Wax mold welding device and wax mold welding method based on bonding wax injection process

Abstract

The invention discloses a wax mold welding device and method based on a bonding wax injection technology, the wax mold welding device based on the bonding wax injection technology comprises a positioning tool, an assembling and welding tool and a wax melting tool, and the positioning tool is used for fixing a main pouring gate. The assembling and welding tool comprises a first mechanical arm and an injection assembly arranged on the first mechanical arm. The wax melting tool comprises a wax barrel, a heating device, a conveying device and bonding wax located in the wax barrel, one end of the conveying device is connected with the wax barrel, the other end of the conveying device is connected with the injection assembly so as to convey the bonding wax to the injection assembly, and the heating device is installed on the wax barrel to heat the bonding wax. According to the wax mold welding device based on the bonding wax injection technology, due to the fact that the solidification speed of the bonding wax is high, the wax mold and the main pouring gate can be rapidly assembled and welded together, and the production efficiency of parts is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wax mold assembly welding, and in particular to a wax mold assembly welding device and a wax mold assembly welding method based on an injection bonding wax process. Background Art

[0002] Wax model precision casting, also known as lost wax casting or investment casting, has the following specific casting methods: first, make a model of the casting to be made with wax material, and weld the model to the main runner with the same material to make a module (when the casting is large, it can be a group of modules individually), dip refractory coating on the surface of the module, and then sprinkle refractory sand on it. After it dries and solidifies, heat the module, remove the wax from the pouring gate to form an empty shell, and roast the empty shell to make it a solid mold shell. Pour the metal liquid from the pouring gate, and after condensation, it becomes a metal casting.

[0003] However, the quality of the weld between the traditional wax mold and the main runner is easily affected by the inconsistency of the wax mold parts. It is not easy to form a rounded transition at the weld, so manual mold repair is required later. In addition, when welding the existing wax mold, an electric welding knife is required to heat and melt the two connecting surfaces of the wax mold and the main runner respectively. Due to the large heated surface area, it takes a long time for the connection to cool and solidify. It is time-consuming when welding larger parts, which affects production efficiency.

[0004] Therefore, how to improve the production efficiency of parts is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a wax mold assembly welding device and a wax mold assembly welding method based on the injection bonding wax process, so as to improve the production efficiency of parts.

[0006] The wax mold assembly welding device based on the injection bonding wax process provided by the present application includes:

[0007] A positioning tool, wherein the positioning tool is used to fix the main runner;

[0008] An assembly welding tool, the assembly welding tool comprising a first manipulator and an injection assembly disposed on the first manipulator;

[0009] The wax melting tool comprises a wax barrel, a heating device, a feeding device and adhesive wax located in the wax barrel. One end of the feeding device is connected to the wax barrel, and the other end is connected to the injection assembly to transport the adhesive wax to the injection assembly. The heating device is used to heat the wax barrel to heat the adhesive wax.

[0010] Optionally, in the wax mold welding device based on the injection bonding wax process, the injection assembly includes:

[0011] A fixed frame, the fixed frame is installed at the movable end of the first manipulator;

[0012] A support frame, the support frame is mounted on the fixed frame; the wax injection pipe of the feeding device is mounted on the support frame;

[0013] A wax injection nozzle is installed on the fixing frame, and the wax injection pipe connects the wax barrel and the wax injection nozzle.

[0014] Optionally, in the above-mentioned wax mold welding device based on the injection bonding wax process, the bottom end of the wax injection nozzle is provided with a bending portion, and the discharge port of the wax injection nozzle is arranged at the bottom end of the bending portion.

[0015] Optionally, in the above-mentioned wax mold welding device based on the injection bonding wax process, the injection assembly also includes a first telescopic cylinder, the wax injection tube is a flexible tube, the first telescopic cylinder is installed on the support frame, and the telescopic end of the first telescopic cylinder abuts against the side wall of the wax injection tube to squeeze the wax injection tube and then seal the wax injection tube.

[0016] Optionally, in the above-mentioned wax mold welding device based on the injection bonding wax process, it also includes:

[0017] The electric turntable is provided with a plurality of wax mold placement positions for placing wax molds which are evenly distributed in a circumferential direction with the rotation center of the electric turntable as the center of the circle.

