Electron beam welding and blow-cooling tool

Abstract

The utility model belongs to the technical field of electron beam welding, and discloses an electron beam welding blow-cooling tool which is used for cooling a weldment with a first connecting hole and comprises a main body and a first locking piece, the main body is provided with a first carrying surface for bearing a weldment, a cooling cavity is formed in the main body, a plurality of groups of cooling holes communicated with the cooling cavity are formed in the first carrying surface, the main body is further provided with a gas supply hole communicated with the cooling cavity, and the gas supply hole is communicated with a gas supply port of high-pressure gas supply equipment; the first locking piece can penetrate through the first connecting hole to be connected with the cooling hole in a matched mode so as to fix the weldment to the first carrying face, the material cost for cooling the weldment can be reduced, the cooling speed and the clamping efficiency can be improved, and the consistency of the electron beam welding effect of multiple batches of weldments is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electron beam welding technical field especially relates to a kind of electron beam welding blow cooling tooling. BACKGROUND

[0002] Electron beam welding uses high-energy electron beam as processing heat source, and the metal at the joint of the workpiece is rapidly melted by high-energy electron beam bombardment, and then rapidly cooled to achieve the purpose of welding.

[0003] In the prior art, the following methods are usually used to cool the workpiece to prevent it from deforming due to uneven heating: 1) the entire workpiece is placed in a cooling chamber for overall cooling, which is costly and time-consuming; 2) a compressed air blowing gun is manually operated to blow the workpiece, which relies on the operator's skill and is inefficient, and it is difficult to ensure the consistency of the electron beam welding effect of multiple batches of workpieces; 3) the workpiece is placed on an air-cooled table for air cooling, which requires additional fixtures to fix the workpiece on the air-cooled table, making the clamping process complicated and inefficient. SUMMARY

[0004] The utility model aims to provide a kind of electron beam welding blow cooling tooling, can reduce the material cost of realizing workpiece cooling, improve cooling speed and clamping efficiency, and ensure the consistency of the electron beam welding effect of multiple batches of workpieces.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An electron beam welding blow cooling tooling is provided for cooling a workpiece having a first connecting hole, which includes:

[0007] A main body having a first loading surface for carrying the workpiece, a cooling cavity is provided inside the main body, a plurality of cooling holes are formed on the first loading surface and communicate with the cooling cavity, the main body further has a gas supply hole communicating with the cooling cavity, and the gas supply hole communicates with the gas supply port of a high-pressure gas supply device;

[0008] A first locking member, which can be connected with the cooling hole through the first connecting hole to fix the workpiece on the first loading surface.

[0009] Preferably, a plurality of cooling holes in the cooling holes are arranged at intervals on a circumference centered on the central axis of the main body, and the plurality of cooling holes are arranged at intervals along the radial direction of the central axis of the main body.

[0010] Preferably, the main body further has a second loading surface, which is correspondingly and spacedly arranged with the first loading surface, and the cooling cavity is located between the first loading surface and the second loading surface, and the gas supply hole is formed on the second loading surface.

[0011] Preferably, the number of air supply holes is at least three, and the at least three air supply holes are arranged at intervals on a circumference centered on the central axis of the main body.

[0012] Preferably, a clamping portion in the shape of a cylinder is further arranged on the second loading surface, and a central axis of the clamping portion coincides with the central axis of the main body.

[0013] Preferably, the main body comprises a mounting base and a cooling plate, a cooling cavity is formed between the mounting base and the cooling plate, the first loading surface is formed on a side of the cooling plate away from the cooling cavity, a second connecting hole is formed in the mounting base, a first fixing hole is formed in the cooling plate, and the second locking member is connected with the first fixing hole through the second connecting hole, so that the mounting base and the cooling plate are detachably connected.

[0014] Preferably, a sealing strip is arranged at a detachable connection position of the mounting base and the cooling plate.

[0015] Preferably, a heat dissipation coating is further coated on the first loading surface.

