CN215145652U - Tool for friction stir welding of barrel - Google Patents

Abstract

The utility model provides a be used for barrel friction stir welding's frock, including inner support body, hold-down mechanism, first base and second base, inner support body includes the crossbeam and connects the inner support in the crossbeam below, and the holding surface at the position back is treated for being used for supporting the barrel to the upper surface of crossbeam, is provided with lift adjustment mechanism between inner support and the crossbeam, and inner support seat places on the second base, and the first end of crossbeam is barrel dress end, and the second end of crossbeam is installed on first base, and when the barrel clamping, the barrel cover is in inner support body is peripheral, and the upper and lower inner wall of barrel is propped up by the upper surface and the inner support seat of crossbeam respectively, and the lower part of inner support seat and barrel supports on the second base, and hold-down mechanism presses the upper portion of barrel on the crossbeam upper surface. The structure is convenient for avoiding the cylinder body during clamping, and the cylinder body is clamped and supported after clamping, so that stable clamping of the cylinder body is ensured. And can adapt to the condition that the length of the cylinder body exceeds the workbench.

Description

Tool for friction stir welding of barrel

Technical Field

The utility model belongs to the technical field of friction stir welding, a frock for barrel friction stir welding is related to.

Background

Friction stir welding is a solid state plasticized joining technique, in which the weld is formed without melting the weld metal. Since the advent of friction stir welding technology, it has found widespread use in the field of welding of low melting point metals, particularly aluminum alloys. The friction stir welding technique has the following characteristics: no fusion welding defect, small welding deformation, simple operation and suitability for various materials and joint forms.

While friction stir welding has many comparable advantages over fusion welding, fusion welding techniques are now being used more often in welding barrel structures. The main reason is that friction stir welding requires rigid support of the back of the weld, which is not required by the fusion welding method, and for many welded structures, rigid support of the back is difficult to provide, especially for cylindrical structures. The support frock that is used for barrel girth welding among the prior art is common, and is less to the bearing structure of barrel axial seam welding.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art not enough, the utility model aims to provide a frock for barrel friction stir welding is convenient for support the barrel in friction stir welding process to the dismouting of the barrel of being convenient for.

In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows: a tool for friction stir welding of a cylinder comprises an inner support body, a pressing mechanism, a first base and a second base, wherein the inner support body is used for supporting the cylinder from the inside, the pressing mechanism is used for pressing the cylinder onto the inner support body from the top, the first base and the second base are used for supporting the inner support body from the bottom, the inner support body comprises a cross beam and an inner support connected below the cross beam, the upper surface of the cross beam is a supporting surface used for supporting the back of a part to be welded of the cylinder, a lifting adjusting mechanism used for enabling the inner support body and the cross beam to be close to or far away from each other up and down is arranged between the inner support body and the cross beam, the inner support body is placed on the second base, the first end of the cross beam is a cylinder installing end, the second end of the cross beam is installed on the first base, the cylinder is sleeved on the periphery of the inner support body when the cylinder is installed, the upper inner wall and the lower inner wall of the cylinder are respectively supported by the upper surface of the cross beam and the inner support body, the inner support and the lower part of the cylinder are supported on the second base, and the upper part of the cylinder is pressed on the upper surface of the cross beam by the pressing mechanism.

Optionally, the lifting adjusting mechanism includes an adjusting block and an executing mechanism for driving the adjusting block to move horizontally, the adjusting block is located between the cross beam and the inner support, and the adjusting block is matched with the cross beam or the adjusting block is matched with the inner support through an inclined plane.

Optionally, a guide structure for keeping the inner support and the cross beam moving in the vertical direction is arranged between the inner support and the cross beam, and the guide structure limits the movement between the inner support and the cross beam in the horizontal direction.

Optionally, the guide structure is at least two guide posts vertically arranged on the inner support, and the guide posts extend into the lower part of the cross beam.

Optionally, the actuating mechanism includes a screw and a rocker connected to a first end of the screw, a screw seat is disposed on a lower portion of the cross beam near the first end, the screw passes through the screw seat, and a second end of the screw is axially fixed and circumferentially rotatably connected to the adjusting block.

Optionally, the upper surface of regulating block is the plane, and the lower surface is the inclined plane, the upper surface of inner support is provided with two fixed blocks, the screw rod is located between two fixed blocks, just the upper surface of fixed block is the inclined plane that corresponds with the lower surface of regulating block.