[0018] Optionally, in the above-mentioned wax mold assembly welding device based on the injection bonding wax process, it also includes a fixed base plate, and the positioning tool, the assembly welding tool and the wax barrel are all installed on the fixed base plate, and the wax barrel and the assembly welding tool are located on the same side of the positioning tool.

[0019] Optionally, in the above-mentioned wax mold welding device based on the injection bonding wax process, it also includes:

[0020] A second manipulator, the second manipulator is mounted on the fixed base plate;

[0021] A clamp assembly, which is mounted on the movable end of the second manipulator and is used to clamp the wax model;

[0022] A wax model placement table is installed on the fixed base plate.

[0023] Optionally, in the above-mentioned wax mold welding device based on the injection bonding wax process, it also includes:

[0024] A panel, the panel is arranged around the outer periphery of the fixed bottom plate, and two ends of the circumferential arrangement form openings, and the positioning tool, the assembly welding tool and the wax melting tool are all located in the operating space formed by the panel;

[0025] A protective door, which is mounted on the enclosure and is used to open and close the opening;

[0026] A control console is movably mounted on the enclosure, and the control console is located outside the operating space. The positioning tool, the assembly welding tool, and the wax melting tool are all connected to the control console by signal.

[0027] Optionally, in the wax mold welding device based on the injection bonding wax process, the wax barrel is a sealed container, and the wax barrel is filled with compressed gas, so that when the wax barrel is heated, the bonding wax is transported to the injection assembly through the feeding device;

[0028] The heating device further comprises a heating element for heating the feeding device.

[0029] A wax pattern welding method is implemented by the wax pattern welding device based on the injection bonding wax process described in any one of the above, comprising the steps of:

[0030] The wax model is clamped from the wax model placement table by the clamp assembly of the second manipulator;

[0031] The wax mold is placed at the main runner position;

[0032] The injection assembly is driven by the first manipulator to move to the welding seam between the wax mold and the main runner;

[0033] heating the bonding wax by means of a heating device;

[0034] The bonding wax is injected into the wax pattern weld by the injection assembly.

[0035] In the above technical scheme, the wax mold welding device based on the injection bonding wax process provided by the present invention includes a positioning tool, a welding tool and a wax melting tool, and the positioning tool is used to fix the main runner. The welding tool includes a first manipulator and an injection assembly arranged on the first manipulator. The wax melting tool includes a wax barrel, a heating device, a feeding device and adhesive wax located in the wax barrel, one end of the feeding device is connected to the wax barrel, and the other end is connected to the injection assembly to transport the adhesive wax to the injection assembly, and the heating device is used to heat the wax barrel to heat the adhesive wax. When in use, the wax mold is placed at the main runner position, the first manipulator drives the injection assembly to move to the weld between the wax mold and the main runner, the heating device heats the adhesive wax, and the adhesive wax is transported to the injection assembly position through the feeding device, and the injection assembly injects the adhesive wax into the weld of the wax mold to weld the wax mold to the main runner.

[0036] From the above description, it can be seen that in the wax mold welding device based on the injection bonding wax process provided in the present application, since the solidification speed of the bonding wax is relatively fast, the wax mold and the main runner can be quickly welded together, thereby effectively improving the production efficiency of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a wax mold welding device based on the injection bonding wax process provided by an embodiment of the present invention;

[0039] Figure 2 A top view of a wax mold welding device based on an injection bonding wax process provided by an embodiment of the present invention;

[0040] Figure 3 for Figure 2 The schematic structural diagram of the wax mold welding device based on the injection bonding wax process along the AA direction is shown;

[0041] Figure 4 A three-dimensional structural diagram of an injection assembly provided by an embodiment of the present invention;

[0042] Figure 5 A three-dimensional structural diagram of a clamp assembly provided in an embodiment of the present invention.

[0043] in Figure 1-5 middle:

[0044] 1-fixed base plate, 2-positioning tooling, 3-first manipulator, 4-wax barrel, 5-fixed frame, 6-support frame, 7-wax injection pipe, 8-wax injection nozzle, 81-bending part, 9-first telescopic cylinder, 10-second manipulator, 11-clamp assembly, 12-wax mold placement table, 13-electric turntable, 14-enclosure, 15-protective door, 16-control console, 17-main pouring channel. DETAILED DESCRIPTION

[0045] The core of the present invention is to provide a wax mold welding device and a wax mold welding method based on the injection bonding wax process to improve the production efficiency of parts.

