阅读说明：本技术 一种金属管材加工用拉伸矫直装置 (Metal tubular product processing is with tensile straightener ) 是由 文洪莉 石磊 于 2020-09-03 设计创作，主要内容包括：本发明公开了一种金属管材加工用拉伸矫直装置,涉及管材加工技术领域。本发明包括支撑板,支撑板两端均滑动配合有拉伸架；支撑板一端固定有第一气缸；第一气缸端部与其中一拉伸架固定连接；另一拉伸架底部侧面铰接有挂架；挂架一端支撑板相互挂接；支撑板表面滑动配合有两个移动框架；移动框架内侧滑动配合有托架；托架顶端转动连接有与移动框架顶部螺纹配合的调节螺杆。本发明通过两个移动框架在调节螺杆的作用下使得托架呈升降式滑动,可对弯曲金属管两端与两个拉伸架对齐,便于拉伸架对弯曲金属管直接进行固定,并从金属管内侧向外膨胀式夹持固定,避免金属管出现端头夹扁的情况,且可对不同口径大小的金属管进行夹持,通用性较强。(The invention discloses a stretching and straightening device for processing a metal pipe, and relates to the technical field of pipe processing. The invention comprises a supporting plate, wherein both ends of the supporting plate are in sliding fit with stretching frames; a first cylinder is fixed at one end of the supporting plate; the end part of the first cylinder is fixedly connected with one stretching frame; the side surface of the bottom of the other stretching frame is hinged with a hanging frame; supporting plates at one end of the hanging rack are mutually hung; the surface of the supporting plate is in sliding fit with two moving frames; a bracket is in sliding fit with the inner side of the movable frame; the top end of the bracket is rotationally connected with an adjusting screw rod matched with the thread at the top of the movable frame. According to the invention, the bracket slides in a lifting manner under the action of the adjusting screw rod through the two movable frames, so that two ends of the bent metal tube can be aligned with the two stretching frames, the stretching frames can directly fix the bent metal tube conveniently, and the bent metal tube can be clamped and fixed in an outward expansion manner from the inner side of the metal tube, the condition that the end of the metal tube is flat is avoided, the metal tubes with different calibers can be clamped, and the universality is strong.)

1. The utility model provides a metal pipe processing is with tensile straightener, includes backup pad (1), its characterized in that:

both ends of the supporting plate (1) are in sliding fit with stretching frames (2); a first cylinder (3) is fixed at one end of the support plate (1); the end part of a piston rod of the first cylinder (3) is fixedly connected with one stretching frame (2); the side surface of the bottom of the other stretching frame (2) is hinged with a hanging frame (4); limiting rods (101) are arranged on the surface of one end of the supporting plate (1) in a linear array mode; one end of the hanging rack (4) far away from the stretching rack (2) is mutually hung with one limiting rod (101);

two moving frames (5) are arranged on the surface of the supporting plate (1) and positioned between the two stretching frames (2) in a sliding fit manner; a bracket (6) is in sliding fit with the inner side of the moving frame (5); the top end of the bracket (6) is rotatably connected with an adjusting screw rod (7); the adjusting screw (7) is in threaded fit with the top of the movable frame (5);

the stretching frame (2) is of an inverted U-shaped structure; a connecting plate (201) is fixed on the inner side of the stretching frame (2); a second cylinder (202) is fixed on one surface of the connecting plate (201); the end part of a piston rod of the second cylinder (202) penetrates through the connecting plate (201), and the end part is fixedly connected with a pull rod (203); two first sliding grooves (204) are formed in the connecting plate (201) far away from one surface of the second cylinder (202) and located on the outer side of the pull rod (203); the connecting plate (201) is in sliding fit with two clamping plates (205) through a first sliding groove (204); a plurality of connecting rods (206) are hinged between the opposite surfaces of the two clamping plates (205); the other ends of the connecting rods (206) are hinged with the side surface of the pull rod (203).

