CN217701791U

CN217701791U - Dismantle split type friction stir welding's stirring tool

Info

Publication number: CN217701791U
Application number: CN202220046156.3U
Authority: CN
Inventors: 张志函
Original assignee: Dongguan Jingming Hardware Technology Co ltd
Current assignee: Dongguan Jingming Hardware Technology Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-11-01
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a dismantle split type friction stir welding's stirring tool relates to friction stir welding technical field, including supporting rod, friction stir bar, shaft shoulder body and friction stir head, the friction stir bar is pegged graft in the supporting rod, this body coupling of shaft shoulder is on the friction stir bar, the friction stir head is connected on the shaft shoulder body, the utility model discloses in, when the pulling connecting rod drives slide horizontal slip, make the one end of connecting rod take out from the friction stir bar, can pull down the friction stir head this moment, open the installation cavity, then through sealed lid to holding the incasement injection coolant liquid of liquid, make the coolant liquid fall into the cooling jacket intraductally through the connector, then hold the coolant liquid of the intraductal injection of liquid case and cooling jacket and can cool down the friction stir bar, the utility model discloses can conveniently change the friction stir head, reduce device use cost, the high temperature that produces when effective pairing rotation simultaneously cools off, has prolonged the life of device.

Description

Dismantle split type friction stir welding's stirring tool

Technical Field

The utility model relates to a friction stir welding technical field especially relates to a dismantle split type friction stir welding's stirring tool.

Background

Friction stir welding refers to the process of locally melting a welded material by using heat generated by friction between a welding tool rotating at a high speed and a workpiece, wherein when the welding tool moves forwards along a welding interface, a plasticized material flows from the front part to the rear part of the welding tool under the action of rotational friction of the welding tool and forms a dense solid-phase weld joint under the extrusion of the welding tool, and the friction stir welding process is the same as that of conventional friction welding. Friction stir welding also uses frictional heat and plastic deformation heat as welding heat sources. The difference is that in the friction stir welding process, a cylindrical stirring needle or a stirring needle with other shapes (such as a threaded cylinder) extends into the joint of the workpieces, and the stirring needle is rubbed with the materials of the welded workpieces through the high-speed rotation of a welding head, so that the temperature of the materials at the joint part is increased and softened. Meanwhile, the welding is completed by stirring and rubbing the materials, a workpiece is rigidly fixed on the back cushion in the welding process, the welding head rotates at a high speed, and the workpiece moves relative to the joint of the workpiece along the joint. The protruding section of the welding head extends into the material to be rubbed and stirred, the shoulder part of the welding head and the surface of the workpiece are rubbed to generate heat, the shoulder part of the welding head is used for preventing the material in a plastic state from overflowing, and the shoulder part of the welding head can play a role in removing the surface oxidation film.

In the prior art (publication number CN 203091965U), a thick plate type friction stir spot welding stirring tool comprises a pressing sleeve, a stirring sleeve and a stirring pin; one end of the stirring pin is inserted into the stirring sleeve and is movably connected with the stirring sleeve, and the stirring pin can rotate and move up and down relative to the stirring sleeve; one end of the stirring sleeve is inserted into the pressing sleeve and is movably connected with the pressing sleeve, and the stirring sleeve can rotate and move up and down relative to the pressing sleeve; the stirring pin presses the processed test piece downwards, meanwhile, the stirring sleeve rises upwards, stirring material discharge spaces are formed between the pressing sleeve and the stirring pin and between the stirring sleeve and the processed test piece, and the volume of the stirring material discharge spaces is equal to the volume of the processed test piece material extruded by the stirring pin row.

However, the friction stir spot welding tool of the thick plate type still has the following problems in practical use: if the device is in the use, lack quick disassembly body, because the pin usually needs high-speed rotation and with by welding the work piece extrusion each other, consequently often can cause certain damage to the pin at the welded in-process, along with long-time use, its pin often can appear condemned condition, and because the pin of the device is fixed connection with the device, consequently when the pin appears damaging, often need change whole device, user's use cost has been increased to a certain extent, simultaneously lack effectual cooling heat dissipation mechanism in the device, in the in-process of device pin work, because it often needs to carry out high-speed rotation, and can produce more heat at rotatory in-process, along with the increase of live time, the high temperature that its produced will cause certain damage to the pin, the life of device has been reduced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dismantle split type friction stir welding's stirring tool has solved the not convenient to pin mixer of prior art and has changed and probably reduce device life's technical problem owing to lack cooling heat dissipation mechanism.

In order to solve the technical problem, the utility model provides a pair of dismantle split type friction stir welding's stirring instrument includes: the stirring friction rod is inserted into the clamping rod, the shaft shoulder body is connected onto the stirring friction rod, the stirring friction head is connected onto the shaft shoulder body, a positioning mechanism is arranged on the clamping rod and used for installing the stirring friction rod, a cooling and heat dissipation mechanism is arranged in the clamping rod and used for cooling the stirring friction head.

