Sheet metal mold with assembly type mold cavity

Abstract

The utility model relates to a sheet metal die with an assembly type die cavity. The sheet metal die comprises an upper die plate and a lower die plate, installation columns are oppositely installed at the upper end of the lower die plate, a plurality of springs are sleeved on the outer surfaces of the installation columns, an installation body is installed at the lower end of the upper die plate, a groove is formed in the installation body, and a stamping body is fixedly installed on the surface of the groove. The stamping body is composed of a body and a punch. The punch and the body are integrally formed, and the punch and the body are in arc transition. The utility model solves the problems in the prior art that although a cone is convenient to punch, the periphery of a punched plate and the punching position are easy to bend (burrs) towards the punching direction, so that the punching pressure of a punching cutter and the plate is large, the burrs formed by punching rub the surface of the punching cutter, and the service life of the punching cutter is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal moulds, in particular to a sheet metal mould with an assembled mould cavity. Background Art

[0002] In sheet metal dies for punching plates, the punching knife usually punches holes directly on the plate. This type of punching is particularly wear-prone to the punching knife, and if the plate is thick, punching is more difficult. Therefore, in order to facilitate punching, a mold that can solve this problem is urgently needed.

[0003] However, in the existing technology, the ends of the punching body / punching knife are either flat or conical. These two methods are the most common in the existing technology. Although the conical body can facilitate punching, it is easy to cause the plate after punching to bend in the punching direction (burrs) around the punching position, so that the punching pressure between the punching knife and the plate is high and the burrs formed by punching cause friction on the surface of the punching knife, reducing the service life of the punching knife.

[0004] In order to make punching more convenient and to minimize the stamping friction between the punching body and the sheet metal, a sheet metal mold with an assembled mold cavity is proposed. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a sheet metal mold with an assembled mold cavity, which solves the problem that although the cone in the prior art can facilitate punching, it is easy for the plate after punching to bend in the punching direction (burrs) around the punching position, so that the punching pressure between the punching knife and the plate is high and the burrs formed by the punching cause friction on the surface of the punching knife, thereby reducing the service life of the punching knife.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sheet metal mold with an assembled mold cavity, comprising an upper mold plate and a lower mold plate, wherein the upper end of the lower mold plate is provided with a mounting column having a sleeve spring on the outer surface, and the lower end of the upper mold plate is provided with a mounting body, wherein a groove is provided in the mounting body, and a punching body is fixedly installed on the surface of the groove;

[0007] The punch body is composed of a body and a punch;

[0008] The punch and the body are formed as one piece, and the punch and the body are in an arc shape.

[0009] Through the above technical solution, further, the upper template is penetrated by the mounting column, and the lower end surface of the upper template contacts the spring located on the outer surface of the mounting column, and slides up and down along the vertical axis direction of the mounting column.

[0010] Furthermore, a pressure-applying body is threadedly mounted on the upper end of the upper template.

[0011] As a preferred technical solution, a groove is opened in the middle of the upper end of the lower template, a mounting block is installed on the surface of the groove, a mold core is installed on the upper end surface of the mounting block, the lower template, the mounting block and the mold core are penetrated by through holes, and a groove is opened on the upper end surface of the mold core.

[0012] Furthermore, a telescopic spring is fixedly installed on the surface of the groove of the installation body and is located at the periphery of the stamping body.

[0013] As a preferred technical solution, the mounting block and the mold core are detachable, and the mounting block and the lower mold plate are detachable.

[0014] Compared with the prior art, the utility model provides a sheet metal mold with an assembled mold cavity, which has the following beneficial effects:

[0015] 1. This utility model refers to Figure 3 and Figure 4 It can be seen that when punching a hole in the sheet metal, the cone below it contacts the sheet metal first, causing a hole in the sheet metal, and then due to the excessive setting of the arc, the periphery of the hole expands along the arc and then is cut off. In this way, the problem in the prior art that the cone can facilitate punching but easily causes the sheet metal after punching to bend in the punching direction (burrs) around the punching position, so that the punching pressure between the punching knife and the sheet metal is high and the burrs formed by the punching cause friction on the surface of the punching knife, thereby reducing the service life of the punching knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a sheet metal mold with an assembled mold cavity of the utility model;

[0017] Figure 2 This is a schematic diagram of the main view of a sheet metal mold structure with an assembled mold cavity according to the utility model;

[0018] Figure 3 This is a schematic diagram of the full cross-section structure of a sheet metal mold with an assembled mold cavity of the utility model;

[0019] Figure 4 The utility model is a sheet metal mold with an assembled mold cavity Figure 3 Schematic diagram of the local enlarged structure at point A.

