Friction welding and cutting in-situ composite vertical machining apparatus

Abstract

This utility model discloses a vertical composite machining equipment for in-situ friction welding and cutting, including a frame, a vertical main support, a Z-axis slide plate, a spindle box, a tool magazine, an X-axis sliding seat, a Y-axis sliding seat, and a machining seat. The machining seat includes a base, a rotating seat, and a positioning table, and the machining seat is fixed on the X-axis sliding seat. The positioning table is rotatably connected to the rotating seat by a vertical rotation axis, and the rotating seat is rotatably connected to the base by a horizontal rotation axis to adjust the angle between the friction welding head and the workpiece on the positioning table. The positioning table is equipped with a copper plate for online cleaning after welding. The equipment can realize in-situ friction welding and cutting machining, and in-situ welding cleaning, and has manufacturing advantages such as reducing process flow, making the production process more compact, reducing the production line footprint, and making the process layout more flexible.

Description

Technical Field

[0001] This utility model relates to the technical field of machining equipment, and in particular to a vertical machining equipment for friction welding and cutting in situ. Background Technology

[0002] Friction welding technology is indispensable in the manufacturing of battery cooling plates. These cooling plates are typically constructed from multiple layers of aluminum or copper alloy sheets and must simultaneously meet three stringent requirements: absolute sealing to prevent coolant leakage and subsequent battery short circuits; precise flow channel structure; and efficient thermal management performance. Rotary friction welding, due to its solid-state welding characteristics, extremely small heat-affected zone, and compatibility with dissimilar metals, has become the industry's preferred process. However, the main body of the cooling plate is formed by aluminum die casting, which introduces surface defects such as burrs and requires a release allowance, necessitating further machining.

[0003] However, the current industry generally adopts a separate operation mode of "friction welding machine + machining center," using machining centers for machining and dedicated friction welding equipment for processing respectively. This exposes three major pain points. First, the workpiece turnover efficiency is extremely low: the cooling plate needs to go through a lengthy process of "clamping and welding → unloading → transfer → secondary clamping at the machining center," and delays in the transfer link directly lead to production capacity bottlenecks. Second, repeated clamping causes serious quality risks. During the transfer process, the microchannels of the cooling plate are easily scratched by bumps and knocks, and the residual welding stress is released during the transfer, resulting in excessive deformation after processing, and serious lack of equipment synergy.

[0004] Patent document CN102501074A discloses a cutting-friction stir welding combined processing equipment and its manufacturing method. A cutting system is set at the lower part of the stirring pin, which constitutes a cutting-friction stir welding combined processing equipment. It is a combined or composite processing device and method that allows milling or cutting processing and friction stir welding processing to be carried out simultaneously.

[0005] Patent document CN220698821U discloses a friction stir welding and milling composite machining device, including an electric spindle and a workpiece to be machined. The electric spindle includes an electric spindle and a rotating mandrel. A torque measuring component is installed on the lower end face of the electric spindle. A tool holder is installed on the lower end face of the rotating shaft of the electric spindle. A friction stir welding tool or a milling tool is installed in the center hole of the lower end face of the tool holder. The device integrates friction stir welding and milling machining into one unit and can realize automatic force / torque control for friction stir welding and milling.

[0006] While these devices offer insights into combining cutting and friction stir welding, their descriptions of specific equipment setups are rather crude, making them impractical for actual production. In particular, the friction stir welding head needs to be adjusted according to the working conditions during the friction stir welding process, making it difficult for the aforementioned devices to achieve flexible switching. Utility Model Content

[0007] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a vertical composite machining equipment for friction welding and cutting in situ, which can realize friction welding and cutting in situ machining.

