CN112570452A - Reciprocating type forming equipment for metal polar plate of fuel cell - Google Patents
Reciprocating type forming equipment for metal polar plate of fuel cell Download PDFInfo
- Publication number
- CN112570452A CN112570452A CN202011449806.0A CN202011449806A CN112570452A CN 112570452 A CN112570452 A CN 112570452A CN 202011449806 A CN202011449806 A CN 202011449806A CN 112570452 A CN112570452 A CN 112570452A
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- forming
- eccentric shaft
- polar plate
- roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/035—Rolls for bars, rods, rounds, tubes, wire or the like
- B21B27/037—Skew rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Press Drives And Press Lines (AREA)
Abstract
A reciprocating type forming device for a metal polar plate of a fuel cell belongs to the technical field of forming devices for metal polar plates of cells. Is characterized by comprising a straightening device, a mobile forming mechanism, a plane hard die transmission mechanism, a tensioning device and a limiting mechanism; the blank enters a frame, enters a polar plate straightening device firstly, enters a forming station and is stopped, a plane hard die moving motor drives a plane hard film to move upwards to the forming station through transmission of an eccentric shaft, a limiting mechanism works simultaneously, a compression spring pushes a U-shaped limiting pin to move inwards, a supporting platform is clamped, the moving platform rolls and forms the polar plate from an initial position along the advancing direction of the polar plate, after rolling, an electromagnet nut of the limiting mechanism is electrified to attract the U-shaped limiting pin to return to the initial position, and the plane hard die moving motor drives an eccentric shaft on the eccentric shaft to rotate downwards so that the plane hard film is separated from the forming station. The method has the advantages of improving the shaping performance of the soft die and the shaping accuracy of the polar plate, reducing the resilience after shaping and meeting the requirement of continuous production.
Description
Technical Field
The invention relates to a reciprocating type forming device for a metal polar plate of a fuel cell, belonging to the technical field of forming devices for metal polar plates of cells.
Background
The metal bipolar plate is used as a core component of the fuel cell and consists of a cathode plate and an anode plate, and the anode plate is provided with a complex flow field structure which has the functions of distributing water and gas, supporting an electric pile and collecting current. Defects such as manufacturing deviation of the polar plate, defective products and the like easily cause failure of the electric pile, and the quality of the electric pile directly influences the output power and the service life of the fuel cell pile. However, the polar plate adopting the micro-forming technology has the problems of poor consistency and low processing efficiency, and the defects of wrinkling, stacking, cracking, uneven thinning and the like exist when the high depth-width ratio flow passage is processed by adopting the traditional processes such as stamping and the like, so that the service life and the use safety of the galvanic pile are influenced, and the industrial production of the metal polar plate is seriously restricted. The existing metal pole plate processing method based on roll forming has the problems of cracking, inaccurate hole shape alignment, inaccurate processing and forming and the like when high-precision processing is carried out, and the springback phenomenon is more prominent.
Disclosure of Invention
The invention aims to provide a reciprocating type forming device for a metal polar plate of a fuel cell, which can effectively overcome the defects in the prior art.
