Multi-station clamping device for vacuum induction precision welding

Abstract

The utility model discloses a multi-station clamping device for vacuum induction precision welding, which comprises a welding table, a rotating mechanism is mounted on the welding table, a plurality of station clamping devices are mounted on a rotating surface of the rotating mechanism, and the plurality of station clamping devices are arranged along the outer circumference of the rotating surface; automatic welding of multiple welding products at a time can be achieved, automatic welding of one welding product at a time can also be conducted, the accuracy of the welding positions of the welding products is improved, the local heating speed is increased, and therefore the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to welding technology, specifically a multi-station clamping device for vacuum induction precision welding. Background Technology

[0002] Common brazing methods include flame brazing, dip brazing, induction brazing, furnace brazing, and vacuum brazing. The product being brazed is stainless steel. During the brazing process, the temperature can reach over 700℃, which can cause the stainless steel material to oxidize and turn black. To avoid this blackening, oxygen must be isolated during the welding process. Inert gas protection or welding in a vacuum environment are recommended methods.

[0003] However, in a vacuum environment, the heat conduction is poor. Common vacuum brazing equipment uses radiation heating to heat the product over a wide area, which is slow and can have adverse effects on the fixture and the product. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a multi-station clamping device for vacuum induction precision welding.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a multi-station clamping device for vacuum induction precision welding, including a welding table, a rotating mechanism installed on the welding table, and station clamping devices installed on the rotating surface of the rotating mechanism, with multiple station clamping devices arranged along the outer circumference of the rotating surface.

[0007] Preferably, the rotating mechanism includes a motor rotating mechanism and a turntable. A first fixing plate is provided on the turntable, and a second fixing plate is superimposed on the first fixing plate. The diameter of the first fixing plate is larger than the diameter of the second fixing plate. A positioning groove is formed on the edge of the first fixing plate, and a welding fixing plate is installed in the positioning groove. A pressing mechanism is installed on the second fixing plate. The pressing mechanism and the welding fixing plate below form a workpiece clamping device.

[0008] Preferably, the pressing mechanism includes a first baffle, a second baffle, a compression spring, a pull rod, and a pull hook. The first baffle is fixedly mounted on the second fixed plate. The second baffle is L-shaped. The vertical section of the second baffle is connected to the first baffle. One end of the pull rod slides through the first baffle, and the other end slides through the horizontal section of the second baffle and is connected to the pull hook. The pull rod slides in the vertical direction.

[0009] The compression spring is sleeved on the pull rod. One end of the compression spring is connected to the horizontal section of the second baffle, and the other end is connected to the pull rod. The compression spring is positioned between the horizontal sections of the first baffle and the second baffle.

[0010] Preferably, the motor rotation mechanism includes a motor controller, a motor, and a flat key. The motor controller is mounted on the welding table and is electrically connected to the motor. The motor is also mounted on the welding table. The turntable is connected to the motor via the flat key. A first fixing plate is overlapped and connected to the turntable.

[0011] Preferably, the first baffle is fixedly assembled onto the second fixed plate by a first screw.

[0012] Preferably, the pull rod includes a pressing head and an annular stop block. The pressing head slides through the horizontal sections of the first and second baffles. The vertically upward end of the pressing head is connected to the pull hook. The annular stop block is fixedly sleeved on the pressing head and is also placed between the gaps of the horizontal sections of the first and second baffles. The end of the compression spring away from the horizontal section of the second baffle is fixedly connected to the annular stop block.

[0013] Preferably, the turntable is provided with a cylinder, and the center of the first fixing plate and the second fixing plate are both provided with a circular hole, and the cylinder passes through the two circular holes.

[0014] Preferably, the first fixing plate and the second fixing plate are fixedly connected to the turntable by pins.

[0015] The beneficial effects of this utility model are as follows: the welding product is placed in the positioning groove, and the welding product is fixed in the positioning groove by the pressing mechanism, so that the position of the welding product does not shift. At the same time, the motor controller controls the motor to drive the turntable to rotate, which in turn drives the first fixing plate and the second fixing plate to rotate, moving the welding product to the local heating area. Multiple positioning grooves are set on the first fixing plate to place multiple welding products. It can realize the automated welding of multiple welding products at one time, or the automated welding of one welding product at a time, improve the accuracy of the welding position of the welding product, and accelerate the local heating speed, thereby improving the welding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This utility model is mainly used to show the side view structure of motors, turntables, flat keys and cylinders;

[0018] Figure 3 This is a top view of the structure of the present invention, which is mainly used for structures such as pin holes;

[0019] Figure 4 This utility model is mainly used to show a partial structural diagram of the first fixing plate;

[0020] Figure 5 This utility model is mainly used to show some structural diagrams of the first fixing plate and the second fixing plate, etc.

