CN111804768B - A tensile straightening device for metal pipe processing - Google Patents

Abstract

The invention discloses a stretching straightening device for metal pipe processing, which relates to the technical field of pipe processing. The invention includes a support plate, two ends of the support plate are slidingly fitted with a stretching frame; one end of the supporting plate is fixed with a first cylinder; the end of the first cylinder is fixedly connected with one of the stretching frames; The support plates at one end of the hanger are mutually connected; the surface of the support plates is slidingly matched with two moving frames; the inner side of the moving frames is slidingly matched with a bracket; The invention makes the bracket slide up and down under the action of the adjusting screw by the two moving frames, and can align the two ends of the curved metal pipe with the two stretching frames, so that the stretching frame can directly fix the curved metal pipe and remove the The inner side of the metal pipe is clamped and fixed outwardly to avoid the flattening of the end of the metal pipe, and it can clamp the metal pipes of different diameters, which has strong versatility.

Description

A tensile straightening device for metal pipe processing

technical field

The invention belongs to the technical field of pipe material processing, and in particular relates to a drawing and straightening device for metal pipe material processing.

Background technique

Metal pipes, also known as steel pipes, are used to transport fluids and powdered solids, exchange heat energy, manufacture mechanical parts and containers, and are also an economical steel. The development of the chemical industry and the drilling, production and transportation of oil and natural gas have strongly promoted the development of the steel pipe industry in terms of variety, output and quality. Steel pipes can be divided into two categories according to the production method: seamless steel pipes and seamed steel pipes, which can be used for liquid pressure pipes, gas pipes, water pipes, gas pipes, heating pipes, electrical pipes, etc. in various industries.

Chinese patent CN204700089U (application number: CN201520409486.4) discloses "a hydraulic drawing and straightening machine suitable for large-sized aluminum pipes", in its embodiment, large-sized aluminum pipes are fed from the end of the mobile trolley, and are respectively driven by The clamping mechanism and the V-shaped jaws of the stretching head are clamped and fixed, the mobile trolley 1 can slide on the first I-beam frame and the second I-beam frame, and the moving beam is on the first stretching cylinder and the second I-beam frame. The first I-beam frame and the second I-beam frame can slide on the sliding shoe device under the action of the first stretching cylinder and the second stretching cylinder, according to the The length of the large-size aluminum pipe is driven and controlled by the first stretching cylinder and the second stretching cylinder to ensure that the clamping mechanism and the stretching head clamp both ends of the large-size aluminum pipe. On the first I-beam frame and the second I-beam frame, the rotating device drives the drawing head to clamp the large-sized aluminum pipe and rotate at an angle of ±45° to realize the drawing and straightening operation of the large-sized aluminum pipe. Since the aluminum tube is in a bent state during the stretching and straightening work, the bent aluminum tube pushed by the mobile trolley cannot be directly clamped and fixed by the clamping mechanism and the stretching head, and the bent aluminum tube is clamped and fixed. Tightly fixed, it is easy to make the aluminum tube end flattened in the process of stretching and straightening, which cannot meet the needs of actual use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a stretching and straightening device for metal pipe processing, which solves the problem of the existing The metal pipe stretching and straightening device is inconvenient to fix and hold, and the problem of flattening the end of the metal pipe is easy to occur.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions:

The invention relates to a drawing and straightening device for metal pipe processing, comprising a support plate,

Both ends of the support plate are slidably fitted with a stretching frame; one end of the supporting plate is fixed with a first cylinder; the end of the piston rod of the first cylinder is fixedly connected with one of the stretching frames; the other stretching frame A hanger is hinged on the side of the bottom; a limit rod is arranged on the surface of one end of the support plate in a linear array; one end of the hanger away from the stretching frame is mutually linked with one of the limit rods;

Two moving frames are slidably fitted on the surface of the support plate and located between the two stretching frames; a bracket is slidably fitted on the inner side of the moving frame; an adjusting screw is rotatably connected to the top of the bracket; the adjusting screw and the moving frame Top thread fit;

The stretching frame is 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 of the piston rod of the second cylinder penetrates the connecting plate and ends The connecting plate is fixedly connected with a pull rod; the connecting plate is far from a surface of the second cylinder and is located on the outside of the pull rod with two first sliding grooves; the connecting plate is slidably fitted with two clamping plates through the first sliding grooves; Several connecting rods are hinged between the surfaces; the other ends of the several connecting rods are hinged with the side surface of the tie rod.

