Heat treatment equipment and process based on friction stir welding workpiece

Abstract

The invention relates to the field of heat treatment equipment, in particular to heat treatment equipment and process based on a friction stir welding workpiece. The upper end of the bottom plate is fixedly connected with a first quenching box and a second quenching box, and stirring mechanisms are arranged on the first quenching box and the second quenching box. A second U-shaped block is placed in a first quenching box, the part of the friction welding end is immersed in a water body in the first quenching box to be cooled, then a lifting assembly is started to lift a first clamping assembly upwards, a workpiece body corresponds to a material returning assembly, extrusion of the first clamping assembly on the workpiece body is relieved, and the friction welding end is cooled; the workpiece body is kept limited by the first clamping assembly, then the material returning assembly is started to push the workpiece body forwards into the clamping moving assembly, the clamping moving assembly is started to rotate the workpiece body into the tempering mechanism, the tempering mechanism is started to heat the quenched workpiece body to achieve tempering, and use is convenient.

Description

Technical Field

[0001] The invention belongs to the field of heat treatment equipment, and in particular relates to heat treatment equipment and a process based on friction stir welding workpieces. Background Art

[0002] In the metal processing industry, heat treatment is a crucial process that gives metals specific mechanical properties by changing their physical structure. Especially for ferrous metals such as steel and iron, heat treatment can significantly improve their hardness, toughness, wear resistance and corrosion resistance, thereby meeting the needs of various industrial applications. Stir friction welding softens the workpiece material by utilizing the friction heat generated between the high-speed rotating stirring head and the workpiece during the welding process, and realizes the plastic flow and metallurgical bonding of the material under the stirring action of the stirring head. However, the workpiece after stir friction welding often has problems such as residual stress and structural inhomogeneity, which may affect the mechanical properties and corrosion resistance of the workpiece.

[0003] In order to improve these performance problems of stir friction welding workpieces, heat treatment has become an effective solution. Through decarburization, tempering or other heat treatment processes, the microstructure of the workpiece can be adjusted, residual stress can be eliminated, and the toughness and strength of the workpiece can be improved. However, the heat treatment equipment of stir friction welding workpieces in the prior art is difficult to quickly quench and temper a batch of stir friction welding workpieces, and it is difficult to improve the heat treatment efficiency of the workpiece, which needs further improvement.

[0004] Therefore, a heat treatment device and process based on a friction stir welding workpiece are proposed, which can quickly quench and temper a batch of friction stir welding workpieces, and can improve the heat treatment efficiency of the workpiece. Summary of the invention

[0005] In order to overcome the problem that the heat treatment equipment of the friction stir welding workpiece in the prior art is difficult to quickly quench and temper a batch of friction stir welding workpieces and difficult to improve the heat treatment efficiency of the workpieces, a heat treatment equipment and process based on the friction stir welding workpiece are proposed.

[0006] The technical scheme of the present invention is: a heat treatment equipment based on stir friction welding workpiece, comprising a bottom plate and a workpiece body; a first quenching box and a second quenching box are fixedly connected to the upper end of the bottom plate, and a stirring mechanism is arranged on the first quenching box and the second quenching box; first brackets are fixedly connected to the left and right edges of the upper end of the bottom plate, and a braking mechanism is arranged on the upper ends of the two first brackets; a first moving block is installed on the braking mechanism, a lifting assembly is arranged on the upper part of the rear end of the first moving block, and a first clamping assembly is arranged on the lifting assembly; a clamping moving assembly for feeding the workpiece body is arranged at the front end of the first bracket, a tempering mechanism for heating is fixedly connected to the upper end of the bottom plate, and a material return assembly is arranged on the upper part of the rear end of the first bracket; The lifting assembly includes a first U-shaped block, a wire winding roller, a third motor, a second fixed block, and a sliding rod; the upper part of the rear end of the first moving block is fixedly connected with the first U-shaped block, the left and right ends of the inner wall of the first U-shaped block are rotatably installed with the wire winding roller, the left end of the first U-shaped block is fixedly connected with the third motor, and the right end of the output shaft of the third motor passes through the first U-shaped block and is fixedly connected to the rotating shaft at the left end of the wire winding roller; The first clamping assembly includes a second U-shaped block, a bearing block, a fixed seat, a wire rope, a third fixed block, and a first cylinder; a second U-shaped block is arranged below the first moving block, the rear end of the second U-shaped block is fixedly connected with the bearing block, the upper end of the bearing block is fixedly connected with the fixed seat, the wire rope is fixedly connected to the fixed seat, the other end of the wire rope is fixedly connected to the side wall of the wire winding roller, the opening of the second U-shaped block faces downward, and first cylinders are fixedly connected to both the left and right ends of the second U-shaped block. The output shaft of the first cylinder passes through the second U-shaped block and is fixedly connected with a first clamping block, and the first clamping block is U-shaped.

