CN113199771A

CN113199771A - High-speed compression fittings of fiber reinforced plastic pipe and aluminum product

Info

Publication number: CN113199771A
Application number: CN202110760136.2A
Authority: CN
Inventors: 李建军
Original assignee: Shandong Yongfeng Hydraulic Machinery Co ltd
Current assignee: Shandong Yongfeng Hydraulic Machinery Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-08-03

Abstract

The invention provides a high-speed pressing device for fiber reinforced plastic pipes and aluminum materials, which comprises a rack, wherein a buckling device is arranged on the rack and comprises a buckling oil cylinder, a buckling mould for placing a pressed pipe is arranged in the buckling oil cylinder, the buckling device also comprises a pipe shaping device, and the buckling oil cylinder, the buckling mould and the pipe shaping device are coaxially arranged; the arrangement of the buckling oil cylinder and the buckling mould realizes buckling action by mechanical conversion of oil pressure, realizes uniform stress on a buckling workpiece, prevents the buckling workpiece from being damaged, and realizes perfect pressing of an aluminum part and glass fiber reinforced plastic; the setting device of the pipe is positioned in the middle of the buckling workpiece so as to prevent the buckling workpiece from deforming and damaging in the buckling process; the qualification rate of the novel produced press-fit product reaches 99%, the product is stable and reliable, and the production cost is saved.

Description

High-speed compression fittings of fiber reinforced plastic pipe and aluminum product

Technical Field

The invention relates to a pipe pressing device.

In particular to a high-speed pressing device of a fiber reinforced plastic pipe and an aluminum material.

Background

The fiber reinforced plastic is glass fiber reinforced plastic, and is reinforced with glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin as matrix and glass fiber or its product as reinforcing material. Can replace steel to manufacture machine parts, automobile shells, ship shells and the like.

The fiber reinforced plastic pipe (hereinafter referred to as glass fiber reinforced plastic) needs to be jointed with an aluminum piece due to process reasons, the traditional process is manual gluing, the efficiency is low, the environment is not protected, the appearance is uneven, and many manufacturers try a pressing mode.

Disclosure of Invention

The invention aims to overcome the defects of the traditional technology and provides a high-speed pressing device for a fiber reinforced plastic pipe and an aluminum material.

The aim of the invention is achieved by the following technical measures: the utility model provides a high-speed compression fittings of fibre reinforced plastic pipe and aluminum product, includes the frame, be equipped with the withholding device in the frame, the withholding device is including withholding the hydro-cylinder, be equipped with the withholding mould of placing pressfitting tubular product in the withholding hydro-cylinder, the withholding device still includes tubular product setting device, its characterized in that: the pipe shaping device comprises a buckling oil cylinder, a buckling mould and a pipe shaping device, wherein the buckling oil cylinder, the buckling mould and the pipe shaping device are coaxially arranged, the buckling oil cylinder comprises a hollow cylinder body, a piston capable of moving up and down is arranged in the cylinder body, a boss is arranged on the inner wall of the cylinder body in a radially extending mode, the piston comprises a piston body, a platform is arranged above the piston body, the platform radially extends to the inner wall of the cylinder body, a small piston is arranged below the piston body, and a first oil cavity is formed by the outer wall of the piston body, the small piston, the inner wall of the cylinder body and the boss; the inner wall of the cylinder body, the platform, the outer wall of the piston body and the boss form a second oil chamber.

As an improvement, the piston is hollow inside, the piston is arranged inside and matched with the buckling and pressing die, an end cover which is hollow inside is further arranged at the top end of the cylinder body, and the diameter of the end cover is gradually reduced from bottom to top.

As a further improvement, the interior of the piston is divided into a first cavity and a second cavity, the first cavity is a circular truncated cone cavity with the diameter gradually decreasing from top to bottom, and the diameter of the second cavity is the same as that of the small end of the first cavity.

As a further improvement, the crimping die comprises a die seat arranged in the first cavity, a die block arranged in the die seat in a matched mode is arranged in the die seat, and the inner side wall of the end cover is matched with the outer peripheral wall of the die seat.

As a further improvement, the outer wall below the mold base is obliquely arranged, the inclined plane is matched with the inclination of the second cavity, the outer wall above the mold base is also obliquely arranged, the inclined plane is matched with the inclination of the inner side wall of the end cover, the mold base is hollow, the top end of the mold base is provided with a groove, a mold block is arranged in the mold base in a matched mode, and the top end of the mold block is provided with an extension table matched with the groove.

As a further improvement, the mold blocks comprise a plurality of first mold blocks and second mold blocks arranged on the inner sides of the first mold blocks, each first mold block is correspondingly provided with the second mold block, and the diameter formed by the second mold blocks is smaller than that formed by the first mold blocks.

