, the fixed half frame is in sliding connection with the movable half frame, a clamping area for placing materials is formed by encircling the fixed half frame and the movable half frame, and the sliding direction between the fixed half frame and the movable half frame is the same as the moving direction of the movable supporting column; the fixed half frame is rotatably connected to the fixed support column; the movable half frame is rotatably connected to the movable supporting column, and the rotation axis of the fixed half frame and the rotation axis of the movable half frame are coaxially arranged; the fixed half frame and the movable half frame are respectively provided with a plurality of clamping assemblies for clamping materials, and each clamping assembly is positioned in the clamping area.

Specifically, the plurality of clamping assemblies on the fixed half frame and the plurality of clamping assemblies on the movable half frame are arranged in one-to-one symmetry.

Specifically, the clamping assembly comprises a first clamping piece, a first driving piece, a second clamping piece, a second driving piece and a third driving piece, wherein the first driving piece is used for driving the first clamping piece to move along the horizontal direction, the second driving piece is used for driving the second clamping piece to move along the horizontal direction, and the third driving piece is used for driving the first clamping piece and the second clamping piece to move relatively; the first driving member and the second driving member are mounted on the rotating frame; the clamping surfaces of the first clamping piece and the second clamping piece are arranged oppositely.

Specifically, the first clamping piece comprises a first clamping plate and a first clamping block; the first clamping plate is connected to the output end of the first driving piece; the third driving piece is arranged on the first clamping plate; the first clamping block is arranged at the output end of the third driving piece.

Specifically, the rotating frame is provided with N groups of clamping assemblies, each group of clamping assemblies comprises two clamping assemblies, and the clamping assemblies in the same group are symmetrically arranged along the rotating axis; the clamping assemblies on the same side of the rotation axis are arranged at intervals, and an included angle is formed between the moving directions of the adjacent clamping assemblies on the horizontal plane.

Specifically, the rotating frame is provided with a centering component for adjusting the center position of the material to be overturned.

Specifically, the centering assembly comprises a first V-shaped groove, a driving cylinder and a second V-shaped groove; the first V-shaped groove is arranged on the movable half frame; the driving cylinder is arranged on the fixed half frame; the second V-shaped groove is arranged at the output end of the driving cylinder; the V-shaped opening of the first V-shaped groove is arranged opposite to the V-shaped opening of the second V-shaped groove.

Specifically, the V-shaped included angle between the first V-shaped groove and the second V-shaped groove is 160-175 degrees.

Specifically, the material overturning mechanism further comprises a base; the fixed support column is fixedly arranged on the base; the movable support column is slidably mounted on the base through a guide rail.

Specifically, the opening side of the movable half frame is provided with an inserting rod; the opening side of the fixed half frame is provided with a chute matched with the inserted link; the inserted link is slidingly connected in the chute.

The invention also provides a material overturning method adopting the material overturning mechanism, which comprises the following steps:

s1, judging the size of a material to be overturned, and adjusting the movable support column to a preset position according to the size;

s2, adjusting second clamping pieces of the corresponding clamping assemblies to preset positions, transferring the materials to be overturned to the clamping areas, and placing the materials on each second clamping piece;

s3, adjusting the center of the material in the clamping area;

s4, adjusting the first clamping piece of the corresponding clamping assembly to a preset position, and clamping the material;

s5, rotating the rotating frame to finish material overturning.

The invention also provides an electrolytic tank polar net welding system, which comprises carrying equipment, welding equipment for welding polar plates and polar nets and the material overturning mechanism; the welding equipment is connected with the material overturning mechanism through the carrying equipment.

Compared with the prior art, the invention has the following advantages and beneficial effects:

The material overturning mechanism provided by the invention has reasonable design and high use safety, can automatically overturn the electrolytic cell polar plate, improves the working efficiency, can not cause dropping and collision damage of the electrolytic cell polar plate in the overturning process, and ensures the product quality. The positioning and clamping of materials such as multi-size polar frames, polar plates and the like can be satisfied by fixing the one-side half frame and moving the one-side half frame; the clamping components movably connected to the rotating frame enable the material to be positioned more accurately, and the clamping components are matched with the centering component, so that the actual clamping area of each clamping component is the same, the clamping is firmer, and the products are ensured not to be deformed due to the problems of moment of inertia and the like.

The electrolytic tank polar net welding system provided by the invention can rapidly realize the processing of the polar frame and the front and back sides of the polar plate, and improves the processing efficiency and the quality of electrolytic tank nickel net welding.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a material turnover mechanism provided by the invention.

Fig. 2 is a schematic view of a supporting part structure of the material turnover mechanism provided by the invention.

Fig. 3 is a schematic diagram of a turnover clamping part of the material turnover mechanism.

Fig. 4 is a schematic plan view of a turnover clamping part of the material turnover mechanism provided by the invention.

Fig. 5 is a schematic structural diagram of a clamping assembly of the material turnover mechanism provided by the invention.

Fig. 6 is a schematic view of another view of the clamping assembly of the material turning mechanism according to the present invention.

Fig. 7 is a partial schematic view of a centering assembly of a material turning mechanism provided by the invention.

FIG. 8 is a schematic diagram of a welding apparatus for an electrolytic tank polar mesh welding system provided by the invention.

