Clutch input shaft cylindrical turning positioning device

Abstract

The utility model discloses a clutch input shaft cylindrical turning machining positioning device which comprises a movable base, a positioning insertion ring, an expansion sleeve, a pull rod and an expansion nut, the position of the movable base is adjustable, a rotatable rotating ring is arranged on the movable base, copper bars which are evenly distributed on the circumference are arranged on the end face of one side of the positioning insertion ring, and the expansion sleeve is arranged on the end face of the other side of the positioning insertion ring. A copper bar is sleeved with a copper sleeve, one side of the expansion sleeve is an expansion part, a notch groove is formed in the circumferential wall of the expansion part, the expansion part of the expansion sleeve is arranged in an inner ring defined by the copper bar, the other side of the expansion sleeve penetrates out of an inner hole of the positioning insertion ring and is inserted into an inner hole of the rotating ring, and an annular conical groove is formed in an inner port of the expansion part. The pull rod penetrates through the expansion sleeve in a hollow mode, an expansion protruding block is arranged at one end of the pull rod and is an inverted-cone-shaped block, and the other end of the pull rod penetrates through the expansion sleeve and is provided with an expansion nut. The positioning device is used for pressing and positioning, so that the clutch input shaft rotates along the central axis of the clutch input shaft during rotation, and the coaxiality of outer circle machining is improved.

Description

Technical Field

[0001] The utility model relates to the field of workpiece processing fixtures, in particular to a clutch input shaft outer circle turning processing positioning device. Background Art

[0002] The main function of the clutch input shaft is to transmit the power output of the engine to the transmission, thereby driving the car. It plays a key role in the transmission process, so its processing precision is very high.

[0003] Therefore, when processing the clutch input shaft, most of the time, the lathe is clamped at both ends. One section of the clutch input shaft can be clamped by the three-jaw chuck section on the lathe, and the other end of the clutch input shaft is a groove. The inner wall of the groove is provided with an internal spline tooth. If the internal spline tooth is directly pressed and positioned by the top cone on the lathe, the positioning of the clutch input shaft will be inaccurate due to its long length. The three-jaw clamp drives the clutch input shaft to rotate without rotating along its axis, resulting in a slight deflection. This will result in inaccurate positioning when turning the outer circle, greatly affecting the coaxiality of the outer circle processing, thereby increasing the processing error of the clutch input shaft and reducing the qualified rate. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a clutch input shaft external cylindrical turning processing positioning device, its purpose is that when processing on a lathe, one end of the clutch input shaft is clamped by the three-jaw clamp of the lathe, and the other end is pressed and positioned by the positioning device, so that when it rotates, it is ensured to rotate along the central axis of the clutch input shaft, thereby improving the coaxiality of its external cylindrical processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch input shaft external turning positioning device, comprising a movable base, a positioning insert ring, an expansion sleeve, a pull rod and a tightening nut, the position of the movable base is adjustable, a rotatable rotating ring is arranged on the movable base, one side end face of the positioning insert ring is provided with copper rods evenly distributed around the circumference, a copper sleeve is sleeved on the copper rods, one side of the expansion sleeve is an expansion part, a notch groove is arranged on the circumferential wall of the expansion part, the expansion part of the expansion sleeve is placed in an inner circle surrounded by the copper rods, the other side of the expansion sleeve passes through the inner hole of the positioning insert ring and is inserted into the inner hole of the rotating ring, an annular conical groove is arranged at the inner port of the expansion part, the pull rod passes through the hollow of the expansion sleeve, one end of the pull rod is provided with an expansion protrusion, the expansion protrusion is an inverted cone block, the other end of the pull rod passes through the expansion sleeve and is provided with the expansion nut.

[0006] The rotating ring is connected to the movable base through a bearing, and the lower end of the movable base is connected to the XYZ three-axis slide module.

[0007] The XYZ three-axis slide module includes a first slide, an X-axis guide, a Y-axis guide and a Z-axis guide. A first slide is arranged below the movable base, and the first slide slides along the X-axis guide. A first screw rod is arranged on the X-axis guide, and the first screw rod is threadedly connected to the first slide. A first handwheel is arranged at the end of the first screw rod, and the X-axis guide slides along the Y-axis guide. A second screw rod is arranged on the Y-axis guide and is threadedly connected to the X-axis guide. A second handwheel is arranged at the end of the second screw rod, and a base plate is connected to the lower end of the Z-axis guide. The Y-axis guide slides vertically along the Z-axis guide, and a rotatable third screw rod is arranged on the base plate, and the third screw rod is threadedly connected to the Y-axis guide, and a third handwheel is arranged at the end of the third screw rod.

