High-speed rotating clamping and fastening mechanism of double-spindle machining center

Abstract

The utility model discloses a double-spindle machining center high-speed rotating clamping and fastening mechanism which comprises a machine table, a rotating disc is rotationally connected to the upper end of the machine table, a rectangular box is arranged at the upper end of the rotating disc, and the double-spindle machining center high-speed rotating clamping and fastening mechanism further comprises a clamping mechanism. The clamping mechanism comprises cross-shaped sliding grooves, cross-shaped sliding blocks, fixing blocks, a rotating column, a switching disc and a connecting rod, the cross-shaped sliding grooves which are evenly distributed are formed in the upper end of the rectangular box, the cross-shaped sliding blocks are slidably connected into the cross-shaped sliding grooves correspondingly, and the fixing blocks are fixedly connected to the upper ends of the inner side faces of the cross-shaped sliding blocks correspondingly; according to the high-speed rotating clamping and fastening mechanism for the double-spindle machining center, when a workpiece is clamped, under self-locking of a worm and a worm gear, the workpiece is clamped more firmly, the clamping effect is better, and the clamping effect is better. And the workpiece is not easy to fall off under high-speed rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-spindle machining centers, in particular to a high-speed rotating clamping and fastening mechanism for a dual-spindle machining center. Background Art

[0002] Dual-spindle machining centers demonstrate outstanding performance and broad application prospects in the field of modern mechanical processing. Dual-spindle design: Equipped with two independent spindle systems, two workpieces can be processed simultaneously, greatly improving processing efficiency. High-precision guide rails and lead screws: High-precision linear guide rails and ball screws are used to ensure accuracy and stability during processing. Powerful cutting capabilities: Equipped with high-performance spindle motors and tool systems, they are capable of high-speed and powerful cutting, adapting to the processing needs of various complex parts. Automated control system: Advanced CNC systems are used to achieve automated processing, improving production efficiency and processing accuracy.

[0003] Some existing dual-spindle machining centers have clamping and fastening mechanisms that clamp the workpiece by means of bolt tightening, cam locking, etc.

[0004] The clamping and fastening mechanisms of some existing dual-spindle machining centers have the following problems: when clamping the workpiece, the clamping effect of bolt tightening, cam locking and other methods is poor, the clamping is not firm, and the workpiece is prone to fall off under high-speed rotation. For this reason, we propose a high-speed rotating clamping and fastening mechanism for a dual-spindle machining center. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-speed rotating clamping and fastening mechanism for a dual-spindle machining center. When clamping the workpiece, the self-locking of the worm and the worm wheel can clamp the workpiece more firmly, and the workpiece is not likely to fall off under high-speed rotation, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-speed rotating clamping and fastening mechanism for a dual-spindle machining center, comprising a machine table, a turntable rotatably connected to the upper end of the machine table, a rectangular box provided at the upper end of the turntable, and a clamping mechanism;

[0007] The clamping mechanism comprises a cross sliding slot, a cross sliding block, a fixed block, a rotating column, a rotating disc and a connecting rod, the upper end of the rectangular box is provided with the uniformly distributed cross sliding slots, the inner sides of the cross sliding slots are respectively connected with the cross sliding blocks, the inner sides of the cross sliding blocks are respectively fixedly connected with the fixed blocks, the rotating column is rotationally connected between the upper and lower inner walls of the rectangular box, the rotating disc is fixedly sleeved on the outer side of the upper end of the rotating column, the lower ends of the cross sliding blocks are respectively rotationally connected with the connecting rods through pin shafts, and the inner side ends of the connecting rods are respectively rotationally connected with the lower end edges of the rotating disc through rotating shafts.

[0008] Further, the middle part of the left side of the machine table is provided with a control switch group, the input end of the control switch group is electrically connected with the output end of the external power supply, and each electric appliance is electrically connected.

