Stamping die for automobile metal plate support

Abstract

The utility model discloses an automobile sheet metal support stamping die, and relates to the technical field of automobile body trial-manufacturing. The discharging plate is arranged below the protruding part of the male die, and a groove penetrating up and down is formed in the discharging plate; the female die is connected to the lower surface of the discharging plate, and a discharging space for containing a to-be-stamped plate is defined by the female die and the groove; the male die, the discharging plate and the female die are consistent in outline, and the protruding height of the male die, the thickness of the discharging plate and the concave depth of the female die are all the same as the thickness of a to-be-stamped plate. The thickness of the male die, the thickness of the discharging plate and the thickness of the female die are all consistent with the thickness of the plate, the area B and the area C with the radius of the bending portion consistent with the thickness of the plate are obtained, the problem that a bending machine is limited by the bending radius and the bending length and cannot meet the requirement for manufacturing of the area B and the area C is solved, the workpiece manufacturing capacity is improved, and the types of self-made metal plate supports are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body trial production, in particular to a stamping die for an automobile sheet metal bracket. Background Art

[0002] There are currently two conventional manufacturing solutions for commonly used automotive sheet metal brackets. When the sheet metal bracket is a bendable part that can be manufactured using a press brake, the process technician prepares a self-made part process card to guide the operator using the press brake. When the sheet metal part cannot be manufactured solely through the bending process, the process technician proposes an outsourcing process and, through price comparison and bidding, entrusts the production to a supplier with manufacturing capabilities.

[0003] like Figure 1 As shown in the figure, a commonly used automotive sheet metal bracket has three bending features: A, B, and C. The features of region A can be achieved using a press brake, while the planes of regions B and C have a height difference from the plane of the sheet metal bracket body, and this height difference is consistent with the thickness of the sheet metal bracket. Because the thickness of the sheet metal bracket is very small, that is, the bending radius and bending length of the connection between regions B and C and the sheet metal bracket body are very small. The press brake is limited by the bending radius and bending length and cannot meet the requirements of manufacturing regions B and C. If the production is commissioned to a supplier through price comparison procurement, it is necessary to build large molds and purchase raw materials. The process is cumbersome, resulting in a long production cycle, which cannot meet the needs of rapid response of product projects and is costly. Utility Model Content

[0004] The purpose of the utility model is to provide a stamping die for an automobile sheet metal bracket. The utility model realizes special areas on the sheet metal bracket that cannot be achieved by a bending machine, improves the manufacturing capacity, increases the types of self-made sheet metal brackets, shortens the manufacturing cycle, and reduces the manufacturing cost.

[0005] The utility model provides the following solutions:

[0006] The utility model describes a stamping die for an automobile sheet metal bracket, comprising

[0007] Punch;

[0008] A discharge plate, the discharge plate is arranged below the raised portion of the punch, and the discharge plate is provided with a groove running through the upper and lower parts;

[0009] A concave die, the concave die being connected to the lower surface of the discharge plate, the concave die and the groove enclosing a discharge space for accommodating the sheet material to be punched;

[0010] The outer contours of the punch, the discharge plate and the die are consistent; the protruding height of the punch, the thickness of the discharge plate and the recessed depth of the die are all the same as the thickness of the sheet material to be punched.

[0011] Preferably, the convex mold comprises a convex mold base plate and a convex mold plate;

[0012] The convex plate is connected to the lower surface of the convex plate base, and the thickness of the convex plate is the same as the thickness of the sheet material to be punched.

[0013] Preferably, the male mold plate and the male mold base plate are connected by plug welding.

[0014] Preferably, the upper surface of the discharge plate is provided with a guide column, and the male mold base plate is provided with a guide positioning hole at a position corresponding to the guide column.

[0015] Preferably, the height of the guide column is the same as the thickness of the sheet material to be punched.

[0016] Preferably, the concave mold includes a concave mold base plate and a concave mold plate; the outer contours of the concave mold base plate and the concave mold plate are consistent;

[0017] The lower surface of the concave plate is connected to the upper surface of the concave plate base, the upper surface of the concave plate is connected to the lower surface of the discharge plate, and the thickness of the concave plate is the same as the thickness of the sheet to be punched.

