Upper-layer winding bar replication mold

Abstract

The utility model discloses an upper-layer coil bar compound die which comprises a lower die and an extrusion mechanism, an upper die is pressed down along a guide rod through a push plate below an air cylinder, an upper-layer coil bar is extruded in the lower die and the upper die which are provided with protective layers, and then the upper-layer coil bar is heated through a heating bar, so that the upper-layer coil bar is easy to form. Then the heating module is closed, the circulating pump is started, cooling liquid is circularly injected into the cooling pipe, the upper-layer winding bar is cooled and shaped, finally, under the control of the air cylinder, the upper mold is lifted to be tightly attached to the fixing plate, the upper-layer winding bar subjected to reshaping is taken out, and due to the arrangement of the temperature adjusting mechanism, the upper-layer winding bar can be uniformly heated and cooled; the lower mold and the upper mold can correspond more accurately, deviation is avoided, high quality and high performance of the upper-layer winding bar are guaranteed, an insulating layer on the surface of the upper-layer winding bar is protected due to protection of the silica gel protection layer, and adverse effects on the upper-layer winding bar caused by current or an electromagnetic field are better prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine generators, in particular to an upper wire rod duplication die. Background Art

[0002] At present, the generator wire rod is a key component of the hydro-turbine generator. Its quality directly affects the service life of the hydro-turbine generator. In the prior art, the height dimension tooling design of the stator wire rod pressing die adopts the integral processing of the straight line iron and the straight line upper iron, especially the straight line upper iron processing and manufacturing precision and cross-sectional dimensions are high, and the processing difficulty is also very high.

[0003] The existing wire rod replica mold has the following problems when in use: First, in an adjustable stator wire rod pressing device and its processing method with publication number: CN101877518A, although it has an adjustment function, the accuracy of the mold to the mold is not enough, and the deviation of the mold will seriously affect the quality and performance of the coil; Second, the upper wire rod is closer to the rotating shaft of the motor or generator, which makes it easier to affect the entire equipment when generating a magnetic field, so better insulation and protection are required to prevent the current or electromagnetic field from having an adverse effect on it. In the process of pressing and forming the existing upper wire rod replica mold, the pressing of the mold will cause the insulating material and protective layer on the surface of the upper wire rod to be damaged, resulting in the motor being unstable when working. Utility Model Content

[0004] The utility model aims to provide an upper wire rod replica mold to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an upper wire rod replica mold, comprising a lower mold and an extrusion mechanism, an extrusion mechanism is arranged above the lower mold, a protective layer is arranged on the surface of the lower mold, a guide rod is installed at the edge of the lower mold, an upper mold is arranged in the middle of the guide rod, a fixed plate is installed above the guide rod, a cylinder is installed in the middle above the fixed plate, a telescopic rod is installed at the bottom of the cylinder, a push plate is connected to the bottom of the telescopic rod, and temperature control mechanisms are arranged on the left and right sides of the lower mold.

[0006] Preferably, the lower mold and the protective layer are in adhesive connection, the protective layer is made of silicone material, and the lower mold and the protective layer fit tightly.

[0007] Preferably, the lower mold and the guide rods are welded, a total of six groups of the guide rods are provided, and the lower mold and the guide rods are perpendicular to each other.

[0008] Preferably, the guide rod is slidably connected to the upper mold, and the outer diameter of the guide rod matches the size of the through hole of the upper mold.

[0009] Preferably, the fixing plate and the cylinders are connected by screws, and two groups of the cylinders are provided, and the cylinders are symmetrically distributed on both sides along the center line of the fixing plate.

[0010] Preferably, the upper mold and the push plate are connected by screws, and the upper mold and the push plate fit tightly.

