Extrusion necking die

Abstract

The utility model discloses an extrusion necking die, and relates to the technical field of dies. The extrusion necking die comprises a bottom plate, frames are fixedly connected to the two sides of the bottom plate correspondingly, an extension plate is fixedly connected to one side of each frame, an extrusion assembly is fixedly connected to the upper surface of each extension plate, a positioning assembly is fixedly connected to the upper surface of each frame, and clamping grooves are formed in the two sides of the lower surface of each positioning assembly correspondingly; according to the copper pipe extrusion device, the extrusion assembly is arranged, a first motor is started through an external power source to drive a mounting block to rotate, an extrusion plate is made to be at a needed inclination angle, then a first air cylinder is started to push the extrusion plate to extrude a copper pipe, and the copper pipe is extruded while the copper pipe is driven by a rotating assembly to rotate; by means of the arrangement, different use requirements can be met conveniently, the die does not need to be replaced frequently, and the situation that the production efficiency is affected and the die cost is increased is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, concretely is a kind of extrusion necking die. BACKGROUND

[0002] In prior art, for the extrusion necking processing of copper pipe, usually select appropriate copper alloy material and design necking die, then heat the copper pipe to suitable temperature to improve plasticity, then push it into die to form on extruding machine by applying pressure, after extrusion, need to be cooled and possibly annealing treatment to eliminate internal stress, restore the toughness of copper, finally, carry out size and quality detection, ensure that finished product meets the requirements, need to pay attention to die material, temperature control, extrusion speed and stress management etc. Key factors in the whole process to ensure processing quality.

[0003] However, in actual application process, when different shapes and sizes of steel pipe need to be processed, different dies need to be set, and the die requires high precision and complex manufacturing process, which consumes a lot of time and cost.

[0004] Therefore, the utility model provides an extrusion necking die to solve the above problems. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of prior art, the utility model provides an extrusion necking die to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: an extrusion necking die, comprising a bottom plate, the two sides of the bottom plate are fixedly connected with frames, one side of the frame is fixedly connected with an extension plate, the upper surface of the extension plate is fixedly connected with an extrusion assembly, the upper surface of the frame is fixedly connected with a positioning assembly, the lower surface of the positioning assembly is provided with clamping grooves on both sides, the inside of the clamping groove is clamped with a supporting assembly, one side of the upper surface of the bottom plate is fixedly installed with a rotating assembly, the other side of the upper surface of the bottom plate is fixedly connected with a stress assembly.

[0007] The extrusion assembly comprises a first air cylinder, the lower surface of the first air cylinder is fixedly connected with the upper surface of the extension plate, the output end of the first air cylinder is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a mounting block, one side of the mounting block is rotatably connected with an extrusion plate.

[0008] The further improvement of the utility model technical scheme is that: the positioning assembly comprises a second air cylinder, the lower surface of the second air cylinder is fixedly connected with the upper surface of the frame, the output end of the second air cylinder is fixedly connected with an upper pressing plate, the middle part of the lower surface of the upper pressing plate is rotatably connected with a first ball.

[0009] The further improvement in the utility model technical scheme lies in that the supporting assembly comprises a positioning rod, the top end of the positioning rod is clamped in the inside of the clamping groove, the bottom end of the positioning rod is fixedly connected with a placing plate, and the middle part of the upper surface of the placing plate is rotatably connected with a second ball.

[0010] The further improvement in the utility model technical scheme lies in that the rotating assembly comprises a second motor, the lower surface of the second motor is fixedly installed on one side of the upper surface of the bottom plate, the output end of the second motor is fixedly connected with a mounting ring, the inner wall of the mounting ring is fixedly connected with a first hydraulic rod, and one end of the first hydraulic rod is fixedly connected with a clamping plate.

[0011] The further improvement in the utility model technical scheme lies in that the stress assembly comprises a flat plate, the lower surface of the flat plate is fixedly connected with the other side of the upper surface of the bottom plate, the upper surface of the flat plate is fixedly connected with a second hydraulic rod, and the top end of the second hydraulic rod is fixedly connected with an arc-shaped plate.

[0012] The further improvement in the utility model technical scheme lies in that the lower surface of the placing plate is fixedly connected with the middle part of the upper surface of the bottom plate, and the upper surface of the second ball is lapped with a copper pipe.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The extrusion assembly is arranged, the first motor is started to drive the mounting block to rotate, the extrusion plate is at the required inclination angle, the first cylinder is started to push the extrusion plate to extrude the copper pipe, the copper pipe is rotated by the rotating assembly, and the extrusion plate rotates to perform annular extrusion on the copper pipe, so that different use requirements can be met, the mold does not need to be frequently replaced, the production efficiency is not affected, and the mold cost is reduced.

