Polar plate stamping device, stamping die and polar plate production method

Abstract

The invention provides a polar plate stamping device, a stamping die and a polar plate production method. The polar plate stamping device comprises a bottom plate; an upper working table of the punching machine can drive the top plate to move in the vertical direction; the thickness direction of the supporting plate is the vertical direction, and the supporting plate is located between the bottom plate and the top plate in the vertical direction; an upper die of each first die is arranged on the lower surface of the top plate, and a lower die of each first die is arranged on the upper surface of the supporting plate; an upper die of each second die is arranged on the lower surface of the supporting plate, and a lower die of each second die is arranged on the upper surface of the bottom plate; and the mold opening part is connected with at least one of the supporting plate and the upper mold of the second mold, and the mold opening part is used for driving the upper mold of the second mold to move upwards. Therefore, the polar plate stamping device has the advantages that the polar plate forming precision and the forming efficiency can be improved conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of fuel cells, and in particular to a polar plate stamping device, a stamping die and a polar plate production method. Background Art

[0002] A hydrogen fuel cell is a chemical device that directly converts chemical energy stored in hydrogen fuel and oxidant into electrical energy. As one of the key components of a hydrogen fuel cell stack, the bipolar plate has the functions of separating reaction gases, collecting and conducting current, supporting membrane electrodes, and realizing rapid heat dissipation and drainage of the entire fuel cell system. In the related art, the metal plates of hydrogen fuel cells are often mass-produced by stamping. The production process includes blanking, forming, and multiple punching and trimming. That is, the stamping production process of the entire plate is divided into multiple steps. Each step requires a punch press and a mold matching the corresponding process. The entire plate production process requires multiple punch presses and multiple sets of molds, which greatly increases production costs and reduces production efficiency, which is not conducive to the mass production of metal plates at low cost and high efficiency. In addition, by adopting the method of continuous stamping with progressive dies and multiple processes, although the number of punch presses and molds is reduced, the stamping process is increased, resulting in a complex mold structure, which is not conducive to the maintenance of the mold; at the same time, the size of the progressive multi-process stamping die is large, resulting in an increase in the size of the punch press table, which puts forward more stringent requirements on the parallelism and rigidity of the punch press table, and increases the investment cost. This greatly increases production costs and reduces production efficiency, which is not conducive to the large-scale, low-cost and high-efficiency production of metal plates. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiments of the present invention provide a plate stamping device, a stamping die and a plate production method.

[0004] The plate punching device according to the embodiment of the present invention comprises:

[0005] A bottom plate, the thickness direction of the bottom plate is the up-down direction, and the bottom plate is used to be arranged on the lower working table of the punch press;

[0006] A top plate, wherein the thickness direction of the top plate is the up-down direction, the top plate is located above the bottom plate, and the top plate is used to be arranged at the bottom of the upper working table of the punch press, and the upper working table of the punch press can drive the top plate to move in the up-down direction;

[0007] A support plate, wherein the thickness direction of the support plate is the up-down direction, and the support plate is located between the bottom plate and the top plate in the up-down direction;

[0008] At least one set of first molds, the upper mold of each of the first molds is arranged on the lower surface of the top plate, and the lower mold of the first mold is arranged on the upper surface of the support plate;

[0009] At least one set of second molds, wherein the upper mold of each of the second molds is arranged on the lower surface of the support plate, and the lower mold of the second mold is arranged on the upper surface of the bottom plate;

[0010] A mold opening part is connected to at least one of the support plate and the upper mold of the second mold, and the mold opening part is used to drive the upper mold of the second mold to move upward.

[0011] Therefore, the electrode plate punching device according to the embodiment of the present invention has the advantages of facilitating the improvement of the electrode plate forming accuracy and the improvement of the forming efficiency.

[0012] In some embodiments, the mold opening part is an elastic support member, and the elastic support member can use elastic force to drive the upper mold of the second mold to move upward, the bottom of the elastic support member is arranged on at least one of the lower mold of the second mold and the bottom plate, and the top of the elastic support member is arranged on at least one of the upper mold of the second mold and the lower surface of the support plate;

[0013] The upper work surface of the punch press can drive the top plate to move downward so that the first mold and the second mold are closed. The upper work surface of the punch press can drive the top plate to move upward so that the first mold is opened. The elastic support member can use elastic force to drive the upper mold of the second mold to move upward so that the second mold is opened.

[0014] In some embodiments, the first mold and the second mold are both multiple;

[0015] A plurality of the first molds are arranged at intervals along a first direction, or a plurality of the first molds are arranged in a matrix;

[0016] A plurality of the second molds are arranged at intervals along the first direction, or a plurality of the second molds are arranged in a matrix;

[0017] The plurality of the first dies and the plurality of the second dies include at least one of a blanking die, a forming die, and a punching die.

[0018] In some embodiments, each of the support plates includes a plurality of spaced-apart sub-support plates, the upper surface of each of the sub-support plates is provided with at least one lower mold of the first mold, and the lower surface of each of the sub-support plates is provided with at least one upper mold of the second mold;

[0019] The plurality of the first dies and the plurality of the second dies include at least one blanking die, at least one forming die and a plurality of punching dies.