Further, the surfaces of both ends of the support plate are provided with a second chute for sliding cooperation with the stretching frame; a third chute is opened on the surface of the support plate and located between the two second chute; the The surface of the support plate and the linear arrays located on both sides of the third chute are provided with pin holes.

Further, the bottom end of the moving frame is provided with a first sliding block matched with the third chute; both sides of the bottom end of the moving frame are provided with extension plates; the surfaces of the two extension plates are provided with bolt holes spring latches that are clamped to each other; fourth sliding grooves are opened on both sides of the inside of the moving frame; threaded holes matched with the adjusting screw are opened on the top of the moving frame.

Further, the bottom of the bracket is an arc structure; both sides of the bracket are provided with a second sliding block matched with the fourth chute; the top of the bracket is provided with a rotatable connection with the end of the adjusting screw connector.

Further, one end of the tie rod is provided with a mounting plate interconnected with the end of the piston rod of the second cylinder; the linear arrays on both sides of the tie rod are provided with a first hinge seat matched with the connecting rod.

Further, the splint has an arc-shaped structure; one end of the splint is fixed with a third sliding block matched with the first chute; the inner linear array of the splint is provided with a second hinge seat matched with the connecting rod; The linear arrays on the outer peripheral side of the splint are all provided with anti-skid protruding strips.

Further, both sides of one end of the hanger are provided with a connecting ring matched with the stretching frame; and two sides of one end of the hanger away from the connecting ring are provided with hooks matched with the limit rod.

The present invention has the following beneficial effects:

1. In the present invention, the support plate, the stretching frame, the first cylinder, the hanging frame, the moving frame, the bracket and the adjusting screw are used together. The two moving frames make the bracket slide up and down under the action of the adjusting screw, which can The two ends of the bent metal tube are aligned with the two stretching frames, which is convenient for the stretching frame to directly fix the bent metal tube, which improves the working efficiency of the stretching and straightening of the metal tube, and can adjust the alignment of the metal tubes of different lengths. , with strong generality.

2. In the present invention, the tie rod is used to move under the action of the second cylinder and drive the connecting rod to make the two splints slide along the connecting plate, and expand and fix from the inside of the metal tube to the outside, so as to avoid the occurrence of end clamps when the metal tube is clamped and fixed. It can also clamp metal pipes of different diameters, which meets the needs of practical use.

Of course, it is not necessary for any product embodying the present invention to achieve all of the above-described advantages simultaneously.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

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

Fig. 2 is an enlarged view at A in Fig. 1;

Fig. 3 is the sectional structure schematic diagram of the stretching frame;

Figure 4 is a schematic structural diagram of a pull rod;

Fig. 5 is the structural representation of splint;

Fig. 6 is the structural representation of the hanger;

Fig. 7 is the structural representation of mobile frame;

Figure 8 is a schematic diagram of the connection structure of the bracket and the adjusting screw

In the accompanying drawings, the list of components represented by each number is as follows:

1-support plate, 2-stretching frame, 3-first cylinder, 4-hanging frame, 5-moving frame, 6-bracket, 7-adjusting screw, 101-limiting rod, 102-second chute, 103-Third chute, 104-Bolt hole, 201-Connecting plate, 202-Second cylinder, 203-Tie rod, 204-First chute, 205-Clamp plate, 206-Connecting rod, 2031-Installation plate, 2032- 1st hinge seat, 2051-Third slider, 2052-Second hinge seat, 2053-Anti-slip protruding strip, 401-Connecting ring, 402-Hook, 501-First slider, 502-Extension plate, 503-Spring latch , 504 - the fourth chute, 505 - the threaded hole, 601 - the second slider, 602 - the connector.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1-8, the present invention is a stretch straightening device for metal pipe processing, comprising a support plate 1,