[0007] Preferably, during use, the workpiece body is a workpiece after friction stir welding is completed. After the workpiece body is clamped and moved by the clamping and moving assembly, the workpiece body is moved between the two first clamping blocks. Then, the two oppositely arranged first cylinders are turned on so that the two first clamping blocks approach each other to clamp and fix the workpiece body. Then, the third motor is turned on to make the wire winding roller rotate, and the wire rope is wound around the side wall of the wire winding roller. The second U-shaped block is lowered into the first quenching tank, and the friction welding end part is immersed in the water body in the first quenching tank, so that the friction welding end on the workpiece body can be cooled. Then, the lifting assembly is turned on again to lift the first clamping assembly upward, so that the workpiece body corresponds to the feeding assembly. The extrusion of the first clamping assembly on the workpiece body is released, and the workpiece body is limited by the first clamping assembly. Then, the feeding assembly is turned on to push the workpiece body forward into the clamping and moving assembly, and the clamping and moving assembly is turned on to rotate the workpiece body into the tempering mechanism. The tempering mechanism can be turned on to heat the quenched workpiece body to achieve tempering. Then, the tempering mechanism is turned off, and the clamping and moving assembly is turned on to remove the workpiece body so that the workpiece body can be naturally cooled. When a workpiece is being tempered and heated in the tempering mechanism, the braking mechanism is turned on to move the first moving block to another clamping and moving assembly, and the quenching and tempering of the next workpiece can be carried out. By providing the first quenching tank and the second quenching tank, the quenching operation can be selected to be carried out in the first quenching tank or the second quenching tank according to needs, which is convenient for replacing the coolant in the first quenching tank and the second quenching tank, and solves the problem that the heat treatment equipment for friction stir welding workpieces in the prior art is difficult to quickly quench and temper a batch of friction stir welding workpieces and is difficult to improve the heat treatment efficiency of the workpieces.

[0008] Preferably, the stirring mechanism includes a first motor, a first rotating column, a first toothed ring, a second rotating column, a second toothed ring, a third rotating column and a third toothed ring; the left end of the first quenching tank is fixedly connected with a first motor, the right end of the output shaft of the first motor passes through the left end of the first motor and is fixedly connected with a first rotating column, the side wall of the first rotating column is fixedly connected with a first toothed ring, the upper part of the right end of the first quenching tank is rotatably installed in a penetrating manner with a second rotating column, the lower part of the right end of the first quenching tank is rotatably installed in a penetrating manner with a second toothed ring, the side wall of the second rotating column is fixedly connected with a second toothed ring, the side wall of the second toothed ring is fixedly connected with a third toothed ring, the third toothed ring is meshed with the first toothed ring, and the third rotating column is meshed with the first toothed ring.

[0009] Preferably, the right end of the second rotating column is rotatably installed in a penetrating manner at the left and right ends of the second quenching tank, the right end of the second toothed ring is rotatably installed in a penetrating manner at the left and right ends of the second quenching tank, the side wall of the second rotating column is fixedly connected with uniformly distributed first stirring blocks, the side wall of the second toothed ring is fixedly connected with uniformly distributed second stirring blocks, and both the first stirring blocks and the second stirring blocks are located inside the second quenching tank.

[0010] Preferably, the braking mechanism includes a support, a second motor, a lead screw body, a bearing, a lead screw nut, a first fixing block and a guide rod; the upper end of the first bracket is fixedly connected with a support, the right end of one of the supports is fixedly connected with a second motor, the output shaft of the second motor passes through one of the supports and is fixedly connected with a lead screw body, the outer wall of the lead screw body is movably installed with a lead screw nut, the upper end of the lead screw nut is fixedly connected to the lower end of the first moving block, the upper ends of both supports are fixedly connected with first fixing blocks, and a guide rod is fixedly connected to the ends of the two first fixing blocks close to each other, and the first moving block is slidably arranged on the side wall of the guide rod.

[0011] Preferably, bearings are fixedly installed in a penetrating manner at the left and right ends of the other support, and the left end of the lead screw body is rotatably installed on the inner wall of the bearing.

[0012] Preferably, the front end of the first U-shaped block is fixedly connected with a second fixing block, a sliding rod is slidably arranged on the inner wall of the holes penetratingly opened at the upper and lower ends of the second fixing block, and the lower end of the sliding rod is fixedly connected to the upper end of the third fixing block.

[0013] Preferably, the clamping and moving assembly includes a first rodless cylinder, a third U-shaped block, a second cylinder, and a second clamping block; an L-shaped block is fixedly connected to the upper part of the front end of the first bracket, a first rodless cylinder is fixedly connected to one end of the two L-shaped blocks away from each other, the upper end of the moving end of the first rodless cylinder is fixedly connected to a first connecting block, the side wall of the first connecting block is fixedly connected to a second moving block, a first sliding groove is opened at the upper end of the L-shaped block, a first sliding block is slidably arranged on the inner wall of the first sliding groove, the upper end of the first sliding block is fixedly connected to the lower end of the second moving block, a fourth motor is fixedly connected to the side wall of the second moving block, the output shaft of the fourth motor passes through the second moving block and is fixedly connected to a rotating block, a third U-shaped block is fixedly connected to the rear end of the rotating block, second cylinders are fixedly connected to both the left and right ends of the third U-shaped block, the output shafts of the second cylinders pass through the third U-shaped block and are fixedly connected to second clamping blocks, and a workpiece body is placed between the two second clamping blocks.

