Shaft piece inner circle turning device

Abstract

The utility model relates to the field of shaft inner circle turning, in particular to a shaft inner circle turning device. The utility model provides a shaft inner circle turning device which can buffer and reduce vibration of a cutter in the machining process, reduce abrasion of the cutter and reduce the risk that the cutter falls off due to looseness of a bolt. A shaft inner circle turning device comprises a machine tool, a triangular claw disc and the like, and the triangular claw disc is rotationally arranged on the left portion of the machine tool. According to the utility model, the cutter is subjected to large impact to generate vibration, so that the lower pressing plate moves outwards, the limiting column is driven to move, the buffer spring deforms, and the cutter is buffered and damped under the action of the buffer spring and the damper, so that the cutter can be buffered and damped in the machining process, the abrasion of the cutter is reduced, and the service life of the cutter is prolonged. And the risk that the tool falls off due to bolt looseness is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the axle piece inner circle lathe processing field especially relates to a kind of axle piece inner circle lathe processing device. BACKGROUND

[0002] Axle piece inner circle lathe processing is a kind of precision turning processing technology specially used to the inner hole of shaft parts, this processing method usually uses numerical control lathe or special lathe, and the inner hole shape and size precision required are realized by rotating workpiece and moving cutter.

[0003] The existing axle piece inner circle lathe processing device is usually fixed cutter on the device that can control cutter movement by bolt, then the shaft parts are fixed on the triangular claw disc of machine tool, the shaft parts are rotated by the rotation of triangular claw disc, and then the shaft parts are cut by cutter, but due to the impact in processing process, cutter will vibrate, when vibration amplitude is too large, cutter will be seriously worn, bolt loosening will lead to cutter falling off, thereby affecting processing precision, and there is certain safety risk.

[0004] Therefore, it is necessary to design an axle piece inner circle lathe processing device capable of buffering and damping cutter in processing process, reducing cutter wear and reducing the risk of cutter falling off caused by bolt loosening. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the existing axle piece inner circle lathe processing device, cutter will vibrate due to the impact in processing process, when vibration amplitude is too large, cutter will be seriously worn, bolt loosening will lead to cutter falling off, thereby affecting processing precision, and there is certain safety risk, the utility model provides an axle piece inner circle lathe processing device capable of buffering and damping cutter in processing process, reducing cutter wear and reducing the risk of cutter falling off caused by bolt loosening.

[0006] The technical scheme of the utility model is: an axle piece inner circle lathe processing device, comprising machine tool, triangular claw disc, telescopic cylinder, moving assembly, cutting assembly and buffer assembly, triangular claw disc is rotatably arranged on the left part of machine tool, telescopic cylinder is connected to the front and rear parts of machine tool, moving assembly capable of adjusting cutter in multiple directions is arranged between telescopic ends of telescopic cylinder, cutting assembly capable of cutting shaft parts is arranged on moving assembly, buffer assembly capable of buffering and damping cutter in processing process is arranged on cutting assembly.

[0007] In one of the embodiments, the mobile assembly comprises a first motor, a first screw rod, a first guide rail, a second guide rail, a second motor, a second screw rod, a mobile frame and a rotating base, the telescopic cylinder is connected with the first guide rail at the telescopic end, the first guide rail is connected with the first motor at the left inner side, the first motor is connected with the first screw rod at the output shaft, the first screw rod is rotatably connected with the adjacent first guide rail, the first screw rod is threadedly connected with the second guide rail, the first guide rail is slidably connected with the second guide rail, the second guide rail is connected with the second motor at the front side, the second motor is connected with the second screw rod at the output shaft, the second screw rod is rotatably connected with the second guide rail, the mobile frame is threadedly connected with the second screw rod, and the mobile frame is slidably connected with the second guide rail.

[0008] In one of the embodiments, the cutting assembly further comprises a tool holder base, a tool holder pressing plate, a screw rod and a tool fixing sleeve, the rotating base is connected with the tool holder base at the upper side, the tool holder base is slidably connected with the tool holder pressing plate at the upper part, the tool holder base is rotatably connected with the screw rod at the right front part, the screw rod is threadedly connected with the tool holder pressing plate, the screw rod is threadedly provided with a nut, the nut is in contact with the tool holder pressing plate, and the tool holder pressing plate is clamped with the tool fixing sleeve between the tool holder base.

[0009] In one of the embodiments, the tool fixing sleeve is threadedly provided with a bolt.

[0010] In one of the embodiments, the cutting assembly further comprises a buffer assembly, the buffer assembly comprises a connecting frame, a limiting column, a buffer spring and a pressing plate, the tool holder pressing plate and the tool holder base are connected with the connecting frame at the front side, the connecting frame is slidably connected with the left and right two limiting columns through the damping at the front and rear parts, the limiting columns at the same transverse position are connected with the pressing plate, and the pressing plate is connected with the buffer spring between the adjacent connecting frames.

