Automatic adjusting eccentric clamp

Abstract

The utility model provides an automatic adjusting eccentric clamp, which belongs to the technical field of mechanical equipment, and comprises two automatic adjusting eccentric clamps fixed above a machine tool, the two automatic adjusting eccentric clamps have the same structure, and each automatic adjusting eccentric clamp comprises a mounting body and an adjusting piece, the two installation bodies are oppositely fixed to a headstock and an oil supply device above a machine tool respectively. A plurality of guide grooves communicated with a central through hole of the mounting body are formed in the periphery of the side edge of the mounting body, and each guide groove is provided with an adjusting part in a matched mode; the adjusting part comprises a movable claw, an adjusting screw and a servo motor, the movable claw is arranged on the guide groove in a sliding mode, the end portion of the end, away from the center hole, of the movable claw is connected with the servo motor through the adjusting screw, the servo motor drives the movable claw to stretch out and draw back relative to the center through hole, and then eccentric adjustment of the workpiece is achieved based on the multiple servo motors. According to the deep hole drilling and boring machine, the two automatic adjusting eccentric clamps are installed on an existing deep hole drilling and boring machine, the deep hole drilling and boring machine does not need to be transformed, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment, and in particular relates to an automatic adjusting eccentric clamp. Background Art

[0002] In the prior art, when deep hole boring and drilling machines are used to process eccentric holes, the standard deep hole boring and drilling machines need to be modified, a working platform and a special fixture need to be made, which greatly increases the cost, and the position of the workpiece can only be adjusted, the workpiece is fixed, and the deep hole drilling and cuttings processing is performed. In addition, the workpiece itself cannot be rotated, and the processing accuracy cannot be guaranteed. Utility Model Content

[0003] The utility model aims to provide an automatic adjustment eccentric clamp, which is characterized by comprising two automatic adjustment eccentric clamps fixed above a machine tool, the two automatic adjustment eccentric clamps having the same structural arrangement, the automatic adjustment eccentric clamps comprising a mounting body and an adjustment member, the two mounting bodies being relatively fixed at a headstock box and an oiler above the machine tool respectively;

[0004] The outer periphery of the side edge of the mounting body is provided with a plurality of guide grooves connected to the central through hole thereof, and each guide groove is provided with an adjusting member;

[0005] The adjusting part includes a moving claw, an adjusting screw and a servo motor. The moving claw is slidably arranged on the guide groove. The end of the moving claw away from the center hole is connected to the servo motor through the adjusting screw, and is driven by the servo motor to extend into and retract relative to the center through hole, thereby realizing the eccentricity adjustment of the workpiece based on multiple servo motors.

[0006] Furthermore, the guide groove is an inverted "T"-shaped guide groove, the moving claw is an "I"-shaped moving claw, a threaded through hole is provided in the middle of the moving claw, and the moving claw is threadedly connected to the adjusting screw.

[0007] Furthermore, a chuck body is rotatably fixed to the headstock, and one of the eccentric adjustment clamps is rotatably fixed to the headstock through the chuck body; the oiler is rotatably connected to an oiler base, and the oiler base is movably connected to the upper surface of the machine tool.

[0008] Compared with the prior art, the beneficial effects of the utility model are mainly reflected in:

[0009] 1. The utility model installs two automatically adjustable eccentric fixtures on the existing deep hole boring and drilling machine, so that the eccentric holes of shafts can be processed on the standard deep hole boring and drilling machine, without the need to modify the deep hole boring and drilling machine itself, thus saving processing costs.

[0010] 2. The present utility model is based on two rotatable automatic adjustment eccentric jigs, realizing the rotation of the workpiece. A servo motor is used for rotational positioning, enabling the eccentric hole position of the workpiece to find the center of rotation of the mounting body, improving the machining accuracy, facilitating quick and convenient positioning, and ensuring the machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the position of an automatic adjustment eccentric jig of the present utility model on a boring machine.

[0012] Figure 2 It is a schematic diagram of an eccentric hole part in the present utility model.

[0013] Figure 3 It is a schematic diagram of the structure of an adjusting part in the present utility model.

[0014] 1. Deep hole drilling and boring machine; 2. Headstock; 3. Chuck body; 4. Mounting body; 5. Workpiece; 6. Oil feeder; 7. Oil feeder base; 8. Tool bar; 9. Servo motor; 10. Moving claw; 11. Eccentric hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following will describe an automatic adjustment eccentric jig of the present utility model in more detail with reference to the schematic diagrams, which show the preferred embodiments of the present utility model. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as a broad guidance for those skilled in the art and not as a limitation to the present utility model.

[0016] As Figure 1 shown, an automatic adjustment eccentric jig includes two automatic adjustment eccentric jigs arranged oppositely, and both of the two automatic adjustment eccentric jigs are fixed on an existing deep hole drilling and boring machine 1.

[0017] The two automatic adjustment eccentric jigs include a mounting body 4 and an adjusting part. Both ends of the workpiece 5 are respectively fixed on the two mounting bodies 4, and the eccentricity of the workpiece 5 is adjusted through the adjusting part.