[0020] In some embodiments, there are a plurality of support plates, and the plurality of support plates are spaced apart in the up-down direction, the lower mold of the first mold is disposed on the upper surface of the uppermost one of the plurality of support plates, and the upper mold of the second mold is disposed on the lower surface of the lowermost one of the plurality of support plates;

[0021] A third mold is provided between two adjacent support plates in the up-down direction, an upper mold of the third mold is provided on the lower surface of the upper one of the two adjacent support plates, and a lower mold of the third mold is provided on the upper surface of the lower one of the two adjacent support plates;

[0022] Each of the third molds has an elastic support member matched with it. The upper work surface of the punch press can drive the top plate to move downward so that the first mold, the second mold and the third mold are closed. The upper work surface of the punch press drives the top plate to move upward so that the first mold can be opened. The elastic support member can use elastic force to drive the upper mold of the second mold and the upper mold of the third mold to move upward so that the second mold and the third mold can be opened.

[0023] In some embodiments, each of the second molds has a plurality of the elastic support members matched therewith;

[0024] The bottom of the elastic support member is arranged on the lower mold of the second mold, and the top of the elastic support member is arranged on the support plate;

[0025] The upper die and the lower die of each of the first die and the second die are respectively provided with guide pins and guide sleeves which can cooperate with each other.

[0026] In some embodiments, the upper mold of the first mold includes a first upper mold base and a first upper mold plate, and the top plate, the first upper mold base and the first upper mold plate are connected in sequence;

[0027] The lower mold of the first mold includes a first lower mold base and a first lower mold plate, and the support plate, the first lower mold base and the first lower mold plate are connected in sequence;

[0028] One of the first upper die seat and the first lower die seat is provided with a plurality of outer guide sleeves, the other of the first upper die seat and the first lower die seat is provided with a plurality of outer guide pins, one of the first upper die plate and the first lower die plate is provided with a plurality of inner guide sleeves, the other of the first upper die plate and the first lower die plate is provided with a plurality of inner guide pins, when the molds are closed, the plurality of outer guide pins of the first die can be extended into the plurality of outer guide sleeves of the first die in a one-to-one correspondence, and the plurality of inner guide pins of the first die can be extended into the plurality of inner guide sleeves of the first die in a one-to-one correspondence;

[0029] The upper mold of the second mold includes a second upper mold base and a second upper mold plate, and the support plate, the second upper mold base and the second upper mold plate are connected in sequence;

[0030] The lower mold of the second mold includes a second lower mold base and a second lower mold plate, and the bottom plate, the second lower mold base and the second lower mold plate are connected in sequence;

[0031] One of the support plate and the second lower mold base is provided with a plurality of outer guide sleeves, the other of the support plate and the second lower mold base is provided with a plurality of outer guide pins, one of the second upper mold plate and the second lower mold plate is provided with a plurality of inner guide sleeves, and the other of the second upper mold plate and the second lower mold plate is provided with a plurality of inner guide pins. When the molds are closed, the plurality of outer guide pins of the second mold can be extended into the plurality of outer guide sleeves of the second mold in a one-to-one correspondence, and the plurality of inner guide pins of the second mold can be extended into the plurality of inner guide sleeves of the second mold in a one-to-one correspondence.

[0032] In some embodiments, the plurality of the first dies and the plurality of the second dies include a blanking die, a forming die, a primary punching die, and a secondary punching die;

[0033] The upper die of the blanking die is provided with a blanking cutter head and a positioning hole punch, and the lower die of the blanking die is provided with a waste storage device, a limit block, a blanking cutter edge and a blanking cutter head avoidance groove;

[0034] The upper die and the lower die of the forming die are respectively provided with forming plate flow channels that can cooperate with each other, and the lower die of the forming die is provided with positioning pins and limit blocks;

[0035] The lower die of the primary punching die is provided with a waste storage device, a limit block and a positioning pin;

[0036] The lower die of the secondary punching die is provided with a waste storage device and a limit block.

[0037] The present invention also proposes a stamping die, including a punch press and a pole plate stamping device, wherein the pole plate stamping device is the above-mentioned pole plate stamping device, wherein the bottom plate of the pole plate stamping device is arranged on the lower working table of the punch press, and the upper working table of the punch press can drive the top plate of the pole plate stamping device to move in the up and down directions.

[0038] The present invention also proposes a method for producing a plate using the above-mentioned stamping die, wherein the plate stamping device of the stamping die includes at least one set of first dies and at least one set of second dies, wherein the first dies and the second dies include a blanking die, a forming die and a punching die, and the plate production method includes the following steps:

[0039] The strip is fed into the blanking die by using a feeding mechanism, and the strip is cut after the blanking die is closed to obtain a plate blank;

[0040] After the blanking die is opened, the electrode blank in the blanking die is moved into the forming die by a manipulator, and after the forming die is closed, the electrode blank is formed into an electrode sample;

[0041] After the forming mold is opened, the plate sample in the forming mold is moved into the punching mold by a manipulator, and after the punching mold is closed, the plate sample is punched to obtain a finished plate;

[0042] Among them, the upper working table of the punch press drives the top plate to move downward so that the first mold and the second mold are closed, and the upper working table of the punch press drives the top plate to move upward to open the first mold, and the mold opening part can drive the upper mold of the second mold to move upward to open the second mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 4 is a front view of a plate punching device according to an embodiment of the present invention.

