Transverse stretching device for metal pipe

Abstract

The utility model discloses a metal pipe transverse stretching device, and relates to the technical field of metal pipes, the metal pipe transverse stretching device comprises a bottom plate and a transfer assembly arranged on the bottom plate; a placing plate is arranged on the bottom plate, the transfer assembly comprises an air cylinder, a support slidably connected with the bottom plate is arranged at the output end of the air cylinder, the support is rotationally connected with a clamping wheel, and the support is provided with a driving motor for driving the clamping wheel to rotate; the pipe fitting is horizontally placed on the placing plate, the clamping wheels are arranged in groups, and each group of clamping wheels rotationally abut against the two sides of the pipe fitting to drive the pipe fitting to horizontally move away from the placing plate; the placing plate is arranged for placing the pipe fittings, so that the weight borne by manual holding is reduced, and the working intensity is reduced; the air cylinder is arranged to drive the supports to be close to each other, the clamping wheels clamp the two sides of the pipe fitting, and the driving motor is arranged to drive the clamping wheels to rotate to drive the pipe fitting to move horizontally. Manual hand-held pipe fitting conveying is avoided, and the pipe fitting stretching quality is improved by maintaining horizontal transmission of the pipe fittings.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal pipes, in particular to a metal pipe transverse stretching device. BACKGROUND

[0002] The metal pipe transverse stretching device is a mechanical equipment for processing metal pipes, which is usually used for manufacturing pipes and pipelines, and mainly functions to gradually lengthen, thin or change the shape of a metal pipe blank through a series of processes such as stretching, extruding, drawing and the like, so as to reach the required specifications and sizes; in the metal processing industry, drawing is a common process method for producing metal pipes of various diameters, wall thicknesses and lengths.

[0003] In the prior art, a worker holds a pipe and makes one end of the pipe processed and thinned to be previously passed through a stretching die, the thinned end of the pipe is clamped by a clamping mechanism, and then the clamping mechanism is moved by a driving mechanism to make the pipe pass through the stretching die, so that the pipe is stretched in diameter.

[0004] According to the related art, the inventors believe that when the length of part of the pipe is too long, the worker is difficult to maintain the pipe horizontal when holding the pipe to pass through the stretching die, which affects the clamping and stretching effect of the pipe, thereby reducing the stretching quality of the pipe. CONTENT OF THE INVENTION

[0005] The application aims to provide a metal pipe transverse stretching device to solve the problem that when the length of part of the pipe is too long, the worker is difficult to maintain the pipe horizontal when holding the pipe to pass through the stretching die, which affects the clamping and stretching effect of the pipe, thereby reducing the stretching quality of the pipe.

[0006] The application provides a metal pipe transverse stretching device, which adopts the following technical scheme:

[0007] The metal pipe transverse stretching device comprises a bottom plate, a transmission assembly arranged on the bottom plate, a placing plate arranged on the bottom plate, a cylinder, a support in sliding connection with the bottom plate arranged at the output end of the cylinder, a clamping wheel rotatably connected to the support, and a driving motor arranged on the support and configured to drive the clamping wheel to rotate; the pipe is horizontally placed on the placing plate, the clamping wheels are arranged in groups, and each group of clamping wheels is rotatably abutted to the two sides of the pipe to drive the pipe to move horizontally away from the placing plate.

[0008] By adopting the technical scheme, the pipe is placed on the placing plate, the weight borne by manual holding is reduced, and the working strength is reduced; the clamping wheel is rotationally connected to the support through the support, the support is driven to move closer to each other by the cylinder, the clamping wheel clamps the two sides of the pipe, the pipe is driven to move horizontally by the driving motor driving the clamping wheel to rotate, the worker manually holds and carries the pipe, the horizontal transmission of the pipe is maintained, and thus the pipe stretching quality is improved.

[0009] Optionally, the placing plate is provided with an arc-shaped groove for slidingly clamping the pipe.

[0010] By adopting the technical scheme, the pipe is stably placed on the placing plate through the arc-shaped groove, and the clamping effect is not affected by rolling of the pipe.

[0011] Optionally, the bottom plate is provided with a sliding groove, and the support is slidingly clamped with the sliding groove.