[0008] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a vertical composite machining equipment for friction welding and cutting, including a frame, a vertical main support, a Z-axis slide plate, a spindle box, a tool magazine, an X-axis sliding seat, a Y-axis sliding seat, and a machining seat;

[0009] The vertical main support is vertically mounted on the frame, the spindle box is located on the Z-axis slide plate, the vertical main support supports the Z-axis slide plate, and the Z-axis slide plate moves up and down along the vertical main support; the Y-axis sliding seat is slidably mounted on the frame, and the X-axis sliding seat is slidably mounted on the Y-axis sliding seat;

[0010] The tool magazine is mounted on the spindle box and includes a friction welding head and cutting tools. The machining base includes a base, a rotating base, and a positioning table. The machining base is fixed to the X-axis sliding base. The positioning table is rotatably connected to the rotating base via a vertical rotation axis, and the rotating base is rotatably connected to the base via a horizontal rotation axis to adjust the angle between the friction welding head and the workpiece on the positioning table. The positioning table is equipped with a copper plate for online cleaning after welding.

[0011] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the positioning table includes a positioning part and a clamping assembly.

[0012] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the copper plate is set on the plate frame, the plate clamp includes vertical support legs on both sides, the plate clamp is provided with a slot, the copper plate is inserted into the slot to realize installation and can be pulled out as a whole to replace the copper plate.

[0013] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the positioning part includes a positioning support frame and a first telescopic backrest and a second telescopic backrest located on both sides of the positioning support frame.

[0014] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the rear side of the positioning support frame is provided with a movable support component, which moves back and forth.

[0015] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the clamping assembly includes a rotation locking module located on both sides of the positioning support frame, and the first side telescopic backrest and the second side telescopic backrest are located on the rear side of the rotation locking module.

[0016] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the base includes two supporting walls, the rotating seat is rotatably connected to the front end of the supporting walls, and the two supporting walls and the rotating seat form a U-shaped structure.

[0017] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the rotation locking module includes a base and a rotation locking member. The base includes a connecting protrusion. The rotation locking member includes a rotation connecting part and two mutually spaced pressing arms. The rotation connecting part includes a connecting recess. The connecting protrusion is inserted into the connecting recess. The rotating shaft passes through the rotation locking member and the connecting protrusion and connects. The free end of the pressing arm is provided with an action part. The action part is provided with a pressing notch.

[0018] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the base of the rotating locking module on both sides is provided with a positioning column that can be raised and lowered. After the positioning column extends, it is used to abut against the side of the workpiece to form a first telescopic backing and a second telescopic backing.

[0019] The preferred technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the copper plate is set on the plate frame located on the front side of the positioning support frame.

[0020] Compared with the prior art, the advantages of this utility model are: the equipment can realize friction welding and in-situ cutting processing, and in-situ cleaning welding, which has manufacturing advantages such as reducing process flow, making the production process more compact, reducing the production line floor area, and making the process layout more flexible. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 A schematic diagram of a vertical machining equipment combining friction welding and in-situ cutting;

[0023] Figure 2 A schematic diagram of the machining base and workpiece of a vertical machining equipment for in-situ combined friction welding and cutting;

[0024] Figure 3 A schematic diagram showing the operating state of the machining base of a vertical machining equipment for in-situ friction welding and cutting.

[0025] Figure 4 A schematic diagram of the platform body of a vertical machining equipment for in-situ friction welding and cutting.

[0026] Figure 5 A schematic diagram of the machining stand (excluding the table body) for a vertical machining equipment for in-situ combined friction welding and cutting.

[0027] Figure 6 A schematic diagram of a workpiece processed by a vertical machining center that combines friction welding and cutting in situ.