As a further improvement, the tube shaping device comprises a core-pulling oil cylinder and a core-pulling shaft in power connection with the core-pulling oil cylinder, wherein a placing table is sleeved on a free end of the core-pulling shaft, and the top end of the placing table radially extends into the mold block.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that:

firstly, the method comprises the following steps: the arrangement of the buckling oil cylinder and the buckling mould realizes buckling action by mechanical conversion of oil pressure, realizes uniform stress on a buckling workpiece, prevents the buckling workpiece from being damaged, and realizes perfect pressing of an aluminum part and glass fiber reinforced plastic;

secondly, the method comprises the following steps: the setting device of the pipe is positioned in the middle of the buckling workpiece so as to prevent the buckling workpiece from deforming and damaging in the buckling process;

thirdly, the method comprises the following steps: the qualification rate of the pressed product produced by the invention reaches 99%, the product is stable and reliable, and the production cost is saved;

fourthly: the production speed of the invention is 10 s/piece, which is far higher than the efficiency of using glue for 3 minutes and 1 piece by the traditional method, thus saving manpower and material resources;

fifth, the method comprises the following steps: the appearance of the pressed workpiece is uniform and attractive;

sixth: the production process is environment-friendly and clean, and no waste is generated.

The invention is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the crimping apparatus of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural diagram of the pipe shaping device according to the present invention;

FIG. 5 is a perspective view of FIG. 2;

FIG. 6 is a schematic structural view of the die holder of the present invention;

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a schematic structural view of a mold block according to the present invention;

fig. 9 is a schematic structural diagram of the first mold block and the second mold block of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b): as shown in fig. 1-9, a high-speed press-fitting device for fiber reinforced plastic pipes and aluminum materials comprises a frame 1, wherein a press-fitting device 2 is arranged on the frame 1, the press-fitting device 2 comprises a press-fitting cylinder 21, a press-fitting mold 22 for placing press-fitting pipes (workpieces 3 to be pressed) is arranged in the press-fitting cylinder 21, the press-fitting device 2 further comprises a pipe shaping device 23, and the press-fitting cylinder 21, the press-fitting mold 22 and the pipe shaping device 23 are coaxially arranged.

The withholding oil cylinder 21 comprises a hollow cylinder body 211, and a boss 212 extends radially on the inner wall of the cylinder body 211. A piston 213 capable of moving up and down is arranged in the cylinder body 211, the piston 213 is hollow, the buckling and pressing mold 22 matched with the piston 213 is arranged in the piston 213, an end cover 214 with a hollow inner part is further arranged at the top end of the cylinder body 211, and the diameter of the inner part of the end cover 214 is gradually reduced from bottom to top; the end cap 214 is configured to prevent axial ejection of the crimping die 22 in addition to imparting radial force to the crimping die 22.

The piston 213 comprises a piston body 213a with a hollow interior, a platform 213b is arranged above the piston body 213a, the platform 213b radially extends to the inner wall of the cylinder body 211, a small piston 213c is arranged below the piston body 213a, a first oil chamber 214 is formed by the outer wall of the piston body 213a, the small piston 213c, the inner wall of the cylinder body 211 and the boss 212, a second oil chamber 215 is formed by the inner wall of the cylinder body 211, the platform 213b, the outer wall of the piston body 213a and the boss 212, and when oil is injected into the first oil chamber 214, the small piston 213c is subjected to a thrust action and then drives the piston body 213a to move downwards together, thereby completing the opening action of the buckling and pressing mold 22; when the second oil chamber 215 is filled with oil, the piston body 213a is pushed upward, thereby completing the contraction of the crimping die 22.

The hollow portion of the piston 213 is divided into a first cavity 213d and a second cavity 213e, the first cavity 213d is a circular truncated cone cavity with a diameter gradually decreasing from top to bottom, and the diameter of the second cavity 213e is the same as the diameter of the small end of the first cavity 213 d.

The crimping die 22 includes a die holder 221 disposed in the first cavity 213d, a die block 222 disposed in the die holder 221 in a matching manner, and an inner sidewall of the end cap 214 and an outer peripheral wall of the die holder 221 are disposed in a matching manner.

The outer wall 221a below the mold base 221 is arranged obliquely, the outer wall 221b above the mold base 221 is also arranged obliquely, the inclined surface is matched with the inclination of the inner side wall of the end cover 214, and the mold base 221 is arranged obliquely and moves upwards under the action of thrust force, so that the first mold block 222a and the second mold block 222b matched with the mold base 221 are driven to move inwards to achieve the effect of shrinkage; the die holder 221 is hollow, a groove 223 is formed in the top end of the die holder 221, a die block 222 is arranged in the die holder 221 in a matched mode, and an extension table 224 matched with the groove 223 is arranged at the top end of the die block 222.

The mold blocks 222 comprise a plurality of first mold blocks 222a, a gap is arranged between each first mold block 222a, the plurality of first mold blocks 222a form a complete ring, the gap 222c is arranged to enable the first mold blocks 222a to move inwards and reduce the diameter of the formed ring, and a second mold block 222b is arranged on the inner side of each first mold block 222a, each first mold block 222a is correspondingly provided with the second mold block 222b, and the diameter formed by the second mold blocks 222b is smaller than the diameter formed by the first mold blocks 222 a; a gap 222c is formed between each second mold block 222b, a plurality of second mold blocks 222b form a complete ring, and the arrangement of the gap can enable the second mold blocks 222b to move inwards and reduce the diameter of the formed ring; the middle space portion 222d formed by the second mold blocks 222b is a space for placing the pipes to be pressed.

