Vacuum brazing clamping tool for large aluminum alloy parts
By using a multi-layer plate structure and a vacuum brazing clamping fixture made of stainless steel, the problem of reaction force affecting large aluminum alloy parts during clamping was solved, achieving efficient and stable welding quality and improved efficiency.
Patent Information
- Application Number
- CN202423208915.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional tooling fixtures tend to generate large reaction forces in the center area of large aluminum alloy parts when clamping them, which affects welding quality and efficiency.
A multi-layered vacuum brazing clamping fixture is designed. By stacking and staggering layers one through five, combined with stainless steel material and fastening connections, the reaction force generated by clamping force is dispersed, ensuring full and uniform contact between the parts and the brazing filler metal.
It enables efficient and stable clamping of large aluminum alloy parts during the brazing process, improves welding quality and efficiency, avoids poor welding rate in the central area, and adapts to the needs of parts of different sizes and shapes.
Smart Images
Figure CN223776205U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding technical field, concretely relates to a large -scale aluminum alloy part vacuum brazing clamping frock. BACKGROUND
[0002] In the manufacturing process of large -scale aluminum alloy parts, the brazing technology is widely used in precision, complex and the welding of components composed of different materials because of its small deformation, joint smooth and beautiful characteristics. The brazing process requires that the workpiece be carefully processed and strictly cleaned before welding to ensure the cleanliness of the workpiece contact surface and remove oil stains and thick oxide film. In addition, in order to ensure the welding quality, the assembly gap between the workpieces needs to be accurately controlled between 0.01-0.1 millimeter.
[0003] For the planar lap brazing structure of large -scale aluminum alloy parts, the parts are usually welded in the form of planar lap with filler material. In order to ensure the full contact of the lap joint surface of the parts and the surface of the filler material, a clamping force needs to be applied to the joint by using a frock clamp. However, due to the large size of the parts, the traditional frock clamp will generate a large reaction force in the center area of the parts during clamping, which will cause poor welding rate in this area, thereby affecting the welding quality and efficiency.
[0004] In view of the above problems, there is an urgent need in the prior art for a frock clamp that can ensure full contact of the parts and the filler material while reducing the reaction force generated during clamping, thereby ensuring the welding quality and improving the welding efficiency. UTILITY MODEL CONTENTS
[0005] In order to solve the above problems, the utility model provides a large -scale aluminum alloy part vacuum brazing clamping frock, which realizes efficient and stable clamping of large -scale aluminum alloy parts during brazing process through the multi -layer plate structure and the clever clamping mode, and significantly improves the brazing quality and efficiency.
[0006] The technical scheme of the utility model is as follows:
[0007] A large -scale aluminum alloy part vacuum brazing clamping frock, including one board layer, two board layer, three board layer, four board layer and five board layer, one board layer is placed with the bottom layer, two board layer is placed in one board layer top, first part is placed in two board layer top, three board layer is placed in the top of the first part, the second part is placed in three board layer top, four board layer is placed in the top of the second part, five board layer is provided in the top of four board layer, one board layer and five board layer fastening connection.
[0008] The center of one board layer, two board layer, three board layer, four board layer, five board layer and the part is on the same straight line.
[0009] The first plate layer and the fifth plate layer are large square plates, and through holes are arranged at positions corresponding to the peripheries of the first plate layer and the fifth plate layer, and the first plate layer and the fifth plate layer are fastened by means of screw nuts after a screw rod is penetrated through the through holes of the first plate layer and the fifth plate layer.
[0010] The first plate layer and the fifth plate layer are large square plates, and through holes are arranged at positions corresponding to the peripheries of the first plate layer and the fifth plate layer, and the first plate layer and the fifth plate layer are fastened by means of screw nuts after a screw rod is penetrated through the through holes of the first plate layer and the fifth plate layer.
[0011] The second plate layer is a plurality of same steel pipes, which are uniformly arranged above the first plate layer.
[0012] The third plate layer is a plurality of same steel pipes, which are uniformly arranged above the first part, and the arrangement direction of the third plate layer is perpendicular to the arrangement direction of the second plate layer.
[0013] The fourth plate layer is a plurality of same steel pipes, which are uniformly arranged above the second part, and the arrangement direction of the fourth plate layer is perpendicular to the arrangement direction of the third plate layer.