[0009] Further, the clamping mechanism further comprises a worm wheel and a worm, the outer side of the lower side of the rotating column is fixedly sleeved with the worm wheel, the worm is rotationally connected between the left and right inner walls of the rectangular box, and the worm wheel is meshedly connected with the worm, so that self-locking is facilitated.

[0010] Further, the clamping mechanism further comprises a hexagonal bolt and a knob, the outer side of the rectangular box is provided with the knob, the left end of the worm is fixedly connected with the hexagonal bolt, and the hexagonal bolt is installed in cooperation with the knob, so that clamping is facilitated.

[0011] Further, the machine table further comprises a rotating mechanism, the rotating mechanism comprises a rotating shaft, a belt pulley one, a belt, a belt pulley two and a rotating column, the lower end center of the rotating disc is fixedly connected with the rotating column, the lower end of the rotating column is fixedly connected with the belt pulley two, the rear side of the top wall of the machine table is rotationally connected with the rotating shaft, the rotating shaft is fixedly sleeved with the belt pulley one in the middle part, the belt pulley one and the belt pulley two are drivingly connected through the belt, and rotation is realized.

[0012] Further, the rotating mechanism further comprises a motor, the rear wall of the machine table is fixedly connected with the motor through the fixed block, the upper end of the output shaft of the motor is fixedly connected with the lower end of the rotating shaft, the input end of the motor is electrically connected with the output end of the control switch group, and rotation driving is provided.

[0013] Further, the lower end of the machine table is respectively provided with a supporting leg at four corners, and support is provided.

[0014] Compared with the prior art, the double-spindle machining center high-speed rotating clamping and fastening mechanism has the following advantages:

[0015] The worm is driven to rotate by the knob and the hexagonal bolt. The worm will drive the adapter plate on the rotating column to rotate through the meshing worm wheel. The adapter plate will make the cross slide block move closer to the center inside the cross slide through the connecting rod, and then drive the fixed block to move closer to the center to clamp the workpiece. Then the knob is pulled out. When clamping the workpiece, the self-locking of the worm and the worm wheel makes the clamping of the workpiece more secure, and the workpiece is not likely to fall off under high-speed rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the left side cross-sectional structure of the utility model;

[0019] Figure 4 This is an enlarged structural diagram of point A of the present utility model.

[0020] In the figure: 1 machine platform, 2 support legs, 3 control switch group, 4 rotating mechanism, 41 motor, 42 rotating shaft, 43 pulley 1, 44 belt, 45 pulley 2, 46 rotating column, 5 turntable, 6 rectangular box, 7 clamping mechanism, 701 cross slide, 702 cross slider, 703 fixing block, 704 rotating column, 705 adapter plate, 706 connecting rod, 707 worm gear, 708 worm, 709 hexagonal bolt, 710 knob. DETAILED DESCRIPTION

[0021] 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. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4The embodiment provides a technical scheme: a high-speed rotating clamping and fastening mechanism of a double-spindle machining center, which comprises a machine table 1, the upper end of the machine table 1 is rotationally connected with a rotating disc 5, the upper end of the rotating disc 5 is provided with a rectangular box 6, further comprises a clamping mechanism 7, the left side surface of the machine table 1 is provided with a control switch group 3 in the middle, the input end of the control switch group 3 is electrically connected with the output end of an external power supply, further comprises a rotating mechanism 4, the rotating mechanism 4 comprises a rotating shaft 42, a belt pulley one 43, a belt 44, a belt pulley two 45 and a rotating column 46, the lower end of the rotating disc 5 is fixedly connected with the rotating column 46, the lower end of the rotating column 46 is fixedly connected with the belt pulley two 45, the top wall rear side of the machine table 1 is rotationally connected with the rotating shaft 42, the middle part of the rotating shaft 42 is fixedly sleeved with the belt pulley one 43, the belt pulley one 43 and the belt pulley two 45 are drivingly connected through the belt 44, the rotating mechanism 4 further comprises a motor 41, the rear wall of the machine table 1 is fixedly connected with the motor 41 through a fixed block, the upper end of the output shaft of the motor 41 is fixedly connected with the lower end of the rotating shaft 42, the input end of the motor 41 is electrically connected with the output end of the control switch group 3, the lower end of the machine table 1 is respectively provided with a supporting leg 2 at four corners, then the motor 41 operates by adjusting and controlling the control switch group 3, the output shaft of the motor 41 drives the rotating shaft 42 to rotate, the rotating shaft 42 rotates to drive the belt pulley one 43 to rotate, the belt pulley one 43 rotates to drive the belt pulley two 45 to rotate through the belt 44, the belt pulley two 45 rotates to drive the rotating column 46 to rotate, the rotating column 46 rotates to drive the rectangular box 6 at the upper end of the rotating disc 5 to rotate, and then the workpiece is rotated;

