Clamping device of brazing machine

Abstract

The utility model discloses a clamping device of a brazing machine. The clamping device comprises a working table, supporting legs are fixedly connected to the four corners of the bottom of the working table, a fixing frame is fixedly connected to the top of the working table through bolts, a clamping mechanism is arranged in the fixing frame, and a containing box is fixedly connected to the position, located at the top of the working table, below the clamping mechanism through bolts. Through the design of the clamping mechanism and the lifting mechanism, the process that in a traditional mode, a workpiece needs to be stably clamped through tools such as a vice manually is avoided, time and manpower needed for clamping the workpiece are saved, therefore, the overall working efficiency is improved, a brazing plate can stably descend to a weld joint, and the welding quality is improved. The welding work efficiency is further improved; through the design of the reciprocating mechanism, gear transmission and synchronous opposite rotation of a half gear are utilized, reciprocating motion of a brazing plate at the position of a welding seam is achieved, the uniformity of welding seam heating is guaranteed, and therefore the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of brazing machine technology, specifically to a clamping device for a brazing machine. Background Technology

[0002] The PMA plasma brazing machine completely replaces traditional brazing equipment, representing a new generation of brazing equipment that eliminates the need for flammable gases. Utilizing IGBT inverter control principles, it provides a highly stable flame during welding. The entire machine is lightweight and convenient, making it suitable for outdoor welding. Operation is simple; anyone with basic welding knowledge can operate it without special training. This product eliminates the need for flammable and explosive gases such as acetylene, significantly improving safety. It requires only electricity, making it particularly advantageous in underdeveloped areas (where oxygen, acetylene, or gasoline are unavailable). During welding, gaseous flux can be used directly instead of the traditional manual addition of borax, improving the wettability and fluidity of the brazed weld and reducing porosity. This enhances the tensile strength of the weld, and the surface exhibits no oxidation or blackening during the welding process. Acid pickling is unnecessary, greatly improving welding efficiency. However, existing brazing machines are not always convenient to use, often resulting in the clamping device melting due to excessive heat, and cooling is not possible after brazing.

[0003] However, in practical applications, operators often need to use pliers to hold the workpiece firmly for a long time without interruption in order to ensure the accuracy and stability of the welding process, and the weld seam is prone to uneven heating during the welding process. Utility Model Content

[0004] To solve the above-mentioned technical problems, a clamping device for a brazing machine is provided. This technical solution addresses the problem mentioned in the background art that in practical applications, operators often need to use pliers to firmly clamp the workpiece for a long time without interruption to ensure the accuracy and stability of the welding process, and that uneven heating of the weld is easily caused during the welding process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A clamping device for a brazing machine includes a worktable. Support legs are fixedly connected to the four corners of the bottom of the worktable. A fixed frame is fixedly connected to the top of the worktable by bolts. A clamping mechanism is installed inside the fixed frame. A placement box is fixedly connected to the clamping mechanism below and at the top of the worktable by bolts. A vertical plate is also fixedly connected to the top of the worktable. Two sets of fixing blocks are fixedly connected to the front side of the vertical plate. A lifting mechanism is installed between the two sets of fixing blocks. A connecting plate is fixedly connected to the outer surface of the lifting mechanism. An installation groove is formed on the outer surface of the connecting plate, and a reciprocating mechanism is installed inside the installation groove.

[0007] Preferably, the clamping mechanism includes a double-ended lead screw rotatably connected inside a fixed frame. A drive motor is fixedly installed on the right side of the fixed frame. The output end of the drive motor extends into the interior of the fixed frame and is fixedly connected to one end of the double-ended lead screw. Two sets of fixed rods are also fixedly connected inside the fixed frame. The two sets of fixed rods are symmetrically distributed on opposite sides of the double-ended lead screw. Movable blocks are threadedly connected to opposite sides of the outer circumference of the double-ended lead screw. The movable blocks are slidably connected to both sets of fixed rods. Clamping plates are fixedly connected to the outer surface of the movable blocks.

[0008] Preferably, the lifting mechanism includes a threaded rod rotatably connected between two sets of fixed blocks. A second drive motor is fixedly installed on the top of the upper fixed block. The output end of the second drive motor extends between the two sets of fixed blocks and is fixedly connected to one end of the threaded rod. Two sets of sliding rods are also fixedly connected between the two sets of fixed blocks. The two sets of sliding rods are symmetrically distributed on the left and right sides of the threaded rod. A movable block is threadedly connected to the outer circumferential surface of the threaded rod. The movable block is slidably connected to both sets of sliding rods. The front side of the movable block is fixedly connected to a connecting plate.

