Positioning device for forming mold of injection molded part for vehicle

Abstract

The utility model discloses a kind of positioning device for injection molding part forming mould for vehicle, including workbench, the workbench top is connected with two groups of fixed pin by screw thread, and two groups of fixed pin are mutually perpendicular arrangement, workbench side is fixed with connecting plate, electric push rod is installed in connecting plate inner wall, drive mechanism is set in workbench, drive mechanism top is provided with positioning mechanism, drive block is slidably connected in workbench inner wall bottom, and drive block is fixedly connected with electric push rod output end, carousel is rotatably connected in workbench inner wall top, and carousel top is evenly provided with guide slot, guide slot is arc eccentric slot, guide column is fixed in drive block top. The utility model can clamp the mould in certain range by positioning mechanism to improve the adaptability of device, in addition, by electric push rod as only power source cooperation drive mechanism drives positioning mechanism to displace to reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of mold positioning technology, and in particular to a positioning device for automotive injection molds. Background Technology

[0002] In the existing technology, automotive injection molded parts are key components of automobiles manufactured through injection molding processes. With their strong plasticity, controllable cost, high production efficiency, and ability to meet different performance requirements, they are widely used in multiple systems and parts of automobiles, undertaking multiple functions such as functional realization, structural support, decoration and aesthetics, and safety protection.

[0003] A search revealed a utility model patent with Chinese patent publication number CN218576871U, which discloses a positioning device for a mold, comprising: an upper mold and a lower mold. Four positioning guide pillars are mounted on the lower mold, and a positioning guide sleeve adapted to the positioning guide pillars is mounted on the bottom of the upper mold. A linkage mechanism is provided on one side of each positioning guide pillar. The linkage mechanism includes a lifting rod mounted on the top of the lower mold, a push rod above the lifting rod, and the push rod is connected to the upper mold. A first spring is mounted on each positioning guide pillar. While this utility model reduces the risk of the positioning guide pillars being misaligned during injection molding by setting up liftable positioning guide pillars and a linkage mechanism located outside the mold cavity, thus improving the problem of misalignment after mold closing, it cannot be adjusted according to the mold size. If mold replacement is required, components such as the lower mold support and rotating plate need to be disassembled to adjust the position of the positioning guide pillars, resulting in insufficient adaptability. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a positioning device for automotive injection molding dies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning device for automotive injection molded parts includes a worktable. The top of the worktable is connected by two sets of fixing pins through threads, and the two sets of fixing pins are arranged perpendicular to each other. A connecting plate is fixed on one side of the worktable, and an electric push rod is installed on the inner wall of the connecting plate. A driving mechanism is provided inside the worktable, and a positioning mechanism is provided on the top of the driving mechanism.

[0007] As a further embodiment of this utility model: the driving mechanism includes a driving block, a turntable, a slider, a guide column and a connecting block, and the driving block is slidably connected to the bottom of the inner wall of the worktable, and the driving block is fixedly connected to the output end of the electric push rod.

[0008] As a further embodiment of this utility model: the turntable is rotatably connected to the top of the inner wall of the workbench, and the top of the turntable is evenly provided with guide grooves, which are arc-shaped eccentric grooves. The guide post is fixed to the top of the drive block, and the guide post slides in cooperation with the guide grooves opened on the turntable.

[0009] As a further embodiment of this utility model: the two sets of sliders are slidably connected to the bottom of the inner wall of the workbench, and the two sets of sliders are arranged perpendicular to each other. The other two sets of guide posts are fixed to the top of the sliders respectively. The guide posts at the top of the sliders are slidably engaged with the guide grooves. The two connecting blocks are fixed to the top of the sliders respectively.

[0010] As a further embodiment of this utility model: the positioning mechanism includes a mounting plate, a sleeve, a limiting rod, a screw, a handwheel, a pressing rod, a positioning plate, a limiting plate, and a spring, and the mounting plate is installed on one side of the connecting block.

[0011] As a further embodiment of this utility model: the sleeve is fixed to one side of the mounting plate, a limiting hole is passed through one side of the mounting plate, the limiting rod is slidably connected to the inner wall of the limiting hole, the limiting plate is fixed to one end of the limiting rod, the screw passes through one side of the mounting plate, and one end of the screw is fixedly connected to one side of the limiting plate, the handwheel is rotatably connected to one side of the mounting plate, and the handwheel is threadedly connected to the outer wall of the screw.

[0012] As a further embodiment of this utility model: one end of the spring is fixed to the inner wall of the sleeve, the extrusion rod is fixed to the other end of the spring, and the extrusion rod is inserted into the inner wall of the sleeve, and the positioning plate is fixed to one end of the extrusion rod.