[0011] Preferably, the temperature control mechanism includes a heating module, a heating rod, a water outlet pipe, a cooling pipe, a water inlet pipe and a circulating pump. The heating module is installed on the right side of the lower mold, the left end of the heating module is connected to the heating rod, the left side of the lower mold is connected to the water outlet pipe, the right end of the water outlet pipe is connected to the cooling pipe, the front side of the water outlet pipe is provided with a water inlet pipe, and the upper end of the water inlet pipe is connected to the circulating pump.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses a cylinder to push out the telescopic rod, and uses a push plate to press the upper mold down along the guide rod, so that the upper wire rod is squeezed into the lower mold and the upper mold provided with a protective layer. After the upper wire rod is cooled and shaped, the cylinder lifts the upper mold to be close to the fixed plate, and takes out the completed upper wire rod. With the assistance of the guide rod, the lower mold and the upper mold can correspond more accurately to avoid deviation, ensure the high quality and high performance of the upper wire rod, and the silicone protective layer protects the insulating layer on the surface of the upper wire rod, better preventing the current or electromagnetic field from having adverse effects on it;

[0014] 2. The utility model heats the heating rods around the grooves of the lower mold and the upper mold through the heating module, thereby heating the upper wire rod, making the upper wire rod easy to shape. Then the heating module is turned off, the circulation pump is turned on, and the coolant is circulated from the water inlet pipe into the cooling pipes also around the grooves of the lower mold and the upper mold to cool and shape the upper wire rod. Such an arrangement is conducive to uniform heating and cooling of the upper wire rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall top view structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model when viewed from above.

[0017] Figure 3 It is a front view structural schematic diagram of the utility model.

[0018] Figure 4 It is a schematic diagram of the internal structure of the lower mold of the utility model.

[0019] In the figure: 1. lower mold; 2. extrusion mechanism; 201. protective layer; 202. guide rod; 203. upper mold; 204. fixed plate; 205. cylinder; 206. telescopic rod; 207. push plate; 3. temperature control mechanism; 301. heating module; 302. heating rod; 303. water outlet pipe; 304. cooling pipe; 305. water inlet pipe; 306. circulating pump. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figure 1-4 The utility model provides an embodiment: an upper wire rod replica mold, including a lower mold 1 and an extrusion mechanism 2, the extrusion mechanism 2 is arranged above the lower mold 1, the surface of the lower mold 1 is provided with a protective layer 201, a guide rod 202 is installed at the edge of the lower mold 1, an upper mold 203 is arranged in the middle of the guide rod 202, a fixed plate 204 is installed above the guide rod 202, a cylinder 205 is installed in the middle above the fixed plate 204, a telescopic rod 206 is installed at the bottom of the cylinder 205, a push plate 207 is connected to the bottom of the telescopic rod 206, and a temperature adjustment mechanism 3 is arranged on the left and right sides of the lower mold 1.

[0022] The lower mold 1 and the protective layer 201 are connected by adhesive. The protective layer 201 is made of silicone. The lower mold 1 fits tightly to the protective layer 201. The silicone material is soft and elastic, which helps to protect the surface insulation layer of the upper wire rod from damage and reduce the direct stress on the surface of the upper wire rod during extrusion.

[0023] The lower mold 1 is welded to the guide rods 202 . There are six groups of guide rods 202 . The lower mold 1 and the guide rods 202 are perpendicular to each other. The fixed connection between the guide rods 202 and the lower mold 1 provides a stable foundation for the sliding of the upper mold 203 .

[0024] The guide rod 202 is slidably connected to the upper mold 203. The outer diameter of the guide rod 202 matches the through hole size of the upper mold 203. The guide rod 202 makes the upper mold 203 correspond precisely to the lower mold 1 to avoid deviations that affect the quality and performance of the upper wire rod.

[0025] The fixing plate 204 and the cylinder 205 are connected by screws. There are two groups of cylinders 205, which are symmetrically distributed on both sides along the center line of the fixing plate 204. Applying pressure on both sides of the upper mold 203 at the same time can make the upper wire rods more evenly squeezed.

[0026] The upper mold 203 and the push plate 207 are connected by screws, and the upper mold 203 and the push plate 207 fit tightly together. The contraction of the cylinder 205 is transmitted to the upper mold 203 through the push plate 207, thereby controlling the upper mold 203 to be lifted up and pressed down.