[0009] Preferably, the reciprocating mechanism includes a drive motor three fixedly installed inside the mounting slot, a cavity block one fixedly connected to the front side of the connecting plate, a gear one and a gear two disposed inside the cavity block one, the output end of the drive motor three extending into the cavity block one and fixedly connected to the middle of the gear one, the gear one and the gear two meshing, a fixed column one rotatably connected to the rear side of the gear two, and the fixed column one fixedly connected to the interior of the cavity block one.

[0010] Preferably, a fixing post 2 is fixedly connected to the front middle of both gear 1 and gear 2, and the other end of each fixing post 2 extends to the front of the cavity block 1 and is fixedly connected to a half gear. A cavity block 2 is fixedly connected to the front of the cavity block 1, and a toothed plate is slidably connected inside the cavity block 2. The toothed plate is meshed with both sets of half gears.

[0011] Preferably, a through groove is provided on the front side of the cavity block two, and a brazing plate is fixedly installed on the front side of the toothed plate.

[0012] Compared with the prior art, the present invention provides a clamping device for a brazing machine, which has the following advantages:

[0013] 1. This utility model, through the design of the clamping mechanism and the lifting mechanism, avoids the process of manually using tools such as pliers to firmly clamp the workpiece in the traditional method, saving the time and manpower required for clamping the workpiece, thereby improving the overall work efficiency. It can also make the brazing plate descend smoothly to the weld, further improving the welding work efficiency.

[0014] 2. This utility model, through the design of a reciprocating mechanism, utilizes gear transmission and the synchronous opposite rotation of half gears to realize the reciprocating motion of the brazing plate at the weld position, ensuring the uniformity of weld heating and thus improving the welding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping mechanism of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the lifting mechanism of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of part of the reciprocating mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the remaining reciprocating mechanism of this utility model.

[0020] The numbers on the map are:

[0021] 1. Workbench; 2. Support legs; 3. Mounting frame;

[0022] 4. Clamping mechanism; 401. Double-ended lead screw; 402. Drive motor one; 403. Fixed rod; 404. Movable block; 405. Clamping plate;

[0023] 5. Placement box; 6. Vertical board; 7. Fixing block;

[0024] 8. Lifting mechanism; 801. Threaded rod; 802. Drive motor II; 803. Slide rod; 804. Moving block;

[0025] 9. Connecting plate; 901. Mounting slot;

[0026] 10. Reciprocating mechanism; 1001. Drive motor three; 1002. Cavity block one; 1003. Gear one; 1004. Gear two; 1005. Fixed column one; 1006. Fixed column two; 1007. Half gear; 1008. Cavity block two; 1009. Gear plate; 1010. Through slot; 1011. Brazing plate. Detailed Implementation

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0028] Please refer to Figures 1 to 5As shown, a clamping device for a brazing machine includes a worktable 1. Support legs 2 are fixedly connected to the four corners of the bottom of the worktable 1. A fixed frame 3 is fixedly connected to the top of the worktable 1 by bolts. A clamping mechanism 4 is provided inside the fixed frame 3. A placement box 5 is fixedly connected to the clamping mechanism 4 below and at the top of the worktable 1 by bolts. The clamping mechanism 4 includes a double-ended lead screw 401 rotatably connected inside the fixed frame 3. A drive motor 402 is fixedly installed on the right side of the fixed frame 3. The output end of the drive motor 402 extends into the interior of the fixed frame 3 and is fixedly connected to one end of the double-ended lead screw 401. Two sets of fixed rods 403 are also fixedly connected inside the fixed frame 3. The two sets of fixed rods 403 are symmetrically distributed on opposite sides of the double-ended lead screw 401. Movable blocks 404 are threadedly connected to opposite sides of the outer circumference of the double-ended lead screw 401. The movable blocks 404 are slidably connected to the two sets of fixed rods 403. Clamping plates 405 are fixedly connected to the outer surface of the movable blocks 404.

[0029] In this solution, the workpiece to be processed is first placed inside the placement box 5. Then, the drive motor 402 is turned on, which drives the double-headed lead screw 401 to rotate. Then, the movable blocks 404 on both sides are brought closer by the guidance of the two sets of fixed rods 403. When the movable blocks 404 on both sides are close, the workpiece inside the placement box 5 can be clamped and fixed by the clamping plates 405 on both sides. This avoids the problem that the user still needs to use pliers to firmly clamp the workpiece, which is time-consuming and laborious.

