A feeding device for electron beam melting

Abstract

This invention relates to the field of electron beam melting technology, and in particular to a feeding device for electron beam melting. The device includes: a material bin; a feeding transmission mechanism mounted on the material bin, the feeding transmission mechanism including a feeding drive motor, a bracket, a feeding drive screw, and a slide rail, the feeding drive screw and the slide rail being connected to the bracket; a track-changing mechanism connected to the material bin, the track-changing mechanism including a track-changing drive motor, a track-changing screw, and a track-changing connector, the track-changing drive motor and the track-changing screw being connected via a track-changing transmission gear; and a material channel mechanism installed inside the material bin, the material channel mechanism including multiple tracks, the bottom of which is connected to the track-changing connector. The above-described solution of this invention, through the mutual cooperation between the material bin, the feeding transmission mechanism, the track-changing mechanism, and the material channel mechanism, achieves automatic feeding of raw materials, facilitating installation and maintenance, and has the advantages of small size and low maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of electron beam melting technology, and in particular to a feeding device for electron beam melting. Background Technology

[0002] Electron beam melting is a high-performance vacuum smelting technology commonly used in the smelting and purification of refractory metals, the preparation of refractory metal alloys, and the manufacturing of refractory metal composite materials. The feeding device, a crucial component of the electron beam melting system, is connected to the vacuum chamber. During the melting process, the metal raw material is slowly moved to the electron beam's action area by the feeding device, causing the metal to melt point by point. Currently, most common feeding devices are based on a rotating revolver magazine structure, which suffers from drawbacks such as large size, complex structure, low reliability, and high overall manufacturing and maintenance costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a feeding device for electron beam melting, so as to solve the problems of large size, complex structure and high cost of existing feeding devices.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0005] A feeding device for electron beam melting, comprising:

[0006] Material bin;

[0007] The feeding transmission mechanism is installed on the top of the material box;

[0008] The feeding transmission mechanism includes a feeding drive motor, a fixed bracket, a T-shaped bracket, a feeding drive screw, and a slide rail;

[0009] The feeding drive screw and the slide rail are both connected to the fixed bracket and the T-shaped bracket. The feeding drive motor and the feeding drive screw are both equipped with feeding transmission gears, and the feeding drive motor and the feeding drive screw are connected through the feeding transmission gears.

[0010] A track-changing mechanism connected to the material box, the track-changing mechanism including a track-changing drive motor, a track-changing screw and a track-changing connector;

[0011] Both the track-changing drive motor and the track-changing lead screw are equipped with track-changing transmission gears. The track-changing drive motor and the track-changing lead screw are connected through the track-changing transmission gears. The track-changing connector is sleeved on the track-changing lead screw.

[0012] The material channel mechanism installed inside the material box includes multiple tracks, the bottom of which is connected to the track changer connector.

[0013] Furthermore, it also includes a support structure installed at the bottom of the hopper.

[0014] Furthermore, the support structure includes a support base and a support rod, the support rod is mounted on the support base, a support head is mounted on the support rod, and the support head is connected to the bottom of the material box.

[0015] Furthermore, the bottom of the material box is provided with a support structure bracket, which is connected to the support head.

[0016] Furthermore, it also includes a sealing door, which is connected to the material box.

[0017] Furthermore, the sealing door includes a door panel, which is provided with a feeding drive screw mounting hole and a feeding hole. A feeding door is installed on the door panel, and the feeding door is located at the feeding hole.

[0018] Furthermore, it also includes a material channel support frame, which is located inside the material box and installed at the bottom of the material channel mechanism.

[0019] Furthermore, the material channel support frame includes a base, a fixing block, and a material channel slide rail. The base is fixed to the inner bottom wall of the housing, and the fixing block and the material channel slide rail are both mounted on the base.

[0020] Furthermore, the feeding transmission mechanism also includes a limiting bracket, which is mounted on the slide rail.

[0021] Furthermore, the top of the material box is provided with a feeding transmission mechanism bracket, which is connected to the feeding transmission mechanism.

