Thin plate fastening and forming device

Abstract

The utility model discloses a thin plate fastening and forming device which is arranged below a press machine and connected with a pressing rod of the press machine. Comprising a puncturing module and a flattening module; the puncturing module comprises an upper puncturing assembly and a lower puncturing assembly which are oppositely arranged; the upper puncturing assembly comprises a puncturing block; the lower puncturing assembly comprises a lower puncturing die; a puncture hole is formed in the lower puncture die; the flattening module comprises an upper flattening assembly and a lower flattening assembly which are oppositely arranged. The upper flattening assembly comprises a flattening block; the lower flattening assembly comprises a lower flattening base. The utility model has the beneficial effects that the two sheets are fixed together through the puncturing module and the flattening module, so that the high-strength connection is realized, the strength similar to welding can be achieved, and particularly, the connection of the sheets is more advantageous; and the problems of thermal deformation, hydrogen embrittlement and the like cannot be caused in the machining process, so that higher reliability is achieved, and the integrity and stability of connection can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, in particular to a thin plate fastening and forming device. Background Art

[0002] In the process of equipment manufacturing, it is inevitable to reliably connect two components in large quantities. The connection method must ensure connection reliability while also meeting the requirements of rapid mass production to ensure processing efficiency.

[0003] The connection methods that meet the above two requirements in the prior art are divided into welding, screw connection, gluing and mortise and tenon structure. Among them, the welding method can refer to patent CN118023681A, "A welding auxiliary device for thin plate welded parts and its welding method", that is, in the prior art including this patent, welding is achieved by driving the welding head close to the welding position by a welding machine, and stably connecting the two parts by means of high temperature and high pressure of electric current or heating. Therefore, during welding, the two parts are heated to the melting point by a heat source to fuse them together. This causes local thermal stress and deformation in the parts during the welding process, so it is necessary to operate with caution. In addition, this connection method is more difficult when processing aluminum alloys or aluminum-magnesium alloys, and has certain limitations.

[0004] The screw connection method can refer to patent CN204884931U, "A thin plate threaded hole anti-slip tooth structure, static contact, conductive connection plate and circuit breaker". In the prior art including this patent, the outer surface with threads is in contact with the inner surface with threads, and one of the parts with threaded structures is rotated to achieve the connection between the two parts. Therefore, screw connection is to fix the two parts by interlocking the threads, and after the connection, the connection may become loose or the thread may slip due to insufficient interlocking, etc., and the connector needs to be checked and tightened regularly.

[0005] The gluing method can refer to patent CN101121275A, "Connection method for repairing veneer of plywood". The prior art including this patent connects two parts by coating adhesives such as hot melt adhesive on the parts and aligning and abutting the two parts before the adhesive solidifies. Using adhesive to bond two parts together can be applicable to the connection of different materials, making up for the shortcomings of the welding method. However, the strength of adhesives varies, and it is necessary to select a suitable adhesive to ensure the reliability of the connection; at the same time, it is necessary to ensure the cleanliness of the surface of the parts and the bonding area before applying the adhesive, otherwise it will affect the stability of the connection between the two parts.

[0006] The mortise and tenon connection method can refer to patent CN219159339U, "A double-plate mortise and tenon connection structure", where the two plates are provided with mutually cooperating mortise and tenon structures to achieve the connection of the two plates. This method requires making the mortise and tenon structure on the two parts respectively, so that the two structures are embedded and fixed to each other. This requires more precision in the production of the mortise and tenon structure, otherwise the fit between the two is not high, affecting the connection stability, so this connection method has higher requirements for process processing.

[0007] Therefore, in order to solve the above problems, designing a thin plate fastening and forming device is an important technical problem that technicians in this field need to solve. Utility Model Content

[0008] The purpose of the utility model is to solve the problems existing in the prior art and to provide a thin plate fastening and forming device.