[0014] Preferably, the material returning assembly includes a third bracket, a third cylinder, and a push column; a third bracket is fixedly connected to the upper part of the rear end of the first bracket, a third cylinder is fixedly connected to the rear end of the third bracket, the front end of the output shaft of the third cylinder passes through the third bracket and is fixedly connected to a push column, and the push column corresponds to the workpiece body.

[0015] Preferably, the tempering mechanism includes a fourth bracket, a protective block, and an intermediate frequency induction coil; two fourth brackets are fixedly connected to the front edge of the upper end of the bottom plate, a protective block is fixedly connected to the side end of the fourth bracket, a second rodless cylinder is fixedly connected to the side end of the protective block, a second sliding groove is opened at the upper end of the protective block, a second sliding block is slidably arranged on the inner wall of the second sliding groove, the moving end of the second rodless cylinder is fixedly connected to the side end of the second sliding block, a heating cylinder is fixedly connected to the end of the second sliding block located inside the protective block, and an intermediate frequency induction coil is fixedly connected to the inner wall of the heating cylinder.

[0016] The present invention also provides a heat treatment device and process for friction stir welding workpieces, which includes a heat treatment device for friction stir welding workpieces as described above, and its process steps are as follows: Step 1: After clamping the workpiece body by using the clamping and moving assembly and moving it, move the workpiece body between the two first clamping blocks, and start the two first cylinders arranged oppositely so that the two first clamping blocks approach each other to clamp and fix the workpiece body; Step 2: Then start the third motor to make the wire winding roller rotate, wind the wire rope on the side wall of the wire winding roller, lower the second U-shaped block into the first quenching tank, and immerse the friction welding end part into the water body in the first quenching tank, so as to cool the friction welding end on the workpiece body; Step 3: Then, activate the lifting assembly again to lift the first clamping assembly upward so that the workpiece body corresponds to the material return assembly, relieve the extrusion of the first clamping assembly on the workpiece body, maintain the limit of the first clamping assembly on the workpiece body, then activate the material return assembly to push the workpiece body forward into the clamping and moving assembly, and activate the clamping and moving assembly to rotate the workpiece body into the tempering mechanism; Step 4: Then activate the second rodless cylinder to lift and lower the heating cylinder, activate the intermediate frequency induction coil to temper and heat the quenched workpiece, then turn off the tempering mechanism, activate the clamping and moving assembly to remove the workpiece body, and let the workpiece body cool naturally; Step 5: When a workpiece is being tempered and heated in the tempering mechanism, activate the braking mechanism to move the first moving block to another clamping and moving assembly to perform quenching and tempering on the next workpiece.

[0017] Advantages of the present invention: After clamping the workpiece body with the clamping and moving assembly and moving it to between the two first clamping blocks, activate the two first cylinders arranged facing each other to make the two first clamping blocks approach each other, clamp and fix the workpiece body. Then activate the third motor to rotate the wire winding roller and wind the wire rope on the side wall of the wire winding roller. Lower the second U-shaped block into the first quenching tank so that the friction welding end part is immersed in the water body in the first quenching tank to cool the friction welding end on the workpiece body. Then, activate the lifting assembly again to lift the first clamping assembly upward so that the workpiece body corresponds to the material return assembly, relieve the extrusion of the first clamping assembly on the workpiece body, maintain the limit of the first clamping assembly on the workpiece body, then activate the material return assembly to push the workpiece body forward into the clamping and moving assembly, activate the clamping and moving assembly to rotate the workpiece body into the tempering mechanism, activate the tempering mechanism to heat the quenched workpiece body to achieve tempering, then turn off the tempering mechanism, activate the clamping and moving assembly to remove the workpiece body, and let the workpiece body cool naturally. When a workpiece is being tempered and heated in the tempering mechanism, activate the braking mechanism to move the first moving block to another clamping and moving assembly to perform quenching and tempering on the next workpiece. By providing the first quenching tank and the second quenching tank, quenching operations can be selectively carried out in the first quenching tank or the second quenching tank as needed, facilitating the replacement of the coolant in the first quenching tank and the second quenching tank, and solving the problems in the prior art that it is difficult to quickly quench and temper a batch of friction stir welding workpieces with a heat treatment device for friction stir welding workpieces and it is difficult to improve the heat treatment efficiency of the workpieces. Description of the Drawings

[0018] Figure 1 Shows the three-dimensional structure schematic diagram of the present invention; Figure 2 Shows the three-dimensional structure schematic diagram of the first quenching tank and the second quenching tank of the present invention; Figure 3 The figure shows a three-dimensional structural schematic diagram of the braking mechanism of the present invention; Figure 4 The figure shows a three-dimensional structural schematic diagram of the lifting component and the first clamping component of the present invention; Figure 5 The figure shows a three-dimensional structural schematic diagram of the second fixing block of the present invention; Figure 6 The figure shows a three-dimensional structural schematic diagram of the clamping and moving component of the present invention; Figure 7 The figure shows a three-dimensional structural schematic diagram of the third U-shaped block of the present invention; Figure 8 The figure shows a three-dimensional structural schematic diagram of the protective block of the present invention; Figure 9 The figure shows a three-dimensional structural schematic diagram of the material return component of the present invention.