The invention is realized in the way, as shown in figure 1, and is characterized by comprising the following components: the device comprises an upper frame I, a lower frame I ', a polar plate straightening device II, a mobile forming mechanism III, a plane hard die transmission mechanism IV, a tensioning device V and front and rear limiting mechanisms VI and VI'; the pole plate straightening device II is arranged at the left upper end of the upper rack I, the structure of the pole plate straightening device II is shown in figure 6, and an upper straightening roller II 02 and a lower straightening roller II 02' are arranged in a straightening rack II 01; as shown in fig. 1, 2 and 7, the movable forming mechanism iii is a movable forming motor iii 01 mounted at the left end of the upper frame i and driving a lead screw iii 03 mounted in the upper frame i to rotate through a bevel gear iii 02, wherein the lead screw iii 03 is screwed with a nut iii 05 fixed on a forming movable platform iii 04; a first forming rubber roller III 07, a second forming rubber roller III 08, a third forming rubber roller III 09 and a fourth forming rubber roller III 10 are arranged below the forming moving platform III 04 in parallel, guide wheels III 06 are respectively fixed on the left side and the right side of the upper surface of the forming moving platform III 04, and the guide wheels III 06 are positioned in guide sliding grooves I01 on the front side and the rear side of the upper rack I; the surface layers of the first, second, third and fourth forming rubber rollers are provided with polyurethane rubber, and the diameters of the polyurethane rubber are reduced along the advancing direction of the polar plate according to an arithmetic progression with the tolerance of 0.01 mm-0.1 mm; the plane hard die transmission mechanism IV is characterized in that a plane hard die moving motor IV 10 arranged outside a lower rack I ' is connected with an eccentric shaft IV 05 arranged in the lower rack I ' through a coupler IV 09, and the left neck part and the right neck part of the eccentric shaft IV 05 are supported on a butt-joint frame of an upper rack I and the lower rack I ' through a bearing IV 08 as shown in figures 4, 5 and 8; the eccentric shaft IV 05 is positioned on the eccentric shaft support IV 06, the eccentric center of the eccentric shaft IV 06 corresponds to the supporting platform IV 03, the eccentric shaft support IV 06 is connected with the supporting platform IV 03 through a screw IV 11, the supporting platform IV 03 is arranged on the eccentric shaft support IV 06, the middle parts of the supporting platform IV 06 are butted to form an eccentric shaft hole, and the left and right buffer springs IV 07 and IV 07 'are arranged between the lower rack boss I' 01 and the lower boss IV 04; the left and right limiting baffles IV 02 and IV 02' are fixedly connected to the middle part of the upper end surface of the supporting platform IV 03 through screws; the upper surface of the plane hard die is provided with patterns with the same shape as the polar plate; the tensioning device V is arranged at the right upper end of the upper frame I, an upper tensioning roller V02 and a lower tensioning roller V03 are arranged in the tensioning device frame V01, the diameter of the upper tensioning roller and the diameter of the lower tensioning roller are D, and the diameters of left bosses V04, V04 ', V05 and V05' of the upper tensioning roller and the lower tensioning roller are 1.1D-1.2D; the front and rear limiting mechanisms VI and VI ' are shown in figures 1, 2 and 11, and comprise a U-shaped limiting pin VI 01, an electromagnet nut VI 02, a screw rod VI 03 and a compression spring VI 04, wherein the root of the screw rod VI 03 is welded on the side wall of an upper frame I, a central round hole of the U-shaped limiting pin VI 01 is movably sleeved on the screw rod VI 03, the left and right side legs of the screw rod VI 03 are respectively inserted into left and right limiting holes I02 and I02 ' on the wall of the upper frame I, the compression spring VI 04 is movably sleeved between the U-shaped limiting pin VI 01 and the electromagnet nut VI 02, and the installation requirements of the positions of the left and right limiting holes I02 and I02 ' are as follows: when the eccentric shaft IV 05 in the upper frame pushes the supporting platform IV 03 to the highest position, the left leg and the right leg of the U-shaped limiting pin VI 01 can just abut against the lower bottom surface of the supporting platform IV 03.
The invention has the beneficial effects that:
the invention adopts the movable soft roller to roll the metal pole plate, and the metal pole plate is continuously formed for many times through the rubber roller, thereby improving the forming performance of the soft die and the forming accuracy of the pole plate, reducing the pole plate damage caused in the production process of the pole plate, reducing the resilience after forming and meeting the requirements of continuous production.
