Drive mechanism and machine tool

Abstract

The utility model discloses a driving mechanism and a machine tool. The driving mechanism comprises a motor, a lead screw, a nut and a connecting base. The lead screw extends in the first direction. The motor is in driving connection with the lead screw. And a first protective cover. The nut is in threaded connection with the screw rod; the connecting seat is connected with the nut, a first through hole is formed in the connecting seat, and the first through hole extends in the first direction and penetrates through the connecting seat; the first protective cover is fixedly arranged, extends in the first direction and penetrates through the first through hole, and the first protective cover is located above the lead screw. A first through hole is formed in the connecting base, extends in the first direction and penetrates through the connecting base, so that a first protection cover extending in the first direction can penetrate through the first through hole and is arranged above the lead screw in a covering mode, the lead screw is protected, the risk that chippings and cutting fluid splash to the lead screw is reduced, the cleanliness of the lead screw is guaranteed, and the service life of the lead screw is prolonged. Therefore, the stability of movement of the main shaft is guaranteed, and the machining precision of the main shaft on a workpiece is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining equipment, in particular to a driving mechanism and a machine tool BACKGROUND

[0002] The spindle of the machine tool can translate and lift relative to the worktable, and the movement of the spindle is generally driven by a lead screw module. The spindle can process the workpiece on the worktable, and cutting fluid is sprayed on the spindle and the workpiece during the processing, and debris is generated during the processing. The high-speed rotation of the spindle during the processing process can easily throw the debris and the cutting fluid onto the lead screw of the lead screw module, affecting the stability of the lead screw and the nut in the lead screw module, and causing the spindle to move smoothly. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a driving mechanism which can reduce the risk of debris and cutting fluid falling onto the lead screw and ensure the stability of the lead screw and the nut.

[0004] The present application also provides a machine tool with the above driving mechanism.

[0005] According to the first aspect of the embodiment of the present application, the driving mechanism comprises a motor, a lead screw, a nut and a connecting seat.

[0006] The lead screw extends in a first direction, and the motor drives the lead screw; a first protective cover.

[0007] The nut is threadedly connected with the lead screw;

[0008] The connecting seat is connected with the nut, and the connecting seat is provided with a first through hole which extends in the first direction and penetrates through the connecting seat;

[0009] The first protective cover is fixedly arranged, extends in the first direction and penetrates through the first through hole, and is located above the lead screw.

[0010] According to the driving mechanism of the first aspect of the present application, the motor can drive the screw rod to rotate forward or reversely. Since the nut is threadedly connected with the screw rod and the connecting seat is connected with the nut, when the screw rod rotates, the nut can drive the connecting seat to move along the extension direction of the screw rod, i.e. the first direction. The connecting seat is used to mount the main shaft, and when the connecting seat moves along the first direction, it can drive the main shaft to move along the first direction. A first through hole is formed in the connecting seat and extends along the first direction and penetrates through the connecting seat, so that the first protective cover extending along the first direction can pass through the first through hole and cover the screw rod, thereby protecting the screw rod, reducing the risk of debris and cutting fluid splashing to the screw rod, ensuring the cleanliness of the screw rod, ensuring the stability of the cooperation between the screw rod and the nut, thereby ensuring the stability of the movement of the main shaft, and improving the machining precision of the workpiece by the main shaft.

[0011] According to some embodiments of the present application, the cross section of the first protective cover is in the shape of a circular arc.

[0012] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0013] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0014] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0015] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0016] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0017] According to some embodiments of the present application, the connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

[0018] According to the driving mechanism of the first aspect of the present application, the motor can drive the screw rod to rotate forward or reversely. Since the nut is threadedly connected with the screw rod and the connecting seat is connected with the nut, when the screw rod rotates, the nut can drive the connecting seat to move along the extension direction of the screw rod, i.e. the first direction. The connecting seat is used to mount the main shaft, and when the connecting seat moves along the first direction, it can drive the main shaft to move along the first direction. A first through hole is formed in the connecting seat and extends along the first direction and penetrates through the connecting seat, so that the first protective cover extending along the first direction can pass through the first through hole and cover the screw rod, thereby protecting the screw rod, reducing the risk of debris and cutting fluid splashing to the screw rod, ensuring the cleanliness of the screw rod, ensuring the stability of the cooperation between the screw rod and the nut, thereby ensuring the stability of the movement of the main shaft, and improving the machining precision of the workpiece by the main shaft.