[0044] Figure 2 is a three-dimensional diagram of a plate punching device according to an embodiment of the present invention.

[0045] Figure 3 is a three-dimensional diagram of a plate punching device according to an embodiment of the present invention.

[0046] Figure 4 is a three-dimensional diagram of a plate punching device according to an embodiment of the present invention.

[0047] Figure 5 is a three-dimensional diagram of a plate punching device according to an embodiment of the present invention.

[0048] Reference numerals:

[0049] 1. Bottom plate;

[0050] 2. Top plate;

[0051] 3. Support plate, 31. Sub-support plate;

[0052] 4. first mold, 41. first upper mold base, 42. first upper mold plate, 43. first lower mold base, 44. first lower mold plate;

[0053] 5. second mold, 51. second upper mold base, 52. second upper mold plate, 53. second lower mold base, 54. second lower mold plate;

[0054] 6. elastic support member, 61. outer guide sleeve, 62. outer guide column;

[0055] 7. blanking die, 71. blanking cutter head, 72. positioning hole punch, 73. blanking blade, 74. blanking cutter head avoidance groove;

[0056] 8. forming die, 81. forming plate flow channel;

[0057] 91. a primary punching die, 92. a secondary punching die, 93. a waste collecting device, 94. a limit block, 95. a positioning pin. DETAILED DESCRIPTION

[0058] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0059] The following describes the plate punching device according to an embodiment of the present invention with reference to the accompanying drawings. Figures 1 to 5 As shown, the plate stamping device according to the embodiment of the present invention includes a bottom plate 1, a top plate 2, a support plate 3, at least one set of first molds 4, at least one set of second molds 5 and a mold opening portion.

[0060] The thickness direction of the bottom plate 1 is the up-down direction, and the bottom plate 1 is used to be arranged on the lower working surface of the punch press. The thickness direction of the top plate 2 is the up-down direction, and the top plate 2 is located above the bottom plate 1. The top plate 2 is used to be arranged at the bottom of the upper working surface of the punch press, and the upper working surface of the punch press can drive the top plate 2 to move in the up-down direction. The thickness direction of the support plate 3 is the up-down direction, and the support plate 3 is located between the bottom plate 1 and the top plate 2 in the up-down direction.

[0061] The upper mold of each first mold 4 is arranged on the lower surface of the top plate 2, and the lower mold of the first mold 4 is arranged on the upper surface of the support plate 3. The upper mold of each second mold 5 is arranged on the lower surface of the support plate 3, and the lower mold of the second mold 5 is arranged on the upper surface of the bottom plate 1. The mold opening part is connected to at least one of the support plate 3 and the upper mold of the second mold 5, and the mold opening part is used to drive the upper mold of the second mold 5 to move upward.

[0062] The plate punching device according to the embodiment of the present invention is provided with a support plate 3 between the bottom plate 1 and the top plate 2, so that a first mold 4 can be provided between the top plate 2 and the support plate 3, and a second mold 5 can be provided between the bottom plate 1 and the support plate 3. When mold closing is required, the upper work surface of the punch press can drive the top plate 2 to move downward, so that the upper mold of the first mold 4 can move downward and close the mold with the lower mold of the first mold 4. When the top plate 2 continues to move downward, the first mold 4 after mold closing can drive the support plate 3 to move downward, so that the upper mold of the second mold 5 can move downward and close the mold with the lower mold of the second mold 5. When mold opening is required, the upper work surface of the punch press can drive the top plate 2 to move upward, so that the upper mold of the first mold 4 can move upward and open the mold with the lower mold of the first mold 4. After the first mold 4 is opened, the mold opening part can drive the upper mold of the second mold 5 to move upward and open the mold with the lower mold of the second mold 5.

[0063] The plate punching device according to the embodiment of the present invention is provided with a support plate 3 between the bottom plate 1 and the top plate 2, thereby a plurality of molds (a first mold 4 and a second mold 5) can be stacked in the vertical direction, thereby reducing the occupied area of ​​the plurality of molds, that is, reducing the size requirements for the lower work surface of the punching machine, thereby facilitating the levelness and rigidity of the work surface, and further facilitating the improvement of the plate forming accuracy. Integrating a plurality of molds in one device can reduce costs and improve work efficiency.

[0064] Therefore, the electrode plate punching device according to the embodiment of the present invention has the advantages of facilitating the improvement of the electrode plate forming accuracy and the improvement of the forming efficiency.