[0014] The first plate layer, the second plate layer, the third plate layer, the fourth plate layer, the fifth plate layer and the part are made of 304 stainless steel.
[0015] The beneficial effects of the utility model lie in:
[0016] 1. The large aluminum alloy part vacuum brazing clamping tool is designed through the multi-layer plate layer structure and the ingenious clamping mode, efficient and stable clamping of the large aluminum alloy part in the brazing process is realized, and the brazing quality and efficiency are improved.
[0017] 2. The large aluminum alloy part vacuum brazing clamping tool is designed through the multi-layer plate layer (the first plate layer to the fifth plate layer), the full contact of the part and the filler metal at the lap joint is ensured, the contact surface of the part and the filler metal can be kept close and uniform in the clamping process, the wettability and capillary flowability of the filler metal are improved, and the quality of the welded joint is improved.
[0018] 3. The large aluminum alloy part vacuum brazing clamping tool is designed, the counterforce is effectively dispersed and weakened by arranging the steel pipes (the second plate layer, the third plate layer and the fourth plate layer) between different plate layers and using the fastening connection square plates (the first plate layer and the fifth plate layer) at the bottom layer and the top layer, the clamping force can be uniformly distributed on the whole workpiece, and the welding rate of the center area is improved.
[0019] 4. The utility model discloses a large -scale aluminum alloy part vacuum brazing clamping frock, this large -scale aluminum alloy part vacuum brazing clamping frock promotes welding efficiency: because the reasonable design of this frock and easy operation can greatly shorten the time of workpiece clamping and dismounting, thereby promote the welding efficiency, simultaneously, because the improvement of welding quality also reduces the rework and repair time because of the welding defect, further improves the overall production efficiency.
[0020] 5. The utility model discloses a large -scale aluminum alloy part vacuum brazing clamping frock, this large -scale aluminum alloy part vacuum brazing clamping frock adopts stainless steel material, has excellent strength and corrosion -resisting performance, can adapt to the brazing demand of large -scale aluminum alloy part, simultaneously, through the quantity and size of adjusting board layer, this frock can also adapt to the part of different size and shape, has extensive applicability. BRIEF DESCRIPTION OF DRAWINGS
[0021] The scheme and advantages of the present application will become clear to those skilled in the art from the following detailed description of the preferred embodiments. The drawings are merely intended to illustrate the preferred embodiments and are not considered to be limiting to the present utility model.
[0022] In the drawings:
[0023] Figure 1 It is a three -dimensional explosion structure schematic diagram of a large -scale aluminum alloy part vacuum brazing clamping frock of the utility model embodiment;
[0024] The components represented by the reference numerals in the drawings are:
[0025] The utility model: 1, the first board layer, 2, the second board layer, 3, the third board layer, 4, the fourth board layer, 5, the fifth board layer, 6, the part. DETAILED DESCRIPTION
[0026] As Figure 1 Indicated, large -scale aluminum alloy part vacuum brazing clamping frock includes the first board layer 1, the second board layer 2, the third board layer 3, the fourth board layer 4 and the fifth board layer 5 and two large -scale aluminum alloy parts 6 to be welded.
[0027] The first board layer 1: as the bottom layer, large square board, material is 304 stainless steel. The through hole is set up in the corresponding position of the periphery of the first board layer 1, is used for the fastening connection of subsequent five board layers 5.
[0028] The second board layer 2: be formed by the even arrangement of several same steel pipes, material is also 304 stainless steel. These steel pipes are placed above the first board layer 1, are used for supporting and positioning the first part 6.
[0029] The first part 6: placed on the second layer 2, and make sure the center of the first layer 1, the center of the second layer 2 in the same straight line.
[0030] The third layer 3: by a number of the same steel tube is placed uniformly, material for 304 stainless steel. These steel tube placed on the first part 6, and its direction of placement and the direction of placement of the second layer 2 is perpendicular, for further support and positioning.
[0031] The second part 6: placed on the third layer 3, and make sure the center of the first layer 1, the center of the second layer 2, the center of the third layer 3 in the same straight line.
[0032] The fourth layer 4: by a number of the same steel tube is placed uniformly, material for 304 stainless steel. These steel tube placed on the second part 6, and its direction of placement and the direction of placement of the third layer 3 is perpendicular, for the uppermost layer of the fifth layer 5 to provide support.
