CN115647562A - Friction stir tunnel forming device and method - Google Patents
Friction stir tunnel forming device and method Download PDFInfo
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- CN115647562A CN115647562A CN202211373851.1A CN202211373851A CN115647562A CN 115647562 A CN115647562 A CN 115647562A CN 202211373851 A CN202211373851 A CN 202211373851A CN 115647562 A CN115647562 A CN 115647562A
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Abstract
A stirring friction tunnel forming device and a method relate to a tunnel forming device and a method. The invention aims to solve the problems that the existing liquid cooling radiator processing method is easy to have defects in the process of welding a liquid cooling plate, so that the phenomenon of water leakage occurs in the application process, and the normal work of a chip is seriously influenced. The forming device comprises an upper rotating body, a transition part, a disc spring part, a positioning part, a switching part, a shaft shoulder part and a lower rotating body; the coaxial suit of transition portion is in the lower part of last rotator, and dish spring portion and location portion from top to bottom are coaxial suit in proper order in the outside of transition portion, and the upper surface of shaft shoulder and the lower surface fixed connection of location portion, and the upper portion of lower rotator is in the lower extreme of coaxial insertion upper rotator after passing shaft shoulder from bottom to top, and the coaxial suit of switching portion is on the upper portion of lower rotator, and the switching portion is located the upper portion of shaft shoulder. The invention belongs to the field of machining.
Description
Technical Field
The invention relates to a tunnel forming device and method, and belongs to the field of machining.
Background
With the continuous development of integration technology, more and more high-integration and miniaturized systems are widely applied to all-round fields such as wireless communication, military industry, aerospace, automobile manufacturing and the like. The integrated system usually uses chips, and the chip manufacturing technology is continuously developed, but under the advantages of high integration, high power, small volume, etc., the integrated system is a more and more serious heat dissipation problem and a new fast and efficient heat dissipation method which is strictly demanded.
The conventional air-cooled finned radiator has a heat dissipation rate which is difficult to meet the current increasingly high heat dissipation requirements, so that the liquid-cooled radiator becomes an indispensable heat dissipation solution for chip equipment. The existing liquid cooling radiator processing method is to process a tunnel firstly and then cover and weld another liquid cooling plate to seal the tunnel, and the processing method needs two processing procedures, so that the processing process is troublesome. And defects are easy to occur in the process of welding the liquid cooling plate, so that the phenomenon of water leakage occurs in the application process, and the normal work of the chip is seriously influenced. In view of the above, the invention proposes a single-process friction stir liquid cooling tunnel forming method based on the friction stir large plastic deformation principle, and the core advantages of the method are that only one processing process is provided, the processing process is simple, and the method has good adaptability for forming special internal structures such as cross tunnels and highly continuous change tunnels.
Disclosure of Invention
The invention provides a friction stir tunnel forming device and method, aiming at solving the problems that the existing liquid cooling radiator processing method is easy to have defects in the process of welding liquid cooling plates, causes the phenomenon of water leakage in the application process and seriously influences the normal work of a chip.
The technical scheme adopted by the invention for solving the problems is as follows: the friction stir tunnel forming device comprises an upper rotating body, a transition part, a disc spring part, a positioning part, a switching part, a shaft shoulder part and a lower rotating body; the coaxial suit of transition portion is in the lower part of last rotator, and dish spring portion and location portion from top to bottom are coaxial suit in proper order in the outside of transition portion, and the upper surface of shaft shoulder and the lower surface fixed connection of location portion, and the upper portion of lower rotator is in the lower extreme of coaxial insertion upper rotator after passing shaft shoulder from bottom to top, and the coaxial suit of switching portion is on the upper portion of lower rotator, and the switching portion is located the upper portion of shaft shoulder.
Further, the upper rotating body is composed of a clamping handle, an upper clamping portion and a fixing portion which are sequentially and coaxially fixedly connected from top to bottom, and a cylindrical rotating screw hole for connecting with the lower rotating body is formed in the lower end face of the fixing portion.
Furthermore, the transition part is a prism body with a regular polygon cross section, a first cylindrical hole which penetrates through the transition part from top to bottom is formed in the lower end face of the transition part, at least one group of first screw holes which are arranged in a centrosymmetric mode are formed in the lower end face of the transition part, and the first screw holes are used for inserting screws and are coaxially and fixedly connected with the switching part.
Furthermore, the positioning part is composed of a lower annular clamping part, at least one group of second screw holes which are arranged in a central symmetry mode are formed in the lower surface of the lower clamping part, the second screw holes are used for inserting screws to be fixedly connected with the upper surface of the shaft shoulder part, and the disc spring part is clamped between the upper surface of the lower clamping part and the lower surface of the upper clamping part.
