Axle box body casting mold

Abstract

The utility model discloses an axle box body casting mold which comprises a fixed mold, a movable mold is arranged on the upper side of the fixed mold, a forming cavity is formed in the upper surface of the fixed mold, a forming cavity is also formed in the lower surface of the movable mold, an ejector pin seat is connected to the interior of the fixed mold in a sliding mode, ejector pins are connected to the interiors of mounting holes formed in the ejector pin seat in a sliding mode, and the axle box body casting mold further comprises a mounting mechanism. The mounting mechanism comprises limiting grooves, limiting blocks and springs, the limiting grooves are formed in the lower sides of the outer surfaces of the ejector pins, the limiting blocks are fixedly connected to the inner walls of the mounting holes, and the limiting blocks are slidably connected into the vertically adjacent limiting grooves. The limiting groove is matched with the limiting block, the ejector pin is fixed and limited, the bolt does not need to be disassembled frequently when the ejector pin is assembled and disassembled, the operation process is simple, and the disassembling and assembling efficiency of the ejector pin is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle box production equipment technical field, concretely is a kind of axle box casting mould. BACKGROUND

[0002] Axle box is the key component of the bogie of train and other rail vehicles, for containing axle journal and other parts, bearing load and storing axle oil, axle box is not only the component that transfers load from frame to axle journal, but also needs to bear the load of jack from bottom when bearing is maintained and replaced, so it requires sufficient strength, axle box is usually produced using axle box casting mould;

[0003] The existing axle box casting mould makes through the cavity in mould, molten metal or other materials are injected therein, then the required product is formed through cooling and solidification process, and the formed axle box is ejected using ejector pin;

[0004] The existing axle box casting mould needs to use ejector pin to eject when axle box is produced, the precision and stability of ejector pin will decrease after using a period of time, which affects the normal operation of mould and product quality, the ejector pin needs to be replaced regularly, the ejector pin is usually fixed using bolt and ejector pin holder, the bolt needs to be frequently disassembled when the ejector pin is replaced and maintained, and the disassembly process is relatively cumbersome, therefore, we propose a kind of axle box casting mould. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a kind of axle box casting mould, by installing mechanism, the ejector pin is fixed and installed, using limiting slot and limiting block cooperate, the ejector pin is fixed and limited, when the ejector pin is installed and disassembled, bolt does not need to be frequently disassembled, the operation process is simple, the disassembly and installation efficiency of ejector pin is improved, the problems in the background art can be effectively solved.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of axle box casting mould, including fixed mould, the upper side of the fixed mould is equipped with movable mould, the upper surface of fixed mould is provided with forming cavity, the lower surface of movable mould is also provided with forming cavity, the inside of fixed mould is slidably connected with ejector pin holder, the inside of ejector pin holder is provided with the installation hole that is slidably connected with ejector pin in each;

[0007] The installation mechanism comprises a limiting groove, a limiting block and a spring, the limiting groove is arranged on the lower side of the outer surface of the ejector pin, the limiting blocks are fixedly connected to the inner walls of the mounting holes, the limiting blocks are slidably connected to the vertically adjacent limiting grooves, and the springs are fixedly connected between the lower surface of the ejector pin and the inner wall of the ejector pin seat.

[0008] Further, the upper surface of the fixed mold is provided with uniformly distributed limiting holes, and the lower surface of the movable mold is fixedly connected with uniformly distributed limiting columns, the limiting columns are inserted into the vertically adjacent limiting holes, and the fixed mold is guided and limited.

[0009] Further, the inner walls between the ejector pin seat and the fixed mold are fixedly connected with return springs, and the return springs are sleeved on the outer surface of the ejector pin, so that the ejector pin is automatically reset after being ejected.

[0010] Further, the lower surface of the ejector pin seat is fixedly connected with a fixing rod, so as to facilitate the movement of the ejector pin seat.

[0011] Further, the upper surface of the movable mold is provided with symmetrically distributed pouring openings, and the pouring openings are in communication with the upper side of the forming cavity, and the molten metal liquid is injected into the forming cavity.

[0012] Further, the inner left sides of the fixed mold and the movable mold are provided with liquid inlet pipes, the inner right sides of the fixed mold and the movable mold are provided with liquid outlet pipes, and the liquid inlet pipes and the liquid outlet pipes are provided with liquid conveying pipes between the horizontally adjacent liquid inlet pipes and liquid outlet pipes, so that the cooling liquid flows in the mold, and the metal liquid in the forming cavity is cooled.

[0013] Further, the upper surface of the fixed mold and the lower surface of the movable mold are respectively provided with gas outlet grooves, and the gas outlet grooves are in communication with the horizontally adjacent forming cavities, and the gas in the forming cavity is discharged.

