A welding assembly for diffusion bonding multilayer automatic separation

Abstract

This invention relates to a welding assembly device suitable for the automatic separation of multi-layer diffusion welding. It includes a welding fixture and an automatic lifting device. The welding fixture has positioning keys on both end faces and a stop block on its rear end face. The lifting system of the automatic lifting device includes a wire rope, a top plate, guide bars, and length-fixing screws. The wire rope is suspended from the upper end face of the top plate. Multiple guide bars are vertically distributed on the lower end face of the top plate, with adjacent guide bars connected by length-fixing screws. The positioning system of the automatic lifting device includes positioning pins and a flip-positioning block. The guide bars are positioned and installed using positioning pins and positioning keys. The flip-positioning block is rotatably installed on the crossbeam of the frame and cooperates with the stop block to achieve the positioning of the parts to be welded. The purpose of this welding assembly device for the automatic separation of multi-layer diffusion welding is to solve the problems of high strength and low efficiency in the handling methods of existing welding fixtures.

Description

Technical Field

[0001] This invention relates to the field of diffusion welding tooling technology, and more specifically to a welding assembly device suitable for automatic separation of multi-layer diffusion welding. Background Technology

[0002] In the mass diffusion welding production of plate parts, in order to increase production capacity and improve the utilization efficiency of diffusion welding furnace, it is necessary to weld as many parts as possible at once and to stack the welding fixtures.

[0003] Currently, in the assembly and disassembly of welding fixtures, lighter fixtures are assembled manually by operators, while heavier fixtures are transported and assembled using cranes. A certain plate welding fixture, during diffusion welding, is assembled by overlapping placement, such as... Figure 1(a) , 1(b) As shown. Each tool weighs approximately 10 kilograms and is assembled manually by two operators.

[0004] Because the welding of certain plate-type parts is a batch production project with a large output, the tooling is loaded and unloaded frequently. Each tool weighs approximately 10 kilograms, and each time it is handled manually, which is physically demanding. If each tool were to be moved by a crane, the efficiency would be low, the crane would be occupied for too long, and the assembly accuracy would be low.

[0005] Therefore, the inventors have provided a welding assembly apparatus suitable for the automatic separation of multi-layer diffusion welding. Summary of the Invention

[0006] (1) Technical problems to be solved

[0007] This invention provides a welding assembly device suitable for automatic separation of multi-layer diffusion welding, which solves the technical problems of high strength and low efficiency in the handling methods of existing welding tooling.

[0008] (2) Technical solution

[0009] This invention provides a welding assembly device suitable for the automatic separation of multiple layers in diffusion welding, comprising a welding fixture and an automatic lifting device. The automatic lifting device includes a frame, a power system, a lifting system, a positioning system, and a transport system. The power system is installed on the upper surface of the frame and drives the lifting system to move up and down within the frame to lift the welding fixture. The lifting system positions and clamps the welding fixture via the positioning system. The transport system is used to feed the welding fixture into and out of the frame.

[0010] The welding fixture has positioning keys on both ends and a stop block on its rear end. The lifting system includes a wire rope, a top plate, guide bars, and a length-fixing screw. The wire rope is hung on the upper end of the top plate. Multiple guide bars are distributed vertically on the lower end of the top plate. Adjacent guide bars are connected by the length-fixing screw. The positioning system includes a positioning pin and a flip positioning block. The guide bars are positioned and installed by the positioning pin and the positioning key. The flip positioning block is rotatably installed on the crossbeam of the frame and cooperates with the stop block to achieve the positioning of the part to be welded.

[0011] Furthermore, the frame is installed on the ground, and linear guide rail pairs are installed on its longitudinal beams, and the lifting system moves vertically along the linear guide rail pairs.

[0012] Furthermore, the power system includes a servo motor, a reducer, and a rotating shaft. The output end of the servo motor drives the rotating shaft to rotate through the reducer. The rotating shaft is connected to the wire rope and moves synchronously.

[0013] Furthermore, the top plate is connected to the guide strip of the first layer, and the remaining two adjacent guide strips are connected by the fixed-length screws.

[0014] Furthermore, the length of the fixed-length screw is greater than 100mm.

[0015] Furthermore, each of the fixed-length screws is sequentially inserted into and connected to the three layers of guide strips.

[0016] Furthermore, the flipping positioning block includes a first positioning part and a second positioning part connected to each other, and the included angle between the first positioning part and the second positioning part is less than 90°;

[0017] When the flipping positioning block is in the first state, the vertical distance between the front end of the first positioning part and the front end of the second positioning part is the distance between the collision blocks on the two adjacent welding fixtures.

