Blade disc vacuum electron beam welding device and method of auxiliary heating device

Abstract

The invention discloses a blade disc vacuum electron beam welding device and method of an auxiliary heating device, and belongs to the technical field of electron beam welding devices. After welding is completed, a blade disc welding state analysis model and a blade disc welding quality evaluation model are constructed according to the defect proportion, the temperature drop speed and the balance analysis result of the welding position of the blade disc; a blade disc welding state analysis coefficient and a blade disc welding quality evaluation coefficient are output through a blade disc welding state analysis model and a blade disc welding quality evaluation model, and the temperature rise speed, the temperature drop speed and the abutting force are adjusted according to the blade disc welding state analysis coefficient and the blade disc welding quality evaluation coefficient; and therefore, the welding quality during batch welding of the blade discs is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electron beam welding devices, and in particular relates to a vacuum electron beam welding device and method for a blade disk of an auxiliary heating device. Background Art

[0002] Electron beam welding (EBW) is a welding technology that uses a high-energy electron beam to heat and melt metal workpieces for connection. It has the advantages of high precision, high speed and deep penetration, and is widely used in high-strength and high-precision welding requirements.

[0003] In order to improve the welding accuracy of the blade disc, it is generally necessary to assemble the blade disc accurately. During assembly, the pressure between the blade and the drum, the preheating temperature rise rate of the blade disc before welding, and the temperature drop rate of the blade disc after welding will all affect the welding quality of the blade disc. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a vacuum electron beam welding device and method for a blade disk of an auxiliary heating device, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vacuum electron beam welding device for a blade disk of an auxiliary heating device, comprising a device body, an electron beam welding device, a door body and a vacuum device, and also comprising: A seat body is installed inside and outside the device body and sleeved with bearings, and a first cavity and a second cavity are opened inside the seat body, the first cavity and the second cavity are connected, and a first valve member is installed at the connection point; The temperature control mechanism is located on the outer circumference of the bearing and is used to adjust the temperature of the blade disk; The drum bearing mechanism is installed on the base body to bear the drum of the blade disk; The blade bearing assembly is installed at the upper end of the seat body, bearing the blades of the blade disk and causing the blades to contact the drum; The drum positioning mechanism is installed on the base body to center the drum to cooperate with the blade bearing assembly to complete the assembly of the blade disk; A first rotating assembly is mounted on the device body and is used to drive the seat body to rotate; A second rotating assembly is mounted on the base body and is used to drive the drum positioning mechanism to rotate so as to cooperate with the drum positioning mechanism to perform a balance analysis on the blade disk; An information acquisition module is used to obtain status data of the blade disk before and after welding, wherein the status data includes the temperature rise rate when the blade disk is preheated before welding, the pressure of the blade on the drum, the defect ratio of the welding part of the blade disk after welding, the temperature drop rate and the balance analysis result. The balance analysis result of the blade disk is the resistance force of the blade disk on the drum positioning mechanism when the second rotating assembly drives the drum positioning mechanism to drive the blade disk to rotate; The blade disk welding state analysis module is used to construct a blade disk welding state analysis model, and bring the temperature rise rate information, temperature drop rate information and pressure information into the blade disk welding state analysis model to obtain the blade disk welding state coefficient; The blade disk welding quality assessment module is used to build a blade disk welding quality assessment model, bring the resistance force information and the proportion of welding defects into the blade disk welding quality assessment model, and obtain the blade disk welding quality assessment coefficient; A processing module, used for comparing the obtained blade disk welding state coefficient and blade disk welding quality assessment coefficient with corresponding threshold values ​​and forming control information; The control module adjusts the temperature rise rate, temperature drop rate and pressure of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: Further technical solution: The specific steps for obtaining the blade disk welding state coefficient are: The blade disk welding state model is established, and the temperature rise rate information, temperature drop rate information and pressure information within the corresponding threshold after being regulated by the control module are dimensionlessly processed and imported into the blade disk welding state model, and then the blade disk welding state coefficient is output. The blade disk welding state model is expressed as: , Among them, YT (F, T UP， T DOWN ) represents the blade welding state coefficient, F represents the pressure information, T UP Indicates the temperature rise rate, T DOWN Indicates the temperature drop rate, is the influence factor of pressure on the proportion of welding defects, is the influencing factor of temperature rise rate on the proportion of welding defects, is the influencing factor of temperature drop rate on the proportion of welding defects.

[0007] Further technical solution: The specific steps to obtain the blade disk welding quality evaluation coefficient are: A blade disc welding quality assessment model is established, and the resistance index, welding defect ratio and blade disc welding state coefficient are introduced into the blade disc welding quality assessment model, and the blade disc welding quality assessment coefficient is output. The obtained blade disc welding quality assessment coefficient is compared with the blade disc welding quality assessment coefficient threshold. If the blade disc welding quality assessment coefficient is within the blade disc welding quality assessment coefficient threshold, it indicates that the blade disc welding quality is qualified, otherwise it is unqualified. At this time, control information for regulating the blade disc welding state coefficient is formed. The blade disc welding quality assessment model is expressed as: , Among them, YZ(F D ,Q) is expressed as the blade disk welding quality assessment coefficient, YT (F, T UP， T DOWN ) represents the blade welding condition coefficient, F D represents the resistance index, Q represents the proportion of welding defects, , All are weight coefficients; The resistance force index is the ratio of the current resistance force to the maximum resistance force threshold, and the welding defect ratio is the ratio of the welding defect area to the welding area.

