Abutting assembly and fixing device for electron beam welding of cabin section assembly

Abstract

The invention discloses an abutting assembly for electron beam welding of a cabin section assembly and a fixing device, and belongs to the technical field of electron beam welding. The method is used for solving at least one of the problems that in the prior art, a cabin section assembly shakes in the electron beam welding process, the welding precision and the welding quality are poor due to the fact that an electron beam welding gun and a welding seam are deviated and not aligned, and a lower-layer skin of the cabin section assembly displaces in the electron beam welding process. The abutting assembly comprises a first abutting piece and a second abutting piece which are symmetrically arranged, one side of the first abutting piece abuts against a first end frame of the cabin section assembly, and one side of the second abutting piece abuts against a second end frame of the cabin section assembly. The method can be used for electron beam welding of the cabin section assembly.

Description

Technical Field

[0001] This invention belongs to the field of electron beam welding technology, and particularly relates to a clamping component and fixing device for electron beam welding of compartment assemblies. Background Technology

[0002] In aerospace, high-end equipment manufacturing, and other fields, the module assemblies serve as core load-bearing structures, and their connection strength and assembly precision directly determine the operational reliability and service life of the entire system. Electron beam welding technology, with its outstanding advantages such as high energy density, minimal welding deformation, and excellent joint quality, has become a key process for connecting the end frames of module assemblies.

[0003] In actual production, in order to achieve continuous welding of the circumferential weld of the compartment assembly, it is usually necessary to rotate the compartment assembly at a uniform speed, while coordinating with the precise feeding of the electron beam welding gun to ensure the uniformity of the weld formation.

[0004] However, due to the structural characteristics of the module assembly (such as a large length-to-diameter ratio and a thin-walled annular end frame), processing and assembly errors (such as coaxiality deviation between the end frame and the module body), and insufficient dynamic stability of the rotating support mechanism, the end frame of the module assembly is prone to wobbling during rotation, which leads to deviation and misalignment between the electron beam welding gun and the weld, affecting welding accuracy and welding quality. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide a clamping component and fixing device for electron beam welding of compartment assemblies, so as to solve at least one of the following problems in the prior art: shaking of compartment assemblies during electron beam welding, deviation and misalignment between the electron beam welding gun and the weld seam leading to poor welding accuracy and quality, and displacement of the lower skin of the compartment assembly during electron beam welding.

[0006] In a first aspect, the present invention provides a clamping assembly for electron beam welding of a compartment assembly, comprising a first abutting member and a second abutting member arranged symmetrically, wherein one side of the first abutting member abuts against a first end frame of the compartment assembly, and one side of the second abutting member abuts against a second end frame of the compartment assembly.

[0007] Furthermore, the first abutting member includes a first abutting arc plate, a first supporting arc plate, a first abutting rod disposed between the first abutting arc plate and the first supporting arc plate, and a first abutting spring sleeved on the end of the first abutting rod.

[0008] Furthermore, one side of the first abutting arc plate abuts against the first end frame, and one end of the first abutting rod is fixedly connected to the other side of the first abutting arc plate, so that the other end of the first abutting rod abuts against the first supporting arc plate through the first abutting spring.

[0009] Furthermore, the second abutting member includes a second abutting arc plate, a second supporting arc plate, a second abutting rod disposed between the second abutting arc plate and the second supporting arc plate, and a second abutting spring sleeved on the end of the second abutting rod.

[0010] Furthermore, one side of the second abutting arc plate abuts against the second end frame, one end of the second abutting rod is fixedly connected to the other side of the second abutting arc plate, and the other end of the second abutting rod...

[0011] Furthermore, the clamping assembly also includes a third abutting rod and a third abutting spring sleeved at both ends of the third abutting rod. One end of the third abutting rod abuts against the first supporting arc plate through the third spring, and the other end of the third abutting rod abuts against the second supporting arc plate through the third spring.

[0012] Furthermore, the clamping assembly also includes a first clamping member and a second clamping member for limiting the lower skin layer.

[0013] Furthermore, the first pressing assembly includes a first pressing plate and a plurality of first pressing blocks disposed on the lower end face of the first pressing plate, wherein the overall outline of the lower end face of the plurality of first pressing blocks conforms to the outer wall of the front recess.

