Friction welding device and welding process

Abstract

The present application discloses a friction welding device, which belongs to the field of friction welding technology. It mainly includes a welding table, which has a working surface; a moving mechanism; a right angle frame, on which a first cylinder is installed; a fixed disk, which is installed at the output end of the first cylinder; a rotating motor; a rotating disk; two groups of third cylinders, which are installed on the rotating disk; a second motor; a chuck body, the inner ring of the chuck body is provided with a first tooth pattern in an annular manner, and the surface of the chuck body is provided with a bevel gear block in an annular manner; three groups of jaws, on which a second tooth pattern is provided, the second tooth pattern is meshed with the first tooth pattern, and a friction head is clamped between the three groups of jaws; a first bevel gear, which is meshed with the bevel gear block. A friction welding device of the present application is convenient for replacing the friction head through the arrangement of the welding table, the moving mechanism, the friction welding mechanism, the rotating motor, the rotating disk, the third cylinder and the verification mechanism, thereby improving the efficiency of friction welding.

Description

Technical Field

[0001] The present application relates to the technical field of friction welding, and in particular to a friction welding device and a welding process. Background Art

[0002] As the performance of military electronic equipment improves, its heat generation also increases exponentially. To solve its heat dissipation problem, the generally available heat dissipation methods include natural cooling, air cooling and liquid cooling. Among them, side wall liquid cooling is a type of liquid cooling. The side wall liquid cooling chassis is mainly composed of side plates and upper and lower cold plates, and the sealing of the upper and lower cold plates themselves is the key technology of side wall liquid cooling;

[0003] The cold plate is mainly composed of a liquid cooling plate and a welding cover plate, and the welding cover plate and the liquid cooling plate are firstly welded together by vacuum brazing, and then the weld between the liquid cooling plate and the welding cover plate is secondary welded by friction stir welding to increase the connection firmness of the liquid cooling plate and the welding cover plate;

[0004] Friction stir welding refers to the use of the heat generated by the friction between the high-speed rotating stirring head and the workpiece to partially melt the material to be welded. When the stirring head moves forward along the welding interface, the plasticized material flows from the front to the back of the stirring head under the action of the rotating friction force of the stirring head, and forms a dense solid phase weld under the extrusion of the stirring head.

[0005] When performing friction stir welding on the welding cover plate and the liquid cooling plate, the stirring head needs to rub against the welding cover plate and the liquid cooling plate to generate heat to partially melt the welded material and form a dense solid phase weld under the movement and extrusion of the stirring head. However, when the stirring head is in an environment with relative movement, long-term friction with the welding cover plate and the liquid cooling plate will cause the surface material to gradually wear. When the wear amount does not reach the critical value, it can still be used, but there will be a certain deviation from the stirring head in the initial state, which will affect the movement accuracy and welding effect. At this time, it is generally improved by re-zeroing the program or manually re-clamping the stirring head by the staff. The above-mentioned remedial methods will increase the extra workload, thereby affecting the efficiency of friction stir welding. Therefore, it is necessary to provide a friction welding device and welding process to solve the above-mentioned problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide a friction welding device and a welding process, so as to facilitate the replacement of the worn friction head and improve the friction welding efficiency.

[0008] The technical solution adopted by the present application to solve its technical problems is: a friction welding device and a welding process, including a welding table, which has a working surface; a moving mechanism, which is installed on the working surface, and the moving mechanism is used to realize movement in the X-axis and Y-axis directions; a right-angle frame, which is installed on the moving mechanism, and a first cylinder is installed on the right-angle frame; a fixed disk, which is installed on the output end of the first cylinder; a rotating motor, which is installed on the fixed disk, and the output end of the rotating motor moves through the fixed disk; a rotating disk, which is installed on the output end of the rotating motor; two groups of third cylinders, which are installed on the rotating disk; a second motor, which is installed on the telescopic end of the third cylinder; a fixed sleeve, which is installed on the output end of the second motor, and the fixed sleeve is a hollow structure; a chuck body, which is engaged with the fixed The bottom of the sleeve, the chuck body is hollow, the inner ring of the chuck body is annularly provided with a first tooth pattern, and the surface of the chuck body is annularly provided with a bevel tooth block; three groups of jaws, which are movably inserted into the chuck body, and the top ends of the three groups of jaws are spliced ​​to form an annular step, the diameter of the annular step is adapted to the inner cavity diameter of the fixed sleeve, and the side of the jaws close to the inner ring of the chuck body is provided with a second tooth pattern, the second tooth pattern is meshed with the first tooth pattern, and a friction head is clamped between the three groups of jaws, and the friction head extends into the fixed sleeve; a first bevel gear, the first bevel gear bearing is installed on the chuck body, and the first bevel gear is meshed with the bevel tooth block; wherein: the first bevel gear is suitable for rotation, and the chuck body is suitable for synchronous rotation, so as to drive the three groups of jaws to move up and down, so that one end of the three groups of jaws approaches or moves away from each other, so as to clamp or loosen the friction head.

