Electron beam welding interface protection device
By using a lead-out plate of the same material to protect the straight interface of the annular target, the problems of notches and cracks during welding were solved, the weld quality was improved and the production cost was reduced.
Patent Information
- Application Number
- CN202423026818.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the electron beam welding process of the linear interface of the annular target, heat is easily generated at the edge of the workpiece, leading to notches and cracks, and there is a lack of machining allowance, which affects the quality of the weld.
The first and second lead-out plates are respectively connected to the electron beam welding start and end points for protection. The lead-out plates are made of the same material as the workpiece and are fixed by a clamping plate group and a fixing bolt group to ensure that the lead-out plates fit the workpiece. The clamping direction is adjusted to adapt to different thicknesses and lengths.
It improved weld quality, prevented cracks, ensured weld smoothness, and reduced production costs.
Smart Images
Figure CN223518842U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field for the fixation of workpieces during electron beam processing, in particular to an electron beam welding interface protection device. BACKGROUND
[0002] As one of the important processes in target material production, electron beam welding has a large depth-to-width ratio of weld and a small heat-affected zone, and exhibits unique advantages when welding interfaces. However, when welding linear joints, the heat accumulation effect at the edges of the workpiece will cause the edges to melt into notches. Specifically, when electron beam welding is performed on workpieces with linear interfaces such as ring-shaped targets, since the interface is linear, there is no processing allowance in the perpendicular direction of the weld after the electron beam welding process, and the weld has high requirements. The interface often has cracks, which is a defect that must be avoided on the workpiece. SUMMARY
[0003] To solve the problems in the background art, the utility model provides an electron beam welding interface protection device, which comprises a workpiece to be welded, a first lead-out plate, a second lead-out plate, a first clamp plate set, a second clamp plate set, a first set of fixing bolts, and a second set of fixing bolts. The workpiece to be welded has a linear interface to be welded that penetrates through it. The first lead-out plate and the second lead-out plate are respectively opposite one end of the linear interface, and the first lead-out plate and the second lead-out plate are respectively attached to one side of the workpiece to be welded.
[0004] The first clamp plate set and the second clamp plate set are respectively arranged on the two sides of the linear interface. The two ends of the first clamp plate set are clamped and fixed by the first set of fixing bolts, and the two ends of the second clamp plate set are clamped and fixed by the second set of fixing bolts. The first lead-out plate, the workpiece to be welded, and the second lead-out plate are sequentially clamped in the first clamp plate set and the second clamp plate set.
[0005] The first clamp plate set and the second clamp plate set are both parallel to the orientation of the linear interface.
[0006] The thickness of the first lead-out plate and the second lead-out plate is consistent with the thickness of the workpiece to be welded.
[0007] The material of the first lead-out plate and the second lead-out plate is consistent with the material of the workpiece to be welded.
[0008] The workpiece to be welded is a ring-shaped target.
[0009] The linear interface is the interface of the ring-shaped target.
[0010] The utility model has the advantages of:
[0011] 1. Two lead-out plates are used to protect the starting point and the ending point of electron beam welding, solving the problem of cracks caused by the lack of processing allowance in linear interfaces, and improving the quality of the weld.
[0012] 2. The material of the first and second lead-out plates of the protection device is the same as that of the annular target material, which can ensure that no other brittle phase appears and no too wide gap is generated, and the quality of the weld is improved.
[0013] 3. The fixing clamp of the protection device can be adjusted in the clamping direction to meet the requirements of the first and second lead-out plates with different thicknesses and lengths. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structure diagram of an embodiment of the electronic beam welding interface protection device.
[0015] Among them: 1-waiting to be welded workpiece, 11-first lead-out plate, 12-second lead-out plate, 21-first clamp plate group, 22-second clamp plate group, 31-first fixed bolt group, 32-second fixed bolt group, 4-linear interface, 5-weld. DETAILED DESCRIPTION
[0016] The utility model will be further explained in detail in combination with the drawings.
[0017] As Figure 1 shown in the embodiment of the utility model, it comprises: a waiting to be welded workpiece 1, a first lead-out plate 11, a second lead-out plate 12, a first clamp plate group 21, a second clamp plate group 22, a first fixed bolt group 31 and a second fixed bolt group 32, wherein the waiting to be welded workpiece 1 is provided with a linear interface 4 to be welded, the first lead-out plate 11 and the second lead-out plate 12 respectively face one end of the linear interface 4, and the first lead-out plate 11 and the second lead-out plate 12 are respectively attached to one side of the waiting to be welded workpiece 1; the first clamp plate group 21 and the second clamp plate group 22 are respectively arranged on both sides of the linear interface 4, and the first clamp plate group 21 and the second clamp plate group 22 are parallel to the direction of the linear interface 4; the two ends of the first clamp plate group 21 are clamped and fixed by the first fixed bolt group 31, and the two ends of the second clamp plate group 12 are clamped and fixed by the second fixed bolt group 32.