[0014] Furthermore, the second clamping assembly includes a second clamping plate and a plurality of second clamping blocks disposed on the lower end face of the second clamping plate, wherein the overall outline of the lower end face of the plurality of second clamping blocks conforms to the outer wall of the rear recess.

[0015] Secondly, the present invention also provides a fixing device for electron beam welding of compartment assemblies, including the aforementioned clamping assembly for electron beam welding of compartment assemblies and a support assembly for supporting the lower skin of the compartment assembly.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] A) The clamping assembly for electron beam welding of the compartment assembly provided by the present invention clamps the two end frames of the compartment assembly with the first abutting member and the second abutting member respectively, which can effectively limit the shaking of the compartment assembly during rotation, ensure the accurate relative position of the electron beam welding gun and the weld, thereby improving the welding accuracy and welding quality.

[0018] B) The clamping assembly for electron beam welding of the compartment assembly provided by the present invention is easy to operate, install and disassemble, and can meet the needs of rapid switching and efficient operation in actual production process.

[0019] C) The clamping assembly for electron beam welding of the compartment assembly provided by the present invention, through the elastic action of the first clamping spring, allows the first clamping arc plate to be adaptively adjusted to a certain extent according to the actual shape of the first end frame, closely fitting the first end frame, providing stable and reliable clamping support for the first end frame, and reducing its shaking during the welding rotation process.

[0020] D) The clamping assembly for electron beam welding of the compartment assembly provided by the present invention abuts against the second support arc plate via a second abutting spring. The structural design of the second abutting member is the same as that of the first abutting member, which can provide stable and reliable abutting support for the second end frame and reduce the shaking of the second end frame during welding rotation.

[0021] E) The clamping assembly for electron beam welding of the compartment assembly provided by the present invention, through the setting of the first clamping block, can closely fit the outer wall of the concave front end of the lower skin, thereby effectively limiting the front end displacement of the lower skin during the welding rotation process; through the setting of the second clamping block, the rear end of the lower skin can be tightly fixed on the second skin support, reducing its displacement due to centrifugal force and other factors during the welding rotation process.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the structure of the first end frame of the compartment assembly used in the clamping assembly for electron beam welding of the compartment assembly provided in Embodiment 1 of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the second end frame of the compartment assembly used in the clamping assembly for electron beam welding of the compartment assembly provided in Embodiment 1 of the present invention.

[0026] Figure 3 This is a schematic diagram of the clamping assembly for electron beam welding of compartment assemblies provided in Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of another direction of the clamping assembly for electron beam welding of compartment assemblies provided in Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the support component in the fixing device for electron beam welding of compartment assemblies provided in Embodiment 2 of the present invention;

[0029] Figure 6 This is a schematic diagram of the connecting frame in the fixing device for electron beam welding of compartment assemblies provided in Embodiment 2 of the present invention;

[0030] Figure 7 This is a schematic diagram of the fit between the semi-annular hole and the semi-annular protrusion in the fixing device for electron beam welding of compartment assemblies provided in Embodiment 2 of the present invention.

[0031] Figure label:

[0032] 1-First abutting arc plate; 2-First supporting arc plate; 3-First abutting rod; 4-First abutting spring; 5-Second abutting arc plate; 6-Second supporting arc plate; 7-Second abutting rod; 8-Second abutting spring; 9-Third abutting rod; 10-Third abutting spring; 11-First pressing plate; 12-First pressing block; 13-Second pressing plate; 14-Second pressing block; 15-First supporting ring; 16-Second supporting ring; 17-First skin support; 18-Second skin support; 19-Third skin support; 20-First connecting rod; 21-Second connecting rod; 22-Synchronous detection disc; 23-Synchronous detection ring; 24-Semi-annular hole; 25-Semi-annular protrusion; 26-Front-end contact sensor; 27-Rear-end contact sensor. Detailed Implementation

[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0034] Example 1

[0035] This embodiment provides a clamping assembly for electron beam welding of a compartment assembly, the compartment assembly including a lower skin and a first end frame disposed at one end of the lower skin (see...). Figure 1 ) and the second end frame located at the other end of the lower skin (see Figure 2 ).

[0036] The structure of the clamping assembly for electron beam welding of the compartment assembly in this embodiment is shown in [reference]. Figures 3 to 4 It includes a first abutting member and a second abutting member arranged symmetrically. One side of the first abutting member abuts against the first end frame of the compartment assembly, and one side of the second abutting member abuts against the second end frame of the compartment assembly.