Furthermore, the middle part of the switching part is provided with a through hole for the upper part of the lower rotating body to pass through, the upper surface of the switching part is provided with at least one group of third screw holes which are arranged in a centrosymmetric manner, and the third screw holes are used for inserting screws and are fixedly connected with the transition part.
Further, the shaft shoulder part comprises a circular table part and a circular bead circular table part; the round table part and the round corner round table part are fixedly connected into a whole from top to bottom, a second cylindrical hole is formed in the center of the upper surface of the round table part, a square hole is formed in the center of the lower surface of the round corner round table part, and the square hole is coaxial and communicated with the second cylindrical hole.
Further, the lower rotating body is composed of a fixing portion, a cylindrical portion, a rectangular portion and a stirring needle portion which are sequentially and coaxially fixedly connected from top to bottom, threads matched with the cylindrical rotating screw hole are arranged on the outer wall of the fixing portion, and threads are arranged on the outer wall of the stirring needle portion.
The forming method of the friction stir tunnel comprises the following specific steps:
the method comprises the following steps that firstly, an upper rotating body is fixedly connected with a main shaft of machining equipment;
setting the initial position, sinking depth, advancing speed, moving speed and ending position of the stirring pin part of the lower rotating body;
step three, starting the mechanical processing equipment to enable the stirring pin part of the lower rotating body to advance according to the data set in the step two;
step four, in the moving process of the stirring pin part, as the surface of the stirring pin part is provided with threads, the material is upwards sucked and accumulated to the top of the plate, and a tunnel is formed in the moving direction of the stirring pin part in the plate;
and step five, introducing cooling liquid into the tunnel formed in the step four, and radiating the part to be radiated.
The forming method of the friction stir tunnel comprises the following specific steps:
firstly, after a friction stir tunnel is formed for the first time, when a cross tunnel is formed again, a stirring pin part moves to a preset position and sinks to a preset depth;
step two, when the top materials formed by the first friction stir tunnel are accumulated in the advancing process of the cross tunnel forming, the shaft shoulder part is subjected to pressure and transmits the pressure to the disc spring part when contacting with the accumulated convex materials in the high-speed rotating and advancing process, so that the disc spring part is stretched, and the shaft shoulder part and the disc spring part are stretched together;
and step three, the stirring pin part fixed with the upper rotating body cannot float up and down, the stirring pin part continues to advance along a preset track, the shaft shoulder part is in passive up-and-down telescopic floating when contacting and separating stacked materials, and the problem of unstable forming of the cross tunnel caused by direct large-area interference contact of the shaft shoulder part and the stacked materials is avoided.
The forming method of the friction stir tunnel comprises the following specific steps:
step one, setting an initial position, a sinking depth, a traveling speed, a rotating speed and a termination position of a stirring pin part;
step two, the lower rotating body, the switching part and the upper rotating body move up and down together by adjusting the height of the stirring needle part in the moving process of the stirring needle part;
and step three, the disc spring part has elasticity, the disc spring part drives the positioning part and the shaft shoulder part not to move longitudinally relative to the surface of the plate, namely, the lower surface of the shaft shoulder part is always attached to the surface of the plate, and the stirring pin part moves up and down actively, so that the capacity of preparing the tunnel with continuously variable height and stable forming is realized.
The invention has the beneficial effects that:
1. the invention can complete the integrated forming of the liquid cooling tunnel structure only by a single process, greatly reduces the processing procedures, greatly improves the feasibility of actual production and large-scale use, and has the characteristics of simple process, low production cost and high processing efficiency;
2. the invention can ensure the stable forming of the cross point in the process of stirring, rubbing and crossing the tunnel; the tunnel forming rule can be ensured in the basic tunnel forming process; the stacking height of the surface material of the processed plate can be basically unchanged in the height continuously variable tunnel forming process, and the tunnel forming is more regular and stable;
3. the invention has wide application range, can pertinently select the model size of the detachable stirring head according to the target plate, can perform targeted liquid cooling tunnel forming on different corresponding material plates in different fields, and can remarkably improve the effect on different fields and different heat dissipation requirements thereof.
Drawings
FIG. 1 is a schematic perspective view of a friction stir tunnel forming apparatus;
FIG. 2 is a front cross-sectional view of the friction stir tunnel forming apparatus;
FIG. 3 is an exploded schematic view of a friction stir tunnel forming apparatus.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the friction stir tunnel forming apparatus according to the present embodiment includes an upper rotating body 1, a transition portion 2, a disc spring portion 3, a positioning portion 4, an adapting portion 5, a shoulder portion 6, and a lower rotating body 7; transition portion 2 is coaxial the suit in the lower part of last rotator 1, and dish spring portion 3 and location portion 4 from top to bottom are coaxial suit in proper order in the outside of transition portion 2, and the upper surface of shaft shoulder 6 and the lower surface fixed connection of location portion 4, and the upper portion of lower rotator 7 passes shaft shoulder 6 from bottom to top and in the coaxial lower extreme that inserts upper rotator 1 of back, and the coaxial suit of switching portion 5 is on the upper portion of lower rotator 7, and switching portion 5 is located the upper portion of shaft shoulder 6.
