Workpiece clamping device for numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a workpiece clamping device for a numerical control machine tool, which comprises a supporting seat, a telescopic plate and a connecting plate, the telescopic plate is arranged on the side surface of the supporting seat, the connecting plate is arranged on the side surface of the telescopic plate, and a clamping structure is arranged on the side surface of the connecting plate; a workpiece is placed on the surface of a placing plate, the workpiece is clamped and fixed through a clamping block, then when the workpiece needs to be rotated, a supporting hydraulic rod is opened at the moment to stretch out upwards, a pushing plate is pushed to drive a telescopic plate to stretch out upwards, and then a driving motor is started to drive a connecting plate to rotate; the connecting plate on the other side drives the connecting plate on the other side to rotate through the supporting plate, so that a workpiece is driven to rotate, the workpiece is rotated while being clamped and fixed, the workpiece does not need to be disassembled again and then clamped, the workpiece is rotated reversely, the workpiece is fully machined, and the machining efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, and particularly relates to a workpiece clamping device for a numerical control machine tool. Background Art

[0002] A numerical control machine tool is short for a numerically controlled machine tool, which is an automated machine tool equipped with a program control system. This control system can logically process a program with control codes or other symbolic instructions to control the movement of the machine tool, so that the machine tool can process parts according to the shape and size required by the drawing. Therefore, a tool clamping device for a numerical control machine tool needs to be set up to clamp and fix the workpiece. However, the existing devices still have certain defects in use. For example:

[0003] A workpiece clamping device for a numerical control machine tool disclosed in the patent number "CN202020966393.2". When this device is in use, the telescopic mechanism is controlled by electricity, and at the same time, the telescopic rod has a relatively long length, which can effectively clamp the device when placing the workpiece, and the clamping device has a relatively wide adaptation range and can adapt to workpieces of various sizes and types. Therefore, it is not necessary to replace the clamping body during production and processing. However, when the device is in use, the existing clamping device can only clamp and fix the workpiece and cannot rotate the workpiece when clamping the workpiece, resulting in incomplete processing of the workpiece, making the processing of the workpiece inconvenient and reducing the processing efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a workpiece clamping device for a numerical control machine tool to solve the above problems, improving the problem of low processing efficiency of the existing workpiece clamping device for a numerical control machine tool.

[0005] A workpiece clamping device for a numerical control machine tool includes a support base, a telescopic plate and a connecting plate: a telescopic plate is arranged on the side of the support base, a connecting plate is arranged on the side of the telescopic plate, and a clamping structure is arranged on the side of the connecting plate; the clamping structure includes a first motor, a lead screw, a movable plate and a clamping plate. A first motor is arranged at the upper end of the connecting plate, a lead screw is arranged at the top end of the first motor, a movable plate is arranged on the surface of the lead screw, and a clamping plate is arranged at the lower end of the movable plate; the movable plate is threadedly connected with the lead screw, the connecting plate is rotatably connected with the telescopic plate, a protective pad is arranged on the surface of the clamping plate, a support hydraulic rod is arranged on the side of the telescopic plate, and a pushing plate is arranged on the side of the telescopic plate; a driving motor is arranged on the side of the telescopic plate, the driving motor penetrates through the telescopic plate, and the top end of the driving motor is connected with the side of one connecting plate.

[0006] Preferably, a support plate is arranged on the side of the connecting plate, and the clamping plate is slidably connected with the support plate.

[0007] Preferably, a clamping hydraulic rod is provided on the side of the support plate. The clamping hydraulic rod penetrates the support plate, and a limiting plate is provided at the top end of the clamping hydraulic rod.

[0008] Preferably, a first hydraulic rod is provided at the lower end of the support base, and a mounting base is provided at the lower end of the first hydraulic rod.

[0009] Preferably, a second hydraulic rod is provided at the upper end of the mounting base, a placement plate is provided at the upper end of the second hydraulic rod, and the second hydraulic rod penetrates the support base.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the settings of the support hydraulic rod, the push plate, the telescopic plate, the drive motor, the connecting plate, and the support plate, when the device is in use, first place the workpiece on the surface of the placement plate, clamp and fix the workpiece through the clamping block. Subsequently, when the workpiece needs to be rotated, at this time, turn on the support hydraulic rod to extend upward, push the push plate to drive the telescopic plate to extend upward. Then turn on the drive motor, so that the drive motor drives the connecting plate to rotate, and the connecting plate drives the connecting plate on the other side to rotate through the support plate, thereby driving the workpiece to rotate. In this way, while clamping and fixing the workpiece, the workpiece is rotated, so that the workpiece does not need to be disassembled and clamped again to reverse the workpiece, and the workpiece is fully processed, improving the processing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall front view three-dimensional structure schematic diagram of the present utility model;

[0013] Figure 2 is the overall top view three-dimensional structure schematic diagram of the present utility model;

[0014] Figure 3 is the three-dimensional structure schematic diagram of the mounting base and the first hydraulic rod installation of the present utility model;

[0015] Figure 4 is the three-dimensional structure schematic diagram of the drive motor and the connecting plate installation of the present utility model;

[0016] Figure 5 is the three-dimensional structure schematic diagram of the push plate and the support hydraulic rod installation of the present utility model.