[0018] The first lead-out plate 11, the waiting to be welded workpiece 1 and the second lead-out plate 12 are sequentially clamped in the first clamp plate group 21 and the second clamp plate group 22; so as to keep from displacement in the process of electronic beam welding; one of the first lead-out plate 11 and the second lead-out plate 12 contacts the starting point of the linear interface 4 to protect the starting point of the electronic beam welding, and the other contacts the end point of the linear interface 4 to protect the end point of the electronic beam welding.
[0019] The thicknesses of the first lead-out plate 11 and the second lead-out plate 12 are consistent with the thickness of the waiting to be welded workpiece 1, so as to ensure that the interface weld is kept flat.
[0020] The materials of the first and second lead-out plates 11 and 12 are consistent with the material of the workpiece 1 to be welded, avoiding the appearance of other brittle phases.
[0021] Since the first and second clamp plate sets 21 and 22 are disassembled by bolts (the first and second sets of fixing bolts 31 and 32), adjustment can be made in the horizontal and vertical directions according to the direction of the linear interface 4, meeting the needs of linear interfaces 4 of different thicknesses and lengths.
[0022] In this embodiment, the workpiece 1 to be welded is a ring-shaped target material, and the linear interface 4 is a ring-shaped target material interface. Specifically, the workpiece 1 to be welded is a 12-inch sputtering copper ring. The length of the lead-in and lead-out plates is 50 mm, the width is 100 mm, and the thickness is 20 mm. The length of the fixed clamps is 200 mm, the width is 10 mm, and the thickness is 5 mm.
[0023] During welding, one clamp plate of the first and second clamp plate sets 21 and 22 is placed on one side of the workpiece 1 to be welded, then the first and second lead-out plates 11 and 12 are aligned with the linear interface 4, the other clamp plate of the first and second clamp plate sets 21 and 22 is aligned with the previous clamp plate, the first and second sets of fixing bolts 31 and 32 are used to slightly clamp the first and second clamp plate sets 21 and 22, the positions of the first and second lead-out plates 11 and 12 are adjusted to ensure that they are in close contact with the workpiece 1 to be welded, and finally the first and second sets of fixing bolts 31 and 32 are tightened.
[0024] After electron beam welding, a weld 5 is formed, and the first and second lead-out plates 11 and 12 protect the starting point and the ending point of the electron beam welding, respectively, so that the welds on both sides of the interface do not have gaps. The operation is simple, and the lead-in and lead-out plates can be reused without being welded through, thereby reducing production costs.
Claims
1. An electron beam welding interface protection device, characterized by, Comprise: The workpiece (1) to be welded, the first lead-out plate (11), the second lead-out plate (12), the first clamp plate group (21), the second clamp plate group (22), the first fixed bolt group (31) and the second fixed bolt group (32), wherein the workpiece (1) to be welded is provided with a linear interface (4) to be welded, the first lead-out plate (11) and the second lead-out plate (12) are respectively opposite one end of the linear interface (4), and the first lead-out plate (11) and the second lead-out plate (12) are respectively attached to one side of the workpiece (1) to be welded; The first clamp plate group (21) and the second clamp plate group (22) are respectively arranged on both sides of the linear interface (4), the two ends of the first clamp plate group (21) are clamped and fixed by the first fixed bolt group (31), and the two ends of the second clamp plate group (22) are clamped and fixed by the second fixed bolt group (32); The first lead-out plate (11), the workpiece (1) to be welded and the second lead-out plate (12) are sequentially clamped in the first clamp plate group (21) and the second clamp plate group (22).
2. An electron beam welding interface protection device according to claim 1, wherein The first clamp plate group (21) and the second clamp plate group (22) are parallel to the direction of the linear interface (4).
3. An electron beam welding interface protection device according to claim 1 or 2, characterised in that The thickness of the first lead-out plate (11) and the second lead-out plate (12) is consistent with the thickness of the workpiece (1) to be welded.
4. An electron beam welding interface protection device according to claim 1 or 2, characterised in that The material of the first lead-out plate (11) and the second lead-out plate (12) is consistent with the material of the workpiece (1) to be welded.
5. An electron beam welding interface protection device according to claim 1 or 2, wherein The workpiece (1) to be welded is a ring-shaped target material.
6. An electron beam welding interface protection device according to claim 5, wherein, The linear interface (4) is a ring-shaped target material interface.