[0033] The fifth layer 5: as the top layer, large square plate, material for 304 stainless steel. In the same position of the first layer 1 and the fifth layer 5 is provided with through hole, with screw through these through hole after the nut is tight way to fasten the first layer 1 and the fifth layer 5 fastening connection.
[0034] The first layer 1 and the fifth layer 5 outside is provided with reinforcing rib, to improve the overall strength and stability of the tool.
[0035] The clamping steps of the large aluminum alloy parts vacuum brazing clamping tool:
[0036] The first layer 1 is placed on the workbench, and then the steel tube of the second layer 2 is placed uniformly above it; the first part 6 is placed on the second layer 2, and make sure the center of the first layer 1, the center of the second layer 2 in the same straight line; the third layer 3 is placed on the first part 6, and its direction of placement and the direction of placement of the second layer 2 is perpendicular; the second part 6 is placed on the third layer 3, and make sure the center of the first layer 1, the center of the second layer 2, the center of the third layer 3 in the same straight line; the fourth layer 4 is placed on the second part 6, and its direction of placement and the direction of placement of the third layer 3 is perpendicular; the fifth layer 5 is placed on the fourth layer 4, and the through hole of the first layer 1 and the fifth layer 5 is penetrated by the screw, and the whole is fixed by the nut in the positive and reverse way.
[0037] Since the second layer 2, the third layer 3 and the fourth layer 4 are respectively arranged between the part and the steel plate (the first layer 1 and the fifth layer 5) which applies the clamping force, the reaction force generated by the clamping force is effectively dispersed by the layers, and the reaction force is weakened layer by layer, so that the reaction force generated by the clamping force has no effect on the central region of the part; the clamping method ensures that the part lap surface at the lap joint and the solder surface are in full contact, thereby improving the welding quality; at the same time, since the tool structure is compact and easy to operate, the welding efficiency is also improved.
Claims
1. A large aluminum alloy part vacuum brazing fixture, characterized by, It includes a first board layer (1), a second board layer (2), a third board layer (3), a fourth board layer (4) and a fifth board layer (5), the first board layer (1) is placed at the bottom layer, the second board layer (2) is placed above the first board layer (1), the first part (6) is placed above the second board layer (2), the third board layer (3) is placed above the first part (6), the second part (6) is placed above the third board layer (3), the fourth board layer (4) is placed above the second part (6), the fifth board layer (5) is placed above the fourth board layer (4), the first board layer (1) and the fifth board layer (5) are tightly connected.
2. The vacuum brazing fixture for large aluminum alloy parts of claim 1, wherein, The center of the first board layer (1), the second board layer (2), the third board layer (3), the fourth board layer (4), the fifth board layer (5) and the part (6) are on the same straight line.
3. The vacuum brazing fixture for large aluminum alloy parts of claim 1, wherein, The first board layer (1) and the fifth board layer (5) are large square plates, and through holes are arranged at corresponding positions of the periphery of the first board layer (1) and the fifth board layer (5), and the first board layer (1) and the fifth board layer (5) are fastened by screwing a screw through the through holes of the first board layer (1) and the fifth board layer (5) and then tightening the nut.
4. The vacuum brazing fixture of claim 3, wherein, A reinforcing rib is arranged outside the first board layer (1) and the fifth board layer (5).
5. The vacuum brazing fixture of claim 3, wherein the fixture is configured to hold a large aluminum alloy component. The second board layer (2) is a plurality of same steel pipes, which are uniformly placed above the first board layer (1).
6. A large aluminum alloy part vacuum brazing fixture as defined in claim 5, wherein, The third board layer (3) is a plurality of same steel pipes, which are uniformly placed above the first part (6), and the placing direction of the third board layer (3) is perpendicular to the placing direction of the second board layer (2).
7. A large aluminum alloy part vacuum brazing fixture as defined in claim 6, wherein, The fourth board layer (4) is a plurality of same steel pipes, which are uniformly placed above the second part (6), and the placing direction of the fourth board layer (4) is perpendicular to the placing direction of the third board layer (3).
8. A large aluminum alloy part vacuum brazing fixture as defined in claim 1 wherein, The material of the first board layer (1), the second board layer (2), the third board layer (3), the fourth board layer (4), the fifth board layer (5) and the part (6) is 304 stainless steel.