[0017] In the figure: 1, support base; 2, mounting base; 3, first hydraulic rod; 4, second hydraulic rod; 5, placement plate; 6, telescopic plate; 7, support hydraulic rod; 8, connecting plate; 9, drive motor; 10, support plate; 11, push plate; 12, first motor; 13, lead screw; 14, movable plate; 15, clamping plate; 16, clamping hydraulic rod; 17, limiting plate; 18, clamping structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] During specific implementation: As Figures 1-5 shown, a workpiece clamping device for a numerical control machine tool includes a support base 1, a telescopic plate 6, and a connecting plate 8: A telescopic plate 6 is arranged on the side of the support base 1, a connecting plate 8 is arranged on the side of the telescopic plate 6, and a clamping structure 18 is arranged on the side of the connecting plate 8;

[0020] The clamping structure 18 includes a first motor 12, a lead screw 13, a movable plate 14, and a clamping plate 15. The first motor 12 is arranged at the upper end of the connecting plate 8, the lead screw 13 is arranged at the top of the first motor 12, the movable plate 14 is arranged on the surface of the lead screw 13, and the clamping plate 15 is arranged at the lower end of the movable plate 14;

[0021] When the device is in use and needs to clamp a workpiece, first place the workpiece on the surface of the placement plate 5, and then turn on the first motor 12 to drive the lead screw 13 to rotate. Since the threads on both sides of the lead screw 13 are opposite, the movable plate 14 moves inward simultaneously, driving the clamping plate 15 to move inward simultaneously, so that the clamping plate 15 clamps and fixes the workpiece, thereby achieving the purpose of clamping the workpiece.

[0022] The movable plate 14 is threadedly connected to the lead screw 13, the connecting plate 8 is rotatably connected to the telescopic plate 6, a protective pad is arranged on the surface of the clamping plate 15, a support hydraulic rod 7 is arranged on the side of the telescopic plate 6, and a push plate 11 is arranged on the side of the telescopic plate 6;

[0023] When the device is in use, the protective pad on the surface of the clamping plate 15 is used to prevent the problem that the surface of the workpiece is damaged due to excessive clamping force. When rotation is required, at this time, turn on the support hydraulic rod 7 to make the support hydraulic rod 7 extend upward, pushing the push plate 11 to drive the telescopic plate 6 to extend upward, leaving space for rotation and facilitating the rotation of the workpiece.

[0024] A support plate 10 is arranged on the side of the connecting plate 8, and the clamping plate 15 is slidably connected to the support plate 10;

[0025] A driving motor 9 is arranged on the side of the telescopic plate 6, the driving motor 9 penetrates the telescopic plate 6, and the top of the driving motor 9 is connected to the side of one connecting plate 8;

[0026] When the device is in use and the workpiece needs to be rotated, the driving motor 9 is turned on at this time. The driving motor 9 drives the connecting plate 8 to rotate, and drives the support plate 10 to rotate through the connecting plate 8, so that the workpiece can also be rotated when being clamped, without the need to remove and flip the workpiece and then clamp it again, improving the processing efficiency. When the driving motor 9 rotates clockwise half a turn and then rotates counterclockwise back to the original position, this is to prevent the wires from being pulled and broken due to 360° rotation.

[0027] A clamping hydraulic rod 16 is arranged on the side surface of the support plate 10. The clamping hydraulic rod 16 penetrates through the support plate 10, and a limiting plate 17 is arranged at the top end of the clamping hydraulic rod 16;

[0028] When the device is in use, first clamp the workpiece through the clamping structure 18, and then turn on the clamping hydraulic rod 16 to make the clamping hydraulic rod 16 extend, and push the limiting plate 17 to fit with the workpiece to perform secondary clamping and fixing of the workpiece to prevent the workpiece from falling off.

