Workpiece positioning and clamping device of numerical control machine tool

Abstract

The utility model discloses a numerically-controlled machine tool workpiece positioning and clamping device, and relates to the field of numerically-controlled machine tool workpiece positioning. The numerically-controlled machine tool workpiece positioning and clamping device comprises a supporting base and supporting tables, the top of the supporting base is provided with two sets of supporting tables, and supporting frames are fixed to the ends, close to the top of the vertical central axis of the supporting base, of the two sets of supporting tables; a rotating table is rotationally arranged in the supporting frame, four sets of first adjusting rods are arranged in the rotating table in a circumferential array mode, adjusting knobs are fixed to the ends, away from the center point of the rotating table, of one set of first adjusting rods on the upper side in the rotating table, and connecting discs are fixed to the ends, close to the center point of the rotating table, of the four sets of first adjusting rods; the four sets of connecting discs are arranged in an adjacent meshing mode, and the outer sides of the four sets of first adjusting rods are in threaded connection with clamping plates. According to the multi-degree-of-freedom turning clamp, a stable clamping function can be provided for workpieces with different circular sizes and lengths, and meanwhile a convenient 360-degree turning function can be achieved in the machining process of the workpieces.

Description

Technical Field

[0001] The utility model relates to the field of workpiece positioning of numerically controlled machine tools, in particular to a workpiece positioning and clamping device for numerically controlled machine tools. Background Art

[0002] CNC machine tool workpieces refer to objects processed on CNC machine tools. Through the precise control of CNC machine tools, the workpieces are cut, arranged, extruded, and other operations are performed to finally obtain finished products that meet the requirements. With the progress and development of the times, CNC machine tools have been widely used in many fields such as automobile manufacturing, aerospace, mold manufacturing, machinery manufacturing, electronics manufacturing, and medical device manufacturing.

[0003] In the process of traditional CNC machine tools processing workpieces, it is necessary to process different surfaces of workpieces of different lengths and diameters, which makes the processing process more cumbersome and requires replacement, disassembly and rotation for different lengths, diameters and different surfaces, thereby wasting manpower and material resources and reducing work efficiency. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a CNC machine tool workpiece positioning and clamping device, which can provide a relatively stable clamping function for workpieces of different circular sizes and lengths, and at the same time can perform a convenient 360-degree turning function on the workpiece during the processing process.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a workpiece positioning and clamping device for a CNC machine tool, comprising a support base and a support table;

[0006] Two groups of support platforms are provided on the top of the support base, and a support frame is fixed to one end of the top of the two groups of support platforms close to the vertical central axis of the support base, a rotating platform is provided for rotation inside the support frame, and two groups of limit plates are provided on the outside of the rotating platform, four groups of first adjusting rods are arranged in a circular array inside the rotating platform, and an adjusting knob is fixed on the end of a group of first adjusting rods on the upper side of the rotating platform away from the center point of the rotating platform, a connecting disk is fixed on the end of the four groups of first adjusting rods close to the center point of the rotating platform, and the four groups of connecting disks are arranged in adjacent meshing manner, and the outer sides of the four groups of first adjusting rods are threadedly connected to clamping plates.

[0007] Furthermore, an adjustment plate is fixed to the bottom of the two groups of support platforms, and a first slider is fixed on both sides of the two groups of support platforms. The upper surface of the support base is provided with a sliding groove adapted to the first slider, and the sliding groove slides with the first slider.

[0008] Furthermore, a groove-shaped limiting groove for the adjustment knob to rotate is provided inside the support frame, and the support frame provides complementary limiting for the rotating platform through the limiting piece.

[0009] Furthermore, a cross-shaped groove structure is provided on the top of the adjusting knob for plugging into a cross-shaped rotating rod adapted to the outside world.

[0010] Furthermore, a clamping block is fixed to one end of the four groups of clamping plates close to the vertical central axis of the support base, and a protective pad is attached to the inner side of the clamping block. A second slider is fixed to one end of the four groups of clamping plates away from the vertical central axis of the support base, and the four groups of second sliders are slidably connected to the rotating table.