[0037] Compared with the prior art, the clamping assembly for electron beam welding of the compartment assembly in this embodiment clamps the two end frames of the compartment assembly with the first and second abutting members respectively. This effectively limits the shaking of the compartment assembly during rotation and ensures the accurate relative position of the electron beam welding gun and the weld, thereby improving welding accuracy and welding quality. This solves at least one of the problems in the prior art: shaking of the compartment assembly during electron beam welding, deviation and misalignment between the electron beam welding gun and the weld leading to poor welding accuracy and welding quality, and displacement of the lower skin of the compartment assembly during electron beam welding.

[0038] Meanwhile, the clamping component is easy to operate, install, and disassemble, and can meet the needs of rapid switching and efficient operation in actual production processes.

[0039] The first abutting component includes a symmetrically arranged first abutting arc plate 1, a first supporting arc plate 2, a first abutting rod 3 disposed between the first abutting arc plate 1 and the first supporting arc plate 2, and a first abutting spring 4 sleeved on the end of the first abutting rod 3. One side of the first abutting arc plate 1 abuts against the first end frame, one end of the first abutting rod 3 is fixedly connected to the other side of the first abutting arc plate 1, and the other end of the first abutting rod 3 abuts against the first supporting arc plate 2 through the first abutting spring 4. In this way, through the elastic action of the first abutting spring 4, the first abutting arc plate 1 can adaptively adjust to a certain extent according to the actual shape of the first end frame, closely fitting the first end frame, providing stable and reliable abutting support for the first end frame, and reducing its shaking during welding rotation.

[0040] Similarly, the second abutting component includes a symmetrically arranged second abutting arc plate 5, a second supporting arc plate 6, a second abutting rod 7 disposed between the second abutting arc plate 5 and the second supporting arc plate 6, and a second abutting spring 8 sleeved on the end of the second abutting rod 7. One side of the second abutting arc plate 5 abuts against the second end frame, one end of the second abutting rod 7 is fixedly connected to the other side of the second abutting arc plate 5, and the other end of the second abutting rod 7 abuts against the second supporting arc plate 6 via the second abutting spring 8. The structural design of the second abutting component is the same as that of the first abutting component, which can provide stable and reliable abutting support for the second end frame and reduce the shaking of the second end frame during welding rotation.

[0041] To achieve the abutment between the first supporting arc plate 2 and the second supporting arc plate 6, the aforementioned abutment assembly further includes a third abutment rod 9 and third abutment springs 10 sleeved at both ends of the third abutment rod 9. One end of the third abutment rod 9 abuts against the first supporting arc plate 2 via the third spring, and the other end of the third abutment rod 9 abuts against the second supporting arc plate 6 via the third spring. This cooperation between the third abutment rod and the third abutment spring provides additional abutment force to the first and second supporting arc plates, further enhancing the stability of the entire abutment assembly and ensuring that the compartment assembly does not wobble during welding. Simultaneously, this design allows the abutment assembly to adapt to compartment assemblies of different sizes and shapes, thereby improving the versatility and flexibility of the abutment assembly.

[0042] To further address the displacement of the lower skin during welding rotation, the aforementioned clamping assembly also includes a first clamping member and a second clamping member for limiting the movement of the lower skin. Thus, the first and second clamping members effectively limit the forward and backward displacement of the lower skin during welding rotation, ensuring the stability of the welding process.

[0043] Specifically, the first clamping assembly includes a first clamping plate 11 and a plurality of first clamping blocks 12 disposed on the lower end face of the first clamping plate 11. The overall contour of the lower end face of the plurality of first clamping blocks 12 is conformal to the outer wall of the front recess. In this way, through the arrangement of the first clamping blocks 12, the first clamping blocks 12 can tightly fit the outer wall of the front recess of the lower skin, thereby effectively limiting the front displacement of the lower skin during the welding rotation process.

[0044] Similarly, the second clamping assembly includes a second clamping plate 13 and a plurality of second clamping blocks 14 disposed on the lower end face of the second clamping plate 13. The overall outline of the lower end face of the plurality of second clamping blocks 14 is conformal to the outer wall of the rear recess. In this way, by setting the second clamping blocks 14, displacement caused by centrifugal force and other factors during welding rotation can be reduced.