[0011] In one of the embodiments, the cutting assembly further comprises an oil injection head, and the oil injection head is connected with the second guide rail at the upper rear side.

[0012] The beneficial effects are: 1. The tool is vibrated by a larger impact, the pressing plate moves outward, the limiting column moves, the buffer spring deforms, the tool is buffered and damped under the action of the buffer spring and the damping, the tool can be buffered and damped in the machining process, the tool wear is reduced, and the risk of tool falling caused by bolt loosening is reduced.

[0013] 2, the utility model discloses a rotating rotary base, the angle of the cutter is adjusted, then starts first motor, drives first screw rod to remove, makes second guide rail move left and right, starts second motor again, drives second screw rod to rotate, makes moving frame move back and forth, adjusts the position of cutter movement, reaches the effect that can adjust cutter in multiple directions, ensures that cutter cuts into workpiece with optimum angle, improves processing accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is the three-dimensional structure schematic diagram of second motor and second screw rod etc. parts of the utility model.

[0016] Figure 3 It is the three-dimensional structure schematic diagram of connecting frame and limit post etc. parts of the utility model.

[0017] Figure 4 It is the three-dimensional structure schematic diagram of first motor and first screw rod etc. parts of the utility model.

[0018] In the figure, 1-machine tool, 2-triangle claw disc, 3-first motor, 31-first screw rod, 4-telescopic cylinder, 5-first guide rail, 6-second guide rail, 61-second motor, 7-second screw rod, 8-moving frame, 9-rotary base, 10-cutter holder base, 11-cutter holder pressing plate, 111-screw rod, 12-cutter fixing sleeve, 13-connecting frame, 14-limit post, 15-buffer spring, 16-pressing plate, 17-oil injection head. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below with reference to the drawings.

[0020] A shaft piece inner circle turning device, such as Figures 1-4As shown, including organic bed 1, triangular claw disc 2, first motor 3, first screw rod 31, telescopic cylinder 4, first guide rail 5, second guide rail 6, second motor 61, second screw rod 7, moving frame 8, rotating base 9, tool holder base 10, tool holder pressing plate 11, screw rod 111, tool fixture 12, connecting frame 13, limiting column 14, buffer spring 15, lower pressing plate 16 and oil injection head 17, the left part of the machine tool 1 is rotatably provided with a triangular claw disc 2, and the front and rear parts of the machine tool 1 are connected with telescopic cylinders 4, the telescopic ends of the telescopic cylinders 4 are connected with first guide rails 5, the left inner sides of the first guide rails 5 are connected with first motors 3, the output shafts of the first motors 3 are connected with first screw rods 31, the first screw rods 31 are rotatably connected with adjacent first guide rails 5, the first screw rods 31 are threadedly connected with second guide rails 6, the first guide rails 5 are slidably connected with the second guide rails 6, the front side of the second guide rail 6 is connected with the second motor 61, the output shaft of the second motor 61 is connected with the second screw rod 7, the second screw rod 7 is rotatably connected with the second guide rail 6, the second screw rod 7 is threadedly connected with the moving frame 8, the moving frame 8 is slidably connected with the second guide rail 6, the upper part of the moving frame 8 is rotatably connected with the rotating base 9 through damping, the upper side of the rotating base 9 is connected with the tool holder base 10, the upper part of the tool holder base 10 is slidably connected with the tool holder pressing plate 11, the right front part of the tool holder base 10 is rotatably connected with the screw rod 111, the screw rod 111 is threadedly connected with the tool holder pressing plate 11, the screw rod 111 is threadedly provided with a nut, the nut is in contact with the tool holder pressing plate 11, the tool holder pressing plate 11 and the tool holder base 10 are clamped with the tool fixture 12, the tool fixture 12 is threadedly provided with a bolt, which is convenient for fixing the tool, the front side of the tool holder pressing plate 11 and the tool holder base 10 is connected with the connecting frame 13, the front and rear parts of the connecting frame 13 are slidably connected with the left and right two limiting columns 14 through damping, the limiting columns 14 at the same horizontal position are connected with the lower pressing plate 16, the lower pressing plate 16 is connected with the adjacent connecting frame 13 through the buffer spring 15, and the upper rear side of the second guide rail 6 is connected with the oil injection head 17.

