A positioning mechanism, double-station automatic exchange workbench and three-axis machine tool integrated electric arc additive manufacturing equipment

Abstract

The utility model discloses a positioning mechanism, double position automatic exchange workstation and three -axis machine tool integrated formula electric arc additive manufacturing equipment belongs to metal additive manufacturing technical field. A kind of positioning mechanism, comprising: bottom plate (31) is provided with zero point positioning mechanism (25), the circumferential of zero point positioning mechanism (25) is evenly distributed with several guide posts (32), the upper surface of zero point positioning mechanism (25) is connected with the compression plate (33) for forming interlocking structure with fixture base plate;The lower surface of fixture base plate is connected with two auxiliary plates (34), the lower surface of auxiliary plate (34) is provided with pin sleeve, the upper surface of bottom plate (31) is provided with the pin (35) for with pin sleeve adaptation. The utility model further discloses double position automatic exchange workstation and three -axis machine tool integrated formula electric arc additive manufacturing equipment containing above-mentioned positioning mechanism. The utility model realizes the deep integration of additive system and three -axis machine tool, solves the problem of low precision of external device, debugging difficulty.

Description

Technical Field

[0001] This utility model relates to the field of metal additive manufacturing technology, specifically to a positioning mechanism, a dual-station automatic exchange worktable, and an integrated manufacturing equipment that deeply integrates an electric arc additive manufacturing system into a three-axis machine tool, suitable for rapid prototyping and repair of flat and simple curved metal components. Background Technology

[0002] Traditional three-axis machine tools are mainly used for subtractive machining (such as milling and drilling). If additive manufacturing is required, an external independent welding power supply, wire feeder, and control system are needed, which presents the following problems:

[0003] The equipment is distributed: additive components are separated from machine tools, wiring and air circuits are complex, and installation and commissioning are time-consuming;

[0004] Accuracy loss: Difficulty in calibrating the coordinate system of external equipment and machine tools leads to deviations in the accuracy of the additive manufacturing path;

[0005] Functional fragmentation: lack of real-time monitoring and collaborative control;

[0006] Therefore, there is an urgent need for a positioning mechanism, a dual-station automatic exchange worktable, and equipment that deeply integrates the electric arc additive manufacturing system with a three-axis machine tool to improve machining accuracy and efficiency. Utility Model Content

[0007] The purpose of this invention is to provide a positioning mechanism that enables efficient positioning, locking, and unlocking of the clamping substrate.

[0008] Furthermore, the purpose of this utility model is to provide a dual-station automatic exchange worktable, thereby realizing continuous additive manufacturing, saving time, and improving efficiency.

[0009] Furthermore, the purpose of this utility model is to provide a three-axis machine tool integrated electric arc additive manufacturing equipment, which achieves deep integration of the additive system and the three-axis machine tool through integrated design, and solves the problems of low precision and difficult debugging caused by external equipment.

[0010] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0011] A positioning mechanism includes: a zero-point positioning mechanism disposed in the middle of the upper surface of a base plate; a plurality of guide posts evenly distributed around the zero-point positioning mechanism; a clamping plate connected to the upper surface of the zero-point positioning mechanism for forming an interlocking structure with a fixture base plate; a guide groove disposed on the clamping plate for matching the guide posts; the zero-point positioning mechanism is a telescopic rod; auxiliary plates symmetrically disposed on the lower surface of the fixture base plate; a concave pin sleeve disposed on the lower surface of the auxiliary plates; and a convex pin disposed on the upper surface of the base plate for matching the pin sleeve. The pin is inserted into the pin sleeve to achieve positioning and locking, and the pin is removed from the pin sleeve to achieve unlocking of the fixture base plate.

[0012] Preferably, the side of the clamping plate is an inverted L-shaped step; the opposite sides of the symmetrically arranged auxiliary plates are provided with positive L-shaped steps that match the inverted L-shaped steps of the clamping plate, thereby forming an interlocking structure.

[0013] Preferably, the telescopic rod includes a pneumatic telescopic rod or an electric telescopic rod.