FIG. 9 is a schematic view of the welding head structure of the electrolytic tank polar net welding system provided by the invention.

FIG. 10 is a schematic plan view of a weld head of the electrolytic tank polar mesh welding system provided by the invention.

FIG. 11 is a schematic structural view of a flexible press fitting device of the electrolytic tank polar mesh welding system provided by the invention.

Reference numerals: 1-1, a base; 1-11, a guide rail; 1-2, fixing a support column; 1-3, moving a support column; 1-4, a rotating shaft; 1-5, rotating the frame; 1-51, moving the half frame; 1-511, a plunger; 1-512, limit protrusions; 1-52, fixing half frame; 1-521, a chute; 1-6, clamping assembly; 1-61, a first clamping member; 1-611, a first clamping plate; 1-612, a first clamping block; 1-62, a first driving member; 1-63, a second clamping piece; 1-64, a second driving member; 1-65, a third driving member; 1-7, a centering assembly; 1-71, a first V-shaped groove; 1-72, a second V-shaped groove; 1-73, driving a cylinder; 1-8, materials; 2-1, a flexible pressing device; 2-11, an adapter plate; 2-111, mounting holes; 2-12, a guide plate; 2-121, vertical guide rails; 2-13, limiting plates; 2-14, an elastic piece; 2-15, a pressure head mounting plate; 2-16, rolling bearings; 2-2, welding head; 2-3, a wire feeding assembly; 2-31, a wire feeding hanging disc; 2-32, wire feeding conveying parts; 2-33, a wire feeding tube; 2-34, a wire feeding nozzle; 2-4, a weld tracker; 2-5, a paraxial blowing device; 2-6, a monitoring camera; 2-7, installing a main board; 2-8, supporting jigs; 2-9, a multi-axis mechanical arm.

Detailed Description

The technical solutions of the present invention will be clearly and completely described in the following examples, and it is obvious that the described examples are only some examples of the present invention, but not all examples. Although representative embodiments of the present invention have been described in detail, those skilled in the art to which the invention pertains will appreciate that various modifications and changes can be made without departing from the scope of the invention. Accordingly, the scope of the invention should not be limited to the embodiments, but should be defined by the appended claims and equivalents thereof.

The invention provides a material overturning mechanism which comprises a fixed support column 1-2, a movable support column 1-3 and a rotary frame 1-5; the rotary frame 1-5 comprises a fixed half frame 1-52 and a movable half frame 1-51, the fixed half frame 1-52 is in sliding connection with the movable half frame 1-51 and encloses the fixed half frame 1-52 to form a clamping area for placing materials, and the sliding direction between the fixed half frame 1-52 and the movable half frame 1-51 is the same as the moving direction of the movable support column 1-3; the fixed half frame 1-52 is rotatably connected to the fixed support column 1-2; the movable half frame 1-51 is rotatably connected to the movable supporting column 1-3, and the rotation axis of the fixed half frame 1-52 is coaxially arranged with the rotation axis of the movable half frame 1-51; the fixed half frame 1-52 and the movable half frame 1-51 are respectively provided with a plurality of clamping assemblies 1-6 for clamping the materials 1-8, and each clamping assembly is positioned in the clamping area. When the turnover device is used, the relative position between the movable support column 1-3 and the fixed support column 1-2 is adjusted, the movable half frame 1-51 is driven by the movable support column 1-3 to synchronously move towards the fixed support column 1-2, the volume of the rotary frame 1-5 is reduced, and the inner space of the rotary frame reaches the preset size of the material 1-8 to be turned. And (3) transferring the material 1-8 to be overturned into the rotary frame 1-5 by adopting a lifting mode, a mechanical arm mode or other feasible modes, and starting the clamping assembly 1-6 to clamp the material 1-8. Then the fixed half frame 1-52 and the movable half frame 1-51 of the rotary frame 1-5 synchronously rotate around the fixed support column 1-2 and the movable support column 1-3 to drive the material 1-8 to turn over. Finally, the clamping assembly 1-6 is loosened, and the materials 1-8 are taken out.

Specifically, the clamping assemblies 1-6 on the fixed half frame 1-52 and the clamping assemblies 1-6 on the movable half frame 1-51 are symmetrically arranged one by one, so that the uniform stress is ensured when the material 1-8 is clamped.

Further, the clamping assembly 1-6 comprises a first clamping member 1-61, a first driving member 1-62 for driving the first clamping member 1-61 to move in the horizontal direction, a second clamping member 1-63, a second driving member 1-64 for driving the second clamping member 1-63 to move in the horizontal direction, and a third driving member 1-65 for driving the first clamping member 1-61 and the second clamping member 1-63 to move relatively; the first driving member 1-62 and the second driving member 1-64 are mounted on the rotating frame 1-5; the clamping surfaces of the first clamping member 1-61 and the second clamping member 1-63 are arranged opposite. When the turnover device is used, the second driving piece 1-64 drives the second clamping piece 1-63 to extend horizontally, the material 1-8 to be turned is placed on the clamping surface of the second clamping piece 1-63, then the first driving piece 1-62 drives the first clamping piece 1-61 to extend horizontally, the first clamping piece 1-61 is positioned above the second clamping piece 1-63, the third driving piece 1-65 is started, the first clamping piece 1-61 is driven to move towards the second clamping piece 1-63, and the material 1-8 is clamped between the first clamping piece 1-61 and the second clamping piece 1-63. After overturning, the first clamping piece 1-61 is positioned below the second clamping piece 1-63, the third driving piece 1-65 is recovered, the clamping state is released, at the moment, the material 1-8 is placed on the clamping surface of the first clamping piece 1-61, then the second clamping piece 1-63 is recovered through the second driving piece 1-64, the material 1-8 is exposed, a mechanical arm or other equipment is convenient to take out the material 1-8, and after the material 1-8 is taken out, the first driving piece 1-62 is used for recovering the first clamping piece 1-61. When clamping is performed in the next round, the first clamping piece 1-61 is extended to hold the material 1-8, and then the second clamping piece 1-63 is extended.

