Multi-blade combined structure electron beam welding tool and welding method

Abstract

The invention discloses a multi-blade combined structure electron beam welding tool and a welding method, and belongs to the technical field of welding, the multi-blade combined structure electron beam welding tool comprises a sliding table, a base and a rotary drum bearing assembly, and further comprises a rotary drum positioning mechanism for positioning and centering a rotary drum in a multi-blade combined structure; the blade bearing assembly is used for bearing the blades in the multi-blade combined structure and promoting the blades to abut against the rotary drum; the driving assembly drives the rotary drum bearing assembly to adjust the position of the rotary drum in the vertical direction or drives the rotary drum positioning mechanism to abut against the inner wall of the rotary drum; the second rotating assembly drives the rotating drum positioning mechanism to rotate in the vertical direction and is matched with the rotating drum positioning mechanism to detect the balance of the rotating drum or the welded multi-blade combined structure; according to the multi-blade combined structure assembling device, multi-blade combined structures of various specifications can be automatically assembled, and the balance of a rotating drum or the welded multi-blade combined structure by the rotating drum positioning mechanism can be detected, so that the welding efficiency is improved, and the yield is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to an electron beam welding tool and a welding method for a multi-blade combined structure. 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] The multi-blade combined structure electron beam welding tool is a tooling equipment specially used for electron beam welding of multi-blade combined structural parts, which is commonly used in aerospace, energy, precision manufacturing and other industries. This tooling is designed to help accurately position and fix the blade components to ensure the geometric size, shape and welding quality during the welding process.

[0004] The existing electron beam welding tooling for multi-blade combination structures generally opens corresponding slots on a solid column for installing a rotating drum and blades, thereby completing the preliminary assembly of the multi-blade combination structure. The installed multi-blade combination structures are mostly single-specification products, and after welding is completed, the multi-blade combination structure cannot be timely tested for balance.

[0005] A multi-blade combination structure electron beam welding tool and a welding method are proposed, which can automatically assemble multi-blade combination structures of various specifications and can perform balance detection on the multi-blade combination structure after welding. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a multi-blade combined structure electron beam welding tool and a welding method to solve the above problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-blade combined structure electron beam welding tool, including a slide and a base, the center of the lower end of the base is fixedly connected to a main shaft rotatably connected to the slide, and also includes: The drum bearing assembly is installed on the base and is used to bear the drum in the multi-blade combination structure; The drum positioning mechanism is installed on the base and is used to position and center the drum in the multi-blade combination structure; The blade bearing assembly is provided with a plurality of groups and is evenly and annularly mounted on the base, and is used to bear the blades in the multi-blade combination structure and to force the blades to press against the rotating drum; A driving assembly, mounted on the base, for driving the drum bearing assembly to adjust the position of the drum in the vertical direction or driving the drum positioning mechanism to press against the inner wall of the drum; The second rotating assembly is installed on the base, and is used to drive the drum positioning mechanism to rotate in the vertical direction and cooperate with the drum positioning mechanism to detect the balance of the drum or the multi-blade combination structure after welding; The drum positioning mechanism comprises a hollow drum, which is rotatably mounted on a base, the hollow drum is connected to a first cavity provided on the base, a first valve member is embedded in the hollow drum, and further comprises: The resistance component is installed at the upper end of the hollow drum and is used to press against the inner wall of the drum; The first rotating assembly is mounted on the slide and is used to drive the base to drive the drum and the blades to rotate in the vertical direction.

[0008] On the basis of the above technical solution, the present invention also provides the following optional technical solution: Further technical solution: The resistance assembly includes a mounting disk, a first curved plate, a second curved plate, a first push rod, a first piston plate, a guide rod and a first elastic member, the mounting disk being sleeved on the upper end of the hollow cylinder and fixedly connected to the hollow cylinder, a plurality of third cavities which are connected to the internal cavity of the hollow cylinder are opened in the mounting disk, a first piston plate is slidably arranged in the third cavity, the first piston plate is fixedly connected to one end of the first push rod extending into the third cavity, the other end of the first push rod is fixedly connected to the first curved plate, a pressure sensor is fixedly connected to the outer side of the first curved plate, the pressure sensor is fixedly connected to the inner arc wall of the second curved plate, a guide rod is fixedly connected in the third cavity, the first piston plate slidably cooperates with the guide rod, a first elastic member is arranged in the third cavity, and the two ends of the first elastic member are respectively fixedly connected to the inner end of the first piston plate and the inner wall of the third cavity.

[0009] Further technical solution: the drum bearing assembly includes an annular bearing plate, which is slidably matched with the base, and the lower end of the annular bearing plate is fixedly connected to a second push rod, and the lower end of the second push rod extends into a second cavity opened on the base and is slidably matched with the base, and the lower end of the second push rod is fixedly connected to an annular piston plate which is slidably matched with the second cavity, and a second elastic member is arranged between the upper end of the annular piston plate and the upper inner wall of the second cavity, and the second elastic member is fixedly connected to the annular piston plate and the second cavity, and the second cavity is connected to the first cavity opened on the base through a through hole opened on the base, and a second valve member is embedded and installed in the through hole.