[0014] More preferably, the base plate is provided with vent holes, and the base plate is an air plate, with forward and reverse ventilation used to control the extension and retraction of the pneumatic telescopic rod.

[0015] A dual-station automatic exchange worktable for a positioning mechanism includes: a support frame, on which a first cylinder and a second cylinder are horizontally arranged in a left-right direction; a left movable stage moves left and right under the drive of the first cylinder, and a right movable stage moves left and right under the drive of the second cylinder; a first clamping base plate push-pull block is provided on the upper surface of the left movable stage, the first clamping base plate push-pull block is mounted on a first rodless cylinder, and a first base plate slide rail is also provided on the upper surface of the left movable stage; the first rodless cylinder is connected to the first clamping base plate, and the first clamping base plate slides back and forth on the first base plate slide rail; the positioning mechanism described above is provided on the work platform and the first clamping base plate.

[0016] The upper surface of the right movable platform is provided with a second clamping base plate push-pull block, which is mounted on the second rodless cylinder. The upper surface of the right movable platform is also provided with a second base plate slide rail. The second rodless cylinder is connected to the second clamping base plate, and the second clamping base plate slides back and forth on the second base plate slide rail. The work platform and the second clamping base plate are provided with the positioning mechanism described above.

[0017] A three-axis machine tool integrated electric arc additive manufacturing equipment includes: a three-axis machine tool, an additive head mechanism, a balancer assembly, a process cabinet, and a dual-station automatic exchange worktable as described above;

[0018] The spindle and spindle casting of the three-axis machine tool are removed, and the additive head mechanism is installed on the Z-axis of the three-axis machine tool. The additive head mechanism is connected to the gun cable, and the gun cable is connected to the process cabinet through the balance hanger assembly. The dual-station automatic exchange table is located below the additive head mechanism.

[0019] The process cabinet is a modular cabinet that integrates a welding machine, wire feeder, industrial control computer, and PLC;

[0020] The cabinet of the process cabinet is connected to the three-axis machine tool and includes power supply, air circuit, network cable and USB interface;

[0021] The industrial computer, welding machine, three-axis machine tool, and molten pool camera are all connected to the PLC for communication.

[0022] Communication connection between the industrial computer and the CNC system of the three-axis machine tool.

[0023] Preferably, the additive head mechanism includes a slider connecting plate, an intermediate connecting block, a welding torch connecting assembly, a flip cover, a fume extraction and dust removal assembly, a molten pool camera, and a welding torch;

[0024] The rear side of the slider connecting plate is installed on the Z-axis slider of the three-axis machine tool. The front side of the slider connecting plate is connected to the intermediate connecting block. The welding gun connecting assembly is installed on the intermediate connecting block. The welding gun is installed inside the welding gun connecting assembly. The axis of the welding gun is coaxial with the spindle of the three-axis machine tool. A fume extraction and dust removal assembly is set around the welding gun. The fume extraction and dust removal assembly is connected to the built-in dust removal box of the process cabinet through a corrugated pipe.

[0025] A flip cover that facilitates wire threading and maintenance of the welding torch is located on the welding torch connection assembly;

[0026] A molten pool camera is installed on the lower surface of the welding torch connection assembly, and the cable of the molten pool camera is connected to the industrial control computer.

[0027] Preferably, the frame rate of the molten pool camera is ≥100fps.

[0028] Preferably, the welding torch connection assembly includes a torch head locking lower shell, a stainless steel corrugated pipe, and a fume extraction and dust removal assembly connected sequentially from bottom to top. The torch head locking lower shell is used to fix the torch head. A fume extraction port is provided at the bottom of the torch head locking lower shell. A gap is provided between the stainless steel corrugated pipe and the welding torch. A flue is connected between the torch head locking lower shell, the stainless steel corrugated pipe, and the fume extraction and dust removal assembly. The built-in dust removal box of the process cabinet is connected to the fume extraction motor.