[0008] The beneficial effect of the utility model is that when the clutch input shaft is processed by a lathe, one end thereof is clamped by a three-jaw chuck, and the other end is inserted into a groove at one end of the clutch input shaft by a copper rod of a positioning insert ring, and the expansion nut is rotated to make the inverted cone block at the end of the pull rod slide along the expansion portion of the expansion sleeve and expand it outward, so that the copper sleeve on the copper rod can be inserted into the internal spline insert teeth in the groove, so that it is evenly positioned in all directions of the circumference, and the expansion sleeve is inserted in the inner hole of the rotating ring of the movable base and rotates with the rotating ring, and the movable base can be adjusted in position, so that the two ends of the clutch input shaft are pressed and accurately positioned, so that it is ensured to rotate along the central axis of the clutch input shaft when it rotates, thereby improving the coaxiality of its outer circle processing.

[0009] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a usage state diagram of a specific implementation mode of the utility model;

[0011] Figure 2 It is a structural diagram of a specific implementation method of the utility model;

[0012] Figure 3 It is a stereoscopic diagram of a positioning insert ring in a specific implementation manner of the utility model.

[0013] In the figure, 1 is a movable base; 2 is a positioning insert ring; 3 is an expansion sleeve; 4 is a pull rod; 5 is a tightening nut; 6 is a rotating ring; 7 is a bearing; 8 is an XYZ three-axis slide module; 100 is a three-jaw chuck; 200 is a clutch input shaft; 21 is a copper rod; 22 is a copper sleeve; 31 is an expansion part; 311 is a tapered groove; 41 is an expansion protrusion; 81 is a first slide; 82 is an X-axis guide rail; 83 is a Y-axis guide rail; 84 is a Z-axis guide rail; 85 is a first screw rod; 86 is a second screw rod; 87 is a third screw rod. DETAILED DESCRIPTION

[0014] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0015] like Figure 1 — Figure 3 As shown, the present embodiment discloses a clutch input shaft outer circle turning positioning device, which is installed on a lathe for use, one end of the clutch input shaft 200 is clamped by a three-jaw chuck 100 of the lathe, and the other end is positioned by the device, the device comprises a movable base 1, a positioning insert ring 2, an expansion sleeve 3, a pull rod 4 and a tightening nut 5, the position of the movable base 1 is adjustable, a rotatable rotating ring 6 is arranged on the movable base 1, a copper rod 21 evenly distributed around the circumference is arranged on one end face of the positioning insert ring 2, a copper sleeve 22 is sleeved on the copper rod 21, one side of the expansion sleeve 3 is an expansion portion 31, a notch groove is arranged on the peripheral wall of the expansion portion 31, and the notch groove is a plurality of symmetrically arranged The expansion part 31 is arranged to expand and retract the peripheral wall of the expansion part 31. The expansion part 31 of the expansion sleeve 3 is placed in the inner circle surrounded by the copper rod 21. The other side of the expansion sleeve 3 passes through the inner hole of the positioning plug ring 2 and is inserted into the inner hole of the rotating ring 6. An annular conical groove 311 is arranged at the inner port of the expansion part 31. The pull rod 4 passes through the hollow of the expansion sleeve 3. An expansion protrusion 41 is arranged at one end of the pull rod 4. The expansion protrusion 41 is in the shape of an inverted cone block. The other end of the pull rod 4 passes through the expansion sleeve 3 and is equipped with an expansion nut 5. The rotation of the expansion nut 5 drives the pull rod 4 to retract and retract, so that the inverted cone block moves in the conical groove 311 of the expansion part 31, so that the outer wall of the expansion part 31 expands or retracts.

[0016] The rotating ring 6 is connected to the movable base 1 through the bearing 7, and the lower end of the movable base 1 is connected to the XYZ three-axis slide module 8, so that the movable base 1 can be freely adjusted up and down, left and right, front and back, thereby ensuring that when the clutch input shaft is machined, the central axes of the lathe's three-jaw chuck and the positioning insert ring 2 can be adjusted to a coaxial state to ensure the machining accuracy.