[0028] Figure label:

[0029] Frame 1; Vertical main support 2; Z-axis slide plate 3; Spindle box 4; Tool magazine 5; X-axis sliding seat 6; Y-axis sliding seat 7; Machining seat 8; Friction welding head 100; Base 81; Rotary seat 82; Machining table 83; Workpiece 9 including housing 91; Left cover plate 92; Right cover plate 93. Positioning part 31; Clamping assembly 32; Positioning support frame 30; Second side backrest 40; Movable support assembly 20; Support body 21; Backrest body 22; Copper plate 10; Plate frame 11; Vertical bracket 110; Rotary locking module 50; Base 51; Rotary locking part 52; Rotary connecting part 521; Pressing arm 522; Action part 523; Pressing notch 60; Table base 831; Table body 832; Mounting hole 90; Chassis 70; Support wall 811. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined or explained in subsequent figures. For clarity of the structure, the proportions of the components in the figures are not actual proportions.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," 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 utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0033] like Figure 1As shown, this embodiment provides a vertical composite machining equipment for friction welding and cutting in situ, including a frame 1, a vertical main support 2, a Z-axis slide plate 3, a spindle box 4, a tool magazine 5, an X-axis sliding seat 6, a Y-axis sliding seat 7, and a machining seat 8. The vertical main support 2 is vertically mounted on the frame 1, and the spindle box 4 is located on the Z-axis slide plate 3. The vertical main support 2 supports the Z-axis slide plate 3, and the Z-axis slide plate 3 moves up and down along the vertical main support 2. The Y-axis sliding seat 7 is slidably mounted on the frame 1, and the X-axis sliding seat 6 is slidably mounted on the Y-axis sliding seat 7. The tool magazine 5 is located on the spindle box 4, and the tool magazine 5 simultaneously stores the friction welding head 100 and cutting tools, realizing seamless switching between welding and machining.

[0034] like Figure 2-3 As shown, the machining base 8 includes a base 81, a rotating base 82, and a machining table 83, and is fixed to the X-axis sliding base 6. Thus, the machining base 8 can switch positions on the horizontal plane of the frame 1, and either the friction welding head 100 or the cutting tool can be selected to complete friction welding or machining operations via Z-axis feed. In this embodiment, the machining table 83 is rotatably connected to the rotating base 82 via a vertical rotation axis, and the rotating base 82 is rotatably connected to the base 81 via a horizontal rotation axis. This adjusts the angle between the friction welding head 100 and the workpiece 9 on the machining table 83, thereby adjusting the posture of the workpiece 9. This ensures that the friction welding head and the welding trajectory form a reasonable machining angle, and also meets the requirements for machining complex surfaces in multi-dimensional space.

[0035] For example, processing such as Figure 6 The workpiece 9 shown includes a housing 91, a left cover plate 92, and a right cover plate 93. In a conventional welding machine tool + machining center processing method, the steps include clamping the workpiece 9 on the welding machine tool, first friction welding the left cover plate 92, then removing the welded intermediate product from the welding machine tool and clamping it in the machining center to machine the left weld surface, then transferring the machined intermediate product from the machining center to the welding machine tool for clamping, friction welding the right cover plate 93, and finally transferring the welded right cover plate 93 from the welding machine tool to the machining center for clamping and machining the right weld surface. However, the equipment used in this embodiment allows processing to be performed on the same machine. First, the housing 91 is clamped and the left cover plate 92 is friction welded, then the tool is changed to complete the machining of the left weld surface. Then, the workpiece 9 is flipped over, the right cover plate 93 is friction welded, and the tool is changed again to complete the machining of the right weld surface. By adopting this friction welding and cutting in-situ composite vertical machining equipment and corresponding process scheme, the original 4 machines and 4 transfers have been reduced to 2 machines and 2 transfers. This has manufacturing advantages such as reducing process transfers, making the production process more compact, reducing the production line footprint, and making the process layout more flexible.

[0036] like Figure 2-4As shown, the machining table 83 includes a positioning part 31 and a clamping assembly 32. The positioning part 31 provides a reference surface for the workpiece 9, reducing repeated clamping position errors. The clamping assembly 32 can provide sufficient clamping force under both welding upsetting force and cutting force conditions to prevent displacement.

