Die for producing special-shaped fishplate

Abstract

The utility model discloses a mould for producing a special-shaped fishplate, which comprises a base, a screw is in threaded connection with the inside of the base, a clamping block is in threaded connection with the screw, a lower mould is tightly pressed on the clamping block, a water tank is arranged inside the lower mould, and a support frame is fixedly welded on the upper end face of the base. The clamping block is fixed by rotating the screwing bolt, so that the clamping block compresses the lower die, the position of the lower die is conveniently fixed, the guide rod is driven by rotating the screwing bolt to compress the lower die, the upper die can be guided to move when the hydraulic cylinder is started, a wedge block of the upper die is accurately clamped with the lower die, and the situation that accurate die assembly is affected by wedge block lateral deviation is prevented; the threaded rod is rotated to drive the small ball to rotate, so that threaded connection with the upper mold is facilitated, and disassembly and assembly are facilitated; the water inlet pipe is connected with a water source, so that the water tank is filled with water to quickly cool the lower mold, heated water flow is discharged from the water outlet pipe, and the production efficiency of the special-shaped fishplates is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special-shaped fish plate production devices, in particular to a mold for producing special-shaped fish plates. Background Art

[0002] Special-shaped fishplate is a key component of railway track system. It is used for the joint of rails with different rail types. It has large usage and many specifications, but its basic structure and use principle are the same. It just adjusts its external dimensions according to the different rail types connected. Its structure is as follows: Figure 1 As shown. Due to the particularity of its use position, it is related to the safety of train operation, which puts forward higher technical requirements for this product, that is, it has good mechanical properties, such as good impact resistance, shear resistance, wear resistance, etc. The traditional special-shaped fishtail plate is made by casting. Due to the process, its internal structure density is relatively poor compared with rolling and forging, and it is inevitable to have defects such as pores, inclusions, shrinkage holes, etc., and the yield rate is low. At the same time, there are also unfavorable factors such as environmental pollution.

[0003] At present, the special-shaped fishtail plate manufactured by the utility model has higher and more stable comprehensive performance, while reducing production costs and improving production efficiency, which is of great significance in the field of railway and die forging technology.

[0004] For example, the special-shaped fishtail plate forging die disclosed in the authorization number CN205464130U includes an upper die and a lower die, wherein a cavity is provided between the upper die and the lower die, a core is provided in the cavity, the core is fixedly connected to the upper die or the lower die through a wedge, and a lock that cooperates with each other is provided between the upper die and the lower die. However, such a special-shaped fishtail plate forging die is not convenient for the wedge block of the upper die to accurately clamp the lower die, and it is not convenient to quickly cool the lower die.

[0005] It can be seen from the solutions disclosed in the above-mentioned existing patent documents that it is not convenient for the wedge block of the upper mold to accurately clamp the lower mold, and it is not convenient to quickly cool the lower mold. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The utility model aims to provide a mold for producing special-shaped fishtail plates to solve the problems that it is inconvenient for the wedge block of the upper mold to accurately clamp the lower mold and it is inconvenient to quickly cool the lower mold.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for producing special-shaped fishtail plates, comprising a base, a screw is threadedly connected to the inside of the base, a clamping block is threadedly connected to the clamping block, a lower mold is pressed by the clamping block, a water tank is arranged inside the lower mold, a support frame is fixedly welded to the upper end surface of the base, a bolt is threadedly connected to the inside of the support frame, a guide rod is fixedly welded to the lower end of the bolt, a hydraulic cylinder is fixedly installed on the upper end of the support frame, a telescopic rod is installed on the lower end of the hydraulic cylinder, a small ball is slidably sleeved on the lower end of the telescopic rod, the lower end of the small ball is fixedly connected to a threaded rod, the lower end of the threaded rod is threadedly connected to an upper mold, and a wedge is arranged at the lower end of the upper mold.

[0008] Preferably, the upper end surface of the base is in close contact with the clamping block, and the upper end surface of the base is in close contact with the lower mold. The clamping block is fixed by rotating the tightening screw to press the lower mold, thereby facilitating fixing the position of the lower mold.

[0009] Preferably, the lower end of the guide rod presses the lower mold, the upper end surface of the lower mold is tightly attached to the upper mold, and the upper end of the lower mold is clamped with a wedge block. The guide rod is driven to press the lower mold by rotating the tightening bolt, so that when the hydraulic cylinder is started, the upper mold can be guided to move, so that the wedge block of the upper mold can accurately clamp the lower mold, preventing the wedge block from deviating sideways and affecting accurate mold closing.

[0010] Preferably, the lower end of the telescopic rod is slidably connected to the threaded rod, and the outer side of the guide rod is slidably sleeved on the upper mold, and the small ball is driven to rotate by rotating the threaded rod, which facilitates the threaded connection to the upper mold and facilitates disassembly and assembly.