[0016] The electronic beam welding and cooling device has the following beneficial effects:

[0017] The electronic beam welding and cooling device provided by the utility model has the following beneficial effects: the cooling cavity is arranged in the main body, a plurality of cooling holes communicating with the cooling cavity are formed in the first loading surface, and an air supply hole communicating with the high-pressure cooling gas supply equipment is arranged, so that the high-pressure cooling gas generated by the high-pressure gas supply equipment enters the cooling cavity through the air supply hole and is discharged from the cooling hole to blow the welding piece, so that the welding piece is cooled to achieve the welding purpose, and the structure is simplified to reduce the material cost of realizing the cooling of the welding piece; the first locking member is arranged to fix the welding piece on the first loading surface through the first connecting hole and the cooling hole, so that a clamp does not need to be additionally arranged to improve the clamping efficiency of the welding piece, and when a plurality of batches of welding pieces are welded and cooled in sequence, the welding pieces are fixed on the first loading surface at the same spatial position due to the first locking member, so that the plurality of batches of welding pieces can be cooled by the same air volume to ensure the consistency of the electronic beam welding effect of the plurality of batches of welding pieces. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of the electronic beam welding and cooling device provided by the utility model embodiment one;

[0019] Figure 2 is a sectional view of the electronic beam welding and cooling device provided by the utility model embodiment one;

[0020] Figure 3 is an exploded view of the electronic beam welding and cooling device provided by the utility model embodiment two;

[0021] Figure 4 is a sectional view of the electron beam welding cooling device provided by the second embodiment of the present application.

[0022] In the figure:

[0023] 100, welding part; 101, first connecting hole;

[0024] 1, main body; 11, mounting base; 111, second connecting hole; 12, cooling plate; 121, first fixing hole;

[0025] 2, first loading surface;

[0026] 3, cooling cavity;

[0027] 4, cooling hole;

[0028] 5, air supply hole;

[0029] 6, first locking part;

[0030] 7, second loading surface;

[0031] 8, clamping part;

[0032] 9, sealing strip. DETAILED DESCRIPTION

[0033] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all the structures.

[0034] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature is below, under and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.

[0036] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" refer to the orientation or position shown in the drawings, which are for convenience in description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0037] In the prior art, when electron beam welding is performed, the following methods are usually used to cool the welded parts to prevent them from deforming due to uneven heating: 1) the entire welded part is placed in a cooling chamber for overall cooling of the welded part, which has high material costs and takes too long to cool; 2) a dust blowing gun is manually operated to blow compressed air on the workpiece, which relies on the operating skills of the workers and has low cooling efficiency and is difficult to ensure the consistency of the electron beam welding effect of multiple batches of welded parts; and 3) the welding is placed on an air-cooled table to air-cool the welded part, which requires additional fixtures to fix the welded part on the air-cooled table, and the clamping process is complicated and inefficient. To solve the technical problems existing in the prior art of cooling welded parts during electron beam welding, the utility model provides an electron beam welding blowing and cooling tooling that can reduce the material costs of realizing welded part cooling, improve the cooling speed and clamping efficiency, and ensure the consistency of the electron beam welding effect of multiple batches of welded parts. The electric turning and industrial equipment provided by the utility model are described in detail below.

[0038] Embodiment one

[0039] Figure 1 The structure of the electron beam welding blowing and cooling tooling provided by the embodiment one of the utility model is shown in the structure schematic view, Figure 2 The structure of the electron beam welding blowing and cooling tooling provided by the embodiment one of the utility model is shown in the structure schematic view, Figures 1 to 2As shown, the electron beam welding cooling device provided by the embodiment one of the utility model is used for cooling the welding piece 100 with the first connecting hole 101, and comprises a main body 1 and a first locking piece 6; the main body 1 has a first loading surface 2 for loading the welding piece 100, and the main body 1 is internally provided with a cooling cavity 3; a plurality of cooling holes 4, which are in communication with the cooling cavity 3, are formed on the first loading surface 2; the main body 1 is further provided with a gas supply hole 5 in communication with the cooling cavity 3; the gas supply hole 5 is in communication with a gas supply port of a high-pressure gas supply device; the first locking piece 6 can be connected with the cooling hole 4 through the first connecting hole 101 to fix the welding piece 100 on the first loading surface 2. Specifically, the first locking piece 6 is a bolt, the first connecting hole 101 is a through hole, and the cooling hole 4 is a threaded hole; one or more bolts can be screwed with the respective threaded holes to fix the welding piece 100 on the first loading surface 2.

[0040] The electron beam welding cooling device provided by the embodiment one is used for cooling the welding piece 100 with the first connecting hole 101, and comprises a main body 1 and a first locking piece 6; the main body 1 has a first loading surface 2 for loading the welding piece 100, and the main body 1 is internally provided with a cooling cavity 3; a plurality of cooling holes 4, which are in communication with the cooling cavity 3, are formed on the first loading surface 2; the main body 1 is further provided with a gas supply hole 5 in communication with the cooling cavity 3; the gas supply hole 5 is in communication with a gas supply port of a high-pressure gas supply device; the first locking piece 6 can be connected with the cooling hole 4 through the first connecting hole 101 to fix the welding piece 100 on the first loading surface 2. Specifically, the first locking piece 6 is a bolt, the first connecting hole 101 is a through hole, and the cooling hole 4 is a threaded hole; one or more bolts can be screwed with the respective threaded holes to fix the welding piece 100 on the first loading surface 2.