[0065] like Figures 1 to 5 As shown, in some embodiments, the mold opening part is an elastic support member 6, and the elastic support member 6 can use elastic force to drive the upper mold of the second mold 5 to move upward. The bottom of the elastic support member 6 is arranged on at least one of the lower mold and the bottom plate 1 of the second mold 5, and the top of the elastic support member 6 is arranged on at least one of the upper mold of the second mold 5 and the lower surface of the support plate 3. The elastic force of the elastic support member 6 is used to drive the upper mold of the second mold 5 and the support plate 3 to move upward. Specifically, after the upper working table of the punch press can drive the top plate 2 to move downward and make the first mold 4 close, the upper working table of the punch press continues to move downward and overcome the elastic force of the elastic support member 6, so that the upper mold and the support plate 3 of the second mold 5 move downward, so that the second mold 5 is closed, so that the upper working table of the punch press can drive the top plate 2 to move downward to make the first mold 4 and the second mold 5 close. The upper worktable of the punch press drives the top plate 2 to move upward to open the first mold 4. During the opening process of the first mold 4, the restriction of the upper worktable of the punch press on the second mold 5 and the support plate 3 gradually disappears, so that the elastic support member 6 can use the elastic force to drive the upper mold of the second mold 5 to move upward to open the second mold 5.

[0066] In some embodiments, the elastic support member 6 is a nitrogen cylinder or other elements with elastic support capabilities.

[0067] like Figures 1 to 5 As shown, in some embodiments, the first mold 4 and the second mold 5 are both multiple. The multiple first molds 4 and the multiple second molds 5 include at least one of a blanking mold 7, a forming mold 8, and a punching mold. That is, the first mold 4 and the second mold 5 are both molds required for forming the plate.

[0068] The plurality of first molds 4 are arranged at intervals along the first direction, or the plurality of first molds 4 are arranged in a matrix. The plurality of second molds 5 are arranged at intervals along the first direction, or the plurality of second molds 5 are arranged in a matrix. The arrangement of the plurality of first molds 4 and the plurality of second molds 5 on the same layer can be set according to specific needs. For example, the plurality of first molds 4 are arranged at intervals along the left-right direction, and the plurality of second molds 5 are arranged at intervals along the left-right direction.

[0069] like Figures 1 to 5 As shown, in some embodiments, each support plate 3 includes a plurality of spaced-apart sub-support plates 31, and the upper surface of each sub-support plate 31 is provided with a lower mold of at least one first mold 4, and the lower surface of each sub-support plate 31 is provided with an upper mold of at least one second mold 5. Specifically, each sub-support plate 31 is connected to a first mold 4 and a second mold 5 adjacent in the up and down directions. Each support plate 3 includes a plurality of spaced-apart sub-support plates 31, which can facilitate the disassembly and assembly and maintenance of multiple molds, and can also reduce the influence between adjacent molds in the horizontal direction. For example, the upper surface of each sub-support plate 31 is provided with a lower mold of a first mold 4, and the lower surface of each sub-support plate 31 is provided with an upper mold of a second mold 5.

[0070] In some embodiments, there are multiple support plates 3 (not shown in the figure), and the multiple support plates 3 are arranged at intervals in the up and down directions. The lower mold of the first mold 4 is arranged on the upper surface of the topmost one of the multiple support plates 3, and the upper mold of the second mold 5 is arranged on the lower surface of the bottommost one of the multiple support plates 3.

[0071] A third mold is provided between two adjacent support plates 3 in the vertical direction, an upper mold of the third mold is provided on the lower surface of the upper one of the two adjacent support plates 3, and a lower mold of the third mold is provided on the upper surface of the lower one of the two adjacent support plates 3. In other words, a plurality of support plates 3 form a plurality of layers, so that a greater number of molds can be stacked in the vertical direction, so as to further reduce the footprint of the molds.

[0072] Each third mold has an elastic support member 6 matched therewith, the upper work surface of the punch press can drive the top plate 2 to move downward so that the first mold 4, the second mold 5 and the third mold are molded together, the upper work surface of the punch press drives the top plate 2 to move upward so that the first mold 4 can be opened, and the elastic support member 6 can use elastic force to drive the upper mold of the second mold 5 and the upper mold of the third mold to move upward so that the second mold 5 and the third mold can be opened. Specifically, the lower surface of the upper one of the two adjacent support plates 3 is connected to the top of the elastic support member 6, and the upper surface of the lower one of the two adjacent support plates 3 is connected to the bottom of the elastic support member 6.

[0073] like Figures 1 to 5 As shown, the upper and lower molds of each of the first mold 4 and the second mold 5 are respectively provided with guide pins and guide sleeves that can cooperate with each other. Thus, when the first mold 4 and the second mold 5 are closed, the guide pins can extend into the guide sleeves, thereby facilitating the mold closing and positioning.

[0074] like Figures 1 to 5 As shown, in some embodiments, the upper mold of the first mold 4 includes a first upper mold base 41 and a first upper mold plate 42, and the top plate 2, the first upper mold base 41 and the first upper mold plate 42 are connected in sequence. The lower mold of the first mold 4 includes a first lower mold base 43 and a first lower mold plate 44, and the support plate 3, the first lower mold base 43 and the first lower mold plate 44 are connected in sequence. Specifically, the first upper mold base 41 is arranged on the top plate 2, the first upper mold plate 42 is arranged on the first upper mold base 41, and the first upper mold plate 42 can be replaced. The first lower mold base 43 is arranged on the upper surface of the support plate 3, the first lower mold plate 44 is arranged on the first lower mold base 43, and the first lower mold plate 44 can be replaced, and the replaced first lower mold plate 44 and the first upper mold plate 42 can cooperate with each other.