[0010] Further technical solution: The driving assembly includes a second piston plate and a second linear moving part, the second piston plate is slidably arranged in the first cavity, the lower end of the second piston plate is fixedly connected to the output shaft of the second linear moving part, and the second linear moving part is fixedly connected to the inner wall of the first cavity.

[0011] Further technical solution: The blade bearing assembly includes a blade placing platform, a first linear moving part and a pressure plate. Several of the blade placing platforms are detachably mounted on the base. The first linear moving part is embedded in the blade placing platform. The pressure plate is fixedly connected to the output shaft of the first linear moving part. A blade placing groove for tilted placement of the blade is provided on the upper portion of the blade placing platform.

[0012] Further technical solution: The first rotating component includes a first motor, a first spur gear and a second spur gear. The first spur gear is sleeved on the output shaft of the first motor and fixedly connected to the output shaft of the first motor. The first spur gear is meshed with the second spur gear sleeved on the main shaft and fixedly connected to the main shaft. The first motor can be detachably mounted on the slide.

[0013] Further technical solution: The second rotating assembly includes a third spur gear, a fourth spur gear and a second motor, the third spur gear is sleeved on the hollow drum and fixedly connected to the hollow drum, the fourth spur gear is fixedly connected to the output shaft of the second motor detachably mounted on the base, and the fourth spur gear is meshed with the third spur gear.

[0014] A multi-blade combined structure electron beam welding method, using the multi-blade combined structure electron beam welding tool, comprises the following steps: S1, placing the drum on the annular carrier plate and sleeved on the outer side of the drum positioning mechanism, opening the second valve member to make the first cavity and the second cavity connected, then starting the second linear motion member to push the liquid in the first cavity and the second cavity to flow under pressure, then the liquid pushes the annular piston plate to move linearly in the vertical direction along the second cavity, so that the annular piston plate drives the second push rod to push the annular carrier plate to move linearly in the vertical direction, and the annular carrier plate pushes the drum to move linearly in the vertical direction until the drum reaches the preset position; S2, close the second valve member and open the first valve member, so that the first cavity and the hollow drum are connected, and then the second linear motion member is started to push the liquid in the first cavity and the hollow drum to flow under pressure, and then the liquid in the first cavity and the hollow drum pushes the first piston plate to slide along the length direction of the guide rod, and the first piston plate pushes the first arc plate to drive the second arc plate to press against the inner wall of the drum, and the plurality of second arc plates are synchronously opened outward to press against the inner wall of the drum to position the drum in the center and limit the position; S3, close the first valve member and open the second valve member, so that the driving assembly drives the annular bearing plate to reset, so that the drum is suspended, and at this time, start the second motor to drive the fourth flat gear to rotate in the vertical direction, and the fourth flat gear drives the hollow drum to rotate through the third flat gear meshing therewith, and the hollow drum drives the drum to rotate in the vertical direction through the friction assembly. If there are defects or uneven quality of the drum body, the centrifugal force detected by the pressure sensor between each group of the first arc plate and the second arc plate will deviate. If the centrifugal force deviation value is greater than the preset centrifugal force deviation threshold, it indicates that the drum quality is unqualified and no welding process is required; S4, replacing the unqualified rotating drum and repeating the above operation until the centrifugal force deviation value of the replaced rotating drum during vertical rotation is within the centrifugal force deviation threshold value; S5, start the driving assembly to cause the annular bearing plate to perform linear movement until the annular bearing plate contacts the bottom of the rotating drum to support the rotating drum, at which time a plurality of blades are placed in the blade placement grooves on the corresponding blade placement platforms, at which time the first linear motion member pulls the pressure plate to perform linear movement in the horizontal direction, and the pressure plate causes the blade to slide relative to the length direction of the blade placement groove by pushing one end of the blade, causing the other end of the blade to press against the outer wall of the rotating drum, completing the preliminary positioning and assembly between the blade and the rotating drum, at which time the first rotating assembly is started to drive the base to rotate, thereby driving the rotating drum that has completed the preliminary positioning and assembly and is located on the rotating drum bearing assembly and the blades located on the blade bearing assembly to perform synchronous rotation in the vertical direction, so that the connection points between the plurality of blades and the rotating drum can be exposed to the field of view of the electron beam welding machine in turn for welding; S6. After welding is completed, the first linear moving part and the resistance component are reset, and the driving component is started to drive the annular supporting plate to perform linear movement in the vertical direction, thereby causing the blades to detach from the blade placement table. At this time, the driving component is started again to cause the resistance component to limit the multi-blade combination structure after welding. At this time, the second rotating component is started to cause the multi-blade combination structure after welding to rotate in the vertical direction, and the maximum difference of several pressure sensors in the resistance component is obtained. If the maximum difference is greater than the preset maximum difference threshold, it indicates that the welding of the multi-blade combination structure after welding is unqualified.

