A device for cutting nylon sleeves of spline shafts

Abstract

The utility model discloses a device for cutting nylon sleeves of spline shafts, belonging to the technical field of nylon sleeve cutting. The device for cutting nylon sleeves of spline shafts comprises a frame, an L-shaped frame is arranged on the frame, an electric push rod for driving the L-shaped frame to move horizontally is installed on the frame, a mounting frame 1 is arranged below the L-shaped frame, and a cylinder for driving the mounting frame 1 to move longitudinally is installed on the top of the L-shaped frame; the utility model can grind the cut of the nylon sleeve immediately after the nylon sleeve is cut through the setting of a grinding mechanism, remove the burrs at the cut of the nylon sleeve, avoid the burrs affecting the close fit between the nylon sleeve and other components, resulting in abnormal function or poor effect, and through the setting of a chip suction mechanism, the chips generated during cutting and removing burrs can be sucked away, avoiding the chips from accumulating on the frame and affecting the cutting operation.

Description

Technical Field

[0001] The utility model relates to the technical field of nylon sleeve cutting, in particular to a device used for nylon sleeve cutting of a spline shaft. Background Art

[0002] Spline shafts are divided into internal splines and external splines. Both internal and external splines are multi-tooth parts. The splines on the inner cylindrical surface are internal splines, and the splines on the outer cylindrical surface are external splines. In order to prevent the spline shaft from excessive wear during use, it is generally necessary to install a nylon sleeve on the surface of the spline shaft. In order to make the nylon sleeve suitable for spline shafts of different sizes, a nylon sleeve cutting device is required to cut the nylon sleeve.

[0003] For example, in the Chinese patent application number 201520533190.3, a device for improving the cutting accuracy of nylon sleeves of spline shafts is provided. The upper center seat and the lower center seat both move up and down under the control of the sliding guide rail. The upper hydraulic center seat and the lower hydraulic center seat apply a certain pressure to the spline shaft to prevent the spline shaft from rotating. Therefore, compared with the prior art, the utility model improves the spline runout accuracy and the spline straightness accuracy.

[0004] However, when this type of nylon sleeve cutting device is used, burrs will be generated at the cut of the nylon sleeve after it is cut. The burrs may affect the close fit between the nylon sleeve and other components, resulting in malfunction or poor effect.

[0005] Therefore, in order to solve this problem, the utility model provides a device for cutting nylon sleeves of spline shafts. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that after the nylon sleeve is cut, burrs will be generated at the cut, and the burrs may affect the close fit between the nylon sleeve and other components, resulting in abnormal function or poor effect, and a device for cutting nylon sleeves of spline shafts is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A device for cutting nylon sleeves of spline shafts comprises a frame, the frame is provided with an L-shaped frame, the frame is provided with an electric push rod for driving the L-shaped frame to move horizontally, a mounting frame 1 is provided below the L-shaped frame, a cylinder for driving the mounting frame 1 to move longitudinally is provided on the top of the L-shaped frame, a cutter is rotated on the mounting frame 1 through a bearing, a motor for driving the cutter to rotate is also fixed on the mounting frame 1, a grinding mechanism for removing burrs on the edge of the spline sleeve cut is provided on the L-shaped frame, a chip suction mechanism for sucking out debris is provided on the frame, and a fixing component for fixing the spline shaft is also provided on the frame, the grinding mechanism comprises a mounting frame 2 arranged below the L-shaped frame, a grinding disc is rotated on the mounting frame 2 through a bearing, and a motor for driving the grinding disc to rotate is fixed on the mounting frame 2.

[0009] Preferably, the grinding mechanism also includes a rack 1 fixed to a side surface of a mounting frame 1, the outer surface of the rack 1 is meshed with a circular gear, the circular gear is rotatably connected to the L-shaped frame through a rotating shaft, the outer surface of the circular gear is meshed with a rack 2, the mounting frame 2 is fixed to the side surface of the rack 2, and the rack 1 and rack 2 are both slidably connected to the L-shaped frame.

[0010] Preferably, the grinding mechanism further comprises a limit strip fixed at the bottom of the L-shaped frame, a limit block is fixed on the side of the second rack, and the limit block slides on the outer surface of the limit strip.

[0011] Preferably, the debris suction mechanism includes a dust suction pump fixed on the top of the frame, a collection box is also fixed on the top of the frame, a dust suction head is fixed on the mounting frame 2, the dust inlet end of the dust suction pump is connected to the dust suction head through a hose, the dust outlet end of the dust suction pump is connected to the collection box through a hose, and a dustproof net is fixed on the side of the collection box.

[0012] Preferably, the fixing assembly includes a vertical plate fixed on the frame, a driving gear is arranged between the vertical plates, a slot block is fixed at the axis of the driving gear, the slot block is rotatably connected to the vertical plate through a bearing, a driven gear is meshed on the outer surface of the driving gear, and a motor for driving the driven gear to rotate is fixed on the frame.

