An automatic position-adjusting plastic mold surface milling machine

Abstract

The application provides a plastic mold surface grinding machine capable of automatically adjusting position and relates to the field of plastic mold surface grinding. The top end of the grinding machine driving frame is fixedly connected with the bottom end of a grinding bin, the inner top wall of the grinding bin is fixedly connected with the top end of a grinding head driving frame, the inner bottom wall of the grinding machine driving frame is fixedly connected with the bottom end of a driving assembly, the top end of the driving assembly is fixedly connected with the bottom end of a workpiece limiting mechanism, and the inner wall of the workpiece limiting mechanism is fixedly connected with the bottom end of an ejection assembly. One side of the fixed plate extrudes the arc surface of the extrusion arc-shaped block, the extrusion arc-shaped block is extruded to drive the moving plate to extrude the connecting spring, the moving plate is moved to drive the clamping plate to clamp the outer wall of the workpiece, the driving of the driving motor and the extrusion of the clamping plate facilitate the stability of the device in plastic mold processing, and the working pressure of workers is reduced.

Description

Technical Field

[0001] This invention relates to the field of surface milling technology for multiple plastic molds, and more particularly to a plastic mold surface milling machine with automatic position adjustment. Background Technology

[0002] Plastic molds are a type of combined mold used for compression molding, extrusion molding, injection molding, blow molding, and low-foaming molding. The coordinated changes of the mold's punch, die, and auxiliary molding system can produce a series of plastic parts of different shapes and sizes. When producing plastic molds, a milling machine is needed to mill the mold surface. The milling machine adopts imported PLC and CNC servo control, and the position of the milling head can be automatically adjusted through guide rails inside the milling machine.

[0003] In the existing technology, traditional plastic mold surface milling machines require workers to operate clamping and limiting mechanisms to stabilize the workpiece when placing it, which increases the workload of the workers. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic position adjustment surface milling machine for plastic molds, in order to solve the problem mentioned in the background art that requires workers to operate clamping and limiting mechanisms to stabilize the workpiece, thereby increasing the workload of workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a milling machine drive frame, the top end of which is fixedly connected to the bottom end of the milling chamber; the inner top wall of the milling chamber is fixedly connected to the top end of the milling head drive frame; the inner bottom wall of the milling machine drive frame is fixedly connected to the bottom end of a drive assembly; the drive assembly includes a fixed platform, a fixed plate, a moving groove, a drive motor, a threaded rod, a sliding groove, a trapezoidal block, and a threaded block; the top end of the drive assembly is fixedly connected to the bottom end of a workpiece limiting mechanism; the workpiece limiting mechanism includes a workpiece placement platform, a limiting slide groove, a connecting spring, a moving plate, a pressing arc block, a clamping plate, and a spring groove; the inner wall of the workpiece limiting mechanism is fixedly connected to the bottom end of an ejection assembly; the ejection assembly includes a return spring, a limiting plate, and an ejection rod.

[0006] In a preferred embodiment, both sides of the top of the fixed platform are fixedly connected to the bottom of the fixed plate, and one end of the fixed plate is set in an arc shape. The fixed platform has a moving groove inside, and one side of the fixed platform is fixedly connected to one end of the drive motor. The output end of the drive motor is fixedly connected to one end of the threaded rod through a coupling.

[0007] In a preferred embodiment, a bearing is provided on the outer wall of the end of the threaded rod away from the drive motor, and the outer wall of the end of the threaded rod away from the drive motor is rotatably connected to the inner wall of the moving groove through a rotating shaft. A sliding groove is provided inside the fixed platform, and the inner bottom wall of the sliding groove near the drive motor is fixedly connected to the bottom end of the trapezoidal block. The outer wall of the threaded rod is threadedly connected to the inner wall of the threaded block.

[0008] In a preferred embodiment, the bottom end of the workpiece placement platform is fixedly connected to the top end of the threaded block, and a limiting groove is provided inside the workpiece placement platform. A pressing port is provided on one side of the inner wall of the limiting groove, and the inner wall of the limiting groove is fixedly connected to one end of the connecting spring.

[0009] In a preferred embodiment, the other end of the connecting spring is fixedly connected to one side of the moving plate, and the side of the moving plate away from the connecting spring is fixedly connected to the side of the extrusion arc block. The top end of the moving plate is fixedly connected to the bottom end of the clamping plate, and a spring groove is provided inside the workpiece placement table.