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation modes.

[0047] Please refer to Figures 1 to 5 .

[0048] In a specific embodiment, the wax mold assembly welding device based on the injection bonding wax process provided by the specific embodiment of the present invention includes a positioning tool 2, an assembly welding tool and a wax melting tool, and the positioning tool 2 is used to fix the main runner 17. The assembly welding tool includes a first manipulator 3 and an injection assembly arranged on the first manipulator 3.

[0049] The wax melting tool comprises a wax barrel 4, a heating device, a feeding device and adhesive wax in the wax barrel 4. The wax barrel 4 is arranged on the side of the first manipulator 3. One end of the feeding device is connected and the other end is connected to the injection assembly to transport the adhesive wax to the injection assembly. The heating device is used to heat the wax barrel 4 to heat the adhesive wax. Specifically, the heating device can be a heating liquid for hot water to flow around the outer periphery of the wax barrel 4. Alternatively, the heating device can be an electric heating device, for example, the heating device includes a resistance wire wound around the outer periphery of the wax barrel 4.

[0050] In order to prevent the adhesive wax from melting and causing blockage in the feeding device, the heating device also includes a heating element for heating the feeding device. For example, a heating wire, such as a resistance wire, is wound around the feeding device to heat the adhesive wax inside the feeding device.

[0051] Specifically, the assembly welding tool is arranged on the periphery of the positioning tool 2 .

[0052] Specifically, the adhesive wax can be delivered to the injection assembly through a pump body. In another embodiment, the wax barrel 4 is a sealed container, and the wax barrel 4 is filled with compressed gas, so that when the wax barrel 4 is heated, the adhesive wax is delivered to the injection assembly through a feeding device. Specifically, the wax barrel 4 can be inflated by an inflation device to facilitate the timely discharge of the adhesive wax. The wax barrel 4 is provided with an air pressure measuring device for measuring the air pressure in the wax barrel 4.

[0053] When in use, the heating device heats the adhesive wax, and the adhesive wax is transported to the injection assembly position through the feeding device. The injection assembly injects the adhesive wax into the weld. The wax mold is removed after being fixed by spot welding, so that the adhesive wax is evenly injected into the weld.

[0054] It can be seen from the above description that in the wax pattern welding device provided in the specific embodiment of the present application, since the adhesive wax solidifies quickly, the wax pattern and the main runner 17 can be quickly welded together, effectively improving the production efficiency of the parts.

[0055] In a specific embodiment, the injection assembly includes a fixing frame 5, a supporting frame 6, a wax injection tube 7 and a wax injection nozzle 8. The fixing frame 5 is mounted on the movable end of the first manipulator 3; the fixing frame 5 is fixedly mounted on the movable end of the first manipulator 3 by bolts. When circumferential wax injection is required, the first manipulator 3 can drive the wax injection nozzle 8 to rotate circumferentially around the wax model.

[0056] The support frame 6 is installed on the fixing frame 5 . Specifically, the support frame 6 is fixedly installed on the side wall of the fixing frame 5 .

[0057] The wax injection pipe 7 is installed on the support frame 6, and the wax injection pipe 7 is connected to the feeding device.

[0058] The wax injection nozzle 8 is mounted on the fixing frame 5, and the wax injection nozzle 8 is fixedly mounted on the bottom end of the fixing frame 5, and the wax injection nozzle is connected to the wax injection pipe 7. After the adhesive wax is heated and melted in the wax barrel 4, the adhesive wax is injected into the wax injection pipe 7 through the feeding device under the action of air pressure, and then the adhesive wax enters the wax injection nozzle 8 through the wax injection pipe 7, and is injected into the welding seam where the wax mold is connected to the main runner 17 through the wax injection nozzle 8.

