CN221909524U - Unloading mechanism of thinning flanging forming structure and die thereof - Google Patents

Abstract

The utility model discloses a discharge mechanism and a mold of a thinning and flanging forming structure, wherein an upper clamping plate is movably mounted on an upper die seat through a guide column and a reset spring assembly, and a concave die is fixedly embedded in the upper clamping plate; an installation cavity is provided in the upper die seat, and the embedded block is movably embedded in the installation cavity, and the embedded block is fixedly connected to the upper clamping plate through a connecting bolt; a discharge ejector rod and a discharge spring are installed in the embedded block, and the discharge ejector rod passes through the upper clamping plate and extends into the concave die. During discharge, the upper die seat moves upward and resets, and as the upper die seat moves upward, the upper clamping plate is separated from the upper die seat. During this process, the embedded block moves synchronously with the upper clamping plate, that is, the discharge ejector rod and the discharge spring installed in the embedded block also move synchronously with the upper clamping plate. At the same time, the discharge ejector rod will also move downward under the action of the discharge spring to push the workpiece out of the concave die to complete discharge. This discharge process greatly reduces the discharge stroke of the discharge ejector rod, so a discharge spring with greater elasticity can be selected.

Description

A discharge mechanism and mold for a thinning and flanging forming structure

Technical Field

The utility model belongs to the technical field of stamping dies, and in particular relates to a discharge mechanism of a thinning and flanging forming structure and a die thereof.

Background Art

Thinning and flanging forming is a common stamping processing method, see Figures 1 and 2, the basic processing principle is: a through hole is set at the center of the workpiece 0 to be processed, and during the stamping process, the punch 1 and the die 2 are used to punch the through hole position at the center of the workpiece 0, so that a thinned flanging is formed at the through hole of the workpiece 0.

Since the thinning and flanging forming is intense, the flanging part of the workpiece will be tightly bulged and held in the die after forming, so it is necessary to set a discharge push rod for unloading. See Figures 3 and 4, which are stamping die structures that can complete thinning and flanging forming and unloading in the prior art, including: a lower die base 11, a lower clamping plate 12, a punch 13, an upper die base 14, an upper clamping plate 15, a die 16, a discharge push rod 17 and a discharge spring 18. The lower clamping plate 12 is movably mounted on the lower die base 11 through a guide column and a reset spring assembly 191. The lower clamping plate 12 can move up and down, and the punch 13 is fixedly mounted in the lower die base 11; the upper clamping plate 15 is movably mounted on the upper die base 14 through a guide column and a reset spring assembly 192. The upper clamping plate 15 can move up and down, and the die 16 is fixedly embedded. In the upper clamping plate 15, the unloading ejector rod 17 is movably embedded in the upper die base 14, and the unloading spring 18 is installed at the top of the unloading ejector rod 17 to provide downward elastic force for the unloading ejector rod 17; during operation, as the upper die base 14 moves downward, the workpiece 0 is clamped between the lower clamping plate 12 and the upper clamping plate 15, and then the punch 13 punches into the die 16 to complete the thinning and flanging of the workpiece; then the upper die base 14 moves upward and resets, and as the upper die base 14 moves upward, the upper clamping plate 15 separates from the upper die base 14, and at the same time, the unloading ejector rod 17 moves downward under the action of the unloading spring 18 to push the workpiece out of the die 16 to complete the unloading.

The above-mentioned unloading method has the following disadvantages: since the unloading push rod is mounted in the clamping plate, the unloading stroke of the unloading push rod is the stroke of the unloading push rod itself + the stroke of the lower clamping plate, which results in a too long unloading stroke and a large loss of elastic force of the unloading spring. When unloading force is required, the unloading is not smooth due to the long stroke, and the material is often stuck, causing the material belt to fluctuate up and down, affecting the feeding efficiency, unstable positioning, and unstable height of the flanging hole.

Utility Model Content

The utility model mainly aims to overcome the deficiencies of the prior art and provides a discharge mechanism of a thinning and flanging forming structure and a die thereof.

The utility model is realized by the following technical solutions:

A discharge mechanism of a thinning and flanging forming structure, wherein an upper clamping plate is movably mounted on an upper die base through a guide column and a reset spring assembly, and a die is fixedly embedded in the upper clamping plate; an installation cavity is provided in the upper die base, an embedded block is movably embedded in the installation cavity, and the embedded block is fixedly connected to the upper clamping plate through connecting bolts; a discharge ejector rod and a discharge spring are installed in the embedded block, and the discharge ejector rod passes through the upper clamping plate and extends into the die.

A mold with the above-mentioned unloading mechanism comprises a lower die base, a lower clamping plate, a punch, an upper die base, an upper clamping plate, a die, a unloading ejector rod, a unloading spring, an embedded block and connecting bolts, wherein the lower clamping plate is movably mounted on the lower die base through a guide column and a reset spring assembly, and the punch is fixedly mounted in the lower die base; the upper clamping plate is movably mounted on the upper die base through a guide column and a reset spring assembly, the die is fixedly embedded in the upper clamping plate, an installation cavity is provided in the upper die base, the embedded block is movably embedded in the installation cavity, and the embedded block is fixedly connected to the upper clamping plate through connecting bolts, the unloading ejector rod and the unloading spring are installed in the embedded block, the unloading spring is located at the top end of the unloading ejector rod, provides downward elastic force for the unloading ejector rod, and the unloading ejector rod passes through the upper clamping plate and extends into the die.