[0021] When using this device, first place the machine tool 1 in the internal turning area of ​​the shaft, then clamp and fix the shaft part using the triangular jaw disk 2. Next, place the tool fixing sleeve 12 between the tool holder base 10 and the tool holder pressure plate 11, then rotate the screw 111 to move the tool holder pressure plate 11 downwards under the action of the thread. Then, align the nut with the screw 111 and tighten it so that the nut contacts the tool holder pressure plate 11 to fix the tool fixing sleeve 12. Then, put the tool to be used into the tool fixing sleeve 12 and fix the tool with bolts. Then, connect the external lubricating oil through the oil spray head 17 to spray the lubricating oil onto the tool. Then, start the telescopic cylinder 4 to drive the first guide rail 5 to move upwards to adjust the height of the tool. Then, rotate the rotating base 9 to adjust the angle of the tool. Finally, start the first motor 3 to drive the first lead screw 3. 1. The second guide rail 6 moves left and right under the action of the thread. Then, the second motor 61 is started, which drives the second lead screw 7 to rotate, causing the moving frame 8 to move back and forth under the action of the thread. The position of the tool is adjusted, so that the tool can be adjusted in multiple directions to ensure that the tool cuts into the workpiece at the best angle and improves the machining accuracy. Then, the triangular jaw disk 2 is rotated by the machine tool 1, and the tool is used to cut the shaft part. During the machining process, the tool will be subjected to a large impact and vibration, causing the lower pressure plate 16 to move outward, driving the limit post 14 to move. The buffer spring 15 deforms, and the buffer spring 15 and the damping action buffer and dampen the tool, thereby buffering and damping the tool during the machining process, reducing tool wear, and reducing the risk of the tool falling off due to loose bolts.

[0022] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A device for machining the inner circle of a shaft, characterized in that: The machine tool includes a machine tool (1), a triangular jaw disk (2), a telescopic cylinder (4), a moving assembly, a cutting assembly, and a buffer assembly. The machine tool (1) is equipped with a triangular jaw disk (2) rotating on the left side. The machine tool (1) is connected to both the front and rear sides with telescopic cylinders (4). A moving assembly capable of multi-directional adjustment of the cutting tool is provided between the telescopic ends of the telescopic cylinders (4). A cutting assembly capable of cutting shaft-type parts is provided on the moving assembly. A buffer assembly capable of buffering and damping the cutting tool during the machining process is provided on the cutting assembly.

2. The internal turning apparatus for shaft components as described in claim 1, characterized in that: The moving assembly includes a first motor (3), a first lead screw (31), a first guide rail (5), a second guide rail (6), a second motor (61), a second lead screw (7), a moving frame (8), and a rotating base (9). The telescopic cylinder (4) has a first guide rail (5) connected to its telescopic end. A first motor (3) is connected to the inner left side of each first guide rail (5). A first lead screw (31) is connected to the output shaft of each first motor (3). Each first lead screw (31) is rotatably connected to an adjacent first guide rail (5). 1) A second guide rail (6) is threadedly connected between the first guide rail (5) and the second guide rail (6). A second motor (61) is connected to the front side of the second guide rail (6). A second lead screw (7) is connected to the output shaft of the second motor (61). The second lead screw (7) is rotatably connected to the second guide rail (6). A movable frame (8) is threadedly connected to the second lead screw (7). The movable frame (8) is slidably connected to the second guide rail (6). A rotating base (9) is connected to the upper part of the movable frame (8) through damping rotation.

3. The internal turning apparatus for shaft components as described in claim 1, characterized in that: It also includes a cutting assembly, which includes a tool holder base (10), a tool holder pressure plate (11), a screw (111), and a tool retaining sleeve (12). The tool holder base (10) is connected to the upper side of the rotating base (9). The tool holder pressure plate (11) is slidably connected to the upper part of the tool holder base (10). The screw (111) is rotatably connected to the front right part of the tool holder base (10). The screw (111) is threadedly connected to the tool holder pressure plate (11). A nut is threaded on the screw (111). The nut contacts the tool holder pressure plate (11). The tool retaining sleeve (12) is engaged between the tool holder pressure plate (11) and the tool holder base (10).

4. The internal turning apparatus for shaft components as described in claim 3, characterized in that: The tool retainer sleeve (12) is threaded with a bolt.

5. The internal turning apparatus for shaft components as described in claim 1, characterized in that: It also includes a buffer assembly, which includes a connecting frame (13), a limiting post (14), a buffer spring (15), and a lower pressure plate (16). The tool holder pressure plate (11) and the front side of the tool holder base (10) are both connected to the connecting frame (13). The front and rear parts of the connecting frame (13) are connected to the left and right limiting posts (14) by a damping sliding method. The limiting posts (14) at the same lateral position are connected to the lower pressure plate (16). The lower pressure plate (16) is connected to the adjacent connecting frame (13) by a buffer spring (15).

6. The internal turning apparatus for shaft components as described in claim 2, characterized in that: It also includes an oil injector (17), and the oil injector (17) is connected to the upper rear side of the second guide rail (6).

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