[0019] The machine tool according to the second aspect embodiment of this application has at least the following beneficial effects: including all the beneficial effects of the drive mechanism of the first aspect embodiment, which will not be repeated here.

[0020] According to some embodiments of this application, it further includes: a base, a movable base, and a spindle, wherein the motor is fixed to the base, the movable base is slidably disposed on the connecting base along a second direction, the second direction intersecting the first direction, and the spindle is disposed on the movable base along the height direction.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the drive mechanism according to the first aspect of this application;

[0024] Figure 2 for Figure 1 A cross-sectional view of the drive mechanism in the middle;

[0025] Figure 3 for Figure 1 A cross-sectional view of the drive mechanism in another direction;

[0026] Figure 4 for Figure 1 A schematic diagram of the connecting seat in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of a machine tool according to a second aspect embodiment of this application.

[0028] Figure label:

[0029] Motor 110, lead screw 120, nut 130;

[0030] Connector 200, first through hole 210, mounting hole 220, second through hole 230;

[0031] First protective shield 300;

[0032] First mounting base 410, second mounting base 420;

[0033] Slide rail 510, slide block 520;

[0034] Second protective cover 600;

[0035] Frame size 700;

[0036] Mobile seat 800;

[0037] Main shaft 900. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, for the purpose of explanation, and are not to be understood as a limitation of the present application.

[0039] In the description of the present application, it is to be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the purpose of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0040] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, etc. is understood to include the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0042] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Reference Figures 1 to 4 According to the first aspect embodiment of the present application, the driving mechanism comprises a motor 110, a lead screw 120, a nut 130 and a connecting seat 200.

[0044] The lead screw 120 extends in a first direction, and the motor 110 drives the connecting lead screw 120; a first protective cover 300.

[0045] The nut 130 is threadedly connected with the screw rod 120.

[0046] The connecting seat 200 is connected with the nut 130, and the connecting seat 200 is provided with a first through hole 210 extending along a first direction and penetrating through the connecting seat 200.

[0047] The first protective cover 300 is fixedly arranged and extends along the first direction and penetrates through the first through hole 210, and the first protective cover 300 is located above the screw rod 120.

[0048] It can be understood that the motor 110 can drive the screw rod 120 to rotate forward or reversely, since the nut 130 is threadedly connected with the screw rod 120 and the connecting seat 200 is connected with the nut 130, thus, when the screw rod 120 rotates, the nut 130 can drive the connecting seat 200 to move along the extension direction of the screw rod 120, i.e. the first direction, and the connecting seat 200 is used for mounting the main shaft 900, and when the connecting seat 200 moves along the first direction, the connecting seat 200 can drive the main shaft 900 to move along the first direction. The first through hole 210 is provided on the connecting seat 200 and extends along the first direction and penetrates through the connecting seat 200, so that the first protective cover 300 extending along the first direction can penetrate through the first through hole 210 and cover the screw rod 120 above, thereby protecting the screw rod 120, reducing the risk of debris and cutting fluid splashing to the screw rod 120, ensuring the cleanliness of the screw rod 120, and ensuring the stability of the cooperation between the screw rod 120 and the nut 130, thereby ensuring the stability of the movement of the main shaft 900 and improving the machining precision of the workpiece by the main shaft 900. Moreover, the first protective cover 300 is fixedly arranged and penetrates through the first through hole 210, and when the connecting seat 200 moves along the first direction, the first protective cover 300 does not interfere with the movement of the connecting seat 200.

[0049] With reference to Figure 2 According to some embodiments of the present application, the cross section of the first protective cover 300 is arc-shaped.

[0050] It can be understood that the cross section of the first protective cover 300 is arc-shaped, and the screw rod 120 is located on the concave side of the first protective cover 300, so that the first protective cover 300 can shield the side surface of the screw rod 120 while covering the screw rod 120 above, thereby further improving the protection effect of the first protective cover 300 on the screw rod 120.