[0017] The structure of the XYZ three-axis slide module 8 includes a first slide 81, an X-axis guide rail 82, a Y-axis guide rail 83 and a Z-axis guide rail 84. The first slide 81 is arranged below the movable base 1, and the first slide 81 slides along the X-axis guide rail 82. A first screw rod 85 is arranged on the X-axis guide rail 82, and the first screw rod 85 is threadedly connected to the first slide 81. A first hand wheel is arranged at the end of the first screw rod 85. The X-axis guide rail 82 slides along the Y-axis guide rail 83. A second screw rod 86 threadedly connected to the X-axis guide rail 82 is arranged on the Y-axis guide rail 83, and a second hand wheel is arranged at the end of the second screw rod 86. The lower end of the Z-axis guide rail 84 is connected to a base plate, and the Y-axis guide rail 83 slides vertically along the Z-axis guide rail 84. A rotatable third screw rod 87 is arranged on the base plate, and the third screw rod 87 is threadedly connected to the Y-axis guide rail 83. A third hand wheel is arranged at the end of the third screw rod 87. By operating the first hand wheel through this structure, the first screw rod 85 can drive the first slide 81 to adjust the position along the X-axis direction of the X-axis guide rail 82. By operating the second hand wheel to rotate, the second screw rod 86 can drive the X-axis guide rail 82 to slide along the Y-axis guide rail 83. In this way, the first slide 81 can be adjusted in the direction of the Y-axis guide rail 83. By operating the second hand wheel to rotate, the third screw rod 87 can drive the Y-axis guide rail 83 to slide up and down along the Z-axis guide rail 84 for position adjustment. This operation is convenient and reliable. Since the movable base 1 is connected to the first slide 81, the movable base 1 can be adjusted to the optimal position in time.

[0018] By adopting the above technical solution, when the clutch input shaft 200 is processed by a lathe, one end thereof is clamped by the three-jaw chuck 100, and the other end is inserted into the groove 201 at one end of the clutch input shaft by the copper rod 21 of the positioning insert ring 2, and the expansion nut 5 is rotated to make the inverted cone block at the end of the pull rod 4 slide along the expansion portion 31 of the expansion sleeve 3 and expand it outward, so that the copper sleeve 22 on the copper rod 21 can be inserted into the internal spline teeth in the groove, so that it is evenly positioned in all directions of the circumference, and the expansion sleeve 3 is inserted into the inner hole of the rotating ring 6 of the movable base 1 and rotates with the rotating ring 6, and the movable base 1 can be adjusted in position, so that the two ends of the clutch input shaft are pressed and accurately positioned, so that it is ensured to rotate along the central axis of the clutch input shaft 200 when it rotates, thereby improving the coaxiality of its outer circle processing.

[0019] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0020] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clutch input shaft outer circle turning processing positioning device, characterized in that: It includes a movable base, a positioning insert ring, an expansion sleeve, a pull rod and a tightening nut. The position of the movable base is adjustable. A rotatable rotating ring is arranged on the movable base. One end face of the positioning insert ring is provided with copper rods evenly distributed around the circumference, and a copper sleeve is sleeved on the copper rods. One side of the expansion sleeve is an expansion part, and a cutout groove is arranged on the peripheral wall of the expansion part. The expansion part of the expansion sleeve is placed in an inner circle surrounded by the copper rods, and the other side of the expansion sleeve passes through the inner hole of the positioning insert ring and is inserted into the inner hole of the rotating ring. An annular conical groove is arranged at the inner port of the expansion part, and the pull rod passes through the hollow of the expansion sleeve. An expansion protrusion is arranged at one end of the pull rod, and the expansion protrusion is an inverted cone block. The other end of the pull rod passes through the expansion sleeve and is provided with the expansion nut.

2. The clutch input shaft outer circle turning positioning device according to claim 1, characterized in that: The rotating ring is connected to the movable base through a bearing, and the lower end of the movable base is connected to the XYZ three-axis slide module.

3. The clutch input shaft outer circle turning positioning device according to claim 2, characterized in that: The XYZ three-axis slide module includes a first slide, an X-axis guide, a Y-axis guide and a Z-axis guide. A first slide is arranged below the movable base, and the first slide slides along the X-axis guide. A first screw rod is arranged on the X-axis guide, and the first screw rod is threadedly connected to the first slide. A first handwheel is arranged at the end of the first screw rod, and the X-axis guide slides along the Y-axis guide. A second screw rod is arranged on the Y-axis guide and is threadedly connected to the X-axis guide. A second handwheel is arranged at the end of the second screw rod, and a base plate is connected to the lower end of the Z-axis guide. The Y-axis guide slides vertically along the Z-axis guide, and a rotatable third screw rod is arranged on the base plate, and the third screw rod is threadedly connected to the Y-axis guide, and a third handwheel is arranged at the end of the third screw rod.

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