Both ends of the support plate 1 are slidably fitted with a stretching frame 2; one end of the supporting plate 1 is fixed with a first cylinder 3; the end of the piston rod of the first cylinder 3 is fixedly connected with one of the stretching frames 2; the bottom of the other stretching frame 2 A hanger 4 is hinged on the side; a limit rod 101 is provided on the surface of one end of the support plate 1 in a linear array; one end of the hanger 4 away from the stretch frame 2 is mutually linked with one of the limit rods 101 ;

Two moving frames 5 are slidably fitted on the surface of the support plate 1 and located between the two stretching frames 2; the inner side of the moving frame 5 is fitted with a bracket 6; the top of the bracket 6 is rotatably connected with an adjusting screw 7; 5 top thread fit;

The stretching frame 2 is 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; A pull rod 203 is fixedly connected; the connecting plate 201 is far from a surface of the second cylinder 202 and there are two first chute 204 on the outside of the pull rod 203; Several connecting rods 206 are hinged between the opposite surfaces of the 205;

Wherein, the surfaces of both ends of the support plate 1 are provided with a second chute 102 slidingly matched with the stretching frame 2; a third chute 103 is opened on the surface of the support plate 1 and located between the two second chute 102; On the surface of the board 1 and on both sides of the third chute 103 , the linear arrays are provided with latch holes 104 .

The bottom end of the moving frame 5 is provided with a first sliding block 501 matched with the third chute 103; the bottom end of the moving frame 5 is provided with extension plates 502 on both sides; There are spring pins 503 that are latched to each other; fourth sliding grooves 504 are opened on both sides of the interior of the moving frame 5 ;

The bottom of the bracket 6 is an arc structure; both sides of the bracket 6 are provided with second sliding blocks 601 matched with the fourth chute 504; Connector 602.

One end of the pull rod 203 is provided with a mounting plate 2031 interconnected with the end of the piston rod of the second cylinder 202 ;

Wherein, the splint 205 is an arc structure; one end of the splint 205 is fixed with a third sliding block 2051 matched with the first chute 204; the inner linear array of the splint 205 is provided with a second hinge seat 2052 matched with the connecting rod 206; The linear arrays on the outer peripheral side of the splint 205 are provided with anti-skid protruding strips 2053 .

One end of the hanger 4 is provided with a connecting ring 401 on both sides for matching with the stretching frame 2;

A specific application of this embodiment is: when in use, the distance between the two moving frames 5 is adjusted through the sliding fit of the first slider 501 and the third sliding groove 103 , and under the action of the spring latch 503 on the surface of the extension plate 502 , the two moving frames 5 are connected to the third sliding slot 103 . The latch holes 104 on both sides of the three sliding grooves 103 are mutually clamped to fix the positions of the two moving frames 5 . Insert the two ends of the metal elbow into the brackets 6 inside the two moving frames 5 respectively, and rotate the adjusting screw 7 , the two brackets 6 drive the metal elbow to move up and down, so that the two ends of the metal elbow are aligned with the tie rods 203 of the two stretching frames 2, and the stretching frame 2 at one end of the first cylinder 3 drives the tie rods through the first cylinder 3 203 is inserted into one end of the metal elbow, and the other stretching frame 2 slides directly so that the pull rod 203 is inserted into the other end of the metal elbow, and is connected to one of the limit rods 101 under the action of the hanger 4 to limit the position. Under the action of the second cylinder 202 fixed on the side of the connecting plate 201 on the inner side of the stretching frame 2, the pull rod 203 drives the connecting rod 206 to move. The sliding grooves 204 slide to limit each other, so that the two splints 205 slide along the first sliding groove 204 and are clamped and fixed with the inner walls of both ends of the metal elbow, so as to avoid the situation that the ends of the metal pipe are flattened when the metal pipe is clamped and fixed, and The stretching frame 2 is driven to move by the contraction of the first cylinder 3, and the other stretching frame 2 is fixed with the support plate 1 under the action of the hanger 4, so that the bending steel pipe can be stretched and straightened. The tube is stretched and straightened, which has strong versatility and meets the needs of practical use.

