A cathode component carbonization furnace

Abstract

The present invention discloses a cathode assembly carbonization furnace, comprising a lower furnace body, an upper cover body, a carbonization gas source, a carbonization power source, a cathode assembly conveying line and a loading and unloading robot; the upper cover body is slidably arranged on the lower furnace body, and is provided with a plurality of spray branches therein, and the spray branches are connected to the carbonization gas source through an outer air pipe; a plurality of groups of carbonization tanks are arranged in the lower furnace body corresponding to the spray branches, and the carbonization tanks are provided with electrode clips, and the electrode clips are connected to the carbonization power source; the loading and unloading robot comprises a mechanical gripper for clamping and transporting cathode assemblies, which is used to assemble the cathode assemblies from the cathode assembly conveying line into the carbonization tanks or to unload the cathode assemblies from the carbonization tanks onto the cathode assembly conveying line. The present invention adopts a new structural design, is applicable to the requirements of assembly line operation, has a high level of automation, effectively improves the carbonization processing efficiency and quality of magnetron cathode assemblies, reduces labor input, and reduces the production cost of enterprises.

Description

Technical Field

[0001] The invention relates to the technical field of magnetron production equipment, in particular to a cathode component carbonization furnace. Background Art

[0002] Microwave ovens have become a common electrical appliance in people's daily lives, and their related technologies have been quite mature after years of development. Especially in recent years, with the improvement of people's living standards, people's demand for microwave ovens has also increased, which has also stimulated microwave oven manufacturers to carry out technological reforms to improve their production capacity. As the core component of microwave ovens, the efficiency and quality of the production and processing of magnetrons are the top priority of microwave oven production, which is directly related to the production capacity and quality of microwave oven production. The cathode assembly is a major component of the magnetron. As the core production capacity component of the magnetron, especially the process processing of the cathode filament, the cathode filament itself is small in size and needs to go through multiple complex processes to improve its corresponding performance parameters to meet the use requirements of the magnetron. Therefore, the cathode assembly has very high requirements for the process, which includes the carbonization process of the cathode assembly filament to improve the performance parameters of the cathode filament. The existing cathode assembly carbonization process is mostly carried out independently, with low automation level, low production capacity and poor quality. It not only requires a large amount of manual resources, but also has low flow efficiency and low product qualification rate. Summary of the invention

[0003] In view of the above problems, the present invention provides a cathode assembly carbonization furnace. The technical solution of the present invention is:

[0004] A cathode assembly carbonization furnace comprises a lower furnace body, an upper cover body, a carbonization gas source, a carbonization power supply, a cathode assembly conveying line and a loading and unloading robot; the upper cover body is slidably arranged on the lower furnace body, and is provided with a plurality of spray branches therein, and the spray branches are connected to the carbonization gas source through outer air pipes; a plurality of groups of carbonization tanks are arranged in the lower furnace body corresponding to the spray branches, and the carbonization tanks are provided with electrode clips, and the electrode clips are connected to the carbonization power supply; the loading and unloading robot comprises a mechanical gripper for clamping and transporting cathode assemblies, so as to assemble the cathode assemblies from the cathode assembly conveying line into the carbonization tanks or to remove the cathode assemblies from the carbonization tanks to the cathode assembly conveying line.

[0005] As a further illustration of the present invention, the cathode assembly conveyor line includes a cathode assembly tooling plate, and a positioning fixture for placing the cathode assembly is provided on the cathode assembly tooling plate.

[0006] Furthermore, clamping notches are provided on both sides of the positioning fixture, and when the cathode assembly is placed thereon, both sides of the K-side tube of the cathode assembly extend out from the clamping notches.

[0007] Furthermore, the mechanical gripper includes a clamping assembly, which includes a positioning sleeve located in the middle and clamping rods arranged on both sides of the positioning sleeve, and a filament groove is opened inward at the lower end of the positioning sleeve; the upper end of the clamping rod is rotatably installed and driven by a cylinder to open or close.

[0008] Furthermore, the positioning sleeve is slidably mounted on the mechanical gripper, and a clamping spring is provided between the two.

[0009] Furthermore, a cathode lead calibration fixture is provided on the loading station of the cathode assembly conveyor line, and the calibration fixture is arranged on the lower side of the cathode assembly conveyor line.

[0010] Furthermore, a workpiece detection sensor is also provided on the loading station of the cathode assembly conveyor line for detecting the cathode assembly on the positioning fixture.

[0011] Furthermore, the carbonization tanks are arranged on the lower furnace body in an array structure.

[0012] Furthermore, the spray branch pipes are arranged on the upper cover body, and fine holes for ventilation are opened on the spray branch pipes.

[0013] Furthermore, the fine holes are arranged in rows along both sides of the spray branch pipe obliquely upward.

[0014] Beneficial effects of the present invention:

[0015] The present invention adopts a new structural design, so that the carbonization treatment of the cathode assembly can be suitable for assembly line operation requirements, with a high level of automation, effectively improving the carbonization processing efficiency and quality of the magnetron cathode assembly, reducing labor input, and reducing the production cost of the enterprise; in addition, multiple protection mechanisms are designed specifically to ensure the safe and stable operation of the cathode assembly carbonization furnace and reduce the product scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is an enlarged view of the local structure of the present invention.