Optionally, the cross beam is an i-beam, the second end of the cross beam is fixed on the workbench through the first base, the second base is fixed on the workbench, and the inner support is supported on the second base.

Optionally, the pressing mechanism comprises pressing plates for pressing two sides of the welding seam of the cylinder, and the pressing plates are arranged in multiple groups along the length direction of the cross beam.

The utility model has the advantages that: when the barrel is clamped, the barrel is arranged from one end of the cross beam and sleeved on the periphery of the cross beam, the barrel is in a horizontal state, the position to be welded of the barrel is positioned above the cross beam, the back of the position to be welded of the barrel is supported on the supporting surface of the cross beam, the inner support is pressed on the inner wall of the lower part of the barrel, the lower part of the barrel is clamped with the second base below the barrel, and the inner support and the cross beam can be close to or far away from each other in the vertical direction due to the lifting adjusting mechanism, so that the inner support and the cross beam can be reliably close to each other in the process of loading or moving the barrel to avoid the barrel to be sleeved in or moved out; after the cylinder is installed in place, the cylinder is far away from the inner wall of the cylinder, the inner wall of the cylinder is supported up and down, the cylinder is clamped tightly with the pressing mechanism and the second base respectively, and the second base supports the cylinder, the inner support and the cross beam.

Drawings

FIG. 1 is a schematic structural diagram in one embodiment;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of FIG. 1 with the work table omitted;

FIG. 5 is a schematic view of the mounting of the lift adjustment mechanism to the inner support in one embodiment;

FIG. 6 is another side schematic view of FIG. 5;

FIG. 7 is a schematic view of an inner support in one embodiment;

FIGS. 8 and 9 are schematic views showing the cylinder clamped on the jig;

FIG. 10 is a side view of FIG. 1;

fig. 11 is a schematic view of the cylinder pressing on the inner support body through the pressing mechanism.

Part number description:

1-a workbench; 21-a cross beam; 22-an inner support; 23-fixing blocks; 3-a first base; 41-a regulating block; 42-screw rod; 43-rocker; 44-screw seat; 5-a second base; 6-cylinder body; 61-a weld; 7-a guide post; 8-a pressing mechanism.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Examples

As shown in fig. 1 to 11, a tooling for friction stir welding of a cylinder is schematically illustrated, a gap to be welded of the cylinder 6 is along the axial direction of the cylinder 6, and includes an inner support for supporting the cylinder 6 from inside, a pressing mechanism 8 for pressing the cylinder 6 against the inner support from above, and a first base 3 and a second base 5 for supporting the inner support from below, the inner support includes a cross beam 21 and an inner support 22 connected below the cross beam 21, an upper surface of the cross beam 21 is a supporting surface for supporting a back surface of a welding portion of the cylinder 6, a lifting adjusting mechanism for enabling the inner support 22 and the cross beam 21 to move up and down to be close to or away from each other is provided between the inner support 22 and the cross beam 21, and the inner support 22 is placed on or supported by the second base 5 so that the inner support 22 can be separated from the second base 5, thereby facilitating the loading or unloading of the cylinder 6, the first end of the cross beam 21 is the mounting end of the cylinder 6, the second end of the cross beam 21 is mounted on the first base 3, when the cylinder 6 is mounted, the cylinder 6 is sleeved on the periphery of the inner support body, the upper inner wall and the lower inner wall of the cylinder 6 are respectively supported by the upper surface of the cross beam 21 and the inner support 22, the inner support 22 and the lower portion of the cylinder 6 are supported on the second base 5 together, and the upper portion of the cylinder 6 is pressed on the upper surface of the cross beam 21 by the pressing mechanism 8.

