A new type of on-vehicle battery upper cover stamping equipment die

Abstract

This utility model discloses a novel stamping mold for a vehicle battery cover, relating to the field of mold technology. The utility model includes a lower mold base, an upper mold base distributed above the lower mold base, and a feeding pulley distributed at the front end of the top of the lower mold base; it also includes: a concave mold fixed at the center of the top of the lower mold base, a convex mold distributed on top of the concave mold, a pressure ring provided around the bottom of the convex mold, an arc-shaped drawing rib distributed at one end of the convex mold, a limit block distributed on one side of the concave mold, and a guide plate distributed at the front end of the concave mold. This utility model adds a second arc-shaped drawing rib, adding double ribs to the outer process surface corresponding to the wrinkled area, thus eliminating the need for additional material edges, facilitating precise adjustment of the material feed in the wrinkled area, and minimizing the impact of temperature changes, resulting in stable product condition.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a new type of mold for stamping equipment for vehicle battery top cover. Background Technology

[0002] With the development of the automotive industry, the surface quality requirements for sheet metal parts are getting higher and higher. When producing and processing new types of vehicle battery covers, stamping equipment and molds are used for stamping and forming of vehicle battery covers.

[0003] Existing automotive battery cover stamping equipment molds increase feeding resistance by increasing the material edge and the lapping ratio of the pressing surface. However, increasing the material edge directly increases the raw material cost of the product, resulting in cost waste. At the same time, the lapping ratio of the pressing surface is labor-intensive and difficult to adjust. After the mold has produced a certain number of products, the material feeding becomes inconsistent with temperature changes, and the product condition cannot be guaranteed to be stable. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a novel stamping mold for vehicle battery cover, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a new type of stamping equipment mold for vehicle battery cover, including a lower mold base, an upper mold base distributed above the lower mold base, and a feeding pulley distributed at the front end of the top of the lower mold base; It also includes: a die cavity is fixed at the top center of the lower die base, and a punch is distributed on the upper part of the die cavity. A pressure ring is provided on the bottom periphery of the punch. An arc-shaped drawing rib is distributed at one end of the punch. A limit block is distributed on one side of the die cavity. A guide plate is distributed at the front end of the die cavity.

[0006] Furthermore, the feed pulleys are equidistantly distributed at the top front end of the lower mold base, and each feed pulley has a shaft penetrating its inner side, forming a rotatable connection through the shaft.

[0007] Furthermore, the size of the protrusion at the top of the die is adapted to the size of the recess at the bottom of the punch, and the punch is connected to the bottom of the upper die holder by bolts.

[0008] Furthermore, the pressure rings are distributed along the bottom periphery of the punch, and the pressure rings and the punch form an integrated structure.

[0009] Furthermore, the limiting blocks are equidistantly distributed along the center point of the lower mold base, and the limiting blocks and the lower mold base are connected by bolts to form a detachable connection.

[0010] Furthermore, the guide plates are symmetrically distributed along the vertical center line of the lower mold base, and the guide plates are distributed on the outer periphery of the top end of the lower mold base.

[0011] This utility model has the following beneficial effects: This invention adds a second arc-shaped drawing bead to the outer process surface corresponding to the wrinkled area, thus eliminating the need to add material edges. This facilitates precise adjustment of the material feed in the wrinkled area, and the temperature change has little impact on it, resulting in stable product condition. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a bottom view of the present invention; Figure 4 This is a side view of the punch of this utility model; Figure 5 This is a schematic cross-sectional view of the lower mold base of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Lower die holder; 2. Upper die holder; 3. Feed pulley; 4. Die; 5. Punch; 6. Blank holder; 7. Curved draw bead; 8. Limiting block; 9. Guide plate. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-5 As shown, this utility model is a new type of stamping equipment mold for vehicle battery cover, including a lower mold base 1, an upper mold base 2 distributed above the lower mold base 1, and a feeding pulley 3 distributed at the front end of the top of the lower mold base 1. It also includes: a die 4 is fixedly provided at the top center of the lower die base 1, and a punch 5 is distributed on the upper part of the die 4. A pressure ring 6 is provided on the bottom periphery of the punch 5. An arc-shaped drawing rib 7 is distributed at one end of the punch 5. A limit block 8 is distributed on one side of the die 4. A guide plate 9 is distributed at the front end of the die 4. During operation, the flat metal blank to be processed is placed on the upper surface of the die 4 by the rotation of the feed pulley 3. The upper die holder 2 then moves longitudinally under the action of the press, which in turn drives the punch 5, which is fixedly connected to its bottom, to move longitudinally as well. The punch 5 then contacts the die 4, initially pressing the blank holder 6 to prevent slippage. As the punch 5 moves downward under the press, it contacts the blank and applies vertical pressure, forcing the material to flow into the cavity of the die 4. The material undergoes plastic deformation in the gap between the punch 5 and the die 4, gradually conforming to the die surface. During deformation, the material is subjected to both tensile and compressive stresses. The blank holder 6 adjusts the blank holder force to balance the material flow and prevent tangential compression of the blank edges. Stress causes wrinkling. The speed at which the material flows into the die 4 is controlled to prevent breakage or excessive thinning. When the punch 5 reaches the bottom dead center, the material completely fits the mold cavity, forming the shape of the battery cover. At the same time, when the material is placed into the outermost arc-shaped drawing bead 7, during the pressing process of the punch 5 and the pressure ring 6, the two arc-shaped drawing beads 7 work together in the initial stage to minimize the amount of material flowing in and ensure that there is no wrinkling or stacking inside. After continuing to press down, the material enters the outermost arc-shaped drawing bead 7. At this time, the product's draft area surface change position has been formed. Under the action of the inner arc-shaped drawing bead 7, the amount of material flowing in increases relatively, completing the final material forming. The position of the outer arc-shaped drawing bead 7 should be set just after the material enters the outer arc-shaped drawing bead 7, and the product's draft area surface change position is formed.

