Exothermic welding die

Abstract

The utility model relates to the technical field of welding, specifically discloses a heat releasing welding mould, including first mould and second mould of first mould one side, the outer wall top of first mould is hinged with mould cover through the hinge, the outer wall of first mould is provided with the opening and closing mechanism for the opening and closing action of first mould and second mould, the outer wall of mould cover is provided with the limiting mechanism for the fixed action of mould cover and second mould. Through first mould, second mould and mould cover constitute a heat releasing welding mould body, through the opening and closing mechanism that sets up, and then effectively realized the opening and closing of first mould and second mould, and when first mould and second mould are closed, through the tension spring under the tension effect, and then avoid the problem that there is a gap when heat releasing welding, cooperate limiting mechanism, and then effectively realized the upper part of first mould and second mould is sealed, avoid the problem of opening when heat releasing.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to an exothermic welding mold. Background Technology

[0002] Exothermic welding molds are specialized refractory molds that utilize the aluminothermic chemical reaction to generate high-temperature molten metal, achieving permanent molecular-level connections between conductors (such as copper cables, copper busbars, grounding rods, etc.). They are typically made of high-temperature resistant graphite or ceramic materials and have a specific cavity structure. During use, the conductors to be connected are cleaned, placed into the corresponding cavity, and clamped. Then, a special exothermic flux (usually containing metal oxides and reducing agent aluminum powder) is filled in. Ignition of the ignition powder triggers a violent exothermic reaction, melting the copper (or other metals) in the flux and allowing it to flow into the cavity. Simultaneously, the molten metal undergoes metallurgical bonding with the conductor surface. After cooling, a high-strength, low-resistance, corrosion-resistant, and integrally welded joint with the same cross-section as the conductor is formed. However, current methods involve clamping two molds together, with the top cover held in place by an F-shaped clamp. This makes the welding process cumbersome and requires carrying many small, disorganized devices, thus affecting work efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an exothermic welding mold that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an exothermic welding mold, comprising a first mold and a second mold on one side of the first mold, wherein a mold cover is hinged to the top of the outer wall of the first mold via a hinge, and the outer wall of the first mold for the second mold is provided with an opening and closing mechanism for opening and closing actions of the first mold and the second mold, and the outer wall of the mold cover is provided with a limiting mechanism for fixing actions of the mold cover and the second mold.

[0005] Furthermore, the opening and closing mechanism includes a connecting plate and a connecting strip. The connecting plate is fixedly connected to the side of the second mold away from the first mold. A fixed cylinder is fixedly connected to the end of the connecting plate. A first pull handle is fixedly connected to the outer wall of the fixed cylinder. The connecting strip is fixedly connected to the side of the first mold away from the second mold. A rotating rod is fixedly connected to the end of the connecting strip. The outer wall of the rotating rod is rotatably connected to the inner wall of the fixed cylinder. A second pull handle is fixedly connected to the outer wall of the rotating rod. A first support block is fixedly connected to the side of the connecting plate near the connecting strip. A second support block is fixedly connected to the side of the connecting strip near the connecting plate. A tension spring is fixedly connected between the sides of the second support block and the first support block that are close to each other.

[0006] Furthermore, there are two connecting bars, which are mirror-symmetrical about the center point of the rotating rod, and there are two tension springs, which are mirror-symmetrical about the horizontal center line of the tension springs.

[0007] Furthermore, the limiting mechanism includes a movable rod, one end of which is rotatably connected to the inside of the mold cover, the outer wall of the movable rod is slidably connected to the outer wall of the sliding plate, a tension spring is fixedly connected between the top of the movable rod and the top of the inner wall of the sliding plate on the side that are close to each other, an L-shaped locking block is fixedly connected to the bottom end of the sliding plate, the U-shaped locking block is fixedly connected to the outer wall of the second mold, and a fixing rod is fixedly connected to the top of the side of the sliding plate that is close to the second mold.

[0008] Furthermore, the cross-section of the movable rod is T-shaped.