2. The stretching straightener for processing metal pipes as claimed in claim 1, wherein the support plate (1) is provided with second chutes (102) on both end surfaces thereof, which are in sliding fit with the stretching frame (2); a third sliding groove (103) is formed in the surface of the supporting plate (1) and positioned between the two second sliding grooves (102); bolt holes (104) are formed in the surface of the supporting plate (1) and are located on the two sides of the third sliding groove (103) in a linear array mode.

3. The stretching straightener for processing metal pipes according to claim 2, characterized in that the bottom end of the moving frame (5) is provided with a first slide block (501) which is matched with the third chute (103); both sides of the bottom end of the movable frame (5) are provided with extension plates (502); spring bolts (503) which are mutually clamped with the bolt holes (104) are arranged on the surfaces of the two extension plates (502); both sides of the interior of the movable frame (5) are provided with fourth sliding chutes (504); the top of the movable frame (5) is provided with a threaded hole (505) matched with the adjusting screw rod (7).

4. The stretch-straightening device for processing the metal pipe according to the claim 3, characterized in that the bottom of the bracket (6) is of an arc structure; two sides of the bracket (6) are respectively provided with a second sliding block (601) matched with the fourth sliding groove (504); and the top of the bracket (6) is provided with a connector (602) which is rotationally connected with the end part of the adjusting screw rod (7).

5. The stretching straightener for processing metal pipes as claimed in claim 1, wherein one end of the draw bar (203) is provided with a mounting plate (2031) connected with the end of the piston rod of the second cylinder (202); and the linear arrays on the two sides of the pull rod (203) are respectively provided with a first hinged support (2032) matched with the connecting rod (206).

6. The stretch-straightening device for processing metal pipes according to claim 1, wherein the clamping plates (205) are of an arc-shaped structure; a third slide block (2051) matched with the first slide groove (204) is fixed at one end of the clamping plate (205); the linear arrays on the inner side of the clamping plate (205) are provided with second hinged supports (2052) matched with the connecting rods (206); the linear arrays of the peripheral side surface of the clamping plate (205) are provided with anti-skid convex strips (2053).

7. The stretching and straightening device for processing the metal pipe as claimed in claim 1, wherein both sides of one end of the hanging rack (4) are provided with connecting rings (401) matched with the stretching rack (2); and hooks (402) matched with the limiting rods (101) are arranged on two sides of one end, far away from the connecting ring (401), of the hanging rack (4).

Technical Field

The invention belongs to the technical field of pipe processing, and particularly relates to a stretching and straightening device for processing a metal pipe.

Background

Metal pipes, also called steel pipes, are used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, and are also economical steels. The development of chemical industry, drilling, production and transportation of petroleum and natural gas and the like strongly promote the development of steel pipe industry in variety, yield and quality. Steel pipes can be divided into two main categories according to production methods: the seamless steel pipe and the seamed steel pipe can be used for liquid air pressure pipelines, gas pipelines, water pipelines, gas pipelines, heating pipelines, electric appliance pipelines and the like in various industries.

Chinese patent CN204700089U (application No. CN 201520409486.4) discloses a hydraulic stretching straightener suitable for large-size aluminum pipes, in which, in the embodiment, a large-size aluminum pipe is fed from the end of a moving trolley and is clamped and fixed by V-shaped jaws of a clamping mechanism and a stretching head respectively, the moving trolley 1 can slide on a first I-steel frame and a second I-steel frame, a moving beam can slide on a support under the action of a first stretching oil cylinder and a second stretching oil cylinder, the first I-steel frame and the second I-steel frame can slide on a sliding shoe device under the action of the first stretching oil cylinder and the second stretching oil cylinder, the first stretching oil cylinder and the second stretching oil cylinder are driven and controlled to ensure that the clamping mechanism and the stretching head clamp two ends of the large-size aluminum pipe according to the length of the large-size aluminum pipe, the moving trolley is fixed on the first I-steel frame and the second I-steel frame by inserting bolts on pin holes of a double-bolt mechanism, the rotating device drives the stretching head to clamp the large-size aluminum pipe to rotate within +/-45 degrees, so that stretching and straightening operation of the large-size aluminum pipe is achieved, the bent aluminum pipe pushed by the mobile trolley cannot be directly clamped and fixed at two ends of the bent pipe through the clamping mechanism and the stretching head due to the fact that the aluminum pipe is in a bent state during stretching and straightening operation, the bent aluminum pipe is fixed in a clamping mode, the end of the aluminum pipe is flattened in the stretching and straightening process, and the requirement for practical use cannot be met.