[0018] Preferably, the lower surface of the concave mold plate is connected to the upper surface of the concave mold base plate by plug welding; the upper surface of the concave mold plate is connected to the lower surface of the discharge plate by plug welding.

[0019] Preferably, it further comprises a clamping device, which is clamped between the upper surface of the male mold and the lower surface of the female mold.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The automobile sheet metal bracket stamping die provided by the utility model has the thickness of the punch, the discharge plate and the die consistent with the thickness of the sheet material, so that the B and C areas with the bending radius consistent with the thickness of the sheet material are obtained. This solves the problem that the bending machine is limited by the bending radius and bending length and cannot meet the manufacturing needs of the B and C areas. It improves the manufacturing capacity, increases the types of self-made sheet metal brackets, shortens the manufacturing cycle, and reduces the manufacturing cost.

[0022] 2. The sheet metal bracket stamping die provided by the utility model is connected by plug welding between the convex die base plate and the convex die plate, the concave die base plate and the concave die plate, and the discharge plate and the concave die plate. Such welding joints are uniform and smooth, ensuring the uniformity of the force and force transmission of the die and the quality of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the stamped sheet metal bracket;

[0025] Figure 2 This is a structural schematic diagram of the stamping die for the automobile sheet metal bracket according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic structural diagram of a punch of a stamping die for an automobile sheet metal bracket according to an embodiment of the present utility model;

[0027] Figure 4 This is a structural schematic diagram of the discharge plate of the automobile sheet metal bracket stamping die according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic structural diagram of the female die of the stamping die for the automobile sheet metal bracket according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic structural diagram of a clamping device for a stamping die for an automobile sheet metal bracket according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the application of the automobile sheet metal bracket stamping die described in an embodiment of the utility model.

[0031] Among them: 100- sheet material to be stamped;

[0032] 1-punch; 11-punch base plate; 12-punch plate; 13-guide positioning hole; 14-punch base plate positioning hole; 15-punch plate positioning hole; 16-punch plug welding hole;

[0033] 2-feeding plate; 21-groove; 22-guide column; 23-feeding plate plug welding hole

[0034] 3-die; 31-die base plate; 32-die plate; 33-die plug welding hole;

[0035] 4-Clamping device. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of this application more clear, this application will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0037] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0038] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0039] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0040] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0041] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0042] It should be noted in particular that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0043] See also Figure 1-Figure 7 , an embodiment of the present application provides a stamping die for an automobile sheet metal bracket, comprising: a punch 1; a discharge plate 2, which is arranged below the raised portion of the punch 1, and the discharge plate 2 is provided with a groove 21 running through it from top to bottom; a die 3, which is connected to the lower surface of the discharge plate 2, and the die 3 and the groove 21 enclose a discharge space for accommodating a sheet material 100 to be stamped; the outer contours of the punch 1, the discharge plate 2, and the die 3 are consistent, and the raised height of the punch 1, the thickness of the discharge plate 2, and the recessed depth of the die 3 are all the same as the thickness of the sheet material 100 to be stamped.

[0044] In this embodiment, the punch 1, the discharge plate 2 and the die 3 are arranged in sequence from top to bottom, and the discharge plate 2 and the die 3 are connected together. When connected, the positional relationship is determined by aligning the outer contours. The groove 21 opened on the discharge plate 2 and the concave shape of the die 3 both match the shape of the sheet material 100 to be punched, that is, the outline size of the groove 21 is slightly larger than the outline size of the sheet material 100 to be punched, and the concave size of the die 3 is smaller than the outline size of the sheet material 100 to be punched. The discharge plate 2 and the die 3 connected together form a discharge space for placing the sheet material 100 to be punched. After the sheet material is placed in the discharge space, the whole is in the groove 21 and the two ends overlap on the upper surface of the die 3. The groove 21 acts as a limiter for the sheet material. Since the thickness of the discharge plate 2 and the concave depth of the die 3 are the same as the thickness of the sheet material 100 to be punched, at this time, the upper surface of the sheet material is flush with the upper surface of the discharge plate 2.