Specifically, the first clamping member 1-61 includes a first clamping plate 1-611 and a first clamping block 1-612; the first clamping plate 1-611 is connected to the output end of the first driving member 1-62; the third driving member 1-65 is mounted on the first clamping plate; the first clamping block 1-612 is mounted at the output end of the third drive member 1-65.

Further, N groups of clamping assemblies 1-6 are arranged on the rotating frame 1-5, each group of clamping assemblies 1-6 comprises two clamping assemblies 1-6, and the clamping assemblies 1-6 in the same group are symmetrically arranged along the rotation axis; the clamping assemblies 1-6 on the same side of the rotation axis are arranged at intervals, and an included angle is formed between the moving directions of the adjacent clamping assemblies 1-6 on the horizontal plane. The stable clamping of the materials 1-8 with different sizes is adapted by adjusting the positions of the clamping assemblies 1-6.

In an optimized implementation mode, the rotary frame 1-5 is of a rectangular structure and is divided into a fixed half frame 1-52 and a movable half frame 1-51 in the length direction, and the rotary shafts 1-4 of the fixed half frame 1-52 and the movable half frame 1-51 are overlapped and are all positioned on the central line of the rotary frame 1-5. The clamping assemblies 1-6 are arranged in eight in total, four clamping members are arranged at four corners of the rotary frame 1-5, the moving direction of the clamping members on the horizontal plane is radial, and the other four clamping members are symmetrically arranged at two sides of the rotating point of the fixed half frame 1-52 and the rotating point of the movable half frame 1-51 respectively, and the moving direction of the clamping members on the horizontal plane is the length direction of the rotary frame 1-5. The moving directions of the clamping assemblies 1-6, which are in one-to-one correspondence on the fixed half frames 1-52 and the movable half frames 1-51, on the horizontal plane are opposite. When the size of the material 1-8 to be turned is smaller, the material can be clamped by using only four clamping assemblies 1-6 near the rotating point, and when the size of the material 1-8 to be turned is larger, the clamping assemblies 1-6 arranged at four corners are started.

Because the materials 1-8 such as the polar frame and the polar plate have large size and low material hardness, in order to avoid deformation and damage in the overturning process, the rotating frame 1-5 is provided with the centering component 1-7 for adjusting the center position of the material 1-8 to be overturned. The centering components 1-7 are used for fine adjustment of the materials 1-8, so that the actual clamping areas of the clamping components 1-6 are the same, the clamping is firmer, and the products are ensured not to be deformed due to the problems of moment of inertia and the like.

Specifically, the centering assembly 1-7 includes a first V-shaped groove 1-71, a driving cylinder 1-73, and a second V-shaped groove 1-72; the first V-shaped groove 1-71 is arranged on the movable half frame 1-51; the driving cylinder 1-73 is arranged on the fixed half frame 1-52; the second V-shaped groove 1-72 is arranged at the output end of the driving cylinder 1-73; the V-shaped openings of the first V-shaped grooves 1-71 are arranged opposite to the V-shaped openings of the second V-shaped grooves 1-72. And centering 1-8 of materials such as a pole frame, a pole plate and the like through the V-shaped groove. In another scheme, the driving cylinder 1-73 can be arranged on the movable half frame 1-51, and the first V-shaped groove 1-71 is arranged at the output end of the driving cylinder 1-73; the second V-shaped groove 1-72 is mounted on the fixed half frame 1-52. The positions of the first V-shaped groove 1-71 or the second V-shaped groove 1-72 are adjusted by driving the air cylinders 1-73, so that fine adjustment is performed on the materials 1-8 to realize centering. In order to avoid the situation that static friction force is too large and centering cannot be achieved, the included angle of the V-shaped groove is preferably 160-175 degrees.