[0011] Preferably, a water inlet pipe is fixedly welded inside the lower mold, and a water outlet pipe is fixedly welded inside the lower mold. By connecting the water inlet pipe to a water source, the water tank is filled with water to quickly cool down the lower mold, and the heated water is discharged from the water outlet pipe, thereby improving the production efficiency of special-shaped fishtail plates.

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

[0013] 1. The upper end surface of the base of the utility model is in close contact with the clamping block, and the upper end surface of the base is in close contact with the lower mold. The clamping block is fixed by rotating the tightening screw to press the lower mold, which is convenient for fixing the position of the lower mold.

[0014] 2. The lower end of the guide rod of the utility model presses the lower mold, the upper end surface of the lower mold is tightly attached to the upper mold, and the upper end of the lower mold is clamped with a wedge. The guide rod is driven to press the lower mold by rotating the tightening bolt, so that when the hydraulic cylinder is started, the upper mold can be guided to move, so that the wedge of the upper mold can accurately clamp the lower mold, preventing the wedge from lateral deviation and affecting accurate mold closing.

[0015] 3. The lower end of the telescopic rod of the utility model is slidably connected to the threaded rod, and the outer side of the guide rod is slidably sleeved on the upper mold. The small ball is driven to rotate by rotating the threaded rod, which is convenient for threading and connecting the upper mold, and is easy to disassemble and assemble.

[0016] 4. The utility model has a water inlet pipe fixedly welded inside the lower mold, and a water outlet pipe fixedly welded inside the lower mold. By connecting the water inlet pipe to a water source, the water tank is filled with water to quickly cool down the lower mold, and the heated water is discharged from the water outlet pipe, thereby improving the production efficiency of special-shaped fishtail plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an enlarged view of point A of the utility model;

[0019] Figure 3 This is an enlarged top view of the card block of the utility model.

[0020] In the figure: 1 base, 11 screws, 12 blocks, 13 lower mold, 14 water tank, 15 water inlet pipe, 16 water outlet pipe, 2 support frame, 21 bolts, 22 guide rods, 23 hydraulic cylinders, 24 telescopic rods, 25 small balls, 26 threaded rods, 27 upper molds, 28 wedges. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-3 A mold for producing a special-shaped fishtail plate shown in the figure includes a base 1, a screw 11 is threadedly connected to the inside of the base 1, a block 12 is threadedly connected to the screw 11, a lower mold 13 is pressed by the block 12, a water tank 14 is arranged inside the lower mold 13, a support frame 2 is fixedly welded to the upper end surface of the base 1, a bolt 21 is threadedly connected to the inside of the support frame 2, a guide rod 22 is fixedly welded to the lower end of the bolt 21, a hydraulic cylinder 23 is fixedly installed on the upper end of the support frame 2, the model of the hydraulic cylinder 23 is MOB, which belongs to the prior art, a telescopic rod 24 is installed at the lower end of the hydraulic cylinder 23, a small ball 25 is slidably sleeved inside the lower end of the telescopic rod 24, a threaded rod 26 is fixedly connected to the lower end of the small ball 25, a threaded rod 26 is threadedly connected to the lower end of the threaded rod 26, and a wedge 28 is arranged at the lower end of the upper mold 27.

[0024] In order to facilitate the wedge block 28 of the upper mold 27 to accurately engage the lower mold 13, the upper end surface of the base 1 is close to the block 12, and the upper end surface of the base 1 is close to the lower mold 13. The block 12 is fixed by rotating the tightening screw 11 to press the lower mold 13, which is convenient for fixing the position of the lower mold 13. The lower end of the guide rod 22 presses the lower mold 13, and the upper end surface of the lower mold 13 is close to the upper mold 27. The upper end of the lower mold 13 is clamped with a wedge block 28. The guide rod 22 is driven by rotating the tightening bolt 21 to press the lower mold 13, so that when the hydraulic cylinder 23 is started, the upper mold 27 can be guided to move, so that the wedge block 28 of the upper mold 27 can accurately engage the lower mold 13 to prevent the wedge block 28 from skewing to the side and affecting accurate mold closing.

[0025] In this embodiment, the clamping block 12 is fixed by rotating the tightening screw 11 so that it presses the lower mold 13, which facilitates fixing the position of the lower mold 13. The guide rod 22 is driven by rotating the tightening bolt 21 to press the lower mold 13, so that when the hydraulic cylinder 23 is started, the upper mold 27 can be guided to move, so that the wedge block 28 of the upper mold 27 can accurately clamp the lower mold 13, preventing the wedge block 28 from deviating to the side and affecting accurate mold closing.