[0009] The purpose of the utility model is achieved through the following technical solutions:

[0010] A thin plate fastening and forming device is arranged below a press and connected to a pressing rod of the press; it comprises a piercing module and a flattening module;

[0011] The puncture module group includes an upper puncture component and a lower puncture component which are arranged relatively; the upper puncture component at least includes a puncture block arranged on the lower surface of the fixed plate; the lower puncture component at least includes a lower puncture mold arranged above the base; a puncture hole is formed on the lower puncture mold for the puncture block to penetrate; the press drives the puncture block to move downward until the puncture block penetrates the two layers of thin plates and is located in the puncture hole, so that the two layers of thin plates form a cut tongue;

[0012] The flattening module includes an upper flattening component and a lower flattening component that are relatively arranged; the upper flattening component at least includes a flattening block arranged below the fixed block; the lower flattening component at least includes a lower flattening seat arranged above the base; the press drives the flattening block to move downward until the flattening block, the two layers of thin plates and the lower flattening seat body abut against each other, so that the cut tongue on the thin plate fits the plate surface.

[0013] Preferably, the upper puncture assembly is fixedly connected to the fixing plate, and an inverted T-shaped support rod seat is screwed on the upper surface of the fixing plate, and bolts connected to the pressure rod are evenly distributed on the periphery of the columnar part of the support rod seat, so that the two are detachably connected.

[0014] Preferably, the lower surface of the fixed plate is fixedly connected with a puncture upper template, and the puncture block is fixedly connected to the lower surface of the puncture upper template.

[0015] Preferably, the puncture block is arranged vertically to the puncture upper template, an escape space is formed upward at the bottom of the puncture block, and the escape space is centrally arranged along the width direction of the puncture block; the width of the puncture blocks located on both sides of the escape space is smaller than the width of the puncture hole, and the side wall of the puncture block away from the escape space and the inner wall of the puncture hole are located on the same axis.

[0016] Preferably, the puncture upper template is connected to the puncture plate through a guide column; the puncture block passes through the puncture plate; when the puncture module is working, the guide column is forced to shrink; when the puncture module completes its work, the guide column is gradually reset.

[0017] Preferably, the upper part of the base is connected to the lower puncture mold through a support platform; a guide shaft is connected between the support platform and the fixed plate.

[0018] Preferably, the fixed block is connected to the pressure rod via the support rod seat; the lower part of the fixed block is connected to the flattening block via a flattening seat; and the bottom surface of the flattening block is a plane.

[0019] Preferably, the base is connected to the lower pressing flat seat via a support seat; and the guide shaft is provided between the lower pressing flat seat and the fixing block.

[0020] Preferably, the upper surface of the lower flattening seat is provided with wear-resistant blocks, the wear-resistant blocks are located below the flattening blocks, and each flattening block corresponds to two wear-resistant blocks; the upper surfaces of a group of the wear-resistant blocks are relatively inclined.

[0021] Preferably, the puncturing block and the flattening block are both made of alloy steel material; and the wear-resistant block is made of hard alloy material.

[0022] The advantages of the technical solution of the utility model are mainly reflected in:

[0023] The two thin plates are fixed together by the puncture module and the flattening module to achieve a high-strength connection, which can achieve a strength similar to that of welding, especially for the connection of thin plates. In addition, there will be no thermal deformation during the processing, and no problems such as hydrogen embrittlement will be caused. Therefore, it has higher reliability and can ensure the integrity and stability of the connection.

[0024] The puncture block is set to be smaller than the inner diameter of the puncture hole, and the outer wall of the puncture block is in contact with the inner wall of the puncture hole, so that the cut tongue formed by the thin plate during the puncture process will be located between the inner wall of the puncture block and the puncture hole, rather than puncturing a through hole in the thin plate, so that the flattening module can fix the position of the two thin plates;

[0025] The guide pin is designed to be retractable, so that the piercing block can pass through the piercing plate. After the piercing is completed and the press is closed to form a neutral state, the guide pin drives the fixed plate and the piercing block to gradually reset, so as to reduce the driving energy required by the press. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 : Assembly diagram of the puncture module of the preferred embodiment of the utility model;

[0027] Figure 2 : A three-dimensional diagram of the puncture module of a preferred embodiment of the utility model;

[0028] Figure 3 : A front view of the puncture module of a preferred embodiment of the utility model;

[0029] Figure 4 : A side view of the puncture module of a preferred embodiment of the utility model;