[0010] In a preferred embodiment, the spring groove has limit openings at both the upper and lower ends, the inner bottom wall of the spring groove is fixedly connected to the bottom end of the reset spring, the top end of the reset spring is fixedly connected to the bottom end of the limit plate, and one side of the limit plate is fixedly connected to both sides of the ejector rod.

[0011] In a preferred embodiment, the outer wall of the ejector rod is movably connected to the inner wall of the limiting port, and the outer wall of the limiting plate is movably connected to the inner wall of the spring groove. The bottom end of the ejector rod is movably abutting against the top of the trapezoidal block.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0013] 1. In this invention, the drive motor rotates the threaded rod, which in turn moves the threaded block. The movement of the threaded block moves the workpiece placement table toward the inner wall of the milling chamber. As the workpiece placement table moves, the extrusion arc block moves toward one side of the fixed plate, causing one side of the fixed plate to press against the arc surface of the extrusion arc block. The extrusion arc block, under pressure, moves the moving plate to press against the connecting spring. The moving plate then moves the clamping plate to clamp and stabilize the outer wall of the workpiece. Through the drive of the drive motor and the pressing of the clamping plate, the device facilitates stable processing of plastic molds and reduces the workload of workers.

[0014] 2. In this invention, as the workpiece placement table moves, the bottom end of the ejector rod moves away from the top of the trapezoidal block. Since the bottom end of the connecting spring is initially squeezed by the trapezoidal block, the return spring is in a stretched state. When the ejector rod moves away from the trapezoidal block, the return spring resets and drives the limiting plate downward, thereby driving the ejector rod into the interior of the sliding groove. When it is necessary to remove the processed workpiece, the drive motor is turned on to output the drive motor direction, thereby driving the workpiece placement table to move outward from the milling chamber. During the movement, the return spring first drives the clamping plate away from the outer wall of the workpiece, and at the same time, the top end of the trapezoidal block lifts the ejector rod. The lifted ejector rod lifts the workpiece, making it easier for the operator to remove the workpiece. This facilitates the removal of the workpiece from above the workpiece placement table and solves the problem of difficulty in removing the workpiece due to its contact with the top of the workpiece placement table. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a plastic mold surface milling machine with automatic position adjustment provided by the present invention;

[0016] Figure 2 A partial sectional view of the milling chamber of a plastic mold surface milling machine with automatic position adjustment provided by the present invention;

[0017] Figure 3 A cross-sectional view of the drive assembly of an automatically position-adjusting plastic mold surface milling machine provided by the present invention;

[0018] Figure 4 A cross-sectional view of a workpiece limiting mechanism for an automatically position-adjusting plastic mold surface milling machine provided by the present invention;

[0019] Figure 5 This is a cross-sectional view of the ejector assembly of an automatically position-adjusting plastic mold surface milling machine provided by the present invention.

[0020] Legend:

[0021] 1. Milling machine drive frame; 2. Milling chamber; 3. Milling head drive frame; 4. Drive assembly; 401. Fixed table; 402. Fixed plate; 403. Moving groove; 404. Drive motor; 405. Threaded rod; 406. Sliding groove; 407. Trapezoidal block; 408. Threaded block; 5. Workpiece limiting mechanism; 501. Workpiece placement table; 502. Limiting slide groove; 503. Connecting spring; 504. Moving plate; 505. Extrusion arc block; 506. Clamping plate; 507. Spring groove; 6. Ejection assembly; 601. Return spring; 602. Limiting plate; 603. Ejection rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-5 The present invention provides a technical solution comprising: a milling machine drive frame 1, the top end of the milling machine drive frame 1 being fixedly connected to the bottom end of the milling chamber 2, the inner top wall of the milling chamber 2 being fixedly connected to the top end of the milling head drive frame 3, and the inner bottom wall of the milling machine drive frame 1 being fixedly connected to the bottom end of the drive assembly 4. The drive assembly 4 includes a fixed platform 401, a fixed plate 402, a moving groove 403, a drive motor 404, a threaded rod 405, a sliding groove 406, a trapezoidal block 407, and a threaded block 408. The top end of the drive assembly 4 is fixedly connected to the bottom end of the workpiece limiting mechanism 5. The workpiece limiting mechanism 5 includes a workpiece placement platform 501, a limiting slide groove 502, a connecting spring 503, a moving plate 504, a pressing arc block 505, a clamping plate 506, and a spring groove 507. The inner wall of the workpiece limiting mechanism 5 is fixedly connected to the bottom end of the ejection assembly 6. The ejection assembly 6 includes a reset spring 601, a limiting plate 602, and an ejection rod 603.