[0030] A vertical plate 6 is fixedly connected to the top of the workbench 1. Two sets of fixed blocks 7 are fixedly connected to the front side of the vertical plate 6. A lifting mechanism 8 is provided between the two sets of fixed blocks 7. The lifting mechanism 8 includes a threaded rod 801 rotatably connected between the two sets of fixed blocks 7. A second drive motor 802 is fixedly installed on the top of the upper fixed block 7. The output end of the second drive motor 802 extends to the space between the two sets of fixed blocks 7 and is fixedly connected to one end of the threaded rod 801. Two sets of sliding rods 803 are also fixedly connected between the two sets of fixed blocks 7. The two sets of sliding rods 803 are symmetrically distributed on the left and right sides of the threaded rod 801. A moving block 804 is threadedly connected to the outer circumferential surface of the threaded rod 801. The moving block 804 is slidably connected to both sets of sliding rods 803. The front side of the moving block 804 is fixedly connected to the connecting plate 9.

[0031] In this scheme, after the workpiece to be processed is clamped and fixed, the second drive motor 802 is turned on. The second drive motor 802 drives the threaded rod 801 to rotate, and the moving block 804 is lowered by the guidance of the two sets of sliding rods 803. Then, the reciprocating mechanism 10 is driven by the connecting plate 9 to reach the welding position of the workpiece to be processed, so as to stably enter the next process.

[0032] A mounting groove 901 is formed on the outer surface of the connecting plate 9. A reciprocating mechanism 10 is arranged inside the mounting groove 901. The reciprocating mechanism 10 includes a drive motor 1001 fixedly installed inside the mounting groove 901. A cavity block 1002 is fixedly connected to the front side of the connecting plate 9. A gear 1003 and a gear 2 1004 are arranged inside the cavity block 1002. The output end of the drive motor 1001 extends into the cavity block 1002 and is fixedly connected to the middle of the gear 1003. The gear 1003 meshes with the gear 2 1004. A fixing post 1005 is rotatably connected to the rear side of the gear 2 1004. 1005 is fixedly connected to the interior of cavity block 1002. Gear 1003 and gear 2 1004 are both fixedly connected to the front middle of a fixing post 2 1006. The other end of the fixing post 2 1006 extends to the front of cavity block 1002 and is fixedly connected to a half gear 1007. Cavity block 2 1008 is fixedly connected to the front of cavity block 1002. A toothed plate 1009 is slidably connected inside cavity block 2 1008. The toothed plate 1009 is meshed with both sets of half gears 1007. A through groove 1010 is opened on the front of cavity block 2 1008. A brazing plate 1011 is fixedly installed on the front of toothed plate 1009.

[0033] In this scheme, when the reciprocating mechanism 10 reaches the welding position of the workpiece to be processed, the workpiece weld is then welded by the brazing plate 1011. At the same time, the drive motor 1001 is turned on, which drives the gear 1003 to rotate, and then drives the meshing gear 2 1004 to rotate in the opposite direction. When the gear 1 1003 and the gear 2 1004 rotate, they drive the two half gears 1007 to rotate synchronously in opposite directions through the fixed column 2 1006. Since the tooth blocks of the two half gears 1007 are distributed in opposite half rings, the tooth plate 1009 can be driven to reciprocate inside the cavity block 2 1008. The tooth plate 1009 then drives the brazing plate 1011 to reciprocate through the through groove 1010, thereby ensuring uniform heating of the workpiece weld and improving practicality and applicability.

[0034] The working principle and usage process of this device are as follows: First, the workpiece to be processed is placed inside the placement box 5. Then, the drive motor 402 is turned on. The drive motor 402 drives the double-headed lead screw 401 to rotate. Then, through the guidance of the two sets of fixed rods 403, the movable blocks 404 on both sides move closer. When the movable blocks 404 on both sides move closer, the workpiece inside the placement box 5 can be clamped and fixed by the clamping plates 405 on both sides. This avoids the problem that the user still needs to use pliers to firmly clamp the workpiece, which is time-consuming and laborious.

[0035] After the workpiece to be processed is clamped and fixed, the second drive motor 802 is turned on. The second drive motor 802 drives the threaded rod 801 to rotate. The moving block 804 is lowered by the guidance of the two sets of sliding rods 803. Then, the reciprocating mechanism 10 is driven by the connecting plate 9 to reach the welding position of the workpiece to be processed, so as to stably enter the next process.