[0041] Continue as Figures 1 to 2As shown, several cooling holes 4 in any group of cooling holes 4 are arranged at intervals on a circumference centered on the central axis of the main body 1. Multiple groups of cooling holes 4 are arranged radially at intervals along the central axis of the main body 1, thereby ensuring that the cooling holes 4 are evenly distributed on the first cross-sectional surface 2. This ensures that when cooling the weldment 100, the number of cooling holes 4 corresponding to any part of the weldment 100 is the same, so that the unit airflow received by any position of the weldment 100 is the same, thus ensuring that the weldment 100 cools down uniformly as a whole and preventing the weldment 100 from cooling down too quickly in some areas and causing uneven heating, which could lead to deformation of the weldment 100. It should be noted that the cooling holes 4 in this embodiment can be 10 groups, 15 groups, 20 groups, or even more groups. There is no limitation here, as long as the weldment 100 can be fixed to the first cross-sectional surface 2 by the first locking member 6 passing through the first connecting hole 101 and cooperating with the cooling holes 4, so as to ensure that the weldment 100 cools down uniformly as a whole. The specific number of cooling hole groups 4 can be reasonably set by those skilled in the art according to the actual cooling requirements of the weldment 100.

[0042] Continue as Figures 1 to 2 As shown, the main body 1 also has a second cross-section 7, which corresponds to and is spaced apart from the first cross-section 2. The cooling chamber 3 is located between the first cross-section 2 and the second cross-section 7. The air supply hole 5 is opened on the second cross-section 7, so that when the high-pressure cooling gas enters the cooling chamber 3 through the air supply hole 5, the high-pressure cooling gas is directly discharged from the cooling hole 4 to purge the weldment 100, preventing the high-pressure cooling gas from accumulating in the cooling chamber 3 and failing to be discharged from the cooling hole 4 in time to purge the weldment 100, thereby ensuring the cooling efficiency of the weldment 100. In some embodiments, the number of air supply holes 5 is at least three, and the at least three air supply holes 5 are arranged at intervals on a circumference centered on the central axis of the main body 1, so that the high-pressure cooling gas can flow into the cooling chamber 3 evenly, preventing the high-pressure cooling gas flowing into a local space in the cooling chamber 3 from being too little, and the high-pressure cooling gas discharge from the cooling hole 4 directly in that local space from being too low, which would lead to the weldment 100 cooling too quickly and unevenly, and thus causing the weldment 100 to deform.

[0043] Continue as Figures 1 to 2 As shown, a cylindrical clamping part 8 is also provided on the second cross surface 7. The central axis of the clamping part 8 coincides with the central axis of the main body 1, so that the clamping part 8 is clamped onto the three-jaw chuck. By utilizing the self-centering characteristic of the three-jaw chuck, the machine tool spindle is connected to the three-jaw chuck and drives the main body 1 to rotate. The welding torch that emits a high-energy electron beam can remain stationary and generate a high-energy-density electron beam to form an annular weld. Therefore, it is not necessary to set up an additional drive mechanism to drive the welding torch to move and generate an annular weld.

[0044] In some embodiments, the first surface 2 is also coated with a heat dissipation coating, so that when the welding part 100 conducts heat to the cooling plate 12, the heat can be quickly dissipated from the cooling plate 12, thereby accelerating the conduction efficiency of the welding part 100 to the cooling plate 12, thereby improving the heat dissipation efficiency of the electron beam welding cooling device. Specifically, the heat dissipation coating can be a silver powder paint, a rust-proof paint, a heat-conducting silicone grease or a heat-conducting glue, etc. As long as the heat dissipation coating is made of a heat dissipation coating material, it is within the scope of the present application, and will not be repeated here.

[0045] Embodiment two

[0046] The present embodiment also provides an electron beam welding cooling device, which has substantially the same structure as the electron beam welding cooling device in Embodiment One, except that in Embodiment One, the main body 1 is integrally formed, and when the welding slag or impurities fall into the cooling cavity 3 through the cooling hole 4, it is not convenient to remove the welding slag or impurities from the cooling cavity 3. The main body 1 in the present embodiment is split, which can solve the above technical problems. The following will be described in detail in combination with Figures 3 to 4 The electron beam welding cooling device of the present embodiment is described in detail.

