CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of priority from Chinese Patent Application No. 202011227947.8, filed on Nov. 6, 2020. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present invention belongs to the technical field of manufacturing of metal polar plates, and particularly relates to a special roller machine for a metal polar plate.

BACKGROUND OF THE PRESENT INVENTION

At present, an ultrathin metal polar plate has been applied to fuel cells, while the batch processing mode of the ultrathin metal polar plates is still traditional punching processing. Punching processing requires a special clamping die and also requires to clamp a next metal plate again after processing is completed each time, which may increase the production cost and may also cause incapability of continuous production and reduce the production efficiency.

SUMMARY OF THE PRESENT INVENTION

The purpose of the present invention is to provide a special roller machine for a metal polar plate, capable of effectively overcoming the disadvantages in the prior art.

The present invention is implemented in such a way that, as shown in FIG. 1, a box body 1 is a square; a circular through hole 2 is processed on the front surface of the box body 1; transversely through upper and lower lug bosses 3, 3′ are manufactured at the upper end and the lower end of the box body 1; a feed inlet 4 and a discharge port 4′ are formed in the upper and middle parts of the left side surface and the right side surface of the box body 1 respectively; holes 5, 5′ for upper and lower fixing screws are formed in the upper part and the lower part of the box body 1 respectively; upper left and right cantilever beam 7, 7′ and lower left and right cantilever beam 8, 8′ are manufactured on the front surfaces of the upper and lower lug bosses 3, 3′ respectively, and the cantilever beams are sleeved with upper left and right spring bodies 9, 9′ and lower left and right spring bodies 10, 10′ respectively; a main transmission device includes a servo motor 11 connected with a lower synchronous gear 18′ at the shaft end of a lower pressing roller 17′ through a safety coupling 12, a reduction gearbox 13, a transmission shaft 14, a cross coupling 15 and a spline housing 16; a pressing adjustment structure connected with the main transmission device is wholly mounted in the circular through hole 2 formed in the box body 1; as shown in FIGS. 2 and 3, left and right bearings 19, 19′ mounted on left and right shaft necks of the upper and lower pressing rollers 17, 17′ are connected and mounted in grooves of upper and lower rotating blocks 22, 22′ through corresponding left and right bearing seats 20, 20′ and left and right bearing seat fixing plates 21, 21′, and pressure sensors are placed at the bottoms of the grooves; and the sector upper and lower rotating blocks 22, 22′ are mounted symmetrically at the upper part, the lower part, the left part and the right part of the adjustment structure respectively with the same structure. For convenience of illustration, the upper part is described as an example for structure description: an upper supporting seat ring 25 is manufactured at the arch-shaped top end of the upper rotating block 22; a pin shaft hole 26 is formed in the center of the upper supporting seat ring 25 and is hinged to an upper connecting rod 28 through a pin shaft 27, and the other end of the upper connecting rod 28 is connected with an upper servo electric cylinder 30 supported on an upper rotating sleeve 29; the upper servo electric cylinder 30 is mounted in an upper supporting seat 35 through the upper rotating sleeve 29, and the upper supporting seat is fixedly mounted on a step of the box body 1; upper left and right rotating block supporting beams 23, 23′ are manufactured on the front surface of the upper rotating block 22, and round holes formed in the lower ends of the upper left and right spring bodies 9, 9′ are sleeved on the upper left and right rotating block supporting beams 23, 23′ respectively; upper left and right arch-shaped plates 31, 31′ are mounted at the upper left part and the upper right part of the surface of the circular through hole of the box body between the upper and lower rotating blocks 22, 22′ through fixing screws 33 respectively; and an upper adjustment bolt 34 used for adjusting the position of the arch-shaped plate is mounted in an upper adjustment bolt hole 6 formed in the box body 1; threads at the top end part of the upper adjustment bolt 34 are engaged with threads on the side of the upper left arch-shaped plate 31; and the bolt is rotated to drive arch-shaped displacement, and the other end part of the bolt is tightened against through the corresponding spring.