[0019] The reference signs in the drawings are: 1, bottom plate; 2, first quenching tank; 201, first motor; 202, first rotating column; 203, first toothed ring; 204, second rotating column; 205, second toothed ring; 206, third rotating column; 207, third toothed ring; 3, second quenching tank; 301, first stirring block; 302, second stirring block; 4, first bracket; 5, braking mechanism; 501, support; 502, second motor; 503, screw rod body; 504, bearing; 505, screw nut; 506, first fixing block; 507, guide rod; 6, first moving block; 7, lifting component; 701, first U-shaped block; 702, wire winding roller; 703, third motor; 704, second fixing block; 705, slide bar; 8, first clamping component; 801, second U-shaped block; 802, bearing block; 803, fixed seat; 804, wire rope; 805, third fixing block; 806, first cylinder; 807, first clamping block; 9, clamping and moving component; 901, L-shaped block; 902, first rodless cylinder; 903, first connecting block; 904, second moving block; 905, first chute; 906, first slider; 907, fourth motor; 908, rotating block; 909, third U-shaped block; 910, second cylinder; 911, second clamping block; 912, workpiece body; 10, tempering mechanism; 11, material return component; 1101, third bracket; 1102, third cylinder; 1103, push column; 12, fourth bracket; 13, protective block; 14, second rodless cylinder; 15, second chute; 16, second slider; 17, heating cylinder; 18, intermediate frequency induction coil. Detailed implementation manners

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Embodiment 1: Please refer to Figures 1-9 , a heat treatment device for friction stir welding workpieces, comprising a bottom plate 1 and a workpiece body 912; a first quenching tank 2 and a second quenching tank 3 are fixedly connected to the upper end of the bottom plate 1, a stirring mechanism is arranged on the first quenching tank 2 and the second quenching tank 3, first brackets 4 are fixedly connected to the left and right edges of the upper end of the bottom plate 1, a braking mechanism 5 is jointly arranged at the upper ends of the two first brackets 4, a first moving block 6 is installed on the braking mechanism 5, a lifting assembly 7 is arranged at the upper part of the rear end of the first moving block 6, a first clamping assembly 8 is installed on the lifting assembly 7, a clamping and moving assembly 9 for loading the workpiece body 912 is arranged at the front end of the first bracket 4, a tempering mechanism 10 for heating is fixedly connected to the upper end of the bottom plate 1, and a feeding-back assembly 11 is arranged at the upper part of the rear end of the first bracket 4; The lifting assembly 7 includes a first U-shaped block 701, a wire winding roller 702, a third motor 703, a second fixing block 704 and a sliding rod 705; the first U-shaped block 701 is fixedly connected to the upper part of the rear end of the first moving block 6, the left and right ends of the inner wall of the first U-shaped block 701 are rotatably installed with the wire winding roller 702, the left end of the first U-shaped block 701 is fixedly connected to the third motor 703, and the right end of the output shaft of the third motor 703 passes through the first U-shaped block 701 and is fixedly connected to the rotating shaft at the left end of the wire winding roller 702; The first clamping assembly 8 includes a second U-shaped block 801, a bearing block 802, a fixing seat 803, a wire rope 804, a third fixing block 805 and a first cylinder 806; the second U-shaped block 801 is arranged below the first moving block 6, the bearing block 802 is fixedly connected to the rear end of the second U-shaped block 801, the fixing seat 803 is fixedly connected to the upper end of the bearing block 802, the wire rope 804 is fixedly connected to the fixing seat 803, the other end of the wire rope 804 is fixedly connected to the side wall of the wire winding roller 702, the opening of the second U-shaped block 801 faces downward, first cylinders 806 are fixedly connected to the left and right ends of the second U-shaped block 801, the output shafts of the first cylinders 806 pass through the second U-shaped block 801 and are fixedly connected to first clamping blocks 807, and the first clamping blocks 807 are U-shaped.

[0022] During use, the workpiece body 912 is a workpiece after friction stir welding is completed. After the workpiece body 912 is clamped and moved by the clamping and moving assembly 9, the workpiece body 912 is moved between the two first clamping blocks 807. The two oppositely arranged first cylinders 806 are opened to make the two first clamping blocks 807 approach each other, clamping and fixing the workpiece body 912. Then, the third motor 703 is started to make the wire winding roller 702 rotate, winding the wire rope 804 on the side wall of the wire winding roller 702. The second U-shaped block 801 is lowered into the first quenching tank 2, and the friction welding end part is immersed in the water in the first quenching tank 2, so that the friction welding end on the workpiece body 912 can be cooled. Then, the lifting assembly 7 is started again to lift the first clamping assembly 8 upward, so that the workpiece body 912 corresponds to the feeding assembly 11. The extrusion of the first clamping assembly 8 on the workpiece body 912 is released, and the limiting of the first clamping assembly 8 on the workpiece body 912 is maintained. Then, the feeding assembly 11 is started to push the workpiece body 912 forward into the clamping and moving assembly 9, and the clamping and moving assembly 9 is started to rotate the workpiece body 912 into the tempering mechanism 10. The tempering mechanism 10 is started to heat the quenched workpiece body 912 to achieve tempering. Then, the tempering mechanism 10 is closed, and the clamping and moving assembly 9 is started to remove the workpiece body 912, and the workpiece body 912 is allowed to cool naturally. When a workpiece is being tempered and heated in the tempering mechanism 10, the braking mechanism 5 is started to move the first moving block 6 to another clamping and moving assembly 9, and quenching and tempering of the next workpiece can be carried out. By providing the first quenching tank 2 and the second quenching tank 3, quenching operations can be selectively carried out in the first quenching tank 2 or the second quenching tank 3 as needed, which is convenient for replacing the coolant in the first quenching tank 2 and the second quenching tank 3.