[0022] The above-described solution of the present invention has at least the following beneficial effects:

[0023] The above-mentioned solution of the present invention achieves automatic feeding of raw materials through the cooperation between the material box, the feeding transmission mechanism, the track changing mechanism and the material channel mechanism, which is convenient for installation and maintenance and has the advantages of small size and low maintenance cost. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the feeding device for electron beam melting in an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of a feeding device for electron beam melting in an embodiment of the present invention;

[0026] Figure 3 This is a structural diagram of the material bin;

[0027] Figure 4This is a cross-sectional view of the material bin;

[0028] Figure 5 This is a schematic diagram of the power section of the material feeding transmission mechanism;

[0029] Figure 6 This is a schematic diagram of the mechanical part of the material feeding transmission mechanism;

[0030] Figure 7 This is a schematic diagram of the structure when the feeding transmission mechanism is connected to the material box;

[0031] Figure 8 This is a schematic diagram of the power section of the track-changing mechanism;

[0032] Figure 9 This is a structural diagram of the mechanical part of the track-changing mechanism;

[0033] Figure 10 This is a schematic diagram of the material handling mechanism;

[0034] Figure 11 This is a bottom view of the material handling mechanism;

[0035] Figure 12 This is a schematic diagram of the material bar holder;

[0036] Figure 13 This is a structural diagram of a sealed door;

[0037] Figure 14 This is a structural diagram showing the connection between the sealing door and the material box;

[0038] Figure 15 This is a structural diagram of the supporting structure;

[0039] Figure 16 This is a structural schematic diagram of the material channel support frame.

[0040] Explanation of reference numerals in the attached drawings: 1-Material bin, 12-Inlet, 13-Outlet, 14-Support structure bracket, 15-Material feeding transmission mechanism bracket, 16-Sealing flange, 17-Outer ring flange, 18-Mounting interface for the track changing mechanism, 2-Material feeding transmission mechanism, 21-Material feeding drive motor, 211-Drive shaft, 212-Material feeding drive motor base, 213-Connecting plate, 214-Side support plate, 22-Fixed bracket, 23-T-type bracket, 24-Material feeding drive screw, 25-Slide rail, 26-Material feeding transmission gear, 27-Limit bracket, 3-Track changing mechanism, 31-Track changing drive motor, 32-Track changing screw, 33-Track changing connector, 34-Track changing transmission gear, 35-Track changing drive motor connecting plate, 36-Track changing drive motor support frame, 37-Connecting flange, 4-Material channel mechanism 41-Railway, 411-Roller, 42-Material channel support base, 43-Material bar holder, 431-Material bar clamp, 432-Material bar support frame, 433-Handle, 44-Modifier connector connecting plate, 5-Support structure, 51-Support base, 52-Support rod, 53-Support head, 54-Adjusting handle, 6-Sealing door, 61-Door panel, 611-Material supply drive screw mounting hole, 612-Feed hole, 62-Feed door, 63-Rotating handle, 7-Material channel support frame, 71-Base support, 72-Fixing block, 73-Material channel slide rail, 8-Raw material bar. Detailed Implementation

[0041] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0042] like Figures 1-16 As shown, an embodiment of the present invention provides a feeding device for electron beam melting, comprising:

[0043] Material box 1, which is equipped with a water inlet 12 and a water outlet 13;

[0044] The feeding transmission mechanism 2 is installed on the top of the material box 1. The feeding transmission mechanism includes a feeding drive motor 21, a fixed bracket 22, a T-shaped bracket 23, a feeding drive screw 24, and a slide rail 25. The feeding drive motor 21 is equipped with a drive shaft 211. The feeding drive screw 24 and the slide rail 25 are both connected to the fixed bracket 22 and the T-shaped bracket 23. The feeding drive motor 21 and the feeding drive screw 24 are both equipped with feeding transmission gears 26. The feeding drive motor 21 and the feeding drive screw 24 are connected through the feeding transmission gears 26.

[0045] The track-changing mechanism 3 is connected to the material box 1. The track-changing mechanism includes a track-changing drive motor 31, a track-changing screw 32, and a track-changing connector 33. Track-changing transmission gears 34 are installed on both the track-changing drive motor 31 and the track-changing screw 32. The track-changing drive motor 31 and the track-changing screw 32 are connected through the track-changing transmission gears 34. The track-changing connector 33 is sleeved on the track-changing screw 32.

[0046] The material channel mechanism 4 is installed inside the material box 1. The material channel mechanism includes multiple tracks 41. The bottom of the track 41 is connected to the track change connector 33. Rollers 411 are provided at the bottom of the track 41.

[0047] The feeding device for electron beam melting in this embodiment achieves automatic feeding of raw materials through the cooperation between the material box, the feeding transmission mechanism, the track changing mechanism and the material channel mechanism. It is easy to install and maintain, and has the advantages of small size and low maintenance cost.