In one embodiment, the material turning mechanism comprises the thinned clamping assembly 1-6 and the V-shaped groove type centering assembly 1-7, and the using method is as follows: and the relative position between the movable support column 1-3 and the fixed support column 1-2 is adjusted, the movable half frame 1-51 is driven by the movable support column 1-3 to synchronously move towards the fixed support column 1-2, the volume of the rotary frame 1-5 is reduced, and the inner space of the rotary frame reaches the preset size of the material 1-8 to be overturned. The clamping assemblies 1-6 are synchronously started, the second driving piece 1-64 drives the second clamping piece 1-63 to extend out along the horizontal direction, and the material 1-8 to be overturned is transported into the rotating frame 1-5 by adopting lifting, a mechanical arm or other feasible modes and is placed on the clamping surfaces of the second clamping pieces 1-63 of the clamping assemblies 1-6. The fine adjustment driving cylinder 1-73 is used for centering the material 1-8 by utilizing the first V-shaped groove 1-71 and the second V-shaped groove 1-72, so that the clamping areas of the material 1-8 on the clamping assemblies 1-6 are the same. Then the first clamping piece 1-61 is driven by the first driving piece 1-62 to extend horizontally, the first clamping piece 1-61 is located above the second clamping piece 1-63, the third driving piece 1-65 is started, the first clamping piece 1-61 is driven to move towards the second clamping piece 1-63, and the material 1-8 is clamped between the first clamping piece 1-61 and the second clamping piece 1-63. The fixed half frame 1-52 and the movable half frame 1-51 of the rotary frame 1-5 synchronously rotate around the fixed support column 1-2 and the movable support column 1-3 to drive the material 1-8 to turn over. After overturning, the first clamping piece 1-61 is positioned below the second clamping piece 1-63, the third driving piece 1-65 is recovered, the clamping state is released, at the moment, the material 1-8 is placed on the clamping surface of the first clamping piece 1-61, then the second clamping piece 1-63 is recovered through the second driving piece 1-64, the material 1-8 is exposed, a mechanical arm or other equipment is convenient to take out the material 1-8, and after the material 1-8 is taken out, the first driving piece 1-62 is used for recovering the first clamping piece 1-61.

Further, the material overturning mechanism also comprises a base 1-1; the fixed support column 1-2 is fixedly arranged on the base 1-1; the movable support column 1-3 is slidably mounted on the base 1-1 through a guide rail 1-11. The distance between the movable support column 1-3 and the fixed support column 1-2 is adjusted through the guide rail 1-11, and then the surface area of the rotary frame 1-5 is adjusted, so that the clamping overturning of materials 1-8 with different sizes can be met.

In a refined embodiment, the opening side of the movable half frame 1-51 is provided with a plug rod 1-511; the opening side of the fixed half frame 1-52 is provided with a sliding chute 1-521 matched with the inserted link 1-511; the plunger 1-511 is slidably connected within the chute 1-521. When the movable half frame 1-51 moves along with the movable supporting column 1-3, the inserting rod 1-511 moves in the sliding groove 1-521 to synchronously adjust the size of the rotary frame 1-5. Optionally, the insert rod 1-511 is provided with a limiting protrusion 1-512 to limit the movement of the insert rod 1-511 and the chute 1-521.

Further, the fixed support column 1-2 and the movable support column 1-3 are respectively provided with a rotating shaft 1-4, one end of the rotating shaft 1-4 is connected with a servo motor, the other end of the rotating shaft is connected with the fixed half frame 1-52 or the movable half frame 1-51, and the servo motor drives the fixed half frame 1-52 and the movable half frame 1-51 to rotate through the rotating shafts 1-4.

The invention also provides a material overturning method adopting the material overturning mechanism, which comprises the following steps:

s1, judging the size of a material to be overturned, and adjusting the movable support column to a preset position according to the size;

s2, adjusting second clamping pieces of the corresponding clamping assemblies to preset positions, transferring the materials to be overturned to the clamping areas, and placing the materials on each second clamping piece;

s3, adjusting the center of the material in the clamping area;

s4, adjusting the first clamping piece of the corresponding clamping assembly to a preset position, and clamping the material;

s5, rotating the rotating frame to finish material overturning.

The invention also provides an electrolytic tank polar net welding system which comprises carrying equipment, welding equipment for welding polar plates and polar nets and the material overturning mechanism. When the welding device is used, the welding equipment is used for finishing the welding of the surface A of the polar plate and the polar net, and then the carrying equipment is used for carrying the polar plate and the polar net which finish the welding of one surface to the material overturning mechanism to overturn the polar plate and the polar net, so that the surface B faces upwards. And retrieving the polar plate and the polar net to welding equipment by using carrying equipment, and welding the B surfaces of the polar plate and the polar net.

Specifically, the welding equipment comprises a supporting jig 2-8 and a welding head 2-2; the support jig 2-8 is provided with a cylinder pressing block and a positioning pin matched with a positioning hole on the polar frame; during welding, the polar plates are placed on the supporting jigs 2-8 through the locating pins. And a cylinder pressing block on the jig is adopted to control the pressing polar plate. And then the polar net is placed at the designated position of the polar plate, and the polar plate and the polar net are welded by using the welding joint 2-2.

Further, a flexible pressing device 2-1 is arranged on one side of the welding head 2-2, and the flexible pressing device 2-1 comprises a guide component and a pressure head component; the guide assembly comprises guide plates 2-12 and limit plates 2-13; the limiting plates 2-13 are arranged at the upper ends of the guide plates 2-12; the pressure head assembly is connected below the limiting plates 2-13 through elastic pieces 2-14; the guide plates 2-12 are provided with vertical guide rails 2-121; the ram assembly is slidably coupled to the vertical rails 2-121. When the elastic pressing device is used, the guide assembly is adjusted, so that the pressing head assembly is attached to the polar net, and the pressure is adjusted through the elastic piece 2-14 between the pressing head assembly and the guide assembly limiting plate 2-13, so that elastic pressing is realized. The vertical guide rails 2-121 arranged on the guide plates 2-12 ensure that the pressure head assembly moves in a certain direction when lifting under the action of the elastic piece 2-14, and ensure good bonding degree of the polar net and the polar plate in the welding process. The welding head 2-2 is moved to the welding position to guide the laser to weld. The welding head 2-2 is preferably a swinging welding head 2-2 with swinging effect, the swinging frequency and the swinging amplitude can be set according to welding requirements, the swinging diameter is generally set to be 0.1mm-2mm, and the swinging frequency is 50-300Hz.

