Magnetron anode plate clamp

Abstract

The utility model discloses a magnetron anode plate clamp which comprises a chuck and a mandrel, clamping teeth are formed at the lower end of the chuck, the clamping teeth are uniformly distributed in the circumferential direction, side clamping faces are formed on the clamping teeth, through grooves are formed in the lower portion of the chuck, and the through grooves are formed between the adjacent clamping teeth. Rotary clamping jaws used for clamping the anode plates on the corresponding side clamping surfaces are formed at the lower end of the mandrel, are uniformly distributed in the circumferential direction and are arranged in the corresponding through grooves; and the driving device is used for driving the mandrel to rotate and is connected with the upper end of the mandrel. The anode plate clamp disclosed by the utility model is good in stability, so that stable production is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of magnetron assembly equipment, in particular to a magnetron anode plate clamp. Background Art

[0002] A magnetron is an electric vacuum device used to generate microwave energy. It is essentially a diode placed in a constant magnetic field. Under the control of mutually perpendicular constant magnetic fields and constant electric fields, the electrons in the tube interact with the high-frequency electromagnetic field, converting the energy obtained from the constant electric field into microwave energy, thereby achieving the purpose of generating microwave energy. The magnetron includes an anode tube and an anode plate, and the anode plates are radially distributed in the anode tube. For example, please refer to the Chinese utility model patent publication number CN206312861U "A magnetron anode assembly and a magnetron provided with the magnetron anode assembly".

[0003] At present, there is an assembly device for placing several anode plates into the anode cylinder at the same time. Specifically, several anode plates are inserted into the clamp axially relative to each other, and the clamp uses vacuum adsorption to hold the anode plates, so that five anode plates are radially distributed and held on the clamp. After that, the clamp moves the five anode plates to a position aligned with the anode cylinder through a transfer mechanism, and then the clamp inserts the five anode plates into the anode cylinder at the same time; however, the suction holes of the clamp are easily blocked, resulting in a decrease in suction force and easily leading to leakage of the anode plate; in addition, when there are burrs on the anode plate, the burrs will pad the anode plate above the suction hole, resulting in serious leakage and a significant decrease in suction force, which will cause the anode plate to fail to be sucked up. Therefore, the stability of the anode plate clamp in the prior art is not good, which is not conducive to stable production, and it is necessary to make improvements. Summary of the invention

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a magnetron anode plate fixture, which has good stability and is conducive to stable production.

[0005] The purpose of the utility model is achieved through the following technical solutions.

[0006] The utility model discloses a magnetron anode plate clamp, comprising a chuck and a core shaft, wherein the lower end of the chuck is formed with clamping teeth, the clamping teeth are evenly arranged in the circumference, the clamping teeth form side clamping surfaces, a through groove is formed in the lower part of the chuck, the through groove is arranged between adjacent clamping teeth, the lower end of the core shaft is formed with rotating clamping claws for clamping the anode plate on the corresponding side clamping surfaces, the rotating clamping claws are evenly arranged in the circumference, and the rotating clamping claws are arranged in the corresponding through grooves; and the utility model also includes a driving device for driving the core shaft to rotate, and the driving device is connected to the upper end of the core shaft.

[0007] Preferably, the rotary clamping jaw is bonded with an anti-slip rubber pad for contacting the anode plate.

[0008] Preferably, the chuck jaw is formed with an outer cylindrical surface, the outer end of the through slot is formed with an inner cylindrical surface, and the outer cylindrical surface is adaptively and closely connected with the inner cylindrical surface.

[0009] Preferably, the lower end of the chuck is formed with an axial positioning end face for abutting against the upper end of the anode plate, and the center position of the lower end of the chuck is provided with a radial positioning core column for abutting against one end of the anode plate.

[0010] Preferably, the driving device is configured as a rotary cylinder, and the rotary cylinder is connected to the upper end of the core shaft via a coupling.