[0059] In a specific embodiment, the bottom end of the wax injection nozzle 8 is provided with a bent portion 81, for example, the bent portion 81 forms an obtuse angle, and the discharge port is provided at the bottom end of the bent portion 81. The wax injection nozzle 8 avoids the wax pattern through a broken line design, and the bottom end of the wax injection nozzle 8 is aligned with the weld during welding. The wax injection nozzle 8 rotates around the wax pattern as a whole under the drive of the first manipulator 3, so as to evenly inject the adhesive wax into the weld.

[0060] In a specific embodiment, the injection assembly further includes a first telescopic cylinder 9, the wax injection tube 7 is a flexible tube, the first telescopic cylinder 9 is mounted on the support frame 6, and the telescopic end of the first telescopic cylinder 9 abuts against the side wall of the wax injection tube 7 to squeeze the wax injection tube 7 and then block the wax injection tube 7. Specifically, the first telescopic cylinder 9 is preferably a cylinder, for example, the first telescopic cylinder 9 is a micro cylinder, the first telescopic cylinder 9 is mounted on the side of the support frame 6, and the power output end of the first telescopic cylinder 9 abuts against the side wall of the wax injection tube 7. At this time, the tube body of the wax injection tube 7 is squeezed onto the support frame 6 through the first telescopic cylinder 9. The first telescopic cylinder 9 is used to control the on and off of the adhesive wax. After the push rod of the first telescopic cylinder 9 is extended, it presses the wax injection tube 7, thereby cutting off the flow path of the adhesive wax and preventing the adhesive wax from entering the wax injection nozzle 8, thereby automatically controlling the on and off of the adhesive wax. When the power output end of the first telescopic cylinder 9 moves in the reverse direction, the power output end of the first telescopic cylinder 9 is away from the wax injection tube 7, and the wax injection tube 7 is turned on under the action of the adhesive wax or its own elastic force.

[0061] In a specific embodiment, the wax model assembly welding device also includes an electric turntable 13, and the positioning tool 2 is installed on the electric turntable 13 to drive the positioning tool 2 to rotate. Specifically, the electric turntable 13 can be driven to rotate by a servo motor to improve the rotation accuracy of the positioning tool 2 each time. Specifically, the servo motor drives the positioning tool 2 to rotate through a gear transmission structure.

[0062] The positioning fixture 2 is provided with a plurality of wax mold placement positions for placing wax molds, which are evenly distributed circumferentially around the rotation center of the electric turntable 13. Specifically, three or at least four wax mold placement positions can be provided, depending on the size of the wax mold and the size of the positioning fixture 2.

[0063] In a specific embodiment, the wax model assembly welding device also includes a fixed base plate 1, and the positioning tool 2, the assembly welding tool and the wax barrel 4 are all installed on the fixed base plate 1, and the wax barrel 4 and the assembly welding tool are located on the same side of the positioning tool 2.

[0064] In a specific embodiment, the wax pattern assembly welding device further includes a second manipulator 10 , a fixture assembly 11 and a wax pattern placement table 12 , and the second manipulator 10 is installed on the fixed base plate 1 .

[0065] The clamp assembly 11 is installed at the movable end of the second manipulator 10 , and the clamp assembly 11 is used to clamp the wax model.

[0066] The wax model placement table 12 is installed on the fixed base plate 1. Specifically, the wax model placement table 12 is fixedly installed at the right edge of the fixed base plate 1, and the wax model placement table 12 is arranged on the side of the second manipulator 10.

[0067] Specifically, the fixture assembly 11 includes a finger cylinder, the clamping claw of the finger cylinder is an L-shaped structure, and the finger cylinder grasps the wax model through the front end of the clamping claw, thereby leaving space for the wax injection nozzle 8 to move during welding.

[0068] When in use, the second manipulator 10 transports the wax mold placed on the wax mold placement table 12 to the main runner 17 through the finger cylinder. After the second manipulator 10 cooperates with the first manipulator 3 to complete the welding of the wax mold, the electric turntable 13 drives the positioning tooling 2 to rotate a wax mold placement position and then proceeds to weld the next group of wax molds.

[0069] In a specific embodiment, the wax pattern assembly welding device further includes a panel 14, a protective door 15 and a control console 16. The panel 14 is arranged around the outer periphery of the fixed bottom plate 1, and the two ends of the circumferential arrangement form openings. The positioning tool 2, the assembly welding tool and the wax melting tool are all located in the operating space formed by the panel 14. Specifically, the panel 14 is fixedly installed at the edges of the fixed bottom plate 1.