[0024] In one embodiment, the top two sides of the fixed platform 401 are fixedly connected to the bottom of the fixed plate 402, and one end of the fixed plate 402 is set as arc. The fixed platform 401 has a moving groove 403 inside, and one side of the fixed platform 401 is fixedly connected to one end of the drive motor 404. The output end of the drive motor 404 is fixedly connected to one end of the threaded rod 405 through a coupling.

[0025] Specifically: Turn on the drive motor 404 to drive the threaded rod 405 to rotate. The rotation of the threaded rod 405 drives the threaded block 408 to move. The movement of the threaded block 408 drives the workpiece placement table 501 to move towards the inner wall of the milling chamber 2.

[0026] In one embodiment, a bearing is provided on the outer wall of the end of the threaded rod 405 away from the drive motor 404, and the outer wall of the end of the threaded rod 405 away from the drive motor 404 is rotatably connected to the inner wall of the moving groove 403 through a rotating shaft. A sliding groove 406 is provided inside the fixed platform 401, and the inner bottom wall of the sliding groove 406 near the drive motor 404 is fixedly connected to the bottom end of the trapezoidal block 407. The outer wall of the threaded rod 405 is threadedly connected to the inner wall of the threaded block 408.

[0027] Specifically: The trapezoidal block 407 facilitates the lifting of the workpiece.

[0028] In one embodiment, the bottom end of the workpiece placement table 501 is fixedly connected to the top end of the threaded block 408, and the workpiece placement table 501 is provided with a limiting groove 502, and a pressing port is provided on one side of the inner wall of the limiting groove 502. The inner wall of the limiting groove 502 is fixedly connected to one end of the connecting spring 503.

[0029] Specifically: The limiting slide 502 facilitates the movement and limiting of the moving plate 504.

[0030] In one embodiment, the other end of the connecting spring 503 is fixedly connected to one side of the moving plate 504, and the side of the moving plate 504 away from the connecting spring 503 is fixedly connected to one side of the extrusion arc block 505. The top end of the moving plate 504 is fixedly connected to the bottom end of the clamping plate 506, and a spring groove 507 is provided inside the workpiece placement table 501.

[0031] Specifically: the extrusion arc block 505 is extruded, which drives the moving plate 504 to move and extrude the connecting spring 503. The movement of the moving plate 504 drives the clamping plate 506 to clamp and stabilize the outer wall of the workpiece.

[0032] In one embodiment, the upper and lower ends of the spring groove 507 are provided with limit openings, and the inner bottom wall of the spring groove 507 is fixedly connected to the bottom end of the reset spring 601, the top end of the reset spring 601 is fixedly connected to the bottom end of the limit plate 602, and one side of the limit plate 602 is fixedly connected to both sides of the ejector rod 603 respectively.

[0033] Specifically: the reset spring 601 causes the limiting plate 602 to move downward, thereby causing the ejector rod 603 to enter the sliding groove 406.

[0034] In one embodiment, the outer wall of the ejector rod 603 is movably connected to the inner wall of the limiting port, and the outer wall of the limiting plate 602 is movably connected to the inner wall of the spring groove 507, and the bottom end of the ejector rod 603 is movably abutting against the top of the trapezoidal block 407.

[0035] Specifically: the top of the trapezoidal block 407 lifts the workpiece ejection rod 603, thereby facilitating the removal of the workpiece by the operator.