[0045] Example 2

[0046] This embodiment provides a fixing device for electron beam welding of compartment assemblies, including the clamping assembly for electron beam welding of compartment assemblies provided in Embodiment 1.

[0047] Compared with the prior art, the beneficial effects of the fixing device for electron beam welding of compartment assemblies provided in this embodiment are basically the same as the beneficial effects of the clamping assembly for electron beam welding of compartment assemblies provided in Embodiment 1, and will not be described in detail here.

[0048] To further limit the positioning of the lower skin of the module assembly and address the issue of displacement of the lower skin during electron beam welding, the aforementioned fixing device for electron beam welding of the module assembly also includes a support assembly for supporting the lower skin of the module assembly. (See [link to relevant documentation]). Figure 5 .

[0049] Specifically, the support assembly includes a first support ring 15, a second support ring 16, and multiple skin support members for supporting the lower skin. It should be noted that the first support ring 15 and the second support ring 16 rotate synchronously with the module assembly during electron beam welding. In this way, the first support ring 15, the second support ring 16, and the skin support members can cooperate with the first and second clamping members to provide stable rotational support for the lower skin, thereby ensuring its stability during the welding process.

[0050] For example, there are three skin support members: a first skin support member 17, a second skin support member 18, and a third skin support member 19. The first skin support member 17 is located within the annular region of the first support ring 15 and on the inner wall of the recess at the front end of the lower skin. The second skin support member 18 is located within the annular region of the second support ring 16 and on the inner wall of the recess at the rear end of the lower skin. The third skin support member 19 is located between the first skin support member 17 and the second skin support member 18 and in the middle of the lower skin. In this way, the three skin support members are located at the front end, rear end, and middle of the lower skin, respectively, which can support the lower skin from multiple positions and effectively prevent the lower skin from deforming or displacing due to its own weight or centrifugal force during welding rotation.

[0051] The first skin support 17 is located on the inner wall of the front recess of the lower skin and conforms to the inner wall of the front recess; the second skin support 18 is located on the inner wall of the rear recess of the lower skin and conforms to the inner wall of the rear recess; and the third skin support 19 is located in the middle of the lower skin and is inserted into two rectangular grooves symmetrically arranged on the inner side of the lower skin.

[0052] In this way, on the one hand, the first skin support member 17, the second skin support member 18, and the third skin support member 19, which adopt the above-mentioned structure and shape, can perfectly fit the inner wall of the concave part and the rectangular groove of the lower skin. This not only provides stable and reliable support for the lower skin and reduces its deformation due to its own weight or external force during the welding process, but also ensures that the lower skin always maintains the correct position and posture when the support assembly moves upward, further improving the assembly accuracy and welding quality.

[0053] On the other hand, the second skin support 18 is inserted into two rectangular grooves symmetrically arranged on the inner side of the lower skin, which can also axially limit the lower skin and prevent the lower skin from affecting the welding accuracy due to axial movement during the welding process, thereby ensuring the stability and reliability of the welding process.

[0054] It is worth noting that, due to the thinness of the first end frame, the second end frame, and the lower skin, and the long length of the lower skin, the structural strength of the irregular structure is low. During rotation, the first end frame and the second end frame rotate at different speeds, resulting in a certain angle of torsion, which affects the welding accuracy and welding quality.

[0055] Therefore, the aforementioned clamping assembly also includes a connecting frame disposed between the first support ring 15 and the second support ring 16, see [link / reference] Figure 6 The connecting frame includes a first connecting rod 20 and a second connecting rod 21. One end of the first connecting rod 20 is fixedly connected to the first support ring 15, and the other end of the first connecting rod 20 is provided with a synchronous detection disk 22. One end of the second connecting rod 21 is fixedly connected to the second support ring 16, and the other end of the second connecting rod 21 is provided with a synchronous detection ring 23.

[0056] Among them, see Figure 7 A semi-circular hole 24 is opened on the synchronous detection disk 22, and a semi-circular protrusion 25 is provided on the synchronous detection ring 23. The semi-circular protrusion 25 is inserted into the semi-circular hole 24 and has a gap with the hole wall of the semi-circular hole 24. Along the rotation direction of the first support ring 15 and the second support ring 16, a front contact sensor 26 is provided at the front end of the semi-circular protrusion 25, and a rear contact sensor 27 is provided at the rear end of the semi-circular protrusion 25.