[0015] The present invention provides a multi-blade combined structure electron beam welding tool and welding method, which has the following beneficial effects compared with the prior art: The present invention can automatically assemble blades and a rotating drum in a multi-blade combination structure of different specifications for electron beam welding, and can perform positioning processing on the preliminarily completed multi-blade combination structure to avoid shaking when the multi-blades are welded in sequence, causing the connection between the blades and the rotating drum to deviate, thereby improving welding efficiency and welding accuracy; The second rotating assembly proposed in the present invention can drive the drum positioning mechanism to rotate in the vertical direction and cooperate with the drum positioning mechanism to detect the balance of the drum or the multi-blade combination structure that has been welded. Performing a balance test on the drum before welding can not only avoid waste of raw materials but also improve the yield rate of the product. Performing a balance test on the multi-blade combination structure after welding can facilitate technicians to adjust the welding parameters of the electron beam welding machine, thereby improving the welding efficiency and welding accuracy of the multi-blade combination structure. 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 Schematic diagram of the distribution of components of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the drum support assembly of the present invention.

[0019] Figure 4 For the present invention Figure 2 A-section structure enlarged schematic diagram.

[0020] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of part B.

[0021] Figure 6 For the present invention Figure 3 An enlarged schematic diagram of the C-section structure.

[0022] Figure 7 For the present invention Figure 3 An enlarged schematic diagram of the D structure in FIG.

[0023] Figure numerals: 1. slide; 2. base; 201. first cavity; 202. second cavity; 3. first rotating assembly; 301. first motor; 302. first flat gear; 303. second flat gear; 4. drum positioning mechanism; 401. hollow drum; 402. abutment assembly; 4021. mounting plate; 4022. first arc plate; 4023. second arc plate; 4024. first push rod; 4025. first piston plate; 4026. guide rod; 4027. first Elastic member; 5. Blade bearing assembly; 501. Blade placement table; 502. First linear motion member; 503. Pressure plate; 6. Drum bearing assembly; 601. Annular bearing plate; 602. Second push rod; 603. Second elastic member; 604. Annular piston plate; 7. Driving assembly; 701. Second piston plate; 702. Second linear motion member; 8. Second rotating assembly; 801. Third flat gear; 802. Fourth flat gear; 803. Second motor; 9. Drum; 10. Blade. DETAILED DESCRIPTION

[0024] 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.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] See also Figure 1 to Figure 7 , provided in one embodiment of the present invention, is a multi-blade combined structure electron beam welding tool, comprising a slide 1 and a base 2, wherein the lower end center of the base 2 is fixedly connected to a main shaft (not shown in the figure) rotatably connected to the slide 1, and further comprising: The drum bearing assembly 6 is mounted on the base 2 and is used to bear the drum 9 in the multi-blade assembly structure; The drum positioning mechanism 4 is installed on the base 2 and is used to position and center the drum 9 in the multi-blade combination structure; The blade bearing assembly 5 is provided with a plurality of groups and is evenly and annularly mounted on the base 2, and is used to bear the blades 10 in the multi-blade combination structure and to cause the blades 10 to press against the rotating drum 9; The driving assembly 7 is installed on the base 2 and is used to drive the drum bearing assembly 6 to adjust the position of the drum 9 in the vertical direction or drive the drum positioning mechanism 4 to press against the inner wall of the drum 9; The first rotating assembly 3 is mounted on the slide 1 and is used to drive the base 2 to drive the drum 9 and the blades 10 to rotate in the vertical direction; The second rotating assembly 8 is installed on the base 2, and is used to drive the drum positioning mechanism 4 to rotate in the vertical direction and cooperate with the drum positioning mechanism 4 to detect the balance of the drum 9 or the welded multi-blade combination structure.

[0027] See also Figure 2 to Figure 4The drum bearing assembly 6 includes an annular bearing plate 601, which is slidably matched with the base 2. The lower end of the annular bearing plate 601 is fixedly connected to a second push rod 602. The lower end of the second push rod 602 extends into a second cavity 202 provided on the base 2 and is slidably matched with the base 2. The lower end of the second push rod 602 is fixedly connected to an annular piston plate 604 which is slidably matched with the second cavity 202. A second elastic member 603 is provided between the upper end of the annular piston plate 604 and the upper inner wall of the second cavity 202. The second elastic member 603 is fixedly connected to the annular piston plate 604 and the upper wall of the second cavity 202. The second cavity 202 is opened through a through hole provided on the base 2. It is connected with the first cavity 201 opened on the base 2, and a second valve component is embedded in the through hole. The purpose of this arrangement is to be able to use the annular supporting plate 601, the second push rod 602, the second elastic member 603 and the annular piston plate 604 to support the rotating drum 9. At the same time, the driving component 7 can push the liquid in the second cavity 202 to flow, and then use the liquid in the second cavity 202 to push the annular piston plate 604 to perform linear movement in the vertical direction along the second cavity 202, and then push the second push rod 602 to drive the annular supporting plate 601 to perform linear movement in the vertical direction, thereby realizing the vertical position adjustment of the rotating drum 9 placed on the annular supporting plate 601.

