Pre-pressing extrusion die for forming aluminum shell

Abstract

The utility model discloses an aluminum shell forming pre-pressing extrusion die which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a female die, a stamping head is arranged in the female die, the upper surface of the bottom plate is fixedly connected with two supports, the side faces, close to each other, of the two supports are jointly and fixedly connected with a transverse plate, and the transverse plate is fixedly connected with the female die. A hydraulic rod is fixedly connected to the upper surface of the transverse plate, the telescopic end of the hydraulic rod is fixedly connected with the upper surface of a punching head, a stepped groove is formed in the inner bottom wall of the female die, and a through hole is formed in the upper surface of the bottom plate. The punching head is pushed downwards through the hydraulic rod, the punching head can be matched with the female die to conduct extrusion forming on an aluminum shell, the sliding plate can be pushed to move upwards by means of the elastic force of the spring after the aluminum shell is punched and formed through the punching head, then the connecting rod pushes the ejector block to move upwards, and therefore the aluminum shell in the female die is moved out of the female die. And the aluminum shell is demolded, and the machining efficiency of the aluminum shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an aluminum shell forming pre-pressing extrusion mold. Background Art

[0002] A mold is a tool that uses a specific shape to form a blank (solid or liquid) into a product with a certain shape and size under the action of an external force. The mold is widely used in forging, stamping, powder metallurgy pressing, pressure casting, and compression and injection molding of engineering plastics, rubber, ceramics and other products. The mold is generally divided into two parts, which are divided into a movable mold and a fixed mold according to the state of motion, and into a concave mold and a convex mold according to the shape. In the process of processing aluminum shells, an extrusion die is needed.

[0003] Reference patent document publication number CN209531739U discloses an aluminum shell preforming extrusion die, comprising a base, an L-shaped lever arm fixedly connected to the upper surface of the base, a hydraulic cylinder fixedly connected to the top of the L-shaped lever arm, a punch threadedly connected to the output end of the hydraulic cylinder, a crossbeam fixedly connected to the upper surface of the base through a fixed rod, a barrel fixedly connected to the upper surface of the crossbeam, the barrel being located directly below the punch, and a through hole opened on the surface of the crossbeam. The aluminum shell preforming extrusion die is provided with a through hole, a limit rod, a die, a limit groove, a bracket, a threaded column, an L-shaped handle, a fixed disk and a convex block. By rotating the L-shaped handle, the fixed disk is raised so that the convex block presses against the bottom of the die, so that the die is close to the crossbeam. The limit rod and the limit groove cooperate to avoid the die from being misaligned, so that the die and the punch can be replaced when the extrusion die is in use, so that aluminum products of different shapes can be processed.

[0004] Although the extrusion die can be replaced during use in the above patent, there are still some shortcomings during use. For example, it is not convenient to quickly demold the aluminum shell after extrusion molding during use, which results in the workers spending a long time to demold the aluminum shell, affecting the processing efficiency. Therefore, an aluminum shell molding pre-compression extrusion die is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an aluminum shell forming pre-pressing extrusion die.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aluminum shell forming pre-pressing extrusion die, comprising a base plate, the upper surface of the base plate is fixedly connected to a die, a punch head is arranged inside the die, two brackets are fixedly connected to the upper surface of the base plate, a side surface of the two brackets close to each other is commonly fixedly connected to a cross plate, a hydraulic rod is fixedly connected to the upper surface of the cross plate, the telescopic end of the hydraulic rod is fixedly connected to the upper surface of the punch head, a stepped groove is provided on the inner bottom wall of the die, a through hole is provided on the upper surface of the base plate, a cylinder is fixedly connected to the bottom surface of the base plate, two groups of springs are fixedly connected to the inner bottom wall of the cylinder, the top ends of the two groups of springs are commonly fixedly connected to a slide plate, a connecting rod is fixedly connected to the upper surface of the slide plate, the top end of the connecting rod passes through the through hole and extends to the inside of the stepped groove, and the top end of the connecting rod is fixedly connected to a top block.

[0007] As a further description of the above technical solution:

[0008] A group of first vent holes are formed on the outer surface of the cylinder, and a group of second vent holes are formed on the outer surface of the cylinder.

[0009] As a further description of the above technical solution:

[0010] The inner wall of the cylinder is fixedly connected with two limiting rings, and the two limiting rings are respectively located above the slide plate and below the slide plate.