[0030] Figure 5 : Assembly diagram of the flattening module of the preferred embodiment of the utility model;

[0031] Figure 6 : A three-dimensional diagram of a flattening module according to a preferred embodiment of the utility model;

[0032] Figure 7 : Front view of the flattening module of the preferred embodiment of the utility model;

[0033] Figure 8 : Side view of the flattening module of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0034] The purpose, advantages and features of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0035] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0036] A thin plate fastening and forming device is arranged below the press machine 9 and connected to the press rod 91 of the press machine 9. Figures 1 to 4 As shown, a thin plate fastening and forming device at least includes a puncture module 1, specifically, the puncture module 1 includes an upper puncture component 11 and a lower puncture component 12 arranged relatively. Among them, the upper puncture component 11 at least includes a puncture block 111 arranged on the lower surface of the fixed plate 110. The lower puncture component 12 at least includes a lower puncture mold 121 arranged above the base 120. The lower puncture mold 121 is formed with a puncture hole 1210 for the puncture block 111 to penetrate; the press drives the puncture block 111 to move downward until the puncture block 111 penetrates the two layers of thin plates and is located in the puncture hole 1210, so that the two layers of thin plates form a cut tongue.

[0037] Further, such as Figures 2 to 4 As shown, the upper puncture assembly 11 is fixedly connected to the fixing plate 110, and an inverted T-shaped support rod seat 100 is screwed to the upper surface of the fixing plate 110, and bolts connected to the pressure rod are evenly distributed on the periphery of the columnar part of the support rod seat 100, so that the two can be detachably connected.

[0038] like Figures 2 to 4 As shown, the lower surface of the fixing plate 110 is fixedly connected to a puncturing upper template 112 , and the puncturing block 111 is fixedly connected to the lower surface of the puncturing upper template 112 .

[0039] Furthermore, the piercing block 111 is vertically arranged with respect to the piercing upper template 112. Figures 2 to 3 The avoidance space 1110 is shown, and the avoidance space 1110 is arranged in the center along the width direction of the puncture block 111. The width of the puncture blocks 111 located on both sides of the avoidance space 1110 is smaller than the width of the puncture hole 1210, and the side wall of the puncture block 111 away from the avoidance space 1110 is located on the same axis as the inner wall of the puncture hole 1210. The puncture block 111 is set smaller than the inner diameter of the puncture hole 1210, and the outer wall of the puncture block 111 is fitted with the inner wall of the puncture hole 1210, which can ensure that the cut tongue formed by the thin plate during the puncture process will be located between the inner wall of the puncture block 111 and the puncture hole 1210; and the cut tongues formed by puncturing the same puncture block 111 are arranged oppositely.

[0040] like Figures 2 to 3As shown, the puncture upper template 112 is connected to the puncture plate 114 through the guide column 113; the puncture block 111 passes through the puncture plate 114. The puncture upper template 112 and the puncture plate 114 can be stably connected by the guide column 113 to enhance the connection stability. In addition, when the puncture module 1 is working, the guide column 113 is forced to shrink; when the puncture module 1 completes the work, the guide column 113 is gradually reset. The guide column 113 is designed to be retractable, which facilitates the puncture block 111 to pass through the puncture plate 114, and after the puncture is completed and the press 9 is closed to form a neutral state, the guide column 113 drives the fixed plate 110 and the puncture block 111 to gradually reset, so as to reduce the driving energy required by the press.

[0041] The upper part of the base 120 is connected to the lower piercing mold 121 through a support platform 122. Further, in order to enhance the connection stability between the upper piercing assembly 11 and the lower piercing assembly 12, the present application preferably connects a guide shaft 102 between the support platform 122 and the fixing plate 110. The guide shaft 102 can ensure the connection stability of the two and also ensure the coaxiality of the upper piercing assembly 11 with the lower piercing assembly 12 during the lifting process, thereby ensuring that the piercing block 111 can effectively and quickly pierce the thin plate.