[0051] With reference to Figure 2 and Figure 4 According to some embodiments of the present application, the connecting seat 200 is provided with a mounting hole 220, the nut 130 is arranged in the mounting hole 220, and the first through hole 210 partially surrounds the mounting hole 220.

[0052] It can be understood that, by partially surrounding the mounting hole 220 with the first through hole 210, the first protective cover 300 is adapted to be in the shape of a circular arc, so that the first protective cover 300 can shield the side surface of the lead screw 120.

[0053] Specifically, the cross section of the mounting hole 220 is substantially in the shape of a C.

[0054] Referring to Figure 1 and Figure 3 , according to some embodiments of the present application, the driving mechanism further comprises a first mounting base 410 and a second mounting base 420, the motor 110 is fixed to the first mounting base 410, and the end of the lead screw 120 away from the motor 110 is rotationally connected to the second mounting base 420; the two ends of the first protective cover 300 are fixedly connected to the first mounting base 410 and the second mounting base 420, respectively.

[0055] It can be understood that, by supporting the motor 110 with the first mounting base 410 and supporting the end of the lead screw 120 away from the motor 110 with the second mounting base 420, and by connecting the end of the lead screw 120 to the motor 110, the motor 110 and the lead screw 120 are supported by the cooperation of the first mounting base 410 and the second mounting base 420, and the end of the lead screw 120 away from the motor 110 is rotationally connected to the second mounting base 420, so that the second mounting base 420 supports the lead screw 120 without affecting the rotation of the lead screw 120. Moreover, the two ends of the first protective cover 300 are fixedly connected to the first mounting base 410 and the second mounting base 420, respectively, so that the first mounting base 410 and the second mounting base 420 also serve to support and fix the first protective cover 300. Since the first mounting base 410 and the second mounting base 420 are used to connect the motor 110 and the end of the lead screw 120 away from the motor 110, respectively, the first protective cover 300 can completely cover the part of the lead screw 120 exposed outside the second mounting base 420 and the motor 110 when the two ends of the first protective cover 300 are fixedly connected to the first mounting base 410 and the second mounting base 420, respectively, thereby ensuring the protection effect of the first protective cover 300.

[0056] Specifically, a bearing is arranged between the lead screw 120 and the second mounting base 420.

[0057] Referring to Figure 1 , Figure 2 and Figure 3 , according to some embodiments of the present application, the driving mechanism further comprises a slide rail 510 and a slide base 520, the slide rail 510 extends along a first direction, the slide rail 510 is in sliding cooperation with the slide base 520, and the connecting base 200 is arranged on the slide base 520.

[0058] It can be understood that when the connecting seat 200 moves in the first direction relative to the lead screw 120, the sliding seat 520 can be driven to slide along the sliding rail 510, and the sliding cooperation between the sliding seat 520 and the sliding rail 510 can further improve the movement stability of the connecting seat 200.

[0059] With reference to Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, the driving mechanism further comprises a second protective cover 600, the second protective cover 600 is fixedly arranged, and the second protective cover 600 is located on one side of the sliding rail 510.

[0060] It can be understood that the second protective cover 600 is located on one side of the sliding rail 510 to protect the sliding rail 510, reduce the risk of debris and cutting fluid splashing to the sliding rail 510, and ensure the cleanliness of the sliding rail 510 to ensure the cooperation stability between the sliding rail 510 and the sliding seat 520.

[0061] With reference to Figure 3 According to some embodiments of the present application, the connecting seat 200 is provided with a second through hole 230, the second through hole 230 extends along the first direction and penetrates through the connecting seat 200, the second protective cover 600 passes through the second through hole 230, and the second protective cover 600 is located above the sliding rail 510.