In a refined embodiment, the ram assembly includes a ram mounting plate 2-15 and a rolling bearing 2-16; the pressure head mounting plates 2-15 are respectively connected with the guide plates 2-12 and the limit plates 2-13 of the guide assembly; the rolling bearings 2-16 are mounted on the ram mounting plates 2-15 by means of rotating shafts. The rolling bearings 2-16 are adopted for the pressure head, so that good fitting degree of the workpiece can be ensured, and damage to the nickel screen during the movement process of the pressure head assembly along with the welding procedure can be prevented. The size and thickness of the rolling bearings 2-16 can be changed and adjusted as required.

The flexible pressing device 2-1 also comprises an adapter plate 2-11; the guide assembly is detachably mounted on the adapter plate 2-11. The flexible bonding apparatus 2-1 is mounted to one side of the bonding head 2-2 through the interposer 2-11. Optionally, the adapter plate 2-11 is provided with a plurality of mounting holes 2-111 along the length direction, and the height of the guide assembly is adjusted by mounting and fixing the guide assembly with different mounting holes 2-111, so that the height distance from the pressure head assembly to the nickel screen product is adjusted.

In an optimized embodiment, one side of the welding head 2-2 is provided with a wire feeding component 2-3, and wire feeding is performed in the welding process, so that welding net breaking is prevented. The wire feeding material is pure nickel or nickel alloy material, the diameter of the wire feeding is 0.5mm-2mm, and the wire feeding speed is 5mm/s-30mm/s.

Specifically, the wire feed assembly 2-3 includes a wire feed conveyor 2-32; one end of the wire feeding conveying piece 2-32 is connected with the wire feeding pipe 2-33, and the other end of the wire feeding conveying piece is provided with the wire feeding nozzle 2-34 with an adjustable angle, and the included angle between the wire feeding nozzle and the wire feeding conveying piece is 30-70 degrees. The method ensures that the laser light-emitting point on the product can be reached to the exact center when the wire is fed. The wire feed assembly 2-3 further includes a wire feed suspension pan 2-31, and the wire feed conveyor 2-32 is mounted on the wire feed suspension pan 2-31. The wire feeding nozzle 2-34, the wire feeding pipe 2-33 and the wire feeding conveying piece 2-32 are all replaceable components, and are replaced according to the diameter and/or the material of the wire.

Preferably, the welding head 2-2 is provided with a weld tracker 2-4. The weld tracker 2-4 is fixed with the welding head 2-2 through a mounting plate and can identify the weld before the weld track walks.

Furthermore, a paraxial blowing device 2-5 is arranged on the welding head 2-2, preferably, a calandria is used for blowing, the blowing direction is directed to a laser light outlet point of the welding head 2-2, and shielding gas is blown in the welding process to protect welding seams from being oxidized during and after welding.

In a refined embodiment, the welding head 2-2 is provided with a monitoring camera 2-6, so that welding seams can be observed and monitored in real time in the welding process.

Further, the welding head 2-2 is connected with a laser collimator, the laser collimator is connected with a laser through an optical fiber, and the laser is used as a light emitting source.

The effect of the material 1-8 turning mechanism and the application thereof provided by the invention is studied by a specific example.

Example 1:

Referring to fig. 1-7, the present embodiment provides a material turning mechanism including a base 1-1, a fixed support column 1-2, a movable support column 1-3, a rotating frame 1-5, a clamping assembly 1-6, and a centering assembly 1-7.

The bottom of the fixed support column 1-2 is fixedly arranged at one end of the base 1-1; the movable support column 1-3 is slidably mounted at the other end of the base 1-1 through a guide rail 1-11. The upper ends of the fixed support column 1-2 and the movable support column 1-3 are respectively provided with a rotating shaft 1-4.

The rotary frame 1-5 is of a rectangular structure, and midpoints of two sides of the width are respectively connected with rotary shafts 1-4 on the fixed support columns 1-2 and the movable support columns 1-3. The rotary frame 1-5 is divided into a fixed half frame 1-52 and a movable half frame 1-51 along the length direction, an inserting rod 1-511 is arranged on the opening side of the movable half frame 1-51, and a limiting protrusion 1-512 is arranged on the inserting rod 1-511; the opening side of the fixed half frame 1-52 is provided with a sliding groove 1-521 matched with the inserted link 1-511; the insert rod 1-511 is slidably connected in the slide groove 1-521.

The centering component 1-7 comprises a first V-shaped groove 1-71, a driving cylinder 1-73 and a second V-shaped groove 1-72; the first V-shaped groove 1-71 is arranged on the movable half frame 1-51; the driving cylinder 1-73 is arranged on the fixed half frame 1-52; the second V-shaped groove 1-72 is arranged at the output end of the driving cylinder 1-73; the V-shaped openings of the first V-shaped grooves 1-71 are arranged opposite to the V-shaped openings of the second V-shaped grooves 1-72.