[0047] Figure 3 An exploded view of the electron beam welding cooling device provided by Embodiment Two of the present application is shown, Figure 4 A cross-sectional view of the electron beam welding cooling device provided by Embodiment Two of the present application is shown. As Figures 3 to 4 shown, the main body 1 includes a mounting base 11 and a cooling plate 12, and the mounting base 11 and the cooling plate 12 form a cooling cavity 3 therebetween. The cooling plate 12 is formed with a first surface 2 away from the cooling cavity 3. The mounting base 11 is provided with a second connecting hole 111, and the cooling plate 12 is provided with a first fixing hole 121. A second locking member passes through the second connecting hole 111 and is connected with the first fixing hole 121 in a matched manner, so as to detachably connect the mounting base 11 and the cooling plate 12. Therefore, when the welding slag or impurities fall into the cooling cavity 3, the cooling plate 12 can be detached from the mounting base 11, and the welding slag or impurities in the cooling cavity 3 can be cleaned by pouring the mounting base 11. Specifically, the first fixing hole is a threaded hole, the second connecting hole 111 is a through hole, and the second locking member is a bolt. The bolt passes through the through hole and is screwed with the threaded hole, so as to realize the detachable connection between the mounting base 11 and the cooling plate 12.

[0048] In actual use of the electron beam welding cooling device provided by the present embodiment, high-pressure cooling gas may flow out from the gap between the mounting base 11 and the cooling plate 12. To solve the above technical problem, continue as Figures 3 to 4As shown, the detachable connection position of the mounting base 11 and the cooling plate 12 is provided with a sealing strip, so that the high-pressure cooling gas can be prevented from flowing out from the gap between the mounting base 11 and the cooling plate 12.

[0049] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. An electron beam welding blow cooling tooling for cooling a welded piece (100) having a first connecting hole (101), characterized in that, The electron beam welding cooling device comprises: a main body (1) having a first loading surface (2) for loading the welding piece (100), the main body (1) being internally provided with a cooling cavity (3), a plurality of cooling holes (4) being formed in the first loading surface (2) and being in communication with the cooling cavity (3), the main body (1) further having a gas supply hole (5) in communication with the cooling cavity (3) and being in communication with a gas supply opening of a high-pressure gas supply device; a first locking member (6) capable of being connected with the cooling holes (4) through the first connecting holes (101) to fix the welding piece (100) to the first loading surface (2).

2. The electron beam welding blowoff tooling of claim 1, wherein, A plurality of the cooling holes (4) in one group of the cooling holes (4) are arranged at intervals on a circumference with the central axis of the main body (1) as the center, and a plurality of groups of the cooling holes (4) are arranged at intervals along the radial direction of the central axis of the main body (1).

3. The electron beam welding blowoff tooling of claim 1, wherein, The main body (1) further has a second loading surface (7) corresponding to and arranged at intervals with the first loading surface (2), and the cooling cavity (3) is located between the first loading surface (2) and the second loading surface (7), and the gas supply hole (5) is formed in the second loading surface (7).

4. The electron beam welding blowoff tooling of claim 3, wherein, The number of the gas supply holes (5) is at least three, and the at least three gas supply holes (5) are arranged at intervals on a circumference with the central axis of the main body (1) as the center.

5. The electron beam welding blowoff tooling of claim 3, wherein, The second loading surface (7) is further provided with a clamping portion (8) in the shape of a cylinder, and the central axis of the clamping portion (8) coincides with the central axis of the main body (1).

6. The electron beam welding blowoff tooling of claim 1, wherein, The main body (1) comprises a mounting base (11) and a cooling plate (12), and the mounting base (11) and the cooling plate (12) form the cooling cavity (3) therebetween, the cooling plate (12) forms the first loading surface (2) away from the cooling cavity (3), the mounting base (11) is provided with a second connecting hole (111), and the cooling plate (12) is provided with a first fixing hole (121), a second locking member being connected with the first fixing hole (121) through the second connecting hole (111) to detachably connect the mounting base (11) and the cooling plate (12).

7. The electron beam welding blowoff tooling of claim 6, wherein, The detachable connection part of the mounting base (11) and the cooling plate (12) is provided with a sealing strip (9).

8. The electron beam welding blowoff tooling of any one of claims 1-7, wherein, The first loading surface (2) is further coated with a heat dissipation coating.

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