[0045] Similarly, the convex shape of the punch 1 matches the shape of the sheet material 100 to be punched. The positional relationship of the punch 1 is determined by aligning the edge contour of the punch 1 with the edge contours of the discharge plate 2 and the die 3. The convex part of the punch 1 is installed downward above the discharge plate 2, and the convex part of the punch 1 contacts the upper surface of the sheet material 100 to be punched. Since the height of the convex part is the same as the thickness of the sheet material, at this time, there is a distance between the non-convex area of ​​the punch 1 and the discharge plate 2 that is the same as the thickness of the sheet material. This distance is the distance that the punch 1 moves downward.

[0046] After the mold and the sheet to be punched are installed, the punching head of the punching equipment applies downward pressure to the upper surface of the punch 1, and the extrusion punch 1 moves downward. Its convex part squeezes the sheet downward and squeezes the sheet into the recessed area of ​​the die 3 until the non-convex part of the punch 1 contacts the upper surface of the discharge plate 2. The press fitting is stopped. After press fitting, the radius of the bending part of the B and C areas is consistent with the thickness of the sheet, which solves the problem that the bending machine is limited by the bending radius and bending length and cannot meet the manufacturing needs of the B and C areas.

[0047] Preferably, the punch 1 includes a punch base plate 11 and a punch plate 12; the punch plate 12 is connected to the lower surface of the punch base plate 11, and the thickness of the punch plate 12 is the same as the thickness of the sheet material 100 to be punched. The punch plate 12 is the raised portion of the punch 1. When the mold is working, the punch plate 12 contacts the upper surface of the sheet material 100 to be punched and squeezes the sheet material. A punch base plate positioning hole 14 is provided on the punch base plate 11, and a punch plate positioning hole 15 is provided on the punch plate 12. The positions of the punch base plate positioning hole 14 and the punch plate positioning hole 15 correspond to each other. When the punch base plate 11 and the punch plate 12 are connected, they are positioned through the two positioning holes to ensure that the connected punch 1 meets the shape and size requirements.

[0048] Furthermore, the convex mold plate 12 is connected to the convex mold base plate 11 by plug welding. Plug welding is to press two or more workpieces together, melt the metal at the joint by resistance heating, and achieve welding. Since plug welding can press the workpieces tightly together for welding, the weld joint is very uniform. Compared with traditional welding methods, the weld joint of plug welding is more beautiful in shape and can effectively improve the quality of the workpiece. In this embodiment, a plurality of convex mold plug welding holes 16 are opened on the convex mold base plate 12, the convex mold plate 12 and the convex mold base plate 11 are pressed together, and welding metal is placed in the convex mold plug welding holes 16. The metal is melted by heating, and the convex mold plate 12 and the convex mold base plate 11 are welded together. The weld joint is flat and uniform, and the resulting convex mold 1 can transmit pressure evenly.

[0049] Preferably, a guide post 22 is provided on the upper surface of the discharge plate 2, and a guide positioning hole 13 is provided on the punch base plate 11 at a position corresponding to the guide post 22. During the downward movement of the punch 1, the positioning hole 13 passes through the guide post 22 to position the punch 1, preventing the punch from deflecting during the downward movement and affecting the quality of the product.

[0050] Furthermore, the height of the guide post 22 is the same as the thickness of the sheet material 100 to be punched. If the height of the guide post 22 is too high, the guide post 22 will extend beyond the upper surface of the punch base plate 11 during the punching process, potentially interfering with the punch head. This arrangement ensures that the guide post does not interfere with the punch head.

[0051] Optionally, the die 3 includes a die base plate 31 and a die plate 32; the die base plate 31 and the die plate 32 have the same outer contour; the lower surface of the die plate 32 is connected to the upper surface of the die base plate 31, and the upper surface of the die plate 32 is connected to the lower surface of the discharge plate 2, and the thickness of the die plate 32 is the same as the thickness of the sheet material 100 to be punched.

[0052] When connected, the die base plate 31 and the die plate are positioned relative to each other through their contours, ensuring that the connected die 3 meets the required shape and size. The die plate 32, die base plate 31, and discharge plate 2 form a discharge space for the sheet material 100 to be punched. Once placed in the discharge space, the sheet material overlaps the upper surface of the die plate 32. A distance equal to the sheet material's thickness exists between the die base plate 31. This gap provides the distance the sheet material travels downward during stamping.