Disclosure of Invention

The invention aims to provide a stretching and straightening device for processing a metal pipe, which solves the problems that the existing metal pipe stretching and straightening device is inconvenient to fix and clamp and the end of a metal pipe is easy to be flattened by matching a supporting plate, a stretching frame, a first air cylinder, a hanging frame, a moving frame, a bracket and an adjusting screw rod.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a stretching and straightening device for processing a metal pipe, which comprises a supporting plate,

both ends of the supporting plate are in sliding fit with stretching frames; a first cylinder is fixed at one end of the supporting plate; the end part of the first cylinder piston rod is fixedly connected with one stretching frame; the side surface of the bottom of the other stretching frame is hinged with a hanging frame; limiting rods are arranged on the surface of one end of each supporting plate in a linear array mode; one end of the hanging rack, which is far away from the stretching rack, is mutually hung and connected with one limiting rod;

two moving frames are in sliding fit with the surfaces of the supporting plates and positioned between the two stretching frames; a bracket is in sliding fit with the inner side of the moving frame; the top end of the bracket is rotatably connected with an adjusting screw rod; the adjusting screw is in threaded fit with the top of the movable frame;

the stretching frame is of an inverted U-shaped structure; a connecting plate is fixed on the inner side of the stretching frame; a second cylinder is fixed on one surface of the connecting plate; the end part of the piston rod of the second cylinder penetrates through the connecting plate, and the end part of the piston rod of the second cylinder is fixedly connected with a pull rod; two first sliding grooves are formed in the connecting plate, which is far away from one surface of the second cylinder and is positioned on the outer side of the pull rod; the connecting plate is in sliding fit with two clamping plates through a first sliding groove; a plurality of connecting rods are hinged between the opposite surfaces of the two clamping plates; the other ends of the connecting rods are hinged with the side surface of the pull rod.

Furthermore, the surfaces of two ends of the supporting plate are respectively provided with a second sliding chute which is mutually matched with the stretching frame in a sliding way; a third sliding groove is formed in the surface of the supporting plate and located between the two second sliding grooves; bolt holes are formed in the surface of the supporting plate and located in linear arrays on two sides of the third sliding groove.

Furthermore, a first sliding block matched with the third sliding groove is arranged at the bottom end of the movable frame; extension plates are arranged on two sides of the bottom end of the movable frame; spring bolts clamped with the bolt holes are arranged on the surfaces of the two extending plates; both sides of the interior of the movable frame are provided with fourth sliding chutes; and the top of the movable frame is provided with a threaded hole matched with the adjusting screw rod.

Further, the bottom of the bracket is of an arc-shaped structure; the two sides of the bracket are provided with second sliding blocks matched with the fourth sliding grooves; and the top of the bracket is provided with a connector which is mutually rotationally connected with the end part of the adjusting screw rod.

Furthermore, one end of the pull rod is provided with a mounting plate which is connected with the end part of the second cylinder piston rod; and the linear arrays on the two sides of the pull rod are respectively provided with a first hinged support matched with the connecting rod.

Further, the clamping plate is of an arc-shaped structure; a third sliding block matched with the first sliding groove is fixed at one end of the clamping plate; the linear arrays on the inner sides of the clamping plates are provided with second hinged supports matched with the connecting rods; the linear array of splint periphery side all is equipped with anti-skidding sand grip.