[0028] See also Figure 2 , Figure 3 as well as Figure 6 The drum positioning mechanism 4 includes a hollow drum 401, which is rotatably mounted on the base 2, and the hollow drum 401 is connected to the first cavity 201 provided on the base 2, and a first valve member (not shown in the figure) is embedded in the hollow drum 401, and further includes: The resistance component 402 is installed on the upper end of the hollow drum 401 and is used to press against the inner wall of the drum 9. The resistance component 402 includes a mounting plate 4021, a first curved plate 4022, a second curved plate 4023, a first push rod 4024, a first piston plate 4025, a guide rod 4026 and a first elastic member 4027. The mounting plate 4021 is sleeved on the upper end of the hollow drum 401 and fixedly connected to the hollow drum 401. A plurality of third cavities (not shown in the figure) that are connected to the internal cavity of the hollow drum 401 are provided in the mounting plate 4021. A first piston plate 4025 is slidably arranged in the third cavity. The first piston plate 4025 is fixedly connected to one end of the first push rod 4024 extending into the third cavity. The other end of the first push rod 4024 is fixedly connected to the first curved plate 4022. A pressure sensor (not shown in the figure) is fixedly connected to the outer side of the first curved plate 4022. The sensor is fixedly connected to the inner arc wall of the second arc plate 4023, and a guide rod 4026 is fixedly connected to the third cavity. The first piston plate 4025 slides with the guide rod 4026, and a first elastic member 4027 is arranged in the third cavity. The two ends of the first elastic member 4027 are respectively fixedly connected to the inner side end of the first piston plate 4025 and the inner wall of the third cavity. The driving assembly 7 pushes the liquid in the first cavity 201 to flow, and the liquid flows into the hollow drum 401 and into the third cavity through the first valve member. The liquid flowing into the third cavity pushes the first piston plate 4025 to slide along the length direction of the guide rod 4026. The first piston plate 4025 pushes the first arc plate 4022 to drive the second arc plate 4023 to press against the inner wall of the drum 9. A plurality of second arc plates 4023 are synchronously stretched outward to press against the inner wall of the drum 9, thereby achieving the technical effect of positioning, centering and limiting the drum 9.

[0029] Preferably, the first elastic member 4027 is a spring. Those skilled in the art should know that the purpose of this configuration is to provide elastic support for the first piston plate 4025. Therefore, in some embodiments, the first elastic member 4027 can also be configured as an elastic steel plate or a compression spring.

[0030] See also Figure 2 , Figure 3 , Figure 4 as well as Figure 7The driving component 7 includes a second piston plate 701 and a second linear moving part 702. The second piston plate 701 is slidably arranged in the first cavity 201. The lower end of the second piston plate 701 is fixedly connected to the output shaft of the second linear moving part 702. The second linear moving part 702 is fixedly connected to the inner wall of the first cavity 201. The purpose of this arrangement is to use the second linear moving part 702 to push the second piston plate 701 to perform linear movement in the vertical direction along the first cavity 201, and then use the second piston plate 701 to push the liquid in the first cavity 201 to flow under pressure, thereby promoting the liquid in the hollow drum 401 to flow under pressure or promoting the liquid in the second cavity 202 to flow under pressure, thereby achieving the technical effect of driving the drum positioning mechanism 4 to position the drum 9 or driving the drum bearing assembly 6 to adjust the position of the drum 9 in the vertical direction.

[0031] See also Figure 1 , Figure 2 as well as Figure 5 The blade bearing assembly 5 includes a blade placement platform 501, a first linear motion member 502 and a pressure plate 503. Several of the blade placement platforms 501 are detachably mounted on the base 2. The first linear motion member 502 is embedded in the blade placement platform 501. The pressure plate 503 is fixedly connected to the output shaft of the first linear motion member 502. A blade placement groove (not shown in the figure) for tilted placement of the blade 10 is provided on the upper part of the blade placement platform 501. The purpose of this arrangement is to place the blade 10 on the blade placement groove. At this time, the first linear motion member 502 pulls the pressure plate 503 to perform linear movement in the horizontal direction. The pressure plate 503 pushes one end of the blade 10 to cause the blade 10 to slide relative to the length direction of the blade placement groove, causing the other end of the blade 10 to press against the outer wall of the rotating drum 9, thereby completing the preliminary positioning assembly between the blade 10 and the rotating drum 9.

[0032] See also Figure 1 to Figure 3The first rotating component 3 includes a first motor 301, a first flat gear 302 and a second flat gear 303. The first flat gear 302 is sleeved on the output shaft of the first motor 301 and fixedly connected to the output shaft of the first motor 301. The first flat gear 302 is meshed with the second flat gear 303 sleeved on the main shaft and fixedly connected to the main shaft. The first motor 301 is detachably mounted on the slide 1. The purpose of this arrangement is to use the first motor 301 to drive the first flat gear 302 to rotate in the vertical direction. The first flat gear 302 drives the main shaft to drive the base 2 to rotate through the second flat gear 303 meshing with it, so as to drive the rotating drum 9 that has completed the preliminary positioning assembly and is located on the rotating drum bearing assembly 6 and the blade 10 located on the blade bearing assembly 5 to rotate synchronously in the vertical direction, so that the connection between the several blades 10 and the rotating drum 9 can be exposed to the field of view of the electron beam welding machine in turn for welding.

