Forming device for runner groove with large depth-to-width ratio

Abstract

The utility model relates to the technical field of runner groove forming, in particular to a large-depth-to-width-ratio runner groove forming device which comprises a base, a guide column is arranged on the outer wall of the top end of the base, a cover plate is fixedly connected to the outer wall of the top end of the guide column, and a support is fixedly connected to the outer wall of the top end of the cover plate. The forming mechanism is arranged on the outer wall of the bracket; the forming mechanism comprises an electric push rod installed on the outer wall of the top end of the support, one end of a piston rod of the electric push rod is fixedly connected with a lifting frame, an installation groove is formed in the outer wall of the bottom end of the lifting frame, a limiting plate is installed on the inner wall of the installation groove, and a first sliding groove is formed in the outer wall of one side of the cover plate. According to the runner groove forming device, part of internal stress of metal can be released in the forming process through heating, so that the possibility of subsequent deformation is reduced, the template can be quickly replaced according to the forming requirement of the runner groove, the forming of the metal sheet runner groove is more stable, and the forming efficiency of the runner groove forming device is improved.

Description

Technical Field

[0001] This utility model relates to the field of flow channel forming technology, specifically a flow channel forming device with a large depth-to-width ratio. Background Technology

[0002] Metal bipolar plates are prone to deformation or breakage when processed with flow channel structures with high aspect ratios using traditional processing equipment, and it is difficult to ensure consistency in the flow channel structure of metal bipolar plates.

[0003] A search of Chinese patent CN210245626U reveals a processing device for a high aspect ratio metal bipolar plate for fuel cells. Guide posts protrude from the upper surface of a lower template. Several through slots are formed on the upper template corresponding to several forming grooves. A second guide post hole is formed on the upper template corresponding to the guide post. The top of the guide post is located in the second guide post hole of the upper template. At least two limiting posts protrude from the upper surface of a metal sheet mounting block. The metal sheet mounting block is located on the outer side of one end of the lower template. A pressing block is located in the through slot and can be movably extended into the forming groove. A central opening is formed in the middle of the pressing block. A limiting plate can movably pass through the central openings of several pressing blocks. The device processes a flow channel structure with a high aspect ratio and high consistency.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. When the metal sheet is forming the flow channel groove, it may be difficult to control the synchronization of multiple pressing blocks, which may lead to uneven stress on the metal sheet during the forming process, resulting in local deformation or stress concentration. The template cannot be changed quickly according to the flow channel groove forming requirements, and the internal stress of the metal sheet may cause subsequent deformation or cracks, reducing the forming efficiency of the flow channel groove forming device. Utility Model Content

[0005] The purpose of this invention is to provide a flow channel forming device with a large depth-to-width ratio to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model is: a flow channel forming device with a large depth-to-width ratio, including a base, a guide post provided on the top outer wall of the base, a cover plate fixedly connected to the top outer wall of the guide post, a bracket fixedly connected to the top outer wall of the cover plate, and further including;

[0007] A forming mechanism is disposed on the outer wall of the support;

[0008] The forming mechanism includes an electric push rod installed on the outer wall of the top of the support. One end of the piston rod of the electric push rod is fixedly connected to a lifting frame. The bottom outer wall of the lifting frame has an installation groove. A limit plate is installed on the inner wall of the installation groove. A sliding groove is formed on one side outer wall of the cover plate. An upper template is slidably connected to the inner wall of the sliding groove. A sliding groove is formed on one side outer wall of the top of the base. A lower template is slidably connected to the inner wall of the sliding groove. Several through grooves are formed on the top outer wall of the upper template. Several forming grooves are formed on the top outer wall of the lower template. A pressing block is slidably connected to the inner wall of the through groove. A heating element is installed on the bottom inner wall of the sliding groove.

[0009] Preferably, a slide rail is provided on one outer wall of the bottom of the base, an mounting block is slidably connected to the inner wall of the slide rail, and limit posts are fixedly connected to the two outer walls of the top of the mounting block.

[0010] Preferably, a metal sheet is snapped onto the outer wall of the limiting post, and the thickness of the metal sheet is adapted to the distance between the base and the cover plate.

[0011] Preferably, the upper template is located above the lower template, the forming groove and the through groove are adapted in size, and the through groove is distributed in a linear array.