[0018] Furthermore, the flipping positioning block is sickle-shaped.

[0019] Furthermore, the impact block is wedge-shaped.

[0020] Furthermore, the lateral coordinate values ​​of the center points of the impact blocks on each layer of the welding fixture are different, and the lateral coordinate values ​​increase / decrease sequentially from the upper layer to the lower layer.

[0021] (3) Beneficial effects

[0022] In summary, this invention improves the assembly method of welding fixtures by using a lifting system to raise and lower the fixtures, reducing the labor intensity of workers. Furthermore, the coordination between the positioning system and the lifting system ensures precise positioning of the welding fixtures during the raising and lowering process, thus improving assembly accuracy. This welding assembly device transforms manual assembly into automated assembly, improving the efficiency of mass production. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1(a) is a schematic diagram of the overall assembly structure of the existing plate welding fixture in the diffusion welding process;

[0025] Figure 1(b) is a schematic diagram of a partial assembly structure of an existing plate welding fixture during the diffusion welding process;

[0026] Figure 2 This is a first-view structural schematic diagram of a welding assembly device suitable for automatic separation of multilayer diffusion welding provided in an embodiment of the present invention;

[0027] Figure 3 This is a second-view structural schematic diagram of a welding assembly device suitable for automatic separation of multilayer diffusion welding, provided in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the mounting groove in a welding fixture provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of a locating key in a welding fixture provided in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of a welding fixture provided in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of a lifting system and welding fixture in a closed state, provided by an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of a lifting system and welding fixture in a raised state, provided by an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of a fixed-length screw in a lifting system provided by an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the assembly structure of a positioning pin in a positioning system provided by an embodiment of the present invention;

[0035] Figure 11 yes Figure 10 A cross-sectional view;

[0036] Figure 12 This is a schematic diagram of the assembly structure of a flip positioning block in a positioning system provided by an embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the structure of the flip positioning block in the positioning state;

[0038] Figure 14 This is a schematic diagram of the structure where the flip positioning block is in the retracted state.

[0039] In the picture:

[0040] A - Part to be welded; B - Upper die of diffusion welding fixture; C - Lower die of diffusion welding fixture; 1 - Welding fixture; 101 - Positioning key; 102 - Impact block; 2 - Automatic lifting device; 201 - Frame; 2011 - Crossbeam; 2012 - Longitudinal beam; 2013 - Linear guide pair; 202 - Power system; 203 - Lifting system; 2031 - Wire rope; 2032 - Top plate; 2033 - Guide bar; 2034 - Fixed length screw; 204 - Positioning system; 2041 - Positioning pin; 2042 - Flip positioning block; 205 - Transportation system; D - Positioning position of the part to be welded. Detailed Implementation

[0041] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention. That is, the present invention is not limited to the described embodiments, and any modifications, substitutions and improvements to the parts, components and connection methods are covered without departing from the spirit of the present invention.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Figure 2 This invention provides a welding assembly device suitable for automatic separation of multi-layer diffusion welding, as described in an embodiment of the present invention. Figure 2 As shown, the welding assembly device may include a welding fixture 1 and an automatic lifting device 2. The automatic lifting device 2 includes a frame 201, a power system 202, a lifting system 203, a positioning system 204, and a transportation system 205. The power system 202 is installed on the upper end face of the frame 201 and is used to drive the lifting system 203 to move up and down within the frame 201 to realize the lifting and lowering of the welding fixture 1. The lifting system 203 positions and clamps the welding fixture 1 through the positioning system 204. The transportation system 205 is used to send the welding fixture 1 into and out of the interior of the frame 201. The welding fixture 1 has positioning keys 101 on both ends and a stop block 102 on its rear end. The lifting system 203 includes a wire rope 2031, a top plate 2032, guide bars 2033, and a length-fixing screw 2034. The wire rope 2031 is hung on the upper end face of the top plate 2032. Multiple guide bars 2033 are vertically distributed on the lower end face of the top plate 2032. Adjacent guide bars 2033 are connected by the length-fixing screw 2034. The positioning system 204 includes a positioning pin 2041 and a flipping positioning block 2042. The guide bars 2033 are positioned and installed with the positioning keys 101 via the positioning pins 2041. Figure 12 As shown, the flip positioning block 2042 is rotatably mounted on the crossbeam 2011 of the frame 201 and cooperates with the impact block 102 to achieve the positioning of the part to be welded.

