Clamping device of numerical control milling machine

Abstract

The utility model relates to the technical field of clamping equipment of numerical control milling machines, in particular to a clamping device of a numerical control milling machine, which comprises a fixed seat, a plurality of supports I are arranged on the front side of the fixed seat in an annular array sliding manner, nuts are fixedly embedded in the supports I, adjusting screw rods I are rotationally arranged in the nuts in a threaded manner, and the adjusting screw rods I are connected with the fixed seat. One end of each first adjusting lead screw is rotationally connected with a second support, a supporting plate is fixedly arranged on the side, away from the first support, of each second support, a clamping block is hinged to the other end of each supporting plate, and a connecting plate is slidably hinged to the side, away from the first support, of each second support. The other ends of the connecting plates are hinged to the adjacent sides of the clamping blocks, a plurality of first sliding grooves are formed in the front side of the fixing base in an annular array mode, and screw rods are rotationally arranged in the first sliding grooves. The device can be conveniently adjusted according to the shape of a workpiece, and therefore the applicability of the device can be effectively improved; and driving elements of the device are reduced.

Description

Technical Field

[0001] The utility model relates to a clamping device for a numerically controlled milling machine, belonging to the technical field of clamping equipment for numerically controlled milling machines. Background Art

[0002] CNC milling machine is an automatic processing equipment developed on the basis of general milling machine. The processing technology of the two is basically the same, and the structure is somewhat similar. CNC milling machine is divided into two categories: without tool magazine and with tool magazine. Among them, CNC milling machine with tool magazine is also called machining center. When CNC milling machine processes workpiece, it needs to use clamping device to clamp and fix the workpiece.

[0003] According to the announcement number CN207205931U, a workpiece clamping device for a CNC milling machine is disclosed, comprising a fixed disk, the fixed disk is fixedly installed on the CNC milling machine, one side of the fixed disk is provided with three groups of sliding grooves at equal distances along its radial direction, a sliding block is movably installed in the sliding groove, and the sliding block is fixedly connected with a first clamping plate, the first clamping plate is arranged close to the surface of the fixed disk, and the fixed disk on one side of the sliding groove is fixedly installed with a first clamping cylinder along the length direction of the sliding groove, and the piston rod of the first clamping cylinder is arranged toward the center of the fixed disk. The utility model is provided with three groups of clamping mechanisms on the fixed disk, and the clamping mechanisms can be moved and adjusted in the sliding groove, the clamping support forces in three directions can stably clamp the workpiece, and the workpiece will not shake even during the processing process, and the three groups of clamping mechanisms can be adjusted in position, which can meet the clamping of irregular workpieces, and improve the scope of application of the device. When the above device is used, the angle of the clamping block cannot be adjusted according to the irregular shape of the workpiece, and multiple driving elements need to be arranged, so that the applicability of the device is low and the production cost is high. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for a CNC milling machine. The utility model can conveniently adjust the device according to the shape of the workpiece, thereby effectively improving the applicability of the device and reducing the driving elements of the device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A clamping device for a CNC milling machine comprises a fixed seat, a plurality of supports 1 are slidably provided in a circular array on the front side of the fixed seat, a nut is fixedly embedded in each of the supports 1, an adjusting screw 1 is threadedly rotatably provided in each of the nuts, one end of the adjusting screw 1 is rotatably connected to a support 2, a support plate is fixedly provided on a side of the support 2 away from the support 1, a clamping block is hinged on the other end of the support plate, a connecting plate is slidably hinged on a side of the support 2 away from the support 1, and the other end of the connecting plate is hinged to a side adjacent to the clamping block.

[0007] Furthermore, a plurality of slide grooves are provided in a circular array on the front side of the fixing seat, a screw is rotatably provided in each of the slide grooves, a slider is threadedly sleeved on each of the screws, the front side of each of the sliders is fixedly connected to the rear side of the adjacent support, and a threaded seat matching the screw is fixedly embedded through each of the sliders.

[0008] Furthermore, a cavity is opened in the fixed seat, and a motor is fixedly provided on the rear inner wall of the cavity. The output end of the motor is fixedly connected to bevel gear 1, and one end of the screw extends into the cavity and is fixedly connected to bevel gear 2, and bevel gear 2 is meshed with bevel gear 1.

[0009] Furthermore, a sliding rod is fixedly provided on one side of the support two close to the support one, and the other end of the sliding rod passes through the support one and extends to the other side of the support one.

[0010] Furthermore, the slide bars are all provided with scale lines.

[0011] Furthermore, a slide groove 2 is provided on one side of the support 2 away from the support 1, an adjusting screw rod 2 is rotatably embedded on one side of the support 2, one end of the adjusting screw rod 2 extends into the adjacent slide groove 2, a slider 2 is threadedly sleeved on the adjusting screw rod 2, the slider 2 is hinged to a side adjacent to the connecting plate, and a threaded seat matching the adjusting screw rod 2 is fixedly embedded on the slider 2.