[0013] Compared with the prior art, this utility model provides a positioning device for automotive injection molding dies, which has the following advantages:

[0014] The electric push rod drives the drive block and guide column to rotate the turntable, causing the two sets of sliders to move simultaneously. This, in turn, causes the connecting block and positioning mechanism to move synchronously, thus achieving mold positioning. Therefore, only one electric push rod is needed as a power source to drive two vertical sliders through the turntable, thereby driving the positioning mechanism to move and cooperate with the fixing pin to achieve positioning, thus reducing manufacturing and maintenance costs. In addition, the handwheel drives the screw to move, thereby adjusting the distance between the limit plate and the positioning plate, thus limiting the maximum advance distance of the limit plate. This allows for the positioning of molds within a certain range, improving the adaptability of the device.

[0015] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0016] Figure 1This is a front view of a positioning device for an automotive injection mold proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of a positioning device for an automotive injection mold according to the present invention;

[0018] Figure 3 This is a schematic diagram of the drive mechanism in a positioning device for automotive injection molds proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the positioning mechanism in a positioning device for automotive injection molds proposed in this utility model;

[0020] Figure 5 This is an enlarged view of the positioning mechanism in a positioning device for a positioning mold for automotive injection parts proposed in this utility model.

[0021] In the diagram: 1. Workbench; 2. Connecting plate; 3. Electric push rod; 4. Fixing pin; 5. Drive mechanism; 6. Positioning mechanism; 501. Drive block; 502. Turntable; 503. Slider; 504. Guide post; 505. Connecting block; 601. Mounting plate; 602. Sleeve; 603. Limiting rod; 604. Screw; 605. Handwheel; 606. Pressing rod; 607. Positioning plate; 608. Limiting plate; 609. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] A positioning device for automotive injection molds, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the workbench 1 is provided with two sets of fixing pins 4 connected to the top of the workbench 1 by threads, and the two sets of fixing pins 4 are arranged perpendicular to each other. A connecting plate 2 is fixed on one side of the workbench 1, and an electric push rod 3 is installed on the inner wall of the connecting plate 2. A drive mechanism 5 is provided inside the workbench 1, and a positioning mechanism 6 is provided on the top of the drive mechanism 5.

[0026] First, based on the mold size, the positioning mechanism 6 is pre-adjusted to ensure its stroke range covers the mold's positioning requirements. Then, the plastic mold is placed on top of the worktable 1, so that the adjacent sides of the mold contact two sets of mutually perpendicular fixing pins 4. Next, the electric push rod 3 is activated, and the power is transmitted to the positioning mechanism 6 through the drive mechanism 5, so that the two sets of positioning mechanisms 6 approach the mold from a direction perpendicular to the fixing pins 4. After contacting the mold, the positioning mechanism 6 clamps the mold through its adaptive function, thereby achieving mold positioning. Thus, the positioning mechanism 6 can clamp the mold within a certain range, improving the adaptability of the device. In addition, the electric push rod 3 is used as a power source to drive the positioning mechanism 6 to move in conjunction with the drive mechanism 5, thereby reducing manufacturing costs.

[0027] In order to drive the positioning mechanism 6 to move towards the injection molding die, the driving mechanism 5 includes a driving block 501, a turntable 502, a slider 503, a guide post 504, and a connecting block 505. The driving block 501 is slidably connected to the bottom of the inner wall of the worktable 1 and is fixedly connected to the output end of the electric push rod 3. The turntable 502 is rotatably connected to the top of the inner wall of the worktable 1, and the top of the turntable 502 is evenly provided with guide grooves, which are arc-shaped eccentric grooves. The guide post 504 is fixed to the top of the driving block 501 and slides in cooperation with the guide grooves provided in the turntable 502. Two sets of sliders 503 are slidably connected to the bottom of the inner wall of the worktable 1 and are arranged perpendicular to each other. The other two sets of guide posts 504 are fixed to the top of the sliders 503 respectively, and the guide posts 504 on the top of the sliders 503 slide in cooperation with the guide grooves. Two connecting blocks 505 are fixed to the top of the sliders 503 respectively.

[0028] When positioning the mold is required, the electric push rod 3 is activated, and its output end pushes the drive block 501 fixed thereto. The drive block 501 moves linearly along the preset slide rail at the top of the inner wall of the worktable 1, and transmits linear power to the guide post 504 at the top of the drive block 501. At this time, the guide post 504 at the top of the drive block 501 slides in the guide groove and applies radial force, forcing the turntable 502 to rotate around the connection point at the bottom of the inner wall of the worktable 1. When the turntable 502 rotates, the guide groove at its top simultaneously engages with the guide post 504 at the top of the slider 503. Since the sliding directions of the two sets of sliders 503 are perpendicular to each other, the different angle segments of the guide groove push the two driven posts respectively, so that the sliders 503 move synchronously towards the center of the worktable 1 in their respective directions. At the same time, the connecting block 505 moves synchronously, driving the positioning mechanism 6 to move together. Thus, only one electric push rod 3 is needed as a power source to drive the two vertical sliders 503 through the turntable 502, thereby driving the positioning mechanism 6 to move and engage with the fixing pin 4 to achieve positioning, thereby reducing manufacturing and maintenance costs.