[0027] The temperature control mechanism 3 includes a heating module 301, a heating rod 302, a water outlet pipe 303, a cooling pipe 304, a water inlet pipe 305 and a circulating pump 306. The heating module 301 is installed on the right side of the lower mold 1, the left end of the heating module 301 is connected to the heating rod 302, the left side of the lower mold 1 is connected to the water outlet pipe 303, the right end of the water outlet pipe 303 is connected to the cooling pipe 304, the front side of the water outlet pipe 303 is provided with a water inlet pipe 305, and the upper end of the water inlet pipe 305 is connected to the circulating pump 306. The upper wire rod is easy to form by heating, and the upper wire rod is fixed by cooling.

[0028] Working principle: First, the telescopic rod 206 is pushed out by the cylinder 205 in the extrusion mechanism 2, and the upper mold 203 is pressed down along the guide rod 202 by the push plate 207 to squeeze the upper wire rod into the lower mold 1 and the upper mold 203 provided with the protective layer 201, and then the heating module 301 in the temperature control mechanism 3 is turned on, and the heating rod 302 surrounds the grooves of the lower mold 1 and the upper mold 203 to heat the upper wire rod, so that the upper wire rod is easy to form, and then the heating module 301 is turned off, and the circulating pump 306 is turned on to inject the coolant from the water inlet pipe 305 into the cooling pipe 304 which also surrounds the grooves of the lower mold 1 and the upper mold 203, and then returns to the circulating pump 306 along the water outlet pipe 303 for continuous circulation to cool and shape the upper wire rod, and finally, under the control of the cylinder 205, the upper mold 203 is lifted to be close to the fixed plate 204, and the upper wire rod that has completed the replication is taken out.

[0029] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. The upper wire rod replica mold comprises a lower mold (1) and an extrusion mechanism (2), characterized in that: An extrusion mechanism (2) is arranged above the lower mold (1), a protective layer (201) is arranged on the surface of the lower mold (1), a guide rod (202) is installed on the edge of the lower mold (1), an upper mold (203) is arranged in the middle of the guide rod (202), a fixed plate (204) is installed above the guide rod (202), a cylinder (205) is installed in the middle above the fixed plate (204), a telescopic rod (206) is installed at the bottom of the cylinder (205), and a push plate (207) is connected to the bottom of the telescopic rod (206), and a temperature adjustment mechanism (3) is arranged on the left and right sides of the lower mold (1).

2. The upper wire rod replica mold according to claim 1, characterized in that: The lower mold (1) and the protective layer (201) are in adhesive connection, the protective layer (201) is made of silicone material, and the lower mold (1) and the protective layer (201) are tightly fitted.

3. The upper wire rod replica mold according to claim 1, characterized in that: The lower mold (1) and the guide rods (202) are welded, a total of six groups of the guide rods (202) are provided, and the lower mold (1) and the guide rods (202) are perpendicular to each other.

4. The upper wire rod replica mold according to claim 1, characterized in that: The guide rod (202) is slidably connected to the upper mold (203), and the outer diameter of the guide rod (202) matches the size of the through hole of the upper mold (203).

5. The upper wire rod replica mold according to claim 1, characterized in that: The fixing plate (204) and the cylinder (205) are connected by screws. Two groups of the cylinders (205) are provided. The cylinders (205) are symmetrically distributed on both sides along the center line of the fixing plate (204).

6. The upper wire rod replica mold according to claim 1, characterized in that: The upper mold (203) and the push plate (207) are connected by screws, and the upper mold (203) and the push plate (207) are tightly fitted.

7. The upper wire rod replica mold according to claim 1, characterized in that: The temperature control mechanism (3) comprises a heating module (301), a heating rod (302), a water outlet pipe (303), a cooling pipe (304), a water inlet pipe (305) and a circulating pump (306); the heating module (301) is installed on the right side of the lower mold (1); the left end of the heating module (301) is connected to the heating rod (302); the left side of the lower mold (1) is connected to the water outlet pipe (303); the right end of the water outlet pipe (303) is connected to the cooling pipe (304); the front side of the water outlet pipe (303) is provided with a water inlet pipe (305); the upper end of the water inlet pipe (305) is connected to the circulating pump (306).

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