[0046] In the above implementation, firstly, based on the structural characteristics of existing welding fixtures, a lifting position is added: two mounting slots are machined on opposite sides of each welding fixture (e.g., Figure 4 As shown), then the positioning key 101 is processed (as shown). Figure 5As shown, the positioning key 101, after assembly, is installed in the positioning slot and serves as the lifting position for the tooling. A stop block 102, which cooperates with the flipping positioning block 2042 for positioning, is set on the back side of each welding tool. Then, based on the form and spacing of the lifting positions, an automatic lifting device 2 is developed. For example... Figure 6 As shown, the horizontal coordinate values ​​of the center point of the impact block 102 on each layer of welding fixture 1 are different, and the horizontal coordinate values ​​increase / decrease sequentially from the upper layer to the lower layer.

[0047] The frame 201 serves as the main support for the entire automatic lifting device 2, mounted on the ground with expansion bolts and bearing the load of the entire device. Six sets of linear guide rails are installed on it, responsible for the vertical movement of the entire lifting system 203. The transport system 205 mainly consists of roller trolleys, manually propelled. This system is responsible for the welding fixture 1 entering the automatic lifting device for positioning, awaiting lifting, and exiting after assembly, awaiting hoisting.

[0048] The lifting system 203 is directly connected to the linear guide pair 2013, such as Figure 7-8 As shown, the spacing of the guide bars 2033 is consistent with the spacing of the positioning keys 101 on both sides of the welding fixture 1. When the welding fixture 1 is pushed into place by the automatic lifting device by the transport system 205, the positioning keys 101 can be smoothly inserted into the gap of the guide bars of the lifting system 203. The lifting system 203 raises its top plate 2032 by the wire rope 2031 and lifting ring at its top.

[0049] As an optional implementation method, such as Figure 2-3 As shown, the power system 202 includes a servo motor, a reducer and a rotating shaft. The output end of the servo motor drives the rotating shaft to rotate through the reducer. The rotating shaft is connected to the wire rope 2031 and moves synchronously.

[0050] As an optional implementation, the top plate 2032 is connected to the guide strip 2033 of the first layer, and the other two adjacent guide strips 2033 are connected by a fixed-length screw 2034.

[0051] Specifically, when welding fixture 1 is delivered to the lifting station by the transport system 205, there is a certain positional error between welding fixtures 1. When the guide bar 2033 rises, it lifts the positioning key 101, causing the welding fixture 1 to rise. For example... Figure 10-11 As shown, the locating pins 2041 on the guide bar 2033 automatically insert into the locating holes of the locating key 101, realizing the locating function of the four locating pins 2041 and aligning the positions between the multi-layer welding fixture 1. After the parts to be welded are assembled, the guide bar 2033 descends, pressing the welding fixture 1 tightly. Due to the positioning of the four locating pins 2041, the welding fixture 1 can precisely control the assembly position.

[0052] As an optional implementation, the length of the fixed-length screw 2034 is greater than 100mm. Since the maximum travel distance between two adjacent guide bars 2033 is 100mm, the length of the fixed-length screw 2034 should be greater than 100mm. The thickness of the guide bar 2033 is 60mm. The fixed-length screw 2034 needs to span three layers of guide bars 2033. The specific arrangement of the fixed-length screw 2034 is as follows... Figure 9 As shown.

[0053] As an optional implementation method, such as Figure 12-14 As shown, the flip positioning block 2042 includes a first positioning part and a second positioning part connected to each other, and the included angle between the first positioning part and the second positioning part is less than 90°; when the flip positioning block 2042 is in the first state, the vertical distance between the front end of the first positioning part and the front end of the second positioning part is the distance between the impact blocks 102 on the two adjacent welding fixtures 1.

[0054] Specifically, the flipping positioning block 2042 has a set rotation angle on the crossbeam 2011. The specific value of the rotation angle is determined based on the specific structural form of the flipping positioning block 2042 and the impact block 102, and is not specifically limited here. When the value is 90°, the first positioning part can rotate from the vertical direction to the horizontal direction, and the second positioning part can correspondingly rotate from the horizontal direction to the vertical direction. When the welding fixture 1 is lifted by the lifting system 203, the impact block 102 fixed on the welding fixture 1 will cause the flipping positioning block 2042 to flip to a fixed position, thereby achieving precise positioning of the part (e.g., Figure 13 (As shown); When the batching operation is completed, the lifting system 203 lowers the welding fixture 1, the impact block 102 moves downward, and the flipping positioning block 2042 flips downward and retracts (as shown). Figure 14 (As shown).