The first base 3 and the second base 5 are used for being connected with the workbench 1, when the barrel 6 is clamped, the barrel 6 is arranged from one end of the beam 21 and sleeved on the periphery of the beam 21, the barrel 6 is in a horizontal state, the position to be welded of the barrel 6 is positioned above the beam 21, the back of the position to be welded of the barrel 6 is supported on the supporting surface of the beam 21, the inner support 22 is pressed on the inner wall of the lower part of the barrel 6 and clamps the lower part of the barrel 6 with the second base 5 below the barrel 6, and the inner support 22 and the beam 21 can be close to or far away from each other in the vertical direction and are kept at the position due to the lifting adjusting mechanism, and can be reliably closed in the process of arranging or moving the barrel 6 so as to avoid the barrel 6 to be sleeved or moved out; after being installed in place, the inner walls of the cylinder 6 are far away from each other, so that the inner walls of the cylinder 6 are supported up and down and are respectively clamped with the pressing mechanism 8 and the second base 5 to clamp the cylinder 6, and the second base 5 supports the cylinder 6, the inner support 22 and the cross beam 21.

The structure is convenient for avoiding the cylinder 6 during clamping, and the cylinder 6 is clamped and supported after clamping, so that stable clamping of the cylinder 6 is ensured. And can adapt to the condition that the length of the cylinder 6 exceeds the length of the workbench 1, the second base 5 can be positioned below the middle part of the cross beam 21 or below the first end.

In one embodiment, the lifting adjusting mechanism includes an adjusting block 41 and an executing mechanism for driving the adjusting block 41 to move horizontally, the adjusting block 41 is disposed between the cross beam 21 and the inner support 22, and the adjusting block 41 and the cross beam 21 or the adjusting block 41 and the inner support 22 are matched through an inclined plane, and in the process that the executing mechanism drives the adjusting block 41 to move horizontally, the inner support 22 and the cross beam 21 are driven to move vertically through the inclined plane.

In this example, the upper surface of the adjusting block 41 is a plane and contacts with the lower surface of the cross beam 21, the lower surface of the adjusting block 41 is an inclined surface and gradually rises or falls along the length direction of the cross beam 21, two fixing blocks 23 are arranged on the upper surface of the inner support 22, the upper surface of each fixing block 23 is an inclined surface correspondingly matched with the lower surface of the adjusting block 41, and when the adjusting block 41 is driven by the actuating mechanism to horizontally move, vertical displacement is realized through the two complementary inclined surfaces.

As shown in fig. 5 to 7, in one embodiment, the actuator includes a screw rod 42 and a rocker 43 connected to a first end of the screw rod 42, the rocker 43 is located at the loading end of the barrel 6, a screw seat 44 is disposed on the lower portion of the cross beam 21 near the first end, the screw rod 42 passes through the screw seat 44, a second end of the screw rod 42 is connected to the adjusting block 41, and specifically, is axially fixed and circumferentially rotatably connected to the adjusting block 41, the screw rod 42 is in threaded engagement with the screw seat 44, when the rocker 43 is operated, the adjusting block 41 is driven by the screw rod 42 to move along the length direction of the cross beam 21, and the inner support 22 and the barrel 6 are supported on the second base 5, so that the cross beam 21 is driven to move up or down under the pressing action of the fixing block 23 and the adjusting block 41.

As shown in fig. 7 and 8, the screw rod 42 is located in the groove between the two fixing blocks 23, preventing the screw rod 42 from swinging, and limiting the moving direction of the adjusting block 41. In another embodiment, the screw rod 42 may be threadedly connected to the adjusting block 41, and the screw rod 42 and the screw rod seat 44 are circumferentially rotated relative to each other and axially fixed.

In one embodiment, a guide structure is provided between the inner support 22 and the cross beam 21 for maintaining vertical movement between the inner support 22 and the cross beam 21, the guide structure limiting horizontal movement between the inner support 22 and the cross beam 21 and limiting relative movement between the inner support 22 and the cross beam 21 in the vertical direction.

Specifically, the guiding structure is at least two guiding columns 7 vertically arranged on the inner support 22, the lower part of the cross beam 21 is provided with a guiding hole, and the guiding columns 7 extend into the guiding hole of the cross beam 21 to realize motion guiding.

In this example, the cross beam 21 is an i-beam, the second end of the cross beam 21 is fixed on the workbench 1 through the first base 3 and is welded or bolted to the first base 3, the second base 5 is fixed on the workbench 1 through bolts, the inner support 22 is supported on the second base 5 in a placement manner, and no connecting piece is arranged between the two.

As shown in fig. 11, the pressing mechanism 8 includes pressing plates for pressing both sides of the weld 61 of the cylinder 6, the pressing plates are arranged in multiple groups along the length direction of the cross beam 21, and the pressing plates are of a common pressing plate structure.