[0015] 2. The stress assembly is arranged, the second hydraulic rod is started to push the arc-shaped plate to contact the lower surface of the copper pipe, the support force is provided below the copper pipe, and the copper pipe is prevented from being bent during the pressing process of the extrusion plate, so that the loss is reduced. DRAWINGS

[0016] Figure 1 It is a structure schematic view of the extrusion die;

[0017] Figure 2 It is a structure schematic view of the first motor in the extrusion die;

[0018] Figure 3 It is a structure schematic view of the upper pressing plate in the extrusion die;

[0019] Figure 4 It is a structure schematic view of the mounting ring in the extrusion die;

[0020] Figure 5The structure diagram of the arc-shaped plate in the extrusion die.

[0021] In the figure: 1, the base plate; 2, the frame; 3, the extension plate; 4, the first cylinder; 5, the first motor; 6, the mounting block; 7, the extrusion plate; 8, the second cylinder; 9, the upper pressing plate; 10, the first ball; 11, the positioning rod; 12, the placing plate; 13, the second ball; 14, the second motor; 15, the mounting ring; 16, the first hydraulic rod; 17, the clamping plate; 18, the flat plate; 19, the second hydraulic rod; 20, the arc-shaped plate; 21, the copper pipe. DETAILED DESCRIPTION

[0022] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings represent the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0023] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0024] In addition, for the purpose of better illustrating the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some examples, methods, means, elements well known to those skilled in the art are not described in detail, so as to highlight the main idea of the present application.

[0025] Reference Figures 1-5 The utility model provides 3 kinds of technical schemes:

[0026] Embodiment one:

[0027] An extrusion die, comprising a base plate 1, both sides of the base plate 1 are fixedly connected with frames 2, one side of the frame 2 is fixedly connected with an extension plate 3, the upper surface of the extension plate 3 is fixedly connected with an extrusion assembly, the upper surface of the frame 2 is fixedly connected with a positioning assembly, both sides of the lower surface of the positioning assembly are provided with clamping grooves, the clamping grooves are clamped with supporting assemblies, one side of the upper surface of the base plate 1 is fixedly installed with a rotating assembly, the other side of the upper surface of the base plate 1 is fixedly connected with a stress assembly;

[0028] The extrusion assembly comprises a first cylinder 4, the lower surface of the first cylinder 4 is fixedly connected to the upper surface of the extension plate 3, the output end of the first cylinder 4 is fixedly connected with a first motor 5, the output end of the first motor 5 is fixedly connected with a mounting block 6, one side of the mounting block 6 is rotatably connected with an extrusion plate 7, the first motor 5 is started by an external power supply to drive the mounting block 6 to rotate, so that the extrusion plate 7 is at a required inclination angle, and then the first cylinder 4 is started to push the extrusion plate 7 to extrude the copper pipe 21, while the copper pipe 21 is rotated by the rotating assembly, the extrusion plate 7 rotates to extrude the copper pipe 21 in a ring shape, which facilitates adaptation to different use requirements, avoids the need to frequently replace molds, and avoids affecting production efficiency and increasing mold costs.

[0029] Embodiment two:

[0030] On the basis of embodiment one:

[0031] The positioning assembly comprises a second cylinder 8, the lower surface of the second cylinder 8 is fixedly connected to the upper surface of the frame 2, the output end of the second cylinder 8 is fixedly connected with an upper pressing plate 9, the middle part of the lower surface of the upper pressing plate 9 is rotatably connected with a first ball 10, the second cylinder 8 is started to push the upper pressing plate 9 to move downward, so as to position the copper pipe 21 and avoid shaking, and the first ball 10 rotatably connects the copper pipe 21 with the upper pressing plate 9 to avoid affecting the rotation of the copper pipe 21.

[0032] The supporting assembly comprises a positioning rod 11, the top end of the positioning rod 11 is clamped in the inner part of the clamping groove, the bottom end of the positioning rod 11 is fixedly connected with a placing plate 12, the middle part of the upper surface of the placing plate 12 is rotatably connected with a second ball 13, the positioning rod 11 is inserted into the inner part of the clamping groove, so that the upper pressing plate 9 coincides with the placing plate 12, and the combination of the two facilitates the extrusion positioning of the copper pipe 21, and the copper pipe 21 is placed on the outer surface of the second ball 13 to avoid affecting the rotation of the copper pipe 21.

[0033] The rotating assembly comprises a second motor 14, the lower surface of the second motor 14 is fixedly installed on one side of the upper surface of the bottom plate 1, the output end of the second motor 14 is fixedly connected with a mounting ring 15, the inner wall of the mounting ring 15 is fixedly connected with a first hydraulic rod 16, one end of the first hydraulic rod 16 is fixedly connected with a clamping plate 17, one end of the copper pipe 21 is inserted into the inner part of the mounting ring 15, the first hydraulic rod 16 is started to push the clamping plate 17 to move to the middle part, so as to clamp and fix the copper pipe 21, then the second motor 14 is started by an external power supply to drive the copper pipe 21 to rotate, which facilitates the extrusion assembly to extrude and shape the copper pipe 21 in a ring shape.

