Chuck device for light alloy wheel

Abstract

The utility model provides a chuck device for a light alloy wheel. The chuck device comprises a base, a clamping unit and a positioning unit. The base is cylindrical; the positioning unit is fixedly mounted in the center of the top of the base; the clamping unit comprises a motor, a rotating disc and a plurality of clamping assemblies. A mounting cavity is formed in the base, and the rotating disc is rotatably arranged in the mounting cavity; the motor is fixed on the base; an output shaft of the motor extends into the mounting cavity and is in transmission connection with the turntable; the multiple clamping assemblies are distributed in a circumferential array mode with the axis of the rotary disc as the center. Radial pressure is applied to the outer edge of the hub to fix the hub, the more uniform clamping effect can be achieved, the situation that the clamping force is not uniform possibly in a traditional clamping mode is avoided, the stability and reliability of hub machining are improved, and the machining efficiency is improved. And the problem of hub deformation or uneven deformation possibly caused by clamping of a traditional three-jaw chuck is solved, and the machining quality of the hub is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of chuck devices, in particular to a chuck device for light alloy wheels. Background Art

[0002] In the production process of light alloy wheels, clamping is usually required to ensure that the wheel does not move or deform during processing. The traditional clamping device usually uses a three-jaw chuck to clamp the wheel hub on the lathe by applying an axial clamping force. However, there are some problems with this clamping method. First, since the wheel hub is usually made of light alloy, its material is relatively soft and easily deformed during the clamping process, affecting the processing accuracy and quality of the wheel. Secondly, the traditional axial clamping method may cause uneven distribution of clamping force, causing deformation or uneven deformation of the wheel hub, which in turn affects the balance and safety of the wheel. In addition, axial clamping may also generate vibration and noise during the wheel processing process, affecting the production environment and the work efficiency and comfort of the operator. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a chuck device for light alloy wheels, which solves the problems existing in the traditional axial clamping method, improves the accuracy and stability of wheel hub processing, and thus meets the demand for clamping devices in the wheel production process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A chuck device for a light alloy wheel comprises a base, a clamping unit and a positioning unit; the base is cylindrical; the positioning unit is fixedly mounted at the top center of the base; the clamping unit comprises a motor, a turntable and a plurality of clamping assemblies; a mounting cavity is arranged inside the base, and the turntable is rotatably arranged in the mounting cavity; the motor is fixed on the base; the output shaft of the motor extends into the mounting cavity and is transmission-connected to the turntable; a plurality of the clamping assemblies are arranged in a circumferential array with the axis of the turntable as the center; a mounting hole for accommodating the clamping assembly is arranged on the base, and the mounting hole is communicated with the mounting cavity; the clamping assembly The components include a telescopic rod, a transmission rod and a clamping block; the clamping block is placed above the base; a first connecting rod and a second connecting rod are fixedly arranged at the lower end of the clamping block; the first connecting rod and the second connecting rod extend downward into the mounting hole; the first connecting rod is hingedly connected to the base; the telescopic rod is slidably placed in the mounting hole; one end of the transmission rod is hingedly connected to the second connecting rod, and the other end is hingedly connected to the telescopic rod; a guide rod is fixedly arranged at one end of the telescopic rod away from the second connecting rod; a guide sheet is fixedly arranged on the turntable, and an arc-shaped guide groove matching the guide rod is arranged on the guide sheet, and the guide rod is slidably placed in the arc-shaped guide groove.

[0006] Preferably, the positioning unit includes a positioning seat, a vertical cylinder, an adjusting screw and multiple positioning components; the positioning seat is fixed at the top center of the base; the vertical cylinder is fixed at the top of the positioning seat; the axes of the vertical cylinder, the positioning seat and the base coincide with each other; the multiple positioning components are distributed in a circular array with the axis of the vertical cylinder as the center; the positioning component includes a support plate and an expansion plate; the expansion plate is vertically fixed to one side of the support plate; the support plate is slidably placed on the upper part of the positioning seat, and the expansion plate is placed on the outer side of the vertical cylinder; a guide plate is fixedly provided on one side of the expansion plate close to the vertical cylinder; a guide hole matching the guide plate is provided on the vertical cylinder, and one end of the guide plate can movably pass through the guide hole and extend to the inside of the vertical cylinder; a thread matching the adjusting screw is provided on the inner wall of the vertical cylinder, and the adjusting screw can be movably installed in the vertical cylinder.