[0008] Further technical solution: the temperature control mechanism includes a rotating seat, a temperature control device, an arc-shaped mounting plate, a support plate, a third linear motion member, a first motor, a first gear and a second gear. The rotating seat is rotatably connected to the device body, the temperature control device is embedded and mounted on the arc-shaped mounting plate, the arc-shaped mounting plate is fixedly connected to the support plate, the support plate slides in cooperation with a limiting slide groove provided on the rotating seat, the third linear motion member is mounted on the rotating seat and its output shaft is fixedly connected to the support plate, a bearing sleeved on the seat body is embedded and mounted on the inner side of the rotating seat, the first gear is sleeved on the lower end of the rotating seat and fixedly connected to the rotating seat, the first motor is detachably mounted on the lower end of the device body, and a second gear meshing with the first gear is mounted on the output shaft of the first motor.

[0009] Further technical solution: The rotating drum supporting mechanism includes a supporting plate, a first push rod, a first spring, a first piston plate, a second piston plate and a first linear motion part. The supporting plate is embedded in the base body and slidably cooperates with the base body. One end of the first push rod extends into the second cavity and slidably cooperates with the second cavity. The upper end of the first push rod is fixedly connected to the supporting plate, and the lower end of the first push rod is fixedly connected to the first piston plate slidably arranged in the second cavity. The first spring is sleeved on the first push rod and its two ends are fixedly connected to the first piston plate and the inner wall of the second cavity. The second piston plate slidably cooperates with the first cavity. The first linear motion part is located in the first cavity and its output shaft is fixedly connected to the second piston plate. The lower end of the first linear motion part is fixedly connected to the base body.

[0010] Further technical solution: The drum positioning mechanism includes a hollow rotating shaft, a mounting plate, an arc-shaped pressure plate, an arc-shaped connecting plate, a first pressure sensor, a connecting rod, a third piston plate, a guide rod and a second spring. The hollow rotating shaft is rotatably mounted on the seat body and is connected to the first cavity. A second valve component is embedded and installed in the first cavity. The mounting plate is fixedly mounted on the upper end of the hollow rotating shaft and is connected to the hollow rotating shaft. The arc-shaped pressure plate is fixedly connected to the first pressure sensor fixedly connected to the arc-shaped connecting plate. The arc-shaped connecting plate is fixedly connected to the connecting rod. One end of the connecting rod extends into the third cavity opened on the mounting plate and slides with the mounting plate. The connecting rod is fixedly connected to the third piston plate slidably arranged in the third cavity. A guide rod that slides with the third piston plate is installed in the third cavity. The second spring is sleeved on the guide rod and its two ends are fixedly connected to the third piston plate and the inner wall of the third cavity accordingly.

[0011] Further technical solution: The blade disk bearing assembly includes an annular disk, a blade seat, a second linear moving part and an arc plate. The annular disk is sleeved on the upper end of the seat body and is detachably mounted on the seat body. A plurality of blade seats are evenly mounted on the annular disk in an annular shape. The blade seat is provided with a blade groove for placing blades. The second linear moving part is embedded in the blade seat. The output shaft of the second linear moving part is fixedly connected to the arc plate. A second pressure sensor is fixedly connected to the inner side of the arc plate. The second pressure sensor is fixedly connected to a pressure plate at one end of the arc plate.

[0012] Further technical solution: The first rotating component includes a rotating column, a second motor, a third gear and a fourth gear. The upper end of the rotating column is fixedly connected to the lower end of the base body, the rotating column is rotatably connected to the device body, the second motor is detachably connected to the device body, and the output shaft of the second motor is fixedly connected to a fourth gear that meshes with the third gear installed on the rotating column.

[0013] Further technical solution: The second rotating assembly includes a third motor, a fifth gear and a sixth gear. The third motor is detachably mounted on the seat body. The sixth gear is fixedly connected to the output shaft of the third motor. The sixth gear is meshed with the fifth gear mounted on the hollow rotating shaft.

[0014] A vacuum electron beam welding method for a blade disk of an auxiliary heating device, using the vacuum electron beam welding device for a blade disk of the auxiliary heating device, comprises the following steps: S1. The technician places the drum on the drum bearing mechanism and adjusts the drum to a preset height through the drum bearing mechanism. At this time, the drum positioning mechanism is started to position the drum, and the blades are installed on the blade bearing assembly and the blade bearing assembly is used to push the blades against the drum to complete the welding assembly of the blade disk; S2. The device body is vacuumed by using a vacuum device installed on the device body, and the temperature control mechanism is started to preheat the blade disk before welding. The temperature rise rate of the blade disk is obtained by using a temperature sensor installed on the upper end of the inner wall of the device body. After the temperature of the blade disk reaches the preset preheating temperature, the first rotating assembly is started to drive the seat body to rotate, thereby driving the blade disk assembled before welding to change its position in the vertical direction, so as to provide the electron beam welding device for welding; S3, after welding is completed, the temperature control mechanism is started again to control the cooling speed of the blade disk after welding, and the temperature drop speed is obtained through the temperature sensor. After welding is completed, the rotary drum positioning mechanism is reset and the rotary drum bearing mechanism is started to push the blade disk after welding to perform linear movement in the vertical direction until the blade disk is separated from the blade disk bearing assembly; S4, start the drum positioning mechanism to limit the drum, and start the second rotating component to drive the drum positioning mechanism to push the blade disk to rotate in the vertical direction after welding. If the first pressure sensor in the drum positioning mechanism detects the maximum resistance force of the blade disk on the arc-shaped pressure plate in the drum positioning mechanism when the blade disk rotates, if the maximum resistance force exceeds the resistance force threshold, it indicates that the dynamic balance of the welded blade disk is unqualified. At the same time, a blade disk welding state analysis model is constructed, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. Construct a blade disk welding state analysis model, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. The information is brought into the blade disc welding state analysis model to obtain the blade disc welding state coefficient, and a blade disc welding quality assessment model is constructed. The resistance force information and the proportion of defects at the welding point are brought into the blade disc welding quality assessment model to obtain the blade disc welding quality assessment coefficient. If the obtained blade disc welding state coefficient and the corresponding threshold of the blade disc welding quality assessment coefficient are compared and control information is not formed under the state of the corresponding threshold, the control module adjusts the temperature rise rate, temperature drop rate and resistance force of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

