Machine tool driving wheel structure capable of guiding suction of swarf

Abstract

The utility model relates to machine tool technical field especially can suck the machine tool drive wheel structure of waste chip orientation, including main shaft and drive wheel, main shaft is connected with drive wheel key, drive wheel is internally hollow and is provided, the outside of drive wheel is provided with a plurality of circular array regular distribution's chip suction port, is equipped with filter assembly in chip suction port, the inner chamber of drive wheel is equipped with a plurality of spiral chip guide plate, and drive wheel is equipped with chip suction assembly away from the side of main shaft, filter assembly includes fixed net frame and movable net frame, and the inboard fixed connection of fixed net frame and movable net frame has filter soft net, and movable net frame is symmetrically arranged, in the utility model, the scheme will suck the chip part and drive wheel integration, only through the chip guide pipe connection negative pressure device of end, ensure drive wheel high -speed rotation, and the chip suction pipeline has no winding, collision etc. interference problem, need not for avoiding pipeline adjustment machine tool layout, and adaptation various machine tool's installation space demand.

Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, specifically to a machine tool drive wheel structure that can suck up and guide waste chips. Background Technology

[0002] Machine tools, also known as machining tools, are mechanical equipment used to process workpieces. They use mechanical means such as cutting, grinding, drilling, and tapping to process raw materials or semi-finished products into parts or components with specific shapes, sizes, and surface qualities. Machine tools are an indispensable basic equipment in modern industrial production and are widely used in many fields such as machinery manufacturing, automobiles, aerospace, mold manufacturing, and electronic equipment. The machine tool drive wheel is the core load-bearing component in the machine tool transmission system responsible for transmitting power and driving the operation of key moving parts. The drive wheel needs to be precisely matched with the matching transmission components. Its machining accuracy and assembly accuracy directly determine the positioning accuracy and machining error of the machine tool. It is a key transmission component to ensure the efficient and accurate operation of the machine tool. In machine tool drive wheel operation scenarios, traditional drive wheels mostly only have the function of power transmission. The metal waste generated during processing is prone to accumulate on the machine tool guide rails, worktable surface and around the drive wheel. Not only does it require frequent manual cleaning, but it may also cause component wear due to waste entering the gap between the drive wheel and the spindle. If an external chip suction device is used, additional chip suction pipelines are required, which may interfere with the rotation of the drive wheel. Therefore, to address the above problems, a machine tool drive wheel structure that can suction and guide waste is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a machine tool drive wheel structure that can suck up and guide waste chips, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A machine tool drive wheel structure for suction and guiding waste chips includes a spindle and a drive wheel. The spindle is keyed to the drive wheel. The drive wheel is hollow inside. Multiple suction ports arranged in a circular array are opened on the outer side of the drive wheel. A filter assembly is provided in each suction port. Multiple spiral guide plates are provided in the inner cavity of the drive wheel. The suction assembly is located on the side of the drive wheel away from the spindle. The filter assembly includes a fixed mesh frame and a movable mesh frame. A filter soft screen is fixedly connected to the inner side of the fixed mesh frame and the movable mesh frame. The movable mesh frames are symmetrically arranged, and the fixed mesh frame is located between the two movable mesh frames. A movable groove is opened at the end of the movable mesh frame near the fixed mesh frame. The movable mesh frame is sleeved on the fixed mesh frame through the movable groove. A return spring is provided in the movable groove. A snap-fit ​​structure is provided between the movable mesh frame and the suction port.

[0005] As a further optimization of this utility model, one end of the reset spring is fixedly connected to the inner end face of the movable groove, and the other end of the reset spring is fixedly connected to the end of the fixed mesh frame.

[0006] As a further optimization of this utility model, a pinching block is fixedly connected to the outer end of the movable mesh frame near the fixed mesh frame, and the height of the pinching block is adapted to the height of the chip suction port.