[0011] Furthermore, a group of the support platforms are fixed with a fixed seat at one end of the top away from the vertical central axis of the support base, and a first drive motor is installed on one end face of the fixed seat away from the support frame. A connecting rod is provided at the output end of the first drive motor, and the connecting rod is fixedly connected to the rotating platform.

[0012] Furthermore, a second adjustment rod is provided inside the support base, and one end of the second adjustment rod is connected to the output end of the second drive motor located on one end surface of the support base, and the second adjustment rod is threadedly connected to the two sets of adjustment plates.

[0013] Furthermore, two groups of threaded groups arranged in opposite directions are provided on the outer side of the second adjusting rod, and a touch screen control panel is provided at one end of the support base close to the second drive motor, and the touch screen control panel is electrically connected to the control center, and the control center is electrically connected to the first drive motor and the second drive motor.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the user rotates the adjustment knob to drive a group of first adjustment rods connected thereto to rotate. The first adjustment rod drives the other three groups of first adjustment rods to rotate through the connecting plate, thereby allowing the four groups of first adjustment rods to be threadedly connected to the four groups of clamping plates to drive the four groups of clamping plates to move, thereby achieving a tight clamping of the workpiece;

[0016] 2. In the present invention, the rotating table has a complementary limiting function when rotating inside the support frame through the limiting plate. At the same time, one group of rotating tables is fixedly connected to the connecting rod, thereby having a rotation function, and the rotating table inside the other group of support frames is assisted in rotation by the transmission of the clamped workpiece.

[0017] 3. In the present invention, the two groups of support platforms are threadedly connected to the second adjustment rod through the adjustment plate, so that they can move in relative directions inside the support base. The first slider provides a limiting function for the support platform by sliding inside the slide groove opened on the upper surface of the support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0020] Figure 3 This is a schematic diagram of the front cross-sectional structure of the connection between the adjustment plate and the second adjustment rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-sectional structure of the connection between the support frame and the rotating table of the utility model.

[0022] In the figure: 1. Support base; 2. Slide groove; 3. Support platform; 4. First slider; 5. Adjustment plate; 6. Support frame; 7. Limiting groove; 8. Turntable; 9. Limiting plate; 10. First adjusting rod; 11. Adjusting knob; 12. Connecting plate; 13. Clamping plate; 14. Clamping block; 15. Protective pad; 16. Second slider; 17. Fixed seat; 18. First drive motor; 19. Connecting rod; 20. Second adjusting rod; 21. Second drive motor; 22. Touch screen control panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The following describes an embodiment of the present invention based on its overall structure.

[0027] In this example, see Figure 1 and Figure 3 , a technical solution: it includes a support base 1 for providing support performance for the overall device and a support platform 3 for adjusting the length of the workpiece. Two groups of support platforms 3 are provided on the top of the support base 1, and the two groups of support platforms 3 can clamp the two ends of the workpiece. Adjustment plates 5 are fixed to the bottom of the two groups of support platforms 3, and the adjustment plates 5 are used to connect with the second adjustment rod 20 inside the support base 1. First sliders 4 are fixed on both sides of the two groups of support platforms 3. The first slider 4 is used to provide a limit stabilization function for both sides of the support platform 3. A slide groove 2 adapted to the first slider 4 is opened on the upper surface of the support base 1, and the slide groove 2 slides with the first slider 4. The slide groove 2 can make the first slider 4 slide smoothly inside it, so that the support platform 3 is more stable and smooth during the movement.

[0028] For further information, see Figure 1 、 Figure 2 and Figure 4 , the two groups of support platforms 3 are fixed with a support frame 6 at one end of the top near the vertical central axis of the support base 1. The support frame 6 is used to provide support for the workpiece to be processed. A groove-shaped limit groove 7 is provided inside the support frame 6 for the adjustment knob 11 to rotate. The limit groove 7 can enable the adjustment knob 11 to have a good rotation space when rotating with the rotating table 8 to prevent damage from colliding with the support frame 6. The internal rotation of the support frame 6 is provided with a rotating table 8, and two groups of limit plates 9 are provided on the outside of the rotating table 8. The rotating table 8 is used to provide installation space and rotation function for the components for supporting the workpiece. The rotating table 8 has a limiting function inside the support frame 6 through the limit plates 9.

