Sheet metal fitting press die

Abstract

The utility model belongs to sheet metal accessory processing technical field especially is a kind of stamping die for sheet metal accessory, including upper die and lower die, upper die and lower die are mutually matched arrangement, the jacking rod of lower die is fixedly connected on connecting rod, and the limiting lug on the connecting rod both ends plug rod is in abutment in limiting slot, jacking rod passes through the inside cavity of lower die extending to the fixed connection of material return plate in the installation cylinder, and supporting spring is sleeved on the jacking rod between material return plate and installation cylinder, and the abutting plug strip is set in the part of upper die corresponding limiting slot portion place.The utility model installs the component for material return in lower die, after the stamping of sheet metal accessory is completed by the cooperation of upper die and lower die, when two are separated, material return plate will complete the sheet metal accessory of stamping from the forming cavity of lower die with smooth push, quickly complete material return operation, overall structure is simple, convenient to use, and promote the stamping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal parts processing technology, specifically a stamping die for sheet metal parts. Background Technology

[0002] In modern manufacturing, sheet metal parts are widely used in numerous fields such as automobile manufacturing, electronic equipment production, and aerospace due to their excellent plasticity, high strength, and cost-effectiveness. Stamping, as the core method of sheet metal processing, can efficiently and accurately transform metal sheets into parts of specific shapes, playing an irreplaceable role in mass production. Stamping dies for sheet metal parts are the key equipment enabling the stamping process; their performance directly determines the quality, production efficiency, and production cost of the sheet metal parts.

[0003] Stamping technology, as a manufacturing technique with a long history, occupies an important position in modern manufacturing. Ancient my country was among the world's leaders in stamping technology, greatly contributing to the progress of early civilizations. In modern times, stamping technology using dies and machinery has a history of nearly two hundred years. With industrial development, stamping dies have become essential basic process equipment in manufacturing. The high complexity, high precision, high productivity, high consistency, and low material and energy consumption characteristics of the parts they produce make dies increasingly important in manufacturing.

[0004] Currently, sheet metal stamping dies are widely used in industries such as automotive, electronics, home appliances, and aerospace, offering significant advantages in the mass production of metal parts of specific shapes. In the automotive industry, sheet metal parts such as body frames, doors, and hoods are processed through stamping, bending, forming, and welding, playing a supporting, protective, and aesthetic role in the overall vehicle structure. In electronic equipment manufacturing, sheet metal components such as the casings and internal supports of various electronic products also rely on stamping dies for production.

[0005] However, in practical applications, after the existing sheet metal stamping dies are stamped, the sheet metal parts are easily adsorbed or stuck in the die cavity, requiring workers to manually remove them. This not only reduces work efficiency but may also increase the scrap rate of sheet metal parts, making them inconvenient to use. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a stamping die for sheet metal parts, which solves the problem that after stamping, sheet metal parts are easily adsorbed or stuck in the die cavity, requiring workers to manually remove them. This not only reduces work efficiency but may also increase the scrap rate of sheet metal parts, making them inconvenient to use.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0010] A stamping die for sheet metal parts includes an upper die and a lower die, which are configured to cooperate with each other. The lifting rod of the lower die is fixedly connected to a connecting rod. Limiting protrusions on the two ends of the connecting rod abut against the limiting slots. The lifting rod passes through the mounting cylinder and extends into the internal cavity of the lower die, where it is fixedly connected to the ejector plate. A support spring is fitted on the lifting rod between the ejector plate and the mounting cylinder. An abutting strip is provided on the upper die at the corresponding limiting slot position.

[0011] Furthermore, the bottom of the cavity of the lower mold is provided with an installation port for installing the lifting rod and the ejector plate. A limiting protrusion is provided on the inner wall of the installation port. The ejector plate abuts against the limiting protrusion, and the mounting cylinder is fixedly embedded in the installation port. The bottom of the mounting cylinder is provided with a through-hole for slidingly inserting the lifting rod.

[0012] Furthermore, the upper end of the support spring abuts against the ejector plate, and the lower end abuts against the bottom inner wall of the mounting cylinder.

[0013] Furthermore, a connecting seat is provided at the middle part of the connecting rod, the lower end of the lifting rod is fixedly connected to the connecting seat, and the inserts at both ends of the connecting rod are engaged with the limiting slots at the corresponding positions. The limiting slots are provided with limiting bosses that engage with limiting protrusions, and the limiting protrusions abut against the limiting bosses.

[0014] The upper end of the insertion rod is provided with an inclined abutment surface, and an insertion interface for inserting the abutment strip is formed between the abutment surface and the limiting slot.

