Rapid forming die for gearbox

Abstract

The utility model discloses a gear box rapid forming die which comprises a die frame and a top plate fixed at the top end of the die frame, an upper die plate is installed at one end in the die frame in a sliding mode, and an upper gear box casting die is installed at the bottom end of the upper die plate. A pouring inlet allowing molten metal to enter is formed in one side of the surface of the upper gearbox casting mold, a hydraulic cylinder used for pulling the upper mold plate and the upper gearbox casting mold to ascend and descend is installed at the top end of the top plate, an inverted-U-shaped table is fixed to the bottom of the mold frame, and a lower gearbox casting mold is installed at the top end of the inverted-U-shaped table. The gear box workpiece is separated from the inverted-U-shaped table and the lower gear box casting mold, complete separation of the workpiece and the mold is achieved, and therefore workers can lift down the workpiece formed on the lower gear box casting mold conveniently, the difficulty of manual discharging operation is reduced through sufficient separation, and workpiece damage caused by insufficient separation can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a gear box rapid prototyping mold. Background Art

[0002] The casting mold of the metal gearbox plays a vital role in the manufacturing process. This mold not only ensures the precise size and shape of the finished gearbox through its precise cavity shape, thereby ensuring the quality and consistency of the product, but also realizes the mass production of gearboxes by improving production efficiency. This type of mold is mainly composed of upper mold, lower mold, side mold and other parts, which can form a complete cavity to contain and fix liquid metal, so that it can form a gearbox after cooling and solidification. For gearboxes with complex inner cavities, sand cores are also required to assist in molding. The working principle of the entire mold is to use the shape of the cavity to limit the flow and solidification of the molten metal, so as to accurately replicate the required gearbox shape. However, after the current metal gearbox casting mold is separated from the mold, the molded metal gearbox workpiece will be pressed tightly against the lower mold due to its own weight. This pressure makes the contact between the workpiece and the mold closer, and the elastic ejection structure in the lower mold is not enough to completely lift the workpiece upward, which leads to insufficient separation of the metal gearbox workpiece from the lower mold. At this time, it is more difficult for the staff to lift the metal gearbox workpiece from the lower mold, which increases the difficulty of separation and is prone to damage to the workpiece due to improper material removal operation. Utility Model Content

[0003] The purpose of the utility model is to provide a gearbox rapid prototyping mold. After the upper and lower molds are separated, the screw lifting module controls the height of the plug-in separation mechanism, and allows the plug-in separation mechanism to be inserted into the contact surface of the molded workpiece and the lower mold, so that the molded workpiece is fully lifted, prompting the molded workpiece to be completely separated from the lower mold, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gearbox rapid prototyping mold, comprising a mold frame and a top plate fixed at the top of the mold frame, an upper mold plate is slidably installed at one end inside the mold frame, and an upper gearbox casting mold is installed at the bottom end of the upper mold plate, a side of the surface of the upper gearbox casting mold is provided with an inlet for molten metal to enter, a hydraulic cylinder for pulling the upper mold plate and the upper gearbox casting mold up and down is installed at the top of the top plate, an inverted U-shaped platform is fixed at the bottom of the mold frame, and a lower gearbox casting mold is installed at the top of the inverted U-shaped platform, inner plates are fixed on the front and rear outer walls of the inverted U-shaped platform, and a slide plate is slidably installed on the surface of the inner plate, a screw lifting module for controlling the lifting height of the slide plate is provided on one side of the surface of the inner plate, and an insertion and removal separation mechanism for inserting between the molding workpiece and the contact surface of the inverted U-shaped platform is installed at the top of the slide plate.

[0005] Preferably, columns are fixed at the corners of the bottom end of the upper gearbox casting mold, and a column cavity concentric with the column is provided inside the inverted U-shaped platform, and the bottom end of the column extends downward to the inside of the column cavity.

[0006] Preferably, an elastic reset structure is provided inside the inverted U-shaped platform.

[0007] Preferably, the elastic reset structure includes a plurality of equally spaced reset springs installed on the top wall of the inverted U-shaped platform, and a slide table installed together at the bottom ends of the plurality of reset springs. A slide rod is fixed at the top corner position of the slide table, and the top end of the slide rod passes through the outside of the inverted U-shaped platform and is fixedly connected to the bottom end of the lower gear box casting mold.