[0026] Example 2

[0027] See also Figure 1-3 The present embodiment further explains Example 1. In the figure, a mold for producing special-shaped fishtail plates includes a base 1. The interior of the base 1 is connected with a screw 11 through a thread. The screw 11 is connected with a clamping block 12 through a thread. The clamping block 12 is pressed with a lower mold 13. The interior of the lower mold 13 is provided with a water tank 14. The upper end surface of the base 1 is fixedly welded with a support frame 2. The interior of the support frame 2 is connected with a bolt 21 through a thread. The lower end of the bolt 21 is fixedly welded with a guide rod 22. The upper end of the support frame 2 is fixedly installed with a hydraulic cylinder 23. The lower end of the hydraulic cylinder 23 is installed with a telescopic rod 24. The lower end of the telescopic rod 24 is slidably sleeved with a small ball 25. The lower end of the small ball 25 is fixedly connected with a threaded rod 26. The lower end of the threaded rod 26 is connected with an upper mold 27 through a thread. The lower end of the upper mold 27 is provided with a wedge block 28.

[0028] In order to facilitate rapid cooling of the lower mold 13, the lower end of the telescopic rod 24 is slidably connected to the threaded rod 26, and the outer side of the guide rod 22 is slidably sleeved on the upper mold 27. The threaded rod 26 is rotated to drive the small ball 25 to rotate, so that the upper mold 27 is conveniently threadedly connected to facilitate disassembly and assembly. The lower mold 13 is fixedly welded with a water inlet pipe 15, and the lower mold 13 is fixedly welded with a water outlet pipe 16. By connecting the water inlet pipe 15 to a water source, the water tank 14 is filled with water to quickly cool down the lower mold 13, and the heated water is discharged from the water outlet pipe 16, thereby improving the production efficiency of special-shaped fishtail plates.

[0029] In this embodiment, the ball 25 is driven to rotate by rotating the threaded rod 26, which is convenient for threaded connection to the upper mold 27 and easy to disassemble and assemble. By connecting the water inlet pipe 15 to a water source, the water tank 14 is filled with water to quickly cool the lower mold 13, and the heated water is discharged from the water outlet pipe 16, thereby improving the production efficiency of special-shaped fishtail plates.

[0030] The mold for producing special-shaped fishtail plates fixes the clamping block 12 by rotating the tightening screw 11 so that the clamping block 12 is pressed against the lower mold 13, which is convenient for fixing the position of the lower mold 13; the tightening bolt 21 is rotated to drive the guide rod 22 to press the lower mold 13, so that when the hydraulic cylinder 23 is started, the upper mold 27 can be guided to move, so that the wedge block 28 of the upper mold 27 can accurately clamp the lower mold 13, and prevent the wedge block 28 from deviating to the side and affecting the accurate mold closing; the threaded rod 26 is rotated to drive the small ball 25 to rotate, which is convenient for threading the upper mold 27 and facilitating disassembly and assembly; the water inlet pipe 15 is connected to the water source, so that the water tank 14 is filled with water to quickly cool the lower mold 13, and the heated water is discharged from the water outlet pipe 16, thereby improving the production efficiency of the special-shaped fishtail plates.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for producing special-shaped fishplates, comprising a base (1), characterized in that: The base (1) is internally connected with a screw (11) through a thread, the screw (11) is threadedly connected with a clamping block (12), the clamping block (12) is pressed with a lower mold (13), the lower mold (13) is provided with a water tank (14), the upper end surface of the base (1) is fixedly welded with a support frame (2), the support frame (2) is internally connected with a bolt (21) through a thread, the lower end of the bolt (21) is fixedly welded with a guide rod (22), the upper end of the support frame (2) is fixedly installed with a hydraulic cylinder (23), the lower end of the hydraulic cylinder (23) is installed with a telescopic rod (24), the lower end of the telescopic rod (24) is slidably sleeved with a small ball (25), the lower end of the small ball (25) is fixedly connected with a threaded rod (26), the lower end of the threaded rod (26) is threadedly connected with an upper mold (27), and the lower end of the upper mold (27) is provided with a wedge block (28).

2. A mold for producing special-shaped fishplates according to claim 1, characterized in that: The upper end surface of the base (1) is in close contact with the clamping block (12), and the upper end surface of the base (1) is in close contact with the lower mold (13).

3. The mold for producing special-shaped fishplate according to claim 1, characterized in that: The lower end of the guide rod (22) presses the lower mold (13), the upper end surface of the lower mold (13) is tightly attached to the upper mold (27), and the upper end of the lower mold (13) is clamped with a wedge block (28).

4. The mold for producing special-shaped fishplate according to claim 1, characterized in that: The lower end of the telescopic rod (24) is slidably connected to the threaded rod (26), and the outer side of the guide rod (22) is slidably sleeved to the upper mold (27).

5. The mold for producing special-shaped fishplate according to claim 1, characterized in that: A water inlet pipe (15) is fixedly welded inside the lower mold (13), and a water outlet pipe (16) is fixedly welded inside the lower mold (13).

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