[0048] like Figure 3 and Figure 4 In an optional embodiment of the present invention, the material box 1 is rectangular, and a sealing flange 16 is provided on the outer wall in the middle. The sealing flange 16 is used to fix the material box 1 to the vacuum chamber. The material box 1 is divided into two sections, front and rear, with the front section located inside the vacuum chamber. The material box 1 is at a high temperature during melting. Therefore, water inlets 12 and water outlets 13 are respectively provided at the upper and lower ends of the material box 1. The water inlets 12 and water outlets 13 are connected to cooling water channels to cool the material box 1. The rear section of the material box 1 is located in the atmospheric environment. A feeding transmission mechanism support 15 is provided at the top. The feeding transmission mechanism support 15 can be a U-shaped steel, which is welded and fixed to the material box 1 for connecting and fixing the feeding transmission mechanism to the material box 1, enabling quick assembly and disassembly. A support structure support frame 14 is welded to the bottom of the material box 1 for connecting and fixing the support structure to the material box 1, realizing the purpose of the support structure supporting the material box 1, and also facilitating disassembly and assembly. The rear section of the material bin 1 is provided with an outer ring flange 17, which is a sealing interface with a sealing ring mounting groove. It can be used for vacuum sealing end face connection. In specific implementation, the outer ring flange 17 is fixedly connected to the sealing door 6. The rear side of the material bin 1 is provided with a guide rail mechanism mounting interface 18. In specific implementation, the guide rail screw 32 passes through the guide rail mechanism mounting interface 18.

[0049] like Figure 1 and Figure 2 In an optional embodiment of the present invention, the device further includes a support structure 5, which is installed at the bottom of the material box 1. The support structure mainly provides support for the suspended portion (rear section) of the material box 1, thereby improving the reliability and safety of the device.

[0050] like Figure 15In an optional embodiment of the present invention, the support structure includes a support base 51 and a support rod 52. The support base 51 is mounted on a fixed plane, the support rod 52 is mounted on the support base 51, and a support head 53 is mounted on the support rod 52. The support head 53 is connected to the support frame 14 of the support structure at the bottom of the material box 1. An adjustment handle 54 can also be installed between the support base 51 and the support rod 52. By operating the adjustment handle 54, the height of the support rod 52 and the support head 53 can be adjusted to meet the installation support of the material box 1.

[0051] like Figure 1 and Figure 2 In an optional embodiment of the present invention, the device further includes a sealing door 6, which is connected to the material bin 1. The sealing door 6 not only seals the material bin 1 but also allows for the addition of materials.

[0052] like Figure 2 , Figure 13 and Figure 14 In an optional embodiment of the present invention, the sealing door 6 includes a door panel 61, which may be a sealing door flange. The sealing flange is installed and connected to the outer flange 17, and sealed with a rubber ring. The door panel 61 is provided with a feeding drive screw mounting hole 611. A portion of the feeding drive screw 24 passes through the feeding drive screw mounting hole 611 and is installed inside the material box 1. The portion of the feeding drive screw 24 with the feeding transmission gear 26 is located outside the material box 1. The door panel 61 is also provided with a feeding hole 612, and a feeding door 62 is installed on the door panel 61. The feeding door 62 is located at the feeding hole 612 and is used to seal the feeding hole 612. The feeding door 62 is connected to the door panel 61 by a hinge and sealed with a rubber ring. The feeding door 62 can be pressed and positioned by rotating handles 63 on both sides. Opening the feeding door 62 allows material to be added to the material box 1.

[0053] like Figure 2 and Figure 4 In an optional embodiment of the present invention, the device further includes a material channel support frame 7, which is disposed inside the housing and installed at the bottom of the material channel mechanism. The material channel support frame mainly serves to support the material channel mechanism and provide a track for the material channel mechanism to change track.

[0054] like Figure 16In an optional embodiment of the present invention, the material channel support frame 7 includes a base 71, a fixing block 72, and a material channel slide rail 73. The base 71 is welded and fixed to the bottom surface of the inner cavity of the material box 1. The upper part of the base 71 has a threaded hole. A single material channel support frame is equipped with two bases 71. The fixing blocks 72 are installed on both sides of the upper part of the base 71. A single material channel support frame is equipped with four fixing blocks 72. The fixing blocks 72 have through holes and can be fixed to the base 71 by screws. The material channel slide rail 73 is installed on the base 71 and is located in the middle of the two fixing blocks 72. The slide rail 73 can be locked by tightening the fixing blocks 72.