[0009] Furthermore, a group of the third cylinder, the second motor and the friction head constitute a stirring friction group, the stirring friction group on the right side is defined as a first stirring friction group, and the stirring friction group on the left side is defined as a second stirring friction group.

[0010] Furthermore, a verification mechanism is installed on the second motor, and the verification mechanism includes a fifth cylinder installed on the side of the fixed plate, and a verification plate is installed at the telescopic end of the fifth cylinder, and the verification plate has two groups of extended ends, and a support plate is arranged between the two groups of extended ends.

[0011] Furthermore, a through hole is provided on the support plate, a third spring is installed on the bottom surface of the support plate, a bottom support plate is installed on one end of the third spring, the width of the bottom support plate is greater than the width of the support plate, there is a certain gap between the bottom support plate and the support plate, and a groove is provided on the bottom support plate.

[0012] Furthermore, a pillar is installed on the fixed disk, and the pillar movably passes through the rotating disk. A fourth cylinder is installed at one end of the pillar, and a Y-shaped rod is installed at the output end of the fourth cylinder. The Y-shaped rod has a protruding end, and an open groove is provided on the side close to each other of the two groups of protruding ends. A first spring is arranged inside the open groove, and a conical rod is installed at one end of the first spring.

[0013] Furthermore, a mounting seat is installed on the second motor, and two groups of vertical rods are movably inserted on the mounting seat, and one end of the two groups of vertical rods is connected to a support rod, and a second spring is sleeved on the vertical rod, and one end of the second spring is connected to the bottom surface of the mounting seat, and the other end of the second spring is connected to the top surface of the support rod;

[0014] The support rod is provided with a first rack having a first smooth section. The first bevel gear has a central axis. The central axis is provided with a first gear. The first gear is located at the position of the first smooth section in an initial state.

[0015] Furthermore, a base is installed on the bottom surface of the support plate, and the base has a first clamping plate. A protrusion is installed on the base near one end, a second screw rod is installed on the bearing of the protrusion, the other end of the second screw rod is connected to the first clamping plate bearing, a second clamping plate is threadedly connected to the second screw rod, and a convex ball is installed on one end of the first rack.

[0016] Furthermore, a through groove is provided on the support plate, a through groove is provided on the support plate, a second rack is movably passed through the through groove, a second gear is installed at one end of the second screw rod, the second rack has a second smooth section, and the second gear is located at the position of the second smooth section in the initial state.

[0017] Furthermore, the second rack has side blocks on both sides, side slots are connected on both sides of the through slot, a fourth spring is provided at the top end of the inner wall of the side slot, one end of the fourth spring is connected to the top surface of the side block, one end of the second rack is at a certain distance from the bottom support plate, a limiting plate is installed on the first rack, and the side blocks on both sides of the second rack are at a certain distance from the bottom end of the side slot.

[0018] Furthermore, in the first step, the liquid cooling plate is clamped by a clamping block, and then the welding cover plate and the liquid cooling plate are welded together by vacuum brazing, and then the moving mechanism is started to drive the friction head to move in the X-axis and Y-axis directions, and the first cylinder is started to drive the friction head to move down a specified distance, and friction welding is performed along the weld between the welding cover plate and the liquid cooling plate;

[0019] The second step is to start the first cylinder to drive the fixed plate to move up, then start the rotating motor to drive the rotating plate to rotate, and then start the third cylinder of the first stirring friction group to reset, and at the same time, the third cylinder of the second stirring friction group drives the friction head to move down, so as to perform friction welding through the friction head of the second stirring friction group.

[0020] The beneficial effect of the present application is that the present application provides a friction welding device and a welding process, which facilitates the replacement of the friction head after long-term use and improves the friction welding efficiency through the arrangement of a welding table, a moving mechanism, a friction welding mechanism, a rotating motor, a rotating disk, a third cylinder and a calibration mechanism.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 It is an overall schematic diagram of a friction welding device and welding process in this application;

[0024] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0025] Figure 3 for Figure 2 Schematic diagram of the friction welding mechanism structure;

[0026] Figure 4 for Figure 3 Schematic diagram of the verification mechanism structure in FIG.