[0075] A plurality of outer guide sleeves 61 are provided on one of the first upper die seat 41 and the first lower die seat 43, and a plurality of outer guide pillars 62 are provided on the other of the first upper die seat 41 and the first lower die seat 43. A plurality of inner guide sleeves are provided on one of the first upper die plate 42 and the first lower die plate 44, and a plurality of inner guide pillars are provided on the other of the first upper die plate 42 and the first lower die plate 44. When the mold is closed, the plurality of outer guide pillars 62 of the first die 4 can be extended into the plurality of outer guide sleeves 61 of the first die 4 in a one-to-one correspondence, and the plurality of inner guide pillars of the first die 4 can be extended into the plurality of inner guide sleeves of the first die 4 in a one-to-one correspondence. The plurality of outer guide sleeves 61 of the first die 4 and the plurality of outer guide pillars 62 of the first die 4 are positioned in a one-to-one correspondence, and the plurality of inner guide sleeves of the first die 4 and the plurality of inner guide pillars of the first die 4 are positioned in a one-to-one correspondence, so that the positioning can be accurate. For example, a plurality of outer guide sleeves 61 are provided on the first lower die seat 43, and a plurality of outer guide pillars 62 are provided on the first upper die seat 41. The first lower mold plate 44 is provided with a plurality of inner guide sleeves, and the first upper mold plate 42 is provided with a plurality of inner guide pillars.

[0076] like Figures 1 to 5 As shown, the upper mold of the second mold 5 includes a second upper mold base 51 and a second upper mold plate 52, and the support plate 3, the second upper mold base 51 and the second upper mold plate 52 are connected in sequence. The lower mold of the second mold 5 includes a second lower mold base 53 and a second lower mold plate 54, and the bottom plate 1, the second lower mold base 53 and the second lower mold plate 54 are connected in sequence. Specifically, the second upper mold base 51 is arranged on the lower surface of the support plate 3, and the second upper mold plate 52 is arranged on the second upper mold base 51, and the second upper mold plate 52 can be replaced. The second lower mold base 53 is arranged on the bottom plate 1, and the second lower mold plate 54 is arranged on the second lower mold base 53, and the second lower mold plate 54 can be replaced, and the replaced second upper mold plate 52 and the second lower mold plate 54 can cooperate with each other.

[0077] A plurality of outer guide sleeves 61 are provided on one of the support plate 3 and the second lower die base 53, and a plurality of outer guide pillars 62 are provided on the other of the support plate 3 and the second lower die base 53. A plurality of inner guide sleeves are provided on one of the second upper die plate 52 and the second lower die plate 54, and a plurality of inner guide pillars are provided on the other of the second upper die plate 52 and the second lower die plate 54. When the mold is closed, the plurality of outer guide pillars 62 of the second die 5 can be extended into the plurality of outer guide sleeves 61 of the second die 5 in a one-to-one correspondence, and the plurality of inner guide pillars of the second die 5 can be extended into the plurality of inner guide sleeves of the second die 5 in a one-to-one correspondence. The plurality of outer guide sleeves 61 of the second die 5 and the plurality of outer guide pillars 62 of the second die 5 are matched with each other for positioning in a one-to-one correspondence, and the plurality of inner guide sleeves of the second die 5 and the plurality of inner guide pillars of the second die 5 are matched with each other for positioning in a one-to-one correspondence, so that the positioning can be accurate. For example, a plurality of outer guide sleeves 61 are provided on the second lower die base 53, and a plurality of outer guide pillars 62 are provided on the support plate 3. The second lower mold plate 54 is provided with a plurality of inner guide sleeves, and the second upper mold plate 52 is provided with a plurality of inner guide pillars.

[0078] like Figures 1 to 5 As shown, in some embodiments, each second mold 5 has a plurality of elastic support members 6 matched therewith. The bottom of the elastic support member 6 is arranged on the lower mold of the second mold 5, and the top of the elastic support member 6 is arranged on the support plate 3 (lower surface). For example, each second mold 5 has four elastic support members 6 matched therewith, and the four elastic support members 6 are arranged on the outer sides of the four corners of the second mold 5. For example, the bottom of the elastic support member 6 is arranged on the second lower mold base 53 of the second mold 5.

[0079] The plurality of first dies 4 and the plurality of second dies 5 include at least one blanking die 7, at least one forming die 8 and a plurality of punching dies. Specifically, the plurality of punching dies can perform multi-stage punching to form finished plates.