[0013] Preferably, the slot block is provided with a threaded hole for screwing in a screw.

[0014] Compared with the prior art, the utility model provides a device for cutting nylon sleeves of spline shafts, which has the following beneficial effects:

[0015] The device applied to cutting nylon sleeves of spline shafts can grind the cut of the nylon sleeve immediately after the nylon sleeve is cut by setting a grinding mechanism, so as to remove burrs at the cut of the nylon sleeve, thereby preventing the burrs from affecting the close fit between the nylon sleeve and other components, resulting in abnormal functions or poor effects. The chip suction mechanism can be set to suck away the chips generated during cutting and removing burrs, thereby preventing the chips from accumulating on the frame and affecting the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a device for cutting nylon sleeves on spline shafts proposed by the utility model;

[0017] Figure 2 This is a schematic front view of the structure of a device for cutting nylon sleeves on spline shafts proposed by the utility model;

[0018] Figure 3 It is a schematic structural side view of a device for cutting nylon sleeves of spline shafts proposed by the utility model;

[0019] Figure 4 The utility model is a device for cutting nylon sleeves of spline shafts. Figure 3 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure: 1. frame; 2. L-shaped frame; 3. electric push rod; 4. mounting frame 1; 5. cutter; 6. grinding mechanism; 61. rack 1; 62. circular gear; 63. rack 2; 64. mounting frame 2; 65. grinding disc; 66. limit strip; 67. limit block; 7. chip suction mechanism; 71. dust suction pump; 72. collection box; 73. dust suction head; 74. dust net; 8. fixing assembly; 81. vertical plate; 82. driving gear; 83. slot block; 84. driven gear; 85. threaded hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0023] Reference Figure 1-Figure 4 A device for cutting nylon sleeves of spline shafts comprises a frame 1, an L-shaped frame 2 is arranged on the frame 1, an electric push rod 3 for driving the L-shaped frame 2 to move horizontally is installed on the frame 1, a mounting frame 4 is arranged below the L-shaped frame 2, a cylinder for driving the mounting frame 4 to move longitudinally is installed on the top of the L-shaped frame 2, a cutter 5 is rotated on the mounting frame 4 through a bearing, a motor for driving the cutter 5 to rotate is also fixed on the mounting frame 4, a grinding mechanism 6 for removing burrs on the edge of the spline sleeve cut is arranged on the L-shaped frame 2, a chip suction mechanism 7 for sucking out debris is arranged on the frame 1, a fixing component 8 for fixing the spline shaft is also arranged on the frame 1, the grinding mechanism 6 comprises a mounting frame 2 64 arranged below the L-shaped frame 2, a grinding disc 65 is rotated on the mounting frame 2 64 through a bearing, and a motor for driving the grinding disc 65 to rotate is fixed on the mounting frame 2 64.

[0024] Reference Figure 1-Figure 4 The grinding mechanism 6 also includes a rack 61 fixed to the side of the mounting frame 4, the outer surface of the rack 61 is meshed with a circular gear 62, the circular gear 62 is rotatably connected to the L-shaped frame 2 through a rotating shaft, the outer surface of the circular gear 62 is meshed with a rack 2 63, the mounting frame 2 64 is fixed to the side of the rack 2 63, and the rack 61 and the rack 2 63 are both slidably connected to the L-shaped frame 2.

[0025] Reference Figure 1-Figure 4 The grinding mechanism 6 also includes a limit bar 66 fixed to the bottom of the L-shaped frame 2, and a limit block 67 is fixed to the side of the rack 2 63, and the limit block 67 slides on the outer surface of the limit bar 66.

[0026] Reference Figure 1-Figure 4 The fixed component 8 includes a vertical plate 81 fixed on the frame 1, a driving gear 82 is arranged between the vertical plates 81, a slot block 83 is fixed at the axis of the driving gear 82, the slot block 83 is rotatably connected to the vertical plate 81 through a bearing, a driven gear 84 is meshed on the outer surface of the driving gear 82, and a motor for driving the driven gear 84 to rotate is fixed on the frame 1.

[0027] Reference Figure 1-Figure 4 The slot block 83 is provided with a threaded hole 85 for screwing in a screw.

[0028] In the utility model, when in use, the nylon sleeve is clamped in the slot block 83, and the nylon sleeve is fixed by screwing the screw into the threaded hole 85 from the inside to prevent the nylon sleeve from shifting during cutting. The driven gear 84 is driven by the motor to rotate, and the driven gear 84 drives the driving gear 82 and the slot block 83 to rotate, thereby driving the nylon sleeve to rotate together, so that the nylon sleeve can be cut.