[0027] Figure 5 for Figure 4 A magnified schematic diagram of region A;

[0028] Figure 6 for Figure 4 Schematic diagram of the structure of the middle check plate;

[0029] Figure 7 for Figure 6 A magnified schematic diagram of area B;

[0030] Figure 8 for Figure 4 A schematic diagram of the structure of the first rack and the first gear;

[0031] Fig. 9 for Figure 8Schematic diagram of the enlarged C region;

[0032] Fig.10 It is a schematic diagram of the side wall liquid cooling chassis structure;

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Welding table; 101. Working surface;

[0035] 2. Moving mechanism; 201. Placing table; 203. Clamping block; 204. First linear module; 205. First motor; 206. First screw rod; 208. First sliding seat; 209. Support column; 210. Second linear module;

[0036] 3. Friction welding mechanism; 301. Right angle frame; 302. First cylinder; 303. Fixed plate; 304. Second motor; 305. Friction head; 306. Fixed sleeve; 307. Chuck body; 308. First tooth pattern; 309. Tooth block; 310. Clamping claw; 311. Second tooth pattern; 313. First bevel gear;

[0037] 4. Replacement mechanism; 401. Rotating motor; 402. Rotating disk; 403. Third cylinder;

[0038] 5. Verification mechanism; 501. Pillar; 502. Fourth cylinder; 503. Y-shaped rod; 504. Open slot; 505. First spring; 506. Tapered rod; 507. First gear; 508. Mounting seat; 509. Support rod; 510. Second spring; 511. Vertical rod; 512. First rack; 513. Limiting plate; 514. Protruding ball; 516. Fifth cylinder; 517. Verification plate; 519. Support plate; 520. Through slot; 521. Side slot; 522. Through slot; 523. Third spring; 524. Bottom support plate; 525. Groove; 526. Second rack; 527. Fourth spring; 528. Base; 529. First clamping plate; 530. Protrusion; 531. Second screw rod; 532. Second gear; 533. Second clamping plate;

[0039] 6. Cold plate; 601. Liquid cooling plate; 602. Welding cover plate;

[0040] 7. Side panels. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0043] like Fig.10 As shown, with the improvement of the performance of military electronic equipment, its heat generation has also increased exponentially. To solve its heat dissipation problem, generally available heat dissipation methods include natural cooling, air cooling and liquid cooling. Among them, side wall liquid cooling is a kind of liquid cooling. The side wall liquid cooling chassis is mainly composed of side plates 7 and upper and lower cold plates 6, wherein the cold plate 6 is mainly composed of a welded cover plate 602 and a liquid cooling plate 601, and the sealing of the upper and lower cold plates 6 themselves is the key technology of side wall liquid cooling.

[0044] Embodiment 1: Figure 1-Figure 3 As shown, the present application provides a friction welding device and a welding process, including a welding table 1, the welding table 1 having a working surface 101, and a moving mechanism 2 installed on the working surface 101, the moving mechanism 2 including a placement table 201 fixedly installed on the working surface 101, the placement table 201 is used to place a welding cover plate 602 and a liquid cooling plate 601 to be welded;

[0045] Two sets of first linear modules 204 are installed on the working surface 101. The first linear modules 204 include two sets of vertical plates (not shown in the figure) fixedly installed on the working surface 101. Figure 2 For example, the vertical board on the left is defined as the first vertical board, and the vertical board on the right is defined as the second vertical board;

[0046] A first motor 205 is fixedly mounted on the second vertical plate, a first screw rod 206 is fixedly mounted on the output end of the first motor 205, one end of the first screw rod 206 is connected to the second vertical plate bearing, and a first sliding seat 208 is threadedly connected to the first screw rod 206, the first screw rod 206 is suitable for rotating with the output end of the first motor 205, so as to drive the first sliding seat 208 to move linearly on the first screw rod 206, so as to realize the movement in the Y-axis direction;

[0047] A support column 209 is fixedly mounted on the first sliding seat 208, and a second linear module 210 is connected between the two groups of support columns 209. The second linear module 210 and the first linear module 204 have similar structures. The second linear module 210 is suitable for realizing movement in the X-axis direction. In this embodiment, the second linear module 210 has a second sliding seat similar to the first sliding seat 208;

[0048] Meanwhile, a friction welding mechanism 3 is fixedly mounted on the second sliding seat, and the friction welding mechanism 3 is used to weld the weld between the welding cover plate 602 and the liquid cooling plate 601, and the friction welding mechanism 3 includes a right angle frame 301 fixedly mounted on the second sliding seat, a first cylinder 302 is fixedly mounted on the right angle frame 301, and a fixed plate 303 is fixedly mounted at the output end of the first cylinder 302, and a second motor 304 is fixedly mounted on the fixed plate 303 on a side close to the placement table 201, and a friction head 305 is mounted at the output end of the second motor 304, and the friction head 305 is suitable for high-speed operation with the output end of the second motor 304 to weld the weld between the welding cover plate 602 and the liquid cooling plate 601;