[0029] For further information, see Figure 1 and Figure 4 There are four groups of first adjusting rods 10 in a circular array inside the rotating table 8, and an adjusting knob 11 is fixed to the end of a group of first adjusting rods 10 on the upper side of the rotating table 8 away from the center point of the rotating table 8. The surfaces of the four groups of first adjusting rods 10 are provided with a thread group, and the top of the adjusting knob 11 is provided with a cross-shaped groove structure for plugging with a cross-shaped rotating rod adapted to the outside world, so that the adjusting knob 11 drives a group of first adjusting rods 10 to rotate.

[0030] For further information, see Figure 4 A connecting disk 12 is fixed to one end of the four groups of first adjusting rods 10 close to the center point of the rotating table 8, and the four groups of connecting disks 12 are arranged in adjacent engagement. Therefore, when a group of first adjusting rods 10 is rotated by the adjusting knob 11, a group of first adjusting rods 10 will drive a group of connecting disks 12 to rotate, and then the four groups of connecting disks 12 are rotated synchronously through the adjacent engagement setting, so that the four groups of first adjusting rods 10 rotate synchronously.

[0031] For further information, see Figure 1 、 Figure 2 and Figure 4 The outer sides of the four groups of first adjusting rods 10 are all threadedly connected with clamping plates 13, so that when the first adjusting rod 10 is rotated, the clamping plates 13 will be driven to move. The four groups of clamping plates 13 are fixed with clamping blocks 14 at one end close to the vertical central axis of the support base 1. The clamping blocks 14 are used to provide clamping and fastening functions for the workpiece, and a protective pad 15 is affixed to the inner side of the clamping blocks 14. The protective pad 15 is used to provide protection for the workpiece to prevent damage to the workpiece. The four groups of clamping plates 13 are fixed with a second slider 16 at one end away from the vertical central axis of the support base 1, and the four groups of second sliders 16 are slidably connected to the rotating table 8. The second slider 16 is used to provide a limiting function for the clamping plate 13 when it moves, so that the clamping plate 13 is more stable and smooth during the movement.

[0032] For further information, see Figure 1 and Figure 3 A group of support platforms 3 are fixed with a fixed seat 17 at one end of the top away from the vertical central axis of the support base 1, and a first drive motor 18 is installed on the end surface of the fixed seat 17 away from the support frame 6. A connecting rod 19 is provided at the output end of the first drive motor 18, and the connecting rod 19 is fixedly connected to the rotating platform 8. The fixed seat 17 is used to provide installation space for the first drive motor 18 and the connecting rod 19. The first drive motor 18 is an existing drive motor, which is electrically connected to the control center. The connecting rod 19 is fixedly connected to the output end of the first drive motor 18 using an existing installation method, so that the control center can drive the connecting rod 19 to rotate through the first drive motor 18. The connecting rod 19 is fixedly connected to a group of rotating platforms 8, thereby driving a group of rotating platforms 8 to rotate.

[0033] For further information, see Figure 1 and Figure 3 A second adjusting rod 20 is provided inside the support base 1, and one end of the second adjusting rod 20 is connected to the output end of the second drive motor 21 located on one end surface of the support base 1. The second drive motor 21 is an existing drive motor and is connected to the support base 1 and the second adjusting rod 20 using an existing installation method. The control center drives the second adjusting rod 20 to rotate through the second drive motor 21. The second adjusting rod 20 is threadedly connected to the two sets of adjustment plates 5, thereby driving the adjustment plates 5 to move.

[0034] For further information, see Figure 1 and Figure 2Two sets of thread groups arranged in opposite directions are provided on the outer side of the second adjusting rod 20. The two sets of opposite threads can make the two sets of adjusting plates 5 move in relative directions. A touch screen control panel 22 is provided at one end of the support base 1 close to the second drive motor 21, and the touch screen control panel 22 is electrically connected to the control center. The control center is electrically connected to the first drive motor 18 and the second drive motor 21. The control center transmits instructions to the first drive motor 18 and the second drive motor 21 respectively through the touch screen control panel 22.

