Aluminum pipe drawing die

Abstract

The utility model discloses an aluminum pipe drawing die, which relates to the technical field of aluminum pipe processing, aims to solve the technical problem that an inner die of a current drawing die cannot be detached and only can be used for processing single-model aluminum pipes, and comprises an outer die, an inner die arranged in a die hole of the outer die, and a cover plate detachably connected with the front end of the inner die, buckle grooves are formed in the two sides of the front end of the inner mold, and a containing groove is formed in the middle of the front end of the inner mold. The mounting plate is mounted on an external driving device, the mounting plate drives the fixing column to move, the fixing column ejects the inner mold to the outer side of the outer mold, the cover plate is pulled to enable the buckling block to be separated from the buckling groove so as to enable the cover plate to be separated from the inner mold, then the connecting screw rod is screwed off, the connecting screw rod is detached from the fixing column and the inner mold, and then the inner mold is pulled out. And the connecting sleeve is separated from the fixing column, and the inner mold is detached for replacement. The utility model has the advantages that the inner mold can be quickly disassembled and replaced, the operation is simple, and the use threshold is low.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum tube processing, and more specifically to an aluminum tube stretching die. Background Art

[0002] Metal stretching is a precision metalworking process widely used to manufacture metal parts of various shapes. It primarily involves using dies to extrude or stretch metal sheets or tubes into parts of specific shapes and sizes. Advantages of the metal stretching process include high-quality, simple and efficient, widely applicable, and energy-efficient. Using dies, the shape and dimensions of parts can be precisely determined, while improving production efficiency and reducing energy consumption. Metal stretching is also used when producing thicker, shorter aluminum tubes, requiring a die to coordinate the stretching process.

[0003] However, when processing thicker aluminum tubes, existing stretching dies have different requirements for tube wall thickness due to their different functions. Furthermore, since the inner mold is often non-detachable, one mold can only stretch one type of aluminum tube, requiring the preparation of a large number of molds. In view of this, we propose an aluminum tube stretching die. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide an aluminum tube drawing die to solve the technical problem that the inner die of the current drawing die cannot be disassembled and can only process a single type of aluminum tube.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an aluminum tube stretching mold, comprising an outer mold, an inner mold arranged in a mold hole of the outer mold and a cover plate detachably connected to the front end of the inner mold, both sides of the front end of the inner mold are provided with snap grooves, and the middle of the front end of the inner mold is provided with a receiving groove, both sides of the rear end of the cover plate are fixedly connected with snap blocks, and the snap blocks and the snap grooves are adapted to each other, and the rear end of the cover plate fits the front end of the inner mold, and a connecting screw is threadedly connected to the inner mold, the head end of the connecting screw is located in the receiving groove, and the tail end of the connecting screw passes through the inner mold and is threadedly connected to a fixing column, the fixing column is inserted with a connecting sleeve, and the front end of the connecting sleeve is fixedly connected to the outside of the inner mold, and the other end of the fixing column is fixedly connected to a mounting plate.

[0006] Preferably, the snap groove consists of an insertion groove and a limiting groove on both sides, and one end of the insertion groove is connected to the limiting groove.

[0007] Preferably, the bottom end of the snap block is provided with a first inclined surface, the top end of the snap block is provided with a second inclined surface, and the snap block is adapted to the limiting groove through the first inclined surface and the second inclined surface.

[0008] Preferably, the insertion slot and the buckle block are inserted in the vertical direction, and the other end of the limit slot and the buckle block are inserted in the rotation direction.

[0009] Preferably, a concave hole is provided at the top end of the limiting groove, and a convex block is adapted to be provided at the top end of the buckle block.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. This utility model installs the mounting plate on an external drive device, which drives the fixed column to move. The fixed column pushes the inner mold out of the outer mold. By pulling the cover plate, the snap block disengages the snap groove, thereby separating the cover plate from the inner mold. The connecting screw is then unscrewed and removed from the fixed column and inner mold. The inner mold is then pulled out to separate the connecting sleeve from the fixed column, and the inner mold is removed for replacement. This utility model can quickly disassemble and replace the inner mold, is simple to operate, and has a low entry level to use.