[0033] See also Figure 2 , Figure 3 as well as Figure 7 The second rotating component 8 includes a third flat gear 801, a fourth flat gear 802 and a second motor 803. The third flat gear 801 is sleeved on the hollow drum 401 and fixedly connected to the hollow drum 401. The fourth flat gear 802 is fixedly connected to the output shaft of the second motor 803 detachably mounted on the base 2. The fourth flat gear 802 is meshed with the third flat gear 801. The purpose of this arrangement is to use the second motor 803 to push the fourth flat gear 802 to rotate in the vertical direction, and the fourth flat gear 802 pushes the hollow drum 401 to rotate in the vertical direction, thereby achieving the technical effect of pushing the resistance component 402 mounted on the upper end of the hollow drum 401 to rotate in the vertical direction.

[0034] In the embodiment of the present invention, the rotating drum 9 is placed on the annular carrier plate 601 and sleeved on the outer side of the rotating drum positioning mechanism 4, and the second valve member is opened to cause the first cavity 201 and the second cavity 202 to be connected. At this time, the second linear motion member 702 is started to push the liquid in the first cavity 201 and the second cavity 202 to flow under pressure. At this time, the liquid pushes the annular piston plate 604 to perform linear movement in the vertical direction along the second cavity 202, causing the annular piston plate 604 to drive the second push rod 602 to push the annular carrier plate 601 to perform linear movement in the vertical direction, and the annular carrier plate 601 pushes the rotating drum 9 to perform linear movement in the vertical direction until the rotating drum 9 reaches the preset position. At this time, the second valve member is closed and the first valve member is opened, causing the first cavity 201 to The hollow rotating cylinder 401 is connected with the hollow rotating cylinder 401. At this time, the second linear motion member 702 is started to push the liquid in the first cavity 201 and the hollow rotating cylinder 401 to flow under pressure. At this time, the liquid in the first cavity 201 and the hollow rotating cylinder 401 pushes the first piston plate 4025 to slide along the length direction of the guide rod 4026. The first piston plate 4025 pushes the first arc plate 4022 to drive the second arc plate 4023 to press the inner wall of the rotating cylinder 9. The plurality of second arc plates 4023 are synchronously opened outward to press the inner wall of the rotating cylinder 9 to position the rotating cylinder 9 in the center and limit the position. At this time, the first valve member is closed and the second valve member is opened, so that the driving assembly 7 drives the annular carrier plate 601 to reset, so that the rotating cylinder 9 is suspended. At this time, the second motor 8 is started. 03 drives the fourth flat gear 802 to rotate in the vertical direction, the fourth flat gear 802 drives the hollow drum 401 to rotate through the third flat gear 801 meshing therewith, and the hollow drum 401 drives the drum 9 to rotate in the vertical direction through the abutment assembly 402. If there are defects or uneven quality in the drum body of the drum 9, the centrifugal force detected by the pressure sensor between each group of first arc plates 4022 and second arc plates 4023 will deviate. If the centrifugal force deviation value is greater than the preset centrifugal force deviation threshold value, it indicates that the drum 9 is of unqualified quality and no welding treatment is required. The unqualified drum 9 is replaced and the above operation is repeated until the centrifugal force deviation is greater than the preset centrifugal force deviation threshold value when the replaced drum 9 rotates in the vertical direction. The difference is within the centrifugal force deviation threshold (the centrifugal force deviation threshold is the mean of the centrifugal force deviation values ​​obtained by technicians after mean processing based on previous data). At this time, the driving component 7 is started to cause the annular carrier plate 601 to perform linear movement until the annular carrier plate 601 contacts the bottom of the drum 9 to support the drum 9. At this time, a number of blades 10 are placed in the blade placement grooves on the corresponding blade placement platforms 501. At this time, the first linear motion member 502 pulls the pressure plate 503 to perform linear movement in the horizontal direction. The pressure plate 503 pushes one end of the blade 10 to cause the blade 10 to slide relative to the length direction of the blade placement groove, causing the other end of the blade 10 to press against the outer wall of the drum 9, thereby completing the preliminary positioning and assembly between the blade 10 and the drum 9.At this time, the first rotating assembly 3 is started to drive the base 2 to rotate, thereby driving the rotating drum 9 located on the rotating drum bearing assembly 6 and the blade 10 located on the blade bearing assembly 5, which have completed the preliminary positioning assembly, to rotate synchronously in the vertical direction, so that the connection between the plurality of blades 10 and the rotating drum 9 can be exposed to the field of view of the electron beam welding machine in turn for welding. After the welding is completed, the first linear motion member 502 and the abutment assembly 402 are reset, and at the same time, the driving assembly 7 is started to drive the annular bearing plate 601 to perform linear movement in the vertical direction, thereby causing the blade 10 to leave the blade placement table 501, and the driving assembly is started again at this time. Component 7 prompts the resistance component 402 to limit the multi-blade combination structure after welding. At this time, the second rotating component 8 is started to prompt the multi-blade combination structure after welding to rotate in the vertical direction, and the maximum difference of several pressure sensors in the resistance component 402 is obtained. If the maximum difference is greater than the preset maximum difference threshold, it indicates that the welding of the multi-blade combination structure after welding is unqualified. The technician further adjusts the welding parameters of the electron beam welding machine to improve the yield rate of batch welding of multi-blade combination structures. The maximum difference threshold is the average value after the technician averages the maximum difference data obtained in the past.

