Differential mechanism shell casting mold

Abstract

The utility model discloses a casting mold for a differential shell. The casting mold comprises a lower mold seat and a lifting mechanism, the lifting mechanism comprises vertical rods, a connecting plate, an ejector rod, a mounting rod and a push plate, the vertical rods are arranged on the front side and the rear side of the interior of the lower die base correspondingly and are in sliding connection with sliding holes correspondingly formed in the lower end of the connecting plate correspondingly, the ejector rod is arranged in the middle of the upper end of the connecting plate, and the mounting rod is rotationally connected to the lower side of the interior of the lower die base through a bearing; the differential shell casting mold further comprises a control switch set, the control switch set is arranged at the right end of the lower mold base, and the input end of the lower mold base is electrically connected with an external power source. And the differential shell is prevented from being clamped in the forming groove, the working efficiency is improved, meanwhile, the production schedule is increased, and the quality of the differential shell is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a differential housing casting mold. Background Technique

[0002] A differential is a device used to adjust the rotational speed difference between the left and right wheels to compensate for the speed difference between the inner and outer wheels during vehicle driving. It can adjust the rotational speed difference between the left and right wheels to compensate for the balance among the inner and outer wheels and the planet carrier during vehicle driving, enabling the vehicle to turn smoothly or drive on uneven roads;

[0003] During the production process of the differential housing, a differential housing casting mold is usually used for casting. When the differential housing casting mold is in use, the upper mold base is usually inserted into the forming groove, and then molten metal is injected into the forming groove through injection equipment, so that the molten metal fills the gap between the upper mold base and the forming groove under the pressure of the injection equipment, thereby forming the required shape of the differential housing. After filling, an external cooling device is used to cool the differential housing casting mold, so that the liquid metal cools and solidifies in the forming groove, thereby forming the differential housing;

[0004] During the use of the existing differential housing casting mold, the differential housing often gets stuck in the forming groove, resulting in the interruption of the production process, reducing the work efficiency and affecting the production progress. When trying to remove the differential housing stuck in the mold, if the operation is improper, it will also damage the differential housing, thereby reducing the quality of the differential housing. For this reason, we propose a differential housing casting mold. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a differential housing casting mold, which can eject the cooled differential housing, prevent the differential housing from getting stuck in the forming groove, improve the work efficiency and increase the production progress, and ensure the quality of the differential housing, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A differential housing casting mold, comprising a lower mold base and a lifting mechanism;

[0007] Lifting mechanism: It includes vertical rods, connecting plates, ejector rods, mounting rods and push plates. The vertical rods are respectively arranged on the front and rear sides inside the lower die base. The vertical rods are slidably connected to the sliding holes correspondingly arranged at the lower ends of the connecting plates. A ejector rod is arranged in the middle of the upper end of the connecting plate. The mounting rods are all rotatably connected to the lower side inside the lower die base through bearings. Push plates are arranged on the rear sides of the outer arcs of the mounting rods. The upper ends of the push plates are all in contact with the lower ends of the connecting plates, which can eject the cooled differential housing, prevent the differential housing from getting stuck inside the forming groove, improve work efficiency and increase production progress at the same time.

[0008] Furthermore, it also includes a control switch group. The control switch group is arranged at the right end of the lower die base. The input end of the lower die base is electrically connected to an external power supply, which can regulate the electrical components inside the equipment.

[0009] Furthermore, the lifting mechanism also includes gears. The gears are all arranged in the middle of the outer arcs of the mounting rods. The two gears are meshed and connected, which can drive the left mounting rod to rotate.

[0010] Furthermore, the lifting mechanism also includes a motor, a worm and a worm gear. The motor is arranged at the front side of the right end of the lower die base. A worm is arranged at the left end of the output shaft of the motor. The worm gear is arranged at the front side of the outer arc of the right mounting rod. The worm is meshed with the worm gear. The input end of the motor is electrically connected to the output end of the control switch group, which can drive the right mounting rod to rotate.

[0011] Furthermore, it also includes electric push rods. The electric push rods are respectively arranged at the four corners of the upper end of the lower die base. The upper ends of the telescopic ends of the electric push rods are all fixedly connected to the lower end of the upper die base. The input ends of the electric push rods are all electrically connected to the output end of the control switch group, which can form a gap for casting the differential housing with the forming groove.

[0012] Furthermore, it also includes springs. The springs are respectively arranged between the lower end of the connecting plate and the bottom wall of the lower die base. The springs are all sleeved on the outside of the lower sides of the vertical rods. The pulling force generated by the contraction of the springs can drive the ejector rod to move downward and reset through the connecting plate.