[0049] In summary: by placing the liquid cooling plate on the placement table 201, clamping the liquid cooling plate by the clamping block 203, and then placing the welding cover plate 602 on the liquid cooling plate 601, and first welding the welding cover plate 602 and the liquid cooling plate 601 together by vacuum brazing, and then starting the first linear module 204 and the second linear module 210 to drive the friction head 305 to move in the X-axis and Y-axis directions, and starting the first cylinder 302 to drive the friction head 305 to move down a specified distance, so that the friction head 305 stirs friction welding along the weld between the welding cover plate 602 and the liquid cooling plate 601.

[0050] Embodiment 2: Due to the long-term friction between the friction head 305 and the welding cover plate 602 and the liquid cooling plate 601, the surface material will be gradually worn away, thereby affecting the motion accuracy;

[0051] In order to solve the above problems, Figure 3 As shown, different from the above embodiment, a replacement mechanism 4 is installed on the fixed disk 303, and the replacement mechanism 4 includes a rotating motor 401 fixedly installed on the fixed disk 303, and the output end of the rotating motor 401 movably penetrates the fixed disk 303, and a rotating disk 402 is fixedly installed at the output end of the rotating motor 401, and the rotating disk 402 is closely arranged on a side of the fixed disk 303 close to the placement table 201;

[0052] Two sets of third cylinders 403 are fixedly mounted on the rotating disk 402, and the second motor 304 is no longer mounted on the fixed disk 303, but is mounted on the output end of the third cylinder 403. The second motor 304 is provided with two sets, and a set of the third cylinder 403, the second motor 304 and the friction head 305 are combined into a stirring friction group;

[0053] It should be noted that: Figure 3For example, the stirring friction group on the right is defined as the first stirring friction group, and the stirring friction group on the left is defined as the second stirring friction group, and in the initial state, the first stirring friction group is in a working state, that is, the third cylinder 403 and the second motor 304 included in the first stirring friction group are both in a starting state, so that the distance between the first stirring friction group and the placement table 201 is smaller than the distance between the second stirring friction group and the placement table 201;

[0054] In summary: when in use, the first cylinder 302 is started to drive the fixed plate 303 to move downward, and the fixed plate 303 drives the first stir friction group and the second stir friction group to move downward a specified distance, so that the friction head 305 of the first stir friction group approaches and contacts the gap between the welding cover plate 602 and the liquid cooling plate 601, and the first linear module 204 and the second linear module 210 are synchronously started to drive the friction head 305 to move in the X-axis and Y-axis directions, and stir friction welding is performed along the weld between the welding cover plate 602 and the liquid cooling plate 601;

[0055] When the friction head 305 of the first stirring friction group is worn out after long-term use and needs to be replaced, the first cylinder 302 is first started to drive the fixed disk 303 to move upward, and then the rotating motor 401 is started to drive the rotating disk 402 to rotate 180 degrees, and then the third cylinder 403 of the first stirring friction group is started to reset it, and the third cylinder 403 of the second stirring friction group is simultaneously started to drive the friction head 305 to move downward, so that the friction head 305 of the second stirring friction group can be friction welded.

[0056] Embodiment 3: Although the above embodiment provides two sets of friction heads 305 and replaces one set of friction heads 305 after it is worn out, it is necessary to disassemble and replace the friction heads 305 when both sets of friction heads 305 are worn out;

[0057] In order to solve the above problems, Figure 4-Figure 5 As shown, different from the above embodiment, a fixing sleeve 306 is fixedly installed at the output end of the second motor 304, and the fixing sleeve 306 is a hollow structure, and a chuck body 307 is fixedly engaged at the bottom of the fixing sleeve 306, and the chuck body 307 is hollow, and the inner ring of the chuck body 307 is annularly provided with a first tooth pattern 308, and a bevel tooth block 309 is annularly provided on the surface of the chuck body 307;

[0058] Three groups of jaws 310 are movably inserted in the chuck body 307. The top ends of the three groups of jaws 310 are spliced ​​to form a circular step. The diameter of the circular step is adapted to the inner diameter of the fixed sleeve 306. Second tooth patterns 311 are provided on one side of the three groups of jaws 310 close to the inner circle of the chuck body 307. The second tooth patterns 311 are meshed with the first tooth patterns 308. A friction head 305 is clamped between the three groups of jaws 310, and the friction head 305 extends into the fixed sleeve 306.