[0012] 2. The present invention utilizes the snap block provided on the cover plate in conjunction with the corresponding insertion slot and limit slot. During installation, the cover plate needs to be first pushed vertically, with the snap block inserted vertically into the insertion slot. Then, it is pushed horizontally, with the snap block entering one end of the limit slot. Finally, it is rotated and pushed, with the snap block rotated and inserted into the limit slot. Installation is completed by pushing in different directions, preventing the cover plate from falling off due to external forces in a single direction. The present invention requires the cover plate to be moved in different directions during installation, resulting in a tighter connection between the cover plate and the inner mold, and it will not fall off from the inner mold even when subjected to external forces in a single direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the inner mold and its connecting parts of the utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the inner die head end of the utility model;

[0016] Figure 4 This is a structural diagram of the inner die head end of the utility model;

[0017] Figure 5 This is a structural diagram of the cover plate of the utility model;

[0018] Figure 6 This is a side view of the buckle block of the utility model;

[0019] Figure 7 This is a schematic cross-sectional view of the buckle block and one side of the buckle groove of the utility model;

[0020] Figure 8 This is a schematic cross-sectional view of the buckle block and the other side of the buckle groove of the utility model;

[0021] Figure 9 This is a schematic diagram of the state of the inner mold of the utility model when it is disassembled.

[0022] Explanation of the numbers in the figure: 1. Outer mold; 101. Mold hole; 2. Inner mold; 201. Snap groove; 202. Accommodating groove; 203. Insertion groove; 204. Limiting groove; 205. Concave hole; 3. Cover plate; 301. Snap block; 302. First inclined surface; 303. Second inclined surface; 304. Protrusion; 4. Connecting screw; 5. Connecting sleeve; 6. Fixing column; 7. Mounting plate. DETAILED DESCRIPTION

[0023] like Figures 1 to 9 As shown, the utility model relates to an aluminum tube stretching die, comprising an outer die 1, an inner die 2 arranged in a die hole 101 of the outer die 1 and a cover plate 3 detachably connected to the front end of the inner die 2, both sides of the front end of the inner die 2 are provided with snap grooves 201, and a receiving groove 202 is provided in the middle of the front end of the inner die 2, snap blocks 301 are welded on both sides of the rear end of the cover plate 3, and the snap blocks 301 and the snap grooves 201 are adapted to each other, and the rear end of the cover plate 3 fits on the front end of the inner die 2, and a connecting screw 4 is threadedly connected to the inner die 2, the head end of the connecting screw 4 is located in the receiving groove 202, and the tail end of the connecting screw 4 passes through the inner die 2 and is threadedly connected to a fixing column 6, the fixing column 6 is inserted with a connecting sleeve 5, and the front end of the connecting sleeve 5 is connected to the outside of the inner die 2 by bolts, and the other end of the fixing column 6 is connected to a mounting plate 7 by bolts. The utility model is characterized in that the mounting plate 7 is mounted on an external driving device, the mounting plate 7 drives the fixing column 6 to move, and the fixing column 6 pushes the inner mold 2 outward from the outer mold 1. By pulling the cover plate 3, the snap block 301 is disengaged from the snap groove 201, thereby separating the cover plate 3 from the inner mold 2. Then, the connecting screw 4 is unscrewed and removed from the fixing column 6 and the inner mold 2. Then, the inner mold 2 is pulled out, the connecting sleeve 5 is separated from the fixing column 6, and the inner mold 2 is removed for replacement. The utility model can quickly disassemble and assemble the inner mold 2 for replacement, is simple to operate, and has a low threshold for use.

[0024] In an embodiment of the present utility model, in order to prevent the cover plate 3 from falling off the inner mold 2 easily and to facilitate operation during installation, the snap groove 201 is composed of an insertion groove 203 and a limiting groove 204 on both sides, and the insertion groove 203 is connected to one end of the limiting groove 204, and the bottom end of the snap block 301 is provided with a first inclined surface 302, and the top end of the snap block 301 is provided with a second inclined surface 303, and the snap block 301 is adapted to the limiting groove 204 through the first inclined surface 302 and the second inclined surface 303, and the insertion groove 203 and the snap block 301 are inserted in the vertical direction, and the other end of the limiting groove 204 is inserted in the rotational direction with the snap block 301. The present invention utilizes the snap block 301 provided on the cover plate 3, and the matching insertion slot 203 and limit slot 204. During installation, the cover plate 3 first needs to be pushed vertically, with the snap block 301 vertically inserted into the insertion slot 203. Then, it needs to be pushed horizontally, with the snap block 301 entering one end of the limit slot 204. Finally, it needs to be rotated and pushed, with the snap block 301 rotated and inserted into the limit slot 204. By pushing in different directions to complete installation, the cover plate 3 can be prevented from falling off due to external forces in a single direction. The present invention requires moving the cover plate 3 in different directions during installation, which provides a tighter connection between the cover plate 3 and the inner mold 2 and prevents it from falling off due to external forces in a single direction.