[0021] Figure 6 This utility model is mainly used to show a partial structural diagram of the pressing mechanism;

[0022] Figure 7 This utility model is mainly used to show a partial structural diagram of the pull rod;

[0023] Figure 8 This utility model is mainly used to show some structural diagrams of the pressing mechanism, the first fixing plate, and the second fixing plate.

[0024] Explanation of reference numerals in the attached drawings: 1-Welding table; 2-Motor controller; 3-Motor rotation mechanism; 4-First fixing plate; 5-Second fixing plate; 6-Pressing mechanism; 7-Welded product; 8-Motor; 9-Turntable; 10-Flat key; 11-Pin hole; 12-Cylinder; 13-Positioning groove; 14-Pin; 15-Pressing head; 16-First baffle; 17-Second baffle; 18-Second screw; 19-Hook; 20-Compression spring; 21-First screw; 22-Welding fixing plate; 23-Diaphragm; 24-Annular stop; 25-Pull rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In the embodiments of this application, reference is made to Figure 1 and Figure 2 It includes a welding table 1, on which a rotating mechanism is installed, and a station clamping device is installed on the rotating surface of the rotating mechanism. Multiple station clamping devices are arranged along the outer circumference of the rotating surface.

[0028] Reference Figure 1 and Figure 2The rotating mechanism includes a motor rotating mechanism 3 and a turntable 9. The motor rotating mechanism 3 includes a motor controller 2, a motor 8, and a key 10. The motor controller 2 is fixedly connected to the side of the welding table 1 and is electrically connected to the motor 8. The motor 8 is fixedly connected to the plane of the welding table 1. A key 10 is provided between the turntable 9 and the motor 8. The key 10 fixes the turntable 9 to the motor 8. The motor controller 2 controls the motor 8 to start, thereby driving the turntable 9 to rotate.

[0029] In the embodiments of this application, reference is made to Figure 2 , Figure 3 , Figure 4 and Figure 5 A first fixing plate 4 is stacked on the turntable 9, and a second fixing plate 5 is stacked on the first fixing plate 4. Both the first fixing plate 4 and the second fixing plate 5 are disc-shaped, and the diameter of the first fixing plate 4 is larger than the diameter of the second fixing plate 5. A cylinder 12 is fixedly connected to the turntable 9. A circular hole is opened in the center of both the first fixing plate 4 and the second fixing plate 5. The cylinder 12 passes through the two circular holes, so that the first fixing plate 4 and the second fixing plate 5 are limited on the turntable 9. At the same time, two pin holes 11 are opened on the first fixing plate 4, the second fixing plate 5 and the turntable 9. By passing two pins 14 through the pin holes 11 of the first fixing plate 4, the second fixing plate 5 and the turntable 9, the first fixing plate 4, the second fixing plate 5 and the turntable 9 are fixedly connected.

[0030] In the embodiments of this application, reference is made to Figure 1 , Figure 4 and Figure 7 Meanwhile, a ring of positioning grooves 13 is opened on the edge of the first fixed plate 4. Multiple positioning grooves 13 are provided and are evenly distributed along the outer circumference of the first fixed plate 4. Welding fixed plates 22 are installed in the positioning grooves 13. A diaphragm 23 is placed on the welding fixed plate 22. The welding fixed plate 22 and the diaphragm 23 together form the welding product 7, which facilitates precise welding of the welding product 7.

[0031] In the embodiments of this application, reference is made to Figure 1 , Figure 5 and Figure 6The second fixed plate 5 is provided with a pressing mechanism 6. The pressing mechanism 6 and the welding fixed plate 22 below form a workpiece clamping device. There are multiple sets of pressing mechanisms 6, and each set of pressing mechanisms 6 corresponds to a multiple positioning groove 13. The pressing mechanism 6 includes a first baffle 16, a second baffle 17, a compression spring 20, a pull rod 25 and a pull hook 19. The first fixed plate 4 has a first mounting hole, and the second fixed plate 5 also has a second mounting hole. The first baffle 16 is threaded into the first mounting hole and the second mounting hole by a first screw 21, so that the first baffle 16 is fixed to the surface of the second fixed plate 5. The second baffle 17 is "L" shaped. The vertical section of the second baffle 17 is fixedly connected to the first baffle 16 by a second screw 18, so that a gap is formed between the horizontal sections of the first baffle 16 and the second baffle 17.

[0032] The pull rod 25 includes a pressing head 15 and an annular stop 24. The annular stop 24 is fixedly sleeved on the pressing head 15. A limiting hole is opened on the first baffle 16. One end of the pressing head 15 slides through the limiting hole, and the other end slides through the horizontal section of the second baffle 17 and is connected to the pull hook 19, so that the pressing head 15 slides in the vertical direction. The annular stop 24 is placed between the gap of the horizontal section of the first baffle 16 and the second baffle 17 to limit the pressing head 15.

[0033] A compression spring 20 is sleeved on the pressing head 15. One end of the compression spring 20 is connected to the horizontal section of the second baffle 17, and the other end is connected to the annular stop block 24. The pressing head 15 in each group is aligned with the corresponding positioning groove 13. The pressing head 15 is pressed against the positioning groove 13 by the force of the compression spring 20.