[0029] During cutting, the cylinder can drive the mounting frame 1 4 to move downward, driving the cutter 5 to move downward together, so that the cutter 5 moves to the surface of the nylon sleeve, and the motor drives the cutter 5 to rotate for cutting. The electric push rod 3 can change the lateral position of the cutter 5, and different parts of the nylon sleeve can be cut. After cutting, the cylinder drives the mounting frame 1 4 and the cutter 5 to move upward, thereby driving the rack 1 61 to move upward, and the circular gear 62 is engaged with the rack 1 61 and the rack 2 63, so that the rack 2 63 and the mounting frame 2 64 can be driven to move downward, so that the grinding disc 65 moves to the incision of the nylon sleeve, and the limit block 67 slides on the outer surface of the limit bar 66 to limit the rack 2 63, improve the stability of the rack 2 63 when moving, and drive the grinding disc 65 to rotate by the motor, immediately grind the incision of the nylon sleeve, remove the burrs at the incision of the nylon sleeve, and avoid the burrs affecting the close fit of the nylon sleeve with other components, resulting in abnormal function or poor effect. Example

[0030] Reference Figure 1-Figure 4 The debris suction mechanism 7 includes a dust suction pump 71 fixed on the top of the frame 1, a collection box 72 is also fixed on the top of the frame 1, a dust suction head 73 is fixed on the mounting frame 64, the dust inlet end of the dust suction pump 71 is connected to the dust suction head 73 through a hose, and the dust outlet end of the dust suction pump 71 is connected to the collection box 72 through a hose, and a dustproof net 74 is fixed on the side of the collection box 72.

[0031] In the utility model, after the burr removal is completed, the vacuum pump 71 can be started to generate suction at the vacuum head 73, so that the debris generated during cutting and burr removal is sucked into the collection box 72 through the hose, and the debris is collected to prevent the debris from accumulating on the frame 1 and affecting the cutting operation. The dustproof net 74 is provided to prevent the collection box 72 from being damaged by excessive internal pressure. By installing a sliding door on the collection box 72, the debris can be easily handled.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for cutting nylon sleeves of spline shafts, comprising a frame (1), characterized in that: The frame (1) is provided with an L-shaped frame (2), the frame (1) is provided with an electric push rod (3) for driving the L-shaped frame (2) to move horizontally, a mounting frame (4) is provided below the L-shaped frame (2), a cylinder for driving the mounting frame (4) to move longitudinally is installed on the top of the L-shaped frame (2), a cutter (5) is rotatably mounted on the mounting frame (4) via a bearing, a motor for driving the cutter (5) to rotate is also fixed on the mounting frame (4), and the L-shaped frame (2) is provided with a mounting frame (4) for driving the cutter (5) to rotate. A grinding mechanism (6) for removing burrs from the edge of the spline sleeve cutout is provided, a chip suction mechanism (7) for sucking out chips is provided on the frame (1), a fixing assembly (8) for fixing the spline shaft is also provided on the frame (1), the grinding mechanism (6) comprises a second mounting frame (64) arranged below the L-shaped frame (2), a grinding disc (65) is rotatably provided on the second mounting frame (64) via a bearing, and a motor for driving the grinding disc (65) to rotate is fixed on the second mounting frame (64).

2. The device for cutting nylon sleeves of spline shafts according to claim 1, characterized in that: The grinding mechanism (6) further comprises a rack (61) fixed to the side of the mounting frame (4), the outer surface of the rack (61) being meshed with a circular gear (62), the circular gear (62) being rotationally connected to the L-shaped frame (2) via a rotating shaft, the outer surface of the circular gear (62) being meshed with a rack (63), the mounting frame (64) being fixed to the side of the rack (63), and the rack (61) and the rack (63) being both slidably connected to the L-shaped frame (2).

3. The device for cutting nylon sleeves of spline shafts according to claim 2, characterized in that: The grinding mechanism (6) further comprises a limit strip (66) fixed to the bottom of the L-shaped frame (2), a limit block (67) is fixed to the side of the second rack (63), and the limit block (67) slides on the outer surface of the limit strip (66).

4. The device for cutting nylon sleeves of spline shafts according to claim 1, characterized in that: The dust suction mechanism (7) comprises a dust suction pump (71) fixed to the top of the frame (1); a collection box (72) is also fixed to the top of the frame (1); a dust suction head (73) is fixed to the second mounting frame (64); a dust inlet end of the dust suction pump (71) is connected to the dust suction head (73) via a hose; a dust outlet end of the dust suction pump (71) is connected to the collection box (72) via a hose; and a dustproof net (74) is fixed to the side of the collection box (72).

5. The device for cutting nylon sleeves of spline shafts according to claim 1, characterized in that: The fixing assembly (8) comprises a vertical plate (81) fixed on the frame (1), a driving gear (82) is arranged between the vertical plates (81), a slot block (83) is fixed at the axis of the driving gear (82), the slot block (83) is rotatably connected to the vertical plate (81) via a bearing, a driven gear (84) is meshed on the outer surface of the driving gear (82), and a motor for driving the driven gear (84) to rotate is fixed on the frame (1).

6. The device for cutting nylon sleeves of spline shafts according to claim 5, characterized in that: The slot block (83) is provided with a threaded hole (85) for screwing a screw.

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