[0057] When the first support ring 15 and the second support ring 16 rotate synchronously with the compartment assembly, if the first support ring 15 and the second support ring 16 rotate synchronously, the front end and the rear end of the semi-annular protrusion 25 have gaps with the semi-annular hole 24, and the front contact sensor 26 and the rear contact sensor 27 do not generate contact signals.

[0058] If the rotation speed of the first support ring 15 is faster than the rotation speed of the second support ring 16, the rear end of the semi-ring protrusion 25 contacts the rear end contact sensor 27, and the rear end contact sensor 27 sends a contact signal.

[0059] If the rotation speed of the second support ring 16 is faster than that of the first support ring 15, the front end of the semi-circular protrusion 25 will contact the front contact sensor 26, and the front contact sensor 26 will send a contact signal.

[0060] In this way, the contact signals sent by the front contact sensor 26 and the rear contact sensor 27 can monitor in real time whether the rotation of the first support ring 15 and the second support ring 16 is synchronized. Once asynchrony is detected, the control system can immediately adjust the corresponding drive motor, for example, by increasing the power of the slower motor or decreasing the power of the faster motor, so that the first support ring 15 and the second support ring 16 can return to a state of synchronized rotation.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A clamping assembly for electron beam welding of compartment assemblies, characterized in that, It includes a first abutting member and a second abutting member arranged symmetrically. One side of the first abutting member abuts against the first end frame of the compartment assembly, and one side of the second abutting member abuts against the second end frame of the compartment assembly.

2. The clamping assembly for electron beam welding of compartment assemblies according to claim 1, characterized in that, The first abutting member includes a first abutting arc plate, a first supporting arc plate, a first abutting rod disposed between the first abutting arc plate and the first supporting arc plate, and a first abutting spring sleeved on the end of the first abutting rod.

3. The clamping assembly for electron beam welding of compartment assemblies according to claim 2, characterized in that, One side of the first abutting arc plate abuts against the first end frame, and one end of the first abutting rod is fixedly connected to the other side of the first abutting arc plate, with the other end of the first abutting rod abutting against the first supporting arc plate through the first abutting spring.

4. The clamping assembly for electron beam welding of compartment assemblies according to claim 1, characterized in that, The second abutting member includes a second abutting arc plate, a second supporting arc plate, a second abutting rod disposed between the second abutting arc plate and the second supporting arc plate, and a second abutting spring sleeved on the end of the second abutting rod.

5. The clamping assembly for electron beam welding of compartment assemblies according to claim 4, characterized in that, One side of the second abutting arc plate abuts against the second end frame, one end of the second abutting rod is fixedly connected to the other side of the second abutting arc plate, and the other end of the second abutting rod.

6. The clamping assembly for electron beam welding of compartment assemblies according to claim 1, characterized in that, The clamping assembly also includes a third abutting rod and a third abutting spring sleeved at both ends of the third abutting rod. One end of the third abutting rod abuts against the first supporting arc plate through the third spring, and the other end of the third abutting rod abuts against the second supporting arc plate through the third spring.

7. The clamping assembly for electron beam welding of compartment assemblies according to claim 1, characterized in that, The clamping assembly also includes a first clamping member and a second clamping member for limiting the lower skin layer.

8. The clamping assembly for electron beam welding of compartment assemblies according to claim 7, characterized in that, The first pressing assembly includes a first pressing plate and a plurality of first pressing blocks disposed on the lower end face of the first pressing plate. The overall outline of the lower end face of the plurality of first pressing blocks is conformal to the outer wall of the front concave portion.

9. The clamping assembly for electron beam welding of compartment assemblies according to claim 7, characterized in that, The second clamping assembly includes a second clamping plate and a plurality of second clamping blocks disposed on the lower end face of the second clamping plate. The overall outline of the lower end face of the plurality of second clamping blocks conforms to the outer wall of the rear recess.

10. A fixing device for electron beam welding of compartment assemblies, characterized in that, Includes the clamping assembly for electron beam welding of the compartment assembly as described in any one of claims 1 to 9, and the support assembly for supporting the lower skin of the compartment assembly.

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