[0042] like Figure 5 As shown, a thin plate fastening and forming device also includes a flattening module 2. Specifically, as Figures 6 to 8 As shown, the flattening module 2 includes an upper flattening assembly 21 and a lower flattening assembly 22 which are arranged relatively to each other; wherein, the upper flattening assembly 21 at least includes a flattening block 211 arranged below the fixed block 210. The lower flattening assembly 22 at least includes a lower flattening seat 221 arranged above the base 220. The press drives the flattening block 211 to move downward until the flattening block 211, the two layers of thin plates and the main body of the lower flattening seat 221 abut against each other, so that the cut tongue on the thin plate fits the plate surface.

[0043] Further, such as Figures 6 to 8 As shown, the fixed block 210 is connected to the pressure rod 91 through the support rod seat 100. Specifically, the support rod seat 100 is connected to the outer surface of the pressure rod 91 through bolts around it, so as to realize a reliable connection between the fixed block 210 and the pressure rod 91. The lower part of the fixed block 210 is connected to the flattening block 211 through the flattening seat 212; that is, the flattening seat 212 and the fixed block 210 are stably connected by the connection method disclosed in the prior art such as bolts, and the flattening seat 212 is stably connected to the flattening block 211. Figure 7As shown, the bottom surface of the flattening block 211 is a plane, through which a uniform and stable force is applied to the two layers of thin plates after the tongue is formed. When the press 9 drives the fixing block 210 and drives the flattening block 211 to descend to a certain position, the tongue will be flattened to achieve a fastening connection between the two layers of thin plates. According to the test, the connection force between the thin plates can be enhanced by about 20 times after processing using this application.

[0044] In addition, in the present application, the puncture block 111 and the flattening block 211 are preferably made of alloy steel; further, the puncture block 111 and the flattening block 211 are preferably made of carbon (C), silicon (Si), manganese (Mn), chromium (Cr), nickel (Ni), sulfur (S) and phosphorus (P); the percentage of each component is preferably carbon (C) 0.37-0.44, silicon (Si) 0.17-0.37, manganese 0.50-0.80, chromium (Cr) 0.80-1.10, nickel (Ni) ≤0.30, sulfur (S) ≤0.035 and phosphorus (P) ≤0.035. After testing experiments, it was found that the tensile strength of the puncture block 111 and the flattening block 211 is ≥980MPa, the yield strength is ≥785MPa, the elongation is ≥9%, the hardness is ≤217HB, and the impact toughness is ≥63J. Therefore, the piercing block 111 and the flattening block 211 have good flexibility and ductility, can bear heavy loads and are not easy to break, so that they are still reliable under high stress conditions when processing parts including thin plates. In addition, the piercing block 111 and the flattening block 211 also have good heat treatment performance, and their mechanical properties can be modified according to specific requirements.

[0045] like Figures 6 to 8 As shown, the base 220 is connected to the lower pressing flat seat 221 through a support seat 222; the guide shaft 102 is arranged between the lower pressing flat seat 221 and the fixed block 210. The guide shaft 102 can realize a stable connection between the lower pressing flat seat 221 and the fixed block 210, and plays a guiding role in the process of the fixed block 210 moving relative to the lower pressing flat seat 221, ensuring the coaxiality of the two and the effectiveness of flattening the thin plate.

[0046] like Figure 6As shown, the upper surface of the lower flattening seat 221 is provided with a wear-resistant block 223, and the wear-resistant block 223 is located below the flattening block 211, and in the present application, it is preferred that each flattening block 211 corresponds to two wear-resistant blocks 223; the upper surfaces of a group of wear-resistant blocks 223 are relatively inclined. By relatively tilting the upper surfaces of the wear-resistant blocks 223, it can be ensured that when the cut tongue is flattened, the cut tongue will be relatively bent, and the cut tongue is placed to bend toward the position of the puncture hole, thereby achieving a reliable connection between the two thin plates. In the present application, it is preferred that the wear-resistant block 223 is made of cemented carbide material. Since cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy technology, it has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance. In particular, its high hardness and wear resistance remain basically unchanged even at a temperature of 500°C, and it still has a very high hardness at 1000°C, so its service life is long. Placing it on the lower flattening seat 221 in conjunction with the flattening block 211 can ensure effective flattening of the cut tongue while also protecting the lower flattening seat 221, thereby extending the service life of the overall grasping device.

