A double-sided multi-hole punching die for connecting aluminum angle nuts in the front engine compartment of an automobile.

Abstract

A double-sided multi-hole stamping die for automotive front engine compartment connecting nut angle aluminum is disclosed. The upper die has several punches on one side of its lower end face, matching the machining holes on one side of the angle aluminum; several punches on the other side of its lower end face, matching the machining holes on the other side of the angle aluminum; and corresponding dies on both sides of the upper end face of the lower die. This invention is specifically designed for the double-sided stamping of angle aluminum for automotive side beam connecting nuts with special cross-sectional shapes. It can simultaneously stamp two different sides of two angle aluminum pieces, achieving high processing efficiency. Furthermore, it incorporates a targeted positioning design based on the special cross-section of the angle aluminum, enabling rapid and accurate positioning.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically a double-sided multi-hole stamping die for an aluminum angle nut connecting nut in the front engine compartment of an automobile. Background Technology

[0002] The angle aluminum connecting nuts for the front engine compartment of an automobile are installed on the side beam of the front engine compartment. Several sleeve nuts are riveted onto the angle aluminum workpiece. During assembly, other components are installed onto the front engine compartment side beam via bolts at the sleeves. Through holes for installing the sleeve nuts are pre-machined on the angle aluminum. Stamping is a commonly used processing method. Stamping uses upper and lower dies to press together, utilizing the shearing action of the upper die head and the lower die cavity to machine several through holes on the angle aluminum.

[0003] The bending angle of the angle aluminum workpiece needs to be specially designed according to the positional relationship between the side beam and other components. For example, the angle is no longer the standard 90° angle, the end of the angle aluminum edge has a hook-shaped connection, the angle aluminum edge is not a regular planar structure, and a groove structure is set, etc. Such variations and special structures require corresponding modifications to the stamping die tooling. How to achieve efficient and accurate positioning of the angle aluminum of the above-mentioned automotive side beam connecting nut, and how to avoid deformation of the angle aluminum under pressure during the stamping process, are technical problems that need to be considered and solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this utility model is to provide a double-sided multi-hole punching die for connecting nut angle aluminum in the front engine compartment of an automobile. It is specially designed for double-sided stamping processing of connecting nut angle aluminum with special cross-sectional shape for automobiles. It can simultaneously stamp two different sides of two angle aluminum at one time, with high processing efficiency. In addition, it is designed with a specific positioning feature for the special cross-section of the angle aluminum, so that the angle aluminum can be positioned quickly and accurately.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A double-sided multi-hole punching die for connecting nuts in the front engine compartment of an automobile has several punches on one side of the lower end face of the upper die, which match the machining holes on one side of the angle aluminum; several punches on the other side of the lower end face of the upper die, which match the machining holes on the other side of the angle aluminum; and corresponding dies on both sides of the upper end face of the lower die.

[0007] The two corners of the tooling correspond to the two sides of the angle aluminum for punching, so that two angle aluminum pieces can be placed on both sides at the same time for punching, which speeds up the punching efficiency.

[0008] The upper die has guide posts at both ends of its lower end face, and the lower die has matching guide holes at both ends of its upper end face. The guiding mechanism makes the punch and die more precise when pressing, and the stamping position remains consistent.

[0009] Side-mounted cylinders are installed on both sides of the lower mold. The side-mounted cylinders press the non-machined edges of the angle aluminum, making the angle aluminum fit tightly against the lower mold and preventing misalignment; a flexible pad is also provided at the cylinder head, which can effectively protect the surface of the angle aluminum from being scratched by the cylinder head.

[0010] Several side positioning blocks are respectively provided on both sides of the upper end face of the lower mold, and an end positioning block is provided at each end of the lower mold; corresponding grooves are provided on the lower end face of the upper mold. The side positioning blocks abut against the side edges of the angle aluminum, and the end positioning blocks abut against the end edges of the angle aluminum, thereby completing the planar positioning of the angle aluminum.

[0011] The upper end face and side face of the lower mold are respectively provided with through grooves, the width and depth of which match the flange of the angle aluminum edge. Since the angle aluminum has an asymmetrical regular cross section, one side has a flange. In order to make the flanged side fit against the surface of the lower mold, through grooves are provided to hide the flange in the through grooves.