Furthermore, both sides of one end of the hanging rack are provided with connecting rings matched with the stretching rack; and hooks matched with the limiting rods are arranged on two sides of one end, far away from the connecting ring, of the hanging rack.

The invention has the following beneficial effects:

1. according to the invention, through the matching use of the supporting plate, the stretching frame, the first air cylinder, the hanging frame, the moving frames, the bracket and the adjusting screw, the two moving frames enable the bracket to slide in a lifting manner under the action of the adjusting screw, so that two ends of the bent metal pipe can be aligned with the two stretching frames, the stretching frame can directly fix the bent metal pipe conveniently, the work efficiency of stretching and straightening the metal pipe is improved, the metal pipes with different lengths can be aligned and adjusted, and the universality is stronger.

2. The connecting rod is driven by the pull rod to move under the action of the second cylinder, so that the two clamping plates slide along the connecting plate and are fixed in an outward expansion mode from the inner side of the metal pipe, the situation that the end of the metal pipe is clamped flat when the metal pipe is clamped and fixed is avoided, the metal pipes with different calibers can be clamped, and the actual use requirement is met.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a stretch straightening device for processing a metal pipe according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic cross-sectional view of the stretching frame;

FIG. 4 is a schematic structural view of the tie rod;

FIG. 5 is a schematic view of the splint;

FIG. 6 is a schematic structural view of a hanger;

FIG. 7 is a schematic structural view of a moving frame;

FIG. 8 is a schematic view showing a connection structure of a bracket and an adjusting screw

In the drawings, the components represented by the respective reference numerals are listed below:

1-support plate, 2-stretching frame, 3-first air cylinder, 4-hanging frame, 5-moving frame, 6-bracket, 7-adjusting screw rod, 101-limiting rod, 102-second sliding groove, 103-third sliding groove, 104-bolt hole, 201-connecting plate, 202-second air cylinder, 203-pull rod, 204-first sliding groove, 205-clamping plate, 206-connecting rod, 2031-mounting plate, 2032-first hinged support, 2051-third sliding block, 2052-second hinged support, 2053-anti-slip raised line, 401-connecting ring, 402-hook, 501-first sliding block, 502-extending plate, 503-spring bolt, 504-fourth sliding groove, 505-threaded hole, 601-second sliding block and 602-connecting head.

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.

Referring to fig. 1-8, the present invention is a stretching straightener for metal pipe processing, comprising a support plate 1,

both ends of the supporting plate 1 are matched with the stretching frames 2 in a sliding way; a first cylinder 3 is fixed at one end of the supporting plate 1; the end part of a piston rod of the first cylinder 3 is fixedly connected with one stretching frame 2; the side surface of the bottom of the other stretching frame 2 is hinged with a hanging frame 4; limiting rods 101 are arranged on the surface of one end of the supporting plate 1 in a linear array mode; one end of the hanging frame 4 far away from the stretching frame 2 is connected with one of the limiting rods 101 in a hanging manner;

two moving frames 5 are in sliding fit with the surface of the supporting plate 1 and positioned between the two stretching frames 2; a bracket 6 is in sliding fit with the inner side of the moving frame 5; the top end of the bracket 6 is rotatably connected with an adjusting screw 7; the adjusting screw 7 is in threaded fit with the top of the movable frame 5;

the stretching frame 2 is of an inverted U-shaped structure; a connecting plate 201 is fixed on the inner side of the stretching frame 2; a second cylinder 202 is fixed on one surface of the connecting plate 201; the end part of the piston rod of the second cylinder 202 penetrates through the connecting plate 201 and is fixedly connected with a pull rod 203; two first sliding grooves 204 are formed in the connecting plate 201, which is far away from one surface of the second cylinder 202 and is positioned on the outer side of the pull rod 203; the connecting plate 201 is slidably fitted with two clamping plates 205 through a first sliding groove 204; a plurality of connecting rods 206 are hinged between the opposite surfaces of the two clamping plates 205; the other ends of the connecting rods 206 are hinged with the side surface of the pull rod 203.