[0070] The protective door 15 is installed on the enclosure 14 and is used to open and close the opening. The protective door 15 is set on the front side wall of the enclosure 14. Specifically, the protective door 15 can be detachably connected to the enclosure 14, or the protective door 15 can be movably installed on the enclosure 14, for example, the protective door 15 can be rotatably connected to the enclosure 14. The protective door 15 can also be installed on the fixed bottom plate 1. By setting the protective door 15, when the automatic operation is in progress, it is prevented that the staff enters the operation space by mistake.

[0071] The control console 16 is movably mounted away from the enclosure 14, and the control console 16 is located outside the operation space. Specifically, the control console 16 is movably mounted on the enclosure 14 through a bracket. The positioning tool 2, the assembly welding tool and the wax dissolving tool are all connected to the control console 16 by signal. Specifically, the control console 16 is connected to all electrical components on the fixed base plate 1 through wires. Specifically, the first telescopic cylinder 9, the electric turntable 13, the second manipulator 10, and the fixture assembly 11 are all connected to the control console 16. The operator can complete the setting of welding process parameters and equipment operation through the control console 16, which improves the safety of the worker when operating the equipment.

[0072] For ease of understanding, the following is an explanation in conjunction with a specific implementation method. The operator fixes the main runner 17 through the positioning fixture 2, and then the second manipulator 10 drives the finger cylinder to clamp the wax mold on the wax mold placement table 12 and transfer it to the main runner 17. Then the first manipulator 3 drives the wax injection nozzle 8 to move to the weld between the wax mold and the main runner 17. The adhesive wax in the wax barrel 4 is transported to the wax injection nozzle 8 through the wax injection pipe 7 of the feeding device under the action of the air pressure of the high-pressure gas, and then injected into the weld through the wax injection nozzle 8. After the wax mold is fixed by spot welding, the finger cylinder releases the wax mold and moves away. Then the first manipulator 3 drives the wax injection nozzle 8 to rotate around the wax mold, so as to evenly inject the adhesive wax into the weld. After the welding is completed, the push rod of the micro cylinder extends to cut off the flow path of the adhesive wax. The electric turntable 13 drives the positioning fixture 2 to rotate a wax mold placement position and then performs the welding operation of the next group of wax molds.

[0073] The wax model welding device provided in the present application drives the wax injection nozzle 8 to move to the weld between the wax model and the main runner 17 by the first manipulator 3. The adhesive wax in the wax barrel 4 is transported to the wax injection nozzle 8 through the wax delivery pipe under the action of air pressure, and then injected into the weld through the wax injection nozzle 8. During the injection process, the first manipulator 3 drives the wax injection nozzle 8 to rotate around the wax model, so that the adhesive wax is evenly injected into the weld, thereby forming a rounded corner at the weld. The adhesive wax solidifies quickly, so the wax model and the main runner 17 can be quickly welded together, effectively improving the production efficiency of larger parts.

[0074] The present application provides a wax model welding method, which is realized by the above-mentioned wax model welding device based on the injection bonding wax process. Specifically, it includes the steps of: clamping the wax model from the wax model placement table 12 by the clamp assembly 11 of the second manipulator 10, and placing the wax model at the main runner 17. The first manipulator 3 drives the injection assembly to move to the weld between the wax model and the main runner 17. The adhesive wax is heated by a heating device. The adhesive wax is injected into the wax model weld by the injection assembly. The above-mentioned specific structure of the wax model welding device based on the injection bonding wax process, and the present application includes the above-mentioned wax model welding device based on the injection bonding wax process, which also has the above-mentioned technical effects.

[0075] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0076] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wax mold welding device based on injection bonding wax process, characterized in that: include: A positioning tool (2), wherein the positioning tool (2) is used to fix the main runner (17); An assembly welding tool, the assembly welding tool comprising a first manipulator (3) and an injection assembly arranged on the first manipulator (3); A wax melting tool, the wax melting tool comprising a wax barrel (4), a heating device, a feeding device and adhesive wax located in the wax barrel (4), one end of the feeding device is connected to the wax barrel (4), and the other end is connected to the injection assembly to transport the adhesive wax to the injection assembly, and the heating device is installed on the wax barrel (4) to heat the adhesive wax.