[0053] Furthermore, in the same manner as the connection between the male mold base plate 11 and the male mold plate 12, a plurality of female mold plug welding holes 33 are provided on the female mold plate 32, and a plurality of discharge plate plug welding holes 23 are provided on the discharge plate 2. The lower surface of the female mold plate 32 and the upper surface of the female mold base plate 31, and the upper surface of the female mold plate 32 and the lower surface of the discharge plate 2 are all connected by plug welding to ensure that the welding joint is uniform and smooth.

[0054] Optionally, the stamping die of this embodiment further includes a clamping device 4, which is clamped between the upper surface of the punch 1 and the lower surface of the die 3. The clamping device 4 fixes the die at the beginning of stamping to prevent the punch 1 from shifting relative to the discharge plate 2. After stamping begins, the guide column 22 is used to position the die.

[0055] The working process of the automobile sheet metal bracket stamping die described in this embodiment is as follows: the sheet material 100 to be stamped that has been bent in area A is placed in the discharge space formed by the discharge plate 2 and the die 3, and the position relationship of the punch 1 is determined by aligning the edge contour of the punch 1 with the edge contours of the discharge plate 2 and the die 3, and the punch plate 12 is installed downward above the discharge plate 2, so that the lower surface of the punch plate 12 contacts the upper surface of the sheet material 100 to be stamped, so that the punching head of the stamping equipment applies downward pressure to the upper surface of the punch substrate 11, and the punch substrate 11 moves downward. The punch plate 12 squeezes the sheet material downward and squeezes the sheet material into the recessed area of ​​the die 3 until the lower surface of the punch substrate 11 contacts the upper surface of the discharge plate 2, and the press-fitting is stopped to obtain the completed press-fitted areas B and C, and the part is completed.

[0056] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[0057] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stamping die for an automobile sheet metal bracket, characterized in that: include: Punch (1); A discharge plate (2), the discharge plate (2) being arranged below the raised portion of the punch (1), and the discharge plate (2) being provided with a groove (21) running through the upper and lower parts; A concave die (3), the concave die (3) being connected to the lower surface of the discharge plate (2), the concave die (3) and the groove (21) enclosing a discharge space for accommodating the sheet material (100) to be punched; The outer contours of the punch (1), the discharge plate (2) and the die (3) are consistent; the protruding height of the punch (1), the thickness of the discharge plate (2) and the recessed depth of the die (3) are all the same as the thickness of the sheet material (100) to be punched.

2. The automobile sheet metal bracket stamping die according to claim 1, characterized in that: The convex mold (1) comprises a convex mold base plate (11) and a convex mold plate (12); The convex plate (12) is connected to the lower surface of the convex plate base (11), and the thickness of the convex plate (12) is the same as the thickness of the sheet material (100) to be punched.

3. The automobile sheet metal bracket stamping die according to claim 2, characterized in that: The convex mold plate (12) is connected to the convex mold base plate (11) by plug welding.

4. The automobile sheet metal bracket stamping die according to claim 2, characterized in that: A guide column (22) is provided on the upper surface of the discharge plate (2), and a guide positioning hole (13) is provided at a position corresponding to the guide column (22) on the male mold base plate (11).

5. The automobile sheet metal bracket stamping die according to claim 4, characterized in that: The height of the guide column (22) is the same as the thickness of the sheet material (100) to be punched.

6. The automobile sheet metal bracket stamping die according to claim 1, characterized in that: The concave mold (3) comprises a concave mold base plate (31) and a concave mold plate (32); the outer contours of the concave mold base plate (31) and the concave mold plate (32) are consistent; The lower surface of the concave mold plate (32) is connected to the upper surface of the concave mold base plate (31), the upper surface of the concave mold plate (32) is connected to the lower surface of the discharge plate (2), and the thickness of the concave mold plate (32) is the same as the thickness of the sheet material (100) to be punched.

7. The automobile sheet metal bracket stamping die according to claim 6, characterized in that: The lower surface of the concave mold plate (32) is connected to the upper surface of the concave mold base plate (31) by plug welding; the upper surface of the concave mold plate (32) is connected to the lower surface of the discharge plate (2) by plug welding.

8. The automobile sheet metal bracket stamping die according to claim 1, characterized in that: It also includes a clamping device (4), which is clamped between the upper surface of the male mold (1) and the lower surface of the female mold (3).

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