[0023] Clamping mechanism 7: It includes a cross slide 701, a cross slider 702, a fixed block 703, a rotating column 704, an adapter plate 705 and a connecting rod 706. The upper end of the rectangular box 6 is provided with a uniformly distributed cross slide 701. The interior of the cross slide 701 is slidably connected to the cross slider 702. The upper end of the inner side of the cross slider 702 is fixedly connected to the fixed block 703. The upper and lower inner walls of the rectangular box 6 are rotatably connected with the rotating column 704. The upper end of the rotating column 704 is connected to the upper inner wall of the rectangular box 6. The outer fixed sleeve at the end is provided with an adapter plate 705, and the lower end of the cross slider 702 is rotatably connected to the connecting rod 706 through a pin shaft. The inner end of the connecting rod 706 is rotatably connected to the lower end edge of the adapter plate 705 through a rotating shaft. The clamping mechanism 7 also includes a worm gear 707 and a worm 708. The outer fixed sleeve at the lower side of the rotating column 704 is provided with a worm gear 707. The worm 708 is rotatably connected between the left and right inner walls of the rectangular box 6. The worm gear 707 is meshed with the worm 708 to clamp The holding mechanism 7 also includes a hexagonal bolt 709 and a knob 710. The outside of the rectangular box 6 is provided with a knob 710. The left end of the worm 708 is fixedly connected with the hexagonal bolt 709. The hexagonal bolt 709 and the knob 710 are installed in conjunction with each other. When clamping the workpiece, first place the workpiece in the center of the rectangular box 6, then align the hexagonal bolt 709 with the knob 710, so that the hexagonal bolt 709 is engaged with the knob 710, and then rotate the knob 710. The knob 710 will pass through the hexagonal bolt 709 to clamp the workpiece. The angle bolt 709 drives the worm 708 to rotate. The rotation of the worm 708 will drive the meshing worm wheel 707 to rotate. The rotation of the worm wheel 707 will drive the rotating column 704 to rotate. The rotation of the rotating column 704 will drive the adapter plate 705 to rotate. The rotation of the adapter plate 705 will cause the cross slider 702 to move toward the center inside the adjacent cross slide groove 701 through the connecting rod 706, and then drive the fixed block 703 to move toward the center to clamp the workpiece, and then the knob 710 is pulled out.

[0024] The working principle of the high-speed rotating clamping and fastening mechanism of a dual-spindle machining center provided by the present invention is as follows: when clamping a workpiece, first place the workpiece in the center of the rectangular box 6, then align the knob 710 with the hexagonal bolt 709, so that the hexagonal bolt 709 is engaged with the knob 710, and then rotate the knob 710, which will drive the worm 708 to rotate through the hexagonal bolt 709, and the rotation of the worm 708 will drive the meshing worm gear 707 to rotate, and the rotation of the worm gear 707 will drive the rotating column 704 to rotate, and the rotation of the rotating column 704 will drive the adapter plate 705 to rotate, and the rotation of the adapter plate 705 will drive the connecting Rod 706 makes the cross slide block 702 move toward the center inside the adjacent cross slide groove 701, thereby driving the fixed block 703 to move toward the center to clamp the workpiece, and then the knob 710 is pulled out, and then the control switch group 3 is adjusted, the motor 41 is operated, and the output shaft of the motor 41 drives the rotating shaft 42 to rotate, the rotation of the rotating shaft 42 will drive the pulley 1 43 to rotate, the rotation of the pulley 1 43 will drive the pulley 2 45 to rotate through the belt 44, the rotation of the pulley 2 45 will drive the rotating column 46 to rotate, the rotation of the rotating column 46 will drive the rectangular box 6 at the upper end of the turntable 5 to rotate, and thereby drive the workpiece to rotate.