[0008] Preferably, the screw lifting module includes a right-angle seat fixed to one side of the bottom end of the inner plate, a one-way screw rotatably installed on the surface of the inner plate through a bearing seat, and a servo motor installed at the bottom end of the right-angle seat for driving the one-way screw to rotate. A nut pair is installed at the thread on one end of the surface of the one-way screw, and the surface of the nut pair is connected to the back of the skateboard.

[0009] Preferably, sliding sleeves are fixed on both sides of the back side of the slide plate, and the back side of the sliding sleeves and the surface of the inner plate are slidably matched.

[0010] Preferably, the plug-in and separation mechanism includes two convex platforms fixed on the top of the slide, two rectangular connecting arms slidably installed inside the convex platforms, and a shovel plate integrally formed at the same end of the two rectangular connecting arms, a connecting plate is fixed to the other end of the two rectangular connecting arms, and double-rod cylinders are installed on both sides of the surface of the slide, and the top of the piston rod of the double-rod cylinder is fixedly connected to the back of the connecting plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the gearbox rapid prototyping mold is provided with a screw lifting module, a slide plate and other structures that cooperate with each other, and the plug-in separation mechanism and the gearbox workpiece are lifted upward together, so that the gearbox workpiece is separated from the inverted U-shaped table and the lower gearbox casting mold, and the workpiece and the mold are completely separated, so that it is convenient for the staff to lift the workpiece formed on the lower gearbox casting mold. This sufficient separation reduces the difficulty of manual unloading operations and can also avoid damage to the workpiece caused by insufficient separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 4 It is a side view structural schematic diagram of the utility model;

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the screw rod lifting module of the utility model;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the shovel board of the utility model;

[0018] In the figure: 1. mold frame; 101. slide; 102. slide rod; 103. reset spring; 2. top plate; 3. hydraulic cylinder; 4. upper mold plate; 5. upper gear box casting mold; 501. inlet gate; 6. inverted U-shaped platform; 7. lower gear box casting mold; 8. inner plate; 9. slide plate; 901. sleeve; 10. screw rod lifting module; 1001. right angle seat; 1002. servo motor; 1003. one-way screw rod; 11. plug-in and separation mechanism; 1101. convex platform; 1102. rectangular connecting arm; 1103. connecting plate; 1104. double-rod cylinder; 1105. shovel plate. DETAILED DESCRIPTION

[0019] 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. 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.

[0020] See also Figure 1-6 The utility model provides an embodiment: a gearbox rapid prototyping mold, comprising a mold frame 1 and a top plate 2 fixed on the top of the mold frame 1, an upper mold plate 4 is slidably installed at one end of the mold frame 1, and an upper gearbox casting mold 5 is installed at the bottom of the upper mold plate 4, and an inlet 501 for molten metal to enter is arranged on one side of the surface of the upper gearbox casting mold 5, a hydraulic cylinder 3 for pulling the upper mold plate 4 and the upper gearbox casting mold 5 up and down is installed at the top of the top plate 2, an inverted U-shaped platform 6 is fixed at the bottom of the mold frame 1, and a lower gearbox casting mold 7 is installed at the top of the inverted U-shaped platform 6, an inner plate 8 is fixed on the front and rear outer walls of the inverted U-shaped platform 6, and a slide plate 9 is slidably installed on the surface of the inner plate 8, and a sliding sleeve 901 is fixed on both sides of the back of the slide plate 9, and the back of the sliding sleeve 901 and the surface of the inner plate 8 are slidably matched;

[0021] A screw lifting module 10 for controlling the lifting height of the slide plate 9 is provided on one side of the surface of the inner plate 8, and an insertion and removal separation mechanism 11 for inserting between the molded workpiece and the contact surface of the inverted U-shaped platform 6 is installed on the top of the slide plate 9;

[0022] The staff can install a PLC control panel around the mold to control the electrical parts such as the screw lifting module 10 and the plug-in separation mechanism 11, so that the corresponding functions of the mold can work normally;

[0023] The corners of the bottom of the upper gearbox casting mold 5 are all fixed with columns, and the interior of the inverted U-shaped platform 6 is provided with a column cavity that is concentric with the column, and the bottom of the column extends downward to the interior of the column cavity, and the column cavity and the column improve the docking stability of the upper gearbox casting mold 5 and the inverted U-shaped platform 6;