Preferably, the positioning mechanism comprises a positioning block, the positioning block is connected to one side of the clamping rod, a cavity is formed in the positioning block, a sliding plate is connected to the cavity in a sliding mode, a connecting rod is connected to the sliding plate, a buffer spring is sleeved on the connecting rod, one end of the buffer spring is connected to the sliding plate, the other end of the buffer spring is connected to the inner wall of the cavity, one end of the connecting rod penetrates through the sliding plate and extends into the stirring friction rod, and a positioning groove matched with the connecting rod is formed in the stirring friction rod.

Preferably, cooling heat dissipation mechanism is including holding the liquid case, it connects in the supporting rod to hold the liquid case, set up the installation cavity in the supporting rod, be provided with the solenoid valve in the installation cavity, the solenoid valve adopts electrical property on-off control, and this setting can make things convenient for the staff to control the state of opening of solenoid valve, conveniently leads to the coolant liquid to holding the liquid incasement through the solenoid valve, the one end of solenoid valve is connected on holding the liquid case, the other end of solenoid valve extends to the outside of supporting rod and articulates there is sealed lid, it is connected with cooling jacket on the liquid case to hold, the connector has all been seted up to one side of cooling jacket and one side of holding the liquid case, two the connector is linked together, cooling jacket is inconsistent with stirring friction lever.

Preferably, the inner wall of the positioning block is connected with two compression springs which are symmetrical to each other, one ends, far away from the inner wall of the positioning block, of the compression springs are connected to the sliding plate, and firmness of the connecting rod in abutting contact with the stirring friction rod is improved due to the arrangement.

Preferably, the both sides of slide all are provided with the ball, set up the spout with ball looks adaptation on the inner wall of locating piece, should set up the frictional force when having reduced the slide and slide, made things convenient for the staff to stimulate the connecting rod.

Preferably, the bottom of holding the liquid case is connected with two guide blocks of mutual symmetry, the guide block is pegged graft in the friction stir bar, set up the guide way with guide block looks adaptation on the friction stir bar, should set up to provide certain guide effect for the installation of friction stir bar.

Preferably, the other end of the connecting rod extends to the outside of the positioning block and is connected with a knob, the knob is connected with a protecting sleeve, and the connecting rod can be conveniently pulled by a worker due to the arrangement.

Preferably, the other end of the electromagnetic valve is connected with a sealing ring, the sealing ring is matched with the sealing cover, and the sealing effect of the sealing ring can be improved due to the arrangement.

Preferably, the number of the positioning blocks is four, and the positioning effect of the device is improved through the four positioning blocks.

Preferably, the clamping rod is made of die steel, the die steel is high in hardness, strength and wear resistance, and the wear resistance of the device is improved by sufficient toughness.

Compared with the prior art, the utility model provides a pair of dismantle split type friction stir welding's instrument has following beneficial effect:

1. the utility model discloses in, when staff's accessible pulling connecting rod drove slide horizontal slip, the one end that makes the connecting rod is taken out in the friction stir bar, can pull down the friction stir head this moment, changes it, should set up and in time change it when the friction stir head appears damaging, solved among the prior art because lack the disassembly body, lead to the friction stir head when the damage appears, need carry out the problem of changing to whole device, reduced the use cost of device.

2. The utility model discloses in, at first open the installation cavity, then through sealed lid to holding the incasement injection coolant liquid of liquid, make the coolant liquid fall into the cooling jacket through the connector in, then hold the coolant liquid of the intraductal injection of liquid case and cooling jacket and can cool down the friction stir bar, avoid the device because lack the condition that the life that the cooling heat dissipation mechanism probably leads to the device reduces in long-time use.

Drawings

FIG. 1 is a schematic view of the overall structure of a stirring tool for disassembling a split type friction stir welding;

FIG. 2 is a schematic view of the internal structure of a stirring tool for disassembling a split type friction stir welding;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged view of the structure at B in fig. 2.