[0015] The present invention provides a vacuum electron beam welding device and method for a blade disk of an auxiliary heating device, which has the following beneficial effects compared with the prior art: The present invention can carry the drum through the drum bearing mechanism and adjust the drum to a preset height through the drum bearing mechanism. At this time, the drum positioning mechanism is started to position the drum, and the blades are installed on the blade bearing assembly and the blade bearing assembly is used to push the blades to contact the drum, so as to complete the welding assembly of the blade disk. The present invention can use the temperature control mechanism to control the temperature of the assembled blade disk before and after welding, so as to improve the welding quality of the blade disk; The present invention can start the drum positioning mechanism to limit the drum and resist, and start the second rotating assembly to drive the drum positioning mechanism to push the blade disk after welding to rotate in the vertical direction. If the first pressure sensor in the drum positioning mechanism detects the maximum resistance force of the blade disk on the arc-shaped resistance plate in the drum positioning mechanism when the blade disk rotates, if the maximum resistance force exceeds the resistance force threshold, it indicates that the dynamic balance of the welded blade disk is unqualified, that is, the blade disk after welding can be quickly tested for dynamic balance to adjust the welding parameters. The present invention can construct a blade disc welding state analysis model and a blade disc welding quality assessment model through the temperature rise rate when the blade disc is preheated before welding, the resistance force of the blade on the rotating drum, the defect proportion of the welding part of the blade disc, the temperature drop rate and the balance analysis result after welding (the balance analysis result of the blade disc is the resistance force of the blade disc on the rotating drum positioning mechanism when the second rotating component drives the rotating drum positioning mechanism to drive the blade disc to rotate), and output the blade disc welding state analysis coefficient and the blade disc welding quality assessment coefficient through the blade disc welding state analysis model and the blade disc welding quality assessment model, adjust the temperature rise rate, temperature drop rate and resistance force according to the blade disc welding state analysis coefficient and the blade disc welding quality assessment coefficient, so as to improve the welding quality when welding blade discs in batches. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the temperature control mechanism of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the blade bearing assembly and the first rotating assembly of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the drum bearing mechanism, the first rotating assembly and the second rotating assembly of the present invention.

[0021] Figure 6 It is a structural schematic diagram of the drum positioning mechanism of the present invention.

[0022] Notes on reference numerals: 1. device body; 2. electron beam welding device; 3. door body; 4. vacuum device; 5. seat body; 501. first cavity; 502. second cavity; 6. drum bearing mechanism; 601. bearing plate; 602. first push rod; 603. first spring; 604. first piston plate; 605. second piston plate; 606. first linear moving part; 7. blade bearing assembly; 701. ring plate; 702. blade seat; 703. second linear moving part; 704. arc plate; 8. temperature control mechanism; 801. rotating seat; 802. temperature control device; 803. arc mounting plate; 804. support plate; 805. third linear moving part; 806, first motor; 807, first gear; 808, second gear; 9, first rotating assembly; 901, rotating column; 902, second motor; 903, third gear; 904, fourth gear; 10, rotating drum positioning mechanism; 1001, hollow rotating shaft; 1002, mounting plate; 1003, arc-shaped pressure plate; 1004, arc-shaped connecting plate; 1005, first pressure sensor; 1006, connecting rod; 1007, third piston plate; 1008, guide rod; 1009, second spring; 11, second rotating assembly; 1101, third motor; 1102, fifth gear; 1103, sixth gear; 12, rotating drum; 13, blades. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] See also Figure 1 to Figure 6 , provided in one embodiment of the present invention, is a vacuum electron beam welding device for a blade disk of an auxiliary heating device, comprising a device body 1, an electron beam welding device 2, a door body 3 and a vacuum device 4, wherein the electron beam welding device 2 is mounted on the top of the device body 1 and the welding end extends into the device body 1, the door body 3 is movably mounted on the front end of the device body 1, and the vacuum device 4 is mounted on the rear end of the device body 1, and further comprising: The seat body 5 is installed inside and outside the device body 1 and is sleeved with bearings (not marked in the figure), and a first cavity 501 and a second cavity 502 are opened therein, and the first cavity 501 and the second cavity 502 are connected, and a first valve member (not marked in the figure) is installed at the connection point; The temperature control mechanism 8 is installed in the device body 1 and is located on the outer circumference of the bearing, and is used to adjust the temperature of the blade disk; The drum bearing mechanism 6 is mounted on the base 5 to bear the drum 12 of the blade disk; The blade bearing assembly 7 is mounted on the upper end of the seat body 5 to bear the blades 13 of the blade disk and to cause the blades 13 to contact the drum 12; The drum positioning mechanism 10 is installed on the base 5 to perform center positioning on the drum 12 to cooperate with the blade bearing assembly 7 to complete the assembly of the blade disk; A first rotating assembly 9, mounted on the device body 1, for driving the seat body 5 to rotate; The second rotating assembly 11 is mounted on the base 5 and is used to drive the drum positioning mechanism 10 to rotate so as to cooperate with the drum positioning mechanism 10 to perform a balance analysis on the blade disk; An information acquisition module is used to obtain status data of the blade disk before and after welding, wherein the status data includes the temperature rise rate when the blade disk is preheated before welding, the pressure of the blade 13 on the drum 12 before welding, the defect ratio of the welding part of the blade disk after welding, the cooling temperature drop rate and the balance analysis result. The balance analysis result of the blade disk is the resistance force of the blade disk on the drum positioning mechanism 10 when the second rotating component 11 drives the drum positioning mechanism 10 to drive the blade disk to rotate; The blade disk welding state analysis module is used to construct a blade disk welding state analysis model, and bring the temperature rise rate information, temperature drop rate information and pressure information into the blade disk welding state analysis model to obtain the blade disk welding state coefficient; The blade disk welding quality assessment module is used to build a blade disk welding quality assessment model, bring the resistance force information and the proportion of welding defects into the blade disk welding quality assessment model, and obtain the blade disk welding quality assessment coefficient; A processing module, used for comparing the corresponding thresholds of the blade disk welding state coefficient and the blade disk welding quality assessment coefficient to form control information; The control module adjusts the temperature rise rate, temperature drop rate and pressure of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