[0024] The interior of the inverted U-shaped platform 6 is provided with an elastic reset structure, which includes a plurality of reset springs 103 installed on the top wall of the inverted U-shaped platform 6 at equal intervals, and a slide 101 installed together at the bottom ends of the plurality of reset springs 103. A slide bar 102 is fixed at the top corner of the slide 101. The top end of the slide bar 102 penetrates the outside of the inverted U-shaped platform 6 and is fixedly connected to the bottom end of the lower gear box casting mold 7. After the upper gear box casting mold 5 and the lower gear box casting mold 7 are separated, the reset spring 103 starts to reset from the original stretched state, that is, the reset spring 103 pulls the slide 101, the slide bar 102 and the lower gear box casting mold 7 upward, so that the lower gear box casting mold 7 and the molded workpiece are initially separated from the upper surface of the inverted U-shaped platform 6. Thereafter, the screw lifting module 10 and the plug-in separation mechanism 11 separate the molded workpiece from the lower gear box casting mold 7, so that the molded workpiece can be quickly and fully lifted;

[0025] The screw lifting module 10 includes a right-angle seat 1001 fixed to one side of the bottom end of the inner plate 8, a one-way screw 1003 rotatably mounted on the surface of the inner plate 8 through a bearing seat, and a servo motor 1002 installed at the bottom end of the right-angle seat 1001 for driving the one-way screw 1003 to rotate. A nut pair is installed at a threaded portion at one end of the surface of the one-way screw 1003. The surface of the nut pair is connected to the back of the slide plate 9. When the screw lifting module 10 is working, the servo motor 1002 drives the one-way screw 1003 to rotate, and the one-way screw 1003 drives the slide plate 9 and the plug-in separation mechanism 11 upward through the nut pair. The screw lifting module 10 ensures that the plug-in separation mechanism 11 can be accurately inserted into the contact surface between the molded workpiece and the lower mold by accurately controlling the height of the plug-in separation mechanism 11, and the staff no longer needs to separate the workpiece from the mold with great effort.

[0026] The plug-in separation mechanism 11 includes two convex platforms 1101 fixed on the top of the slide 9, rectangular connecting arms 1102 slidably installed inside the two convex platforms 1101, and a shovel plate 1105 integrally formed at the same end of the two rectangular connecting arms 1102. A connecting plate 1103 is fixed to the same other end of the two rectangular connecting arms 1102. Double-rod cylinders 1104 are installed on both sides of the surface of the slide 9. The top of the piston rod of the double-rod cylinder 1104 is fixedly connected to the back of the connecting plate 1103. The connecting plate 1103, the rectangular connecting arm 1102 and the shovel plate 1105 are pulled by the double-rod cylinder 1104 to move toward the workpiece. In this process, the convex platform 1101 is used to guide and support the sliding of the rectangular connecting arm 1102 and other components, so that the shovel plate 1105 is inserted into the contact surface of the workpiece and the mold, thereby avoiding deformation or damage of the workpiece caused by improper separation process.

[0027] When the embodiment of the present application is in use, the staff first connects the inlet gate 501 to the supply end of the molten metal, and starts the hydraulic cylinder 3 to work, and the hydraulic cylinder 3 drives the upper template 4 and the upper gear box casting mold 5 downward until the upper gear box casting mold 5 and the lower gear box casting mold 7 are completely matched and docked, and the two form a closed cavity space that can form a gear box workpiece. At this time, the elastic reset structure in the inverted U-shaped platform 6 is in a stretched state, and then the staff injects molten metal into the cavity space formed by the upper gear box casting mold 5 and the lower gear box casting mold 7 through the inlet gate 501. The molten metal is poured into the cavity of the mold, and the shape of the cavity is used to limit the flow and solidification of the metal liquid. As the metal liquid cools and solidifies, it gradually fills the entire cavity and forms the shape of the gear box. When the upper gear box casting mold 5 and the lower gear box casting mold 7 are separated, the formed gear The gear box workpiece will be retained on the lower gear box casting mold 7 due to its own weight. At this time, the staff turns on the screw lifting module 10, and the screw lifting module 10 actively controls the height of the slide plate 9 and the plug-in separation mechanism 11 until the plug-in plane of the plug-in separation mechanism 11 coincides with the top plane of the gear box workpiece and the inverted U-shaped platform 6. The plug-in separation mechanism 11 is then actuated to insert the plug-in separation mechanism 11 into the contact surface of the gear box workpiece and the inverted U-shaped platform 6, and then the screw lifting module 10 continues to perform an upward movement, thereby lifting the plug-in separation mechanism 11 and the gear box workpiece upward together, so that the gear box workpiece is separated from the inverted U-shaped platform 6 and the lower gear box casting mold 7, realizing complete separation of the workpiece and the mold, thereby facilitating the staff to lift the workpiece formed on the lower gear box casting mold 7. This sufficient separation reduces the difficulty of manual material unloading operations and can also avoid damage to the workpiece caused by insufficient separation.