Wherein, the surfaces of the two ends of the supporting plate 1 are both provided with second sliding chutes 102 which are mutually matched with the stretching frames 2 in a sliding way; a third sliding groove 103 is formed on the surface of the supporting plate 1 and between the two second sliding grooves 102; the surface of the support plate 1 and the linear arrays on both sides of the third sliding groove 103 are all provided with bolt holes 104.

Wherein, the bottom end of the movable frame 5 is provided with a first slide block 501 matched with the third slide groove 103; extension plates 502 are arranged on two sides of the bottom end of the movable frame 5; the surfaces of the two extension plates 502 are respectively provided with a spring bolt 503 which is mutually clamped with the bolt hole 104; both sides of the interior of the moving frame 5 are provided with fourth sliding chutes 504; the top of the movable frame 5 is provided with a threaded hole 505 matched with the adjusting screw 7.

Wherein, the bottom of the bracket 6 is of an arc structure; two sides of the bracket 6 are provided with second sliding blocks 601 matched with the fourth sliding grooves 504; the top of the bracket 6 is provided with a connector 602 which is rotationally connected with the end of the adjusting screw 7.

Wherein, one end of the pull rod 203 is provided with a mounting plate 2031 which is connected with the end part of the piston rod of the second cylinder 202; the linear arrays on both sides of the pull rod 203 are provided with first hinge bases 2032 matched with the connecting rods 206.

Wherein, the clamping plate 205 is an arc-shaped structure; a third slide block 2051 matched with the first slide groove 204 is fixed at one end of the clamping plate 205; the linear arrays on the inner side of the clamping plate 205 are provided with second hinged supports 2052 matched with the connecting rods 206; the linear arrays on the peripheral side of the clamping plate 205 are all provided with anti-skid convex strips 2053.

Wherein, both sides of one end of the hanging rack 4 are provided with connecting rings 401 matched with the stretching rack 2; the two sides of one end of the hanging rack 4 far away from the connecting ring 401 are both provided with hooks 402 matched with the limiting rods 101.

One specific application of this embodiment is: when in use, the two moving frames 5 are in sliding fit with the third sliding chute 103 through the first sliding block 501 for adjusting the distance, and are clamped with the bolt holes 104 at the two sides of the third sliding chute 103 under the action of the spring bolt 503 on the surface of the extending plate 502 for fixing the positions of the two moving frames 5, the two ends of the metal bent pipe are respectively inserted into the brackets 6 at the inner sides of the two moving frames 5, the two brackets 6 drive the metal bent pipe to move up and down by rotating the adjusting screw 7, so that the two ends of the metal bent pipe are aligned with the pull rods 203 of the two stretching frames 2, the stretching frame 2 at one end of the first cylinder 3 drives the pull rod 203 to be inserted into one end of the metal bent pipe through the first cylinder 3, the other stretching frame 2 directly slides to enable the pull rod 203 to be inserted into the other end of the metal bent pipe and to be mutually limited and hooked with one limiting rod 101 under the action of the hanging frame 4, and under the action of the second, make pull rod 203 drive connecting rod 206 and remove, because the third slider 2051 of two splint 205 tip and the first spout 204 mutual slip of connecting plate 201 surface are spacing, make two splint 205 slide along first spout 204 and fixed with the mutual centre gripping of metal return bend both ends inner wall, avoid the metal pipe to appear the condition that the end presss from both sides flat when the centre gripping is fixed, and drive tensile frame 2 through the contraction of first cylinder 3 and remove, another tensile frame 2 is with backup pad 1 reciprocal anchorage under the effect of stores pylon 4, thereby stretch the straightening to crooked steel pipe, can stretch the straightening to the metal pipe of different bore sizes, and the commonality is stronger, and the needs of practical use have been satisfied.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.