[0023] Please refer to Figure 1 and Figure 3, in this embodiment, the braking mechanism 5 includes a support 501, a second motor 502, a lead screw body 503, a bearing 504, a lead screw nut 505, a first fixing block 506 and a guide rod 507; the upper end of the first bracket 4 is fixedly connected with the support 501, the right end of one of the supports 501 is fixedly connected with the second motor 502, the output shaft of the second motor 502 passes through one of the supports 501 and is fixedly connected with the lead screw body 503, the outer wall of the lead screw body 503 is movably installed with the lead screw nut 505, the upper end of the lead screw nut 505 is fixedly connected to the lower end of the first moving block 6, the upper ends of the two supports 501 are both fixedly connected with the first fixing blocks 506, the first fixing blocks 506 at both ends are fixedly connected with the guide rod 507, the first moving block 6 is slidably arranged on the side wall of the guide rod 507. When it is necessary to move the first moving block 6, the second motor 502 is turned on to make the lead screw body 503 rotate, the lead screw nut 505 will move along the side wall of the lead screw body 503, and the first moving block 6 will slide along the side wall of the guide rod 507, which is convenient for moving the first moving block 6.

[0024] Please refer to Figure 1 and Figure 3 , in this embodiment, the left and right ends of the other support 501 are fixedly connected through the bearings 504, and the left end of the lead screw body 503 is rotatably installed on the inner wall of the bearing 504, which is beneficial to the stable rotation of the lead screw body 503.

[0025] Please refer to Figure 1 , Figure 4 and Figure 5 , in this embodiment, the front end of the first U-shaped block 701 is fixedly connected with the second fixing block 704, the inner wall of the holes opened through the upper and lower ends of the second fixing block 704 is slidably provided with a sliding rod 705, and the lower end of the sliding rod 705 is fixedly connected to the upper end of the third fixing block 805. When the second U-shaped block 801 moves in the vertical direction, the sliding rod 705 will slide along the inner wall of the holes opened through the upper and lower ends of the second fixing block 704, so as to facilitate the stable movement of the second U-shaped block 801 in the vertical direction.

[0026] Please refer to Figure 1 , Figure 6 and Figure 7, in this embodiment, the clamping and moving assembly 9 includes a first rodless cylinder 902, a third U-shaped block 909, a second cylinder 910, and a second clamping block 911; an L-shaped block 901 is fixedly connected to the upper part of the front end of the first bracket 4, and a first rodless cylinder 902 is fixedly connected to one end of the two L-shaped blocks 901 away from each other. The upper end of the moving end of the first rodless cylinder 902 is fixedly connected to a first connecting block 903. A second moving block 904 is fixedly connected to the side wall of the first connecting block 903. A first chute 905 is opened at the upper end of the L-shaped block 901, and a first slider 906 is slidably arranged on the inner wall of the first chute 905. The upper end of the first slider 906 is fixedly connected to the lower end of the second moving block 904. A fourth motor 907 is fixedly connected to the side wall of the second moving block 904. The output shaft of the fourth motor 907 passes through the second moving block 904 and is fixedly connected to a rotating block 908. A third U-shaped block 909 is fixedly connected to the rear end of the rotating block 908. Second cylinders 910 are fixedly connected to both the left and right ends of the third U-shaped block 909. The output shafts of the second cylinders 910 pass through the third U-shaped block 909 and are fixedly connected to second clamping blocks 911. A workpiece body 912 is placed between the two second clamping blocks 911. When it is necessary to load the workpiece body 912, the workpiece body 912 is placed between the two second clamping blocks 911, and then the fourth motor 907 is turned on to rotate the rotating block 908 and the third U-shaped block 909. The two second cylinders 910 are turned on to make the two second clamping blocks 911 approach each other to clamp the workpiece body 912. Then the first rodless cylinder 902 is turned on to drive the first connecting block 903 to move by its moving end, and the workpiece body 912 will be moved backward to facilitate feeding the workpiece body 912 into the first clamping assembly 8.

[0027] Please refer to Figure 1 , Figure 7 and Figure 9 , in this embodiment, the material return assembly 11 includes a third bracket 1101, a third cylinder 1102, and a push column 1103; a third bracket 1101 is fixedly connected to the upper part of the rear end of the first bracket 4, a third cylinder 1102 is fixedly connected to the rear end of the third bracket 1101, the front end of the output shaft of the third cylinder 1102 passes through the third bracket 1101 and is fixedly connected to a push column 1103, and the push column 1103 corresponds to the workpiece body 912. When the workpiece body 912 is cooled, the workpiece body 912 is lifted upward to make the push column 1103 correspond to the workpiece body 912, and then the third cylinder 1102 is turned on to make the push column 1103 move forward, and the workpiece body 912 can be pushed forward into the clamping and moving assembly 9. The clamping and moving assembly 9 is turned on to rotate the workpiece body 912 into the tempering mechanism 10. The tempering mechanism 10 is turned on to reheat the workpiece body 912 to achieve tempering, and then the tempering mechanism 10 is turned off to realize the natural cooling of the workpiece body 912.