Claims

1. A gearbox rapid prototyping mold, characterized by: The invention comprises a mold frame (1) and a top plate (2) fixed at the top of the mold frame (1); an upper mold plate (4) is slidably mounted on one end of the mold frame (1); an upper gearbox casting mold (5) is mounted on the bottom of the upper mold plate (4); a pouring gate (501) for molten metal to enter is arranged on one side of the surface of the upper gearbox casting mold (5); a hydraulic cylinder (3) for pulling the upper mold plate (4) and the upper gearbox casting mold (5) up and down is mounted on the top of the top plate (2); and a hydraulic cylinder (3) for pulling the upper mold plate (4) and the upper gearbox casting mold (5) up and down is mounted on the bottom of the mold frame (1). An inverted U-shaped platform (6) is fixed, and a lower gear box casting mold (7) is installed on the top of the inverted U-shaped platform (6). Inner plates (8) are fixed on the front and rear outer walls of the inverted U-shaped platform (6), and a slide plate (9) is slidably installed on the surface of the inner plate (8). A screw lifting module (10) for controlling the lifting height of the slide plate (9) is arranged on one side of the surface of the inner plate (8), and an insertion and removal separation mechanism (11) for inserting into the contact surface between the molded workpiece and the inverted U-shaped platform (6) is installed on the top of the slide plate (9).

2. A gearbox rapid prototyping mold according to claim 1, characterized in that: The corners of the bottom of the upper gearbox casting mold (5) are all fixed with upright posts, and a column cavity concentric with the upright posts is arranged inside the inverted U-shaped platform (6), and the bottom of the upright post extends downward to the inside of the column cavity.

3. The gearbox rapid prototyping mold according to claim 1, characterized in that: An elastic reset structure is arranged inside the inverted U-shaped platform (6).

4. A gearbox rapid prototyping mold according to claim 3, characterized in that: The elastic reset structure comprises a plurality of reset springs (103) installed at equal intervals on the top wall of the inverted U-shaped platform (6), and a slide table (101) installed together at the bottom ends of the plurality of reset springs (103), wherein a slide bar (102) is fixed at the top corner position of the slide table (101), and the top end of the slide bar (102) passes through the outside of the inverted U-shaped platform (6) and is fixedly connected to the bottom end of the lower gear box casting mold (7).

5. The gearbox rapid prototyping mold according to claim 1, characterized in that: The screw rod lifting module (10) comprises a right-angle seat (1001) fixed to one side of the bottom end of the inner plate (8), a one-way screw rod (1003) rotatably mounted on the surface of the inner plate (8) via a bearing seat, and a servo motor (1002) mounted at the bottom end of the right-angle seat (1001) for driving the one-way screw rod (1003) to rotate, a nut pair being mounted at a threaded portion at one end of the surface of the one-way screw rod (1003), and a surface of the nut pair being connected to the back side of the slide plate (9).

6. The gearbox rapid prototyping mold according to claim 1, characterized in that: Sliding sleeves (901) are fixed to both sides of the back side of the slide plate (9), and the back side of the sliding sleeve (901) and the surface of the inner plate (8) are in sliding cooperation.

7. The gearbox rapid prototyping mold according to claim 1, characterized in that: The plug-in and take-out separation mechanism (11) comprises two convex platforms (1101) fixed on the top of the slide plate (9), rectangular connecting arms (1102) slidably mounted inside the two convex platforms (1101), and a shovel plate (1105) integrally formed at the same end of the two rectangular connecting arms (1102); a connecting plate (1103) is fixed to the same other end of the two rectangular connecting arms (1102); double-rod cylinders (1104) are installed on both sides of the surface of the slide plate (9); the top of the piston rod of the double-rod cylinder (1104) is fixedly connected to the back of the connecting plate (1103).

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