[0036] When the reciprocating mechanism 10 reaches the welding position of the workpiece to be processed, the workpiece weld is then welded by the brazing plate 1011. At the same time, the drive motor 1001 is turned on, which drives the gear 1003 to rotate, and then drives the meshing gear 2 1004 to rotate in the opposite direction. When the gear 1003 and gear 2 1004 rotate, they drive the two half gears 1007 to rotate synchronously in opposite directions through the fixed column 2 1006. Since the tooth blocks of the two half gears 1007 are distributed in opposite half rings, the tooth plate 1009 can be driven to reciprocate inside the cavity block 2 1008. The tooth plate 1009 then drives the brazing plate 1011 to reciprocate through the through groove 1010, thereby ensuring uniform heating of the workpiece weld and improving practicality and applicability.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a brazing machine, comprising a worktable (1), characterized in that: The bottom four corners of the workbench (1) are fixedly connected with support legs (2). The top of the workbench (1) is fixedly connected with a fixed frame (3) by bolts. The fixed frame (3) is provided with a clamping mechanism (4). Below the clamping mechanism (4) and at the top of the workbench (1), a placement box (5) is fixedly connected with bolts. The top of the workbench (1) is also fixedly connected with a vertical plate (6). The front side of the vertical plate (6) is fixedly connected with two sets of fixing blocks (7). A lifting mechanism (8) is provided between the two sets of fixing blocks (7). A connecting plate (9) is fixedly connected to the outer surface of the lifting mechanism (8). An installation groove (901) is opened on the outer surface of the connecting plate (9). A reciprocating mechanism (10) is provided inside the installation groove (901).

2. The clamping device for a brazing machine according to claim 1, characterized in that: The clamping mechanism (4) includes a double-ended lead screw (401) rotatably connected inside the fixed frame (3). A drive motor (402) is fixedly installed on the right side of the fixed frame (3). The output end of the drive motor (402) extends into the interior of the fixed frame (3) and is fixedly connected to one end of the double-ended lead screw (401). Two sets of fixed rods (403) are also fixedly connected inside the fixed frame (3). The two sets of fixed rods (403) are symmetrically distributed on opposite sides of the double-ended lead screw (401). Movable blocks (404) are threadedly connected to opposite sides of the outer circumference of the double-ended lead screw (401). The movable blocks (404) are slidably connected to both sets of fixed rods (403). Clamping plates (405) are fixedly connected to the outer surface of the movable blocks (404).

3. The clamping device for a brazing machine according to claim 1, characterized in that: The lifting mechanism (8) includes a threaded rod (801) rotatably connected between two sets of fixed blocks (7). A second drive motor (802) is fixedly installed on the top of the upper fixed block (7). The output end of the second drive motor (802) extends between the two sets of fixed blocks (7) and is fixedly connected to one end of the threaded rod (801). Two sets of sliding rods (803) are also fixedly connected between the two sets of fixed blocks (7). The two sets of sliding rods (803) are symmetrically distributed on the left and right sides of the threaded rod (801). A moving block (804) is threadedly connected to the outer circumferential surface of the threaded rod (801). The moving block (804) is slidably connected to both sets of sliding rods (803). The front side of the moving block (804) is fixedly connected to the connecting plate (9).

4. The clamping device for a brazing machine according to claim 1, characterized in that: The reciprocating mechanism (10) includes a drive motor three (1001) fixedly installed inside the mounting slot (901). A cavity block one (1002) is fixedly connected to the front side of the connecting plate (9). A gear one (1003) and a gear two (1004) are arranged inside the cavity block one (1002). The output end of the drive motor three (1001) extends into the cavity block one (1002) and is fixedly connected to the middle part of the gear one (1003). The gear one (1003) meshes with the gear two (1004). A fixed column one (1005) is rotatably connected to the rear side of the gear two (1004). The fixed column one (1005) is fixedly connected to the inside of the cavity block one (1002).

5. The clamping device for a brazing machine according to claim 4, characterized in that: Both gear one (1003) and gear two (1004) are fixedly connected to the middle of their front sides by a fixing post two (1006). The other end of each fixing post two (1006) extends to the front side of cavity block one (1002) and is fixedly connected to a half gear (1007). Cavity block one (1002) is fixedly connected to the front side of cavity block one (1002). A toothed plate (1009) is slidably connected inside cavity block two (1008). The toothed plate (1009) meshes with both sets of half gears (1007).

6. The clamping device for a brazing machine according to claim 5, characterized in that: A through groove (1010) is provided on the front side of the cavity block two (1008), and a brazing plate (1011) is fixedly installed on the front side of the toothed plate (1009).

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