[0017] Furthermore, the feed pulleys 3 are equidistantly distributed at the top front end of the lower mold base 1, and each feed pulley 3 has a shaft penetrating its inner side, forming a rotatable connection through the shaft; During operation, since the feed pulley 3 is rotatably connected to the equipment, the rotation of the feed pulley 3 can facilitate subsequent auxiliary feeding.

[0018] Furthermore, the size of the protrusion at the top of the die 4 is matched with the size of the recess at the bottom of the punch 5, and the punch 5 is connected to the bottom of the upper die base 2 by bolts; During operation, the concave die 4 and the convex die 5 come into contact, which facilitates the subsequent forming of the flat metal blank to be processed.

[0019] Furthermore, the pressure ring 6 is distributed along the bottom periphery of the punch 5, and the pressure ring 6 and the punch 5 form an integrated structure; During operation, when the die 4 and the punch 5 come into contact, the pressure ring 6 is initially pressed by the punch 5, which can prevent slippage.

[0020] Furthermore, the limiting blocks 8 are equidistantly distributed along the center point of the lower mold base 1, and the limiting blocks 8 and the lower mold base 1 are connected by bolts to form a detachable connection. During operation, since there are multiple limit blocks 8 evenly distributed on the lower mold base 1, the multiple limit blocks 8 can effectively limit the flat metal blank input to the lower mold base 1.

[0021] Furthermore, the guide plates 9 are symmetrically distributed along the vertical center line of the lower mold base 1, and the guide plates 9 are distributed on the outer periphery of the top end of the lower mold base 1; During operation, the flat metal blank moves downward to the die holder 1 under the action of the feed pulley 3. When the flat metal blank moves, the guide plate 9 is used to guide the flat metal blank and prevent the flat metal blank from shifting in position when it is conveyed to the die holder 1.

[0022] Working principle: The flat metal blank to be processed is placed on the upper surface of the die 4 by the rotation of the feed pulley 3. Then, the upper die holder 2 moves longitudinally under the action of the press, and the longitudinal movement of the upper die holder 2 drives the punch 5 fixedly connected to its bottom to move longitudinally as well. Then, the punch 5 moves longitudinally to contact the die 4 and initially presses the blank holder 6 to prevent slippage. When the punch 5 moves downward under the drive of the press, it contacts the blank and applies vertical pressure, forcing the material to flow into the cavity of the die 4. The material undergoes plastic deformation in the gap between the punch 5 and the die 4, gradually conforming to the mold surface. During the deformation process, the material is subjected to the combined action of tensile stress and compressive stress. The blank holder 6 adjusts the blank holder force to balance the material flow, prevent wrinkling of the blank edge due to tangential compressive stress, control the speed of material flowing into the die 4, and avoid breakage or excessive thinning. When the punch 5 reaches the bottom dead center, the material completely conforms to the mold cavity, forming the shape of the battery cover.

[0023] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A novel stamping mold for vehicle battery cover, comprising a lower mold base (1), an upper mold base (2) distributed above the lower mold base (1), and a feeding pulley (3) distributed at the front end of the top of the lower mold base (1). Its features are, Also includes: A die (4) is fixed at the top center of the lower die base (1), and a punch (5) is distributed on the upper part of the die (4). A pressure ring (6) is provided on the bottom periphery of the punch (5). An arc-shaped drawing rib (7) is distributed at one end of the punch (5). A limit block (8) is distributed on one side of the die (4). A guide plate (9) is distributed at the front end of the die (4).

2. The novel vehicle battery cover stamping die according to claim 1, characterized in that, The feed pulleys (3) are evenly distributed at the top front end of the lower mold base (1), and each feed pulley (3) has a shaft running through its inner side. The feed pulleys (3) are rotatably connected through the shaft.

3. The novel vehicle battery cover stamping die according to claim 1, characterized in that, The size of the protrusion at the top of the die (4) is matched with the size of the recess at the bottom of the punch (5), and the punch (5) is connected to the bottom of the upper die base (2) by bolts.

4. The novel vehicle battery cover stamping die according to claim 1, characterized in that, The pressure ring (6) is distributed along the bottom periphery of the punch (5), and the pressure ring (6) and the punch (5) form an integrated structure.

5. The novel vehicle battery cover stamping die according to claim 1, characterized in that, The limiting blocks (8) are equidistantly distributed along the center point of the lower mold base (1), and the limiting blocks (8) and the lower mold base (1) are connected by bolts to form a detachable connection.

6. The novel vehicle battery cover stamping die according to claim 1, characterized in that, The guide plate (9) is symmetrically distributed along the vertical center line of the lower mold base (1), and the guide plate (9) is distributed on the outer periphery of the top of the lower mold base (1).

Images