The disc spring portion 3 in this embodiment is formed by stacking a plurality of disc springs in sequence. The dish spring portion 3 is used for meeting in the high-speed rotatory in-process of marcing of shaft shoulder 6 and piling up the material and receive the pressure transmission to make it take place elastic deformation and float upwards or shaft shoulder 6 and break away from behind the piling up material receive the pressure disappearance, and dish spring portion 3 resumes former state and continues to rotate jointly with shaft shoulder 6 and march.
The upper rotating body 1 is connected with main shafts of equipment such as a friction stir welding machine, a numerical control milling machine, a numerical control machining center and the like, and clamps and fixes the disc spring part 3 with the positioning part 4, and a cylindrical screw hole is formed in the lower part of the upper rotating body 1 and used for being connected with the lower rotating body 7; the transition part 2 is connected with the upper rotating body 1 and the disc spring part 3 so as to realize the relative rest of the disc spring part 3 and the stirring head in the high-speed rotating process; the disc spring part 3 is a part formed by connecting a plurality of disc springs in series or in parallel and arranged between the upper rotating body 1 and the positioning part 4 and outside the transition part 2, can elastically stretch and contract longitudinally under the action of pressure, and provides elastic support for the longitudinal movement of the positioning part 4 and the shaft shoulder part 6, so that the positioning part 4 and the shaft shoulder part 6 can be attached and floated along with the active or passive height change of the forming surface of the crossed tunnel; the positioning part 4 is used for clamping and fixing the disc spring part 3 together with the upper rotating body 1 and connecting the shaft shoulder part 6; the adapter part 5 is fixed at the bottom of the transition part 2 through a screw, does not float up and down, and is used for preventing the positioning part 4 and the shaft shoulder part 6 from falling off downwards due to the action of gravity in the advancing process; the shaft shoulder part 6 is connected with the positioning part 4 through screws, and both have detachable functions; the lower rotating body 7 is used for realizing rotary flow and upward suction of materials, so that preparation of a cross tunnel is realized, the upper portion of the lower rotating body 7 is of a cylindrical threaded structure and is used for being connected with the upper rotating body 1, the middle portion of the lower rotating body 7 is divided into a cylinder and a cuboid, the cylinder is used for connecting the shaft shoulder 6 with a switching ring, the cuboid is used for fixing the shaft shoulder 6 to enable the shaft shoulder 6 to be relatively static with a stirring head in a high-speed rotating process, the lower portion of the lower rotating body 7 is provided with a stirring pin with cylindrical threads, the screwing direction of the threads is the same as that of the upper portion of the lower rotating body 7, and the lower rotating body 7 is prevented from being separated from the upper rotating body 1 in the high-speed rotating process and realizing rotary flow and upward suction of the materials.
The outer diameter of the disc spring part 3 is 22.5-50mm, is equal to the outer diameter of the positioning part 4, the inner diameter of the disc spring is 11.2-25.4mm, is in clearance fit with the transition part 2, and has a clearance of 0.1-0.3mm with the outer side of the transition part 2; the total height of the disc spring part 3 in a relaxed state is 5 to 100mm.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 3, and the upper rotating body 1 of the friction stir tunnel forming device according to the present embodiment is formed by coaxially and fixedly connecting a clamping handle 101, an upper clamping portion 102, and a fixing portion 103 in sequence from top to bottom, and a cylindrical rotating screw hole 10301 for connecting with the lower rotating body 7 is provided on a lower end surface of the fixing portion 103.
The height of the fixing part 103 is the sum of the heights of the transition part 2 and the adapter part 5, and the outer diameter of the fixing part is 10-35mm; the cylindrical rotary screw hole 10301 is not smaller than the length of the upper thread of the lower rotary body 7, is 15-50mm,
other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 3, the transition portion 2 of the friction stir tunnel forming apparatus according to the present embodiment is a prism body with a regular polygon cross section, the lower end surface of the transition portion 2 is provided with a first cylindrical hole 201 penetrating vertically, the lower end surface of the transition portion 2 is provided with at least one set of first screw holes 202 arranged in central symmetry, and the first screw holes 202 are used for inserting screws and coaxially and fixedly connecting with the adapter portion 5.
The first cylindrical hole 201 is in clearance fit with the outer surface of the fixing portion 103 of the upper rotating body 1, the edge of the outer side of the transition portion 2 is in clearance fit with the inner side cylindrical surface of the disc spring portion 3, and the transition portion 2 is used for traction transmission to enable the disc spring portion 3 and the upper rotating body 1 to rotate at a high speed together in a relatively static state.