The beneficial effects of the present invention are as follows:

The special roller machine for the metal polar plate proposed by the present invention can solve the problems of production cost and production efficiency in the punching forming process and can also solve the problems that the forming accuracy of new rollers is low, the adjustment range is too small, and the forming accuracy requirement of a micro roller cannot be satisfied; and the equipment is low in cost, can conduct batch production, is convenient in mounting and changing a roller and may achieve batch production by only several special models of rollers to produce a series of products.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a final assembly of the present invention;

FIG. 2 is a structural diagram of a pressing device in a box body of the present invention;

FIG. 3 is an exploded view of the final assembly of the present invention;

FIG. 4 is a schematic diagram of connection between the box body and an arch-shaped plate of the present invention;

FIG. 5 is a side view and a B-B section view of the present invention;

FIG. 6 is an enlarged view of an arch-shaped plate of the present invention; and

FIG. 7 is a schematic diagram of the box body of the present invention.

In the drawings: 1—box body; 2—circular through hole; 3, 3′—upper and lower lug bosses; 4, 4′—feed inlet and discharge port; 5, 5′—upper and lower fixing screw holes; 6, 6′—upper left and right adjustment bolt holes; 7, 7′—upper left and right cantilever beams; 8, 8′—lower left and right cantilever beams; 9, 9′—upper left and right spring bodies; 10, 10′—lower left and right spring bodies; 11—servo motor; 12—safety coupling; 13—reduction gearbox; 14—transmission shaft; 15—cross coupling; 16—spline housing; 17, 17′—upper and lower pressing rollers; 18, 18′—upper and lower synchronous gears; 19—left and right bearings; 20, 20′—left and right bearing seats; 21, 21′—left and right bearing seat fixing plates; 22, 22′—upper and lower rotating blocks; 23, 23′—upper left and right rotating block supporting beams; 24, 24′—lower left and right rotating block supporting beams; 25, 25′—upper and lower supporting seat rings; 26—pin shaft hole; 27—pin shaft; 28, 28′—upper and lower connecting rods; 29, 29′—upper and lower rotating sleeves; 30, 30′—upper and lower servo electric cylinders; 31, 31′—upper left and right arch-shaped plates; 32, 32′—lower left and right arch-shaped plates; 33, 33′—upper and lower fixing screws; 34, 34′—upper and lower adjustment bolts; 35, 35′—upper and lower supporting seats.

DETAILED DESCRIPTION OF THE PRESENT INVENTION

The present invention will be further described below in detail in combination with the accompanying drawings and embodiments.

The present invention is implemented in such a way that, as shown in FIGS. 1 and 2, for main transmission of the present invention, a servo motor 11 drives upper and lower synchronous gears 18, 18′ and upper and lower pressing rollers 17, 17′ to rotate under the driving of a safety coupling 12, a reduction gearbox 13, a transmission shaft 14 and a spline housing 15 for the rolling and production of a metal polar plate; radial fine adjustment of the upper and lower pressing rollers is implemented in such a way that upper and lower servo electric cylinders 30, 30′ drive the upper and lower pressing rollers 17, 17′ to conduct slight rotation through upper and lower connecting rods 28, 28′ and upper and lower rotating blocks 22, 22′ hinged to the upper and lower connecting rods 28, 28′, so that radial fine adjustment of the upper and lower pressing rollers is achieved; upper left and right arch-shaped plates 31, 31′ and lower left and right arch-shaped plates 32, 32′ which are mounted on the inner surface of the circular through hole formed in the front surface of the box body 1 are fixedly connected to the inner surface of the circular through hole formed in the box body through fixing bolts 33; positions of the arch-shaped plates are adjusted through threaded engagement between the adjustment bolts 34 and the arch-shaped plates; the effect of the arch-shaped plates is to limit the rotation of the upper and lower rotating blocks; and upper left and right spring bodies and lower left and right spring bodies exert the effect of supporting the upper and lower rotating blocks.

The above only describes preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All the technical solutions within the concept of the present invention shall belong to the protection scope of the present invention. It should be noted that for those ordinary skilled in the art, several improvements and modifications without departing from the principle of the present invention shall be regarded as within the protection scope of the present invention.