[0037] Most importantly, the processing table 83 is equipped with a copper plate 10 for online post-weld cleaning. The copper plate 10 is larger than the diameter of the friction welding head. In this embodiment, industrial copper with a copper content greater than 99% and a tensile strength of 85±2HV is used. The friction welding head in this embodiment is coated with a hard alloy coating with a hardness of HRC63-HRC68. After welding, the friction welding head only needs to be moved horizontally above the copper plate 10 to scrape away spatter, reducing downtime for cleaning. Simultaneously, the high thermal conductivity of copper allows it to quickly dissipate heat from the welding slag, preventing secondary adhesion.

[0038] like Figure 2-4 As shown, the positioning part 31 includes a positioning support frame 30 and a first side support and a second side support 40 located on both sides of the positioning support frame 30. The surface of the positioning support frame 30 is a rigid conforming structure adapted to the workpiece 9, which is used to support the workpiece 9 and resist the reaction forces of welding and machining. The first side support and the second side support 40 automatically laterally position the workpiece 9, enhance the movement of the workpiece 9 during processing, and improve processing accuracy.

[0039] like Figure 2-4 As shown, a movable support assembly 20 is provided on the rear side of the positioning support frame 30, which can move back and forth. It includes a support body 21 extending into the workpiece 9 and a backing body 22 located on the rear side. The support body 21 presses against the thin-walled back of the workpiece 9, suppressing buckling of the thin-walled part caused by welding pressure. The backing body 22 acts as a rear support, further improving the positioning accuracy of the workpiece 9 during the welding process. After welding, it can retract backward to avoid tool interference.

[0040] like Figure 2-4 As shown, the copper plate 10 is mounted on the plate holder 11 located in front of the positioning support frame 30. This minimizes the overlap with the lateral travel of the welding head, reducing idle travel. The plate holder 11 includes vertical support legs 110 on both sides and has slots. The copper plate 10 is inserted into these slots for installation and can be removed entirely for replacement, resulting in short maintenance times and ensuring continuous production. Simultaneously, the vertical support legs 110 suspend the copper plate 10, creating a channel underneath for easy removal of contaminants.

[0041] like Figure 2-4As shown, the clamping assembly 32 includes rotating locking modules 50 located on both sides of the positioning support frame 30. The base and the rotating locking modules 50 form a closed force chain, transmitting the welding load to the base 81 and reducing the vibration amplitude. Further, the rotating locking module 50 includes a base 51 and a rotating locking member 52. The base 51 includes a connecting protrusion, and the rotating locking member 52 includes a rotating connecting part 521 and two spaced-apart pressing arms 522. The rotating connecting part 521 includes a connecting recess, and the connecting protrusion is inserted into the connecting recess. A rotating shaft passes through the rotating locking member 52 and the connecting protrusion in sequence and rotatably connects the two. The free end of the pressing arm 522 is provided with an action part 523, and the action part 523 is provided with a pressing notch 60. The clamping force at the two points is uniform, and the pressing notch can accommodate the edge of the workpiece 9 to avoid damaging the surface. At the same time, the upper side of the pressing notch forms a downward pressing point, and the side of the pressing notch forms a lateral abutment point, thereby effectively clamping the workpiece 9 in both the vertical and horizontal directions.

[0042] like Figure 2-4 As shown, the base 51 of both locking modules is equipped with vertically movable positioning columns. When extended, these positioning columns abut against the sides of the workpiece 9 to form a first and second side support 40. Preferably, when raised, the positioning columns are higher than the clamping surface, also serving as coarse positioning blocks; when lowered, they are lower than the clamping surface, not interfering with the cutting path. The lifting and lowering positioning columns are driven by the same drive mechanism, ensuring synchronized lifting and lowering to guarantee that both side supports simultaneously contact the sides of the workpiece 9, preventing tilting.

[0043] like Figure 4-5 As shown, the processing table 83 includes a base 831 and a body 832. The base 831 is rotatably connected to the rotary table 82, and the body 832 is detachably connected to the base 831. The base 831 has a mounting hole 90 in the center. The body 832 includes a chassis 70, which is inserted into the base 831 through the mounting hole 90 and its position is fixed after insertion. The positioning part 31, the clamping assembly 32, and the copper plate 10 are all located on the chassis 70.