[0018] Figure numerals: lower furnace body 1, upper cover body 2, carbonization gas source 3, cathode assembly conveying line 4, spray branch pipe 5, gas pipe 6, carbonization tank 7, cathode assembly tooling plate 8, positioning sleeve 9, clamping rod 10, tightening spring 11, calibration fixture 12. DETAILED DESCRIPTION

[0019] Example:

[0020] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] A cathode assembly carbonization furnace comprises a lower furnace body 1, an upper cover body 2, a carbonization gas source 3, a carbonization power supply, a cathode assembly conveyor line 4 and a loading and unloading robot; the upper cover body 2 is slidably arranged on the lower furnace body 1, and is provided with a plurality of spray branch pipes 5 therein, and the spray branch pipes 5 are connected to the carbonization gas source 3 through the outer air pipe 6; a plurality of groups of carbonization tanks 7 are arranged in the lower furnace body 1 corresponding to the spray branch pipes 5, and the carbonization tanks 7 are provided with electrode clips therein, and the electrode clips are connected to the carbonization power supply; the loading and unloading robot comprises a mechanical gripper for clamping and transporting the cathode assembly, which is used to assemble the cathode assembly from the cathode assembly conveyor line 4 into the carbonization tank 7 or to remove the cathode assembly from the carbonization tank 7 to the cathode assembly conveyor line 4. During operation, the assembled cathode assembly to be carbonized is continuously transported by the cathode assembly conveyor line 4 to the loading position of the cathode assembly carbonization furnace, and the loading and unloading robot performs the loading process. Through the action of the mechanical gripper, the cathode assembly to be carbonized on the cathode assembly conveyor line 4 is clamped and transported and inserted into the carbonization tank 7, and the loading is performed cyclically until the cathode assembly to be carbonized is inserted into all the carbonization tanks 7 in the lower furnace body 1. After the loading is completed, the upper cover body 2 is closed to form a closed carbonization chamber between the upper cover body 2 and the lower furnace body 1. Under the action of the vacuum pump, the air in the closed carbonization chamber is evacuated until the vacuum requirement of the process is met, and then the carbonization gas is introduced through the spray branch pipe 5 to perform the carbonization process and perform carbonization treatment on the filament of the cathode assembly; after the carbonization is completed, the upper cover body 2 is opened, and the loading and unloading robot performs the unloading process. Through the action of the mechanical gripper, the carbonized cathode assembly is clamped and placed back on the cathode assembly conveyor line 4 to be sent to the next process. The structural design of the cathode assembly carbonization furnace of this embodiment is particularly suitable for the assembly line operation requirements of the cathode assembly, and can effectively improve the carbonization efficiency of the cathode assembly.

[0023] As a further explanation, the cathode assembly conveying line 4 of this embodiment adopts a tooling plate conveying structure, including a cathode assembly tooling plate 8. As shown in the attached drawings, four positioning fixtures are provided on the cathode assembly tooling plate 8, and the cathode assembly is placed on the positioning fixtures and runs with the cathode assembly tooling plate 8. Specifically, clamping notches are provided on both sides of the positioning fixtures, and when the cathode assembly is placed thereon, both sides of the K side tube of the cathode assembly extend from the clamping notches for mechanical clamping.

[0024] Correspondingly, the mechanical gripper includes four groups of clamping components, as shown in the attached figure, the clamping components include a positioning sleeve 9 in the middle and clamping rods 10 arranged on both sides of the positioning sleeve 9, the lower end of the positioning sleeve 9 opens a filament groove inwardly, so that there is a corresponding cavity for accommodating the filament of the cathode assembly during positioning and clamping; the upper end of the clamping rod 10 is rotatably installed and driven by a cylinder to open or close. Specifically, when the cathode assembly tooling plate 8 transports the cathode assembly to be carbonized to the loading position, the four groups of clamping components of the mechanical gripper are respectively aligned with the four positioning fixtures and perform a downward pressing action, so that the positioning sleeve 9 is against the inner side of the side tube of the cathode assembly K, and then the clamping rod 10 closes and clamps the cathode assembly from the outside to the inside, so that the cathode assembly can be transported and correspondingly inserted into the carbonization tank 7 on the lower furnace body 1. After carbonization is completed, the mechanical gripper performs a reverse action to clamp the cathode assembly in the carbonization tank 7 back to the cathode assembly tooling plate 8.

[0025] In this embodiment, the positioning sleeve 9 is slidably installed on the mechanical gripper, and a clamping spring 11 is provided between the two, that is, when the positioning sleeve 9 is pressed against the cathode assembly to position it, the positioning sleeve 9 has a certain movable space so as not to crush the K side tube of the cathode assembly. At the same time, through the action of the clamping spring 11, the positioning sleeve 9 is always pressed against the K side tube of the cathode assembly to ensure the positioning and grasping effect.