[0035] A multi-blade combined structure electron beam welding method, using the multi-blade combined structure electron beam welding tool, comprises the following steps: S1, placing the drum 9 on the annular carrier plate 601 and sleeved on the outer side of the drum positioning mechanism 4, opening the second valve member to make the first cavity 201 and the second cavity 202 connected, and then starting the second linear motion member 702 to push the liquid in the first cavity 201 and the second cavity 202 to flow under pressure, and then the liquid pushes the annular piston plate 604 to perform linear motion in the vertical direction along the second cavity 202, so that the annular piston plate 604 drives the second push rod 602 to push the annular carrier plate 601 to perform linear motion in the vertical direction, and the annular carrier plate 601 pushes the drum 9 to perform linear motion in the vertical direction until the drum 9 reaches the preset position; S2, close the second valve member and open the first valve member, so that the first cavity 201 and the hollow drum 401 are connected, and the second linear motion member 702 is started to push the liquid in the first cavity 201 and the hollow drum 401 to flow under pressure. At this time, the liquid in the first cavity 201 and the hollow drum 401 pushes the first piston plate 4025 to slide along the length direction of the guide rod 4026, and the first piston plate 4025 pushes the first arc plate 4022 to drive the second arc plate 4023 to press against the inner wall of the drum 9. The plurality of second arc plates 4023 are synchronously opened outward to press against the inner wall of the drum 9 to position the drum 9 in the center and limit the position; S3, close the first valve member and open the second valve member, so that the driving assembly 7 drives the annular bearing plate 601 to reset, so that the drum 9 is suspended, and at this time, the second motor 803 is started to drive the fourth flat gear 802 to rotate in the vertical direction, and the fourth flat gear 802 drives the hollow drum 401 to rotate through the third flat gear 801 meshing therewith, and the hollow drum 401 drives the drum 9 to rotate in the vertical direction through the abutment assembly 402. If there are defects or uneven quality in the drum body of the drum 9, the centrifugal force detected by the pressure sensor between each group of the first arc plate 4022 and the second arc plate 4023 will deviate. If the centrifugal force deviation value is greater than the preset centrifugal force deviation threshold, it indicates that the drum 9 is of unqualified quality and does not need to be welded; S4, replacing the unqualified drum 9 and repeating the above operation until the centrifugal force deviation value of the replaced drum 9 during the vertical rotation movement is within the centrifugal force deviation threshold value; S5, start the driving assembly 7 to cause the annular carrier plate 601 to perform linear movement until the annular carrier plate 601 contacts the bottom of the rotating drum 9 to support the rotating drum 9, at this time, a plurality of blades 10 are placed in the blade placement grooves on the corresponding blade placement platforms 501, at this time, the first linear motion member 502 pulls the pressure plate 503 to perform linear movement in the horizontal direction, and the pressure plate 503 pushes one end of the blade 10 to cause the blade 10 to slide relative to the length direction of the blade placement groove, causing the other end of the blade 10 to press against the outer wall of the rotating drum 9, completing the preliminary positioning and assembly between the blade 10 and the rotating drum 9, at this time, start the first rotating assembly 3 to drive the base 2 to rotate, and then drive the rotating drum 9 located on the rotating drum bearing assembly 6 and the blade 10 located on the blade bearing assembly 5 to perform synchronous rotation in the vertical direction, so that the connection between the plurality of blades 10 and the rotating drum 9 can be exposed to the field of view of the electron beam welding machine in turn for welding; S6. After welding is completed, the first linear moving part 502 and the resistance component 402 are reset, and the driving component 7 is started to drive the annular supporting plate 601 to perform linear movement in the vertical direction, thereby causing the blade 10 to separate from the blade placement table 501. At this time, the driving component 7 is started again to cause the resistance component 402 to limit the multi-blade combination structure after welding. At this time, the second rotating component 8 is started to cause the multi-blade combination structure after welding to rotate in the vertical direction, and the maximum difference of several pressure sensors in the resistance component 402 is obtained. If the maximum difference is greater than the preset maximum difference threshold, it indicates that the welding of the multi-blade combination structure after welding is unqualified.

[0036] 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.