[0011] Preferably, the magnetron anode plate clamp of the utility model also includes a clamp support frame and a cylinder support, the cylinder support is installed in the clamp support frame, the rotating cylinder is arranged in the clamp support frame, the rotating cylinder includes a cylinder body, the cylinder body is installed on the cylinder support, the chuck is installed on the outer side of the lower end of the clamp support frame, and the core shaft passes through the lower end of the clamp support frame.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the lower end of the chuck is provided with clamping teeth, the clamping teeth are evenly distributed in the circumference, the clamping teeth form side clamping surfaces, a through groove is formed in the lower part of the chuck, the through groove is arranged between adjacent clamping teeth, the lower end of the core shaft is formed with a rotating clamping claw for clamping the anode plate on the corresponding side clamping surface, the rotating clamping claw is arranged in the corresponding through groove, and a driving device is arranged for driving the core shaft to rotate, so that the anode plate clamp of the utility model has better stability, which is conducive to stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the magnetron anode plate fixture of the utility model.

[0014] Figure 2 It is an exploded schematic diagram of the magnetron anode plate fixture of the utility model.

[0015] Figure 3 It is a schematic cross-sectional structure diagram of the magnetron anode plate fixture of the utility model.

[0016] Figure 4 The utility model is a schematic diagram of the structure of the magnetron anode plate clamp clamping the anode plate with the clamp support frame removed, viewed from above.

[0017] Figure 5 It is a top view of the three-dimensional structure of the chuck of the utility model.

[0018] Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the mandrel of the utility model.

[0019] Explanation of reference numerals: chuck 1; clamping teeth 11; side clamping surface 111; through groove 12; axial positioning end surface 13; radial positioning core column 14; mounting hole 15; inner cylindrical surface 101; core shaft 2; rotating clamping claw 21; anti-slip rubber pad 22; shaft head 23; outer cylindrical surface 201; rotating cylinder 3; output shaft 31; cylinder body 32; clamp support frame 4; coupling 5; cylinder support 6; anode plate 99. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] The magnetron anode plate fixture of the utility model is as follows Figures 1 to 3 As shown, it includes a chuck 1 and a mandrel 2, as Figure 5 As shown, the lower end of the chuck 1 is formed with a clamping tooth 11, which is convex downward along the axis (the convex height is 4 mm to 5 mm), and the clamping teeth 11 are evenly distributed in the circumferential direction, so the clamping teeth 11 are in a fan shape. For example, the number of the clamping teeth 11 is five, and the clamping teeth 11 are formed with a side clamping surface 111. A through groove 12 is formed in the lower part of the chuck 1, and the through groove 12 is arranged between adjacent clamping teeth 11, so the through groove 12 is also evenly distributed in the circumferential direction. Figure 6 As shown, the lower end of the mandrel 2 is formed with a screw clamping claw 21 for clamping the anode plate 99 on the corresponding side clamping surface 111, and the screw clamping claw 21 is evenly distributed in the circumferential direction, as shown in FIG. Figure 1 and Figure 4 As shown, the rotary clamping claw 21 is arranged in the corresponding through slot 12; the magnetron anode plate clamp of the utility model also includes a driving device for driving the core shaft 2 to rotate, and the driving device is connected to the upper end of the core shaft 2. The driving device can be a cylinder, a motor or a hydraulic motor.

[0022] During the production process, the vibrating disk assembly loaded with the anode plates 99 radially transports the anode plates 99 to the jig one by one. Specifically, the jig can be rotated at a certain degree so that five anode plates 99 are radially inserted into the jig. Then, the magnetron anode plate fixture of the utility model is moved to the top of the jig, and then the magnetron anode plate fixture is moved down, so that the five anode plates 99 on the jig can be inserted relatively between the corresponding side clamping surfaces 111 and the lower ends of the rotating clamping claws 21 along the axial direction of the chuck 1 at the same time. Then, as shown in FIG. Figure 1 and Figure 4 As shown, the driving device drives the mandrel 2 to rotate counterclockwise (in Figure 4 The anode plate 99 is pressed against the side clamping surface 111 by the rotating clamping jaw 21, and the driving force of the driving device on the mandrel 2 is maintained, so that the five anode plates 99 are clamped relatively fixed at the same time. Then, the magnetron anode plate clamp is moved to the anode cylinder position by the transfer mechanism. The above-mentioned transfer mechanism inserts the five anode plates 99 on the chuck 1 into the anode cylinder at the same time, and then the driving device drives the mandrel 2 to rotate clockwise (in Figure 4 Under the visual field), each rotary clamping claw 21 releases the corresponding anode plate 99 at the same time, and the above-mentioned transfer mechanism moves the anode plate clamp away from the anode cylinder position; because the utility model adopts the clamping structure of the rotary clamping claw 21 combined with the clamping teeth 11, it avoids the situation in the prior art that the anode plate cannot be clamped due to the blockage of the suction hole. Even if there are small debris or burrs on the surface of the anode plate 99, the rotary clamping claw 21 can still transmit the pressure to the side clamping surface 111 through the small debris or burrs, so that each anode plate 99 can be clamped firmly, and because the rotary clamping claw 21 is in a shape extending downward from the main body of the mandrel 2, each rotary clamping claw 21 can be clamped firmly. The clamping jaw 21 can bend and deform elastically to a small extent, so it can compensate for slight errors in the thickness of the anode plate 99, and can also compensate for the total thickness change of the anode plate 99 caused by small debris or burrs; as can be seen from the above, the anode plate clamp of the utility model can clamp each anode plate 99 firmly or release each anode plate 99 at the same time, which is beneficial to improving work efficiency. Compared with the prior art, the utility model avoids the situation of missing the anode plate 99, and also avoids the problem of displacement of the anode plate 99 during the transfer of the anode plate 99. Therefore, the anode plate clamp of the utility model has better stability, which is beneficial to stable production.