In the description of this specification, description with reference to the terms "one embodiment," "example," "specific example," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the present invention. in one embodiment or example. In this specification, schematic representations of the above terms 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 above-disclosed preferred embodiments of the present invention are provided only to help illustrate the present invention. The preferred embodiments do not exhaust all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the content of this specification. These embodiments are selected and described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is to be limited only by the claims and their full scope and equivalents.

Claims (4)

1. A stretch-straightening device for metal pipe processing, comprising a support plate (1), characterized in that: Both ends of the support plate (1) are slidably fitted with a stretching frame (2); one end of the support plate (1) is fixed with a first cylinder (3); the end of the piston rod of the first cylinder (3) is connected to the One of the stretching frames (2) is fixedly connected; the bottom side of the other stretching frame (2) is hinged with a hanger (4); one end surface of the support plate (1) is provided with limit rods (101) in a linear array on each end. ; one end of the hanger (4) away from the stretching frame (2) is mutually linked with one of the limit rods (101); Two moving frames (5) are slidably fitted on the surface of the support plate (1) and located between the two stretch frames (2); a bracket (6) is slidably fitted inside the moving frame (5); The top of the frame (6) is rotatably connected with an adjusting screw (7); the adjusting screw (7) is threadedly matched with the top of the moving frame (5); The stretching frame (2) is of an inverted "U" shape; 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 of the piston rod of the second cylinder (202) penetrates the connecting plate (201) and the end is fixedly connected with a pull rod (203); the connecting plate (201) is away from a surface of the second cylinder (202) and is located at the pull rod ( 203) Two first sliding grooves (204) are opened on the outside; the connecting plate (201) is slidably fitted with two clamping plates (205) through the first sliding grooves (204); Several connecting rods (206) are hinged between them; the other ends of the several connecting rods (206) are hinged with the side surface of the pulling rod (203); Both ends of the support plate (1) are provided with second chute (102) slidingly matched with the stretching frame (2); the surface of the support plate (1) is located in two second chute (102) A third chute (103) is opened between ); the surface of the support plate (1) and the linear array on both sides of the third chute (103) are provided with latch holes (104); The bottom end of the moving frame (5) is provided with a first sliding block (501) matched with the third chute (103); extension plates (502) are provided on both sides of the bottom end of the moving frame (5); The surfaces of the two extension plates (502) are provided with spring latches (503) that are mutually snapped with the latch holes (104); fourth sliding grooves (504) are provided on both sides of the interior of the moving frame (5); The top of the moving frame (5) is provided with a threaded hole (505) matched with the adjusting screw (7); The bottom of the bracket (6) is an arc structure; both sides of the bracket (6) are provided with second sliding blocks (601) matched with the fourth chute (504); the bracket (6) ) top is provided with a connecting head (602) rotatably connected with the end of the adjusting screw (7). 2 . The stretch-straightening device for metal pipe processing according to claim 1 , wherein one end of the tie rod ( 203 ) is provided with a mounting plate interconnected with the end of the piston rod of the second cylinder ( 202 ). 3 . (2031); the linear arrays on both sides of the tie rod (203) are provided with first hinge seats (2032) matched with the connecting rods (206). 3 . The stretch-straightening device for metal pipe processing according to claim 1 , wherein the splint ( 205 ) has an arc-shaped structure; one end of the splint ( 205 ) is fixed with the first chute (204) a matching third slider (2051); the inner linear array of the splint (205) is provided with a second hinge seat (2052) matched with the connecting rod (206); the splint (205) has an outer periphery The lateral linear arrays are provided with anti-skid rib (2053). 4 . The stretch-straightening device for metal pipe processing according to claim 1 , wherein the hanger ( 4 ) is provided with a connecting ring on both sides of one end that is matched with the stretch frame ( 2 ). 5 . (401); hooks (402) matched with the limiting rod (101) are provided on both sides of one end of the hanger (4) away from the connecting ring (401).

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