The clamping assembly 1-6 comprises a first clamping piece 1-61, a first driving piece 1-62 for driving the first clamping piece 1-61 to move along the horizontal direction, a second clamping piece 1-63, a second driving piece 1-64 for driving the second clamping piece 1-63 to move along the horizontal direction and a third driving piece 1-65 for driving the first clamping piece 1-61 and the second clamping piece 1-63 to move relatively; the first driving member 1-62 and the second driving member 1-64 are mounted on the rotating frame 1-5; the first clamping member 1-61 includes a first clamping plate 1-611 and a first clamping block 1-612; the first clamping plate 1-611 is connected to the output end of the first driving member 1-62; the third driving member 1-65 is mounted on the first clamping plate; the first clamping blocks 1-612 are arranged at the output ends of the third driving parts 1-65; the second clamping member 1-63 is connected to the output end of the second driving member 1-64; the clamping surfaces of the first clamping blocks 1-612 and the second clamping members 1-63 are arranged opposite.

The clamping assemblies 1-6 are arranged in eight in total, four clamping assemblies are arranged at four corners of the rotating frame 1-5, the moving directions of the corresponding first clamping pieces 1-61 and second clamping pieces 1-63 on the horizontal plane are radial, and the moving directions of the clamping assemblies 1-6 on the horizontal plane, which are in one-to-one correspondence on the fixed half frame 1-52 and the movable half frame 1-51, are opposite. The other four clamping pieces are symmetrically arranged on two sides of the first V-shaped groove 1-71 and the second V-shaped groove 1-72 respectively, and the moving direction of the corresponding first clamping piece 1-61 and the second clamping piece 1-63 on the horizontal plane is the length direction of the rotary frame 1-5.

The using method of the material overturning mechanism comprises the following steps:

1. Firstly, judging the size of 1-8 materials which are hoisted, are transported by a manipulator or other feasible modes, wherein the size of 1-8 materials with the diameter of 1500-1900mm is defined as small-size materials, and the size of 1-8 materials with the diameter of 1900-2500mm is defined as large-size materials.

2. When the large-size material 1-8 is turned over, the movable support column 1-3 moves on the guide rail 1-11 towards the fixed support column 1-2, the movable half frame 1-51 synchronously moves towards the fixed half frame 1-52 under the drive of the movable support column 1-3, the surface area of the rotary frame 1-5 is reduced, and the movable support column 1-3 stops moving after the surface area of the rotary frame reaches the preset size of the material 1-8 to be turned over. The clamping assemblies 1-6 positioned at four corners of the rotating frame 1-5 are synchronously started, the second clamping members 1-63 are driven by the second driving members 1-64 to extend out radially on the horizontal plane, and the materials 1-8 to be overturned are transported into the rotating frame 1-5 by adopting lifting, mechanical arms or other feasible modes and are placed on the clamping surfaces of the second clamping members 1-63 of the four clamping assemblies 1-6. And the fine adjustment driving cylinder 1-73 is used for centering the material 1-8 by utilizing the first V-shaped groove 1-71 and the second V-shaped groove 1-72, so that the clamping areas of the material 1-8 on the second clamping pieces 1-63 are the same. Then the first driving piece 1-62 drives the first clamping piece 1-61 to extend out along the radial direction on the horizontal plane, so that the first clamping block 1-612 of the first clamping piece 1-61 is positioned above the second clamping piece 1-63, the third driving piece 1-65 is started, the first clamping block 1-612 is driven to move towards the second clamping piece 1-63, and the material 1-8 is clamped between the first clamping piece 1-61 and the second clamping piece 1-63. The rotating shaft 1-4 is started, so that the fixed half frame 1-52 and the movable half frame 1-51 of the rotating frame 1-5 synchronously rotate around the fixed support column 1-2 and the movable support column 1-3 to drive the material 1-8 to turn over. After the overturning, the first clamping piece 1-61 is positioned below the second clamping piece 1-63, the third driving piece 1-65 is recovered, the clamping state is released, at the moment, the material 1-8 is placed on the clamping surface of the first clamping piece 1-61, then the second clamping piece 1-63 is recovered through the second driving piece 1-64, the material 1-8 is exposed, a mechanical arm or other equipment is convenient to take out the material 1-8, after the material 1-8 is taken out, the first driving piece 1-62 recovers the first clamping piece 1-61, and one round of overturning is completed.