[0029] In order to clamp molds of different sizes, such as Figure 4 and Figure 5 As shown, the positioning mechanism 6 includes a mounting plate 601, a sleeve 602, a limiting rod 603, a screw 604, a handwheel 605, a pressing rod 606, a positioning plate 607, a limiting plate 608, and a spring 609. The mounting plate 601 is mounted on one side of the connecting block 505, the sleeve 602 is fixed to one side of the mounting plate 601, a limiting hole extends through one side of the mounting plate 601, the limiting rod 603 is slidably connected to the inner wall of the limiting hole, and the limiting plate 608 is fixed to the limiting rod 609. 3. At one end, the screw 604 passes through one side of the mounting plate 601, and one end of the screw 604 is fixedly connected to one side of the limiting plate 608. The handwheel 605 is rotatably connected to one side of the mounting plate 601, and the handwheel 605 is threadedly connected to the outer wall of the screw 604. One end of the spring 609 is fixed to the inner wall of the sleeve 602, and the extrusion rod 606 is fixed to the other end of the spring 609. The extrusion rod 606 is inserted into the inner wall of the sleeve 602, and the positioning plate 607 is fixed to one end of the extrusion rod 606.

[0030] Before positioning the mold, the operator turns handwheel 605. At this time, the screw 604 is affected by the thread, but the limiting plate 608 is restricted from rotating due to the limiting rod 603 and the limiting hole in the mounting plate 601. This prevents the screw 604 from rotating along its own axis. Turning handwheel 605, driven by the thread, moves the screw 604 horizontally along the mounting plate 601, thus moving the limiting plate 608 to the correct position. The position of the limiting plate 608 determines the maximum advancing distance of the positioning plate 607, allowing the position of the positioning plate 607 to be adjusted according to the mold size. When positioning the mold, first place the mold on top of the worktable 1, ensuring both sides of the mold contact the fixing pins 4. Then, driven by the drive mechanism 5, the connecting block 505 moves the positioning mechanism 6 towards the mold. If one side of the positioning plate 607 is too far from the mold... The closer mold contacts the mold first. At this time, the positioning plate 607 presses the extrusion rod 606, causing the extrusion rod 606 to slide inside the sleeve 602 and compress the spring 609. The limiting plate 608 on this side is farther from the positioning plate 607, giving the positioning plate 607 on this side a larger displacement space. While the positioning plate 607 on this side is compressing the spring 609 through the extrusion rod 606, the positioning plate 607 farther from the mold is also displaced under the drive of the connecting block 505. The positioning plate 607 farther from the mold is closer to the limiting plate 608. When the positioning plate 607 farther from the mold comes into contact with the limiting plate 608, the positioning plate 607 closer to the mold also comes into contact with the limiting plate 608 at the same time, thereby realizing the positioning of the mold. Thus, the position of the limiting plate 608 can be adjusted by the handwheel 605, thereby enabling the positioning of the mold within a certain range, thereby improving the adaptability of the device.

[0031] Working principle: First, the positioning mechanism 6 is pre-adjusted according to the mold size to ensure that its stroke range can cover the positioning requirements of the mold. Then, the plastic mold is placed on the top of the worktable 1, so that the adjacent sides of the mold contact the two sets of mutually perpendicular fixing pins 4. Then, the electric push rod 3 is activated, and the power is transmitted to the positioning mechanism 6 through the drive mechanism 5, so that the two sets of positioning mechanisms 6 approach the mold from the direction perpendicular to the fixing pins 4. After the positioning mechanism 6 contacts the mold, it clamps the mold through the adaptive function, thereby realizing the positioning of the mold.

[0032] When mold positioning is required, the electric push rod 3 is activated, and its output end pushes the drive block 501 fixed thereto. The drive block 501 moves linearly along the preset slide rail at the top of the inner wall of the worktable 1, transmitting linear power to the guide post 504 at the top of the drive block 501. At this time, the guide post 504 at the top of the drive block 501 slides in the guide groove and applies radial force, forcing the turntable 502 to rotate around the connection point at the bottom of the inner wall of the worktable 1. When the turntable 502 rotates, the guide groove at its top simultaneously engages with the guide post 504 at the top of the slider 503. Since the sliding directions of the two sets of sliders 503 are perpendicular to each other, different angle segments of the guide groove push the two driven posts respectively, causing the sliders 503 to synchronously approach the center of the worktable 1 in their respective directions. At the same time, the connecting block 505 moves synchronously, driving the positioning mechanism 6 to move together.