[0009] Furthermore, there are two of each of the sliding plate, tension spring, L-shaped locking block, and U-shaped locking block, and they are mirror-symmetrical about the vertical line between the sides of the first mold and the second mold that are close to each other. The two ends of the fixing rod are fixedly connected to the sides of the two sliding plates that are close to each other.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model comprises a first mold, a second mold, and a mold cover to form an exothermic welding mold body. Through the set opening and closing mechanism, the first mold and the second mold can be opened and closed effectively. When the first mold and the second mold are closed, the tension spring prevents gaps during exothermic welding. In conjunction with the limiting mechanism, the top of the first mold and the second mold can be effectively sealed to prevent them from opening during exothermic welding. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional structural schematic diagram of an exothermic welding mold according to the present invention;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of an exothermic welding mold opening and closing mechanism according to the present invention;

[0015] Figure 3 This utility model relates to an exothermic welding mold. Figure 1 A magnified three-dimensional structural diagram at point A in the middle.

[0016] In the picture:

[0017] 1. First mold; 2. Second mold; 3. Mold cover; 4. Opening and closing mechanism; 41. Connecting plate; 42. Fixed cylinder; 43. First handle; 44. Rotating rod; 45. Connecting strip; 46. Second handle; 47. First support block; 48. Second support block; 49. Tension spring; 5. Limiting mechanism; 51. Movable rod; 52. Sliding plate; 53. Tension spring; 54. L-shaped locking block; 55. U-shaped locking block; 56. Fixed rod. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1 to 3 As shown, this utility model provides a technical solution: an exothermic welding mold, including a first mold 1 and a second mold 2 on one side of the first mold 1. A mold cover 3 is hinged to the top of the outer wall of the first mold 1. An opening and closing mechanism 4 is provided on the outer wall of the first mold 1 for opening and closing the first mold 1 and the second mold 2. A limiting mechanism 5 is provided on the outer wall of the mold cover 3 for fixing the mold cover 3 and the second mold 2.

[0020] Furthermore, the opening and closing mechanism 4 includes a connecting plate 41 and a connecting strip 45. The connecting plate 41 is fixedly connected to the side of the second mold 2 away from the first mold 1. A fixed cylinder 42 is fixedly connected to the end of the connecting plate 41. A first pull handle 43 is fixedly connected to the outer wall of the fixed cylinder 42. The connecting strip 45 is fixedly connected to the side of the first mold 1 away from the second mold 2. A rotating rod 44 is fixedly connected to the end of the connecting strip 45. The outer wall of the rotating rod 44 is rotatably connected to the inner wall of the fixed cylinder 42. A second pull handle 46 is fixedly connected to the outer wall of the rotating rod 44. A first support block 47 is fixedly connected to the side of the connecting plate 41 near the connecting strip 45. A second support block 48 is fixedly connected to the side of the connecting strip 45 near the connecting plate 41. A tension spring 49 is fixedly connected between the side of the second support block 48 and the side of the first support block 47 that are close to each other.

[0021] Furthermore, there are two connecting bars 45, which are mirror-symmetrical about the center point of the rotating rod 44, and there are two tension springs 49, which are mirror-symmetrical about the horizontal center line of the tension springs 49.

[0022] Furthermore, the limiting mechanism 5 includes a movable rod 51, one end of which is rotatably connected to the inside of the mold cover 3, the outer wall of the movable rod 51 is slidably connected to the outer wall of the sliding plate 52, a tension spring 53 is fixedly connected between the top of the movable rod 51 and the top of the inner wall of the sliding plate 52 on the side that are close to each other, an L-shaped locking block 54 is fixedly connected to the bottom end of the sliding plate 52, a U-shaped locking block 55 is fixedly connected to the outer wall of the second mold 2, and a fixing rod 56 is fixedly connected to the top of the side of the sliding plate 52 that is close to the second mold 2.

[0023] Furthermore, the cross-section of the movable rod 51 is T-shaped.

[0024] Furthermore, there are two sliding plates 52, tension springs 53, L-shaped locking blocks 54, and U-shaped locking blocks 55, which are mirror-symmetrical about the vertical line between the sides of the first mold 1 and the second mold 2 that are close to each other. The two ends of the fixing rod 56 are fixedly connected to the sides of the two sliding plates 52 that are close to each other.

[0025] The working principle and usage process of this utility model are as follows: First, the first mold 1 and the second mold 2 are brought close to each other, and the second mold 2 is hinged to the top of the first mold 1, thereby effectively forming an exothermic welding mold body.