3. When the small-size material 1-8 is turned over, the movable support column 1-3 moves on the guide rail 1-11 towards the fixed support column 1-2, the movable half frame 1-51 synchronously moves towards the fixed half frame 1-52 under the drive of the movable support column 1-3, the surface area of the rotary frame 1-5 is reduced, and the movable support column 1-3 stops moving after the surface area of the rotary frame reaches the preset size of the material 1-8 to be turned over. The clamping assemblies 1-6 positioned at the two sides of the first V-shaped groove 1-71 and the second V-shaped groove 1-72 are synchronously started, the second clamping piece 1-63 is driven by the second driving piece 1-64 to extend out in the length direction on the horizontal plane, and the material 1-8 to be overturned is transported into the rotating frame 1-5 by adopting a hoisting mode, a mechanical arm or other feasible modes and is placed on the clamping surfaces of the second clamping pieces 1-63 of the four clamping assemblies 1-6. And the fine adjustment driving cylinder 1-73 is used for centering the material 1-8 by utilizing the first V-shaped groove 1-71 and the second V-shaped groove 1-72, so that the clamping areas of the material 1-8 on the second clamping pieces 1-63 are the same. Then the first driving piece 1-62 drives the first clamping piece 1-61 to extend out along the length direction on the horizontal plane, so that the first clamping block 1-612 of the first clamping piece 1-61 is positioned above the second clamping piece 1-63, the third driving piece 1-65 is started, the first clamping block 1-612 is driven to move towards the second clamping piece 1-63, and the material 1-8 is clamped between the first clamping piece 1-61 and the second clamping piece 1-63. The rotating shaft 1-4 is started, so that the fixed half frame 1-52 and the movable half frame 1-51 of the rotating frame 1-5 synchronously rotate around the fixed support column 1-2 and the movable support column 1-3 to drive the material 1-8 to turn over. After the overturning, the first clamping piece 1-61 is positioned below the second clamping piece 1-63, the third driving piece 1-65 is recovered, the clamping state is released, at the moment, the material 1-8 is placed on the clamping surface of the first clamping piece 1-61, then the second clamping piece 1-63 is recovered through the second driving piece 1-64, the material 1-8 is exposed, a mechanical arm or other equipment is convenient to take out the material 1-8, after the material 1-8 is taken out, the first driving piece 1-62 recovers the first clamping piece 1-61, and one round of overturning is completed.

Example 2:

as shown in fig. 8-11, this embodiment provides an electrolytic cell polar mesh welding system comprising a welding device for welding polar plates and polar meshes, a handling device, and the material turning mechanism provided in embodiment 1.

The handling equipment is preferably a loading and unloading robot.

The welding equipment comprises a multi-axis mechanical arm 2-9, a supporting jig 2-8, a swing welding head 2-2, a wire feeding assembly 2-3 and a flexible pressing device 2-1, wherein the wire feeding assembly 2-3 and the flexible pressing device 2-1 are arranged on the side edge of the swing welding head 2-2.

The support jig 2-8 is provided with an air cylinder pressing block and a positioning pin matched with a positioning hole on the polar frame.

The flexible pressing device 2-1 comprises an adapter plate 2-11, a guide assembly and a pressure head assembly. The guide assembly comprises a guide plate 2-12 and a limiting plate 2-13, wherein the limiting plate 2-13 is fixed at the upper end of the guide plate 2-12, and forms an inverted L-shaped section guide assembly together with the guide plate 2-12. The pressure head assembly comprises a pressure head mounting plate 2-15 and a rolling bearing 2-16, a rotating shaft is arranged at the lower end of the pressure head mounting plate 2-15, and the rolling bearing 2-16 is mounted on the rotating shaft and locked through a spacer ring and a nut. The top of the pressure head mounting plate 2-15 is connected below the limiting plate 2-13 through a spring, a vertical guide rail 2-121 is arranged on one side of the guide plate 2-12 adjacent to the pressure head mounting plate 2-15, and the side wall of the pressure head mounting plate 2-15 is connected to the vertical guide rail 2-121 through a sliding block in a sliding mode. A plurality of mounting holes 2-111 are formed in the adapter plate 2-11 along the vertical direction, and the guide plate 2-12 is detachably mounted on the adapter plate 2-11 through connecting pieces and the mounting holes 2-111.

The welding head 2-2 is fixed on the installation main board 2-7, and the installation main board 2-7 is fixed on the multi-axis mechanical arm 2-9. The adapter plate 2-11 of the flexible pressing device 2-1 is fixed on the welding head 2-2, and the pressure head component is positioned at the left side of the welding head 2-2; the welding head 2-2 is provided with a weld tracker 2-4, a shaft blowing device and a monitoring camera 2-6; the weld tracker 2-4 is arranged at the front side of the welding head 2-2; the blowing direction of the paraxial blowing device 2-5 is directed to the laser light exit point of the welding head 2-2.

The wire feeding assembly 2-3 comprises a wire feeding hanging disc 2-31 and a wire feeding conveying piece 2-32 arranged on the wire feeding hanging disc 2-31; one end of the wire feeding conveying piece 2-32 is connected with a wire feeding pipe 2-33, and the other end is provided with a wire feeding nozzle 2-34 with an adjustable angle; the wire feeding hanging plate 2-31 is fixed on the mounting main plate 2-7, and the wire feeding nozzle 2-34 is positioned at the rear side of the welding head 2-2.

The following welding steps are adopted during actual use:

S1, preparing a sample piece, wherein the sample piece is divided into a nickel screen and a polar plate, the polar plate is a polar plate after nickel plating, and the surface is ensured to be free of greasy dirt and the like.

S2, lifting the polar plate by the feeding and discharging robot, placing the polar plate on the supporting jig 2-8 through the locating pin, and pressing the polar plate by adopting a cylinder pressing block on the jig. And then placing the polar net at the appointed position of the polar plate, and prepressing by adopting a profiling jig to ensure the smoothness of the nickel net.