[0020] In the figure: 1. upper template; 2. lower template; 3. mounting column; 4. pressure body; 5. mounting body; 6. mounting block; 7. mold core; 8. groove; 9. telescopic spring; 10. stamping body. DETAILED DESCRIPTION

[0021] 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. Example

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a sheet metal mold with an assembled mold cavity, comprising an upper mold plate 1 and a lower mold plate 2, wherein the upper end of the lower mold plate 2 is provided with a mounting column 3 with a sleeve spring on the outer surface, and the lower end of the upper mold plate 1 is provided with a mounting body 5, wherein a groove is provided in the mounting body 5, and a punching body 10 is fixedly installed on the surface of the groove;

[0023] The punch body 10 is composed of a body and a punch;

[0024] The punch and the body are formed as one piece, and the punch and the body are in an arc-shaped transition.

[0025] In this embodiment, the specific working principle is: when punching a hole in the sheet metal, through the action of the stamping body 10, because the stamping body 10 is composed of a main body and a punch, and the punch and the main body are in an arc-shaped transition, therefore, when punching a hole in the sheet metal, the hole is first broken and then expanded to the periphery, and then cut off. This method reduces the friction of the burr on the surface of the stamping body 10, and reduces the impact force between the stamping body 10 and the sheet metal, thereby greatly improving the service life of the stamping body 10.

[0026] See also Figure 1 It can be seen that the upper template 1 is penetrated by the mounting column 3, and the lower end surface of the upper template 1 is in contact with the spring located on the outer surface of the mounting column 3, and slides up and down along the vertical axis direction of the mounting column 3. The upper template 1 is mainly connected / contacted with the external hydraulic cylinder through the action of the pressure body 4, and the pressure body 4 is driven downward by the external hydraulic pressure to drive the upper template 1 to move downward, and then reset by the spring.

[0027] See also Figure 1 It can be seen that a pressure-applying body 4 is threadedly mounted on the upper end of the upper template 1 , and the pressure-applying body 4 contacts with an external hydraulic cylinder, thereby driving the upper template 1 to move downward.

[0028] See also Figure 3 It can be seen that a groove is opened in the middle of the upper end of the lower template 2, a mounting block 6 is installed on the surface of the groove, a mold core 7 is installed on the upper end surface of the mounting block 6, the lower template 2, the mounting block 6, and the mold core 7 are penetrated by a through hole used for blanking, and a groove 8 is opened on the upper end surface of the mold core 7 for facilitating sheet metal processing.

[0029] See also Figure 2It can be seen that a telescopic spring 9 is fixedly installed on the surface of the groove of the mounting body 5 and is located outside the stamping body 10. The telescopic spring 9 mainly plays a buffering role. Figure 2 It can be seen that the length of the telescopic spring 9 is longer than the length of the stamping body 10, so the sheet metal can be compressed in advance to prevent the sheet metal from shaking or moving.

[0030] The mounting block 6 and the mold core 7 are detachable, and the mounting block 6 and the lower mold plate 2 are detachable.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sheet metal mold with an assembled mold cavity, comprising an upper mold plate (1) and a lower mold plate (2), wherein the upper end of the lower mold plate (2) is provided with a mounting column (3) having a plurality of springs on the outer surface, wherein: A mounting body (5) is mounted on the lower end of the upper template (1), a groove is provided in the mounting body (5), and a punching body (10) is fixedly mounted on the surface of the groove; The punch body (10) is composed of a body and a punch; The punch and the body are formed as one piece, and the punch and the body are in an arc-shaped transition.

2. A sheet metal mold with an assembled mold cavity according to claim 1, characterized in that: The upper template (1) is penetrated by the mounting column (3), and the lower end surface of the upper template (1) contacts a spring located on the outer surface of the mounting column (3), and slides up and down along the vertical axis direction of the mounting column (3).

3. The sheet metal mold with an assembled mold cavity according to claim 1, characterized in that: A pressure-applying body (4) is threadedly mounted on the upper end of the upper template (1).

4. The sheet metal mold with an assembled mold cavity according to claim 1, characterized in that: A groove is provided in the middle of the upper end of the lower template (2); a mounting block (6) is mounted on the surface of the groove; a mold core (7) is mounted on the upper end surface of the mounting block (6); the lower template (2), the mounting block (6) and the mold core (7) are penetrated by a through hole; and a groove (8) is provided on the upper end surface of the mold core (7).

5. The sheet metal mold with an assembled mold cavity according to claim 1, characterized in that: A telescopic spring (9) is fixedly mounted on the surface of the groove of the mounting body (5) and is located on the periphery of the stamping body (10).

6. The sheet metal mold with an assembled mold cavity according to claim 4, characterized in that: The mounting block (6) and the mold core (7) are detachable, and the mounting block (6) and the lower mold plate (2) are detachable.

Images