[0013] Furthermore, it also includes a forming groove and a connecting pipe. The forming groove is arranged in the middle of the upper end of the lower die base. The ejector rod is slidably connected to the sliding groove arranged in the middle of the bottom wall of the forming groove. The connecting pipe is arranged in the feeding port opened on the upper side of the right end of the lower die base. The left end of the connecting pipe is communicated with the forming groove. A connecting valve is connected in series on the right side of the connecting pipe. The external injection equipment injects the molten metal into the forming groove through the connecting pipe, so that the molten metal fills the gap between the upper die base and the forming groove under the pressure of the injection equipment, thereby forming the required shape of the differential housing.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The casting mold of this differential housing has the following advantages:

[0015] During the rotation of the installation rod, it can drive the push plate to rotate upward. At this time, the connecting plate starts to move upward under the thrust of the push plate, the spring extends, the connecting plate drives the ejector rod to move upward, and finally the cooled differential housing is ejected by the ejector rod. After the casting of the differential housing is completed, the cooled differential housing can be ejected by the ejector rod, preventing the differential housing from getting stuck inside the forming groove, improving the work efficiency and increasing the production progress at the same time, solving the problem of the production process being interrupted due to the differential housing getting stuck inside the forming groove, and ensuring the quality of the differential housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the lifting mechanism of the present utility model;

[0018] Figure 3 is a schematic front - plane structural diagram of the present utility model.

[0019] In the figure: 1 lower mold base, 2 control switch group, 3 forming groove, 4 electric push rod, 5 upper mold base, 6 lifting mechanism, 61 vertical rod, 62 connecting plate, 63 ejector rod, 64 installation rod, 65 push plate, 66 gear, 67 motor, 68 worm, 69 worm gear, 7 spring, 8 connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , this embodiment provides a technical solution: A casting mold for a differential housing, including a lower mold base 1 and a lifting mechanism 6;

[0022] Lifting mechanism 6: It includes a vertical rod 61, a connecting plate 62, a top rod 63, a mounting rod 64 and a push plate 65. The vertical rods 61 are respectively arranged on the front and rear sides inside the lower die base 1. The vertical rods 61 are respectively slidably connected to the sliding holes correspondingly arranged at the lower ends of the connecting plate 62. A top rod 63 is arranged in the middle of the upper end of the connecting plate 62. The mounting rods 64 are all rotatably connected to the lower side inside the lower die base 1 through bearings. Push plates 65 are arranged on the rear sides of the outer arc surfaces of the mounting rods 64. The upper ends of the push plates 65 are all in contact with the lower ends of the connecting plate 62. The lifting mechanism 6 further includes gears 66. The gears 66 are all arranged in the middle of the outer arc surfaces of the mounting rods 64. The two gears 66 are meshed and connected. The lifting mechanism 6 further includes a motor 67, a worm 68 and a worm gear 69. The motor 67 is arranged on the front side of the right end of the lower die base 1. The left end of the output shaft of the motor 67 is provided with the worm 68. The worm gear 69 is arranged on the front side of the outer arc surface of the right mounting rod 64. The worm 68 is meshed and connected with the worm gear 69. The input end of the motor 67 is electrically connected to the output end of the control switch group 2. During the rotation of the mounting rod 64, it can drive the push plate 65 to rotate upward. At this time, the connecting plate 62 starts to move upward under the thrust of the push plate 65. The connecting plate 62 drives the top rod 63 to move upward, so as to push out the cooled differential housing through the top rod 63. After the differential housing is cast, the cooled differential housing can be pushed out through the top rod 63, preventing the differential housing from getting stuck inside the forming groove 3, improving the working efficiency and also increasing the production progress, and solving the problem of the production process being interrupted due to the differential housing getting stuck inside the forming groove 3.

[0023] Among them: It further includes a control switch group 2. The control switch group 2 is arranged at the right end of the lower die base 1. The input end of the lower die base 1 is electrically connected to an external power supply, and can regulate the electrical components inside the equipment.

[0024] Among them: It further includes electric push rods 4. The electric push rods 4 are respectively arranged at the four corners of the upper end of the lower die base 1. The upper ends of the telescopic ends of the electric push rods 4 are fixedly connected to the lower end of the upper die base 5. The input ends of the electric push rods 4 are all electrically connected to the output end of the control switch group 2. Through the regulation of the control switch group 2, the electric push rods 4 start to operate, and the telescopic ends of the electric push rods 4 shorten, so that the electric push rods 4 drive the upper die base 5 to move downward, and the upper die base 5 is inserted into the forming groove 3.

[0025] Among them: It further includes springs 7. The springs 7 are respectively arranged between the lower end of the connecting plate 62 and the bottom wall of the lower die base 1. The springs 7 are all sleeved on the outside of the lower sides of the vertical rods 61. The pulling force generated by the contraction of the springs 7 can drive the top rod 63 to move downward and reset through the connecting plate 62.

[0026] Among them: It also includes a forming groove 3 and a connecting pipe 8. The forming groove 3 is arranged in the middle of the upper end of the lower die seat 1. The ejector rod 63 is slidably connected to a chute arranged in the middle of the bottom wall of the forming groove 3. The connecting pipe 8 is arranged in a feeding port opened on the upper side of the right end of the lower die seat 1. The left end of the connecting pipe 8 is communicated with the forming groove 3. A connecting valve is connected in series on the right side of the connecting pipe 8. By opening the connecting valve, the external injection equipment injects the molten metal into the interior of the forming groove through the connecting pipe 8, so that the molten metal fills the gap between the upper die seat 5 and the forming groove 3 under the pressure of the injection equipment, thereby forming the required shape of the differential housing.