[0015] Furthermore, a matching inclined surface is provided at the part of the upper mold where the abutting strip contacts the upper end of the insert rod.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a stamping die for sheet metal parts, which has the following beneficial effects:

[0018] This invention features a material ejection component installed in the lower die. After the upper and lower dies work together to stamp the sheet metal parts, when they separate, the ejection plate smoothly pushes the stamped sheet metal parts out of the forming cavity of the lower die, quickly completing the material ejection operation. The overall structure is simple, easy to use, and improves stamping efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial sectional view of the lower mold in this utility model;

[0021] Figure 3 This is an exploded view of the lower mold in this utility model.

[0022] In the diagram: 1. Upper mold; 101. Abutting insert; 2. Lower mold; 201. Lifting rod; 202. Connecting rod; 203. Insert rod; 204. Limiting protrusion; 205. Limiting slot; 206. Unloading plate; 207. Placement cylinder; 208. Support spring; 209. Limiting protrusion ring; 210. Connecting seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, one embodiment of this utility model proposes a stamping die for sheet metal parts, including an upper die 1 and a lower die 2. The upper die 1 and the lower die 2 are configured to cooperate with each other. The lifting rod 201 of the lower die 2 is fixedly connected to the connecting rod 202. The limiting protrusions 204 on the insert rods 203 at both ends of the connecting rod 202 abut against the limiting slots 205. The lifting rod 201 passes through the mounting cylinder 207 and extends into the internal cavity of the lower die 2, where it is fixedly connected to the ejector plate 206. A support spring 208 is fitted on the lifting rod 201 between the ejector plate 206 and the mounting cylinder 207. An abutting strip 101 is provided on the upper die 1 at the location corresponding to the limiting slot 205.

[0026] In use, the sheet metal parts to be stamped are placed in the stamping cavity of the lower mold 2. Then, the drive mechanism drives the upper mold 1 to move and cooperate with the lower mold 2. During the cooperation process, the stamping of the sheet metal parts is completed. During the cooperation process, as the upper mold 1 moves, the insert 101 will be inserted into the insertion hole formed between the insert 203 and the limiting slot 205. During the continuous insertion process, the upper end of the insert 203 is pushed and pushed. The insert 203 will move together with the limiting protrusion 204. The limiting protrusion 204 separates from the limiting protrusion in the limiting slot 205 and removes the limiting fixation of the insert 203. At this time, under the pressure of the upper mold 1, the ejector plate 206 abuts against the support spring 208.

[0027] Next, the upper mold 1 separates from the lower mold 2, the ejector plate 206 loses the downward pressure of the upper mold 1, and at the same time the limiting and fixing effect between the insert rod 203 and the limiting slot 205 is removed. The support spring 208 pushes the ejector plate 206 to move upward, pushing out the stamped sheet metal parts in the inner cavity of the lower mold 2, thus completing the ejection operation.

[0028] Finally, push the connecting rod 202, which moves the ejector plate 206 into the mounting opening along with the lifting rod 201, and abuts against the limiting protrusion ring 209, compressing the support spring 208. At the same time, the connecting rod 202 moves the insertion rod 203 together, and the limiting protrusion 204 on the insertion rod 203 abuts against the limiting protrusion in the limiting slot 205, limiting and fixing the insertion rod 203 in the limiting slot 205. Then, through the cooperation of the connecting rod 202 and the lifting rod 201, the ejector plate 206 is fixed for reuse.

[0029] It should be further explained that the upper mold 1 is mounted on the drive mechanism, which drives the upper mold 1 to move up and down, so that it can cooperate with the lower mold 2 to smoothly stamp the sheet metal parts. The lower mold 2 is mounted on the frame of the equipment to ensure the stable use of the lower mold 2. At the same time, in the initial state, the ejector plate 206 is fitted into the mounting opening at the bottom of the lower mold 2, and the inserts 203 at both ends of the connecting rod 202 are inserted into the limit slots 205. At this time, the support spring 208 is in a compressed state.

[0030] like Figure 2 and Figure 3 As shown, in some embodiments, the bottom of the cavity of the lower mold 2 is provided with an installation port for mounting the lifting rod 201 and the ejector plate 206. A limiting protrusion ring 209 is provided on the inner wall of the installation port. The ejector plate 206 abuts against the limiting protrusion ring 209, which facilitates the stable installation of the ejector plate 206 at the bottom of the cavity of the lower mold 2. At the same time, the limiting protrusion ring 209 is used to limit and fix the ejector plate 206, thereby ensuring that the ejector plate 206 is stably installed on the lower mold 2, so that they can cooperate stably for use. The mounting cylinder 207 is fixedly embedded in the installation port, which facilitates the stable installation of the mounting cylinder 207 on the lower mold 2, thereby facilitating the stable installation of the support spring 208 to provide stable support for the ejector plate 206. The bottom of the mounting cylinder 207 is provided with a through-hole for sliding the lifting rod 201, which facilitates the smooth sliding of the lifting rod 201 on the mounting cylinder 207.