[0055] As an alternative implementation, in order to achieve precise positioning during the lifting and lowering of the welding fixture, the flipping positioning block 2042 can be designed as a sickle-shaped structure and the impact block 102 can be designed as a wedge-shaped structure.

[0056] The working process of the automatic lifting device is as follows:

[0057] 1) Use a crane to transport the stacked tooling to the fixed position on the roller trolley;

[0058] 2) Manually push the roller trolley to position the welding fixture into the lifting device;

[0059] 3) Control the servo motor to drive the wire rope to rise. When the top plate is lifted upward by the wire rope, it will drive the first layer of guide bars to rise.

[0060] 4) When the first layer of guide bars rises to 100mm, it drives the second layer of fixed-length screws and the second layer of guide bars to move upward; and so on, until all guide bars are pulled apart by 100mm.

[0061] 5) At this point, manual assembly of the welding fixtures begins;

[0062] 6) After the welding fixtures are assembled, control the servo motor to slowly lower the lifting system until all the welding fixtures are clamped.

[0063] 7) Manually push the roller trolley out, and then use a crane to lift the assembled welding fixture into the furnace for welding.

[0064] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. The present invention is not limited to the specific steps and structures described above and shown in the figures. Furthermore, for the sake of brevity, detailed descriptions of known methods and techniques are omitted here.

[0065] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art without departing from the scope of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A welding assembly device suitable for automatic separation of multi-layer diffusion welding, characterized in that, The system includes a welding fixture (1) and an automatic lifting device (2). The automatic lifting device (2) includes a frame (201), a power system (202), a lifting system (203), a positioning system (204), and a transportation system (205). The power system (202) is installed on the upper surface of the frame (201) and is used to drive the lifting system (203) to move up and down within the frame (201) to achieve the lifting and lowering of the welding fixture (1). The lifting system (203) positions and clamps the welding fixture (1) through the positioning system (204). The transportation system (205) is used to send the welding fixture (1) into and out of the frame (201). The welding fixture (1) has positioning keys (101) on both ends and a stop block (102) on its rear end. The lifting system (203) includes a wire rope (2031), a top plate (2032), guide bars (2033), and a length-fixing screw (2034). The wire rope (2031) is hung on the upper end of the top plate (2032). Multiple guide bars (2033) are arranged vertically on the lower end of the top plate (2032). Two adjacent guide bars are arranged vertically on the lower end of the top plate (2032). The guide bar (2033) is connected by the fixed length screw (2034). The positioning system (204) includes a positioning pin (2041) and a flip positioning block (2042). The guide bar (2033) is positioned and installed with the positioning key (101) through the positioning pin (2041). The flip positioning block (2042) is rotatably installed on the crossbeam (2011) of the frame (201) and cooperates with the impact block (102) to realize the positioning of the part to be welded.

2. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, The frame (201) is installed on the ground, and a linear guide pair (2013) is installed on its longitudinal beam (2012). The lifting system (203) moves vertically along the linear guide pair (2013).

3. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, The power system (202) includes a servo motor, a reducer and a rotating shaft. The output end of the servo motor drives the rotating shaft to rotate through the reducer. The rotating shaft is connected to the wire rope (2031) and moves synchronously.

4. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, The top plate (2032) is connected to the guide strip (2033) of the first layer, and the other two adjacent guide strips (2033) are connected by the fixed length screw (2034).

5. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, The length of the fixed-length screw (2034) is greater than 100mm.

6. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, Each of the fixed-length screws (2034) is sequentially inserted and connected to the three layers of guide strips (2033).

7. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 1, characterized in that, The flip positioning block (2042) includes a first positioning part and a second positioning part connected to each other, and the included angle between the first positioning part and the second positioning part is less than 90°; When the flipping positioning block (2042) is in the first state, the vertical distance between the front end of the first positioning part and the front end of the second positioning part is the distance between the collision blocks (102) on the two adjacent welding fixtures (1).

8. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 7, characterized in that, The flipping positioning block (2042) is sickle-shaped.

9. The welding assembly device for automatic separation of multi-layer diffusion welding according to claim 8, characterized in that, The impact block (102) is wedge-shaped.

10. The welding assembly apparatus for automatic separation of multi-layer diffusion welding according to any one of claims 1-9, characterized in that, The transverse coordinate values ​​of the center point of the impact block (102) on each layer of the welding fixture (1) are different, and the transverse coordinate values ​​increase or decrease sequentially from the upper layer to the lower layer.

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