[0059] At the same time, a first bevel gear 313 is mounted on the chuck body 307 in a bearing, and the first bevel gear 313 is meshed with the bevel gear block 309, so that the first bevel gear 313 is suitable for rotating to drive the chuck body 307 to rotate, and is suitable for driving the three groups of jaws 310 to move in the direction of the second motor 304, so that one ends of the three groups of jaws 310 are away from each other, so as to loosen the friction head 305;

[0060] Thus, the first bevel gear 313 is suitable for reverse rotation to drive the chuck body 307 to rotate, and is suitable for driving the three sets of clamping jaws 310 to move in a direction away from the second motor 304, so that one end of the three sets of clamping jaws 310 gradually extends out of the chuck body 307 and approaches each other to clamp the friction head 305;

[0061] like Figure 4-Figure 9 As shown, a verification mechanism 5 is installed on the second motor 304, and the verification mechanism 5 is used to verify the worn friction head 305 so that the worn friction head 305 maintains the initial position, and the verification mechanism 5 includes a fifth cylinder 516 fixedly installed on the side of the fixed plate 303, and a verification plate 517 is fixedly installed at the telescopic end of the fifth cylinder 516, and the verification plate 517 has two groups of extension ends, and a support plate 519 is fixedly arranged between the two groups of extension ends;

[0062] A through hole (not shown in the figure) is formed on the support plate 519, which is suitable for the friction head 305 to pass through. A third spring 523 is fixedly installed on the bottom surface of the support plate 519, and a bottom support plate 524 is fixedly installed on one end of the third spring 523. The width of the bottom support plate 524 is greater than the width of the support plate 519, and there is a certain gap between the bottom support plate 524 and the support plate 519. A groove 525 is formed on the bottom support plate 524, and the groove 525 is used to support the friction head 305.

[0063] The support plate 519 is adapted to move up and down along with the telescopic end of the fifth cylinder 516 to drive the bottom support plate 524 to move synchronously;

[0064] like Figure 4As shown, a support 501 is fixedly mounted on the fixed disk 303, and the support 501 movably penetrates the rotating disk 402, and a fourth cylinder 502 is fixedly mounted on one end of the support 501, and a Y-shaped rod 503 is fixedly mounted on the output end of the fourth cylinder 502, and the Y-shaped rod 503 has a protruding end, and an open groove 504 is opened on a side close to each other on two sets of protruding ends, and a first spring 505 is arranged inside the open groove 504, and a tapered rod 506 is fixedly mounted on one end of the first spring 505;

[0065] The Y-shaped rod 503 is adapted to move along with the output end of the fourth cylinder 502, so that the two groups of tapered rods 506 are located at the lower end of the bottom supporting plate 524, and are adapted to restrict the bottom supporting plate 524 from moving to a specified position, and the tapered rods 506 are adapted to be squeezed by the bottom supporting plate 524, so as to squeeze the first spring 505 and extend into the open slot 504;

[0066] Meanwhile, a mounting seat 508 is fixedly mounted on the second motor 304, and two groups of vertical rods 511 are movably inserted on the mounting seat 508, and one end of the two groups of vertical rods 511 is connected to a support rod 509, and a second spring 510 is sleeved on the vertical rod 511, one end of the second spring 510 is connected to the bottom surface of the mounting seat 508, and the other end of the second spring 510 is connected to the top surface of the support rod 509, and the second spring 510 is used to support the support rod 509;

[0067] like Figure 4-Figure 5 and Figure 8 As shown, a first rack 512 is fixedly mounted on the support rod 509, and the first rack 512 has a first smooth section (such as Figure 8 ), and the first bevel gear 313 has a central axis (not shown in the figure), and a first gear 507 is fixedly mounted on the central axis. The first gear 507 is initially located at the position of the first smooth section, and the first rack 512 is suitable for moving up and down to drive the first gear 507 to rotate, which is suitable for driving one end of the three sets of clamping jaws 310 to move closer or farther away;

[0068] like Figure 6-Figure 9 As shown, a base 528 is fixedly installed on the bottom surface of the support plate 519, and the base 528 has a first clamping plate 529, and a protrusion 530 is fixedly installed near one end of the base 528, and a second screw rod 531 is bearing-mounted on the protrusion 530, and the other end of the second screw rod 531 is bearing-connected with the first clamping plate 529, and a second clamping plate 533 is threadedly connected to the second screw rod 531;