[0029] Preferably, the balance hoist assembly hoists the welding torch cable, the molten pool camera cable, and the corrugated pipe of the fume extraction and dust removal assembly onto the process cabinet.

[0030] A three-axis machine tool integrated electric arc additive manufacturing equipment includes:

[0031] 1. Three-axis machine tool body

[0032] (1) Actuator: X / Y / Z three-axis linear guide, stroke range ≥500×400×330mm, positioning accuracy ±0.02mm;

[0033] (2) Spindle system: Remove the spindle and install the additive head mechanism.

[0034] 2. Integrated Additive Manufacturing System

[0035] (1) Additive head mechanism (core component):

[0036] Welding torch: Employs CMT / pulse welding technology, with its axis coaxial with the three-axis machine tool spindle to ensure additive manufacturing path accuracy;

[0037] Molten pool monitoring module: integrates a high-speed camera (frame rate ≥100fps) to acquire molten pool images in real time;

[0038] Dust removal device: A smoke inlet is set around the welding torch and connected to the dust collection box inside the process cabinet through a wear-resistant flexible hose;

[0039] (2) Craft cabinet:

[0040] Modular cabinet integrated welding machine (TPS4000 CMT ADV), wire feeder (supports 0.8-1.6mm welding wire), industrial computer (running IungoPNT software) and Siemens PLC;

[0041] The cabinet connects to the three-axis machine tool via a standardized quick-connect interface, which includes power supply, air circuit, network cable and USB interface, enabling plug-and-play functionality.

[0042] 3. Collaborative Control System

[0043] The industrial computer communicates bidirectionally with the three-axis machine tool CNC system (Siemens / FANUC) to synchronize the additive manufacturing path and the motion coordinates of the three-axis machine tool;

[0044] The PLC monitors parameters such as wire feeding speed and welding current in real time, and triggers an emergency stop of the three-axis machine tool when abnormalities occur.

[0045] 4. Optional dual-station adapter (extended functionality)

[0046] The worktable can be equipped with a dual-station automatic exchange worktable, which can realize parallel processing and loading / unloading through cylinder drive.

[0047] Compared with the prior art, the beneficial effects of this utility model are:

[0048] 1. High-precision integration: The additive head is coaxial with the machine tool spindle, achieving a path accuracy of 0.02mm and a forming accuracy of ±2mm, avoiding calibration errors from external equipment;

[0049] 2. Rapid deployment: The modular process cabinet connects to three-axis machine tools via quick-connect interfaces, reducing installation time by 70% and supporting rapid switching between multiple machine tools;

[0050] 3. Collaborative control: The industrial computer and the three-axis machine tool CNC system are synchronized in real time to achieve precise coordination between the additive manufacturing process and the movement of the three-axis machine tool, supporting complex trajectory forming. Attached Figure Description

[0051] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0052] Figure 1This is a schematic diagram of the structure of this utility model;

[0053] Figure 2 This is a schematic diagram of the additive head mechanism in this utility model;

[0054] Figure 3 This is a schematic diagram of the flue structure in this utility model. Figure 1 ;

[0055] Figure 4 This is a schematic diagram of the flue structure in this utility model. Figure 2 ;

[0056] Figure 5 This is a schematic diagram of the structure of the dual-station automatic exchange workbench in this utility model;

[0057] Figure 6 This is a schematic diagram of the structure of the clamp base plate in this utility model;

[0058] Figure 7 This is a schematic diagram of the zero-point positioning mechanism in this utility model;

[0059] Figure 8 for Figure 6 A three-dimensional image. Detailed Implementation

[0060] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0061] Example 1

[0062] like Figure 1 As shown, a three-axis machine tool integrated electric arc additive manufacturing equipment includes a three-axis machine tool 3, an additive head mechanism 4, a balancing crane assembly 2, a process cabinet 1, and a dual-station automatic exchange worktable 5. The spindle and spindle casting of the three-axis machine tool 3 are removed, the additive head mechanism 4 is installed on the Z-axis, and then the gun cable is connected to the process cabinet 1 via the balancing crane assembly 2.