[0012] Preferably, a reset telescopic rod is installed on both outer walls of the bottom end of the lifting frame, and a material blocking block is fixedly connected to one end of the piston rod of the reset telescopic rod. Material blocking holes are opened on both outer walls of the top end of the cover plate, and the material blocking block is slidably connected to the inner wall of the material blocking hole. A reset spring is provided on the inner wall of the reset telescopic rod.

[0013] This utility model provides an improved flow channel forming device with a large depth-to-width ratio, which has the following improvements and advantages compared with the prior art:

[0014] Firstly, this utility model is equipped with a base, cover plate, upper template, lower template, lifting frame, heating element, and pressing block. The pressing block, in conjunction with the forming groove on the lower template, forms a flow channel groove with a corresponding depth-to-width ratio on the outer wall of the metal sheet. When flow channel grooves with different depth-to-width ratios are required, the corresponding lower template and upper template are removed from the base and cover plate and replaced. The pressing block is then used to form a flow channel groove of the required size. The lifting frame presses multiple pressing blocks simultaneously to ensure that the metal sheet is subjected to uniform force to form the flow channel groove. Before the metal sheet flow channel groove is formed, the heating element inside the base is activated to locally heat the metal sheet, making it easier for the metal to be pressed into the required shape without breaking or cracking. Through heating, the metal can release some internal stress during the forming process, thereby reducing the possibility of subsequent deformation. The template can be quickly replaced according to the flow channel groove forming requirements, and the forming of the metal sheet flow channel groove is more stable, improving the forming efficiency of the flow channel groove forming device.

[0015] Secondly, this utility model is equipped with a lifting frame, a reset telescopic rod, and a material blocking block. The material blocking block connected to the reset telescopic rod is set on both sides of the lifting frame. Before pressing, the material blocking block contacts the metal sheet to perform material blocking and limiting treatment, which further improves the stability of the flow channel forming device. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the pressing block of this utility model;

[0019] Figure 3 This is a schematic diagram of the cover plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the base of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. Cover plate; 3. Lower template; 4. Mounting block; 5. Bracket; 6. Electric push rod; 7. Lifting frame; 8. Metal sheet; 9. Pressing block; 10. Limiting plate; 11. Reset telescopic rod; 12. Material blocking block; 13. Upper template; 14. Material blocking hole; 15. Limiting post; 16. Heating plate. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved flow channel forming device with a large depth-to-width ratio. The technical solution of this utility model is as follows:

[0025] like Figures 1-4 As shown, a flow channel forming device with a large depth-to-width ratio includes a base 1, a guide post is provided on the top outer wall of the base 1, a cover plate 2 is fixedly connected to the top outer wall of the guide post, a bracket 5 is fixedly connected to the top outer wall of the cover plate 2, and also includes;

[0026] The molding mechanism is located on the outer wall of the support 5;

[0027] The molding mechanism includes an electric push rod 6 installed on the outer wall of the top of the bracket 5. One end of the piston rod of the electric push rod 6 is fixedly connected to a lifting frame 7. The bottom outer wall of the lifting frame 7 is provided with an installation groove. The inner wall of the installation groove is equipped with a limit plate 10. One side outer wall of the cover plate 2 is provided with a sliding groove 1. The inner wall of the sliding groove 1 is slidably connected to an upper template 13. One side outer wall of the top of the base 1 is provided with a sliding groove 2. The inner wall of the sliding groove 2 is slidably connected to a lower template 3. The top outer wall of the upper template 13 is provided with several through grooves. The top outer wall of the lower template 3 is provided with several molding grooves. The inner wall of the through grooves is slidably connected to a pressing block 9. The bottom inner wall of the sliding groove 2 is equipped with a heating element 16.

[0028] Furthermore, a slide rail is provided on one side of the bottom of the base 1, and an installation block 4 is slidably connected to the inner wall of the slide rail. Limiting posts 15 are fixedly connected to the two outer walls of the top of the installation block 4. A metal sheet 8 is snapped onto the outer wall of the limiting post 15. The thickness of the metal sheet 8 is adapted to the distance between the base 1 and the cover plate 2.

[0029] Furthermore, the upper template 13 is located above the lower template 3, and the forming groove and the through groove are matched in size. The through groove is distributed in a straight array. The outer walls of both sides of the bottom end of the lifting frame 7 are equipped with reset telescopic rods 11. One end of the piston rod of the reset telescopic rod 11 is fixedly connected to a material blocking block 12. The outer walls of both sides of the top end of the cover plate 2 are provided with material blocking holes 14. The material blocking block 12 is slidably connected to the inner wall of the material blocking hole 14. The inner wall of the reset telescopic rod 11 is provided with a reset spring. The material blocking blocks 12 connected to the reset telescopic rod 11 are provided on both sides of the lifting frame 7. Before pressing, the material blocking block 12 first contacts the metal sheet 8 to perform material blocking and limiting treatment, thereby improving the stability of the metal sheet 8 flow channel forming.