[0036] Working Principle: The plastic mold workpiece is placed above the workpiece placement table 501, so that the workpiece is positioned between the clamping plates 506. The drive motor 404 is turned on, driving the threaded rod 405 to rotate. The rotation of the threaded rod 405 drives the threaded block 408 to move. The movement of the threaded block 408 causes the workpiece placement table 501 to move towards the inner wall of the milling chamber 2. As the workpiece placement table 501 moves, the extrusion arc block 505 moves towards one side of the fixed plate 402, so that one side of the fixed plate 402 is pressed against the arc surface of the extrusion arc block 505. The extrusion arc block 505 is compressed, causing the moving plate 504 to move and compress the connecting spring 503. The movement of the moving plate 504 causes the clamping plate 506 to clamp and stabilize the outer wall of the workpiece. The workpiece enters the interior of the milling chamber 2, and is milled by the milling head drive frame 3. At the same time, the milling head drive frame 3 automatically adjusts... When the workpiece placement table 501 moves, the bottom end of the ejector rod 603 moves away from the top of the trapezoidal block 407. Since the bottom end of the connecting spring 503 is squeezed by the trapezoidal block 407 in the initial state, the return spring 601 is in a stretched state. When the ejector rod 603 moves away from the trapezoidal block 407, the return spring 601 resets and drives the limiting plate 602 to move downward, thereby driving the ejector rod 603 into the interior of the sliding groove 406. When it is necessary to remove the processed workpiece, the drive motor 404 is turned on to output in the direction of the drive motor 404, thereby driving the workpiece placement table 501 to move outward from the milling chamber 2. During the movement, the return spring 503 first drives the clamping plate 506 away from the outer wall of the workpiece, and at the same time, the top end of the trapezoidal block 407 lifts the ejector rod 603. The lifted ejector rod 603 lifts the workpiece, making it easier for the operator to remove the workpiece.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A plastic mold surface milling machine with automatic position adjustment, characterized in that, include: A milling machine drive frame (1) is provided, the top end of which is fixedly connected to the bottom end of a milling chamber (2). The inner top wall of the milling chamber (2) is fixedly connected to the top end of a milling head drive frame (3). The inner bottom wall of the milling machine drive frame (1) is fixedly connected to the bottom end of a drive assembly (4). The drive assembly (4) includes a fixed platform (401), a fixed plate (402), a moving groove (403), a drive motor (404), a threaded rod (405), a sliding groove (406), a trapezoidal block (407), and a threaded block (408). The top end of the drive assembly (4) is fixedly connected to the bottom end of a workpiece limiting mechanism (5). The workpiece limiting mechanism (5) includes a workpiece placement platform (50). 1) Limiting groove (502), connecting spring (503), moving plate (504), extrusion arc block (505), clamping plate (506) and spring groove (507), the inner wall of the workpiece limiting mechanism (5) is fixedly connected to the bottom end of the ejection assembly (6), the ejection assembly (6) includes a return spring (601), limiting plate (602) and ejection rod (603), the top two sides of the fixed platform (401) are fixedly connected to the bottom end of the fixed plate (402), and one end of the fixed plate (402) is set as arc, the fixed platform (401) has a moving groove (403) inside, and one side of the fixed platform (401) is fixedly connected to one end of the drive motor (404), so The output end of the drive motor (404) is fixedly connected to one end of the threaded rod (405) via a coupling. A bearing is provided on the outer wall of the end of the threaded rod (405) away from the drive motor (404), and the outer wall of the end of the threaded rod (405) away from the drive motor (404) is rotatably connected to the inner wall of the moving groove (403) via a rotating shaft. A sliding groove (406) is provided inside the fixed platform (401), and the inner bottom wall of the sliding groove (406) near the drive motor (404) is fixedly connected to the bottom end of the trapezoidal block (407). The outer wall of the threaded rod (405) is threadedly connected to the inner wall of the threaded block (408). The bottom end of the workpiece placement platform (501) is connected to the threaded block (408). The top of the spring (601) is fixedly connected to the bottom of the limiting plate (602), and the inner wall of the limiting plate (502) is provided with an extrusion port. The inner wall of the limiting plate (502) is fixedly connected to one end of the connecting spring (503). The top of the reset spring (601) is fixedly connected to the bottom of the limiting plate (602), and one side of the limiting plate (602) is fixedly connected to both sides of the ejector rod (603). The outer wall of the ejector rod (603) is movably connected to the inner wall of the limiting port, and the outer wall of the limiting plate (602) is movably connected to the inner wall of the spring groove (507). The bottom end of the ejector rod (603) is movably abutted against the top of the trapezoidal block (407).

2. The plastic mold surface milling machine with automatic position adjustment according to claim 1, characterized in that: The other end of the connecting spring (503) is fixedly connected to one side of the moving plate (504), and the side of the moving plate (504) away from the connecting spring (503) is fixedly connected to the side of the extrusion arc block (505).

3. The plastic mold surface milling machine with automatic position adjustment according to claim 2, characterized in that: The top end of the movable plate (504) is fixedly connected to the bottom end of the clamping plate (506), and a spring groove (507) is provided inside the workpiece placement table (501).

4. The plastic mold surface milling machine with automatic position adjustment according to claim 3, characterized in that: The spring groove (507) has limit openings at both the upper and lower ends, and the inner bottom wall of the spring groove (507) is fixedly connected to the bottom end of the reset spring (601).

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