[0026] Preferably, the specific steps of obtaining the blade disk welding state coefficient are: The blade disk welding state model is established, and the temperature rise rate information, temperature drop rate information and pressure information within the corresponding threshold after being regulated by the control module are dimensionlessly processed and imported into the blade disk welding state model, and then the blade disk welding state coefficient is output. The blade disk welding state model is expressed as: , Among them, YT (F, T UP， T DOWN) represents the blade welding state coefficient, F represents the pressure information, T UP Indicates the temperature rise rate, T DOWN Indicates the temperature drop rate, The influence factors of pressure on the proportion of welding defects, is the influencing factor of temperature rise rate on the proportion of welding defects, The influencing factor of temperature drop rate on the proportion of welding defects; Among them, the influencing factors of pressure on the proportion of welding defects, the influencing factors of temperature rise rate on the proportion of welding defects and the influencing factors of temperature drop rate on welding defects can be obtained through multiple analyses using the analysis software SPSS.

[0027] Preferably, the specific steps of obtaining the blade disk welding quality assessment coefficient are: A blade disc welding quality assessment model is established, and the resistance index, welding defect ratio and blade disc welding state coefficient are introduced into the blade disc welding quality assessment model, and the blade disc welding quality assessment coefficient is output. The obtained blade disc welding quality assessment coefficient is compared with the blade disc welding quality assessment coefficient threshold. If the blade disc welding quality assessment coefficient is within the blade disc welding quality assessment coefficient threshold, it indicates that the blade disc welding quality is qualified, otherwise it is unqualified. At this time, control information for regulating the blade disc welding state coefficient is formed. The blade disc welding quality assessment model is expressed as: , Among them, YZ(F D ,Q) is expressed as the blade disk welding quality assessment coefficient, YT (F, T UP， T DOWN ) represents the blade welding condition coefficient, F D represents the resistance index, Q represents the proportion of welding defects, , are all weight coefficients; wherein, the resistance force index is the ratio of the current resistance force to the maximum resistance force threshold, and the welding defect proportion is the ratio of the welding defect area to the welding area.

[0028] See also Figure 2 as well as Figure 3Preferably, the temperature control mechanism 8 includes a rotating seat 801, a temperature control device 802, an arc-shaped mounting plate 803, a support plate 804, a third linear motion member 805, a first motor 806, a first gear 807 and a second gear 808. The rotating seat 801 is rotatably connected to the device body 1, the temperature control device 802 is embedded and installed on the arc-shaped mounting plate 803, the arc-shaped mounting plate 803 is fixedly connected to the support plate 804, the support plate 804 is slidably matched with a limiting slide groove (not shown in the figure) provided on the rotating seat 801, the third linear motion member 805 is installed on the rotating seat 801 and its output shaft is fixedly connected to the support plate 804, the inner side of the rotating seat 801 is embedded and installed with a bearing sleeved on the seat body 5, the first gear 807 is sleeved on the lower end of the rotating seat 801 and is fixedly connected to the rotating seat 801 The first motor 806 is detachably mounted at the lower end of the device body 1, and a second gear 808 meshing with the first gear 807 is mounted on the output shaft of the first motor 806. The purpose of this arrangement is to use a plurality of temperature control devices 802 distributed in a ring to adjust the temperature of the leaf disk, and at the same time, the distance between the temperature control device 802 and the leaf disk can be adjusted by the third linear motion member 805, and the temperature of the leaf disk can be adjusted by adjusting the power of the temperature control device 802. At the same time, the first motor 806 can drive the second gear 808 to rotate in the vertical direction, and then the second gear 808 can be used to push the first gear 807 meshing with it to drive the rotating seat 801 to rotate in the vertical direction, thereby driving a plurality of temperature control devices 802 to rotate around the leaf disk, thereby achieving the technical effect of uniformly adjusting the temperature of the leaf disk.