[0037] 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 multi-blade combined structure electron beam welding tool, comprising a slide (1) and a base (2), wherein a main shaft rotatably connected to the slide (1) is fixedly connected to the center of the lower end of the base (2), and characterized in that: Also includes: A rotating drum bearing assembly (6) is mounted on the base (2) and is used to bear the rotating drum (9) in the multi-blade assembly structure; A drum positioning mechanism (4) is mounted on the base (2) and is used to position and center the drum (9) in the multi-blade combination structure; A blade bearing assembly (5) is provided in a plurality of groups and is evenly mounted in an annular manner on the base (2), and is used to bear the blades (10) in the multi-blade combination structure and to cause the blades (10) to press against the rotating drum (9); A driving assembly (7) is mounted on the base (2) and is used to drive the drum bearing assembly (6) to adjust the vertical position of the drum (9) or to drive the drum positioning mechanism (4) to press against the inner wall of the drum (9); A second rotating assembly (8) is mounted on the base (2) and is used to drive the drum positioning mechanism (4) to rotate in a vertical direction and cooperate with the drum positioning mechanism (4) to detect the balance of the drum (9) or the multi-blade assembly structure after welding; The drum positioning mechanism (4) comprises a hollow drum (401), the hollow drum (401) being rotatably mounted on the base (2), the hollow drum (401) being connected to a first cavity (201) provided on the base (2), a first valve member being embedded and mounted in the hollow drum (401), and further comprising: A resistance component (402) is installed at the upper end of the hollow drum (401) and is used to press against the inner wall of the drum; The first rotating assembly (3) is mounted on the slide (1) and is used to drive the base (2) to drive the rotating drum (9) and the blades (10) to rotate in a vertical direction.

2. The multi-blade combined structure electron beam welding tool according to claim 1, characterized in that: The abutment assembly (402) comprises a mounting plate (4021), a first curved plate (4022), a second curved plate (4023), a first push rod (4024), a first piston plate (4025), a guide rod (4026) and a first elastic member (4027); the mounting plate (4021) is sleeved on the upper end of the hollow rotating cylinder (401) and is fixedly connected to the hollow rotating cylinder (401); a plurality of third cavities that are in communication with the internal cavity of the hollow rotating cylinder (401) are provided in the mounting plate (4021); a first piston plate (4025) is slidably provided in the third cavity; the first piston plate (4025) and a guide rod (4026) extending into the third cavity are connected to each other. One end of the first push rod (4024) is fixedly connected, and the other end of the first push rod (4024) is fixedly connected to a first arc plate (4022), the outer side of the first arc plate (4022) is fixedly connected to a pressure sensor, and the pressure sensor is fixedly connected to the inner arc wall of the second arc plate (4023), and the third cavity is fixedly connected to a guide rod (4026), the first piston plate (4025) and the guide rod (4026) are slidably matched, and a first elastic member (4027) is arranged in the third cavity, and the two ends of the first elastic member (4027) are respectively fixedly connected to the inner end of the first piston plate (4025) and the inner wall of the third cavity.

3. The multi-blade combined structure electron beam welding tool according to claim 2, characterized in that: The drum bearing assembly (6) comprises an annular bearing plate (601), the annular bearing plate (601) is slidably matched with the base (2), the lower end of the annular bearing plate (601) is fixedly connected to a second push rod (602), the lower end of the second push rod (602) extends into a second cavity (202) provided on the base (2) and is slidably matched with the base (2), the lower end of the second push rod (602) is fixedly connected to an annular piston plate (604) slidably matched with the second cavity (202), a second elastic member (603) is provided between the upper end of the annular piston plate (604) and the upper inner wall of the second cavity (202), the second elastic member (603) is fixedly connected to the annular piston plate (604) and the second cavity (202), the second cavity (202) is connected to the first cavity (201) provided on the base (2) through a through hole provided on the base (2), and a second valve member is embedded and installed in the through hole.

4. The multi-blade combined structure electron beam welding tool according to claim 3, characterized in that: The driving assembly (7) comprises a second piston plate (701) and a second linear moving member (702); the second piston plate (701) is slidably disposed in the first cavity (201); the lower end of the second piston plate (701) is fixedly connected to the output shaft of the second linear moving member (702); and the second linear moving member (702) is fixedly connected to the inner wall of the first cavity (201).

5. The multi-blade combined structure electron beam welding tool according to claim 4, characterized in that: The blade bearing assembly (5) comprises a blade placement platform (501), a first linear motion component (502) and a pressure plate (503); a plurality of the blade placement platforms (501) are detachably mounted on the base (2); the first linear motion component (502) is embedded in the blade placement platform (501); the pressure plate (503) is fixedly connected to the output shaft of the first linear motion component (502); and a blade placement groove for tiltingly placing the blade (10) is provided on the upper portion of the blade placement platform (501).

6. The multi-blade combined structure electron beam welding tool according to claim 5, characterized in that: The second rotating assembly (8) comprises a third spur gear (801), a fourth spur gear (802) and a second motor (803); the third spur gear (801) is sleeved on the hollow rotating drum (401) and fixedly connected to the hollow rotating drum (401); the fourth spur gear (802) is fixedly connected to an output shaft of the second motor (803) detachably mounted on the base (2); and the fourth spur gear (802) is meshed with the third spur gear (801).