[0047] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A thin plate fastening and forming device, arranged below a press machine (9) and connected to a press rod (91) of the press machine; characterized in that: It comprises a puncturing module (1) and a flattening module (2); The piercing module (1) comprises an upper piercing component (11) and a lower piercing component (12) which are arranged opposite to each other; the upper piercing component (11) comprises at least a piercing block (111) arranged on the lower surface of the fixing plate (110); the lower piercing component (12) comprises at least a lower piercing module (121) arranged above the base (120); a piercing hole (1210) is formed on the lower piercing module (121) for facilitating the piercing block (111) to penetrate; the press drives the piercing block (111) to move downward until the piercing block (111) penetrates the two layers of thin plates and is located in the piercing hole (1210), so that the two layers of thin plates form a cut tongue; The flattening module (2) comprises an upper flattening component (21) and a lower flattening component (22) which are arranged relatively to each other; the upper flattening component (21) comprises at least a flattening block (211) arranged below a fixed block (210); the lower flattening component (22) comprises at least a lower flattening seat (221) arranged above a base (220); the press machine drives the flattening block (211) to move downward until the flattening block (211), two layers of thin plates and the main body of the lower flattening seat (221) abut against each other, so that the cut tongue on the thin plate fits the plate surface.

2. A thin plate fastening and forming device according to claim 1, characterized in that: The upper piercing assembly (11) is fixedly connected to the fixing plate (110), and an inverted T-shaped support rod seat (100) is screwed onto the upper surface of the fixing plate (110), and bolts connected to the pressure rod are evenly distributed on the outer periphery of the columnar portion of the support rod seat (100), thereby achieving a detachable connection between the two.

3. A thin plate fastening and forming device according to claim 2, characterized in that: The lower surface of the fixed plate (110) is fixedly connected to a puncturing upper template (112), and the puncturing block (111) is fixedly connected to the lower surface of the puncturing upper template (112).

4. A thin plate fastening and forming device according to claim 3, characterized in that: The puncturing block (111) is arranged vertically to the puncturing upper template (112); an escape space (1110) is formed upwardly at the bottom of the puncturing block (111), and the escape space (1110) is arranged centrally along the width direction of the puncturing block (111); the width of the puncturing block (111) located on both sides of the escape space (1110) is smaller than the width of the puncturing hole (1210), and the side wall of the puncturing block (111) away from the escape space (1110) and the inner wall of the puncturing hole (1210) are located on the same axis.

5. A thin plate fastening and forming device according to claim 4, characterized in that: The puncture upper template (112) is connected to the puncture plate (114) via a guide column (113); the puncture block (111) penetrates the puncture plate (114); when the puncture module (1) is working, the guide column (113) is forced to shrink; when the puncture module (1) completes its work, the guide column (113) is gradually reset.

6. A thin plate fastening and forming device according to claim 5, characterized in that: The upper portion of the base (120) is connected to the lower puncturing die (121) via a support platform (122); a guide shaft (102) is connected between the support platform (122) and the fixing plate (110).

7. A thin plate fastening and forming device according to claim 6, characterized in that: The fixed block (210) is connected to the pressure rod via the support rod seat (100); the lower part of the fixed block (210) is connected to the flattening block (211) via a flattening seat (212); and the bottom surface of the flattening block (211) is a plane.

8. A thin plate fastening and forming device according to claim 7, characterized in that: The base (220) is connected to the downward pressing flat seat (221) via a support seat (222); the guide shaft (102) is provided between the downward pressing flat seat (221) and the fixing block (210).

9. A thin plate fastening and forming device according to claim 8, characterized in that: The upper surface of the lower flattening seat (221) is provided with a wear-resistant block (223), the wear-resistant block (223) is located below the flattening block (211), and each flattening block (211) corresponds to two wear-resistant blocks (223); the upper surfaces of a group of the wear-resistant blocks (223) are relatively inclined.

10. A thin plate fastening and forming device according to claim 9, characterized in that: The puncturing block (111) and the flattening block (211) are both made of alloy steel material; and the wear-resistant block (223) is made of hard alloy material.

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