[0012] Furthermore, an anti-slip pad is fixedly provided on one side of the clamping block away from the second support.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a connecting plate, a support two, a bevel gear one and a bevel gear two. When in use, the device is adjusted according to the specifications of the workpiece. At this time, the adjusting screw rod one is rotated so that the adjusting screw rod one pushes the support two to move through the nut, so that the support two can be adjusted to move to a suitable position, and then the adjusting screw rod two is rotated so that the adjusting screw rod two drives the slider two to move in the slide groove two. At this time, the slider two will push one side of the clamping block to rotate on the support plate through the connecting plate, so that the clamping block can be adjusted to a suitable angle, and then the bevel gear one is driven to rotate by the motor. At this time, the bevel gear one will drive the bevel gear two to rotate, so that the bevel gear two drives the screw rod to rotate, and the screw rod can drive the slider one to move in the slide groove one, and the slider one can drive the support one to move toward each other, so that the support one drives the support two and the clamping block to move toward each other through the adjusting screw rod one, and then the workpiece can be clamped and fixed by the clamping block. The utility model can conveniently adjust the device according to the shape of the workpiece, so as to effectively improve the applicability of the device and reduce the driving elements of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a clamping device for a CNC milling machine of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a fixing seat of a clamping device of a CNC milling machine of the utility model;

[0018] Figure 3 It is a side view of a clamping device of a CNC milling machine of the utility model;

[0019] Figure 4 It is a schematic diagram of the overall structure of a clamping device of a CNC milling machine of the utility model;

[0020] Numbers in the figure: 1. Fixed seat; 2. Support 1; 3. Nut; 4. Adjusting screw 1; 5. Support 2; 6. Support plate; 7. Clamp; 8. Connecting plate; 9. Slide 1; 10. Screw; 11. Slider 1; 12. Cavity; 13. Motor; 14. Bevel gear 1; 15. Bevel gear 2; 16. Slider; 17. Slide 2; 18. Adjusting screw 2; 19. Slider 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A clamping device for a CNC milling machine comprises a fixed seat 1, a plurality of supports 2 are slidably provided in a circular array on the front side of the fixed seat 1, a nut 3 is fixedly embedded in each of the supports 2, an adjusting screw 4 is threadedly rotatably provided in each of the nuts 3, one end of the adjusting screw 4 is rotatably connected to a support 5, a support plate 6 is fixedly provided on the side of the support 5 away from the support 2, a clamping block 7 is hinged on the other end of the support plate 6, a connecting plate 8 is slidably hinged on the side of the support 5 away from the support 2, and the other end of the connecting plate 8 is hinged to the side adjacent to the clamping block 7.

[0024] Specifically, Figure 1-Figure 4 As shown, a plurality of slide grooves 9 are provided in a circular array on the front side of the fixing seat 1, and screws 10 are rotatably provided in the slide grooves 9, and sliders 11 are threadedly sleeved on the screws 10, and the front sides of the sliders 11 are fixedly connected to the rear sides of the adjacent supporting seats 2, and threaded seats matching the screws 10 are fixedly embedded through the sliders 11, and a cavity 12 is provided in the fixing seat 1, and a motor 13 is fixedly provided on the inner wall of the rear side of the cavity 12, and the output end of the motor 13 is fixedly connected to Bevel gear 14, one end of the screw 10 extends into the cavity 12 and is fixedly connected with bevel gear 2 15, the bevel gear 2 15 is meshed with the bevel gear 14, and the motor 13 drives the bevel gear 14 to rotate. At this time, the bevel gear 14 will drive the bevel gear 2 15 to rotate, so that the bevel gear 2 15 drives the screw 10 to rotate, and the screw 10 can drive the slider 11 to move in the slide groove 9, and the slider 11 can drive the support 2 to move toward each other.

[0025] Specifically, Figure 1-Figure 4 As shown, a sliding rod 16 is fixedly provided on one side of the support 2 5 close to the support 1 2 , and the other end of the sliding rod 16 passes through the support 1 2 and extends to the other side of the support 1 2 . When the support 2 5 is pushed to move by adjusting the screw rod 1 4 , the sliding rod 16 can support the support 2 5 .