[0034] The stressed assembly includes a flat plate 18, the lower surface of the flat plate 18 is fixedly connected to the other side of the upper surface of the bottom plate 1, the upper surface of the flat plate 18 is fixedly connected with a second hydraulic rod 19, the top end of the second hydraulic rod 19 is fixedly connected with an arc plate 20, starting the second hydraulic rod 19 to push the arc plate 20 to contact the lower surface of the copper pipe 21, providing support force for the lower part of the copper pipe 21, avoiding the copper pipe 21 from being bent during the process of the pressing plate 7 pressing down, and increasing the loss.

[0035] The lower surface of the placing plate 12 is fixedly connected to the middle part of the upper surface of the bottom plate 1, and the upper surface of the second ball 13 is overlapped with the copper pipe 21.

[0036] Embodiment three:

[0037] On the basis of the embodiment one and the embodiment two:

[0038] Firstly, one end of the copper pipe 21 is inserted into the inside of the mounting ring 15, the first hydraulic rod 16 is started to push the clamping plate 17 to move to the middle part, so as to clamp and fix the copper pipe 21, then the second air cylinder 8 is started to push the upper pressing plate 9 to move down, the positioning rod 11 is inserted into the clamping groove, so that the upper pressing plate 9 is overlapped with the placing plate 12, and the combination of the two is convenient for the copper pipe 21 to be positioned by extrusion, secondly, the second hydraulic rod 19 is started to push the arc plate 20 to contact the lower surface of the copper pipe 21, providing support force for the lower part of the copper pipe 21, finally, the first motor 5 is started to drive the mounting block 6 to rotate, so that the pressing plate 7 is at the required inclination angle, and then the first air cylinder 4 is started to push the pressing plate 7 to extrude the copper pipe 21, the copper pipe 21 is driven to rotate by the second motor 14, and the pressing plate 7 is rotated to extrude the copper pipe 21 in a ring shape.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An extrusion die comprising a base plate (1), characterised in that: Both sides of the bottom plate (1) are fixedly connected with the frame (2), one side of the frame (2) is fixedly connected with the extension plate (3), the upper surface of the extension plate (3) is fixedly connected with the extrusion assembly, the upper surface of the frame (2) is fixedly connected with the positioning assembly, both sides of the lower surface of the positioning assembly are provided with clamping grooves, the inside of the clamping grooves is clamped with the supporting assembly, one side of the upper surface of the bottom plate (1) is fixedly installed with the rotating assembly, the other side of the upper surface of the bottom plate (1) is fixedly connected with the stress assembly; The extrusion assembly comprises a first air cylinder (4), the lower surface of the first air cylinder (4) is fixedly connected with the upper surface of the extension plate (3), the output end of the first air cylinder (4) is fixedly connected with a first motor (5), the output end of the first motor (5) is fixedly connected with a mounting block (6), one side of the mounting block (6) is rotatably connected with an extrusion plate (7).

2. An extrusion die of claim 1, wherein: The positioning assembly comprises a second air cylinder (8), the lower surface of the second air cylinder (8) is fixedly connected with the upper surface of the frame (2), the output end of the second air cylinder (8) is fixedly connected with an upper pressing plate (9), the lower surface of the upper pressing plate (9) is rotatably connected with a first ball (10) in the middle.

3. An extrusion die of claim 1, wherein: The supporting assembly comprises a positioning rod (11), the top end of the positioning rod (11) is clamped in the inside of the clamping groove, the bottom end of the positioning rod (11) is fixedly connected with a placing plate (12), the upper surface of the placing plate (12) is rotatably connected with a second ball (13) in the middle.

4. An extrusion die of claim 1 wherein: The rotating assembly comprises a second motor (14), the lower surface of the second motor (14) is fixedly installed on one side of the upper surface of the bottom plate (1), the output end of the second motor (14) is fixedly connected with a mounting ring (15), the inner wall of the mounting ring (15) is fixedly connected with a first hydraulic rod (16), one end of the first hydraulic rod (16) is fixedly connected with a clamping plate (17).

5. An extrusion die of claim 1 wherein: The stress assembly comprises a flat plate (18), the lower surface of the flat plate (18) is fixedly connected with the other side of the upper surface of the bottom plate (1), the upper surface of the flat plate (18) is fixedly connected with a second hydraulic rod (19), the top end of the second hydraulic rod (19) is fixedly connected with an arc plate (20).

6. An extrusion die of the type defined in claim 3, characterised in that: The lower surface of the placing plate (12) is fixedly connected with the middle of the upper surface of the bottom plate (1), the upper surface of the second ball (13) is overlapped with a copper pipe (21).

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