[0026] The opening and closing mechanism 4 provided on the first mold 1 and the second mold 2 is rotatably connected to the inner wall of the fixed cylinder 42 and the outer wall of the rotating rod 44. When it is necessary to move the first mold 1 and the second mold 2 away from each other, the first handle 43 and the second handle 46 are brought closer together, which makes it easier for the connecting plate 41 and the second support block 48 to open the first mold 1 and the second mold 2. The principle of cross is utilized. When the first handle 43 and the second handle 46 are released, the tension spring 49 between the first support block 47 fixed on the connecting plate 41 and the second support block 48 fixed on the connecting strip 45 is used to pull the first mold 1 and the second mold 2 tightly together.

[0027] Through the limiting mechanism 5, the movable rod 51 is rotatably connected to the mold cover 3, and simultaneously the outer wall of the movable rod 51 is slidably connected to the inside of the sliding plate 52, thus facilitating the shaking of the sliding plate 52. After the mold cover 3 is placed on the first mold 1 and the second mold 2, pressing down the fixing rod 56 causes the two sliding plates 52 to move downwards. This effectively enables the sliding plate 52 to drive the L-shaped locking block 54 downwards. Furthermore, by rotating the sliding plate 52, the L-shaped locking block 54 is locked inside the U-shaped locking block 55. With the help of the tension spring 53 fixed on the movable rod 51, the sliding plate 52 can be pushed upwards. Therefore, the mold cover 3 is effectively fixed to the second mold 2 and the first mold 1, avoiding the problem of opening during heat protection.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An exothermic welding die comprising a first die (1) and a second die (2) on one side of the first die (1), characterized in that: The outer wall top of the first mold (1) is hinged with a mold cover (3) through a hinge, the first mold (1) is provided with an opening and closing mechanism (4) for opening and closing action of the first mold (1) and the second mold (2) for the outer wall of the second mold (2), and the outer wall of the mold cover (3) is provided with a limiting mechanism (5) for fixing action of the mold cover (3) and the second mold (2).

2. A heat dissipating welding die according to claim 1, wherein: The opening and closing mechanism (4) comprises a connecting plate (41), a connecting strip (45), the connecting plate (41) is fixedly connected with the side of the second mold (2) away from the first mold (1), the end of the connecting plate (41) is fixedly connected with a fixed cylinder (42), the outer wall of the fixed cylinder (42) is fixedly connected with a first pull handle (43), the connecting strip (45) is fixedly connected with the side of the first mold (1) away from the second mold (2), the end of the connecting strip (45) is fixedly connected with a rotating rod (44), the outer wall of the rotating rod (44) is rotatably connected with the inner wall of the fixed cylinder (42), the outer wall of the rotating rod (44) is fixedly connected with a second pull handle (46), the side of the connecting plate (41) close to the connecting strip (45) is fixedly connected with a first supporting block (47), the side of the connecting strip (45) close to the connecting plate (41) is fixedly connected with a second supporting block (48), and the second supporting block (48) and the first supporting block (47) are fixedly connected with a tension spring (49) on the side close to each other.

3. A heat dissipating welding die according to claim 2, wherein: The connecting strip (45) is two, and is mirror symmetrical with the center point of the rotating rod (44), and the tension spring (49) is two, and is mirror symmetrical with the center horizontal line of the tension spring (49).

4. A heat dissipating welding die according to claim 3, wherein: The limiting mechanism (5) comprises a movable rod (51), one end of the movable rod (51) is rotatably connected with the inside of the mold cover (3), the outer wall of the movable rod (51) is slidably connected with the outer wall of the sliding plate (52), the top of the movable rod (51) and the inner wall top of the sliding plate (52) are fixedly connected with a tension spring (53) on the side close to each other, the bottom end of the sliding plate (52) is fixedly connected with an L-shaped clamping block (54), the U-shaped clamping block (55) is fixedly connected with the outer wall of the second mold (2), and the side close to the second mold (2) of the sliding plate (52) is fixedly connected with a fixed rod (56).

5. A heat dissipating welding die according to claim 4, wherein: The cross section of the movable rod (51) is "T" shape.

6. A heat dissipating welding die according to claim 5, wherein: The sliding plate (52), the tension spring (53), the L-shaped clamping block (54) and the U-shaped clamping block (55) are two, and are mirror symmetrical with the perpendicular bisector between the first mold (1) and the second mold (2) on the side close to each other, and the two ends of the fixed rod (56) are fixedly connected with the sides close to each other of the two sliding plates (52).

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