[0080] The plurality of first dies 4 and the plurality of second dies 5 include a blanking die 7, a forming die 8, a primary punching die 91 and a secondary punching die 92. For example, there are two first dies 4, and the two first dies 4 are respectively a primary punching die 91 and a secondary punching die 92 arranged in the left-right direction. There are two second dies 5, and the two second dies 5 are respectively a blanking die 7 and a forming die 8 arranged in the left-right direction. The upper dies of the primary punching die 91 and the secondary punching die 92 are fixed on the top plate 2 by bolts or clamps, and the lower dies of the primary punching die 91 and the secondary punching die 92 are fixed on the upper surface of the support plate 3 by bolts or clamps. The upper dies of the blanking die 7 and the forming die 8 are fixed on the lower surface of the support plate 3 by bolts or clamps, and the lower dies of the blanking die 7 and the forming die 8 are fixed on the bottom plate 1 by bolts or clamps. That is, the primary punching die 91 and the secondary punching die 92 are located above the blanking die 7 and the forming die 8.

[0081] like Figures 3 to 5 As shown, the upper die of the blanking die 7 is provided with a blanking cutter head 71 and a positioning hole punch 72, and the lower die of the blanking die 7 is provided with a waste storage device 93, (multiple) limiting blocks 94, a blanking blade 73 and a blanking cutter head avoidance groove 74. Specifically, the blanking cutter head 71 cooperates with the blanking blade 73, so as to facilitate the blanking die 7 to close the mold and cut the strip material so as to form the plate blank. The blanking cutter head avoidance groove 74 is an avoidance groove to avoid the blanking cutter head 71 from colliding and causing damage during blanking. Limiting blocks 94 are set in the blanking die 7 to ensure that the thin metal strip can smoothly enter the blanking die 7 for blanking. The positioning hole punch 72 is used for the processing of the internal positioning holes required for the plate forming. The upper die of the blanking die 7 is provided with an avoidance groove that cooperates with (multiple) limiting blocks 94.

[0082] The upper and lower molds of the forming mold 8 are respectively provided with forming plate flow channels 81 that can cooperate with each other, and the lower mold of the forming mold 8 is provided with positioning pins 95 and limit blocks 94. Specifically, the forming plate flow channels 81 can cooperate with each other to complete the forming of the plate. The positioning pins 95 in the forming mold 8 can be inserted into the positioning holes of the plate blank, and the plurality of limit blocks 94 can limit the peripheral side of the plate blank to complete the positioning of the plate blank. The upper mold of the forming mold 8 is provided with an avoidance groove that cooperates with the positioning pins 95 and the limit blocks 94.

[0083] The lower die of the primary punching die 91 is provided with a waste storage device 93, a stopper 94 and a positioning pin 95. Specifically, the upper die of the primary punching die 91 is provided with a punching tool so as to perform primary punching on the formed plate. The stopper 94 and the positioning pin 95 of the primary punching die 91 can position the formed plate, and the waste storage device 93 of the primary punching die 91 can store waste. The upper die of the primary punching die 91 is provided with an avoidance groove that cooperates with the positioning pin 95 and the stopper 94.

[0084] The lower die of the secondary punching die 92 is provided with a waste storage device 93 and a stop block 94. Specifically, the upper die of the secondary punching die 92 is provided with a punching tool so as to perform secondary punching on the formed plate. The stop block 94 of the secondary punching die 92 can position the formed plate, and the waste storage device 93 of the secondary punching die 92 can store waste. The upper die of the secondary punching die 92 is provided with an avoidance groove that cooperates with the stop block 94.

[0085] The waste storage device 93 can be in the form of a conveyor belt, and the waste can be removed by the rotation of the conveyor belt. Alternatively, the waste storage device 93 can be a pull-out waste trough, and the waste trough can be pulled out to clean the waste after a certain amount of waste is reached.

[0086] The present invention also proposes a stamping die. The stamping die according to an embodiment of the present invention includes a punching machine and a plate stamping device. The plate stamping device is a plate stamping device according to an embodiment of the present invention. The bottom plate of the plate stamping device is arranged on the lower working table of the punching machine. The upper working table of the punching machine can drive the top plate of the plate stamping device to move in the up and down directions. The stamping die according to an embodiment of the present invention includes a multi-station continuous stamping forming die, which can realize the processes of blanking, forming and punching of the plate on a punching machine, and can realize automated production by cooperating with a manipulator.

[0087] Therefore, the stamping die according to the embodiment of the present invention has the advantages of facilitating the improvement of the forming accuracy of the electrode plate and improving the forming efficiency.

[0088] The present invention also proposes a method for producing a polar plate using a stamping die according to an embodiment of the present invention. The polar plate stamping device of the stamping die according to the embodiment of the present invention includes at least one group of first dies 4 and at least one group of second dies 5. The first dies 4 and the second dies 5 include a blanking die 7, a forming die 8 and a punching die. That is, the polar plate stamping device of the stamping die according to the embodiment of the present invention includes three types of dies: a blanking die 7, a forming die 8 and a punching die.

[0089] The method for producing a plate according to an embodiment of the present invention comprises the following steps:

[0090] The strip is fed into the blanking die 7 by means of a feeding mechanism, and the strip is cut to obtain the electrode blank after the blanking die 7 is closed. Specifically, a whole roll of thin metal strip enters the blanking die 7 through the feeding mechanism and the flattening mechanism. Driven by the punch press, the upper die of the blanking die 7 moves downward to close with the lower die of the blanking die 7. During the closing process, the blanking cutter head 71 cooperates with the blanking blade 73 to complete the blanking and obtain a flat sheet of the blank. At the same time, during the closing process, the positioning hole punch 72 set in the upper die of the blanking die 7 cooperates with the avoidance hole of the lower die to punch out the internal positioning hole required for forming. The punch press opens the die to complete the blanking of the electrode plate blank and obtain a flat sheet of the blank.

