Numerical control vertical lathe automatic centering chuck jaw

Abstract

The utility model discloses a numerical control vertical lathe automatic self-aligning collet, related to numerical control vertical lathe technical field, including setting on the big chuck of numerical control vertical lathe equipment, install automatic self-aligning four jaw chuck on the big chuck. The automatic self-aligning four jaw chuck is provided with the horizontal movable transverse plate, is provided with two rotatable adjusting extruding plate on the transverse plate. When the irregular object is clamped, the extruding plate can be closely attached to the surface of the irregular object by rotating the angle of the extruding plate, thereby providing reliable support for the irregular object. Through the cooperation between the extruding plate and the collet, the stability and reliability of the clamping system are significantly enhanced, effectively avoiding the shaking, slipping and other problems of the irregular object during clamping due to uneven stress, greatly improving the quality and efficiency of the clamping operation.

Description

Technical Field

[0001] This utility model belongs to the field of CNC vertical lathe technology, specifically an automatic self-aligning chuck for CNC vertical lathes. Background Technology

[0002] CNC lathes are multi-functional machine tools that can handle various machined shapes of rings, reduce the number of clamping operations, and ensure the required precision for machining rings. Therefore, with the upgrading of enterprise equipment, CNC lathes are widely used in machining. Self-aligning chucks are often used when clamping workpieces.

[0003] In the existing technology field, the jaw structures currently used for clamping irregular objects have significant drawbacks. Specifically, the contact area between the existing jaws and the irregular object is relatively small. This directly leads to uneven distribution of friction and force between the jaws and the object during clamping, resulting in unstable clamping and making it difficult to meet the operational requirements for reliable and stable clamping of irregular objects. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes an automatic self-aligning chuck for CNC vertical lathes.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An automatic self-aligning chuck for a CNC vertical lathe includes a large chuck mounted on the CNC vertical lathe, wherein an automatic self-aligning four-jaw chuck is installed on the large chuck.

[0007] The self-aligning four-jaw chuck is equipped with a horizontally movable cross plate, and the cross plate is equipped with two rotatable and adjustable pressing plates.

[0008] As a further embodiment of this utility model: the automatic self-aligning four-jaw chuck is composed of a disc and jaws, and four jaws are provided.

[0009] As a further embodiment of this utility model: a fixing plate is fixedly connected to the horizontal plate, and both the horizontal plate and the fixing plate are slidably connected to the claw.

[0010] As a further embodiment of this utility model: the horizontal plate is threaded with bolts, and the bolts are fixedly connected to the extrusion plate.

[0011] As a further embodiment of this utility model: a lead screw is rotatably connected to the claw, and the lead screw is threadedly connected to the fixing plate.

[0012] As a further embodiment of this utility model, the width of the horizontal plate is greater than the width of the claw.

[0013] As a further embodiment of this utility model, a baffle is fixedly connected to one side of the horizontal plate.

[0014] As a further embodiment of this utility model: one side of the baffle is flush with the end of the lead screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application utilizes a rotating compression plate angle during clamping operations on irregular objects, ensuring the compression plate tightly adheres to the object's surface and provides reliable support. The coordinated operation between the compression plate and the jaws significantly enhances the stability and reliability of the clamping system, effectively preventing problems such as wobbling and slippage caused by uneven force during clamping, thus greatly improving the quality and efficiency of clamping operations.

[0017] 2. This application incorporates a baffle that effectively and precisely shields the lead screw. During actual machining, machining debris easily scatters everywhere. The baffle significantly prevents debris from falling onto the lead screw, thus avoiding any obstruction to its movement and ensuring the lead screw remains in good operating condition, guaranteeing the normal and stable operation of the entire device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention;

[0019] Figure 2 This is a perspective view of the automatic self-aligning four-jaw chuck and extrusion plate of this utility model;

[0020] Figure 3 This is a perspective view of the claw, extrusion plate, and cross plate of this utility model.

[0021] In the diagram: 1. Large chuck; 2. Machine tool base; 3. Left guide rail; 4. Right guide rail; 5. Main crossbeam; 6. Slide ram; 7. Servo motor; 8. Tool post; 9. Upper crossbeam; 10. Automatic self-aligning four-jaw chuck; 101. Disc; 102. Jaw; 11. Cross plate; 12. Extrusion plate; 13. Fixing plate; 14. Bolt; 15. Lead screw; 16. Baffle. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1

[0024] Please see Figures 1-3 As shown, this application provides an automatic self-aligning chuck for a CNC vertical lathe, including a large chuck 1 mounted on a CNC vertical lathe. The CNC vertical lathe includes a machine tool base 2 for mounting the large chuck 1. A left guide rail 3 and a right guide rail 4 are mounted on the top of the machine tool base 2. A main crossbeam 5 is mounted in front of the left guide rail 3 and the right guide rail 4. A slide 6 is mounted on the main crossbeam 5. A servo motor 7 and a tool post 8 are mounted on the slide 6. An upper crossbeam 9 is mounted on the top of the left guide rail 3 and the right guide rail 4. An automatic self-aligning four-jaw chuck 10 is mounted on the large chuck 1.