The inner diameter of the first cylindrical hole 201 is 11-25mm, the first cylindrical hole is in clearance fit with the outer side of a lower cylinder of the upper rotating body 1, the outer diameter of the transition part 2 is 22-50mm, the transition part is in clearance fit with the inner side of the disc spring part 3, and the height of the transition part 2 is the sum of the total height of the disc spring part 3 and the height of the lower clamping part.
Other components and connections are the same as those in the first embodiment.
The fourth concrete implementation mode: referring to fig. 1 to 3, the positioning portion 4 of the friction stir tunnel forming device according to the present embodiment is composed of a circular lower clamping portion 401, and the lower surface of the lower clamping portion 401 is provided with at least one set of second screw holes 402 arranged in a central symmetry manner, the second screw holes 402 are used for inserting screws to be fixedly connected with the upper surface of the shaft shoulder portion 6, and the disc spring portion 3 is clamped between the upper surface of the lower clamping portion 401 and the lower surface of the upper clamping portion 102.
The lower clamping portion 401 is used for clamping the disc spring portion 3 together with the upper clamping portion 102 of the upper rotating body 1 to provide an elastic supporting surface for the disc spring portion 3, and transmitting the pressure applied to the shaft shoulder portion 6 to the disc spring portion 3.
The inner diameter of the positioning part 4 is the same as that of the disc spring part 3, and a gap of 0.1-0.3mm is formed between the positioning part 4 and the outer side of the transition part 2, and the positioning part 4 is in clearance fit with the transition part 2; the positioning part 4 upwards extrudes the disc spring after receiving the pressure transmitted by the shaft shoulder part 6, so that the disc spring generates elastic deformation; the positioning portion 4 has the same outer diameter as the disc spring portion 3, and has a plurality of second screw holes 402 formed therein with the central axis as the axis center to be symmetrical with respect to the shaft shoulder 6.
Other components and connection relationships are the same as those in the first or second embodiment.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 3, the middle of the adaptor portion 5 of the friction stir tunnel forming apparatus according to the present embodiment is provided with a through hole 501 for passing the upper portion of the lower rotating body 7, the upper surface of the adaptor portion 5 is provided with at least one set of third screw holes 502 symmetrically arranged in the center, and the third screw holes 502 are used for inserting screws to be fixedly connected with the transition portion 2.
The adapter part 5 is fixed with the transition part 2 and clamps the positioning part together with the disc spring part 3 to prevent the positioning part 4 and the shaft shoulder part 6 from falling off downwards due to the action of gravity in the advancing process.
A gap of 0.1-0.2mm is formed between the inner wall of the through hole 501 and the outer side of the lower cylinder of the upper rotating body 1, and the adapter part 5 is in clearance fit with the lower cylinder of the upper rotating body 1; the distance between the outer diameter of the switching part 5 and the inner side of the upper half cylindrical hole of the shaft shoulder 6 is 0.1-0.2mm, the switching part 5 is in clearance fit with the upper half cylindrical hole of the shaft shoulder 6 and is 15-35mm, and a plurality of screw holes which are centrosymmetric and take the central shaft as the axis are formed for fixing with the transition part, so that the positioning part and the shaft shoulder are prevented from falling off downwards due to the action of gravity in the advancing process; the height of the adapter part 5 is 2-5mm.
Other components and connections are the same as those in the first embodiment.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 3, and the shaft shoulder portion 6 of the friction stir tunnel forming apparatus of the present embodiment includes a circular truncated cone portion 602 and a circular truncated cone portion 603; the circular truncated cone portion 602 and the circular truncated cone portion 603 are fixedly connected into a whole from top to bottom, a second cylindrical hole 60201 is arranged in the center of the upper surface of the circular truncated cone portion 602, a square hole 60301 is arranged in the center of the lower surface of the circular truncated cone portion 603, and the square hole 60301 is coaxial and communicated with the second cylindrical hole 60201.