[0014] Compared with the prior art, the shaft box casting mold has the following advantages:

[0015] The installation mechanism is used for fixedly installing the ejector pin, the limiting groove and the limiting block are used for limiting the ejector pin, the ejector pin does not need to be frequently disassembled and assembled, the operation process is simple, and the disassembly and assembly efficiency of the ejector pin is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model structural schematic diagram is shown in the figure;

[0017] Figure 2The cross-sectional structure schematic view of the utility model is shown in the figure.

[0018] Figure 3 The enlarged structure schematic view of the utility model is shown at A.

[0019] Figure 4 The front view cross-sectional structure schematic view of the utility model is shown in the figure.

[0020] Figure 5 The thimble structure schematic view of the utility model is shown in the figure.

[0021] In the figure: 1 fixed mold, 2 movable mold, 3 pouring opening, 4 forming cavity, 5 thimble base, 6 mounting mechanism, 61 limiting groove, 62 limiting block, 63 spring, 7 thimble, 8 return spring, 9 liquid inlet pipeline, 10 liquid outlet pipeline, 11 infusion pipeline, 12 limiting hole, 13 limiting column, 14 fixed rod, 15 air outlet groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5The embodiment provides a technical scheme: a shaft box casting mold, which comprises a fixed mold 1, the upper side of the fixed mold 1 is provided with a movable mold 2, the upper surface of the fixed mold 1 is provided with uniformly distributed limiting holes 12, the lower surface of the movable mold 2 is fixedly connected with uniformly distributed limiting columns 13, the limiting columns 13 are inserted into vertically adjacent limiting holes 12, the limiting columns 13 are inserted into the limiting holes 12, the movable mold 2 is pressed downward, the lower surface of the movable mold 2 is attached to the upper surface of the fixed mold 1, the upper surface of the fixed mold 1 is provided with a forming cavity 4, the lower surface of the movable mold 2 is also provided with a forming cavity, a thimble base 5 is slidably connected in the fixed mold 1, thimbles 7 are slidably connected in mounting holes in the thimble base 5, reset springs 8 are fixedly connected between the thimble base 5 and the inner wall of the fixed mold 1, the reset springs 8 are all sleeved on the outer surfaces of the thimbles 7, a fixed rod 14 is fixedly connected to the lower surface of the thimble base 5, after the metal liquid is cooled and formed, the movable mold 2 is pulled upward, the movable mold 2 is separated from the fixed mold 1, the fixed rod 14 is pushed upward, the fixed rod 14 moves upward and drives the thimble base 5 to move upward, the thimbles 7 move upward, the upper ends of the thimbles 7 are upwardly extruded from the formed shaft box, the reset spring 7 is contracted, after the extrusion is completed, the fixed rod 14 is loosened, the spring 7 is relaxed, the thimble base 5 is reset, the thimbles 7 are reset, the upper surface of the movable mold 2 is provided with symmetrically distributed pouring openings 3, the pouring openings 3 are all connected with the upper forming cavities 4, the metal liquid in a molten state is injected into the inside of the forming cavities 4 through the pouring openings 3, liquid inlet pipes 9 are arranged on the left sides in the fixed mold 1 and the movable mold 2, liquid outlet pipes 10 are arranged on the right sides in the fixed mold 1 and the movable mold 2, liquid conveying pipes 11 are arranged between the transversely adjacent liquid inlet pipes 9 and liquid outlet pipes 10, the outside cooling liquid conveying pipes are connected with the front and rear ends of the liquid inlet pipes 9, the cooling liquid flows into the liquid conveying pipes 11 through the liquid inlet pipes 9, and is discharged through the front and rear ends of the liquid outlet pipes 10, so that the metal liquid in the forming cavities 4 is cooled, the metal liquid is formed, gas outlet grooves 15 are arranged on the upper surface of the fixed mold 1 and the lower surface of the movable mold 2, the gas outlet grooves 15 are all connected with the transversely adjacent forming cavities 4, the gas in the forming cavities 4 is discharged through the gas outlet grooves 15, and the installation mechanism 6 is further arranged;

[0024] The installation mechanism 6 comprises a limiting groove 61, a limiting block 62 and a spring 63, the limiting groove 61 is arranged on the lower side of the outer surface of the ejector pin 7, the limiting blocks 62 are fixedly connected to the inner walls of the installation holes, the limiting blocks 62 are slidingly connected in the vertically adjacent limiting grooves 61, and the springs 63 are fixedly connected between the lower surface of the ejector pin 7 and the inner wall of the ejector pin seat 5; when the ejector pin 7 needs to be replaced or cleaned and maintained, the fixed rod 14 is pushed upwards, the ejector pin 7 is moved upwards into the forming cavity 4, the ejector pin 7 is pressed downwards at this time, the ejector pin 7 is moved downwards, the spring 63 is contracted, when the ejector pin 7 is moved to the appropriate position, the ejector pin 7 is rotated, the limiting block 62 is moved in the transverse part of the limiting groove 61, then the ejector pin 7 is pulled upwards, the limiting block 62 is relatively moved in the limiting groove 61 and then separated, so that the ejector pin 7 is taken out, and then the ejector pin 7 is replaced or cleaned and maintained.