[0027] The working principle of a differential housing casting mold provided by the present utility model is as follows: Before work, the connecting pipe 8 is docked with an external injection device. During the working process of the differential housing casting mold, through the regulation of the control switch group 2, the electric push rod 4 starts to operate, and the telescopic end of the electric push rod 4 shortens, so that the electric push rod 4 drives the upper die seat 5 to move downward, and the upper die seat 5 is inserted into the interior of the forming groove 3. Then the connecting valve is opened, and the external injection equipment injects the molten metal into the interior of the forming groove through the connecting pipe 8, so that the molten metal fills the gap between the upper die seat 5 and the forming groove 3 under the pressure of the injection equipment, thereby forming the required shape of the differential housing. After filling, the differential housing casting mold is cooled by an external cooling device, so that the liquid metal is cooled and solidified in the forming groove 3 to form a differential housing. After cooling, through the regulation of the control switch group 2, the electric push rod 4 starts to operate, and the telescopic end of the electric push rod 4 extends, so that the electric push rod 4 drives the upper die seat 5 to move upward, and the upper die seat 5 is separated from the forming groove 3. Then, through the regulation of the control switch group 2, the motor 67 starts to operate, and the output shaft of the motor 67 drives the worm gear 69 to rotate through the worm 68, so that the worm gear 69 drives the right mounting rod 64 to rotate. The right mounting rod 64 drives the right gear 66 to rotate. During the rotation of the right gear 66, it drives the left gear 66 to rotate through meshing connection, thereby driving the two mounting rods 64 to rotate. The rotation directions of the two mounting rods 64 are opposite. The mounting rod 64 drives the push plate 65 to rotate upward. At this time, the connecting plate 62 starts to move upward under the thrust of the push plate 65, the spring 7 extends, the connecting plate 62 drives the ejector rod 63 to move upward, and finally the cooled differential housing is ejected by the ejector rod 63.

[0028] It should be noted that in the above embodiments, the electric push rod 4 disclosed can be selected as YRJ0905, the motor 67 can be selected as FTY18500-6, and control buttons corresponding to the electric push rod 4 and the motor 67 for controlling their switches are arranged on the control switch group 2.

[0029] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A differential case casting mold, characterized in that: It comprises a lower mold base (1) and a lifting mechanism (6); A lifting mechanism (6): It comprises a vertical rod (61), a connecting plate (62), a push rod (63), a mounting rod (64) and a push plate (65), wherein the vertical rod (61) is respectively arranged at the front and rear sides of the interior of the lower mold seat (1), and the vertical rod (61) is slidably connected to the sliding holes corresponding to the lower end of the connecting plate (62), a push rod (63) is arranged in the middle of the upper end of the connecting plate (62), and the mounting rods (64) are rotatably connected to the lower side of the interior of the lower mold seat (1) through bearings, and push plates (65) are arranged on the rear side of the outer arc surface of the mounting rod (64), and the upper end of the push plate (65) is in contact with the lower end of the connecting plate (62).

2. A differential case casting mold according to claim 1, characterized in that: It also comprises a control switch group (2), wherein the control switch group (2) is arranged at the right end of the lower mold base (1), and the input end of the lower mold base (1) is electrically connected to an external power supply.

3. The differential case casting mold according to claim 1, characterized in that: The lifting mechanism (6) further comprises a gear (66), wherein the gears (66) are arranged at the middle of the outer arc surface of the mounting rod (64), and the two gears (66) are meshedly connected.

4. A differential case casting mold according to claim 2, characterized in that: The lifting mechanism (6) also includes a motor (67), a worm (68) and a worm wheel (69), wherein the motor (67) is arranged on the front side of the right end of the lower mold base (1), the left end of the output shaft of the motor (67) is provided with a worm (68), the worm wheel (69) is arranged on the front side of the outer arc surface of the right side mounting rod (64), the worm (68) and the worm wheel (69) are meshingly connected, and the input end of the motor (67) is electrically connected to the output end of the control switch group (2).

5. The differential case casting mold according to claim 2, characterized in that: It also includes an electric push rod (4), which is respectively arranged at the four corners of the upper end of the lower mold base (1), the upper end of the telescopic end of the electric push rod (4) is fixedly connected to the lower end of the upper mold base (5), and the input end of the electric push rod (4) is electrically connected to the output end of the control switch group (2).

6. The differential case casting mold according to claim 1, characterized in that: It also includes springs (7), which are respectively arranged between the lower end of the connecting plate (62) and the bottom wall of the lower mold base (1), and the springs (7) are all sleeved on the outside of the lower side of the vertical rod (61).

7. The differential case casting mold according to claim 1, characterized in that: It also includes a molding groove (3) and a connecting pipe (8), wherein the molding groove (3) is arranged in the middle of the upper end of the lower mold base (1), the top rod (63) is slidably connected to a slide groove arranged in the middle of the bottom wall of the molding groove (3), the connecting pipe (8) is arranged in a feed port opened on the upper side of the right end of the lower mold base (1), the left end of the connecting pipe (8) is connected to the molding groove (3), and a connecting valve is connected in series on the right side of the connecting pipe (8).

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