[0025] It is worth noting that the motor 41 disclosed in the above embodiment can be YEJ20.55KW-4P, and the control switch group 3 is provided with a switch button corresponding to the motor 41 for controlling its switching operation.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-speed rotating clamping and fastening mechanism for a dual-spindle machining center, comprising a machine platform (1), the upper end of which is rotatably connected to a turntable (5), the upper end of which is provided with a rectangular box (6), characterized in that: Also includes a clamping mechanism (7); The clamping mechanism (7) comprises a cross slide (701), a cross slider (702), a fixed block (703), a rotating column (704), an adapter plate (705) and a connecting rod (706). The upper end of the rectangular box (6) is provided with a cross slide (701) uniformly distributed. The interior of the cross slide (701) is respectively slidably connected with the cross slider (702). The upper ends of the inner side surfaces of the cross slider (702) are respectively fixedly connected with the fixed blocks (703). The rotating column (704) is rotatably connected between the upper and lower inner walls of the rectangular box (6). The upper end of the rotating column (704) is fixedly sleeved with an adapter plate (705). The lower ends of the cross sliders (702) are respectively rotatably connected with the connecting rods (706) through pins. The inner ends of the connecting rods (706) are respectively rotatably connected to the lower edge of the adapter plate (705) through rotating shafts.

2. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 1, characterized in that: A control switch group (3) is provided in the middle of the left side of the machine (1), and the input end of the control switch group (3) is electrically connected to the output end of the external power supply.

3. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 1, characterized in that: The clamping mechanism (7) further comprises a worm wheel (707) and a worm (708); the lower outer fixed sleeve of the rotating column (704) is provided with a worm wheel (707); the left and right inner walls of the rectangular box (6) are rotatably connected with the worm wheel (707) and the worm (708) are meshedly connected.

4. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 3, characterized in that: The clamping mechanism (7) further comprises a hexagonal bolt (709) and a knob (710). The outside of the rectangular box (6) is provided with the knob (710). The left end of the worm (708) is fixedly connected with the hexagonal bolt (709). The hexagonal bolt (709) and the knob (710) are mounted in coordination.

5. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 2, characterized in that: The machine also includes a rotating mechanism (4), which includes a rotating shaft (42), a first pulley (43), a belt (44), a second pulley (45) and a rotating column (46). The center of the lower end of the turntable (5) is fixedly connected to the rotating column (46), and the lower end of the rotating column (46) is fixedly connected to the second pulley (45). The rear side of the top wall of the machine (1) is rotatably connected to the rotating shaft (42). The middle part of the rotating shaft (42) is fixedly sleeved with the first pulley (43). The first pulley (43) and the second pulley (45) are connected to each other through a belt (44).

6. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 5, characterized in that: The rotating mechanism (4) further comprises a motor (41). The rear wall of the machine platform (1) is fixedly connected to the motor (41) via a fixing block. The upper end of the output shaft of the motor (41) is fixedly connected to the lower end of the rotating shaft (42). The input end of the motor (41) is electrically connected to the output end of the control switch group (3).

7. The high-speed rotating clamping and fastening mechanism for a dual-spindle machining center according to claim 1, characterized in that: Support legs (2) are respectively provided at the four corners of the lower end of the machine (1).

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