[0063] like Figure 2 As shown, the additive manufacturing head mechanism 4 includes a slider connecting plate 12, an intermediate connecting block 9, a welding torch connecting assembly 11, a flip cover 10, a fume extraction and dust removal assembly 7, a molten pool camera 8, a welding torch 6, etc. The rear side of the slider connecting plate 12 is mounted on the Z-axis slider of the three-axis machine tool 3. The front side of the slider connecting plate 12 is connected to the intermediate connecting block 9. The welding torch connecting assembly 11 is mounted on the intermediate connecting block 9. The welding torch 6 is installed inside the welding torch connecting assembly 11 to ensure that the axis of the welding torch 6 is coaxial with the spindle of the three-axis machine tool. The fume extraction and dust removal assembly 7 is arranged around the welding torch 6. The fume extraction and dust removal assembly 7 is connected to the built-in dust collection box of the process cabinet 1 through a wear-resistant hose.

[0064] like Figure 4As shown, the wear-resistant hose is a black corrugated tube 13 (nylon material). The corrugated tube 13 is inserted into the workpiece 15 and connected to the smoke extraction and dust removal assembly 7. The cover plate 14 surrounding the corrugated tube 13 secures the corrugated tube 13 to the workpiece 15.

[0065] The flip cover 10 can be opened for maintenance of the welding torch 6. The flip cover 10 is located on the welding torch connecting assembly 11. After the flip cover 10 is opened, it is convenient to thread the welding torch 6.

[0066] A weld pool camera 8 is provided on the lower surface of the welding torch connection assembly 11, and the frame rate of the weld pool camera 8 is...

[0067] ≥100fps, used for real-time acquisition of molten pool images.

[0068] like Figure 4 As shown, the welding torch connecting assembly 11 includes a torch head locking lower housing 17, a stainless steel corrugated pipe 16, and a fume extraction and dust removal assembly 7 connected sequentially from bottom to top. The torch head locking lower housing 17 is used to fix the torch head of the welding torch 6. A fume extraction port is provided at the bottom end of the torch head locking lower housing 17. A gap is provided between the stainless steel corrugated pipe 16 and the welding torch 6, such as... Figure 3 As shown, a flue connects the gun head locking lower shell 17, the stainless steel corrugated pipe 16, and the smoke extraction and dust removal assembly 7. The built-in dust removal box of the process cabinet 1 is connected to the smoke extraction motor. When the smoke extraction motor is started, dust removal is achieved in the electric arc additive manufacturing process.

[0069] In this embodiment, the process cabinet 1 is a modular cabinet that integrates a welding machine (TPS4000 CMT ADV), a wire feeder (supporting 0.8-1.6mm welding wire), an industrial control computer (running IungoPNT software), and a Siemens PLC.

[0070] The cabinet connects to the three-axis machine tool via a standardized quick-connect interface (such as an aviation quick-connect plug), which includes power supply, air circuit, network cable and USB interface, enabling plug-and-play functionality.

[0071] Process cabinet 1 is communicatively connected to three-axis machine tool 3. The wire feeder is the welding torch 6. The molten pool image captured by the molten pool camera 8 is transmitted to the industrial control computer, which outputs and displays the image, allowing personnel to observe the molten pool image in real time. The industrial control computer, welding machine, three-axis machine tool 3, and molten pool camera 8 are all communicatively connected to a Siemens PLC. All electrical components in this embodiment are powered by a power supply.

[0072] In this embodiment, the balancing hoist assembly 2 is used to hoist the welding torch 6's cable and the molten pool camera 8's cable to the process cabinet 1. The welding torch 6's cable is connected to the welding machine, and the molten pool camera 8's cable is connected to the industrial control computer. The balancing hoist assembly 2 is also used to hoist the corrugated pipe 13 of the fume extraction and dust removal assembly 7 to the built-in dust collection box of the process cabinet 1.

[0073] In this embodiment, the industrial computer communicates bidirectionally with the three-axis machine tool CNC system (Siemens / FANUC) to synchronize the additive manufacturing path and the motion coordinates of the three-axis machine tool.