Drawings
FIG. 1 is a schematic view of the assembly of the present invention; FIG. 2 is a top plan view of the assembly of the present invention;
FIG. 3 is a front elevational view of the general assembly of the present invention; FIG. 4 is a cross-sectional view A-A of FIG. 2 of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of a straightening apparatus according to the present invention;
FIG. 7 is a schematic view of the moving forming mechanism of the present invention;
FIG. 8 (a) is a schematic view of a flat die drive mechanism of the present invention and (b) is an exploded schematic view of the flat die drive mechanism;
FIG. 9 is a schematic view of a flat die of the present invention; FIG. 10 is a schematic view of the tensioner of the present invention;
FIG. 11 is a schematic view of the rear limiting mechanism of the present invention, (C) is an enlarged view of the portion C in FIG. 5, and (d) is a top view of the portion (C);
in the figure: i, I ', upper and lower frames, I01-guide chute, I02 ' -left and right limit holes, I ' 01-lower frame boss, II-pole plate straightening device, II 01-straightening device frame, II 02 ' -upper and lower straightening rollers, III-moving forming mechanism, III 01-pole plate moving forming motor, III 02-bevel gear transmission, III 03-lead screw, III 04-moving platform, III 05-nut, III 06-guide wheel, III 07-first forming rubber roller, III 08-second forming rubber roller, III 09-third forming rubber roller, III 10-fourth forming rubber roller, IV-plane hard film transmission mechanism, IV 01-plane hard film, IV 02 ' -left and right limit baffle, IV 03-supporting platform, IV 04-lower boss, IV 05-eccentric shaft, IV 06-eccentric shaft bracket, 07-left buffer spring, 07 ' -right buffer spring, IV ' right buffer spring, IV 08-bearing, IV 09-shaft coupling, IV 10-plane hard die moving motor, IV 11-screw, V-tensioning device, V01-tensioning device frame, V02-upper tensioning roller, V03-lower tensioning roller, V04 ' -upper tensioning roller left boss, V05 ' -lower tensioning roller left boss, right boss, VI ' -front and rear limiting mechanisms, VI 01-U type limiting pin, VI 02-electromagnet nut, VI 03-screw rod, VI 04-compression spring and VII-pole plate forming blank.
Detailed Description
A reciprocating type forming device for a metal polar plate of a fuel cell is shown in figures 1, 2, 3, 4 and 5, when a metal blank needs to be processed and produced, the metal forming blank VII is straightened by a polar plate straightening device II and then enters a forming station of a plane hard die IV 01 to stop, a plane hard die moving motor IV 10 drives an eccentric shaft IV 05 to rotate upwards by 180 degrees, and the plane hard die IV 01 is pushed to move upwards to the forming station; the limiting mechanisms VI and VI' arranged on the front side and the rear side of the upper rack I work simultaneously, the electromagnet nut VI 02 is powered off, the compression spring VI 04 pushes the U-shaped limiting pin VI 01 to move towards the rack, and the supporting platform IV 03 is clamped to be dead, so that the plane hard film IV 01 stops at a forming station; the polar plate moving forming mechanism III is characterized in that a moving forming motor III 01 arranged at the upper left end of an upper rack I drives a lead screw III 03 arranged in the upper rack I to rotate through a bevel gear III 02, and the lead screw III 03 drives a moving platform III 04 to roll and form the blank VII on the plane hard film IV 01 sequentially by a fourth forming roller, a third forming roller, a second forming roller and a first forming roller from an initial position along the polar plate advancing direction; after rolling forming, a moving platform III 04 in the polar plate moving forming mechanism III returns to an initial position under the driving of a screw III 03, the limiting mechanisms on the front side and the rear side work simultaneously, an electromagnet nut VI 02 is electrified, the electromagnet nut VI 02 recovers magnetism, and a U-shaped limiting pin VI 01 is attracted to return to the initial position; the plane hard die moving motor IV 10 drives the eccentric shaft IV 05 to rotate downwards by 180 degrees, so that the plane hard die IV 01 is separated from the forming station; and (4) after the rolled metal pole plate is taken away from the forming station by a tension device V, forming the metal pole plate in the next period.