Reference numbers in the figures: 1. a clamping rod; 2. a friction stir bar; 3. a shoulder body; 4. stirring a friction head; 5. positioning a block; 6. a slide plate; 7. a connecting rod; 8. a buffer spring; 9. a liquid storage tank; 10. a mounting cavity; 11. an electromagnetic valve; 12. a sealing cover; 13. a seal ring; 14. cooling the sleeve; 15. a compression spring; 16. a ball bearing; 17. a guide block; 18. a knob.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention. 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 to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

First embodiment, as illustrated in FIGS. 1-4, a friction stir welding tool for removing a split friction stir weld, comprising: the stirring friction rod 2 is inserted into the clamping rod 1, the shaft shoulder body 3 is connected onto the stirring friction rod 2, the stirring friction head 4 is connected onto the shaft shoulder body 3, a positioning mechanism is arranged on the clamping rod 1 and used for installing the stirring friction rod 2, a cooling and heat dissipation mechanism is arranged in the clamping rod 1 and used for cooling the stirring friction head 4, the positioning mechanism comprises a positioning block 5, the positioning block 5 is connected onto one side of the clamping rod 1, a cavity is formed in the positioning block 5, a sliding plate 6 is connected in the cavity in a sliding mode, a connecting rod 7 is connected onto the sliding plate 6, a buffer spring 8 is sleeved on the connecting rod 7, one end of the buffer spring 8 is connected onto the sliding plate 6, the other end of the buffer spring is connected onto the inner wall of the cavity, one end of the connecting rod 7 penetrates through the sliding plate 6 and extends into the stirring friction rod 2, the stirring friction rod 2 is internally provided with a positioning groove matched with the connecting rod 7, the cooling and heat dissipation mechanism comprises a liquid storage box 9, the liquid storage box 9 is connected in the clamping rod 1, the clamping rod 1 is internally provided with an installation cavity 10, an electromagnetic valve 11 is arranged in the installation cavity 10, the electromagnetic valve 11 is controlled by an electric switch, the arrangement is convenient for a worker to control the opening state of the electromagnetic valve 11, the cooling liquid is conveniently led into the liquid storage box 9 through the electromagnetic valve 11, one end of the electromagnetic valve 11 is connected on the liquid storage box 9, the other end of the electromagnetic valve 11 extends to the outside of the clamping rod 1 and is hinged with a sealing cover 12, the liquid storage box 9 is connected with a cooling sleeve 14, one side of the cooling sleeve 14 and one side of the liquid storage box 9 are both provided with connecting ports which are communicated, the cooling sleeve 14 is abutted against the stirring friction rod 2, and the connecting rod 7 is pulled to drive the sliding plate 6 to horizontally slide, one end of the connecting rod 7 is pulled out of the stirring friction rod 2, the stirring friction head 4 can be detached at the moment and replaced, the stirring friction head 4 can be replaced in time when damaged, the mounting cavity 10 is opened, then cooling liquid is injected into the liquid storage box 9 through the sealing cover 12, the cooling liquid is made to fall into the cooling sleeve 14 through the connecting port, and then the cooling liquid injected into the liquid storage box 9 and the cooling sleeve 14 can cool the stirring friction rod 2.

In the second embodiment, on the basis of the first embodiment, two compression springs 15 which are symmetrical to each other are connected to the inner wall of the positioning block 5, and one ends of the compression springs 15, which are far away from the inner wall of the positioning block 5, are connected to the sliding plate 6, so that the firmness of the connecting rod 7 abutting against the inside of the friction stir bar 2 is improved, and the stability of the device during use is improved.

Third embodiment, on the basis of first embodiment, the both sides of slide 6 all are provided with ball 16, set up the spout with 16 looks adaptations of ball on the inner wall of locating piece 5, should set up the frictional force when having reduced slide 6 and sliding, made things convenient for staff pulling connecting rod 7, promoted the practicality of device.

In the fourth embodiment, on the basis of the first embodiment, the bottom of the liquid storage tank 9 is connected with two guide blocks 17 which are symmetrical to each other, the guide blocks 17 are inserted into the friction stir bar 2, and the friction stir bar 2 is provided with guide grooves which are matched with the guide blocks 17, so that a certain guiding effect is provided for the installation of the friction stir bar 2, and the installation of the friction stir bar 2 is facilitated.

Fifth, on the basis of the first embodiment, the other end of the connecting rod 7 extends to the outside of the positioning block 5 and is connected with a knob 18, and the knob 18 is connected with a protective sleeve, so that the connecting rod 7 can be conveniently pulled by a worker.

Sixth embodiment, on the basis of first embodiment, be connected with sealing washer 13 on the other end of solenoid valve 11, sealing washer 13 and sealed 12 looks adaptations have improved the sealed effect of sealing washer 13 to this setting, avoid the coolant liquid the condition that overflows when using.

Seventh, on the basis of the first embodiment, the number of the positioning blocks 5 is four, and the positioning effect of the device is improved by the four positioning blocks 5, so that the stability of the device in use is improved.

Eighth embodiment, on the basis of first embodiment, the material of clamping rod 1 is the die steel, and this setting utilizes die steel high hardness, intensity, wearability, and sufficient toughness has promoted the wear resistance of device, has prolonged the life of device.