[0028] Please refer to Figure 1 and Figure 8, in this embodiment, the tempering mechanism 10 includes a fourth bracket 12, a protective block 13, and an intermediate frequency induction coil 18. Two fourth brackets 12 are fixedly connected to the upper front edge of the bottom plate 1. A protective block 13 is fixedly connected to the side end of the fourth bracket 12. A second rodless cylinder 14 is fixedly connected to the side end of the protective block 13. A second sliding groove 15 is formed in the upper end of the protective block 13. A second slider 16 is slidably arranged on the inner wall of the second sliding groove 15. The moving end of the second rodless cylinder 14 is fixedly connected to the side end of the second slider 16. One end of the second slider 16 located inside the protective block 13 is fixedly connected to a heating cylinder 17. An intermediate frequency induction coil 18 is fixedly connected to the inner wall of the heating cylinder 17. Turning on the second rodless cylinder 14 can lift the heating cylinder 17, and turning on the intermediate frequency induction coil 18 can perform tempering heating on the quenched workpiece.

[0029] Embodiment 2: Please refer to Figure 2 , on the basis of Embodiment 1, the present application provides a technical solution: The stirring mechanism includes a first motor 201, a first rotating column 202, a first gear ring 203, a second rotating column 204, a second gear ring 205, a third rotating column 206, and a third gear ring 207; A first motor 201 is fixedly connected to the left end of the first quenching tank 2. The right end of the output shaft of the first motor 201 passes through the left end of the first motor 201 and is fixedly connected to a first rotating column 202. A first gear ring 203 is fixedly connected to the side wall of the first rotating column 202. The upper part of the right end of the first quenching tank 2 is rotatably installed in a through manner with a second rotating column 204. The lower part of the right end of the first quenching tank 2 is rotatably installed in a through manner with a second gear ring 205. A second gear ring 205 is fixedly connected to the side wall of the second rotating column 204. A third gear ring 207 is fixedly connected to the side wall of the second gear ring 205. The third gear ring 207 meshes with the first gear ring 203, and the third rotating column 206 meshes with the first gear ring 203. When it is necessary to stir the aqueous solution in the first quenching tank 2, turn on the first motor 201 so that the first rotating column 202 drives the first gear ring 203 to rotate, and the first gear ring 203 will drive the third rotating column 206 and the third gear ring 207 to rotate, thereby facilitating the stirring of the aqueous solution in the first quenching tank 2.

[0030] Embodiment 3: Please refer to Figure 2, on the basis of Embodiment 2, the present application provides a technical solution: the right end of the second rotating column 204 is rotatably installed through the left and right ends of the second quenching tank 3, the right end of the second toothed ring 205 is rotatably installed through the left and right ends of the second quenching tank 3, the side wall of the second rotating column 204 is fixedly connected with uniformly distributed first stirring blocks 301, the side wall of the second toothed ring 205 is fixedly connected with uniformly distributed second stirring blocks 302, both the first stirring blocks 301 and the second stirring blocks 302 are located inside the second quenching tank 3. When it is necessary to stir the aqueous solution inside the second quenching tank 3, since the rotation of the second rotating column 204 and the second toothed ring 205 will drive the first stirring blocks 301 and the second stirring blocks 302 to rotate, the aqueous solution inside the second quenching tank 3 can be quickly disturbed, which can facilitate the rapid mixing of the cold and hot water bodies inside the second quenching tank 3 and is conducive to the rapid cooling of the workpiece body 912.

[0031] The present invention also provides a heat treatment device and process for friction stir welding workpieces, which includes a heat treatment device for friction stir welding workpieces as described above, and its process steps are as follows: Step 1: After clamping and moving the workpiece body 912 by using the clamping and moving assembly 9, move the workpiece body 912 between the two first clamping blocks 807, and start the two first cylinders 806 arranged opposite to each other so that the two first clamping blocks 807 approach each other to clamp and fix the workpiece body 912; Step 2: Then start the third motor 703 to make the wire winding roller 702 rotate, wind the wire rope 804 on the side wall of the wire winding roller 702, lower the second U-shaped block 801 into the first quenching tank 2, and immerse the friction welding end part into the water body inside the first quenching tank 2 to cool the friction welding end on the workpiece body 912; Step 3: Then, start the lifting assembly 7 again to lift the first clamping assembly 8 upward so that the workpiece body 912 corresponds to the feeding assembly 11, release the extrusion of the first clamping assembly 8 on the workpiece body 912, maintain the limit of the first clamping assembly 8 on the workpiece body 912, then start the feeding assembly 11 to push the workpiece body 912 forward into the clamping and moving assembly 9, and start the clamping and moving assembly 9 to rotate the workpiece body 912 into the tempering mechanism 10; Step 4: Then start the second rodless cylinder 14 to lift and lower the heating cylinder 17, start the intermediate frequency induction coil 18 to temper and heat the quenched workpiece, then close the tempering mechanism 10, and start the clamping and moving assembly 9 to remove the workpiece body 912 so that the workpiece body 912 can be naturally cooled; Step 5: When a workpiece is being tempered and heated in the tempering mechanism 10, start the braking mechanism 5 to move the first moving block 6 to another clamping and moving assembly 9 to perform quenching and tempering on the next workpiece.