[0012] By adopting the technical scheme, the support and the bottom plate are slidingly clamped with the sliding groove, the friction between the support and the bottom plate is reduced, the cylinder drives the support to move to clamp the pipe, the support is more stably sliding, and the clamping stability and the transmission stability of the pipe are improved.

[0013] Optionally, the rotating surface of the clamping wheel is concave arc-shaped, and the clamping wheel is provided with a rubber ring.

[0014] By adopting the technical scheme, the clamping wheel with the concave arc-shaped rotating surface is convenient to adapt to the pipe, the rotating contact area is increased, the transmission efficiency is improved, the friction between the clamping wheel and the pipe is increased through the rubber ring, the pipe clamping transmission is more stable, and the pipe stretching quality is improved.

[0015] Optionally, the bottom plate is provided with a stretching die through which the pipe passes to be reduced in diameter and elongated.

[0016] By adopting the technical scheme, the pipe passing through the stretching die is reduced in diameter and elongated, so that the pipe is stretched.

[0017] Optionally, the stretching die is arranged on a stretching plate and corresponds to the pipe, and the bottom plate is provided with a group of fixed groove plates slidingly clamping the stretching plate.

[0018] By adopting the technical scheme, the fixed groove plates slidingly clamp the stretching plate, the stretching plate is convenient to install and dismount to replace the stretching die of different sizes, and the pipe is processed in multiple stages by cooperating with the stretching die of different sizes, so that the pipe can reach the ideal size.

[0019] Optionally, the bottom plate is provided with a sliding rail on the side away from the stretching plate, the sliding rail is slidingly provided with a sliding plate, and the bottom plate is provided with a driving member connected with the sliding plate to drive the sliding plate to slide away from the stretching plate.

[0020] By adopting the above technical scheme, the sliding rail is arranged to facilitate the movement of the sliding plate, the sliding plate is arranged to place the clamping mechanism, and the driving member is arranged to drive the sliding plate to move, so that the pipe can pass through the stretching die.

[0021] Optionally, the top surface of the sliding plate is provided with a clamping mechanism, the clamping mechanism includes a group of fixed inclined surface plates and two clamping plates matched with the inclined surfaces of the fixed inclined surface plates, the sliding plate is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is provided with a push block, and the two clamping plates slide along the inclined surfaces to approach each other under the action of the hydraulic cylinder driving the push block to move, until the one end of the pipe passing through the stretching die is stably clamped.

[0022] By adopting the above technical scheme, the clamping mechanism is arranged to clamp the one end of the pipe passing through the stretching die, the hydraulic cylinder is arranged to drive the clamping plates to approach each other under the guidance of the fixed inclined surface, so as to clamp and fix the pipe; the clamping mechanism can be adapted to pipes of different diameters, and the stable and powerful driving force of the hydraulic cylinder can stably fix the pipe and reduce the possibility of loosening of the pipe during stretching.

[0023] Optionally, the side of the two clamping plates approaching each other is provided with a groove, and the push block is provided with two synchronous members slidingly engaged in the corresponding grooves.

[0024] By adopting the above technical scheme, the synchronous members are slidingly engaged with the grooves to enable the two clamping plates to move synchronously, thereby improving the clamping stability; and when the hydraulic cylinder returns, the two clamping plates are pulled back synchronously, thereby facilitating the next clamping after the machining is completed.

[0025] In summary, the metal pipe transverse stretching device has the following beneficial technical effects:

[0026] 1. The pipe is placed on the placing plate, thereby reducing the weight borne by the worker and reducing the working intensity; the support is rotationally connected with the clamping wheel, the cylinder drives the support to approach each other, the clamping wheel clamps the two sides of the pipe, and the driving motor drives the clamping wheel to rotate and drive the pipe to horizontally move; the worker does not need to manually carry the pipe, the horizontal transmission of the pipe is maintained, and the pipe stretching quality is improved.

[0027] 2. The clamping wheel with a concave arc-shaped rotating surface can be adapted to the pipe, the rotating contact area is increased, and the transmission efficiency is improved; the rubber ring improves the friction between the clamping wheel and the pipe, the hanging member clamping transmission is more stable, and the pipe stretching quality is improved.