The upper surface of the circular table part 602 is provided with a fourth screw hole 601, and the fourth screw hole 601 is fixedly connected with the second screw hole 402 through a screw; the second cylindrical hole 60201 is in clearance fit with the outer side of the cylindrical part 702 of the lower rotating body 7; the square hole 60301 is in clearance fit with the outer side of the rectangular body 703 of the lower rotating body 7;
when the friction stir cross tunnel is formed, when the fillet at the bottom of the shaft shoulder part 6 contacts the material 8 accumulated at the top of the first friction stir tunnel forming of the plate in the high-speed rotating and advancing process, the pressure is transmitted to the disc spring part 3 through the positioning part 4 due to the received pressure, so that the disc spring part 3 is elastically deformed and upwards contracted to drive the positioning part 4 and the shaft shoulder part 6 to upwards float together, when the shaft shoulder part 6 floats to the top of the accumulated material 8, the floating is stopped due to no pressure, and no material exists in the tunnel 9 formed by the first friction stir tunnel forming, so that when the stirring needle part 704 passes through the region with the sinking height of the first friction stir tunnel forming, no material is continuously sucked upwards, the height of the material accumulation part 8 is not changed or the total volume is not changed, and when the stirring needle part 704 continuously moves until the fillet at the bottom of the shaft shoulder part 6 completely separates from the material 8, the shaft shoulder part 6 is not pressed, the disc spring part 3 is restored to the original state, and the whole continuously advances in a state before the intersection to solve the problem that the intersection is difficult to form stably; when the basic tunnel forming by friction stir is performed, the traveling state of the stirring pin part 704 is controlled by setting data such as the initial position, the sinking depth, the traveling speed, the rotating speed, the ending position and the like of the stirring pin part 704; in the process of moving the stirring pin part 704, as the surface of the stirring pin is provided with threads, materials are upwards sucked and accumulated to the top of the plate, and meanwhile, a tunnel is formed in the moving direction of the stirring pin part 704 in the plate, and the tunnel can be used for introducing cooling liquid such as water and the like to stably and efficiently radiate heat of parts to be radiated; when the stirring friction height continuously variable tunnel forming is performed, the moving state of the stirring pin part 704 is controlled by setting data such as the initial position, the sinking depth, the moving speed, the rotating speed, the ending position and the like of the stirring pin part 704; and the height of the stirring pin part 704 can be actively adjusted in the advancing process of the stirring pin part 704, so that the lower rotating body 7, the switching part 5 and the upper rotating body 1 can move up and down together, meanwhile, as the disc spring part 3 has elasticity, the disc spring part 3 drives the positioning part 4 and the shaft shoulder part 6 to do not move longitudinally relative to the surface of the plate, namely, the lower surface of the shaft shoulder part 6 is always attached to the surface of the plate, and the stirring pin part 704 can move up and down, so that the capacity of preparing a tunnel with continuously variable height and stable forming is realized.
The bottom of the shaft shoulder part 6 is provided with a fillet so that the shaft shoulder part can smoothly float up and down when meeting accumulated materials in the advancing process, and the problem of unstable forming of the stirring friction cross tunnel is avoided; a square hole 60301 is formed in the center of a round table with a round corner at the bottom of the shaft shoulder part 6, the side length of the square hole 60301 is 5-15mm, and the square hole 60301 is in clearance fit with the lower rotating body 7, so that the shaft shoulder part 6 and the stirring head part do not rotate relatively in the high-speed rotating process; the middle of the shaft shoulder part 6 is provided with a second cylindrical hole 60201, the depth is properly deeper than the sum of the height of the middle cylinder of the lower rotating body 7 and the height of the adapter part 5, the sum is 17-50mm, and a space is provided for the shaft shoulder to float up and down.
Other components and connections are the same as those in the first embodiment.
The seventh embodiment: the present embodiment is described with reference to fig. 1 to 3, and the lower rotating body 7 of the friction stir tunnel forming apparatus according to the present embodiment is formed by coaxially and fixedly connecting a fixing portion 701, a cylindrical portion 702, a rectangular portion 703, and a stirring pin portion 704 in this order from top to bottom, wherein the outer wall of the fixing portion 701 is provided with a screw thread that is engaged with the cylindrical rotating screw hole 10301, and the outer wall of the stirring pin portion 704 is provided with a screw thread.
The cylindrical part 702 is in clearance fit with the bottom surface of the adapter part 5; the rectangular parallelepiped portion 703 is clearance fitted inside the square hole 60301 of the rounded circular table portion 603 of the shoulder portion 6, so that the shoulder portion 6 and the pin portion 704 can be kept relatively stationary during high-speed rotational travel without relative rotation.
The outer diameter of the cylindrical part 702 is 18-42mm, the height of the cylindrical part 702 is shorter than the depth of the hollow cylindrical hole at the upper half part of the shaft shoulder part 6, and is 7.5-22mm, so that the shaft shoulder part 6 can float up and down conveniently; the bottom surface of the cuboid portion 703 is square, the side length of the cuboid portion 703 is 0.1-0.2mm away from the inner side of a square hole 60301 on the lower portion of the shaft shoulder portion 6, clearance fit is formed, the shaft shoulder portion 6 and the lower rotating body 7 can be kept relatively static in the integral high-speed rotating process conveniently, the height of the cuboid portion 703 is 5-13mm, a gap is formed between a cylinder in the middle of the lower rotating body 7 and the upper surface of a round table of a round corner on the lower portion of the disc spring portion 3, and the shaft shoulder portion 6 can conveniently float upwards together with the disc spring portion 3 when meeting pressure of stacked materials in the advancing process. The lower part of the lower rotator 7 is provided with a stirring pin part 704 with screw threads, and the screw thread direction of the stirring pin part 704 is the same as that of the upper part of the lower rotator 7, so that the lower rotator 7 and the bottom of the upper rotator 1 are prevented from being connected loosely in the high-speed rotation process.