[0091] After the blanking die 7 is opened, the plate blank in the blanking die 7 is moved to the forming die 8 by a manipulator, and the plate blank is formed into a plate sample after the forming die 8 is closed. Specifically, after the blanking of the titanium material is completed, the manipulator grabs the blank flat sheet and transfers it to the forming die 8, and ensures that the positioning holes processed during blanking can cooperate with the positioning pins 95 set in the lower die of the forming die 8, and the titanium material is positioned, and the manipulator withdraws from the forming die 8. Driven by the punch press, the upper die of the forming die 8 moves downward and cooperates with the lower die of the forming die 8 to close the die, and the blank flat sheet is stamped and formed. The punch press opens the die to complete the stamping of the titanium material.

[0092] After the forming mold 8 is opened, the plate sample in the forming mold 8 is moved to the punching mold by a manipulator, and the plate sample is punched after the punching mold is closed to obtain a finished plate. For example, the manipulator transfers the formed plate sample to the first-level punching mold 91 just above the forming mold 8. Driven by the punch press, the upper mold of the first-level punching mold 91 moves downward to cooperate with the lower mold of the first-level punching mold 91 to cut off the excess material at the excess material position of the plate, and the first-level punching mold 91 completes the first punching of the plate sample, wherein the cut waste is discharged through the waste storage device 93. Then the manipulator transfers the sample punched for the first time to the second-level punching mold 92 just above the blanking mold 7, and the second-level punching mold 92 performs the second punching of the plate, and finally obtains a qualified plate.

[0093] Among them, the upper working table of the punch press drives the top plate 2 to move downward so that the first mold 4 and the second mold 5 are closed, and the upper working table of the punch press drives the top plate 2 to move upward to open the first mold 4, and the mold opening part can drive the upper mold of the second mold 5 to move upward to open the second mold 5. That is, in the entire stamping process, the blanking, forming and punching and trimming processes of the plate are carried out synchronously, and the transfer process of the plate is completed under the condition that the punch press drives the upper mold plates of the next-level punching mold 91 and the second-level punching mold 92 to reach the upper dead point, and the elastic support member 6 supports the upper mold plates of the blanking mold 7 and the forming mold 8 to open, so as to ensure the continuity of the plate stamping forming.

[0094] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0095] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0096] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0098] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0099] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A plate stamping device, characterized in that: include: A bottom plate, the thickness direction of the bottom plate is the up-down direction, and the bottom plate is used to be arranged on the lower working table of the punch press; A top plate, wherein the thickness direction of the top plate is the up-down direction, the top plate is located above the bottom plate, and the top plate is used to be arranged at the bottom of the upper working table of the punch press, and the upper working table of the punch press can drive the top plate to move in the up-down direction; A support plate, wherein the thickness direction of the support plate is the up-down direction, and the support plate is located between the bottom plate and the top plate in the up-down direction; At least one set of first molds, the upper mold of each of the first molds is arranged on the lower surface of the top plate, and the lower mold of the first mold is arranged on the upper surface of the support plate; At least one set of second molds, wherein the upper mold of each of the second molds is arranged on the lower surface of the support plate, and the lower mold of the second mold is arranged on the upper surface of the bottom plate; A mold opening part is connected to at least one of the support plate and the upper mold of the second mold, and the mold opening part is used to drive the upper mold of the second mold to move upward.

2. The plate punching device according to claim 1, characterized in that: The mold opening part is an elastic support member, and the elastic support member can drive the upper mold of the second mold to move upward by elastic force, the bottom of the elastic support member is arranged on at least one of the lower mold of the second mold and the bottom plate, and the top of the elastic support member is arranged on at least one of the upper mold of the second mold and the lower surface of the support plate; The upper work surface of the punch press can drive the top plate to move downward so that the first mold and the second mold are closed. The upper work surface of the punch press can drive the top plate to move upward so that the first mold is opened. The elastic support member can use elastic force to drive the upper mold of the second mold to move upward so that the second mold is opened.

3. The plate punching device according to claim 2, characterized in that: The first mold and the second mold are both multiple; A plurality of the first molds are arranged at intervals along a first direction, or a plurality of the first molds are arranged in a matrix; A plurality of the second molds are arranged at intervals along the first direction, or a plurality of the second molds are arranged in a matrix; The plurality of the first dies and the plurality of the second dies include at least one of a blanking die, a forming die, and a punching die.

4. The plate punching device according to claim 3, characterized in that: Each of the support plates comprises a plurality of spaced-apart sub-support plates, the upper surface of each of the sub-support plates being provided with at least one lower mold of the first mold, and the lower surface of each of the sub-support plates being provided with at least one upper mold of the second mold; The plurality of the first dies and the plurality of the second dies include at least one blanking die, at least one forming die and a plurality of punching dies.