[0074] The PLC monitors parameters such as wire feeding speed and welding current in real time, and triggers an emergency stop of the three-axis machine tool when abnormalities occur.

[0075] This structure is mainly designed to quickly convert old machine tools into additive manufacturing equipment in some 3C industries. Currently, some 3C industries, such as laptop motherboards, mainly rely on thick blanks to process the motherboard and studs on the motherboard, which wastes a lot of materials. By using the modified three-axis additive manufacturing equipment, studs can be directly added to thin motherboards, which can greatly reduce material waste.

[0076] Example 2

[0077] The only difference between this embodiment and Embodiment 1 is that:

[0078] The dual-station automatic exchange workbench 5 in this embodiment has the following structure:

[0079] The dual-station automatic exchange worktable 5 includes a support frame 19. A first cylinder 20 and a second cylinder 30 are horizontally arranged on the frame 19 in a left-right direction. The left movable stage 21 moves left and right under the drive of the first cylinder 20, and the right movable stage 29 moves left and right under the drive of the second cylinder 30. A first clamping base plate push-pull block 22 is provided on the upper surface of the left movable stage 21, and the first clamping base plate push-pull block 22 is mounted on a first rodless cylinder 23. A first base plate slide rail 26 is also provided on the upper surface of the left movable stage 21. The first rodless cylinder 23 is connected to the first clamping base plate 24, and the first clamping base plate 24 can slide back and forth on the first base plate slide rail 26. The upper surface of the three-axis machine tool 3 below the welding torch 6 is a three-axis working platform. A zero-point positioning mechanism 25 is provided on the three-axis working platform, and a first positioning element adapted to the zero-point positioning mechanism 25 is provided on the first clamping base plate 24.

[0080] Specifically, such as Figures 6-8As shown, a base plate 31 is locked onto the three-axis work platform. A cylindrical zero-point positioning mechanism 25 is provided in the middle of the upper surface of the base plate 31. Several guide posts 32 are evenly distributed around the zero-point positioning mechanism 25. A pressure plate 33 is provided on the upper surface of the zero-point positioning mechanism 25. The side of the pressure plate 33 is an inverted L-shaped step. Two auxiliary plates 34 (symmetrically arranged) are connected to the lower surface of the first clamping base plate 24. The opposite surfaces of the two auxiliary plates 34 are provided with positive L-shaped steps that match the inverted L-shaped steps of the pressure plate 33. This arrangement allows the first clamping base plate 24 and the pressure plate 33 to form an interlocking structure. The clamping plate 33 is provided with a guide groove for matching the guide post 32. The zero-point positioning mechanism 25 has a range of vertical movement (the zero-point positioning mechanism 25 is pneumatically telescopic; the base plate 31 is provided with a vent 36, and the base plate 31 is an air plate; forward and reverse ventilation are used to control the telescopic movement of the zero-point positioning mechanism 25). When the first clamping base plate 24 and the clamping plate 33 form an interlocking structure, forward ventilation causes the zero-point positioning mechanism 25 to descend, driving the clamping plate 33 and the first clamping base plate 24 to descend. The lower surface of the auxiliary plate 34 is provided with a pin sleeve, and the upper surface of the base plate 31 is provided with a pin 35 that matches the pin sleeve. During the descent of the first clamping base plate 24, the pin 35 inserts into the pin sleeve to achieve positioning and locking. Reverse ventilation causes the zero-point positioning mechanism 25 to rise, and the pin 35 is removed from the pin sleeve, allowing the first clamping base plate 24 to be smoothly transported out.

[0081] Similarly, a second clamping base plate push-pull block 28 is provided on the upper surface of the right moving stage 29. The second clamping base plate push-pull block 28 is mounted on the second rodless cylinder 27. A second base plate slide rail is also provided on the upper surface of the right moving stage 29. The second rodless cylinder 27 is connected to the second clamping base plate, and the second clamping base plate can slide back and forth on the second base plate slide rail. A zero-point positioning mechanism 25 is provided on the upper surface of the three-axis machine tool 3 below the welding torch 6. A second positioning element adapted to the zero-point positioning mechanism 25 is provided on the second clamping base plate.