[0055] like Figure 5 and Figure 6 The feeding transmission mechanism consists of two parts: the power part and the mechanical part. For example... Figure 5 The power component of the feeding transmission mechanism consists of a feeding drive motor 21, a drive shaft 211, a feeding transmission gear 26, a feeding drive motor base 212, a connecting plate 213, and a side support plate 214. The feeding drive motor 21 drives the drive shaft 211 and the feeding transmission gear 26, thus driving the entire feeding transmission mechanism. The feeding drive motor base 212 is welded and fixed to the feeding transmission mechanism bracket 15 on the material box 1, and has pre-drilled threaded holes. The connecting plate 213 is installed on the feeding drive motor base 212 to support the feeding drive motor 21, and has four pre-drilled slots. The side support plate 214 is installed on the side edge of the feeding drive motor base 212, and has pre-drilled threaded holes; screws can be used to laterally fix the connecting plate 213. The bottom of the feeding drive motor 21 has four through holes for connecting the feeding drive motor 21, the connecting plate 213, and the feeding drive motor base 212.

[0056] like Figure 6 The mechanical part of the feeding transmission mechanism mainly consists of a fixed bracket 22, a T-shaped bracket 23, a limit bracket 27, a square slide rail 25, a feeding drive screw 24, and a feeding transmission gear 26. For example... Figure 7 The fixed bracket 22, T-shaped bracket 23, and limiting bracket 27 are welded to the inner wall of the material box 1, mainly providing fixed support for the slide rail 25 and the feeding drive screw 24. A "T"-shaped tooling is connected to the lower part of the T-shaped bracket 23 for pushing the raw material bar 8. Both ends of the slide rail 25 are fixed to the fixed bracket 22 and the limiting bracket 27, and are embedded in the upper notch of the T-shaped bracket 23. One end of the feeding drive screw 24 is fixed to the fixed bracket 22, the middle part is connected to the T-shaped bracket 23 through a screw connecting device, and the other end is equipped with a feeding transmission gear 26. The feeding drive motor 21 is connected to the feeding drive screw 24 through two feeding transmission gears 26 and a chain between the two feeding transmission gears 26. Driven by the feeding drive motor 21, the feeding movement of the T-shaped bracket 23 can be directly realized, completing the feeding operation.

[0057] The track-changing mechanism consists of two parts: the power unit and the mechanical unit. For example... Figure 8 The power unit of the track-changing mechanism consists of a track-changing drive motor 31, a track-changing transmission gear 34, a track-changing drive motor connecting plate 35, and a track-changing drive motor support frame 36. The track-changing drive motor 31 drives the track-changing transmission gear 34 to achieve track changing. The track-changing drive motor support frame 36 is welded and fixed to the ground. The track-changing drive motor connecting plate 35 is installed on the track-changing drive motor support frame 36 to support the track-changing drive motor 31. The track-changing drive motor connecting plate 35 has four pre-drilled holes, and the bottom of the track-changing drive motor 31 has four through holes for connecting the track-changing drive motor 31 and the track-changing drive motor connecting plate 35.

[0058] like Figure 9 The mechanical part of the track-changing mechanism consists of a track-changing transmission gear 34, a track-changing lead screw 32, a connecting flange 37, and a track-changing connector 33. The track-changing transmission gear 34 on the track-changing drive motor 31 is connected to the track-changing transmission gear 34 on the track-changing lead screw 32 via a chain. The track-changing drive motor 31 can directly drive the feed movement of the track-changing connector 33, completing the track-changing operation of the material channel mechanism. The connecting flange 37 is connected to the track-changing mechanism mounting port 18 on the material box 1, realizing the fixation of the mechanical part of the track-changing mechanism to the material box 1.

[0059] like Figure 10 and Figure 11 The material handling mechanism mainly consists of a material handling channel and a bar stock holder 43. The material handling channel comprises a material handling channel support base 42 and at least two tracks 41. The material handling channel support base 42 is connected and fixed to the tracks 41, which move along the slide rails of the material handling channel support base 42 using rollers 411 at their bottom. The tracks 41 are welded together from rollers and "V"-shaped tooling, allowing the bar stock holder 43 to slide on top of them. A variable track connector connecting plate 44 can be installed at the bottom of the tracks 41 for connection with the variable track connector 33. Figure 12 The bar stock holder 43 consists of a bar stock clamp 431, a bar stock support frame 432, and a handle 433. The bar stock clamp 431 can fix the raw material bar stock 8, and the end of the raw material bar stock 8 contacts the bar stock support frame 432 to achieve a limiting function. The handle 433 facilitates the disassembly and movement of the bar stock holder during the feeding operation.