The working principle is as follows:

when the friction stir head 4 is damaged and needs to be replaced:

staff's accessible pulling connecting rod 7 drives 6 horizontal slip of slide in, the one end that makes connecting rod 7 is taken out in friction stir bar 2, can pull down friction stir head 4 this moment, change it, can know with the principle, at first peg graft friction stir bar 2 in supporting rod 1 when the installation, then loosen the elastic force effect that connecting rod 7 that stimulates in advance made slide 6 receive buffer spring 8 and drive connecting rod 7 and contradict in friction stir bar 2, can fix a position friction stir head 4, the device can conveniently change friction stir head 4, the use cost of device has been reduced.

When the device is in daily use:

firstly, the mounting cavity 10 is opened, then cooling liquid is injected into the liquid storage box 9 through the sealing cover 12, the cooling liquid falls into the cooling sleeve 14 through the connecting port, and the cooling sleeve 14 is abutted to the stirring friction rod 2, so that when the device rotates to generate high temperature, the cooling sleeve 14 and the cooling liquid placed in the liquid storage box 9 can provide a certain cooling effect for the generated high temperature, and the device solves the problem that the service life of the device is possibly influenced due to the lack of a cooling and heat dissipation mechanism in the prior art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stirring tool for disassembling a split friction stir weld, comprising: the stirring friction device comprises a clamping rod (1), a stirring friction rod (2), a shaft shoulder body (3) and a stirring friction head (4), wherein the stirring friction rod (2) is inserted into the clamping rod (1), the shaft shoulder body (3) is connected onto the stirring friction rod (2), the stirring friction head (4) is connected onto the shaft shoulder body (3), and the stirring friction device is characterized in that a positioning mechanism is arranged on the clamping rod (1), the positioning mechanism is used for installing the stirring friction rod (2), a cooling and heat dissipation mechanism is arranged in the clamping rod (1), and the cooling and heat dissipation mechanism is used for cooling the stirring friction head (4).

2. The stirring tool for disassembling the split type friction stir welding according to claim 1, wherein the positioning mechanism includes a positioning block (5), the positioning block (5) is connected to one side of the clamping rod (1), a cavity is formed in the positioning block (5), a sliding plate (6) is slidably connected in the cavity, a connecting rod (7) is connected to the sliding plate (6), a buffer spring (8) is sleeved on the connecting rod (7), one end of the buffer spring (8) is connected to the sliding plate (6), the other end of the buffer spring is connected to the inner wall of the cavity, one end of the connecting rod (7) penetrates through the sliding plate (6) and extends into the friction stir rod (2), and a positioning groove matched with the connecting rod (7) is formed in the friction stir rod (2).

3. The stirring tool for disassembling the split type friction stir welding according to claim 1, wherein the cooling and heat dissipation mechanism comprises a liquid storage tank (9), the liquid storage tank (9) is connected inside the clamping rod (1), an installation cavity (10) is formed inside the clamping rod (1), an electromagnetic valve (11) is arranged inside the installation cavity (10), one end of the electromagnetic valve (11) is connected to the liquid storage tank (9), the other end of the electromagnetic valve (11) extends to the outside of the clamping rod (1) and is hinged with a sealing cover (12), the liquid storage tank (9) is connected with a cooling sleeve (14), one side of the cooling sleeve (14) and one side of the liquid storage tank (9) are both provided with connecting ports, the two connecting ports are communicated, and the cooling sleeve (14) is abutted to the friction stir rod (2).

4. The stirring tool for disassembling the split type friction stir welding according to claim 2, wherein the inner wall of the positioning block (5) is connected with two compression springs (15) which are symmetrical to each other, and one ends of the compression springs (15) far away from the inner wall of the positioning block (5) are connected with the sliding plate (6).

5. The stirring tool for disassembling the split type friction stir welding according to claim 2, wherein balls (16) are disposed on both sides of the sliding plate (6), and a sliding groove adapted to the balls (16) is formed on an inner wall of the positioning block (5).

6. The stirring tool for disassembling the split type friction stir welding according to claim 3, wherein the bottom of the liquid storage tank (9) is connected with two guide blocks (17) which are symmetrical to each other, the guide blocks (17) are inserted into the friction stir bar (2), and the friction stir bar (2) is provided with a guide groove which is matched with the guide blocks (17).

7. The stirring tool for disassembling the split type friction stir welding according to claim 2, wherein the other end of the connecting rod (7) extends to the outside of the positioning block (5) and is connected with a knob (18), and a protective sleeve is connected on the knob (18).

8. A stirring tool for disassembling split type friction stir welding according to claim 3, characterized in that a sealing ring (13) is connected to the other end of the electromagnetic valve (11), and the sealing ring (13) is matched with the sealing cover (12).

9. A tool for disassembling friction stir welds according to claim 2, characterized in that the number of said positioning blocks (5) is four.

10. A stirring tool for disassembling split type friction stir welding according to claim 1 is characterized in that the material of the clamping rod (1) is die steel.