[0011] As a further description of the above technical solution:

[0012] The outer surface of the telescopic end of the hydraulic rod is fixedly connected with a fixing seat, and the bottom surface of the fixing seat is fixedly connected with the upper surface of the punching head.

[0013] As a further description of the above technical solution:

[0014] A reinforcing strip is fixedly connected to the bottom surface of the transverse plate, and the side surfaces of the two reinforcing strips that are far away from each other are respectively fixedly connected to the side surfaces of the two brackets that are close to each other.

[0015] As a further description of the above technical solution:

[0016] A sliding groove is provided on the side where the two brackets are close to each other, and a slider is slidably connected to the inner wall of each sliding groove. An L-shaped plate is fixedly connected to the side where the two sliders are close to each other, and the bottom surface of each L-shaped plate is fixedly connected to the upper surface of the punch head.

[0017] The utility model has the following beneficial effects:

[0018] 1. Compared with the prior art, the aluminum shell forming pre-compression extrusion die is provided with a hydraulic rod to push the punch head downward, so that the punch head can cooperate with the die to extrude the aluminum shell, and utilize the elastic force of the spring to push the slide plate to move upward after the punch head stamps the aluminum shell, so that the connecting rod pushes the top block to move upward, thereby moving the aluminum shell inside the die out of the die, demolding the aluminum shell, and improving the processing efficiency of the aluminum shell.

[0019] 2. Compared with the prior art, this aluminum shell forming pre-compression extrusion die, by providing the cooperation of the first vent hole and the second vent hole, can make the slide plate more stable during the up and down movement, prevent the slide plate from being affected by air pressure during the movement, and use a limiting ring to limit the slide plate to prevent the slide plate from blocking the first vent hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an aluminum shell forming pre-pressing extrusion die proposed by the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a top view of a pre-pressing extrusion die for forming an aluminum shell proposed by the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of a front cross-section of a pre-pressing extrusion die for forming an aluminum shell proposed by the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the three-dimensional structure of a push plate in a pre-pressing extrusion die for forming an aluminum shell.

[0024] Legend:

[0025] 1. Bottom plate; 2. L-shaped plate; 3. Slider; 4. Bracket; 5. Slide; 6. Reinforcement strip; 7. Horizontal plate; 8. Hydraulic rod; 9. Fixed seat; 10. Punch head; 11. Second vent hole; 12. Cylinder; 13. Die; 14. Limiting ring; 15. Slide plate; 16. Top block; 17. Step groove; 18. Through hole; 19. First vent hole; 20. Spring; 21. Connecting rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-4The utility model provides an aluminum shell forming pre-pressing extrusion die, including a bottom plate 1, a concave die 13 is fixedly connected to the upper surface of the bottom plate 1, a punch head 10 is arranged inside the concave die 13, two brackets 4 are fixedly connected to the upper surface of the bottom plate 1, a side of the two brackets 4 close to each other is fixedly connected to a cross plate 7, a reinforcing strip 6 is fixedly connected to the bottom surface of the cross plate 7, a side of the two reinforcing strips 6 away from each other is respectively fixedly connected to a side of the two brackets 4 close to each other, the cross plate 7 can be reinforced by providing the reinforcing strip 6 to prevent the cross plate 7 from loosening during use, a hydraulic rod 8 is fixedly connected to the upper surface of the cross plate 7, and the telescopic end of the hydraulic rod 8 is fixedly connected to the upper surface of the punch head 10 The outer surface of the telescopic end of the hydraulic rod 8 is fixedly connected with a fixing seat 9, and the bottom surface of the fixing seat 9 is fixedly connected to the upper surface of the punch head 10. The fixing seat 9 can be used to reinforce the punch head 10 to prevent the punch head 10 from loosening. A stepped groove 17 is provided on the inner bottom wall of the die 13, and a through hole 18 is provided on the upper surface of the bottom plate 1. The bottom surface of the bottom plate 1 is fixedly connected with a cylinder 12, and two groups of springs 20 are fixedly connected to the inner bottom wall of the cylinder 12. The top ends of the two groups of springs 20 are fixedly connected with a slide plate 15. The upper surface of the slide plate 15 is fixedly connected with a connecting rod 21. The top end of the connecting rod 21 passes through the through hole 18 and extends to the inside of the stepped groove 17, and the top end of the connecting rod 21 is fixedly connected with a top block 16.