[0023] Furthermore, if Figure 6 As shown, the rotary clamping jaw 21 is bonded with an anti-skid rubber pad 22 for contacting the anode plate 99. The anti-skid rubber pad 22 can be adhered to one side of the rotary clamping jaw 21 by adhesive. The anti-skid rubber pad 22 can be made of rubber. Therefore, when the rotary clamping jaw 21 clamps the anode plate 99, the anti-skid rubber pad 22 is pressed against one side of the anode plate 99, which is conducive to significantly improving the friction between the anode plate clamp of the utility model and the anode plate 99, and further helps to clamp the anode plate 99 reliably and firmly. Since the anti-skid rubber pad 22 can be elastically flattened and deformed or partially concave and deformed, the anti-skid rubber pad 22 can further compensate for the processing errors of the chuck 1 and the mandrel 2. In addition, if there are small protrusion defects on the surface of the anode plate 99, the above-mentioned small protrusions can be sunken in the anti-skid rubber pad 22. The thickness of the anti-skid rubber pad 22 can be set to 0.4 mm to 0.6 mm.

[0024] Furthermore, if Figure 6 As shown, the chuck 21 is formed with an outer cylindrical surface 201. Figure 5 As shown, the outer end of the through slot 12 (i.e., the end relatively far from the central axis of the chuck 1) is formed with an inner cylindrical surface 101, as shown in FIG. Figure 4 As shown, the outer cylindrical surface 201 is adapted to be closely connected with the inner cylindrical surface 101. Specifically, the chuck jaws 21 are actually formed by cutting and removing materials from the main body of the mandrel 2. Therefore, the outer cylindrical surface 201 is actually the cylindrical surface of the main body of the mandrel 2. The inner cylindrical surface 101 plays a radial positioning role for the chuck jaws 21 to prevent the chuck jaws 21 from shaking relative to the chuck 1.

[0025] Furthermore, if Figure 5 As shown, the lower end of the chuck 1 is formed with an axial positioning end face 13 for abutting against the upper end of the anode plate 99, so that the anode plate 99 is positioned in the axial direction. The center position of the lower end of the chuck 1 is provided with a radial positioning core column 14 for abutting against one end of the anode plate 99, as shown in FIG. Figure 4 As shown, specifically, one end of the radially distributed anode plate 99 close to the central axis of the chuck 1 is pressed against the cylindrical outer wall of the radial positioning stem 14, so that the anode plate 99 is positioned in the radial direction. The radial positioning stem 14 can be installed at the lower end of the chuck 1 by screws, as shown in FIG. Figure 1 and Figure 4 As shown, since the anode plate 99 is against the side clamping surface 111, the anode plate 99 is positioned in the circumferential direction, which is conducive to making the posture of each anode plate 99 on the clamp 1 stable and consistent, and is conducive to the stable insertion of the anode plate 99 into the anode cylinder.