[0044] like Figure 5 As shown, the base 81 includes two support walls 811, and the rotating seat 82 is rotatably connected to the front end of the support walls 811. The two support walls 811 and the rotating seat 82 form a U-shaped structure. This structure is beneficial to improving the overall torsional stiffness and can also play a certain role in avoiding the spindle box 4.

[0045] This invention introduces the friction welding and cutting in-situ composite vertical machining equipment provided by this utility model. Specific examples are used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vertical machining equipment combining friction welding and in-situ cutting, characterized in that: It includes a frame, a vertical main support, a Z-axis slide plate, a spindle box, a tool magazine, an X-axis slide, a Y-axis slide, and a machining base; The vertical main support is vertically mounted on the frame, the spindle box is located on the Z-axis slide plate, the vertical main support supports the Z-axis slide plate, and the Z-axis slide plate moves up and down along the vertical main support; the Y-axis sliding seat is slidably mounted on the frame, and the X-axis sliding seat is slidably mounted on the Y-axis sliding seat; The tool magazine is mounted on the spindle box and includes a friction welding head and cutting tools. The machining base includes a base, a rotating base, and a positioning table. The machining base is fixed to the X-axis sliding base. The positioning table is rotatably connected to the rotating base via a vertical rotation axis, and the rotating base is rotatably connected to the base via a horizontal rotation axis to adjust the angle between the friction welding head and the workpiece on the positioning table. The positioning table is equipped with a copper plate for online cleaning after welding.

2. The friction welding and in-situ cutting composite vertical machining equipment according to claim 1, characterized in that: The positioning stage includes a positioning part and a clamping assembly.

3. The friction welding and in-situ cutting composite vertical machining equipment according to claim 2, characterized in that: The copper plate is mounted on a plate frame, which includes vertical support legs on both sides and slots. The copper plate is inserted into the slots for installation and can be removed as a whole for replacement.

4. The friction welding and in-situ cutting combined vertical machining equipment according to claim 3, characterized in that: The positioning unit includes a positioning support frame and a first telescopic backrest and a second telescopic backrest located on both sides of the positioning support frame.

5. The friction welding and in-situ cutting combined vertical machining equipment according to claim 4, characterized in that: The positioning support frame is provided with a movable support component on its rear side, which can move back and forth.

6. The friction welding and in-situ cutting composite vertical machining equipment according to claim 5, characterized in that: The clamping assembly includes rotating locking modules located on both sides of the positioning support frame, with the first and second side telescopic backrests located on the rear side of the rotating locking modules.

7. The friction welding and in-situ cutting composite vertical machining equipment according to claim 1, characterized in that: The base includes two support walls, and the rotating seat is rotatably connected to the front end of the support walls. The two support walls and the rotating seat form a U-shaped structure.

8. The friction welding and in-situ cutting composite vertical machining equipment according to claim 6, characterized in that: The rotating locking module includes a base and a rotating locking member. The base includes a connecting protrusion. The rotating locking member includes a rotating connecting part and two spaced-apart pressing arms. The rotating connecting part includes a connecting recess. The connecting protrusion is inserted into the connecting recess. The rotating shaft passes through the rotating locking member and the connecting protrusion. The free end of the pressing arm is provided with an action part. The action part is provided with a pressing notch.

9. The friction welding and in-situ cutting combined vertical machining equipment according to claim 7, characterized in that: Both sides of the rotating locking module are equipped with positioning columns that can be raised and lowered. After the positioning columns extend, they are used to abut against the side of the workpiece to form a first side telescopic backing and a second side telescopic backing.

10. The friction welding and in-situ cutting combined vertical machining equipment according to claim 4, characterized in that: The copper plate is mounted on a plate frame located on the front side of the positioning support frame.

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