[0012] The inclination angles of the two sides of the lower mold match the included angle of the two sides of the angle aluminum. Since the included angle of the two sides of the angle aluminum is not 90°, in order to make the surface of the lower mold fit the angle aluminum, the inclination angles of the two side walls of the lower mold are similar to the included angle of the angle aluminum.

[0013] The die cavity is connected to a blanking channel. A scrap box is connected below the blanking channel, and the stamped aluminum discs are unloaded through the blanking channel.

[0014] Advantages of this utility model:

[0015] (1) This utility model is specifically used for double-sided stamping of the angle aluminum of the front engine compartment connecting nut. It can simultaneously stamp two different sides of the angle aluminum, which has high processing efficiency. Operators only need simple training to start working.

[0016] (2) The present invention provides accurate positioning of the angle aluminum, the surface of the angle aluminum is in contact with the surface of the lower mold, and it is secured by a side pressure cylinder. No misalignment will occur during the stamping process, and the stamping is precise.

[0017] (3) The angle aluminum of this utility model can maintain its original included angle during the fixed pressure process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the elevation structure of the stamping die of this utility model; (excluding the upper die and angle aluminum).

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model; (including the upper mold and angle aluminum).

[0020] The component names in the figure are: 1-Upper mold; 11-Punch; 12-Guide post; 13-Groove; 2-Lower mold; 21-Die; 22-Guide hole; 23-Side positioning block; 24-End positioning block; 25-Through groove; 26-Unloading channel; 3-Side top cylinder. Detailed Implementation

[0021] Example 1

[0022] A double-sided multi-hole punching die for connecting nuts in the front engine compartment of an automobile has four punches 11 on one side of the lower end face of the upper die 1, which match the machining holes on one side of the angle aluminum; two punches 11 on the other side of the lower end face of the upper die 1, which match the machining holes on the other side of the angle aluminum; and corresponding dies 21 on both sides of the upper end face of the lower die 2.

[0023] The upper mold 1 has guide posts 12 at both ends of its lower end face, and the lower mold 2 has matching guide holes 22 at both ends of its upper end face.

[0024] The lower mold 2 is provided with side-top double-shaft cylinders 3 on both sides.

[0025] Several side positioning blocks 23 are respectively provided on both sides of the upper end face of the lower mold 2, and an end positioning block 24 is respectively provided at both ends; a corresponding groove 13 is provided on the lower end face of the upper mold 1.

[0026] The upper end face and side face of the lower mold 2 are respectively provided with through grooves 25, and the width and depth of the through grooves match the flange of the angle aluminum edge.

[0027] The tilt angles of the two sides of the lower mold 2 match the included angle of the two sides of the angle aluminum; the included angle of the two sides of the angle aluminum is 91°.

[0028] The die 21 is connected to the blanking channel 26 below.

Claims

1. A double-sided multi-hole punching die for connecting aluminum angle nuts in the front engine compartment of an automobile, characterized in that: Several punches (11) are provided on one side of the lower end face of the upper mold (1) to match the machining hole on one side of the angle aluminum; several punches (11) are provided on the other side of the lower end face of the upper mold (1) to match the machining hole on the other side of the angle aluminum; corresponding dies (21) are provided on both sides of the upper end face of the lower mold (2).

2. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the automotive front engine compartment according to claim 1, characterized in that: The upper mold (1) has guide posts (12) at both ends of its lower end face, and the lower mold (2) has matching guide holes (22) at both ends of its upper end face.

3. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the automotive front engine compartment according to claim 1, characterized in that: Side top cylinders (3) are respectively provided on both sides of the lower mold (2).

4. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the automotive front engine compartment according to claim 1, characterized in that: The lower mold (2) has several side positioning blocks (23) on both sides of its upper end face and an end positioning block (24) on each side end; the upper mold (1) has corresponding grooves (13) on its lower end face.

5. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the front engine compartment of an automobile, as described in claim 1, is characterized in that: The lower mold (2) has through slots (25) on its upper end face and side face respectively, and the width and depth of the through slots match the flange of the angle aluminum edge.

6. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the front engine compartment of an automobile, as described in claim 1, is characterized in that: The tilt angles of the two sides of the lower mold (2) match the included angles of the two sides of the angle aluminum.

7. The double-sided multi-hole punching die for the aluminum angle nut connecting nut in the front engine compartment of an automobile as described in claim 1, characterized in that: The die (21) is connected to the blanking channel (26) below.

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