[0025] The self-aligning four-jaw chuck 10 is equipped with a horizontally movable cross plate 11, on which two rotatably adjustable pressing plates 12 are mounted. By placing the workpiece on the disc 101, the movement of the jaws 102 is controlled to clamp the workpiece and automatically center it. Then, rotating the lead screw 15 moves the fixed plate 13, which in turn moves the cross plate 11. Finally, rotating the bolt 14 adjusts the angle of the pressing plates 12, allowing them to fit tightly against the surface of irregular objects, providing reliable support. The coordinated operation between the pressing plates 12 and the jaws 102 significantly enhances the stability and reliability of the clamping system.

[0026] The self-aligning four-jaw chuck 10 is composed of a disc 101 and jaws 102, and the jaws 102 are provided with four.

[0027] Independent hydraulic cylinders: Each gripper is equipped with an independent hydraulic cylinder. The piston rod of the cylinder is connected to the gripper. By controlling the oil inlet and outlet of the cylinder, the linear movement of the gripper is achieved. The independent cylinder design allows each gripper to be adjusted independently according to the actual situation of the workpiece clamping surface, thereby ensuring that all four grippers can make good contact with the workpiece clamping surface.

[0028] Control System: The control system is the core component of the four-jaw automatic centering hydraulic chuck. It precisely controls the movement of each hydraulic cylinder based on signals from sensors. Through a pre-set program, the control system automatically adjusts the position of the four jaws, achieving automatic centering and clamping of the workpiece. Simultaneously, the control system also features overload protection and fault diagnosis functions to ensure the safe and reliable operation of the chuck.

[0029] Automatic centering: The control system calculates the deviation between the workpiece center and the spindle rotation center based on data from sensor feedback, and then controls the movement of the four hydraulic cylinders separately. By independently adjusting the position of each gripper, the four grippers gradually move closer to the workpiece center until the workpiece center is coaxial with the spindle rotation center. During the centering process, the guiding mechanism ensures the movement accuracy of the grippers, ensuring that the centering error is within the allowable range.

[0030] A fixing plate 13 is fixedly connected to the horizontal plate 11, and both the horizontal plate 11 and the fixing plate 13 are slidably connected to the claw 102.

[0031] Bolts 14 are threaded onto the horizontal plate 11, and the bolts 14 are fixedly connected to the extrusion plate 12.

[0032] A lead screw 15 is rotatably connected to the claw 102, and the lead screw 15 is threadedly connected to the fixing plate 13.

[0033] The width of the horizontal plate 11 is greater than the width of the claw 102.

[0034] Example 2

[0035] Based on Example 1, see Figure 2 and Figure 3 As shown.

[0036] A baffle 16 is fixedly connected to one side of the horizontal plate 11. By setting the baffle 16, the lead screw 15 can be effectively blocked precisely. In actual processing, the chips generated during processing are very easy to fly around, and the setting of the baffle 16 can significantly prevent the chips from falling onto the lead screw 15, avoiding the chips from hindering the movement of the lead screw 15, thereby ensuring that the lead screw 15 is always in good operating condition and ensuring the normal and stable operation of the entire device.

[0037] One side of the baffle 16 is flush with the end of the lead screw 15.

[0038] The working principle of this invention is as follows: The workpiece is placed on the disc 101, and the movement of the jaws 102 is controlled to clamp the workpiece and automatically center it. Then, rotating the lead screw 15 moves the fixing plate 13, which in turn moves the horizontal plate 11. Next, rotating the bolt 14 adjusts the angle of the pressing plate 12, allowing it to fit tightly against the surface of the irregular object, thus providing reliable support. The coordinated operation between the pressing plate 12 and the jaws 102 significantly enhances the stability and reliability of the clamping system.

[0039] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. An automatic self-aligning chuck for a CNC vertical lathe, comprising a large chuck (1) mounted on a CNC vertical lathe, characterized in that, The large chuck (1) is equipped with an automatic self-aligning four-jaw chuck (10); The self-aligning four-jaw chuck (10) is provided with a horizontally movable horizontal plate (11), and the horizontal plate (11) is provided with two rotatably adjustable pressing plates (12).

2. The automatic self-aligning chuck for a CNC vertical lathe according to claim 1, characterized in that, The self-aligning four-jaw chuck (10) consists of a disc (101) and jaws (102), and there are four jaws (102).

3. The automatic self-aligning chuck for a CNC vertical lathe according to claim 2, characterized in that, A fixing plate (13) is fixedly connected to the horizontal plate (11), and both the horizontal plate (11) and the fixing plate (13) are slidably connected to the claw (102).

4. The automatic self-aligning chuck for a CNC vertical lathe according to claim 1, characterized in that, The horizontal plate (11) is threaded with a bolt (14), which is fixedly connected to the extrusion plate (12).

5. The automatic self-aligning chuck for a CNC vertical lathe according to claim 2, characterized in that, A lead screw (15) is rotatably connected to the jaw (102), and the lead screw (15) is threadedly connected to the fixing plate (13).

6. The automatic self-aligning chuck for a CNC vertical lathe according to claim 2, characterized in that, The width of the horizontal plate (11) is greater than the width of the claw (102).

7. The automatic self-aligning chuck for a CNC vertical lathe according to claim 5, characterized in that, A baffle (16) is fixedly connected to one side of the horizontal plate (11).

8. The automatic self-aligning chuck for a CNC vertical lathe according to claim 7, characterized in that, One side of the baffle (16) is flush with the end of the lead screw (15).

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