[0028] 3. By setting the clamping mechanism to clamp and fix one end of the pipe through the stretching die, and by setting the hydraulic cylinder to drive the clamping plates to move close to each other under the guidance of the fixed inclined surface, the two clamping plates clamp and fix the pipe; it is convenient to adapt to pipes of different diameters, and at the same time, the stable and powerful driving force of the hydraulic cylinder can stably fix the pipe and reduce the possibility of pipe stretching loosening. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the metal pipe transverse stretching device.

[0030] Figure 2 is Figure 1 is an enlarged schematic diagram of the structure at A in

[0031] Figure 3 is Figure 1 is an enlarged schematic diagram of the structure at B in

[0032] In the figure, 1 is a base plate, 2 is a transmission assembly, 21 is a cylinder, 22 is a bracket, 23 is a clamping wheel, 24 is a driving motor, 3 is a placing plate, 31 is an arc-shaped groove, 4 is a pipe, 5 is a sliding groove, 6 is a rubber ring, 7 is a stretching die, 71 is a stretching plate, 8 is a fixed groove plate, 9 is a clamping mechanism, 91 is a fixed inclined surface plate, 92 is a clamping plate, 921 is a groove, 93 is a hydraulic cylinder, 94 is a push block, 95 is a synchronizing part, 10 is a sliding rail, and 11 is a sliding plate. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 3 , the present application will be further described in detail.

[0034] A metal pipe transverse stretching device, referring to Figure 1 , Figure 2, including the base plate 1 and a set of fixed groove plate 8 arranged on the base plate 1, two fixed groove plate 8 opposite face is provided with a groove, the groove is slidably clamped with the stretching plate 71, the stretching plate 71 center position is fixed with the stretching die 7 through bolt; The base plate 1 is provided with a placing plate 3 on one side of the stretching plate 71, the placing plate 3 is provided with an arc-shaped groove 31 slidably clamped with the pipe fitting 4, the placing plate 3 and the stretching plate 71 are provided with a transmission assembly 2, the transmission assembly 2 includes a pneumatic cylinder 21, the pneumatic cylinder 21 output end is provided with the bracket 22 slidably connected with the base plate 1, the base plate 1 is provided with two groups of sliding grooves 5, the bracket 22 is clamped and slides in the sliding groove 5 through the slider arranged on the bottom surface thereof, the bracket 22 is rotatably connected with the clamping wheel 23, the clamping wheel 23 rotatable face is sleeved with the rubber ring 6, the bracket 22 is provided with the driving motor 24 for driving the clamping wheel 23 to rotate; The pipe fitting 4 is horizontally placed in the arc-shaped groove 31 of the placing plate 3, the clamping wheel 23 is arranged in groups, and each group of clamping wheels 23 is rotatably abutted on both sides of the pipe fitting 4 respectively, so that the pipe fitting 4 is driven to pass through the stretching die 7, and one end of the pipe fitting 4 passing through the stretching die 7 is pre-processed in diameter by other equipment, which is convenient for the pipe fitting 4 to pass through the stretching die 7.

[0035] Referring to Figure 2 、 Figure 3 , the base plate 1 is provided with a set of slide rails 10 away from the placing plate 3 on one side of the stretching plate 71, the slide rails 10 are slidably provided with a sliding plate 11 driven to move by a driving element, and the driving element (not shown in the figure) is a conventional hydraulic drive in the prior art; The sliding plate 11 is provided with a clamping mechanism 9 for clamping the pipe fitting 4, and the pipe fitting 4 passes through the stretching die 7 when the driving element drives the clamping mechanism 9 to clamp the pipe fitting 4; The clamping mechanism 9 includes a set of fixed inclined plane plates 91 and two clamping plates 92 matched with the inclined surface of the fixed inclined plane plates 91, the fixed inclined plane plates 91 are fixed on the sliding plate 11 through bolts, and the two clamping plates 92 are provided with a groove 921 on the side close to each other, the sliding plate 11 is provided with a hydraulic cylinder 93, the hydraulic cylinder 93 output end is provided with a push block 94, the push block 94 is provided with a synchronous element 95 slidably clamped in the groove 921, the synchronous element 95 is "T" type, under the action of the hydraulic cylinder 93 driving the push block 94 to move, the two clamping plates 92 slide along the inclined surface of the fixed inclined plane plates 91 to each other, until the pipe fitting 4 is stably clamped and fixed by the hydraulic cylinder 93, and the clamping effect is maintained; Through the return stroke of the hydraulic cylinder 93 output end, the synchronous element 95 moves to the end of the groove 921 and abuts against it, drives the clamping plate 92 to move towards the direction close to the hydraulic cylinder 93, and releases the pipe fitting 4.