[0028] In this embodiment, a group of first air holes 19 are provided on the outer surface of the cylinder 12, and a group of second air holes 11 are provided on the outer surface of the cylinder 12. The air inside the cylinder 12 can be discharged through the first air holes 19 and the second air holes 11, so that the slide plate 15 can move up and down. Two limit rings 14 are fixedly connected to the inner wall of the cylinder 12. The two limit rings 14 are respectively located above the slide plate 15 and below the slide plate 15. The limit rings 14 can limit the slide plate 15 to prevent the slide plate 15 from blocking the first air holes 19. A slide groove 5 is provided on the side where the two brackets 4 are close to each other. A slider 3 is slidably connected to the inner wall of each slide groove 5. The side where the two sliders 3 are close to each other is fixedly connected to an L-shaped plate 2. The bottom surface of each L-shaped plate 2 is fixedly connected to the upper surface of the punch head 10. The slider 3 and the slide groove 5 can be provided to limit the punch head 10 to prevent the punch head 10 from shaking during the movement.

[0029] Working principle: When in use, the aluminum shell raw material is placed into the interior of the die 13, and then the hydraulic rod 8 is started. The hydraulic rod 8 pushes the punch head 10 to move downward to extrude the raw material. After the raw material is extruded, it will push the top block 16 to move downward, so that the top block 16 is flush with the inner bottom wall of the die 13, and then the raw material begins to deform under pressure to form an aluminum shell. After the extrusion is completed, the hydraulic rod 8 is reset, and the elastic force of the spring 20 is used to move the slide plate 15 upward. The slide plate 15 pushes the top block 16 upward through the connecting rod 21, so that the top block 16 applies thrust to the aluminum shell, so that the aluminum shell moves out of the die 13, thereby facilitating the staff to take the aluminum shell.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-pressing extrusion die for forming an aluminum shell, comprising a bottom plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a die (13), a punch head (10) is provided inside the die (13), the upper surface of the base plate (1) is fixedly connected to two brackets (4), a side surface of the two brackets (4) close to each other is fixedly connected to a cross plate (7), the upper surface of the cross plate (7) is fixedly connected to a hydraulic rod (8), the telescopic end of the hydraulic rod (8) is fixedly connected to the upper surface of the punch head (10), the inner bottom wall of the die (13) is provided with a stepped groove (17), and the bottom A through hole (18) is provided on the upper surface of the plate (1); the bottom surface of the bottom plate (1) is fixedly connected to a cylinder (12); the inner bottom wall of the cylinder (12) is fixedly connected to two groups of springs (20); the top ends of the two groups of springs (20) are fixedly connected to a slide plate (15); the upper surface of the slide plate (15) is fixedly connected to a connecting rod (21); the top end of the connecting rod (21) passes through the through hole (18) and extends to the inside of the stepped groove (17); the top end of the connecting rod (21) is fixedly connected to a top block (16).

2. The aluminum shell forming pre-pressing extrusion die according to claim 1, characterized in that: A group of first ventilation holes (19) are formed on the outer surface of the cylinder (12), and a group of second ventilation holes (11) are formed on the outer surface of the cylinder (12).

3. The aluminum shell forming pre-pressing extrusion die according to claim 1, characterized in that: Two limiting rings (14) are fixedly connected to the inner wall of the cylinder (12), and the two limiting rings (14) are respectively located above the slide plate (15) and below the slide plate (15).

4. The aluminum shell forming pre-pressing extrusion die according to claim 1, characterized in that: The outer surface of the telescopic end of the hydraulic rod (8) is fixedly connected to a fixing seat (9), and the bottom surface of the fixing seat (9) is fixedly connected to the upper surface of the punch head (10).

5. The aluminum shell forming pre-pressing extrusion die according to claim 1, characterized in that: The bottom surface of the transverse plate (7) is fixedly connected with a reinforcement strip (6), and the side surfaces of the two reinforcement strips (6) that are away from each other are respectively fixedly connected to the side surfaces of the two brackets (4) that are close to each other.

6. The aluminum shell forming pre-pressing extrusion die according to claim 1, characterized in that: A sliding groove (5) is provided on the side where the two brackets (4) are close to each other, and the inner wall of each sliding groove (5) is slidably connected to a slider (3), and the side where the two sliders (3) are close to each other is fixedly connected to an L-shaped plate (2), and the bottom surface of each L-shaped plate (2) is fixedly connected to the upper surface of the punch head (10).

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