[0069] The second clamping plate 533 is adapted to move closer to or farther from the first clamping plate 529 as the second screw rod 531 rotates. At the same time, a convex ball 514 is fixedly mounted on one end of the first rack 512 (see Figure 4 ), the convex ball 514 is adapted to gradually extend between the first clamping plate 529 and the second clamping plate 533 as the fifth cylinder 516 drives the support plate 519 to move upward;

[0070] A through slot 522 is provided on the support plate 519, and the through slot 522 is suitable for the convex ball 514 to pass through and is located between the first clamping plate 529 and the second clamping plate 533. A through slot 520 is provided on the support plate 519, and a second rack 526 is movably penetrated in the through slot 520. At the same time, a second gear 532 is fixedly installed at one end of the second screw rod 531. The second rack 526 has a second smooth section (such as Fig. 9 ), the second gear 532 is in the position of the second smooth section in the initial state;

[0071] The second rack 526 has side blocks on both sides, and side slots 521 are connected and opened on both sides of the through slot 520, and a fourth spring 527 is arranged at the top of the inner wall of the side slot 521, one end of the fourth spring 527 is connected to the top surface of the side block, and the fourth spring 527 is used to support the second rack 526, and there is a certain distance between one end of the second rack 526 and the bottom support plate 524, and a limiting plate 513 is fixedly installed on the first rack 512, and the side blocks on both sides of the second rack 526 are at a certain distance from the bottom end of the side slot 521;

[0072] When the fifth cylinder 516 drives the support plate 519 to move upward, the limiting plate 513 gradually contacts one end of the second rack 526, so as to drive the second rack 526 to move downward and drive the side block to stretch the fourth spring 527, so that the side block gradually approaches the bottom end of the side slot 521, and is suitable for driving the second rack 526 to move downward and mesh with the second gear 532 and rotate, and synchronously drives the second screw rod 531 to rotate, so that the second clamping plate 533 gradually approaches the first clamping plate 529, so as to clamp the convex ball 514;

[0073] It should be noted that when the support plate 519 is driven to move upward by starting the fifth cylinder 516, when the top end of the second rack 526 contacts the limiting plate 513, the convex ball 514 is synchronously located between the first clamping plate 529 and the second clamping plate 533, so as to clamp the convex ball 514 as the support plate 519 is continuously moved upward by the fifth cylinder 516, and after clamping, the first rack 512 is synchronously driven to move upward, so as to drive the first gear 507 to rotate, and drive the chuck body 307 to rotate, so that the three groups of jaws 310 are gradually moved upward, and the friction head 305 is dropped from between the three groups of jaws 310, and falls onto the groove 525 through the through hole;

[0074] In summary, the clamping process can be divided into several steps, wherein the first step is: when the friction head 305 of the first friction stir group is worn, the first cylinder 302 is first started to drive the fixed plate 303 to move upward, and then the fifth cylinder 516 is started to drive the support plate 519 to move downward, so that the horizontal position of the support plate 519 is lower than the horizontal position of the friction head 305 of the first friction stir group, and then the rotating motor 401 is started to drive the rotating plate 402 to rotate 90 degrees, so that the friction head 305 of the first friction stir group is directly above the support plate 519, so that the friction head 305 of the first friction stir group can be moved to the designated inspection position;

[0075] Step 2: Reset by starting the fifth cylinder 516 again, that is, drive the support plate 519 to move upward. At this time, the second rack 526 inserted on the support plate 519 gradually approaches and contacts the limiting plate 513. At this time, the convex ball 514 is synchronously located between the first clamping plate 529 and the second clamping plate 533. As the fifth cylinder 516 drives the support plate 519 to continue to move upward, the second rack 526 contacts the limiting plate 513 and is squeezed downward. When the second rack 526 moves downward, the fourth spring 527 is stretched and the second gear 532 is synchronously driven to rotate, so as to drive the second clamping plate 533 to clamp the convex ball 514. At this time, the clamping of the first rack 512 is completed, so that the first rack 512 moves upward synchronously with the upward movement of the telescopic end of the fifth cylinder 516.