[0029] See also Figure 2 as well as Figure 5Preferably, the drum bearing mechanism 6 includes a bearing plate 601, a first push rod 602, a first spring 603, a first piston plate 604, a second piston plate 605 and a first linear motion member 606. The bearing plate 601 is embedded in the seat body 5 and slidably cooperates with the seat body 5. One end of the first push rod 602 extends into the second cavity 502 and slidably cooperates with the second cavity 502. The upper end of the first push rod 602 is fixedly connected to the bearing plate 601, and the lower end of the first push rod 602 is fixedly connected to the first piston plate 604 slidably arranged in the second cavity 502. The first spring 603 is sleeved on the first push rod 602 and its two ends are fixedly connected to the first piston plate 604 and the inner wall of the second cavity 502. The second piston plate 605 slidably cooperates with the first cavity 501. The first linear motion member 606 is a plurality of linear motion members, each of which is a plurality of linear motion members. The moving part 606 is located in the first cavity 501 and its output shaft is fixedly connected to the second piston plate 605. The lower end of the first linear moving part 606 is fixedly connected to the base body 5. The purpose of this arrangement is to use the supporting plate 601 to support the rotating drum 12, and at the same time, it can push the second piston plate 605 to perform linear movement along the first cavity 501 by starting the first linear moving part 606, and then use the second piston plate 605 to push the liquid in the first cavity 501 and the second cavity 502, so that the liquid pushes the first piston plate 604 to perform linear movement along the second cavity 502, and then use the first piston plate 604 to push the first push rod 602 to drive the supporting plate 601 to perform linear movement in the vertical direction, thereby achieving the technical effect of adjusting the height of the rotating drum 12 located on the supporting plate 601.

[0030] See also Figure 2 , Figure 5 as well as Figure 6Preferably, the drum positioning mechanism 10 comprises a hollow shaft 1001, a mounting plate 1002, an arc-shaped pressure plate 1003, an arc-shaped connecting plate 1004, a first pressure sensor 1005, a connecting rod 1006, a third piston plate 1007, a guide rod 1008 and a second spring 1009. The hollow shaft 1001 is rotatably mounted on the seat body 5 and is connected to the first cavity 501. The second valve member is embedded in the first cavity 501. The mounting plate 1002 is fixedly mounted. The arc-shaped pressure plate 1003 is fixedly connected to the first pressure sensor 1005 fixedly connected to the arc-shaped connecting plate 1004, and the arc-shaped connecting plate 1004 is fixedly connected to the connecting rod 1006. One end of the connecting rod 1006 extends into a third cavity (not shown) provided on the mounting plate 1002 and slidably cooperates with the mounting plate 1002. The connecting rod 1006 is slidably arranged in the third cavity. The three piston plates 1007 are fixedly connected, and a guide rod 1008 that slides with the third piston plate 1007 is installed in the third cavity. The second spring 1009 is sleeved on the guide rod 1008 and the two ends are fixedly connected to the third piston plate 1007 and the inner wall of the third cavity correspondingly. The second valve member is opened and the first valve member is closed. At this time, the first linear motion member 606 is started to push the second piston plate 605 to perform linear motion in the vertical direction along the first cavity 501. The carrying plate 601 introduces the liquid in the first cavity 501 and the hollow rotating shaft 1001 into the third cavity, and uses the liquid introduced into the third cavity to push the third piston plate 1007 to slide along the guide rod 1008. At this time, the third piston plate 1007 pushes the connecting rod 1006 to drive the arc-shaped connecting plate 1004 to perform linear motion in the horizontal direction. The arc-shaped connecting plate 1004 further achieves the technical effect of positioning the rotating drum 12 and limiting its position by pushing the arc-shaped pressure plate 1003 to contact the inner wall of the rotating drum 12.

[0031] See also Figure 2 as well as Figure 4Preferably, the blade disk bearing assembly includes a ring disk 701, a blade seat 702, a second linear motion member 703 and an arc plate 704, wherein the ring disk 701 is sleeved on the upper end of the seat body 5 and is detachably mounted on the seat body 5, a plurality of blade seats 702 are evenly mounted on the ring disk 701 in an annular shape, a blade groove (not shown in the figure) for placing the blade 13 is opened on the blade seat 702, the second linear motion member 703 is embedded and installed in the blade seat 702, the output shaft of the second linear motion member 703 is fixedly connected to the arc plate 704, and the inner side of the arc plate 704 A second pressure sensor (not marked in the figure) is fixedly connected, and one end of the arc plate 704 of the second pressure sensor principle is fixedly connected to a pressure plate (not marked in the figure). The purpose of this arrangement is to use the second linear motion member 703 to pull the arc plate 704 to drive the pressure plate to move linearly, thereby causing the welding end of the blade 13 located in the blade groove to contact the rotating drum 12, thereby completing the pre-welding assembly of the blade disk, and using the second pressure sensor to detect the pressure between the blade 13 and the rotating drum 12, so as to cause the pressure between the blade 13 and the rotating drum 12 to be within the pressure threshold.

[0032] See also Figure 2 as well as Figure 4 Preferably, the first rotating component 9 includes a rotating column 901, a second motor 902, a third gear 903 and a fourth gear 904, the upper end of the rotating column 901 is fixedly connected to the lower end of the seat body 5, the rotating column 901 is rotatably connected to the device body 1, the second motor 902 is detachably connected to the device body 1, and the output shaft of the second motor 902 is fixedly connected with a fourth gear 904 meshing with the third gear 903 installed on the rotating column 901. The purpose of this arrangement is to use the second motor 902 to push the fourth gear 904 to perform a rotational movement in the vertical direction, and then use the fourth gear 904 to push the rotating column 901 through the third gear 903 meshing therewith to drive the seat body 5 to perform a rotational movement in the vertical direction, and then drive the blade disk assembled before welding to rotate, thereby achieving the technical effect of providing multiple welding positions of the blade disk with the electron beam welding device 2 for welding in sequence.