[0018] The two mounting bodies 4 are respectively fixed on the upper surface of the boring machine through the chuck body 3 and the oil feeder 6. Among them, the chuck body 3 is fixed on the headstock 2, the oil feeder 6 is fixed on the oil feeder base 7, the headstock 2 is fixed at the head of the boring machine, and the oil feeder base 7 is slidably arranged on the bed of the boring machine. On the boring machine, the headstock 2, the chuck body 3, the mounting body 4, the workpiece 5, the mounting body 4, the oil feeder 6 and the oil feeder base 7 are arranged in sequence from left to right. At the other end of the oil feeder 6, the tool bar 8 rotates and inserts into it to realize drilling of the workpiece 5.

[0019] Refer to Figure 3, the adjusting member is fixed on the chuck body 3. A plurality of guiding grooves are equidistantly arranged on the outer periphery of the chuck body 3. Each guiding groove is provided with an adjusting member in cooperation. The adjusting member includes a servo motor 9, an adjusting screw rod, and a moving claw 10. Among them, the servo motor 9 is fixed on the outer side of the periphery of the chuck body 3, located at the notch of the guiding groove. Its output end faces the guiding groove and is connected to the adjusting screw rod. The moving claw 10 is slidably arranged at the guiding groove. A threaded through hole is provided in the middle thereof, and the threaded through hole is matched with the adjusting screw rod. By driving the adjusting screw rod to rotate through the servo motor 9, the sliding of the moving claw 10 along the guiding groove is realized.

[0020] Specifically, the guiding groove has an inverted "T" - shaped structure. Correspondingly, the moving claw 10 has an "I" - shaped structure. The convex blocks on both sides of its bottom are clamped in the clamping grooves on both sides of the bottom of the guiding groove, and the concave part in the middle is matched with the upper surface of the guiding groove to realize the limit.

[0021] When the servo motor 9 drives the screw rod to rotate, the moving claw 10 reciprocates and slides in the guiding groove. When the moving claw 10 moves towards the central through - hole of the mounting body 4, the clamping of the workpiece 5 can be realized. Cooperating with a plurality of adjusting members located on the outer periphery of the mounting body 4, the offset of the workpiece 5 relative to the centers of the two mounting bodies 4 can be realized, so as to drive the tool bar 8 to drill holes to complete the processing of the eccentric hole 11. Refer to Figure 2 .

[0022] When no workpiece is clamped, the servo motor 9 is used to drive the moving claw 10 to move towards the central through - hole, and finally the removal and replacement of the moving claw 10 can be realized. On the contrary, by driving the adjusting screw rod to rotate reversely through the servo motor 9, the moving claw 10 can be installed on the guiding groove.

[0023] In the present utility model, the chuck body 3 is rotatably connected to the headstock 2, and the oil feeder 6 is rotatably connected to the oil feeder base 7. Based on the rotatable chuck body 3 and oil feeder 6, the two mounting bodies 4 can rotate, thereby driving the workpiece 5 to rotate. Through the rotation positioning by the servo motor 9, the eccentric hole 9 of the workpiece 5 can find the rotation center of the mounting body 4, and thus the processing accuracy can be improved to complete the processing of the eccentric hole 11.

[0024] The above is only the preferred embodiment of the present utility model, and it does not play any restrictive role on the present utility model. Any person skilled in the art within the technical field, without departing from the technical solution of the present utility model, making any form of equivalent replacement or modification and other changes to the technical solution and technical content disclosed by the present utility model are all within the content of the technical solution of the present utility model and still fall within the protection scope of the present utility model.

Claims

1. An automatically adjustable eccentric clamp, characterized in that: It comprises two automatic adjustment eccentric clamps fixed above the machine tool, the two automatic adjustment eccentric clamps have the same structural setting, the automatic adjustment eccentric clamps comprise a mounting body and an adjustment member, the two mounting bodies are respectively relatively fixed at the headstock box and the oiler above the machine tool; The outer periphery of the side of the mounting body is provided with a plurality of guide grooves connected to the central through hole thereof, and each guide groove is provided with an adjusting member; The adjusting part includes a moving claw, an adjusting screw and a servo motor. The moving claw is slidably arranged on the guide groove, and its end away from the center hole is connected to the servo motor through the adjusting screw, and is driven by the servo motor to achieve extension and retraction relative to the center through hole, thereby achieving eccentric adjustment of the workpiece based on multiple servo motors.

2. The automatic adjusting eccentric clamp according to claim 1, characterized in that: The guide groove is an inverted "T"-shaped guide groove, the moving claw is an "I"-shaped moving claw, a threaded through hole is provided in the middle of the moving claw, and the moving claw is threadedly connected to the adjusting screw.

3. The automatic adjusting eccentric clamp according to claim 1, characterized in that: The headstock is rotatably fixed with a chuck body, and one of the eccentric adjustment clamps is rotatably fixed with the headstock through the chuck body; the oiler is rotatably connected with an oiler base, and the oiler base is movably connected with the upper surface of the machine tool.

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