5. The plate punching device according to claim 3, characterized in that: There are a plurality of support plates, and the plurality of support plates are arranged at intervals in the up-down direction, the lower mold of the first mold is arranged on the upper surface of the uppermost one of the plurality of support plates, and the upper mold of the second mold is arranged on the lower surface of the lowermost one of the plurality of support plates; A third mold is provided between two adjacent support plates in the up-down direction, an upper mold of the third mold is provided on the lower surface of the upper one of the two adjacent support plates, and a lower mold of the third mold is provided on the upper surface of the lower one of the two adjacent support plates; Each of the third molds has an elastic support member matched with it. The upper work surface of the punch press can drive the top plate to move downward so that the first mold, the second mold and the third mold are closed. The upper work surface of the punch press drives the top plate to move upward so that the first mold can be opened. The elastic support member can use elastic force to drive the upper mold of the second mold and the upper mold of the third mold to move upward so that the second mold and the third mold can be opened.

6. The plate punching device according to claim 4, characterized in that: Each of the second molds has a plurality of the elastic supporting members matched therewith; The bottom of the elastic support member is arranged on the lower mold of the second mold, and the top of the elastic support member is arranged on the support plate; The upper die and the lower die of each of the first die and the second die are respectively provided with guide pins and guide sleeves which can cooperate with each other.

7. The plate punching device according to claim 6, characterized in that: The upper mold of the first mold includes a first upper mold base and a first upper mold plate, and the top plate, the first upper mold base and the first upper mold plate are connected in sequence; The lower mold of the first mold includes a first lower mold base and a first lower mold plate, and the support plate, the first lower mold base and the first lower mold plate are connected in sequence; One of the first upper die seat and the first lower die seat is provided with a plurality of outer guide sleeves, the other of the first upper die seat and the first lower die seat is provided with a plurality of outer guide pins, one of the first upper die plate and the first lower die plate is provided with a plurality of inner guide sleeves, the other of the first upper die plate and the first lower die plate is provided with a plurality of inner guide pins, when the molds are closed, the plurality of outer guide pins of the first die can be extended into the plurality of outer guide sleeves of the first die in a one-to-one correspondence, and the plurality of inner guide pins of the first die can be extended into the plurality of inner guide sleeves of the first die in a one-to-one correspondence; The upper mold of the second mold includes a second upper mold base and a second upper mold plate, and the support plate, the second upper mold base and the second upper mold plate are connected in sequence; The lower mold of the second mold includes a second lower mold base and a second lower mold plate, and the bottom plate, the second lower mold base and the second lower mold plate are connected in sequence; One of the support plate and the second lower mold base is provided with a plurality of outer guide sleeves, the other of the support plate and the second lower mold base is provided with a plurality of outer guide pins, one of the second upper mold plate and the second lower mold plate is provided with a plurality of inner guide sleeves, and the other of the second upper mold plate and the second lower mold plate is provided with a plurality of inner guide pins. When the molds are closed, the plurality of outer guide pins of the second mold can be extended into the plurality of outer guide sleeves of the second mold in a one-to-one correspondence, and the plurality of inner guide pins of the second mold can be extended into the plurality of inner guide sleeves of the second mold in a one-to-one correspondence.

8. The plate punching device according to claim 4, characterized in that: The plurality of the first dies and the plurality of the second dies include a blanking die, a forming die, a primary punching die and a secondary punching die; The upper die of the blanking die is provided with a blanking cutter head and a positioning hole punch, and the lower die of the blanking die is provided with a waste storage device, a limit block, a blanking cutter edge and a blanking cutter head avoidance groove; The upper die and the lower die of the forming die are respectively provided with forming plate flow channels that can cooperate with each other, and the lower die of the forming die is provided with positioning pins and limit blocks; The lower die of the primary punching die is provided with a waste storage device, a limit block and a positioning pin; The lower die of the secondary punching die is provided with a waste storage device and a limit block.

9. A stamping die, characterized in that: It comprises a punch press and a plate stamping device, wherein the plate stamping device is the plate stamping device according to any one of claims 1 to 8, wherein the bottom plate of the plate stamping device is arranged on the lower working surface of the punch press, and the upper working surface of the punch press can drive the top plate of the plate stamping device to move in the up and down directions.

10. A method for producing a plate using the stamping die according to claim 9, characterized in that: The plate punching device of the punching die includes at least one set of first dies and at least one set of second dies, the first dies and the second dies include a blanking die, a forming die and a punching die, and the plate production method includes the following steps: The strip is fed into the blanking die by using a feeding mechanism, and the strip is cut after the blanking die is closed to obtain a plate blank; After the blanking die is opened, the electrode blank in the blanking die is moved into the forming die by a manipulator, and after the forming die is closed, the electrode blank is formed into an electrode sample; After the forming mold is opened, the plate sample in the forming mold is moved into the punching mold by a manipulator, and after the punching mold is closed, the plate sample is punched to obtain a finished plate; Among them, the upper working table of the punch press drives the top plate to move downward so that the first mold and the second mold are closed, and the upper working table of the punch press drives the top plate to move upward to open the first mold, and the mold opening part can drive the upper mold of the second mold to move upward to open the second mold.

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