[0062] It can be understood that the second through hole 230 is arranged on the connecting seat 200, the second through hole 230 extends along the first direction and penetrates through the connecting seat 200, so that the second protective cover 600 extending along the first direction can pass through the second through hole 230 and be arranged above the sliding rail 510, thereby protecting the sliding rail 510, reducing the risk of debris and cutting fluid splashing to the sliding rail 510, and ensuring the cleanliness of the sliding rail 510. Moreover, the second protective cover 600 is fixedly arranged, and the second protective cover 600 passes through the second through hole 230, so that the second protective cover 600 does not interfere with the movement of the connecting seat 200 when the connecting seat 200 moves in the first direction.

[0063] With reference to Figure 2 According to some embodiments of the present application, the projection of the sliding rail 510 on the horizontal plane falls within the projection of the second protective cover 600 on the horizontal plane.

[0064] It can be understood that the second protective cover 600 can completely shield above the sliding rail 510 to protect the entire sliding rail 510.

[0065] Specifically, the length and width dimensions of the sliding rail 510 are less than the length and width dimensions of the second protective cover 600, respectively.

[0066] With reference to Figure 5According to the second aspect of the embodiments of the present application, the machine tool comprises the driving mechanism of the first aspect of the embodiments.

[0067] According to the second aspect of the embodiments of the present application, the machine tool comprises the driving mechanism of the first aspect of the embodiments.

[0068] Referring to Figure 5 According to some embodiments of the present application, the machine tool further comprises a machine base 700, a moving base 800 and a spindle 900, the motor 110 is fixed to the machine base 700, the moving base 800 is slidably arranged on the connecting base 200 along a second direction, the second direction intersects the first direction, and the spindle 900 is arranged on the moving base 800 along a height direction.

[0069] It can be understood that the motor 110 drives the screw rod 120 to rotate, the nut 130 drives the connecting base 200 to move along the first direction, so as to drive the moving base 800 and the spindle 900 to move along the first direction, the moving base 800 can move along the second direction on the connecting base 200, so as to drive the spindle 900 to move along the second direction, and the spindle 900 can move along the height direction on the moving base 800.

[0070] Specifically, the second protective cover 600 is fixed to the machine base 700.

[0071] Specifically, the first direction and the second direction are perpendicular.

[0072] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. Drive mechanism, characterized in that The utility model relates to a driving mechanism, including: A motor; A screw rod, the screw rod extends along a first direction, the motor drives the screw rod to be connected; A nut, the nut is connected with the screw rod in a threaded mode; A connecting seat, the connecting seat is connected with the nut, the connecting seat is provided with a first through hole, the first through hole extends along a first direction and penetrates the connecting seat; A first protective cover, the first protective cover is fixedly arranged, the first protective cover extends along a first direction and is arranged through the first through hole, and the first protective cover is located above the screw rod.

2. The drive mechanism of claim 1, wherein, The cross section of the first protective cover is circular arc.

3. The drive mechanism of claim 2, wherein, The connecting seat is provided with a mounting hole, the nut is arranged in the mounting hole, and the first through hole partially surrounds the mounting hole.

4. The drive mechanism of claim 1, wherein, Further including a first mounting seat and a second mounting seat, the motor is fixed to the first mounting seat, and the end of the screw rod away from the motor is rotationally connected with the second mounting seat.

5. The drive mechanism of claim 1, wherein, Further including a slide rail and a slide base, the slide rail extends along a first direction, the slide rail is slidably connected with the slide base, and the connecting seat is arranged on the slide base.

6. The drive mechanism of claim 5, wherein, Further including a second protective cover, the second protective cover is fixedly arranged, and the second protective cover is located on one side of the slide rail.

7. The drive mechanism of claim 6, wherein, The connecting seat is provided with a second through hole, the second through hole extends along a first direction and penetrates the connecting seat, the second protective cover is arranged through the second through hole, and the second protective cover is located above the slide rail.

8. The drive mechanism of claim 7, wherein, The projection of the slide rail on a horizontal plane falls into the projection of the second protective cover on the horizontal plane.

9. Machine tool, characterized in that The utility model relates to a driving mechanism, including:

10. Machine tool according to claim 9, characterized in that Further including: A machine base, a moving base and a main shaft, the motor is fixed to the machine base, the moving base is slidably arranged on the connecting seat along a second direction, the second direction intersects the first direction, and the main shaft is arranged on the moving base along a height direction.

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