[0036] The implementation principle of the embodiment of the present application is:

[0037] In actual work, the pipe 4 is placed in the arc-shaped slot 31 of the placing plate 3, the support 22 is driven by the air cylinder 21 to move to clamp the pipe 4, the driving motor 24 drives the clamping wheel 23 to rotate, so that the pipe 4 is horizontally transported through the stretching die 7; one end of the pipe 4 is clamped and fixed by the clamping mechanism 9 through the stretching die 7, under the action of the driving member, the clamping mechanism 9 moves with the sliding plate 11 on the sliding rail 10 until the pipe 4 completely passes through the stretching die 7, and the stretching is completed; the problem that a worker is difficult to maintain the horizontal transmission of the pipe 4 when manually holding and conveying the pipe 4 is avoided, so that the stretching quality of the pipe 4 is improved.

[0038] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A transverse stretching device for metal pipes, characterized in that: The system includes a base plate (1) and a transfer assembly (2) mounted on the base plate (1). A placement plate (3) is mounted on the base plate (1). The transfer assembly (2) includes a cylinder (21). The output end of the cylinder (21) is provided with a bracket (22) that is slidably connected to the base plate (1). The bracket (22) is rotatably connected with a clamping wheel (23). The bracket (22) is provided with a drive motor (24) that drives the clamping wheel (23) to rotate. A pipe fitting (4) is horizontally placed on the placement plate (3). The clamping wheels (23) are arranged in groups. Each group of clamping wheels (23) rotates and abuts against both sides of the pipe fitting (4), driving the pipe fitting (4) to move horizontally away from the placement plate (3).

2. The transverse stretching device for metal pipes according to claim 1, characterized in that: The placement plate (3) is provided with an arc-shaped groove (31) for sliding engagement pipe fitting (4).

3. The transverse stretching device for metal pipes according to claim 1, characterized in that: The base plate (1) is provided with a sliding groove (5), and the bracket (22) is slidably engaged with the sliding groove (5).

4. The transverse stretching device for metal pipes according to claim 1, characterized in that: The rotating surface of the clamping wheel (23) is concave arc-shaped, and the clamping wheel (23) is fitted with a rubber ring (6).

5. The transverse stretching device for metal pipes according to claim 1, characterized in that: A stretching die (7) is provided above the base plate (1) for the pipe fitting (4) to pass through, so that the pipe fitting (4) is reduced in diameter and stretched.

6. The transverse stretching device for metal pipes according to claim 5, characterized in that: The stretching die (7) is set on the stretching plate (71) and corresponds to the pipe fitting (4); the base plate (1) is provided with a set of fixing groove plates (8), and the stretching plate (71) is slidably engaged between the fixing groove plates (8).

7. The transverse stretching device for metal pipes according to claim 6, characterized in that: The base plate (1) is provided with a slide rail (10) on the side of the stretching plate (71) away from the placement plate (3). The slide rail (10) is slidably provided with a slide plate (11). The base plate (1) is provided with a driving member connected to the slide plate (11) to drive the slide plate (11) to slide away from the stretching plate (71).

8. The transverse stretching device for metal pipes according to claim 7, characterized in that: The top surface of the slide plate (11) is provided with a clamping mechanism (9). The clamping mechanism (9) includes a set of fixed inclined plates (91) and two clamping plates (92) adapted to the inclined surfaces of the fixed inclined plates (91). The slide plate (11) is provided with a hydraulic cylinder (93). The output end of the hydraulic cylinder (93) is provided with a push block (94). The two clamping plates (92) slide closer to each other along the inclined surfaces under the action of the hydraulic cylinder (93) driving the push block (94) to move, until the tube (4) is stably clamped and passes through one end of the stretching die (7).

9. A transverse stretching device for metal pipes according to claim 8, characterized in that: The two clamping plates (92) are provided with grooves (921) on their adjacent sides, and the push block (94) is provided with synchronizing elements (95) on both sides that slide and engage with the corresponding grooves (921).

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