[0032] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A heat treatment device for a workpiece based on friction stir welding, comprising a base plate (1) and a workpiece body (912); characterized in that: The upper end of the bottom plate (1) is fixedly connected to a first quenching box (2) and a second quenching box (3), and a stirring mechanism is provided on the first quenching box (2) and the second quenching box (3). The left and right edges of the upper end of the bottom plate (1) are fixedly connected to first brackets (4), and the upper ends of the two first brackets (4) are jointly provided with a braking mechanism (5), and a first moving block (6) is installed on the braking mechanism (5). A lifting assembly (7) is provided at the upper rear end of the first moving block (6), and a first clamping assembly (8) is installed on the lifting assembly (7). A clamping moving assembly (9) for loading a workpiece body (912) is provided at the front end of the first bracket (4), and a tempering mechanism (10) for heating is fixedly connected to the upper end of the bottom plate (1), and a material return assembly (11) is provided at the upper rear end of the first bracket (4); The lifting assembly (7) comprises a first U-shaped block (701), a wire-taking roller (702), a third motor (703), a second fixed block (704) and a sliding rod (705); the first U-shaped block (701) is fixedly connected to the upper rear end of the first movable block (6); the wire-taking roller (702) is rotatably mounted on the left and right ends of the inner wall of the first U-shaped block (701); the third motor (703) is fixedly connected to the left end of the first U-shaped block (701); and the right end of the output shaft of the third motor (703) passes through the first U-shaped block (701) and is fixedly connected to the rotating shaft at the left end of the wire-taking roller (702); The first clamping assembly (8) comprises a second U-shaped block (801), a bearing block (802), a fixed seat (803), a wire rope (804), a third fixed block (805) and a first cylinder (806); the second U-shaped block (801) is arranged below the first moving block (6); the rear end of the second U-shaped block (801) is fixedly connected to the bearing block (802); the upper end of the bearing block (802) is fixedly connected to the fixed seat (803); the fixed seat (803) is fixedly connected to the wire rope (804); the other end of the wire rope (804) is fixedly connected to the side wall of the take-up roller (702); the opening of the second U-shaped block (801) faces downward; the left and right ends of the second U-shaped block (801) are fixedly connected to the first cylinder (806); the output shaft of the first cylinder (806) passes through the second U-shaped block (801) and is fixedly connected to the first clamping block (807); the first clamping block (807) is U-shaped.

2. The heat treatment equipment based on friction stir welding workpiece according to claim 1 is characterized in that: The stirring mechanism comprises a first motor (201), a first rotating column (202), a first gear ring (203), a second rotating column (204), a second gear ring (205), a third rotating column (206) and a third gear ring (207); the left end of the first quenching box (2) is fixedly connected to the first motor (201); the right end of the output shaft of the first motor (201) passes through the left end of the first motor (201) and is fixedly connected to the first rotating column (202); the side wall of the first rotating column (202) is fixedly connected to the first gear ring (206). A second rotating column (204) is rotatably mounted on the upper right end of the first quenching box (2), a second gear ring (205) is rotatably mounted on the lower right end of the first quenching box (2), a second gear ring (205) is fixedly connected to the side wall of the second rotating column (204), a third gear ring (207) is fixedly connected to the side wall of the second gear ring (205), the third gear ring (207) is meshed with the first gear ring (203), and the third rotating column (206) is meshed with the first gear ring (203).

3. The heat treatment equipment based on friction stir welding workpiece according to claim 2 is characterized in that: The right end of the second rotating column (204) is rotatably mounted on the left and right ends of the second quenching box (3), and the right end of the second gear ring (205) is rotatably mounted on the left and right ends of the second quenching box (3). The side wall of the second rotating column (204) is fixedly connected with uniformly distributed first stirring blocks (301), and the side wall of the second gear ring (205) is fixedly connected with uniformly distributed second stirring blocks (302). Both the first stirring blocks (301) and the second stirring blocks (302) are located inside the second quenching box (3).

4. The heat treatment equipment based on friction stir welding workpiece according to claim 1 is characterized in that: The brake mechanism (5) comprises a support (501), a second motor (502), a screw body (503), a bearing (504), a screw nut (505), a first fixed block (506) and a guide rod (507); the upper end of the first bracket (4) is fixedly connected to the support (501), the right end of one of the supports (501) is fixedly connected to the second motor (502), the output shaft of the second motor (502) passes through one of the supports (501) and is fixedly connected to the screw body (503), the outer wall of the screw body (503) is movably mounted with a screw nut (505), the upper end of the screw nut (505) is fixedly connected to the lower end of the first moving block (6), the upper ends of the two supports (501) are both fixedly connected to the first fixed block (506), the ends of the two first fixed blocks (506) close to each other are commonly fixedly connected to the guide rod (507), and the first moving block (6) is slidably arranged on the side wall of the guide rod (507).