Other components and connection relationships are the same as those in the first or second embodiment.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 3, and the friction stir tunnel forming method according to the present embodiment is implemented by the following steps:
step one, fixedly connecting an upper rotating body 1 with a main shaft of machining equipment;
setting the initial position, sinking depth, traveling speed, moving speed and ending position of the stirring pin part 704 of the lower rotating body 7;
step three, starting the mechanical processing equipment to enable the stirring pin part 704 of the lower rotating body 7 to advance according to the data set in the step two;
step four, in the process of the stirring pin part 704 moving, because the surface of the stirring pin part 704 is provided with threads, the material is sucked upwards and accumulated to the top of the plate, and a tunnel is formed in the moving direction of the stirring pin part 704 in the plate;
and step five, introducing cooling liquid into the tunnel formed in the step four, and radiating the part to be radiated.
The machining equipment in the embodiment refers to mechanical machining equipment such as a friction stir welding machine, a numerical control milling machine, a numerical control machining center and the like.
The specific implementation method nine: the present embodiment is described with reference to fig. 1 to 3, and the friction stir tunnel forming method according to the present embodiment is implemented by the following steps:
step one, after the first friction stir tunnel forming is carried out, when the cross tunnel forming is carried out again, the stirring pin part 704 moves to a preset position and sinks to a preset depth;
step two, when the top materials formed by the first friction stir tunnel are accumulated in the advancing process of the cross tunnel forming, the shaft shoulder part 6 is stressed when contacting with the accumulated convex materials in the high-speed rotating and advancing process and transmits the pressure to the disc spring part 3, so that the disc spring part 3 is stretched, and the shaft shoulder part 6 and the disc spring part are stretched together;
and step three, the stirring pin part 704 fixed with the upper rotating body 1 cannot float up and down and continues to advance along a preset track, and the shaft shoulder part 6 respectively extends and floats up and down passively when contacting and separating stacked materials, so that the problem of unstable cross tunnel formation caused by direct large-area interference contact of the shaft shoulder part 6 and the stacked materials is solved.
The detailed implementation mode is ten: the present embodiment is described with reference to fig. 1 to 3, and the friction stir tunnel forming method according to the present embodiment is implemented by the following steps:
step one, setting an initial position, a sinking depth, a traveling speed, a rotating speed and a terminating position of a stirring pin part 704;
step two, the lower rotating body 7, the adapting part 5 and the upper rotating body 1 move up and down together by adjusting the height of the stirring needle part 704 in the process of moving the stirring needle part 704;
and step three, because the disc spring part 3 has elasticity, the disc spring part 3 drives the positioning part 4 and the shaft shoulder part 6 not to longitudinally move relative to the surface of the plate, namely, the lower surface of the shaft shoulder part 6 is always attached to the surface of the plate, and the stirring needle part 704 actively moves up and down, so that the capacity of preparing the tunnel with continuously variable height and stable forming is realized.
Principle of operation
After the friction stir tunnel is formed for the first time, when the cross tunnel is formed again, the stirring head moves to a preset position and sinks to a preset depth, when the top material formed by the friction stir tunnel for the first time is accumulated in the moving process of the cross tunnel, the shaft shoulder part is in contact with the accumulated protruding material in the high-speed rotating and moving process, receives pressure and transmits the pressure to the disc spring part, so that the disc spring part is stretched, and the shaft shoulder part is connected with the disc spring part to be stretched up and down together. Simultaneously with the fixed stirring pin of last rotation body can not take place to fluctuate, continue to advance along predetermineeing the track, the shaft shoulder takes place passive flexible the floating from top to bottom respectively when contacting and piling up the material and breaking away from and pile up the material to the unstable problem of alternately tunnel formation that the direct large tracts of land interference contact of shaft shoulder and piling up the material arouses has been avoided.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a friction stir tunnel forming device which characterized in that: the friction stir tunnel forming device comprises an upper rotating body (1), a transition part (2), a disc spring part (3), a positioning part (4), a switching part (5), a shaft shoulder part (6) and a lower rotating body (7); transition portion (2) coaxial suit is in the lower part of last rotation body (1), dish spring portion (3) and location portion (4) from top to bottom in proper order coaxial suit is in the outside of transition portion (2), the upper surface of shaft shoulder (6) and the lower surface fixed connection of location portion (4), the upper portion of lower rotation body (7) is passed shaft shoulder (6) from bottom to top and is coaxial to be inserted in the lower extreme of last rotation body (1) after, the coaxial suit of switching portion (5) is on the upper portion of lower rotation body (7), and switching portion (5) are located the upper portion of shaft shoulder (6).