7. The multi-blade combined structure electron beam welding tool according to claim 6, characterized in that: The first rotating assembly (3) comprises a first motor (301), a first spur gear (302) and a second spur gear (303); the first spur gear (302) is sleeved on an output shaft of the first motor (301) and is fixedly connected to the output shaft of the first motor (301); the first spur gear (302) is meshed with a second spur gear (303) sleeved on a main shaft and fixedly connected to the main shaft; the first motor (301) is detachably mounted on the slide (1).

8. A method for electron beam welding of a multi-blade combination structure, using the multi-blade combination structure electron beam welding tool as claimed in claim 7, characterized in that: The following steps are involved: S1, placing the rotating drum (9) on the annular supporting plate (601) and sleeved on the outer side of the rotating drum positioning mechanism (4), opening the second valve member to cause the first cavity (201) and the second cavity (202) to be connected, and then starting the second linear motion member (702) to push the liquid in the first cavity (201) and the second cavity (202) to flow under pressure, and then the liquid pushes the annular piston plate (604) to perform linear movement in the vertical direction along the second cavity (202), causing the annular piston plate (604) to drive the second push rod (602) to push the annular supporting plate (601) to perform linear movement in the vertical direction, and the annular supporting plate (601) pushes the rotating drum (9) to perform linear movement in the vertical direction until the rotating drum (9) reaches a preset position; S2, closing the second valve member and opening the first valve member, so that the first cavity (201) and the hollow rotating cylinder (401) are connected, and at this time, the second linear motion member (702) is started to push the liquid in the first cavity (201) and the hollow rotating cylinder (401) to flow under pressure. At this time, the liquid in the first cavity (201) and the hollow rotating cylinder (401) pushes the first piston plate (4025) to slide along the length direction of the guide rod (4026), and the first piston plate (4025) pushes the first arc plate (4022) to drive the second arc plate (4023) to press against the inner wall of the rotating cylinder. The plurality of second arc plates (4023) are synchronously stretched outward to press against the inner wall of the rotating cylinder (9) to position the rotating cylinder (9) in the center and limit the position; S3, closing the first valve member and opening the second valve member, causing the driving assembly (7) to drive the annular bearing plate (601) to reset, causing the rotating drum (9) to be suspended in the air, and then starting the second motor (803) to drive the fourth flat gear (802) to rotate in the vertical direction, the fourth flat gear (802) drives the hollow rotating drum (401) to rotate through the third flat gear (801) meshing therewith, and the hollow rotating drum (401) drives the rotating drum (9) to rotate in the vertical direction through the abutment assembly (402). If the rotating drum (9) has defects or uneven quality, the centrifugal force detected by the pressure sensor between each set of the first arc plate (4022) and the second arc plate (4023) will deviate. If the centrifugal force deviation value is greater than a preset centrifugal force deviation threshold, it indicates that the quality of the rotating drum (9) is unqualified and no welding process is required; S4, replacing the unqualified rotating drum (9) and repeating the operations of S1 to S3 until the centrifugal force deviation value of the replaced rotating drum (9) when performing a vertical rotation movement is within the centrifugal force deviation threshold value; S5, starting the driving assembly (7) to cause the annular support plate (601) to perform linear movement until the annular support plate (601) contacts the bottom of the rotating drum (9) to support the rotating drum (9), and at this time, a plurality of blades (10) are placed in the blade placement grooves on the corresponding blade placement platforms (501), and at this time, the first linear motion member (502) pulls the pressure plate (503) to perform linear movement in the horizontal direction, and the pressure plate (503) pushes one end of the blade (10) to cause the blade (10) to slide relative to the length direction of the blade placement groove. , causing the other end of the blade (10) to press against the inner wall of the rotating drum (9), completing the preliminary positioning assembly between the blade (10) and the rotating drum (9), at which time the first rotating assembly (3) is started to drive the base (2) to rotate, thereby driving the rotating drum (9) located on the rotating drum supporting assembly (6) and the blade (10) located on the blade supporting assembly (5) to rotate synchronously in the vertical direction, so that the connection points between the plurality of blades (10) and the rotating drum (9) can be exposed in sequence to the field of view of the electron beam welding machine for welding; S6. After the welding is completed, the first linear moving member (502) and the resistance component (402) are reset, and the driving component (7) is started to drive the annular supporting plate (601) to perform linear movement in the vertical direction, thereby causing the blade (10) to separate from the blade placement table (501). At this time, the driving component (7) is started again to cause the resistance component (402) to limit the multi-blade combination structure after the welding is completed. At this time, the second rotating component (8) is started to cause the multi-blade combination structure after the welding is completed to rotate in the vertical direction, and the maximum difference of several pressure sensors in the resistance component (402) is obtained. If the maximum difference is greater than a preset maximum difference threshold, it indicates that the welding of the multi-blade combination structure after the welding is completed is unqualified.

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