[0007] As a further optimization of this utility model, the snap-fit ​​structure includes a snap-fit ​​insert plate and a snap-fit ​​slot. The snap-fit ​​insert plate is fixedly installed on the end of the movable mesh frame away from the fixed mesh frame, and the snap-fit ​​slot is opened on the inner end face of the chip suction port. The snap-fit ​​insert plate and the snap-fit ​​slot are positioned correspondingly and matched in specifications.

[0008] As a further optimization of this utility model, the width of the spiral chip guide plate is consistent with the internal width of the drive wheel, and the spiral chip guide plate is fixedly welded to the inner end face of the drive wheel.

[0009] As a further optimization of this utility model, the number of spiral chip guide plates and chip suction ports are equal, one end of the spiral chip guide plate corresponds to an adjacent chip suction port, and the other end of the spiral chip guide plate corresponds to the chip suction assembly.

[0010] As a further optimization of this utility model, the chip suction assembly includes a chip guide opening located at the end of the drive wheel away from the main shaft. The chip guide opening is coaxially arranged with the drive wheel and the main shaft, and one end of the spiral chip guide plate corresponds to the chip guide opening.

[0011] As a further optimization of this utility model, the chip guide port is connected to a chip suction pipe, the chip suction pipe is connected to the chip guide port via a rotary joint, the other end of the rotary joint is connected to the chip guide pipe, and the chip guide pipe is externally connected to a negative pressure device.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, compared to the traditional external chip suction device which requires additional piping, the chip suction channel (drive wheel cavity), chip guide component (spiral chip guide plate) and drive wheel are integrated into one unit. The negative pressure device is connected only through the chip guide pipe at the end, and the chip suction pipe and chip guide pipe can be flexibly rotated and coordinated by means of a rotary joint. This ensures that when the drive wheel rotates at high speed, there are no interference problems such as entanglement or collision of the chip suction pipe. There is no need to adjust the machine tool layout to avoid the pipe, and it is suitable for the installation space requirements of various machine tools. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is an exploded view of the drive wheel of this utility model; Figure 6 This is a cross-sectional view of the drive wheel of this utility model; Figure 7 This utility model Figure 6 Enlarged view of point A; Figure 8 This is a schematic diagram of the structure of the filter assembly of this utility model; Figure 9 This is a cross-sectional view of the filter assembly of this utility model; Figure 10 This utility model Figure 9 Enlarged view of point B.

[0014] In the diagram: 1. Main shaft; 2. Drive wheel; 3. Dust suction port; 4. Filter assembly; 41. Fixed mesh frame; 42. Movable mesh frame; 43. Filter screen; 44. Movable groove; 45. Return spring; 46. Kneading block; 47. Snap-fit ​​structure; 471. Snap-fit ​​insert plate; 472. Snap-fit ​​slot; 5. Spiral dust guide plate; 6. Dust suction assembly; 61. Dust guide port; 62. Dust suction pipe; 63. Rotary joint; 64. Dust guide pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Please see Figures 1-10 This utility model provides a technical solution: A machine tool drive wheel structure capable of sucking up and guiding waste chips includes a spindle 1 and a drive wheel 2. The spindle 1 and the drive wheel 2 are keyed together. The drive wheel 2 is hollow inside. Multiple chip suction ports 3 are arranged in a circular array on the outer side of the drive wheel 2. A filter assembly 4 is provided in the chip suction port 3. Multiple spiral chip guide plates 5 are provided in the inner cavity of the drive wheel 2. A chip suction assembly 6 is provided on the side of the drive wheel 2 away from the spindle 1. The filter assembly 4 includes a fixed mesh frame 41 and a movable mesh frame 42. A filter soft mesh 43 is fixedly connected to the inner side of the fixed mesh frame 41 and the movable mesh frame 42. The movable mesh frames 42 are symmetrically arranged, and the fixed mesh frame 41 is located between the two movable mesh frames 42. A movable groove 44 is provided at the end of the movable mesh frame 42 near the fixed mesh frame 41. The movable mesh frame 42 is sleeved on the fixed mesh frame 41 through the movable groove 44. A return spring 45 is provided in the movable groove 44. A snap-fit ​​structure 47 is provided between the movable mesh frame 42 and the chip suction port 3.