2. A friction stir tunnel forming apparatus as recited in claim 1 wherein: the upper rotating body (1) is formed by sequentially and coaxially fixedly connecting a clamping handle (101), an upper clamping part (102) and a fixing part (103) from top to bottom, and a cylindrical rotating screw hole (10301) for connecting with the lower rotating body (7) is formed in the lower end face of the fixing part (103).
3. A friction stir tunnel forming apparatus as recited in claim 1 wherein: the cross section of the transition part (2) is a regular polygonal prism, the lower end face of the transition part (2) is provided with a first cylindrical hole (201) which penetrates through the transition part from top to bottom, the lower end face of the transition part (2) is provided with at least one group of first screw holes (202) which are arranged in a centrosymmetric manner, and the first screw holes (202) are used for inserting screws and are coaxially and fixedly connected with the switching part (5).
4. A friction stir tunnel forming apparatus as defined in claim 1 or claim 2 wherein: the positioning portion (4) is composed of a lower clamping portion (401) in a circular ring shape, at least one group of second screw holes (402) which are arranged in a central symmetry mode is formed in the lower surface of the lower clamping portion (401), the second screw holes (402) are used for being inserted into screws and fixedly connected with the upper surface of the shaft shoulder portion (6), and the disc spring portion (3) is clamped between the upper surface of the lower clamping portion (401) and the lower surface of the upper clamping portion (102).
5. A friction stir tunnel forming apparatus as recited in claim 1 wherein: the middle part of the switching part (5) is provided with a through hole (501) for the upper part of the lower rotating body (7) to pass through, the upper surface of the switching part (5) is provided with at least one group of third screw holes (502) which are arranged in a centrosymmetric manner, and the third screw holes (502) are used for inserting screws and are fixedly connected with the transition part (2).
6. A friction stir tunnel forming apparatus as recited in claim 1 wherein: the shaft shoulder (6) comprises a circular truncated cone part (602) and a circular truncated cone part (603); the round table part (602) and the round table part (603) are fixedly connected into a whole from top to bottom, a second cylindrical hole (60201) is formed in the center of the upper surface of the round table part (602), a square hole (60301) is formed in the center of the lower surface of the round table part (603), and the square hole (60301) is coaxial and communicated with the second cylindrical hole (60201).
7. A friction stir tunnel forming apparatus as defined in claim 1 or claim 2 wherein: the lower rotating body (7) is formed by sequentially and coaxially fixedly connecting a fixing part (701), a cylindrical part (702), a rectangular part (703) and a stirring needle part (704) from top to bottom, the outer wall of the fixing part (701) is provided with threads matched with the cylindrical rotating screw hole (10301), and the outer wall of the stirring needle part (704) is provided with threads.
8. A method for forming a friction stir tunnel using the forming apparatus of claim 1, wherein: the friction stir tunnel forming method is realized by the following steps:
step one, fixedly connecting an upper rotating body (1) with a main shaft of machining equipment;
setting an initial position, a sinking depth, a traveling speed, a moving speed and a termination position of a stirring pin part (704) of the lower rotating body (7);
step three, starting the mechanical processing equipment to enable the stirring pin part (704) of the lower rotating body (7) to advance according to the data set in the step two;
step four, in the process of the stirring pin part (704) moving, because the surface of the stirring pin part (704) is provided with threads, the material is sucked upwards and accumulated to the top of the plate, and a tunnel is formed in the moving direction of the stirring pin part (704) in the plate;
and step five, introducing cooling liquid into the tunnel formed in the step four, and radiating the part to be radiated.
9. A method for forming a friction stir tunnel using the forming apparatus of claim 1, wherein: the friction stir tunnel forming method is realized by the following steps:
step one, after the first stirring friction tunnel forming is carried out, when the cross tunnel forming is carried out again, the stirring pin part (704) moves to a preset position and sinks to a preset depth;
step two, when the top materials formed by the first friction stir tunnel are accumulated in the advancing process of the cross tunnel forming, the shaft shoulder (6) is stressed when contacting with the accumulated convex materials in the high-speed rotation and advancing process and transmits the pressure to the disc spring part (3), so that the disc spring part (3) is stretched, and the shaft shoulder (6) is connected with the shaft shoulder to be stretched up and down together;
and step three, the stirring pin part (704) fixed with the upper rotating body (1) cannot float up and down, the stirring pin part continues to advance along a preset track, and the shaft shoulder part (6) respectively extends and floats up and down passively when contacting and separating stacked materials, so that the problem of unstable cross tunnel forming caused by direct large-area interference contact of the shaft shoulder part (6) and the stacked materials is avoided.