The pipe shaping device 23 comprises a core-pulling oil cylinder 231 and a core-pulling shaft 232 in power connection with the core-pulling oil cylinder 231, a placing table 233 is sleeved on a free end of the core-pulling shaft 232, the top end of the placing table 233 radially extends into the die block 222, and the setting of the core-pulling shaft 232 enables the

buckling workpieces

31 and 32 to be stressed uniformly, so that the

buckling workpieces

31 and 32 are prevented from being deformed and damaged in the buckling process.

The movement process of the invention is as follows:

firstly, starting the machine, the core pulling cylinder 231 moves to drive the core pulling shaft 232 to move upwards to enter a standby state, the workpiece 3 to be buckled is sleeved on the core pulling shaft 232 and placed on the placing table 233, then the working button is manually started, the second oil cavity 215 is filled with oil, the piston body 213a moves upwards under the action of thrust, so that the buckling and pressing of the buckling and pressing mold 22 is completed, when a set pressure value is reached, the first oil cavity 214 is filled with oil, the small piston 213c is under the action of thrust, and then the piston body 213a is driven to move downwards together, so that the opening of the buckling and pressing mold 22 is completed, the buckled workpiece 3 is loosened, then the core pulling cylinder 231 acts, the core pulling shaft 232 is pulled out, and the buckled workpiece 3 is taken out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a high-speed compression fittings of fibre reinforced plastic pipe and aluminum product, includes the frame, be equipped with the withholding device in the frame, the withholding device is including withholding the hydro-cylinder, be equipped with the withholding mould of placing pressfitting tubular product in the withholding hydro-cylinder, the withholding device still includes tubular product setting device, its characterized in that: the pipe shaping device comprises a buckling oil cylinder, a buckling mould and a pipe shaping device, wherein the buckling oil cylinder, the buckling mould and the pipe shaping device are coaxially arranged, the buckling oil cylinder comprises a hollow cylinder body, a piston capable of moving up and down is arranged in the cylinder body, a boss is arranged on the inner wall of the cylinder body in a radially extending mode, the piston comprises a piston body, a platform is arranged above the piston body, the platform radially extends to the inner wall of the cylinder body, a small piston is arranged below the piston body, and a first oil cavity is formed by the outer wall of the piston body, the small piston, the inner wall of the cylinder body and the boss; the inner wall of the cylinder body, the platform, the outer wall of the piston body and the boss form a second oil chamber.

2. A high speed press-fitting apparatus of fiber reinforced plastic pipe and aluminum material as claimed in claim 1, wherein: the piston is hollow inside, the piston is arranged inside and matched with the buckling and pressing die, an end cover which is hollow inside is further arranged at the top end of the cylinder body, and the diameter of the end cover is gradually reduced from bottom to top.

3. A high speed press-fitting apparatus of fiber reinforced plastic pipe and aluminum material as claimed in claim 2, wherein: the piston is internally divided into a first cavity and a second cavity, the first cavity is a circular truncated cone cavity with the diameter gradually decreasing from top to bottom, and the diameter of the second cavity is the same as that of the small end of the first cavity.

4. A high speed press-fitting apparatus of fiber reinforced plastic pipe and aluminum material as claimed in claim 3, wherein: the buckling and pressing die comprises a die seat arranged in the first cavity, a die block arranged in the die seat in a matched mode, and the inner side wall of the end cover is matched with the outer peripheral wall of the die seat.

5. A high-speed laminating device of fiber reinforced plastic pipe and aluminum material according to claim 4, wherein: the outer wall of mould seat below sets up in the slope, and the inclined plane with the gradient of second cavity is identical, the outer wall of mould seat top also sets up in the slope, and the inclined plane with the gradient of end cover inside wall is identical, cavity in the mould seat, and the top is equipped with the recess, the mould seat fit in is equipped with the mould piece, the top of mould piece be equipped with recess complex extension platform.

6. A high-speed laminating device of fiber reinforced plastic pipe and aluminum material according to claim 5, wherein: the mould piece includes a plurality of first mould pieces, sets up the inboard second mould piece of first mould piece, every first mould piece corresponds and is provided with the second mould piece, the diameter that the second mould piece is constituteed is less than the diameter that first mould piece is constituteed.

7. A high-speed laminating device of fiber reinforced plastic pipe and aluminum material according to claim 5, wherein: the pipe shaping device comprises a core-pulling oil cylinder and a core-pulling shaft in power connection with the core-pulling oil cylinder, a placing table is sleeved on the free end of the core-pulling shaft, and the top end of the placing table radially extends into the die block.