The utility model discloses, when the clamping of barrel 6, pack into from the one end of crossbeam 21, the cover is in crossbeam 21 periphery, barrel 6 is the state of lying down, the position of waiting to weld of barrel 6 is located crossbeam 21 top, the back support of the position of waiting to weld of barrel 6 is on the holding surface of crossbeam 21, inner support seat 22 presses the inner wall in barrel 6 lower part, with the second base 5 of barrel 6 below with the lower part clamp of barrel 6, and because lift adjustment mechanism can make between inner support seat 22 and crossbeam 21 draw close or keep away from in the vertical direction, reliably draw close in the process that barrel 6 was packed into or was shifted out, in order to dodge barrel 6 and embolia or shift out; after being installed in place, the inner walls of the cylinder 6 are far away from each other, so that the inner walls of the cylinder 6 are supported up and down and are respectively clamped with the pressing mechanism 8 and the second base 5 to clamp the cylinder 6, and the second base 5 supports the cylinder 6, the inner support 22 and the cross beam 21. The structure is convenient for avoiding the cylinder 6 during clamping, and the cylinder 6 is clamped and supported after clamping, so that stable clamping of the cylinder 6 is ensured. And can adapt to the condition that the length of the cylinder 6 exceeds the length of the workbench 1.

Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (8)

1. The utility model provides a be used for barrel friction stir welding's frock which characterized in that: the cylinder clamping device comprises an inner support body used for supporting a cylinder from the inside, a pressing mechanism used for pressing the cylinder onto the inner support body from the top, a first base and a second base used for supporting the inner support body from the bottom, the inner support body comprises a cross beam and an inner support connected below the cross beam, the upper surface of the cross beam is a supporting surface used for supporting the back of a to-be-welded part of the cylinder, a lifting adjusting mechanism used for enabling the inner support and the cross beam to be close to or far away from each other up and down is arranged between the inner support and the cross beam, the inner support is placed on the second base, the first end of the cross beam is a cylinder installing end, the second end of the cross beam is installed on the first base, the cylinder is sleeved on the periphery of the inner support body when the cylinder is clamped, the upper inner wall and the lower inner wall of the cylinder are respectively supported by the upper surface of the cross beam and the inner support, and the lower parts of the inner support and the cylinder are supported on the second base, the pressing mechanism presses the upper part of the cylinder body on the upper surface of the cross beam.

2. The tool for friction stir welding of barrels according to claim 1, wherein: the lifting adjusting mechanism comprises an adjusting block and an executing mechanism used for driving the adjusting block to move horizontally, the adjusting block is located between the cross beam and the inner support, and the adjusting block is matched with the cross beam or the adjusting block is matched with the inner support through an inclined plane.

3. The tool for friction stir welding of barrels according to claim 2, wherein: and a guide structure used for keeping the inner support seat and the cross beam to move in the vertical direction is arranged between the inner support seat and the cross beam, and the guide structure limits the movement between the inner support seat and the cross beam in the horizontal direction.

4. The tool for friction stir welding of barrels according to claim 3, wherein: the guide structure is at least two guide posts vertically arranged on the inner support, and the guide posts extend into the lower part of the cross beam.

5. The tool for friction stir welding of barrels according to claim 2, wherein: the actuating mechanism comprises a screw and a rocker connected with the first end of the screw, a screw seat is arranged on the lower portion, close to the first end, of the cross beam, the screw penetrates through the screw seat, and the second end of the screw is axially fixed and circumferentially and rotatably connected with the adjusting block.

6. The tool for friction stir welding of barrels according to claim 5, wherein: the upper surface of regulating block is the plane, and the lower surface is the inclined plane, the upper surface of inner support is provided with two fixed blocks, the screw rod is located between two fixed blocks, just the upper surface of fixed block is the inclined plane that corresponds with the lower surface of regulating block.

7. The tool for friction stir welding of barrels according to claim 1, wherein: the crossbeam is the I-beam, the second end of crossbeam is fixed on the workstation through first base, the second base is fixed on the workstation, the inner support in on the second base.

8. The tool for friction stir welding of barrels according to claim 1, wherein: the pressing mechanism comprises pressing plates for pressing two sides of a welding seam of the cylinder body, and the pressing plates are arranged into a plurality of groups along the length direction of the cross beam.

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