[0076] While clamping, the base 528 pushes the first rack 512 to move upward, and the upward movement of the first rack 512 drives the first gear 507 to rotate, and drives the chuck body 307 to rotate, so that the three groups of jaws 310 gradually move upward, and the friction head 305 falls off from between the three groups of jaws 310. At this time, the friction head 305 passes through the through hole and falls on the groove 525 (at this time, the friction head 305 changes from the worn state to the default installation state), and at the same time, the fifth cylinder 516 restores the default state, and the end of the second rack 526 away from the fifth cylinder 516 is against the bottom support plate 524, thereby completing the position change of the worn friction head 305, so that the friction head 305 is kept in the initial position;

[0077] Step 3: Then, the fourth cylinder 502 is started to drive the Y-shaped rod 503 to move, so that the two groups of tapered rods 506 are located and attached to the bottom of the bottom support plate 524 to support and limit the bottom support plate 524, and then the fifth cylinder 516 is started again to drive the support plate 519 to move downward. Since the bottom support plate 524 is restricted by the two groups of tapered rods 506 and the second rack 526 is restricted by the bottom support plate 524, the second rack 526 remains stationary and does not move. In addition, the convex ball 514 at one end of the first rack 512 is clamped and restricted by the first clamping plate 529 and the second clamping plate 533;

[0078] As the fifth cylinder 516 moves downward, the support plate 519 is driven to move downward, and the support plate 519 drives the base 528 to move downward. The base 528 pulls the first rack 512 downward while the support plate 519 squeezes the third spring 523. The downward movement of the first rack 512 drives the first gear 507 to rotate, and drives the chuck body 307 to rotate, so that the three groups of jaws 310 gradually move downward, and the three groups of jaws 310 clamp the friction head 305.

[0079] When the fifth cylinder 516 drives the support plate 519 to move downward and squeezes the third spring 523 to the limit, that is, when the squeezing force of the support plate 519 on the bottom support plate 524 is greater than the thrust of the first spring 505 on the tapered rod 506, the bottom support plate 524 passes over the two groups of tapered rods 506, and the first spring 505 is reset to the initial state. At this time, the bottom support plate 524 no longer restricts one end of the second rack 526, and the second rack 526 drives the second gear 532 to rotate with the reset of the fourth spring 527, so as to drive the second clamping plate 533 to gradually move away from the first clamping plate 529, and no longer clamps the convex ball 514 at one end of the first rack 512, thereby resetting to the initial state;

[0080] Step 4: Then start the rotating motor 401 again to drive the rotating disk 402 to rotate 90 degrees. At this time, the first friction stir group and the second friction stir group are swapped, and then the third cylinder 403 of the first friction stir group is started to reset, and the third cylinder 403 of the second friction stir group is started simultaneously to drive the friction head 305 to move downward, so that the horizontal distance between the friction head 305 of the second friction stir group and the placement table 201 is smaller than the horizontal distance between the friction head 305 of the first friction stir group and the placement table 201, so as to realize the friction welding work through the friction head 305 of the second friction stir group;

[0081] Therefore, during the process of replacing the worn friction head 305, the worn friction head 305 can be calibrated so that the worn friction head 305 maintains the initial position for easy replacement and reuse, thereby improving the stir friction welding efficiency.