The advantages and beneficial effects of the utility model are:

The utility model greatly reduces the unloading stroke of the unloading push rod during unloading. Since the unloading stroke becomes smaller, a unloading spring with greater elasticity can be selected, thus perfectly solving the defects of the background technology.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of thinning and flanging forming in the background art.

FIG. 2 is a schematic diagram of the thinning and flanging forming process in the background art.

FIG. 3 is a structural diagram of a stamping die capable of completing thinning and flanging forming and unloading in the prior art (stamping state).

FIG. 4 is a structural diagram of a stamping die capable of completing thinning and flanging forming and unloading in the prior art (unloading state).

FIG. 5 is a structural diagram of a stamping die capable of completing thinning and flanging forming and unloading of the utility model (stamping state).

FIG. 6 is a structural diagram of a stamping die capable of completing thinning and flanging forming and unloading of the utility model (unloading state).

For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

A stamping die capable of completing thinning and flanging forming and unloading, referring to Figures 5 and 6, comprises a lower die base 21, a lower clamping plate 22, a punch 23, an upper die base 24, an upper clamping plate 25, a die 26, a discharge ejector rod 27, a discharge spring 28, an embedded block 29 and a connecting bolt 30, wherein the lower clamping plate 22 is movably mounted on the lower die base 21 through a guide column and a return spring assembly 31, the lower clamping plate 22 can move up and down, and the punch 23 is fixedly mounted in the lower die base 21; the upper clamping plate 25 is movably mounted on the upper die base 24 through a guide column and a return spring assembly 32, the upper clamping plate 25 can move up and down, the die 26 is fixedly embedded in the upper clamping plate 25, an installation cavity is provided in the upper die base 24, the embedded block 29 is movably embedded in the installation cavity, and the embedded block 29 is fixedly connected to the upper clamping plate 25 through a connecting bolt 30, so that the embedded block 29 can synchronously move up and down with the upper clamping plate 25.

A vertical mounting cavity is provided inside the embedded block 29 , in which the unloading push rod 27 and the unloading spring 28 are installed. The unloading spring 28 is located at the top end of the unloading push rod 27 to provide downward elastic force for the unloading push rod 27 , and the unloading push rod 27 passes through the upper clamping plate 25 and extends into the concave mold 26 .

During operation, as the upper die base 24 moves downward (the process of mold closing), the workpiece 0 is clamped between the lower clamping plate 22 and the upper clamping plate 25, and the punch 23 punches into the solid die 26 to complete the thinning and flanging of the workpiece; then the upper die base 24 moves upward and resets (the process of mold opening). As the upper die base 24 moves upward, the upper clamping plate 25 separates from the upper die base 24. During this process, the embedded block 29 moves synchronously with the upper clamping plate 25, that is, the unloading ejector rod 27 and the unloading spring 28 installed in the embedded block 29 also move synchronously with the upper clamping plate 25. At the same time, the unloading ejector rod 27 will also move downward under the action of the unloading spring 28 to push the workpiece out of the die 26 to complete the unloading.

In summary, the utility model greatly reduces the unloading stroke during unloading. Since the stroke is reduced, a unloading spring with greater elasticity can be selected, which perfectly solves the defects of the background technology.

For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.

Claims (2)

1. A discharge mechanism of a thinning and flanging forming structure, characterized in that: an upper clamping plate is movably mounted on an upper die seat through a guide column and a reset spring assembly, and a die is fixedly embedded in the upper clamping plate; a mounting cavity is provided in the upper die seat, an embedded block is movably embedded in the mounting cavity, and the embedded block is fixedly connected to the upper clamping plate through a connecting bolt; a discharge ejector rod and a discharge spring are installed in the embedded block, and the discharge ejector rod passes through the upper clamping plate and extends into the die. 2. A mold with a unloading mechanism as described in claim 1, characterized in that it comprises a lower mold base, a lower clamping plate, a punch, an upper mold base, an upper clamping plate, a female mold, a unloading push rod, a unloading spring, an embedded block and a connecting bolt, wherein the lower clamping plate is movably mounted on the lower mold base through a guide column and a return spring assembly, and the punch is fixedly mounted on the lower mold base; the upper clamping plate is movably mounted on the upper mold base through a guide column and a return spring assembly, and the female mold is fixedly embedded in the upper clamping plate, a mounting cavity is provided in the upper mold base, the embedded block is movably embedded in the mounting cavity, and the embedded block is fixedly connected to the upper clamping plate by connecting bolts, the unloading push rod and the unloading spring are installed in the embedded block, the unloading spring is located at the top end of the unloading push rod, provides downward elastic force for the unloading push rod, and the unloading push rod passes through the upper clamping plate and extends into the female mold.