[0031] The upper end of the support spring 208 abuts against the ejector plate 206 and the lower end abuts against the bottom inner wall of the mounting cylinder 207, so that the support spring 208 can provide stable and effective support for the ejector plate 206.

[0032] A connecting seat 210 is provided at the middle part of the connecting rod 202. The lower end of the lifting rod 201 is fixedly connected to the connecting seat 210, which facilitates the stable connection of the connecting rod 202 and the lifting rod 201 together, thereby ensuring their stable cooperation. The insert rods 203 at both ends of the connecting rod 202 are both configured to cooperate with the corresponding limiting slots 205. The limiting slots 205 are provided with limiting bosses that cooperate with limiting protrusions 204. The limiting protrusions 204 abut against the limiting bosses, so that when the insert rods 203 are inserted into the limiting slots 205, the limiting protrusions 204 overlap the limiting bosses, thereby limiting and fixing the insert rods 203 in the limiting slots 205, and providing stable and effective fixation.

[0033] The upper end of the insertion rod 203 is provided with an inclined abutment surface. The abutment surface and the limiting slot 205 form an insertion interface for inserting the abutment strip 101. This facilitates the smooth insertion of the abutment strip 101 into the insertion interface when the upper mold 1 and the lower mold 2 cooperate with each other. As it extends, it provides a stable and effective abutment push to the upper end of the insertion rod 203, ensuring smooth use.

[0034] like Figure 1 As shown, in some embodiments, the part of the contact strip 101 on the upper mold 1 that contacts the upper end of the insertion rod 203 is provided with a matching inclined surface, so that during use, the upper mold 1 and the lower mold 2 cooperate with each other to stamp the sheet metal parts. With the cooperation between the two, the contact strip 101 can smoothly contact the upper end of the insertion rod 203 and push the insertion rod 203, so that the insertion rod 203 moves together with the limiting protrusion 204. The limiting protrusion 204 separates from the limiting protrusion of the limiting slot 205 and removes the limiting fixation of the insertion rod 203.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stamping die for sheet metal parts, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) and the lower mold (2) are configured to cooperate with each other. The lifting rod (201) of the lower mold (2) is fixedly connected to the connecting rod (202). The limiting protrusions (204) on the two ends of the connecting rod (203) abut against the limiting slot (205). The lifting rod (201) passes through the placement cylinder (207) and extends into the internal cavity of the lower mold (2) to be fixedly connected to the ejector plate (206). A support spring (208) is fitted on the lifting rod (201) between the ejector plate (206) and the placement cylinder (207). An abutting strip (101) is provided on the upper mold (1) at the location corresponding to the limiting slot (205).

2. The stamping die for sheet metal parts according to claim 1, characterized in that: The lower mold (2) has an installation port at the bottom of the cavity for installing the lifting rod (201) and the ejector plate (206). A limiting protrusion ring (209) is provided on the inner wall of the installation port. The ejector plate (206) abuts against the limiting protrusion ring (209). The mounting cylinder (207) is fixedly embedded in the installation port. The bottom of the mounting cylinder (207) has a through-hole for sliding insertion of the lifting rod (201).

3. The stamping die for sheet metal parts according to claim 1, characterized in that: The upper end of the support spring (208) abuts against the ejector plate (206), and the lower end abuts against the bottom inner wall of the mounting cylinder (207).

4. The stamping die for sheet metal parts according to claim 1, characterized in that: A connecting seat (210) is provided at the middle part of the connecting rod (202). The lower end of the lifting rod (201) is fixedly connected to the connecting seat (210). The inserts (203) at both ends of the connecting rod (202) are matched with the corresponding limiting slots (205). The limiting slots (205) are provided with limiting bosses that match the limiting protrusions (204). The limiting protrusions (204) abut against the limiting bosses.

5. A stamping die for sheet metal parts according to claim 4, characterized in that: The upper end of the insertion rod (203) is provided with an inclined abutment surface, and an insertion interface for inserting the abutment strip (101) is formed between the abutment surface and the limiting slot (205).

6. The stamping die for sheet metal parts according to claim 1, characterized in that: The upper mold (1) has a matching inclined surface at the part where the abutting strip (101) contacts the upper end of the insert (203).

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