S3, adjusting the wire feeding assembly 2-3 to enable the angle of the wire feeding tube 2-33, the heights of wires and products, the positions of the focus of the wires and the laser and the wire feeding speed to meet preset conditions.

S4, adjusting the rolling bearing 2-16 to a welding line position at a preset distance position, and adjusting the pressure between the rolling bearing 2-16 and the nickel screen to be within a preset pressure value through the limiting plate 2-13 and the spring.

And S5, moving the welding head 2-2 to a welding position, and welding the polar plate and the A face of the polar net by combining the wire feeding assembly 2-3 and the welding seam tracker 2-4.

The welding modes are A, B, wherein the welding seam position in the A mode is in the inner ring of the nickel screen edge, and the distance from the nickel screen edge is 1mm-50mm, and the welding seam can be a discontinuous welding seam or full welding; the welding seam position of the mode B is at the edge of the nickel screen, and can be a discontinuous welding seam or a full welding seam.

And S6, after the welding of the surface A is finished, conveying the polar plate and the polar net which are welded on one surface to a material overturning mechanism by adopting a hoisting or mechanical arm to overturn the polar plate and the polar net, enabling the surface B to face upwards, then retrieving the polar plate and the polar net to welding equipment by adopting the hoisting or mechanical arm, and repeating the steps S3-S5 to weld the surface B of the polar plate and the polar net.

The foregoing examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and all designs that are the same or similar to the present invention are within the scope of the present invention.

Claims (10)

1. A material tilting mechanism which characterized in that: comprises a fixed support column, a movable support column and a rotary frame; the rotary frame comprises a fixed half frame and a movable half frame, the fixed half frame is in sliding connection with the movable half frame, a clamping area for placing materials is formed by encircling the fixed half frame and the movable half frame, and the sliding direction between the fixed half frame and the movable half frame is the same as the moving direction of the movable supporting column; the fixed half frame is rotatably connected to the fixed support column; the movable half frame is rotatably connected to the movable supporting column, and the rotation axis of the fixed half frame and the rotation axis of the movable half frame are coaxially arranged; the fixed half frame and the movable half frame are respectively provided with a plurality of clamping assemblies for clamping materials, and each clamping assembly is positioned in the clamping area.

2. The material turning mechanism as set forth in claim 1, wherein: the clamping assemblies on the fixed half frame and the clamping assemblies on the movable half frame are symmetrically arranged one by one.

3. The material turning mechanism as set forth in claim 1, wherein: the clamping assembly comprises a first clamping piece, a first driving piece, a second clamping piece, a second driving piece and a third driving piece, wherein the first driving piece is used for driving the first clamping piece to move along the horizontal direction, the second driving piece is used for driving the second clamping piece to move along the horizontal direction, and the third driving piece is used for driving the first clamping piece and the second clamping piece to move relatively; the first driving member and the second driving member are mounted on the rotating frame; the clamping surfaces of the first clamping piece and the second clamping piece are arranged oppositely.

4. A material tilting mechanism according to claim 3 and wherein: the first clamping piece comprises a first clamping plate and a first clamping block; the first clamping plate is connected to the output end of the first driving piece; the third driving piece is arranged on the first clamping plate; the first clamping block is arranged at the output end of the third driving piece.

5. A material tilting mechanism according to claim 3 and wherein: the rotating frame is provided with N groups of clamping assemblies, each group of clamping assemblies comprises two clamping assemblies, and the clamping assemblies in the same group are symmetrically arranged along the rotating axis; the clamping assemblies on the same side of the rotation axis are arranged at intervals, and an included angle is formed between the moving directions of the adjacent clamping assemblies on the horizontal plane.

6. The material turning mechanism as set forth in claim 1, wherein: and the rotating frame is provided with a centering component for adjusting the center position of the material to be overturned.

7. The material turnover mechanism of claim 6, wherein: the centering assembly comprises a first V-shaped groove, a driving cylinder and a second V-shaped groove; the first V-shaped groove is arranged on the movable half frame; the second V-shaped groove is arranged at the output end of the driving cylinder; the V-shaped opening of the first V-shaped groove is arranged opposite to the V-shaped opening of the second V-shaped groove.

8. The material turning mechanism as set forth in claim 1, wherein: the opening side of the movable half frame is provided with an inserting rod; the opening side of the fixed half frame is provided with a chute matched with the inserted link; the inserted link is slidingly connected in the chute.

9. A material turning method, which is characterized by adopting the material turning mechanism as claimed in claim 3, comprising the following steps:

s1, judging the size of a material to be overturned, and adjusting the movable support column to a preset position according to the size;

s2, adjusting second clamping pieces of the corresponding clamping assemblies to preset positions, transferring the materials to be overturned to the clamping areas, and placing the materials on each second clamping piece;

s3, adjusting the center of the material in the clamping area;

s4, adjusting the first clamping piece of the corresponding clamping assembly to a preset position, and clamping the material;

s5, rotating the rotating frame to finish material overturning.

10. An electrolytic cell polar net welding system, characterized in that: comprising handling equipment, welding equipment for welding polar plates and polar nets, and a material turning mechanism according to any one of claims 1-8; the welding equipment is connected with the material overturning mechanism through the carrying equipment.