10. A method for forming a friction stir tunnel using the forming apparatus of claim 1, wherein: the friction stir tunnel forming method is realized by the following steps:
step one, setting an initial position, a sinking depth, a traveling speed, a rotating speed and a termination position of a stirring pin part (704);
secondly, the lower rotating body (7), the switching part (5) and the upper rotating body (1) move up and down together by adjusting the height of the stirring pin part (704) in the process of moving the stirring pin part (704);
and step three, the disc spring part (3) has elasticity, the disc spring part (3) drives the positioning part (4) and the shaft shoulder part (6) to not longitudinally move relative to the surface of the plate, namely, the lower surface of the shaft shoulder part (6) is always attached to the surface of the plate, and the stirring needle part (704) actively moves up and down, so that the capacity of preparing the tunnel with continuously variable height and stable forming is realized.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718366A (en) * | 1996-05-31 | 1998-02-17 | The Boeing Company | Friction stir welding tool for welding variable thickness workpieces |
| US5769306A (en) * | 1996-05-31 | 1998-06-23 | The Boeing Company | Weld root closure method for friction stir welds |
| CN101982284A (en) * | 2010-11-04 | 2011-03-02 | 哈尔滨工业大学 | Repair welding method and welding tool of stirring friction plug for friction preheating of telescopic shaft shoulder |
| CN102971108A (en) * | 2010-07-12 | 2013-03-13 | 日本轻金属株式会社 | Rotating tool for forming voids and void-formation method |
| JP2014240079A (en) * | 2013-06-11 | 2014-12-25 | 京浜ラムテック株式会社 | Internal space forming method, internal space forming device, and heat exchanger plate |
| CN205200794U (en) * | 2015-08-19 | 2016-05-04 | 长春工业大学 | Stirring head of biax shoulder for friction stir welding |
| CN107175401A (en) * | 2017-05-17 | 2017-09-19 | 北京世佳博科技发展有限公司 | Improve the flexible friction stir welding tool and welding method of production efficiency |
| US20190255647A1 (en) * | 2016-11-01 | 2019-08-22 | The Welding Institute | Method and apparatus for creating channels in workpieces |
| DE102019104134A1 (en) * | 2019-02-19 | 2020-08-20 | Nemak, S.A.B. De C.V. | Friction stir welding tool and method of making panels |
| CN214212572U (en) * | 2020-12-14 | 2021-09-17 | 苏州市哈工万洲自动化有限公司 | Welding tool and welding device for machining flow channel |
| CN214518156U (en) * | 2021-03-17 | 2021-10-29 | 长春工业大学 | Suspended type thick plate double-shaft-shoulder friction stir welding device |
-
2022
- 2022-11-04 CN CN202211373851.1A patent/CN115647562B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718366A (en) * | 1996-05-31 | 1998-02-17 | The Boeing Company | Friction stir welding tool for welding variable thickness workpieces |
| US5769306A (en) * | 1996-05-31 | 1998-06-23 | The Boeing Company | Weld root closure method for friction stir welds |
| CN102971108A (en) * | 2010-07-12 | 2013-03-13 | 日本轻金属株式会社 | Rotating tool for forming voids and void-formation method |
| CN101982284A (en) * | 2010-11-04 | 2011-03-02 | 哈尔滨工业大学 | Repair welding method and welding tool of stirring friction plug for friction preheating of telescopic shaft shoulder |
| JP2014240079A (en) * | 2013-06-11 | 2014-12-25 | 京浜ラムテック株式会社 | Internal space forming method, internal space forming device, and heat exchanger plate |
| CN205200794U (en) * | 2015-08-19 | 2016-05-04 | 长春工业大学 | Stirring head of biax shoulder for friction stir welding |
| US20190255647A1 (en) * | 2016-11-01 | 2019-08-22 | The Welding Institute | Method and apparatus for creating channels in workpieces |
| CN107175401A (en) * | 2017-05-17 | 2017-09-19 | 北京世佳博科技发展有限公司 | Improve the flexible friction stir welding tool and welding method of production efficiency |
| DE102019104134A1 (en) * | 2019-02-19 | 2020-08-20 | Nemak, S.A.B. De C.V. | Friction stir welding tool and method of making panels |
| CN214212572U (en) * | 2020-12-14 | 2021-09-17 | 苏州市哈工万洲自动化有限公司 | Welding tool and welding device for machining flow channel |
| CN214518156U (en) * | 2021-03-17 | 2021-10-29 | 长春工业大学 | Suspended type thick plate double-shaft-shoulder friction stir welding device |
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