[0082] The positioning, locking, and smooth transport structure of the second clamping base plate push-pull block 28 is the same as that of the first clamping base plate 24.

[0083] The operating logic of this embodiment is as follows: The left moving stage 21 moves from the left to the middle position, and the first clamping substrate 24 is sent onto the zero-point positioning mechanism 25 by the first rodless cylinder 23. The zero-point positioning mechanism 25 is locked, and additive manufacturing begins. After additive manufacturing is completed, the zero-point positioning mechanism 25 is unlocked, and the first rodless cylinder 23 drives the first clamping substrate 24 to exit onto the left moving stage 21. The left moving stage 21 moves to the left, and the right moving stage 29 moves from the right to the middle position. The second clamping substrate is sent onto the zero-point positioning mechanism 25 by the second rodless cylinder 27. The zero-point positioning mechanism 25 is locked, and additive manufacturing begins. After additive manufacturing is completed, the zero-point positioning mechanism 25 is unlocked, and the second rodless cylinder 27 drives the second clamping substrate to exit onto the right moving stage 29. The right moving stage 29 moves to the right, and the operation is repeated in this cycle.

[0084] The first clamping substrate 24 and the second clamping substrate are used to clamp the notebook baseboard to be added. Since clamping takes time, this embodiment can realize continuous additive manufacturing through the dual-station automatic exchange worktable 5, thereby saving time and improving efficiency.

[0085] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A positioning mechanism, characterized in that, include: A zero-point positioning mechanism (25) is provided in the middle of the upper surface of the base plate (31). Several guide posts (32) are evenly distributed around the zero-point positioning mechanism (25). A pressure plate (33) for forming an interlocking structure with the fixture base plate is connected to the upper surface of the zero-point positioning mechanism (25). A guide groove for matching the guide posts (32) is provided on the pressure plate (33). The zero-point positioning mechanism (25) is a telescopic rod. An auxiliary plate (34) is symmetrically provided on the lower surface of the fixture base plate. A concave pin sleeve is provided on the lower surface of the auxiliary plate. A protruding pin (35) for matching the pin sleeve is provided on the upper surface of the base plate (31). The pin (35) is inserted into the pin sleeve to achieve positioning and locking. The pin (35) is removed from the pin sleeve to achieve unlocking of the fixture base plate.

2. The positioning mechanism according to claim 1, characterized in that, The side of the clamping plate (33) is an inverted L-shaped step; the opposite side of the symmetrically arranged auxiliary plates (34) is provided with a positive L-shaped step that matches the inverted L-shaped step of the clamping plate (33), thus forming an interlocking structure.

3. The positioning mechanism according to claim 1, characterized in that, Telescopic poles include pneumatic telescopic poles or electric telescopic poles.

4. A positioning mechanism according to claim 3, characterized in that, The base plate (31) is provided with ventilation holes (36). The base plate is an air plate. Forward ventilation and reverse ventilation are used to control the extension and retraction of the pneumatic telescopic rod.

5. A dual-station automatic exchange worktable with a positioning mechanism, characterized in that, include: A support frame (19) is provided, on which a first cylinder (20) and a second cylinder (30) are horizontally arranged in the left and right directions. The left moving platform (21) moves left and right under the drive of the first cylinder (20), and the right moving platform (29) moves left and right under the drive of the second cylinder (30). A first clamping base plate push-pull block (22) is provided on the upper surface of the left moving platform (21). The first clamping base plate push-pull block (22) is mounted on the first rodless cylinder (23). A first base plate slide rail (26) is also provided on the upper surface of the left moving platform (21). The first rodless cylinder (23) is connected to the first clamping base plate (24). The first clamping base plate (24) slides back and forth on the first base plate slide rail (26). The work platform and the first clamping base plate (24) are provided with a positioning mechanism as described in any one of claims 1 to 4. The upper surface of the right moving stage (29) is provided with a second clamping base plate push-pull block (28), which is mounted on the second rodless cylinder (27). The upper surface of the right moving stage (29) is also provided with a second base plate slide rail. The second rodless cylinder (27) is connected to the second clamping base plate, and the second clamping base plate slides back and forth on the second base plate slide rail. The work platform and the second clamping base plate are provided with a positioning mechanism as described in any one of claims 1 to 4.