[0035] The implementation principle of this embodiment is: first, the support base 1 is stably placed in the specified position, and the first adjusting rod 10 is rotated by plugging the external cross-shaped rotating shaft with the adjusting knob 11, so that the clamping plate 13 is moved, so that the clamping block 14 on the inner side of a group of rotating tables 8 is used to tighten one end of the workpiece through the protective pad 15, and then the second drive motor 21 is rotated through the touch screen control panel 22, so that the second drive motor 21 adjusts the support table 3 to the appropriate position through the adjusting plate 5, so that the clamping block 14 on the inner side of the other group of rotating tables 8 can also clamp the other end of the workpiece, and finally, the first drive motor 18 is turned on through the touch screen control panel 22, so that the first drive motor 18 drives the rotating table 8 to rotate through the connecting rod 19, and drives the workpiece to rotate through one group of rotating tables 8, and the other group of rotating tables 8 is driven to rotate by the workpiece.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A workpiece positioning and clamping device for a CNC machine tool, characterized in that: It comprises a support base (1) and a support platform (3); Two groups of support platforms (3) are provided on the top of the support base (1), and a support frame (6) is fixed to one end of the top of the two groups of support platforms (3) close to the vertical central axis of the support base (1), a rotating table (8) is provided inside the support frame (6), and two groups of limit plates (9) are provided on the outside of the rotating table (8), four groups of first adjustment rods (10) are arranged in a circular array inside the rotating table (8), and an adjustment knob (11) is fixed to one end of the first adjustment rod (10) on the upper side of the rotating table (8) away from the center point of the rotating table (8), a connecting disk (12) is fixed to one end of the four groups of first adjustment rods (10) close to the center point of the rotating table (8), and the four groups of connecting disks (12) are arranged in adjacent meshing arrangement, and the outside of the four groups of first adjustment rods (10) are all threadedly connected to a clamping plate (13).

2. The CNC machine tool workpiece positioning and clamping device according to claim 1, characterized in that: Adjustment plates (5) are fixed to the bottoms of the two groups of support platforms (3), and first sliders (4) are fixed to both sides of the two groups of support platforms (3). A slide groove (2) adapted to the first slider (4) is provided on the upper surface of the support base (1), and the slide groove (2) slides with the first slider (4).

3. The workpiece positioning and clamping device for CNC machine tools according to claim 1, characterized in that: A groove-shaped limiting groove (7) for the adjustment knob (11) to rotate is provided inside the support frame (6), and the support frame (6) provides complementary limiting for the rotating platform (8) through the limiting piece (9).

4. The workpiece positioning and clamping device for CNC machine tools according to claim 1, characterized in that: The top of the adjusting knob (11) is provided with a cross-shaped groove structure for plugging into a cross-shaped rotating rod adapted to the outside world.

5. The workpiece positioning and clamping device for CNC machine tools according to claim 1, characterized in that: A clamping block (14) is fixed to one end of the four groups of clamping plates (13) close to the vertical central axis of the support base (1), and a protective pad (15) is attached to the inner side of the clamping block (14). A second slider (16) is fixed to one end of the four groups of clamping plates (13) away from the vertical central axis of the support base (1), and the four groups of second sliders (16) are slidably connected to the rotating table (8).

6. The workpiece positioning and clamping device for CNC machine tools according to claim 1, characterized in that: A fixing seat (17) is fixed to one end of the top of a group of support platforms (3) away from the vertical central axis of the support base (1), and a first driving motor (18) is installed on one end surface of the fixing seat (17) away from the support frame (6). A connecting rod (19) is provided at the output end of the first driving motor (18), and the connecting rod (19) is fixedly connected to the rotating platform (8).

7. The workpiece positioning and clamping device for CNC machine tools according to claim 1, characterized in that: A second adjustment rod (20) is provided inside the support base (1), and one end of the second adjustment rod (20) is connected to the output end of a second drive motor (21) located on one end surface of the support base (1), and the second adjustment rod (20) is threadedly connected to the two sets of adjustment plates (5).

8. The workpiece positioning and clamping device for a CNC machine tool according to claim 7, characterized in that: Two sets of threaded groups arranged in opposite directions are provided on the outer side of the second adjusting rod (20); a touch screen control panel (22) is provided at one end of the support base (1) close to the second drive motor (21); and the touch screen control panel (22) is electrically connected to a control center, and the control center is electrically connected to both the first drive motor (18) and the second drive motor (21).

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