[0034] The hook 19 pulls the pressing head 15 upward, placing the welding fixing plate 22 and diaphragm 23 in the positioning groove 13. The hook 19 is released, causing the compression spring 20 to pull the pressing head 15 downward by its own force, and it comes into contact with the welding fixing plate 22 and diaphragm 23, so that the pressing head 15 positions and fixes the welding fixing plate 22 and diaphragm 23 in the positioning groove 13. The turntable 9 is rotated to move the welding fixing plate 22 and diaphragm 23 in the same positioning groove 13 to the local heating area for heating and welding of the welding fixing plate 22 and diaphragm 23.

[0035] The working principle of this embodiment is as follows: A diaphragm 23 is placed on each welding fixing plate 22, and then the welding fixing plates 22 with the diaphragm 23 are placed in multiple positioning slots 13. At the same time, the pressing head 15 is pushed by the compression spring 20 to position and press the welding fixing plates 22 in the multiple positioning slots 13, so that the position of the welding product 7 does not shift. Meanwhile, the motor controller 2 controls the motor 8 to run, which drives the turntable 9 to rotate, thereby driving the first fixing plate 4 and the second fixing plate 5 to rotate, moving the welding product 7 to the local heating area. This can realize the automated welding of multiple welding products 7 at one time, or the automated welding of one welding product 7 at a time, improving the accuracy of the welding position of the welding product 7, and accelerating the local heating speed, thereby improving the welding efficiency.

[0036] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A multi-station clamping device for vacuum induction precision welding, characterized in that: The device includes a welding table (1), on which a rotating mechanism is installed. A station clamping device is installed on the rotating surface of the rotating mechanism, and multiple station clamping devices are arranged along the outer circumference of the rotating surface. The rotating mechanism includes a motor rotating mechanism (3) and a turntable (9). A first fixing plate (4) is provided on the turntable (9), and a second fixing plate (5) is stacked on the first fixing plate (4). The diameter of the first fixing plate (4) is larger than the diameter of the second fixing plate (5). A positioning groove (13) is formed on the edge of the first fixing plate (4), and a welding fixing plate (22) is installed in the positioning groove (13). A pressing mechanism (6) is installed on the second fixing plate (5). The pressing mechanism (6) and the welding fixing plate (22) below form a workpiece clamping device. The pressing mechanism (6) includes... Includes a first baffle (16), a second baffle (17), a compression spring (20), a pull rod (25), and a hook (19). The first baffle (16) is fixedly mounted on the second fixed plate (5). The second baffle (17) is L-shaped. The vertical section of the second baffle (17) is connected to the first baffle (16). One end of the pull rod (25) slides through the first baffle (16), and the other end slides through the horizontal section of the second baffle (17) and is connected to the hook (19). The pull rod (25) slides in the vertical direction. The compression spring (20) is sleeved on the pull rod (25). One end of the compression spring (20) is connected to the horizontal section of the second baffle (17), and the other end is connected to the pull rod (25). The compression spring (20) is placed between the horizontal sections of the first baffle (16) and the second baffle (17).

2. A multi-station clamping device for vacuum induction precision welding as claimed in claim 1, characterized in that: The motor rotation mechanism (3) includes a motor controller (2), a motor (8), and a key (10). The motor controller (2) is set on the welding table (1) and is electrically connected to the motor (8). The motor (8) is also set on the welding table (1). The turntable (9) is connected to the motor (8) through the key (10). The first fixing plate (4) is overlapped and connected on the turntable (9).

3. The multi-station clamping device for vacuum induction precision welding as described in claim 1, characterized in that: The first baffle (16) is fixedly mounted on the second fixing plate (5) by the first screw (21).

4. A multi-station clamping device for vacuum induction precision welding as claimed in claim 1, characterized in that: The pull rod (25) includes a pressing head (15) and an annular stop (24). The pressing head (15) slides through the horizontal section of the first baffle (16) and the second baffle (17). The vertically upward end of the pressing head (15) is connected to the hook (19). The annular stop (24) is fixedly sleeved on the pressing head (15). The annular stop (24) is also placed between the gap of the horizontal section of the first baffle (16) and the second baffle (17). The end of the compression spring (20) away from the horizontal section of the second baffle (17) is fixed to the annular stop (24).

5. A multi-station clamping device for vacuum induction precision welding as claimed in claim 1, characterized in that: A cylinder (12) is provided on the turntable (9). The center of the first fixing plate (4) and the second fixing plate (5) are both provided with a circular hole, and the cylinder (12) passes through the two circular holes.

6. A multi-station clamping device for vacuum induction precision welding as claimed in claim 1, characterized in that: The first fixing plate (4) and the second fixing plate (5) are fixedly connected to the turntable (9) by pins (14).

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