[0060] One working embodiment of the feeding device for electron beam melting in this example is:

[0061] Rotate handle 63 to open feed gate 62, placing two metal raw material bars 8 onto the two tracks 41 respectively. The raw material bars 8 are then fixed and limited by the bar holder 43. After the raw material bars 8 are placed, rotate handle 63 to close feed gate 62. Feed drive motor 21 drives feed transmission gear 26 and feed drive screw 24, causing T-shaped bracket 23 to push the raw material bars 8 into the vacuum chamber for melting. Once the raw material bars 8 on one track 41 have melted, track-changing drive motor 31 drives track-changing screw 32. Track-changing screw 32 drives track-changing connector 33, which in turn moves track 41 along the slide rail of material channel support base 42 using rollers 411 at the bottom. This moves track 41 onto the movement path of T-shaped bracket 23, achieving track-changing operation of the material channel mechanism, allowing the raw material bars 8 on the other track 41 to melt and enter the vacuum chamber for melting. Because the temperature inside the vacuum chamber is high, the water inlet 12 and water outlet 13 on the material box 1 are connected to the cooling water channel to cool the material box 1 and the internal parts, thereby improving the safety and reliability of the device.

[0062] The feeding device for electron beam melting in this embodiment is a modular unit assembled from the material bin, feeding transmission mechanism, track changing mechanism, and material channel mechanism. It allows for the overall transfer, positioning, and installation of the device according to specific needs. It features highly concentrated functionality, including multiple material stations, automatic material feeding, and automatic material changing. Furthermore, the device can be integrated with external automated equipment to perform lifting, transfer, and docking operations. It boasts advantages such as compact design, small footprint, and rich functionality, making it suitable for electron beam melting of materials using bar stock. The dimensions of the feeding channel and material bin can be modified to meet the requirements of different melting raw materials, depending on the actual application scenario. The feeding device has a rational structural layout, and its own vacuum-sealed boundary ensures the safety of the device.

[0063] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A feed device for electron beam melting, characterized in that It includes: Material box (1); Feed drive mechanism (2) mounted on the material box (1); The feed drive mechanism (2) comprises a feed drive motor (21), a fixed hanger (22), a T-shaped hanger (23), a feed drive lead screw (24) and a slide rail (25); The feed drive lead screw (24) and the slide rail (25) are connected with the fixed hanger (22) and the T-shaped hanger (23), the feed drive motor (21) and the feed drive lead screw (24) are provided with feed drive gears (26), and the feed drive motor (21) and the feed drive lead screw (24) are connected through the feed drive gears (26); The variable rail mechanism (3) connected with the material box (1), the variable rail mechanism (3) comprises a variable rail drive motor (31), a variable rail lead screw (32) and a variable rail connector (33); The variable rail drive motor (31) and the variable rail lead screw (32) are provided with variable rail transmission gears (34), and the variable rail drive motor (31) and the variable rail lead screw (32) are connected through the variable rail transmission gears (34), and the variable rail connector (33) is sleeved on the variable rail lead screw (32); The material channel mechanism (4) mounted in the material box (1) comprises a plurality of rails (41), and the bottom of the rail (41) is connected with the variable rail connector (33).

2. A feed material arrangement for electron beam melting according to claim 1, characterized in that It also includes a support structure (5) mounted on the bottom of the material box (1).

3. A feed material arrangement for electron beam melting according to claim 2, characterized in that The support structure (5) comprises a support base (51) and a support rod (52), the support rod (52) is mounted on the support base (51), the support rod (52) is provided with a support head (53), and the support head (53) is connected with the bottom of the material box (1).

4. A feed arrangement for electron beam melting according to claim 3, characterized in that The bottom of the material box (1) is provided with a support structure support (14), and the support structure support (14) is connected with the support head (53).

5. A feed material arrangement for electron beam melting according to claim 1, characterized in that It also includes a sealing door (6) connected with the material box (1).

6. A feed material arrangement for electron beam melting according to claim 5, characterized in that The sealing door (6) comprises a door plate (61), the door plate (61) is provided with a feed drive lead screw mounting hole (611) and a feeding hole (612), the door plate (61) is provided with a feeding door (62), and the feeding door (62) is located at the feeding hole (612).

7. A feed material arrangement for electron beam melting according to claim 1, characterized in that It also includes a material channel support frame (7) arranged in the interior of the material box (1) and mounted at the bottom of the material channel mechanism (4).

8. A feed material arrangement for electron beam melting according to claim 7, characterized in that The material channel support frame (7) comprises a bottom support (71), a fixed block (72) and a material channel slide rail (73), the bottom support (71) is fixed to the inner bottom wall of the material box (1), and the fixed block (72) and the material channel slide rail (73) are mounted on the bottom support (71).

9. A feed material arrangement for electron beam melting according to claim 1, characterized in that The feed drive mechanism (2) further comprises a limiting hanger (27) mounted on the slide rail (25).

10. A feed material arrangement for electron beam melting according to claim 1, characterized in that The top of the material box (1) is provided with a feed drive mechanism support (15), and the feed drive mechanism support (15) is connected with the feed drive mechanism (2).

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