[0018] It should be noted that: the spindle 1 serves as the power input of the machine tool and the mounting reference for the drive wheel 2. The drive wheel 2 is a hollow cylindrical structure with sufficient space reserved in the inner cavity and wall thickness to install the spiral chip guide plate 5 and the chip suction assembly 6. Its hollow design not only reduces its own weight (reduces the load on the spindle 1), but also serves as a temporary storage and conveying channel for waste chips, realizing the integration of "driving" and "chip suction" functions. Furthermore, the chip suction ports 3 are arranged in a circular array along the outer side of the drive wheel 2. The position of the chip suction ports 3 corresponds to the machining area of ​​the machine tool, ensuring that when the drive wheel 2 rotates, each chip suction port 3 can evenly cover the chip generation area. The airflow formed by negative pressure is used to suck the chips into the inner cavity of the drive wheel 2, avoiding the accumulation of chips on the machine tool guide rail and worktable. The filter component 4 acts as a "filter barrier" to prevent large particles of impurities (such as metal blocks and machining residues) from entering the inner cavity of the drive wheel 2 and blocking the chip guide channel. As a further implementation of this solution, one end of the return spring 45 is fixedly connected to the inner end face of the movable groove 44, and the other end of the return spring 45 is fixedly connected to the end of the fixed mesh frame 41. In the above configuration, the return spring 45 can be compressed and stored when the fixed mesh frame 41 is retracted and installed, and provide a rebound force after the fixed mesh frame 41 stops retracting. As a further implementation of this solution, a pinching block 46 is fixedly connected to the end of the movable mesh frame 42 near the fixed mesh frame 41. The height of the pinching block 46 is adapted to the height of the chip suction port 3. In the above setting, the pinching block 46 can facilitate the operator to shrink and pinch the fixed mesh frame 41, improving the convenience of disassembly and assembly. As a further implementation of this solution, the snap-fit ​​structure 47 includes a snap-fit ​​insert plate 471 and a snap-fit ​​slot 472. The snap-fit ​​insert plate 471 is fixedly installed on the movable mesh frame 42 at the end away from the fixed mesh frame 41. The snap-fit ​​slot 472 is opened on the inner end face of the dust suction port 3. The snap-fit ​​insert plate 471 and the snap-fit ​​slot 472 are positioned correspondingly and matched in specifications. In the above configuration, when the filter assembly 4 is installed in place, the snap-fit ​​insert plate 471 will be inserted into the snap-fit ​​slot 472 by the rebound force of the return spring 45, thereby fixing the filter assembly 4 to the dust suction port 3 and preventing the filter assembly 4 from falling off due to centrifugal force when the drive wheel 2 rotates at high speed. As a further implementation of this solution, the width of the spiral chip guide plate 5 is consistent with the internal width of the drive wheel 2, and the spiral chip guide plate 5 is fixedly welded to the inner end face of the drive wheel 2. The number of spiral chip guide plates 5 and the number of chip suction ports 3 are equal. One end of the spiral chip guide plate 5 corresponds to the adjacent chip suction port 3, and the other end of the spiral chip guide plate 5 corresponds to the chip suction assembly 6. It should be noted that when the drive wheel 2 rotates, the spiral chip guide plate 5 rotates synchronously with it. The thrust of the spiral surface pushes the sucked-in waste chips axially towards the chip guide port 61. Compared with the straight channel chip guide, the spiral structure can prevent waste chips from accumulating at the bottom of the drive wheel 2 due to gravity, thus improving the chip guiding efficiency. At the same time, the spiral chip guide plate 5 can also act as a "reinforcing rib" to improve the torsional strength of the drive wheel 2 and prevent the structural weakening caused by the hollow design of the drive wheel 2. As a further implementation of this solution, the chip suction assembly 6 includes a chip guide port 61 opened at the end of the drive wheel 2 away from the main shaft 1. The chip guide port 61 is coaxially arranged with the drive wheel 2 and the main shaft 1, and one end of the spiral chip guide plate 5 corresponds to the chip guide port 61. A chip suction pipe 62 is connected in the chip guide port 61. The chip suction pipe 62 is connected to the chip guide port 61 through a rotary joint 63. The other end of the rotary joint 63 is connected to a chip guide pipe 64. The chip guide pipe 64 is externally connected to a negative pressure device. It should be noted that the chip guide port 61 is located at the center of the end of the drive wheel 2 away from the main shaft 1. It is a circular opening and is coaxially set with the drive wheel 2 and the main shaft 1. This ensures that the waste chips pushed by the spiral chip guide plate 5 can be accurately collected at the chip guide port 61, avoiding the accumulation of waste chips at the end of the drive wheel 2. The waste chips collected at the chip guide port 61 will enter the chip suction pipe 62. The rotary joint 63 adopts a double-sealed structure, which can realize the relative rotation between the chip suction pipe 62 and the drive wheel 2 when the drive wheel 2 rotates, and also prevent negative pressure leakage, ensuring stable airflow for chip suction. The chip guide pipe 64 is connected to an external negative pressure device (such as an industrial vacuum cleaner). The airflow generated by the negative pressure transports the waste chips in the inner cavity of the drive wheel 2 through the chip guide port 61, the chip suction pipe 62, and the chip guide pipe 64 to the chip collection box, realizing the centralized collection and treatment of waste chips and preventing waste chips from scattering and polluting the working environment.