2. The wax pattern welding device based on the injection bonding wax process according to claim 1 is characterized in that: The injection assembly comprises: A fixed frame (5), the fixed frame (5) being mounted on the movable end of the first manipulator (3); A support frame (6), wherein the support frame (6) is mounted on the fixing frame (5); a wax injection pipe (7) of the feeding device is mounted on the support frame (6); A wax injection nozzle (8), the wax injection nozzle (8) is mounted on the fixing frame (5), and the wax injection pipe (7) connects the wax barrel (4) and the wax injection nozzle (8).

3. The wax pattern welding device based on the injection bonding wax process according to claim 2 is characterized in that: The bottom end of the wax injection nozzle (8) is provided with a bent portion (81), and the discharge port of the wax injection nozzle (8) is arranged at the bottom end of the bent portion (81).

4. The wax pattern welding device based on the injection bonding wax process according to claim 2 is characterized in that: The injection assembly also includes a first telescopic cylinder (9), the wax injection tube (7) is a flexible tube, the first telescopic cylinder (9) is installed on the support frame (6), and the telescopic end of the first telescopic cylinder (9) abuts against the side wall of the wax injection tube (7) to squeeze the wax injection tube (7) and then seal the wax injection tube (7).

5. The wax pattern welding device based on the injection bonding wax process according to claim 1 is characterized in that: Also includes: An electric turntable (13), the positioning fixture (2) is installed on the electric turntable (13) to drive the positioning fixture (2) to rotate, and the positioning fixture (2) is provided with a plurality of wax model placement positions for placing wax models that are evenly distributed in the circumference with the rotation center of the electric turntable (13) as the center of the circle.

6. The wax pattern welding device based on the injection bonding wax process according to claim 1 is characterized in that: It also comprises a fixed base plate (1), the positioning tool (2), the assembly welding tool and the wax barrel (4) are all installed on the fixed base plate (1), and the wax barrel (4) and the assembly welding tool are located on the same side of the positioning tool (2).

7. The wax pattern welding device based on the injection bonding wax process according to claim 6 is characterized in that: Also includes: A second manipulator (10), the second manipulator (10) being mounted on the fixed base plate (1); A clamp assembly (11), the clamp assembly (11) being mounted on the movable end of the second manipulator (10), the clamp assembly (11) being used to clamp the wax model; A wax model placement platform (12), wherein the wax model placement platform (12) is installed on the fixed base plate (1).

8. The wax pattern welding device based on the injection bonding wax process according to claim 6 is characterized in that: Also includes: A surrounding plate (14), the surrounding plate (14) is arranged around the outer periphery of the fixed bottom plate (1), and two ends of the circumferential arrangement form openings, and the positioning tool (2), the assembly welding tool and the wax melting tool are all located in the operating space formed by the surrounding plate (14); A protective door (15), the protective door (15) being mounted on the enclosure (14) and used for opening and closing the opening; A control console (16), wherein the control console (16) is movably mounted on the enclosure (14), the control console (16) is located outside the operating space, and the positioning tool (2), the assembly welding tool and the wax melting tool are all connected to the control console (16) by signal.

9. The wax pattern welding device based on the injection bonding wax process according to any one of claims 1 to 8, characterized in that: The wax barrel (4) is a sealed container, and the wax barrel (4) is filled with compressed gas, so that when the wax barrel (4) is heated, the adhesive wax is transported to the injection assembly through the feeding device; The heating device further comprises a heating element for heating the feeding device.

10. A wax pattern welding method, characterized in that: The method is realized by the wax mold welding device based on the injection bonding wax process according to any one of claims 1 to 9, comprising the steps of: The wax model is clamped from the wax model placement table (12) by a clamp assembly (11) of a second manipulator (10); The wax mold is placed at the main runner (17); The injection assembly is driven by a first manipulator (3) to move to the welding seam between the wax mold and the main runner (17); heating the bonding wax by means of a heating device; The bonding wax is injected into the wax pattern weld by the injection assembly.

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