[0029] A first hydraulic rod 3 is arranged at the lower end of the support base 1, and a mounting base 2 is arranged at the lower end of the first hydraulic rod 3;

[0030] A second hydraulic rod 4 is arranged at the upper end of the mounting base 2, and a placing plate 5 is arranged at the upper end of the second hydraulic rod 4. The second hydraulic rod 4 penetrates through the support base 1;

[0031] When the device is in use, first fix and install the device on the surface of the machine tool through the mounting base 2, and then turn on the first hydraulic rod 3 to make the first hydraulic rod 3 extend upward to push the support plate 10 for height adjustment, so as to adjust the height of the device to enable the device to adapt to machine tools of different heights and facilitate the staff to use the device. When the workpiece needs to be rotated, turn on the second hydraulic rod 4 at this time to make the second hydraulic rod 4 contract downward and make the placing plate 5 contract downward to prevent blocking the rotation position of the workpiece. After the workpiece rotates, the second hydraulic rod 4 extends to push the placing plate 5 to fit with the workpiece again to support the workpiece.

[0032] When the utility model is in use, first, the device is installed on the surface of the machine tool through the mounting base 2. Then, the first hydraulic rod 3 is opened to adjust the height of the device to adapt to the height of the machine tool. Subsequently, the workpiece is placed on the surface of the placement plate 5. Then, the first motor 12 is turned on, and the first motor 12 drives the lead screw 13 to rotate, causing the movable plate 14 to move inward on the surface of the lead screw 13, driving the clamping plate 15 to move inward to clamp and fix the workpiece. Then, the clamping hydraulic rod 16 is opened, and the clamping hydraulic rod 16 extends to push the limiting plate 17 to clamp the workpiece, so as to clamp and fix the workpiece to make the workpiece more stable. Subsequently, the workpiece is processed. When the workpiece needs to be rotated, at this time, the support hydraulic rod 7 and the second hydraulic rod 4 are opened, so that the support hydraulic rod 7 pushes the telescopic plate 6 upward, and the second hydraulic rod 4 contracts the placement plate 5 downward to leave space for rotation. Then, the drive motor 9 is turned on, and the drive motor 9 drives the connecting plate 8 to rotate and drives the support plate 10 to rotate, so as to drive the workpiece to rotate. When the rotation is completed, then the support hydraulic rod 7 contracts and the second hydraulic rod 4 extends to make the placement plate 5 fit with the workpiece again and make the telescopic plate 6 return to its original position, so as to achieve the purpose of rotating the workpiece. Moreover, the motors of this device all have a self-locking function and are externally powered to supply power to the device.

[0033] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A workpiece clamping device for a numerically controlled machine tool, characterized in that, It includes a support base (1), a telescopic plate (6) and a connecting plate (8): a telescopic plate (6) is arranged on the side of the support base (1), a connecting plate (8) is arranged on the side of the telescopic plate (6), and a clamping structure (18) is arranged on the side of the connecting plate (8); The clamping structure (18) includes a first motor (12), a lead screw (13), a movable plate (14) and a clamping plate (15). The first motor (12) is arranged at the upper end of the connecting plate (8), the lead screw (13) is arranged at the top of the first motor (12), the movable plate (14) is arranged on the surface of the lead screw (13), and the clamping plate (15) is arranged at the lower end of the movable plate (14); The movable plate (14) is threadedly connected with the lead screw (13), the connecting plate (8) is rotatably connected with the telescopic plate (6), a protective pad is arranged on the surface of the clamping plate (15), a support hydraulic rod (7) is arranged on the side of the telescopic plate (6), and a push plate (11) is arranged on the side of the telescopic plate (6); A drive motor (9) is arranged on the side of the telescopic plate (6), the drive motor (9) penetrates the telescopic plate (6), and the top of the drive motor (9) is connected with the side of one connecting plate (8).

2. The workpiece clamping device for a numerically controlled machine tool according to claim 1, characterized in that: A support plate (10) is arranged on the side of the connecting plate (8), and the clamping plate (15) is slidably connected with the support plate (10).

3. The workpiece clamping device for a numerical control machine tool according to claim 2, characterized in that: A clamping hydraulic rod (16) is arranged on the side of the support plate (10), the clamping hydraulic rod (16) penetrates the support plate (10), and a limiting plate (17) is arranged at the top of the clamping hydraulic rod (16).

4. A workpiece clamping device for a numerical control machine tool according to claim 3, characterized in that: A first hydraulic rod (3) is arranged at the lower end of the support base (1), and a mounting base (2) is arranged at the lower end of the first hydraulic rod (3).

5. The workpiece clamping device for a numerically controlled machine tool according to claim 4, characterized in that: A second hydraulic rod (4) is arranged at the upper end of the mounting base (2), a placement plate (5) is arranged at the upper end of the second hydraulic rod (4), and the second hydraulic rod (4) penetrates the support base (1).

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