[0025] The working principle of the axle box body casting mold is as follows: when the axle box body is cast by using the axle box body casting mold, the limiting column 13 is inserted into the limiting hole 12, the movable mold 2 is pressed downwards tightly, the lower surface of the movable mold 2 is attached to the upper surface of the fixed mold 1, the molten metal liquid is injected into the inside of the forming cavity 4 through the pouring opening 3, the external cooling liquid conveying pipeline is connected to the front and rear ends of the liquid inlet pipeline 9 in communication, the cooling liquid flows into the liquid conveying pipeline 11 through the liquid inlet pipeline 9, is discharged through the front and rear ends of the liquid outlet pipeline 10, so that the molten metal liquid in the forming cavity 4 is cooled, the molten metal liquid is formed, the gas in the forming cavity 4 is discharged through the gas outlet groove 15, after the molten metal liquid is cooled and formed, the movable mold 2 is pulled upwards, the movable mold 2 is separated from the fixed mold 1, the fixed rod 14 is pushed upwards, the fixed rod 14 is moved upwards and drives the ejector pin seat 5 to move upwards, the ejector pin 7 is moved upwards, the upper end of the ejector pin 7 is pushed out of the formed axle box body, the reset spring 7 is contracted, after the ejection is completed, the fixed rod 14 is loosened, the spring 7 is relaxed, the ejector pin seat 5 is reset, the ejector pin 7 is reset, when the ejector pin 7 needs to be replaced or cleaned and maintained, the fixed rod 14 is pushed upwards, the ejector pin 7 is moved upwards into the forming cavity 4, the ejector pin 7 is pressed downwards at this time, the ejector pin 7 is moved downwards, the spring 63 is contracted, when the ejector pin 7 is moved to the appropriate position, the ejector pin 7 is rotated, the limiting block 62 is moved in the transverse part of the limiting groove 61, then the ejector pin 7 is pulled upwards, the limiting block 62 is relatively moved in the limiting groove 61 and then separated, so that the ejector pin 7 is taken out, and then the ejector pin 7 is replaced or cleaned and maintained.

[0026] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion in the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A shaft box casting mold, comprising a fixed mold (1), the upper side of the fixed mold (1) is provided with a movable mold (2), the upper surface of the fixed mold (1) is provided with a forming cavity (4), the lower surface of the movable mold (2) is also provided with a forming cavity, the inside of the fixed mold (1) is slidably connected with a ejector pin holder (5), the inside of the ejector pin holder (5) is slidably connected with an ejector pin (7) in the mounting hole, characterized in that: Also include installation mechanism (6); The installation mechanism (6) comprises a limiting groove (61), a limiting block (62) and a spring (63), the limiting groove (61) is opened in the lower side of the outer surface of the ejector pin (7), the inner wall of the mounting hole is fixedly connected with the limiting block (62), the limiting block (62) is slidably connected in the vertically adjacent limiting groove (61), and the lower surface of the ejector pin (7) and the inner wall of the ejector pin seat (5) are fixedly connected with the spring (63).

2. The axle housing casting mold of claim 1, wherein: The upper surface of the fixed mold (1) is provided with uniformly distributed limiting holes (12), the lower surface of the movable mold (2) is fixedly connected with uniformly distributed limiting columns (13), and the limiting columns (13) are inserted into the vertically adjacent limiting holes (12).

3. The axle housing casting mold of claim 1, wherein: The inner wall between the ejector pin seat (5) and the fixed mold (1) is respectively fixedly connected with a return spring (8), and the return spring (8) is sleeved on the outer surface of the ejector pin (7).

4. The axle housing casting mold of claim 1, wherein: The lower surface of the ejector pin seat (5) is fixedly connected with a fixed rod (14).

5. The axle housing casting mold of claim 1, wherein: The upper surface of the movable mold (2) is provided with symmetrically distributed pouring openings (3), and the pouring openings (3) are communicated with the upper forming cavities (4).

6. The axle housing casting mold of claim 1, wherein: The left side of the inside of the fixed mold (1) and the movable mold (2) is provided with a liquid inlet pipeline (9), the right side of the inside of the fixed mold (1) and the movable mold (2) is provided with a liquid outlet pipeline (10), and the transversely adjacent liquid inlet pipeline (9) and liquid outlet pipeline (10) are respectively provided with a liquid delivery pipeline (11).

7. The axle housing casting mold of claim 1, wherein: The upper surface of the fixed mold (1) and the lower surface of the movable mold (2) are respectively provided with gas outlet grooves (15), and the gas outlet grooves (15) are communicated with the transversely adjacent forming cavities (4).

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