Claims (1)
1. A reciprocating type forming device for a metal polar plate of a fuel cell is characterized by comprising: the device comprises an upper frame (I), a lower frame (I '), a polar plate straightening device (II), a movable forming mechanism (III), a plane hard die transmission mechanism (IV), a tensioning device (V) and front and rear limiting mechanisms (VI and VI'); the pole plate straightening device (II) is arranged at the left upper end of the upper rack (I), and an upper straightening roller (II 02, II 02') and a lower straightening roller (II 01) are arranged in the straightening rack (II); the movable forming mechanism (III) is characterized in that a movable forming motor (III 01) arranged at the left end of the upper rack (I) drives a lead screw (III 03) arranged in the upper rack (I) to rotate through a bevel gear (III 02), and the lead screw (III 03) is screwed with a nut (III 05) fixed on a forming movable platform (III 04); a first forming rubber roller, a second forming rubber roller, a third forming rubber roller and a fourth forming rubber roller (III 07, III 08, III 09, III 10) are arranged below the forming moving platform (III 04) in parallel, guide wheels (III 06) are respectively fixed on the left side and the right side of the upper surface of the forming moving platform (III 04), and the guide wheels (III 06) are positioned in guide sliding chutes (I01) on the front side and the rear side of the upper rack (I); the surface layers of the first, second, third and fourth forming rubber rollers are provided with polyurethane rubber, and the diameters of the polyurethane rubber are reduced along the advancing direction of the polar plate according to an arithmetic progression with the tolerance of 0.01 mm-0.1 mm; the plane hard die transmission mechanism IV is characterized in that a plane hard die moving motor (IV 10) arranged outside the lower rack (I ') is connected with an eccentric shaft (IV 05) arranged in the lower rack (I ') through a coupling (IV 09), and the left neck part and the right neck part of the eccentric shaft (IV 05) are supported on a butt-jointed frame of the upper rack (I) and the lower rack (I ') through a bearing (IV 08); the eccentricity of an eccentric shaft (IV 05) is positioned on an eccentric shaft bracket (IV 06), the eccentricity of the eccentric shaft corresponds to a supporting platform (IV 03), the eccentric shaft bracket (IV 06) is connected with the supporting platform (IV 03) through a screw (IV 11), the supporting platform (IV 03) is arranged on the eccentric shaft bracket (IV 06), the middle parts of the eccentric shaft bracket (IV 06) are butted to form an eccentric shaft hole, and a left buffer spring (IV 07 ') and a right buffer spring (IV 07 ') are arranged between a lower rack boss (I ' 01) and a lower boss (IV 04); the left and right limiting baffle plates (IV 02, IV 02') are fixedly connected to the middle part of the upper end surface of the supporting platform (IV 03) through screws; the upper surface of the plane hard die is provided with patterns with the same shape as the polar plate; the tensioning device (V) is arranged at the upper right end of the upper frame (I), an upper tensioning roller (V02, V03) and a lower tensioning roller (V01) are arranged in the tensioning device frame (V01), the diameter of the upper tensioning roller and the diameter of the lower tensioning roller are set to be D, and the diameter of a left boss (V04, V04 ', V05') and a right boss (V04, V04 ', V05') of the upper tensioning roller and the lower tensioning roller is 1.1D-1.2D; the front and rear limiting mechanisms (VI and VI ') comprise a U-shaped limiting pin (VI 01), an electromagnet nut (VI 02), a screw rod (VI 03) and a compression spring (VI 04), the root of the screw rod (VI 03) is welded on the side wall of the upper frame (I), a central round hole of the U-shaped limiting pin (VI 01) is movably sleeved on the screw rod (VI 03), the left and right side legs of the screw rod are respectively inserted into the left and right limiting holes (I02 and I02 ') on the wall of the upper frame (I), the compression spring (VI 04) is movably sleeved between the U-shaped limiting pin (VI 01) and the electromagnet nut (VI 02), and the installation requirements of the positions of the left and right limiting holes (I02 and I02 ') are as follows: when the eccentric shaft (IV 05) in the upper frame pushes the supporting platform (IV 03) to the highest position, the left and right legs of the U-shaped limiting pin (VI 01) can just abut against the lower bottom surface of the supporting platform (IV 03).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449806.0A CN112570452B (en) | 2020-12-09 | 2020-12-09 | Reciprocating type forming equipment for metal polar plate of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011449806.0A CN112570452B (en) | 2020-12-09 | 2020-12-09 | Reciprocating type forming equipment for metal polar plate of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112570452A true CN112570452A (en) | 2021-03-30 |
| CN112570452B CN112570452B (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011449806.0A Active CN112570452B (en) | 2020-12-09 | 2020-12-09 | Reciprocating type forming equipment for metal polar plate of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112570452B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639855A (en) * | 2022-03-25 | 2022-06-17 | 山东国创燃料电池技术创新中心有限公司 | Rolling process of metal polar plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114639855A (en) * | 2022-03-25 | 2022-06-17 | 山东国创燃料电池技术创新中心有限公司 | Rolling process of metal polar plate |
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| Publication number | Publication date |
|---|---|
| CN112570452B (en) | 2023-03-28 |
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