[0033] See also Figure 2 , Figure 5 as well as Figure 6Preferably, the second rotating assembly 11 includes a third motor 1101, a fifth gear 1102 and a sixth gear 1103. The third motor 1101 is detachably mounted on the seat body 5. The sixth gear 1103 is fixedly connected to the output shaft of the third motor 1101. The sixth gear 1103 is meshed with the fifth gear 1102 mounted on the hollow rotating shaft 1001. The purpose of this arrangement is that after the blade disk is welded, the drum bearing mechanism 6 is used to push the blade disk to adjust its position in the vertical direction, so that the blade disk is separated from the blade bearing assembly 7. At this time, the drum positioning mechanism 10 is started to limit the drum 12, so that the drum 12 can follow the drum positioning mechanism 10 for vertical adjustment. The third motor 1101 is started to drive the sixth gear 1103 to rotate in the vertical direction. The sixth gear 1103 pushes the hollow shaft 1001 to rotate in the vertical direction through the fifth gear 1102 meshing therewith, thereby achieving the technical effect of driving the blade disk to rotate in the vertical direction. At the same time, the first pressure sensors 1005 arranged in the drum positioning mechanism 10 can record the resistance force (the resistance force collected by the information collection module is the maximum resistance force collected by the first pressure sensors 1005) generated by the blade disk on the mounting disk 1002 when the blade disk rotates (if there is a dynamic balance defect in the blade disk, the data detected by the first pressure sensors 1005 will change) In the embodiment of the present invention, the technician places the drum 12 on the drum bearing mechanism 6 and adjusts the drum 12 to a preset height through the drum bearing mechanism 6. At this time, the drum positioning mechanism 10 is started to position the drum 12, and the blade 13 is installed on the blade bearing assembly 7 and the blade bearing assembly 7 is used to push the blade 13 to contact the drum 12 to complete the welding assembly of the blade disk. At this time, the vacuum device 4 installed on the device body 1 is used to vacuum the device body 1, and the temperature control mechanism 8 is started to preheat the blade disk before welding, and the temperature sensor installed on the upper end of the inner wall of the device body 1 is used to obtain the temperature rise rate of the blade disk. When the temperature of the blade disk reaches the preset preheating temperature After that, the first rotating assembly 9 is started to drive the seat body 5 to rotate, thereby driving the blade disk assembled before welding to change its position in the vertical direction for the electron beam welding device 2 to perform welding. After the welding is completed, the temperature control mechanism 8 is started again to control the cooling speed of the blade disk after welding, and the temperature drop speed is obtained through the temperature sensor. After the welding is completed, the drum positioning mechanism 10 is reset and the drum bearing mechanism 6 is started to push the blade disk after welding to perform linear movement in the vertical direction until the blade disk is separated from the blade disk bearing assembly. At this time, the drum positioning mechanism 10 is started to limit the drum 12, and the second rotating assembly 11 is started to drive the drum positioning mechanism 10 to push After the dynamic welding is completed, the blade disk rotates in the vertical direction. If the first pressure sensor 1005 in the drum positioning mechanism 10 detects the maximum resistance force of the blade disk on the arc-shaped pressure plate 1003 in the drum positioning mechanism 10 when the blade disk rotates, if the maximum resistance force exceeds the resistance force threshold, it indicates that the dynamic balance of the welded blade disk is unqualified. At the same time, a blade disk welding state analysis model is constructed, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. A blade disk welding state analysis model is constructed, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. , construct a blade disc welding quality assessment model, bring the resistance force information and the proportion of welding defects into the blade disc welding quality assessment model, and obtain the blade disc welding quality assessment coefficient. If the obtained blade disc welding state coefficient and the corresponding threshold of the blade disc welding quality assessment coefficient are compared and the control information is not formed under the state of the corresponding threshold, the control module adjusts the temperature rise rate, temperature drop rate and resistance force of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold, so as to achieve the technical effect of improving the blade disc welding rate and quality.