[0030] Working principle: When forming the depth-to-width ratio runner channel, the metal sheet 8 is placed on the limiting post 15 of the mounting block 4, and then the metal sheet 8 is pushed between the upper template 13 and the lower template 3. The corresponding pressing block 9 is placed through the through slot of the upper template 13. The electric push rod 6 is activated, and the lifting frame 7 descends to press multiple pressing blocks 9 simultaneously. The pressing blocks 9, in conjunction with the forming groove on the lower template 3, form a runner channel with the corresponding depth-to-width ratio on the outer wall of the metal sheet 8. When runner channels with different depth-to-width ratios need to be formed, the corresponding lower template 3 and upper template 13 are removed from the base 1 and cover plate 2 and replaced. The replaced pressing blocks 9 are used to form a runner channel of the required size. The lifting frame 7 presses multiple pressing blocks 9 simultaneously to ensure that the metal sheet 8 is evenly stressed and forms a flow channel groove. Before the flow channel groove of the metal sheet 8 is formed, the heating plate 16 inside the base 1 is activated to locally heat the metal sheet 8, making it easier for the metal to be pressed into the required shape without breaking or cracking. Through heating, the metal can release some internal stress during the forming process, thereby reducing the possibility of subsequent deformation. The lifting frame 7 is equipped with a material blocking block 12 connected to the reset telescopic rod 11 on both sides. Before pressing, the material blocking block 12 contacts the metal sheet 8 to perform material blocking and limiting treatment, thereby improving the stability of the flow channel groove forming of the metal sheet 8.

[0031] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A flow channel forming device with a large depth-to-width ratio, comprising a base (1), wherein a guide post is provided on the top outer wall of the base (1), a cover plate (2) is fixedly connected to the top outer wall of the guide post, and a bracket (5) is fixedly connected to the top outer wall of the cover plate (2), characterized in that: Also includes; A molding mechanism is disposed on the outer wall of the support (5); The forming mechanism includes an electric push rod (6) installed on the outer wall of the top of the bracket (5). One end of the piston rod of the electric push rod (6) is fixedly connected to a lifting frame (7). The bottom outer wall of the lifting frame (7) is provided with an installation groove. The inner wall of the installation groove is provided with a limit plate (10). One side outer wall of the cover plate (2) is provided with a sliding groove. The inner wall of the sliding groove is slidably connected to an upper template (13). One side outer wall of the top of the base (1) is provided with a sliding groove. The inner wall of the sliding groove is slidably connected to a lower template (3). The top outer wall of the upper template (13) is provided with several through grooves. The top outer wall of the lower template (3) is provided with several forming grooves. The inner wall of the through groove is slidably connected to a pressing block (9). The bottom inner wall of the sliding groove is provided with a heating element (16).

2. The flow channel forming device with a large depth-to-width ratio according to claim 1, characterized in that: A slide rail is provided on one side of the bottom of the base (1), and an installation block (4) is slidably connected to the inner wall of the slide rail. Limiting posts (15) are fixedly connected to the two outer walls of the top of the installation block (4).

3. The flow channel forming device with a large depth-to-width ratio according to claim 2, characterized in that: The outer wall of the limiting post (15) is fitted with a metal sheet (8), the thickness of which is adapted to the spacing between the base (1) and the cover plate (2).

4. The flow channel forming device with a large depth-to-width ratio according to claim 1, characterized in that: The upper template (13) is located above the lower template (3), and the forming groove and the through groove are adapted to each other in size. The through grooves are arranged in a straight array.

5. The flow channel forming device with a large depth-to-width ratio according to claim 1, characterized in that: The bottom of the lifting frame (7) is equipped with two outer walls of a reset telescopic rod (11). One end of the piston rod of the reset telescopic rod (11) is fixedly connected to a material blocking block (12). The top of the cover plate (2) is provided with two outer walls of a material blocking hole (14). The material blocking block (12) is slidably connected to the inner wall of the material blocking hole (14). The inner wall of the reset telescopic rod (11) is provided with a reset spring.

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