[0026] Specifically, Figure 1-Figure 4 As shown, a slide groove 2 17 is provided on one side of the support 2 5 away from the support 1 2, and an adjusting screw rod 2 18 is rotatably embedded on one side of the support 2 5, one end of the adjusting screw rod 2 18 extends into the adjacent slide groove 2 17, and a slider 2 19 is threadedly sleeved on the adjusting screw rod 2 18, and the slider 2 19 is hinged to the side adjacent to the connecting plate 8, and a threaded seat matching the adjusting screw rod 2 18 is fixedly embedded on the slider 2 19, and an anti-slip pad is fixedly provided on the side of the clamping block 7 away from the support 2 5, and the adjusting screw rod 2 18 is rotated so that the adjusting screw rod 2 18 drives the slider 2 19 to move in the slide groove 2 17, and at this time, the slider 2 19 will push one side of the clamping block 7 to rotate on the support plate 6 through the connecting plate 8, so that the clamping block 7 can be adjusted to a suitable angle.

[0027] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and the first embodiment is that the slide bar 16 is provided with scale lines, and by providing the scale lines, it is easy to understand the moving distance of the support 2 5 and the clamping block 7.

[0028] Working principle of the utility model: when in use, the device is adjusted according to the specifications of the workpiece. At this time, by rotating the adjusting screw rod 14, the adjusting screw rod 14 pushes the support 2 5 to move through the nut 3, so that the support 2 5 can be adjusted to move to a suitable position. When the support 2 5 is pushed to move by the adjusting screw rod 14, the slide bar 16 can support the support 2 5. By setting the scale line, it is easy to understand the moving distance of the support 2 5 and the clamping block 7. Then, by rotating the adjusting screw rod 18, the adjusting screw rod 18 drives the slider 2 19 to move in the slide groove 2 17. At this time, the slider The second 19 will push one side of the clamping block 7 to rotate on the support plate 6 through the connecting plate 8, so that the clamping block 7 can be adjusted to a suitable angle, and then the bevel gear 14 will be driven to rotate by the motor 13. At this time, the bevel gear 14 will drive the bevel gear 2 15 to rotate, so that the bevel gear 2 15 drives the screw 10 to rotate, and the slider 11 can be driven by the screw 10 to move in the slide groove 9, and the support 2 can be driven by the slider 11 to move toward each other, so that the support 2 drives the support 2 5 and the clamping block 7 to move toward each other through the adjusting screw rod 4, and then the workpiece can be clamped and fixed by the clamping block 7.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a CNC milling machine, comprising a fixing seat (1), characterized in that: A plurality of supports (2) are slidably arranged in an annular array on the front side of the fixed seat (1), a nut (3) is fixedly embedded in each support (2), an adjusting screw rod (4) is threadedly rotatably arranged in each nut (3), one end of each adjusting screw rod (4) is rotatably connected to a support (5), a support plate (6) is fixedly arranged on the side of each support (5) away from the support (2), a clamping block (7) is hingedly connected to the other end of each support plate (6), a connecting plate (8) is slidably hingedly connected to the side of each support (5) away from the support (2), and the other end of each connecting plate (8) is hingedly connected to the side adjacent to the clamping block (7).

2. The clamping device for a CNC milling machine according to claim 1, characterized in that: The front side annular array of the fixed seat (1) is provided with a plurality of slide grooves (9), each of which is rotatably provided with a screw rod (10), each of which is threadedly sleeved with a slider (11), the front side of each of which is fixedly connected to the rear side of the adjacent support seat (2), and each of which is penetrated and fixedly embedded with a threaded seat matching the screw rod (10).

3. The clamping device for a CNC milling machine according to claim 2, characterized in that: A cavity (12) is provided in the fixing seat (1), a motor (13) is fixedly provided on the rear inner wall of the cavity (12), an output end of the motor (13) is fixedly connected to a bevel gear 1 (14), one end of each screw rod (10) extends into the cavity (12) and is fixedly connected to a bevel gear 2 (15), and each bevel gear 2 (15) is gear-engaged with the bevel gear 1 (14).

4. The clamping device for a CNC milling machine according to claim 1, characterized in that: A sliding rod (16) is fixedly provided on one side of the support 2 (5) close to the support 1 (2), and the other end of the sliding rod (16) passes through the support 1 (2) and extends to the other side of the support 1 (2).

5. The clamping device for a CNC milling machine according to claim 4, characterized in that: The slide bars (16) are all provided with scale lines.

6. The clamping device for a CNC milling machine according to claim 1, characterized in that: The side of the support 2 (5) away from the support 1 (2) is provided with a slide groove 2 (17), and the side of the support 2 (5) is rotatably embedded with an adjusting screw rod 2 (18), one end of the adjusting screw rod 2 (18) extends into the adjacent slide groove 2 (17), and the adjusting screw rod 2 (18) is threadedly sleeved with a slider 2 (19), and the slider 2 (19) is hinged to the side adjacent to the connecting plate (8), and the slider 2 (19) is penetrated and fixedly embedded with a threaded seat matching the adjusting screw rod 2 (18).

7. The clamping device for a CNC milling machine according to claim 1, characterized in that: An anti-slip pad is fixedly provided on one side of the clamping block (7) away from the second support (5).

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