[0082] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A friction welding device, characterized in that: include: A welding table (1), the welding table (1) having a working surface (101); A moving mechanism (2), the moving mechanism (2) being installed on the working surface (101), and the moving mechanism (2) being used to achieve movement in the X-axis and Y-axis directions; A right-angle frame (301), the right-angle frame (301) being mounted on the moving mechanism (2), and a first cylinder (302) being mounted on the right-angle frame (301); A fixed disk (303), the fixed disk (303) being mounted on an output end of the first cylinder (302); A rotating motor (401), the rotating motor (401) being mounted on the fixed disk (303), and an output end of the rotating motor (401) movably passing through the fixed disk (303); A rotating disk (402), the rotating disk (402) being mounted at the output end of the rotating motor (401); Two groups of third cylinders (403), the third cylinders (403) being mounted on the rotating disk (402); a second motor (304), the second motor (304) being mounted at the telescopic end of the third cylinder (403); A fixing sleeve (306), the fixing sleeve (306) being installed at the output end of the second motor (304), the fixing sleeve (306) being a hollow structure; A chuck body (307), the chuck body (307) is clamped on the bottom of the fixing sleeve (306), the chuck body (307) is hollow, the inner ring of the chuck body (307) is provided with a first tooth pattern (308) in an annular shape, and the surface of the chuck body (307) is provided with a bevel tooth block (309) in an annular shape; Three groups of clamping jaws (310), the clamping jaws (310) are movably inserted into the chuck body (307), the top ends of the three groups of clamping jaws (310) are spliced ​​to form a circular step, the diameter of the circular step is adapted to the inner diameter of the fixed sleeve (306), a second tooth pattern (311) is provided on one side of the clamping jaw (310) close to the inner ring of the chuck body (307), the second tooth pattern (311) is meshed with the first tooth pattern (308), a friction head (305) is clamped between the three groups of clamping jaws (310), and the friction head (305) extends into the fixed sleeve (306); A first bevel gear (313), the first bevel gear (313) having a bearing mounted on the chuck body (307), the first bevel gear (313) being meshed with the bevel gear block (309); Wherein: the first bevel gear (313) is suitable for rotating, and the clamp body (307) is suitable for rotating synchronously, so as to drive the three groups of clamping jaws (310) to move up and down, so that one end of the three groups of clamping jaws (310) is close to or away from each other, so as to clamp or loosen the friction head (305); A group of the third cylinder (403), the second motor (304) and the friction head (305) constitute a stirring friction group, the stirring friction group on the right side is defined as a first stirring friction group, and the stirring friction group on the left side is defined as a second stirring friction group; The second motor (304) is provided with a checking mechanism (5), the checking mechanism (5) comprising a fifth cylinder (516) installed on the side of the fixed plate (303), a checking plate (517) being installed at the telescopic end of the fifth cylinder (516), the checking plate (517) having two groups of extended ends, a supporting plate (519) being provided between the two groups of extended ends; The support plate (519) is provided with a through hole, a third spring (523) is installed on the bottom surface of the support plate (519), a bottom support plate (524) is installed on one end of the third spring (523), the width of the bottom support plate (524) is greater than the width of the support plate (519), a certain gap is formed between the bottom support plate (524) and the support plate (519), and a groove (525) is provided on the bottom support plate (524); A support (501) is installed on the fixed disk (303), and the support (501) movably penetrates the rotating disk (402). A fourth cylinder (502) is installed on one end of the support (501), and a Y-shaped rod (503) is installed on the output end of the fourth cylinder (502). The Y-shaped rod (503) has a protruding end, and two groups of protruding ends are provided with open grooves (504) on the sides close to each other. A first spring (505) is arranged inside the open groove (504), and a conical rod (506) is installed on one end of the first spring (505); The second motor (304) is provided with a mounting seat (508), and two groups of vertical rods (511) are movably inserted on the mounting seat (508), one end of the two groups of vertical rods (511) is connected to a support rod (509), and a second spring (510) is sleeved on the vertical rod (511), one end of the second spring (510) is connected to the bottom surface of the mounting seat (508), and the other end of the second spring (510) is connected to the top surface of the support rod (509); The support rod (509) is provided with a first rack (512), the first rack (512) having a first smooth section, the first bevel gear (313) having a central axis, the central axis being provided with a first gear (507), the first gear (507) being located at the position of the first smooth section in an initial state; A base (528) is installed on the bottom surface of the support plate (519), and the base (528) has a first clamping plate (529). A protrusion (530) is installed on the base (528) near one end, and a second screw rod (531) is installed on the protrusion (530) in a bearing, and the other end of the second screw rod (531) is connected to the bearing of the first clamping plate (529). A second clamping plate (533) is threadedly connected to the second screw rod (531), and a convex ball (514) is installed on one end of the first rack (512); The support plate (519) is provided with a through groove (522), the support plate (519) is provided with a through groove (520), a second rack (526) movably passes through the through groove (520), a second gear (532) is installed at one end of the second screw rod (531), the second rack (526) has a second smooth section, and the second gear (532) is located at the position of the second smooth section in an initial state; The second rack (526) has side blocks on both sides, and the through groove (520) is connected on both sides with side slots (521). A fourth spring (527) is provided at the top of the inner wall of the side slot (521), and one end of the fourth spring (527) is connected to the top surface of the side block. There is a certain distance between one end of the second rack (526) and the bottom support plate (524). A limiting plate (513) is installed on the first rack (512), and the side blocks on both sides of the second rack (526) are at a certain distance from the bottom end of the side slot (521).

2. The welding process of a friction welding device according to claim 1, characterized in that: The first step is to clamp the liquid cooling plate (601) by means of a clamping block (203), and then to weld the welding cover plate (602) and the liquid cooling plate (601) together by means of vacuum brazing, and then to start the moving mechanism (2) to drive the friction head (305) to move in the X-axis and Y-axis directions, and to start the first cylinder (302) to drive the friction head (305) to move downward a specified distance, and to perform friction welding along the weld between the welding cover plate (602) and the liquid cooling plate (601); The second step is to start the first cylinder (302) to drive the fixed disk (303) to move upward, then start the rotating motor (401) to drive the rotating disk (402) to rotate 180 degrees, and then start the third cylinder (403) of the first stirring friction group to reset, and at the same time, the third cylinder (403) of the second stirring friction group drives the friction head (305) to move downward, so as to perform friction welding through the friction head (305) of the second stirring friction group.

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