[0019] Work process: Start the machine tool, the spindle 1 drives the drive wheel 2 to rotate synchronously. The drive wheel 2 transmits power to the subsequent execution parts through the outer transmission teeth / friction surface. At the same time, the negative pressure device runs continuously. A stable negative pressure is formed in the hollow cavity of the drive wheel 2 through the chip guide pipe 64, rotary joint 63 and chip suction pipe 62. The negative pressure airflow is sucked in from the chip suction port 3 and covers the chip generation point in the machine tool processing area. The metal chips generated during the processing move towards the chip suction port 3 under the action of the negative pressure airflow and pass through the filter assembly 4. They are filtered by the filter soft screen 43 to intercept larger chip size and prevent larger particles from entering and clogging the subsequent chip guide channel. The airflow entering the inner cavity of the drive wheel 2 carries waste chips and contacts the spiral chip guide plate 5 synchronously as the drive wheel 2 rotates. The spiral chip guide plate 5 is welded and fixed to the inner end face of the drive wheel 2. When the drive wheel 2 rotates, its spiral surface generates axial thrust, pushing the waste chips along the path of "sinking port 3-spiral channel-chip guide port 61". Since the number of spiral chip guide plates 5 is equal to that of the sinking ports 3, and one end corresponds to the adjacent sinking port 3 and the other end corresponds to the chip guide port 61 (the center of the end of the drive wheel 2, coaxial with the main shaft 1), the waste chips can be prevented from accumulating at the bottom of the drive wheel 2 due to gravity. The chip guiding efficiency is greatly improved compared with the straight channel. The waste chips pushed to the chip guide port 61 are drawn into the chip suction pipe 62 under the traction of the negative pressure airflow. They are then transported to the chip collection box of the negative pressure device through the rotary joint 63 (which allows the chip suction pipe 62 to rotate with the drive wheel 2 without negative pressure leakage) and the chip guide pipe 64, thus realizing the centralized collection of waste chips. Throughout the process, the hollow design of the drive wheel 2 does not affect the power transmission and provides a channel for the conveying of waste chips. The spiral chip guide plate 5 can also enhance the torsional strength of the drive wheel 2, realizing the coordinated operation of the "drive" and "chip suction" functions. It is worth noting that the filter assembly 4 is designed for easy disassembly. When cleaning and maintenance of the filter assembly 4 is required, the machine tool and negative pressure device should be turned off. After the drive wheel 2 has completely stopped rotating, the operator should pinch the pinch block 46 at the chip suction port 3 and squeeze it towards the fixed mesh frame 41. This will cause the movable mesh frame 42 to stretch the return spring 45 and reduce the overall area of ​​the filter assembly 4. At this time, the snap-fit ​​plate 471 can be dislodged from the snap-fit ​​slot 472. Then, the fixed mesh frame 41 and the movable mesh frame 42 can be removed as a whole. The principle is the same when installing. Ensure that the snap-fit ​​plate 471 re-fits the snap-fit ​​slot 472 and the movable mesh frame 42 completely covers the chip suction port 3 under the action of the return spring 45.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machine tool drive wheel structure capable of sucking up and guiding waste chips, comprising a spindle (1) and a drive wheel (2), characterized in that: The main shaft (1) is keyed to the drive wheel (2). The drive wheel (2) is hollow inside. Multiple chip suction ports (3) are arranged in a circular array on the outer side of the drive wheel (2). A filter assembly (4) is provided in the chip suction port (3). Multiple spiral chip guide plates (5) are provided in the inner cavity of the drive wheel (2). A chip suction assembly (6) is provided on the side of the drive wheel (2) away from the main shaft (1). The filter assembly (4) includes a fixed mesh frame (41) and a movable mesh frame (42). A filter mesh (43) is fixedly connected to the inner side of the fixed mesh frame (41) and the movable mesh frame (42). The movable mesh frames (42) are symmetrically arranged, and the fixed mesh frame (41) is located between the two movable mesh frames (42). The movable mesh frame (42) has a movable groove (44) at the end near the fixed mesh frame (41). The movable mesh frame (42) is sleeved on the fixed mesh frame (41) through the movable groove (44). A return spring (45) is provided in the movable groove (44). A snap-fit ​​structure (47) is provided between the movable mesh frame (42) and the chip suction port (3).