[0033] Before positioning the mold, the operator turns handwheel 605. At this time, the screw 604 is affected by the thread, but the limiting plate 608 is restricted from rotating by the limiting rod 603 and the limiting hole opened in the mounting plate 601. This prevents the screw 604 from rotating along its own axis. At this time, turning handwheel 605, under the transmission of the thread, moves the screw 604 along the horizontal direction of the mounting plate 601, thereby driving the limiting plate 608 to move together. The position of the limiting plate 608 determines the maximum advance distance of the positioning plate 607, so the position of the positioning plate 607 can be adjusted according to the size of the mold. When it is necessary to position the mold, first place the mold on the top of the worktable 1, so that both sides of the mold contact the fixing pin 4. Then, under the drive of the drive mechanism 5, the connecting block 50 5 drives the positioning mechanism 6 to move towards the mold. If the positioning plate 607 on one side is closer to the mold, it will contact the mold first. At this time, the positioning plate 607 will press the pressing rod 606, causing the pressing rod 606 to slide inside the sleeve 602 and press the spring 609. The limiting plate 608 on this side is farther away from the positioning plate 607, giving the positioning plate 607 on this side a larger displacement space. While the positioning plate 607 on this side is pressing the spring 609 through the pressing rod 606, the positioning plate 607 that is farther away from the mold is also displaced under the drive of the connecting block 505. The positioning plate 607 that is farther away is closer to the limiting plate 608. When the positioning plate 607 that is farther away is in contact with the limiting plate 608, the positioning plate 607 that is closer to the mold will also be in contact with the limiting plate 608 at the same time, thereby realizing the positioning of the mold.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning device for a molding die for an injection-molded part for a vehicle, comprising a worktable (1), characterized in that, The top of the workbench (1) is connected by two sets of fixing pins (4) by threads, and the two sets of fixing pins (4) are arranged perpendicular to each other. A connecting plate (2) is fixed on one side of the workbench (1), and an electric push rod (3) is installed on the inner wall of the connecting plate (2). A drive mechanism (5) is provided inside the workbench (1), and a positioning mechanism (6) is provided on the top of the drive mechanism (5).

2. The positioning device for a molding die of an injection-molded part for a vehicle according to claim 1, characterized by The drive mechanism (5) includes a drive block (501), a turntable (502), a slider (503), a guide post (504), and a connecting block (505). The drive block (501) is slidably connected to the bottom of the inner wall of the worktable (1), and the drive block (501) is fixedly connected to the output end of the electric push rod (3).

3. The positioning device for a molding die of an injection-molded part for a vehicle according to claim 2, characterized by The turntable (502) is rotatably connected to the top of the inner wall of the workbench (1), and the top of the turntable (502) is evenly provided with guide grooves. The guide grooves are arc-shaped eccentric grooves. The guide post (504) is fixed to the top of the drive block (501), and the guide post (504) slides in cooperation with the guide grooves provided by the turntable (502).

4. A positioning device for automotive injection molding dies according to claim 2, characterized in that, The two sets of sliders (503) are slidably connected to the bottom of the inner wall of the worktable (1), and the two sets of sliders (503) are arranged perpendicular to each other. The other two sets of guide posts (504) are fixed to the top of the sliders (503). The guide posts (504) at the top of the sliders (503) are slidably engaged with the guide grooves. The two connecting blocks (505) are fixed to the top of the sliders (503).

5. A positioning device for automotive injection molding dies according to claim 1, characterized in that, The positioning mechanism (6) includes a mounting plate (601), a sleeve (602), a limiting rod (603), a screw (604), a handwheel (605), a pressing rod (606), a positioning plate (607), a limiting plate (608), and a spring (609), with the mounting plate (601) mounted on one side of the connecting block (505).

6. The positioning device for a molding die of an injection-molded part for a vehicle according to claim 5, characterized by The sleeve (602) is fixed to one side of the mounting plate (601). A limiting hole passes through one side of the mounting plate (601). A limiting rod (603) is slidably connected to the inner wall of the limiting hole. A limiting plate (608) is fixed to one end of the limiting rod (603). A screw (604) passes through one side of the mounting plate (601), and one end of the screw (604) is fixedly connected to one side of the limiting plate (608). A handwheel (605) is rotatably connected to one side of the mounting plate (601), and the handwheel (605) is threadedly connected to the outer wall of the screw (604).

7. The positioning device for a molding die of an injection-molded part for a vehicle according to claim 5, characterized by One end of the spring (609) is fixed to the inner wall of the sleeve (602), the extrusion rod (606) is fixed to the other end of the spring (609), and the extrusion rod (606) is inserted into the inner wall of the sleeve (602). The positioning plate (607) is fixed to one end of the extrusion rod (606).

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