[0026] As shown in the attached drawings, a cathode lead calibration fixture 12 is provided on the loading station of the cathode assembly conveyor line 4. The calibration fixture 12 is arranged on the lower side of the cathode assembly conveyor line 4. When the cathode assembly fixture plate 8 runs to the loading station, it is just located above the calibration fixture 12. In this embodiment, the cathode assembly fixture plate 8 includes four positioning fixtures, so four groups of calibration fixtures 12 are provided, corresponding to the positioning fixtures respectively. The lower side of the cathode assembly extends from the lower end of the positioning fixture, so that the cathode lead is just located on the movement track of the calibration fixture 12. When performing the calibration action, the calibration fixture 12 is closed to the middle under the action of the cylinder, and the cathode lead is clamped once and then released, so that the directions of the four cathode assemblies on the cathode assembly fixture plate 8 are consistent, that is, the directions of the cathode leads are located on the same straight line, ensuring that the loading of the cathode assembly can match the direction of the electrode sheet in the carbonization tank 7, so that it can be inserted into the carbonization tank 7 and avoid damage to the cathode assembly. In a preferred embodiment, a workpiece detection sensor is also provided on the loading station for detecting the cathode assembly on the positioning fixture. After the mechanical gripper performs the unloading action, the workpiece detection sensor performs the detection action. If it is detected that the positioning fixture of the cathode assembly fixture plate 8 is controlled, an alarm signal is fed back to prompt the operator to check whether there is any missing cathode assembly that has not been grabbed, so as to prevent the next round of cathode assembly from overlapping in the carbonization tank 7, resulting in product scrapping.

[0027] As shown in the attached drawings, corresponding to the above structure, in order to ensure the efficiency of a single carbonization treatment in the cathode assembly carbonization furnace, the carbonization tank 7 is arranged on the lower furnace body 1 in an array structure. In this embodiment, the carbonization tank 7 is set to 4 rows and 12 columns. Each time the material is loaded, the mechanical gripper assembles four cathode assemblies to a row of carbonization tanks 7. After 12 loading actions, the loading action of a cathode assembly carbonization furnace is completed. Correspondingly, the spray branch pipe 5 is arranged on the upper cover body 2, and two rows of fine holes are opened on both sides of the spray branch pipe 5 obliquely upward. During carbonization, the carbonization gas is uniformly sprayed from the fine holes to ensure the uniformity of the gas distribution in the closed carbonization chamber and improve the quality of the carbonization process. In this embodiment, methane is used as the carbonization gas, and the methane stored in the carbonization gas source 3 is transported to the spray branch pipe 5 through the gas pipe 6 during carbonization.

[0028] The above only describes the preferred embodiments of the present invention, but it cannot be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. In short, all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. A cathode assembly carbonization furnace, characterized in that: It comprises a lower furnace body, an upper cover body, a carbonization gas source, a carbonization power source, a cathode assembly conveying line and a loading and unloading robot; the upper cover body is slidably arranged on the lower furnace body, and is provided with a plurality of spray branches therein, and the spray branches are connected to the carbonization gas source through an outer air pipe; a plurality of groups of carbonization tanks are arranged in the lower furnace body corresponding to the spray branches, and the carbonization tanks are provided with electrode clips, and the electrode clips are connected to the carbonization power source; the loading and unloading robot comprises a mechanical gripper for clamping and transporting the cathode assembly, which is used to assemble the cathode assembly from the cathode assembly conveying line into the carbonization tank or to remove the cathode assembly from the carbonization tank to the cathode assembly conveying line; The cathode assembly conveyor line comprises a cathode assembly tooling plate, and a positioning fixture for placing the cathode assembly is provided on the cathode assembly tooling plate; The positioning fixture has clamping notches on both sides, and when the cathode assembly is placed on it, both sides of the K side tube of the cathode assembly extend out from the clamping notches; The mechanical gripper comprises a clamping assembly, which comprises a positioning sleeve in the middle and clamping rods arranged on both sides of the positioning sleeve, wherein a filament groove is provided inwardly at the lower end of the positioning sleeve; the upper end of the clamping rod is rotatably mounted and driven to open or close by a cylinder; A cathode lead calibration fixture is provided on the loading station of the cathode assembly conveyor line, and the calibration fixture is arranged at the lower side of the cathode assembly conveyor line.

2. The cathode assembly carbonization furnace according to claim 1, characterized in that: The positioning sleeve is slidably mounted on the mechanical gripper, and a tightening spring is arranged between the two.

3. The cathode assembly carbonization furnace according to claim 1, characterized in that: A workpiece detection sensor is also provided on the loading station of the cathode assembly conveyor line for detecting the cathode assembly on the positioning fixture.

4. The cathode assembly carbonization furnace according to claim 1, characterized in that: The carbonization tanks are arranged on the lower furnace body in an array structure.

5. The cathode assembly carbonization furnace according to claim 4, characterized in that: The spray branch pipes are arranged on the upper cover body, and fine holes for ventilation are opened on the spray branch pipes.

6. The cathode assembly carbonization furnace according to claim 5, characterized in that: The fine holes are arranged in a row along both sides of the spray branch pipe and obliquely upward.

Images