[0034] A vacuum electron beam welding method for a blade disk of an auxiliary heating device, using the vacuum electron beam welding device for a blade disk of the auxiliary heating device, comprises the following steps: S1. The technician places the drum 12 on the drum bearing mechanism 6 and adjusts the drum 12 to a preset height through the drum bearing mechanism 6. At this time, the drum positioning mechanism 10 is started to position the drum 12, and the blades 13 are installed on the blade bearing assembly 7 and the blade bearing assembly 7 is used to push the blades 13 against the drum 12, thereby completing the welding assembly of the blade disk; S2. The device body 1 is vacuumed by using a vacuum device installed on the device body 1, and the temperature control mechanism 8 is started to preheat the blade disk before welding. The temperature rise rate of the blade disk is obtained by using a temperature sensor installed on the upper end of the inner wall of the device body 1. After the temperature of the blade disk reaches the preset preheating temperature, the first rotating component 9 is started to drive the seat body 5 to rotate, thereby driving the blade disk assembled before welding to change its position in the vertical direction, so as to provide the electron beam welding device 2 for welding; S3, after welding is completed, the temperature control mechanism 8 is started again to control the cooling speed of the blade disk after welding, and the temperature drop speed is obtained through the temperature sensor. After welding is completed, the drum positioning mechanism 10 is reset and the drum bearing mechanism 6 is started to push the blade disk after welding to perform linear movement in the vertical direction until the blade disk is separated from the blade disk bearing assembly; S4, start the drum positioning mechanism 10 to limit the drum 12, and start the second rotating component 11 to drive the drum positioning mechanism 10 to push the blade disk after welding to rotate in the vertical direction. If the first pressure sensor 1005 in the drum positioning mechanism 10 detects the maximum resistance force of the blade disk on the arc-shaped pressure plate 1003 in the drum positioning mechanism 10 when the blade disk rotates, if the maximum resistance force exceeds the resistance force threshold, it indicates that the dynamic balance of the welded blade disk is unqualified. At the same time, a blade disk welding state analysis model is constructed, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient to construct the blade disk welding state analysis model, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient to construct the blade disk welding state analysis model. The speed information and the resistance force information are brought into the blade disc welding state analysis model to obtain the blade disc welding state coefficient, and a blade disc welding quality assessment model is constructed. The resistance force information and the proportion of defects at the welding point are brought into the blade disc welding quality assessment model to obtain the blade disc welding quality assessment coefficient. If the obtained blade disc welding state coefficient and the corresponding threshold of the blade disc welding quality assessment coefficient are compared and control information is not formed under the state of the corresponding threshold, the control module adjusts the temperature rise rate, temperature drop rate and resistance force of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum electron beam welding device for blade disks of an auxiliary heating device, comprising a device body, an electron beam welding device, a door body and a vacuum device, characterized in that: Also includes: A seat body is installed inside and outside the device body and sleeved with bearings, and a first cavity and a second cavity are opened inside the seat body, the first cavity and the second cavity are connected, and a first valve member is installed at the connection point; The temperature control mechanism is located on the outer circumference of the bearing and is used to adjust the temperature of the blade disk; The drum bearing mechanism is installed on the base body to bear the drum of the blade disk; The blade bearing assembly is installed at the upper end of the seat body, bearing the blades of the blade disk and causing the blades to contact the drum; The drum positioning mechanism is installed on the base body to center the drum to cooperate with the blade bearing assembly to complete the assembly of the blade disk; A first rotating assembly is mounted on the device body and is used to drive the seat body to rotate; A second rotating assembly is mounted on the base body and is used to drive the drum positioning mechanism to rotate so as to cooperate with the drum positioning mechanism to perform a balance analysis on the blade disk; An information acquisition module is used to obtain status data of the blade disk before and after welding, wherein the status data includes the temperature rise rate when the blade disk is preheated before welding, the pressure of the blade on the drum, the defect ratio of the welding part of the blade disk after welding, the temperature drop rate and the balance analysis result. The balance analysis result of the blade disk is the resistance force of the blade disk on the drum positioning mechanism when the second rotating assembly drives the drum positioning mechanism to drive the blade disk to rotate; The blade disk welding state analysis module is used to construct a blade disk welding state analysis model, and bring the temperature rise rate information, temperature drop rate information and pressure information into the blade disk welding state analysis model to obtain the blade disk welding state coefficient; The blade disk welding quality assessment module is used to build a blade disk welding quality assessment model, bring the resistance force information and the proportion of welding defects into the blade disk welding quality assessment model, and obtain the blade disk welding quality assessment coefficient; A processing module, used for comparing the obtained blade disk welding state coefficient and blade disk welding quality assessment coefficient with corresponding threshold values ​​and forming control information; The control module adjusts the temperature rise rate, temperature drop rate and pressure of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

2. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1, characterized in that: The specific steps to obtain the blade welding state coefficient are: The blade disk welding state model is established, and the temperature rise rate information, temperature drop rate information and pressure information within the corresponding threshold after being regulated by the control module are dimensionlessly processed and imported into the blade disk welding state model, and then the blade disk welding state coefficient is output. The blade disk welding state model is expressed as: ， Among them, YT (F, T UP , T DOWN ) represents the blade welding state coefficient, F represents the pressure information, T UP Indicates the temperature rise rate, T DOWN Indicates the temperature drop rate, is the influence factor of pressure on the proportion of welding defects, is the influencing factor of temperature rise rate on the proportion of welding defects, is the influencing factor of temperature drop rate on the proportion of welding defects.

3. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 2, characterized in that: The specific steps to obtain the blade disk welding quality assessment coefficient are as follows: A blade disc welding quality assessment model is established, and the resistance index, welding defect ratio and blade disc welding state coefficient are introduced into the blade disc welding quality assessment model, and the blade disc welding quality assessment coefficient is output. The obtained blade disc welding quality assessment coefficient is compared with the blade disc welding quality assessment coefficient threshold. If the blade disc welding quality assessment coefficient is within the blade disc welding quality assessment coefficient threshold, it indicates that the blade disc welding quality is qualified, otherwise it is unqualified. At this time, control information for regulating the blade disc welding state coefficient is formed. The blade disc welding quality assessment model is expressed as: ， Among them, YZ(F D , Q) is expressed as the blade disk welding quality assessment coefficient, YT (F, T UP， T DOWN ) represents the blade welding condition coefficient, F D represents the resistance index, Q represents the proportion of welding defects, , All are weight coefficients; The resistance force index is the ratio of the current resistance force to the maximum resistance force threshold, and the welding defect ratio is the ratio of the welding defect area to the welding area.

4. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1, characterized in that: The temperature control mechanism includes a rotating seat, a temperature control device, an arc-shaped mounting plate, a support plate, a third linear motion member, a first motor, a first gear and a second gear. The rotating seat is rotatably connected to the device body, the temperature control device is embedded and mounted on the arc-shaped mounting plate, the arc-shaped mounting plate is fixedly connected to the support plate, the support plate is slidably matched with a limiting slide groove provided on the rotating seat, the third linear motion member is mounted on the rotating seat and its output shaft is fixedly connected to the support plate, a bearing sleeved on the seat body is embedded and mounted on the inner side of the rotating seat, the first gear is sleeved on the lower end of the rotating seat and fixedly connected to the rotating seat, the first motor is detachably mounted on the lower end of the device body, and a second gear meshing with the first gear is mounted on the output shaft of the first motor.

5. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1, characterized in that: The drum supporting mechanism includes a supporting plate, a first push rod, a first spring, a first piston plate, a second piston plate and a first linear motion member. The supporting plate is embedded in a seat body and slidably cooperates with the seat body. One end of the first push rod extends into the second cavity and slidably cooperates with the second cavity. The upper end of the first push rod is fixedly connected to the supporting plate, and the lower end of the first push rod is fixedly connected to the first piston plate slidably arranged in the second cavity. The first spring is sleeved on the first push rod and its two ends are fixedly connected to the first piston plate and the inner wall of the second cavity. The second piston plate slidably cooperates with the first cavity. The first linear motion member is located in the first cavity and its output shaft is fixedly connected to the second piston plate. The lower end of the first linear motion member is fixedly connected to the seat body.

6. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1 or 5, characterized in that: The drum positioning mechanism includes a hollow rotating shaft, a mounting plate, an arc-shaped pressure plate, an arc-shaped connecting plate, a first pressure sensor, a connecting rod, a third piston plate, a guide rod and a second spring. The hollow rotating shaft is rotatably mounted on the seat body and is communicated with the first cavity. A second valve component is embedded and installed in the first cavity. The mounting plate is fixedly mounted on the upper end of the hollow rotating shaft and is communicated with the hollow rotating shaft. The arc-shaped pressure plate is fixedly connected to the first pressure sensor fixedly connected to the arc-shaped connecting plate. The arc-shaped connecting plate is fixedly connected to the connecting rod. One end of the connecting rod extends into the third cavity opened on the mounting plate and slidably cooperates with the mounting plate. The connecting rod is fixedly connected to the third piston plate slidably arranged in the third cavity. A guide rod slidably cooperates with the third piston plate is installed in the third cavity. The second spring is sleeved on the guide rod and its two ends are fixedly connected to the third piston plate and the inner wall of the third cavity accordingly.

7. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1, characterized in that: The blade disk bearing assembly includes an annular disk, a blade seat, a second linear motion member and an arc plate. The annular disk is sleeved on the upper end of the seat body and is detachably mounted on the seat body. A plurality of blade seats are evenly mounted on the annular disk in an annular shape. The blade seat is provided with a blade groove for placing blades. The second linear motion member is embedded in the blade seat. The output shaft of the second linear motion member is fixedly connected to the arc plate. A second pressure sensor is fixedly connected to the inner side of the arc plate. The second pressure sensor is fixedly connected to a pressure plate at one end of the arc plate.

8. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 1, characterized in that: The first rotating assembly includes a rotating column, a second motor, a third gear and a fourth gear. The upper end of the rotating column is fixedly connected to the lower end of the base body, the rotating column is rotatably connected to the device body, the second motor is detachably connected to the device body, and the output shaft of the second motor is fixedly connected to a fourth gear that meshes with the third gear installed on the rotating column.

9. The vacuum electron beam welding device for blade disks of the auxiliary heating device according to claim 6, characterized in that: The second rotating assembly includes a third motor, a fifth gear and a sixth gear. The third motor is detachably mounted on the seat. The output shaft of the third motor is fixedly connected with the sixth gear, and the sixth gear is meshed with the fifth gear mounted on the hollow rotating shaft.

10. A vacuum electron beam welding method for a blade disk of an auxiliary heating device, using the vacuum electron beam welding device for a blade disk of an auxiliary heating device according to claim 1, characterized in that: The following steps are involved: S1. The technician places the drum on the drum bearing mechanism and adjusts the drum to a preset height through the drum bearing mechanism. At this time, the drum positioning mechanism is started to position the drum, and the blades are installed on the blade bearing assembly and the blade bearing assembly is used to push the blades against the drum to complete the welding assembly of the blade disk; S2. The device body is vacuumed by using a vacuum device installed on the device body, and the temperature control mechanism is started to preheat the blade disk before welding. The temperature rise rate of the blade disk is obtained by using a temperature sensor installed on the upper end of the inner wall of the device body. After the temperature of the blade disk reaches the preset preheating temperature, the first rotating assembly is started to drive the seat body to rotate, thereby driving the blade disk assembled before welding to change its position in the vertical direction, so as to provide the electron beam welding device for welding; S3, after welding is completed, the temperature control mechanism is started again to control the cooling speed of the blade disk after welding, and the temperature drop speed is obtained through the temperature sensor. After welding is completed, the rotary drum positioning mechanism is reset and the rotary drum bearing mechanism is started to push the blade disk after welding to perform linear movement in the vertical direction until the blade disk is separated from the blade disk bearing assembly; S4, start the drum positioning mechanism to limit the drum, and start the second rotating component to drive the drum positioning mechanism to push the blade disk to rotate in the vertical direction after welding. If the first pressure sensor in the drum positioning mechanism detects the maximum resistance force of the blade disk on the arc-shaped pressure plate in the drum positioning mechanism when the blade disk rotates, if the maximum resistance force exceeds the resistance force threshold, it indicates that the dynamic balance of the welded blade disk is unqualified. At the same time, a blade disk welding state analysis model is constructed, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. Construct a blade disk welding state analysis model, and the temperature rise rate information, temperature drop rate information and pressure information are brought into the blade disk welding state analysis model to obtain the blade disk welding state coefficient. The information is brought into the blade disc welding state analysis model to obtain the blade disc welding state coefficient, and a blade disc welding quality assessment model is constructed. The resistance force information and the proportion of defects at the welding point are brought into the blade disc welding quality assessment model to obtain the blade disc welding quality assessment coefficient. If the obtained blade disc welding state coefficient and the corresponding threshold of the blade disc welding quality assessment coefficient are compared and control information is not formed under the state of the corresponding threshold, the control module adjusts the temperature rise rate, temperature drop rate and resistance force of the next blade disc welding according to the control information formed by the processing module, so that the blade disc welding state coefficient is within the blade disc welding state coefficient threshold and the blade disc welding quality assessment coefficient is within the blade disc quality assessment coefficient threshold.

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