[0025] It is worth noting that the top of the limiting groove 204 is provided with a recessed hole 205, and the recessed hole 205 is adapted to be fitted with a protrusion 304, which is provided at the top of the buckle block 301. In the present invention, when the buckle block 301 is inserted into the inner end of the limiting groove 204, the protrusion 304 is inserted into the recessed hole 205, thereby increasing the friction between the buckle block 301 and the limiting groove 204 during rotation, thereby preventing the buckle block 301 from falling out of the limiting groove 204.

[0026] Working principle: This embodiment provides an aluminum tube stretching mold. When the inner mold 2 needs to be replaced, the mounting plate 7 is moved by an external driving device or staff, and the mounting plate 7 drives the fixing column 6 to move. The fixing column 6 pushes the inner mold 2 to the outside of the outer mold 1, and then the cover plate 3 is rotated first. The cover plate 3 drives the snap block 301 to move from one end of the limiting groove 204 to the other end through the cooperation of the first inclined surface 302 and the second inclined surface 303, and then the cover plate 3 is moved horizontally, and the snap block 301 moves from the limiting groove 204 to the insertion groove 203, and then the cover plate 3 is moved longitudinally, and the snap block 301 disengages from the insertion groove 203, thereby removing the cover plate 3, and then unscrewing the connecting screw 4 to separate the fixing column 6 from the inner mold 2, pulling out the inner mold 2, and the connecting sleeve 5 disengages from the fixing column 6, and the inner mold 2 is completely removed for replacement.

[0027] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. An aluminum tube drawing die, characterized in that: The invention comprises an outer mold (1), an inner mold (2) arranged in a mold hole (101) of the outer mold (1), and a cover plate (3) detachably connected to the front end of the inner mold (2), wherein both sides of the front end of the inner mold (2) are provided with snap grooves (201), and the middle of the front end of the inner mold (2) is provided with a receiving groove (202), and both sides of the rear end of the cover plate (3) are fixedly connected with snap blocks (301), and the snap blocks (301) and the snap grooves (201) are adapted to each other, and the rear end of the cover plate (3) is fixedly connected to the inner mold (201). The end is fitted on the front end of the inner mold (2), the inner mold (2) is threadedly connected to a connecting screw (4), the head end of the connecting screw (4) is located in the accommodating groove (202), the tail end of the connecting screw (4) passes through the inner mold (2) and is threadedly connected to a fixing column (6), the fixing column (6) is inserted with a connecting sleeve (5), and the front end of the connecting sleeve (5) is fixedly connected to the outside of the inner mold (2), and the other end of the fixing column (6) is fixedly connected to a mounting plate (7).

2. The aluminum tube drawing die according to claim 1, characterized in that: The buckle slot (201) is composed of an insertion slot (203) and a limiting slot (204) on both sides, and one end of the insertion slot (203) is communicated with the limiting slot (204).

3. The aluminum tube drawing die according to claim 1, characterized in that: The bottom end of the snap block (301) is provided with a first inclined surface (302), the top end of the snap block (301) is provided with a second inclined surface (303), and the snap block (301) is adapted to the limiting groove (204) through the first inclined surface (302) and the second inclined surface (303).

4. The aluminum tube drawing die according to claim 2, characterized in that: The insertion slot (203) and the buckle block (301) are inserted in a vertical direction, and the other end of the limiting slot (204) and the buckle block (301) are inserted in a rotational direction.

5. The aluminum tube drawing die according to claim 2, characterized in that: The top end of the limiting groove (204) is provided with a concave hole (205), the concave hole (205) is adapted to be equipped with a convex block (304), and the convex block (304) is provided at the top end of the buckle block (301).

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