2. The machine tool drive wheel structure with waste chip suction and guidance according to claim 1, characterized in that: One end of the reset spring (45) is fixedly connected to the inner end face of the movable groove (44), and the other end of the reset spring (45) is fixedly connected to the end of the fixed mesh frame (41).

3. The machine tool drive wheel structure with waste chip suction and guidance according to claim 1, characterized in that: A pinching block (46) is fixedly connected to the end of the movable mesh frame (42) near the fixed mesh frame (41), and the height of the pinching block (46) is adapted to the height of the chip suction port (3).

4. The machine tool drive wheel structure capable of sucking up and guiding waste chips according to claim 1, characterized in that: The snap-fit ​​structure (47) includes a snap-fit ​​insert plate (471) and a snap-fit ​​slot (472). The snap-fit ​​insert plate (471) is fixedly installed on the movable mesh frame (42) at the end away from the fixed mesh frame (41). The snap-fit ​​slot (472) is opened on the inner end face of the chip suction port (3). The snap-fit ​​insert plate (471) and the snap-fit ​​slot (472) are positioned correspondingly and matched in specifications.

5. The machine tool drive wheel structure capable of sucking up and guiding waste chips according to claim 1, characterized in that: The width of the spiral chip guide plate (5) is consistent with the internal width of the drive wheel (2), and the spiral chip guide plate (5) is fixedly welded to the inner end face of the drive wheel (2).

6. The machine tool drive wheel structure with waste chip suction and guidance according to claim 1, characterized in that: The number of spiral chip guide plates (5) is equal to the number of chip suction ports (3). One end of the spiral chip guide plate (5) corresponds to the adjacent chip suction port (3), and the other end of the spiral chip guide plate (5) corresponds to the chip suction assembly (6).

7. The machine tool drive wheel structure with waste chip suction and guidance according to claim 1, characterized in that: The chip suction assembly (6) includes a chip guide port (61) located at the end of the drive wheel (2) away from the main shaft (1). The chip guide port (61) is coaxial with the drive wheel (2) and the main shaft (1), and one end of the spiral chip guide plate (5) corresponds to the chip guide port (61).

8. The machine tool drive wheel structure with a waste chip suction and guiding function according to claim 7, characterized in that: The chip guide port (61) is connected to a chip suction pipe (62), and the chip suction pipe (62) is connected to the chip guide port (61) via a rotary joint (63). The other end of the rotary joint (63) is connected to a chip guide pipe (64), and the chip guide pipe (64) is connected to a negative pressure device.

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