5. The heat treatment equipment based on friction stir welding workpiece according to claim 4 is characterized in that: The left and right ends of the other support (501) are fixedly connected with bearings (504) through the bearings (504), and the left end of the screw rod body (503) is rotatably mounted on the inner wall of the bearing (504).

6. The heat treatment equipment based on friction stir welding workpiece according to claim 1, characterized in that: The front end of the first U-shaped block (701) is fixedly connected to a second fixed block (704), and a sliding rod (705) is slidably provided on the inner wall of the hole penetrating through the upper and lower ends of the second fixed block (704), and the lower end of the sliding rod (705) is fixedly connected to the upper end of the third fixed block (805).

7. The heat treatment equipment based on friction stir welding workpiece according to claim 1 is characterized in that: The clamping moving assembly (9) comprises a first rodless cylinder (902), a third U-shaped block (909), a second cylinder (910) and a second clamping block (911); an L-shaped block (901) is fixedly connected to the upper front end of the first bracket (4); the ends of the two L-shaped blocks (901) that are away from each other are fixedly connected to the first rodless cylinder (902); the upper end of the moving end of the first rodless cylinder (902) is fixedly connected to the first connecting block (903); the side wall of the first connecting block (903) is fixedly connected to the second moving block (904); the upper end of the L-shaped block (901) is provided with a first sliding groove (905); the inner wall of the first sliding groove (905) is slidably provided with a first sliding block (906); 06), the upper end of the first sliding block (906) is fixedly connected to the lower end of the second moving block (904), the side wall of the second moving block (904) is fixedly connected to a fourth motor (907), the output shaft of the fourth motor (907) passes through the second moving block (904) and is fixedly connected to a rotating block (908), the rear end of the rotating block (908) is fixedly connected to a third U-shaped block (909), the left and right ends of the third U-shaped block (909) are fixedly connected to a second cylinder (910), the output shaft of the second cylinder (910) passes through the third U-shaped block (909) and is fixedly connected to a second clamping block (911), and a workpiece body (912) is placed between the two second clamping blocks (911).

8. The heat treatment equipment based on friction stir welding workpiece according to claim 1, characterized in that: The material return assembly (11) comprises a third bracket (1101), a third cylinder (1102) and a push pin (1103); the third bracket (1101) is fixedly connected to the upper rear end of the first bracket (4), the third cylinder (1102) is fixedly connected to the rear end of the third bracket (1101), the front end of the output shaft of the third cylinder (1102) passes through the third bracket (1101) and is fixedly connected to the push pin (1103), and the push pin (1103) corresponds to the workpiece body (912).

9. The heat treatment equipment based on friction stir welding workpiece according to claim 1, characterized in that: The tempering mechanism (10) comprises a fourth bracket (12), a protective block (13) and a medium-frequency induction coil (18); two fourth brackets (12) are fixedly connected to the front edge of the upper end of the bottom plate (1); the side end of the fourth bracket (12) is fixedly connected to the protective block (13); the side end of the protective block (13) is fixedly connected to the second rodless cylinder (14); a second slide groove (15) is provided at the upper end of the protective block (13); a second slider (16) is slidably provided on the inner wall of the second slide groove (15); the movable end of the second rodless cylinder (14) is fixedly connected to the side end of the second slider (16); one end of the second slider (16) located inside the protective block (13) is fixedly connected to a heating tube (17); and the inner wall of the heating tube (17) is fixedly connected to the medium-frequency induction coil (18).

10. A processing process based on a heat treatment device for a stir friction welding workpiece, characterized in that It comprises a heat treatment device based on stir friction welding workpiece according to any one of claims 1 to 9, and its process steps are as follows: Step 1: using the clamping and moving assembly (9) to clamp and move the workpiece body (912), moving the workpiece body (912) between the two first clamping blocks (807), opening two first cylinders (806) arranged opposite to each other so that the two first clamping blocks (807) are close to each other, and the workpiece body (912) is clamped and fixed; Step 2: Then, the third motor (703) is turned on to rotate the wire take-up roller (702), and the wire rope (804) is wound on the side wall of the wire take-up roller (702). The second U-shaped block (801) is lowered into the first quenching box (2), and the friction welding end is immersed in the water in the first quenching box (2), so that the friction welding end on the workpiece body (912) can be cooled; Step 3: Then, the lifting assembly (7) is opened again to lift the first clamping assembly (8) upwards so that the workpiece body (912) and the return assembly (11) correspond to each other, the first clamping assembly (8) is released from squeezing the workpiece body (912), the first clamping assembly (8) is kept in position limiting the workpiece body (912), and then the return assembly (11) is opened to push the workpiece body (912) forward into the clamping moving assembly (9), and the clamping moving assembly (9) is opened to rotate the workpiece body (912) into the interior of the tempering mechanism (10); Step 4: Then, the second rodless cylinder (14) is turned on to raise and lower the heating cylinder (17), and the intermediate frequency induction coil (18) is turned on to temper the quenched workpiece, and then the tempering mechanism (10) is closed, and the clamping moving assembly (9) is turned on to remove the workpiece body (912) and allow the workpiece body (912) to cool naturally; Step 5: When a workpiece is tempered and heated in the tempering mechanism (10), the braking mechanism (5) is turned on to move the first moving block (6) to another clamping moving assembly (9), so that the next workpiece can be quenched and tempered.

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