[0026] Furthermore, if Figures 1 to 3 As shown, the driving device is set as a rotary cylinder 3. The rotary cylinder 3 can be a CDRB2 series rotary cylinder of SMC company on the market. The rotary cylinder 3 is connected to the upper end of the core shaft 2 through a coupling 5. Specifically, the rotary cylinder 3 is provided with an output shaft 31, and the output shaft 31 is connected to the upper part of the coupling 5. Figure 6 As shown, the upper end of the core shaft 2 is formed with a shaft head 23, and the shaft head 23 is connected to the lower part of the coupling 5. The coupling 5 can be a diaphragm coupling. Since the rotary cylinder is easy to purchase, it also avoids the need to set up a hydraulic station, and it is easy to achieve forward and reverse rotation and can provide a large static torque, so the driving device is preferably set as a rotary cylinder 3.

[0027] Furthermore, if Figures 1 to 3 As shown, the magnetron anode plate fixture of the utility model also includes a fixture frame 4 and a cylinder support 6. The fixture frame 4 is a rectangular parallelepiped. The upper end of the fixture frame 4 can be used to connect the above-mentioned transfer mechanism. The cylinder support 6 is installed in the fixture frame 4. The cylinder support 6 includes two mutually perpendicular steel plates, one of which is installed on the inner wall of the fixture frame 4 by corresponding screws. The rotating cylinder 3 is arranged in the fixture frame 4. The rotating cylinder 3 includes a cylinder body 32, and the cylinder body 32 is installed on the other steel plate of the cylinder support 6 by corresponding screws. The output shaft 31 of the rotating cylinder 3 passes through the cylinder support 6, and the chuck 1 is installed on the outer side of the lower end of the fixture frame 4, as shown in FIG. Figure 5 As shown, a mounting hole 15 is formed on the outer periphery of the chuck 1, and corresponding screws are passed through the mounting hole 15 and screwed to the clamp support frame 4, and the core shaft 2 passes through the lower end of the clamp support frame 4, that is, the chuck 1 is sleeved outside the core shaft 2. By setting the clamp support frame 4, the chuck 1 and the rotating cylinder 3 are assembled into a whole, which is beneficial to the structural stability of the magnetron anode plate clamp.

Claims

1. A magnetron anode plate fixture, characterized in that: The invention comprises a chuck (1) and a mandrel (2), wherein the lower end of the chuck (1) is formed with clamping teeth (11), the clamping teeth (11) are evenly arranged in the circumferential direction, the clamping teeth (11) are formed with side clamping surfaces (111), a through groove (12) is formed in the lower part of the chuck (1), the through groove (12) is arranged between adjacent clamping teeth (11), the lower end of the mandrel (2) is formed with a rotating clamping claw (21) for clamping an anode plate (99) on the corresponding side clamping surface (111), the rotating clamping claw (21) is evenly arranged in the circumferential direction, and the rotating clamping claw (21) is arranged in the corresponding through groove (12); and the invention also comprises a driving device for driving the mandrel (2) to rotate, the driving device being connected to the upper end of the mandrel (2).

2. The magnetron anode plate fixture according to claim 1, characterized in that: The rotary clamping jaw (21) is bonded with an anti-slip rubber pad (22) for contacting the anode plate (99).

3. The magnetron anode plate fixture according to claim 1, characterized in that: The rotating clamping jaw (21) is formed with an outer cylindrical surface (201), the outer end of the through slot (12) is formed with an inner cylindrical surface (101), and the outer cylindrical surface (201) is adaptively abutted and connected with the inner cylindrical surface (101).

4. The magnetron anode plate fixture according to claim 1, characterized in that: The lower end of the chuck (1) is formed with an axial positioning end surface (13) for abutting against the upper end of the anode plate (99), and the center position of the lower end of the chuck (1) is provided with a radial positioning core column (14) for abutting against one end of the anode plate (99).

5. The magnetron anode plate fixture according to claim 1, characterized in that: The driving device is configured as a rotary cylinder (3), and the rotary cylinder (3) is connected to the upper end of the core shaft (2) via a coupling (5).

6. The magnetron anode plate fixture according to claim 5, characterized in that: It also comprises a fixture support frame (4) and a cylinder support (6), wherein the cylinder support (6) is mounted in the fixture support frame (4), the rotary cylinder (3) is arranged in the fixture support frame (4), the rotary cylinder (3) comprises a cylinder body (32), the cylinder body (32) is mounted on the cylinder support (6), the chuck (1) is mounted on the outer side of the lower end of the fixture support frame (4), and the core shaft (2) passes through the lower end of the fixture support frame (4).

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