6. A three-axis machine tool integrated electric arc additive manufacturing equipment, characterized in that, include: The three-axis machine tool (3), the additive head mechanism (4), the balance crane assembly (2), the process cabinet (1), and the dual-station automatic exchange worktable (5) as described in claim 5; The spindle and spindle casting of the three-axis machine tool (3) are removed, and the additive head mechanism (4) is installed on the Z-axis of the three-axis machine tool (3). The additive head mechanism (4) is connected to the gun cable, and the gun cable is connected to the process cabinet (1) through the balance hanger assembly (2). The dual-station automatic exchange worktable (5) is located below the additive head mechanism (4). The process cabinet (1) is a modular cabinet that integrates a welding machine, wire feeder, industrial control computer and PLC; The cabinet of the process cabinet (1) is connected to the three-axis machine tool (3) and includes power supply, air circuit, network cable and USB interface; The industrial computer, welding machine, three-axis machine tool (3) and molten pool camera (8) are all connected to the PLC for communication. The industrial computer communicates with the CNC system of the three-axis machine tool (3).

7. The three-axis machine tool integrated electric arc additive manufacturing equipment according to claim 6, characterized in that, The additive head mechanism (4) includes a slider connecting plate (12), an intermediate connecting block (9), a welding torch connecting assembly (11), a flip cover (10), a fume extraction and dust removal assembly (7), a molten pool camera (8), and a welding torch (6); The rear side of the slider connecting plate (12) is installed on the Z-axis slider of the three-axis machine tool (3). The front side of the slider connecting plate (12) is connected to the intermediate connecting block (9). The intermediate connecting block (9) is equipped with the welding gun connecting assembly (11). The welding gun (6) is installed inside the welding gun connecting assembly (11). The axis of the welding gun (6) is coaxial with the spindle of the three-axis machine tool (3). The smoke extraction and dust removal assembly (7) is set around the welding gun (6). The smoke extraction and dust removal assembly (7) is connected to the built-in dust removal box of the process cabinet (1) through the bellows (13). A flip cover (10) for easy wire threading and maintenance of the welding torch (6) is located on the welding torch connecting assembly (11); A molten pool camera (8) is provided on the lower surface of the welding torch connection assembly (11), and the cable of the molten pool camera (8) is connected to the industrial control computer.

8. The three-axis machine tool integrated electric arc additive manufacturing equipment according to claim 7, characterized in that, The frame rate of the molten pool camera (8) is ≥100fps.

9. The three-axis machine tool integrated electric arc additive manufacturing equipment according to claim 7, characterized in that, The welding torch connection assembly (11) includes a torch head locking lower shell (17), a stainless steel corrugated pipe (16), and a fume extraction and dust removal assembly (7) connected sequentially from bottom to top. The torch head locking lower shell (17) is used to fix the torch head of the welding torch (6). A fume extraction port is provided at the bottom of the torch head locking lower shell (17). A gap is provided between the stainless steel corrugated pipe (16) and the welding torch (6). A flue is connected between the torch head locking lower shell (17), the stainless steel corrugated pipe (16), and the fume extraction and dust removal assembly (7). The built-in dust removal box located in the process cabinet (1) is connected to the fume extraction motor.

10. A three-axis machine tool integrated electric arc additive manufacturing equipment according to claim 7, characterized in that, The balance hoist assembly (2) hoists the welding torch cable (6), the cable of the molten pool camera (8), and the corrugated pipe (13) of the smoke extraction and dust removal assembly (7) onto the process cabinet (1).

Images