[0007] Preferably, the lower end surface of the adjusting screw is provided with a first inclined surface; the upper portion of the guide plate is provided with a second inclined surface matching the first inclined surface; and the first inclined surface is slidably abutted against the second inclined surface.

[0008] Preferably, the positioning assembly also includes a spring; a blind hole for accommodating the spring is provided on the expansion plate, the spring is placed in the blind hole, one end of the spring is fixedly connected to the expansion plate, and the other end is fixedly connected to the vertical tube.

[0009] Preferably, a rubber pressure block is fixedly provided on one side of the clamping block close to the axis of the base.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The present application fixes the wheel hub by applying radial pressure to the outer edge of the wheel hub, which can achieve a more uniform clamping effect, avoids the uneven clamping force that may occur in traditional clamping methods, improves the stability and reliability of wheel hub processing, avoids the problem of wheel hub deformation or uneven deformation that may be caused by traditional three-jaw chuck clamping, ensures the processing quality of the wheel hub, avoids the problem of reprocessing or increased scrap rate caused by wheel hub deformation or uneven deformation, helps to reduce production costs and improve production efficiency, and is safer and more reliable than traditional axial clamping methods, reduces the risk of operators in the processing process, and improves work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the use state of the utility model;

[0014] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0015] Figure 4It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0017] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0018] Figure 7 It is a structural schematic diagram of the positioning component in the utility model;

[0019] Figure 8 It is a structural schematic diagram of the vertical tube in the utility model;

[0020] Fig. 9 It is a structural schematic diagram of the turntable in the utility model;

[0021] Fig.10 It is a structural schematic diagram of the telescopic rod in the utility model;

[0022] Fig.11 It is a structural schematic diagram of the clamping block in the utility model.

[0023] in:

[0024] 1. Base; 2. Mounting hole; 4. Vertical cylinder; 5. Adjusting screw; 6. Expanding plate; 7. Positioning seat; 8. Motor; 9. Turntable; 10. Telescopic rod; 11. Transmission rod; 12. Clamping block; 13. Guide rod; 14. Support plate; 15. Mounting cavity; 16. Guide sheet; 17. Rubber pressure block; 18. Second connecting rod; 19. First connecting rod; 20. Guide plate; 21. Blind hole; 22. Guide hole. DETAILED DESCRIPTION

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 11As shown, a chuck device for a light alloy wheel comprises a base 1, a clamping unit and a positioning unit; the base 1 is cylindrical; a mounting ring is integrally provided at the lower part of the base 1, and a mounting hole 2 is provided on the mounting ring for bolts to pass through and fix the base 1 on a work surface; the positioning unit is fixedly installed at the top center of the base 1 and is used to be inserted into the circular hole in the center of the wheel hub to locate the center of the wheel hub; the clamping unit comprises a motor 8, a turntable 9 and a plurality of clamping components; a mounting cavity 15 is provided inside the base 1, and the turntable 9 is rotatably arranged in the mounting cavity 15, and the turntable 9 The axis of the motor 8 coincides with the axis of the base 1; the motor 8 is fixed on the base 1; the output shaft of the motor 8 extends into the installation cavity 15 and is connected to the turntable 9 in a transmission manner, and the motor 8 can drive the turntable 9 to rotate after it is started; multiple clamping assemblies are arranged in a circular array with the axis of the turntable 9 as the center; a mounting hole 2 for accommodating the clamping assembly is provided on the base 1, one end of the mounting hole 2 is connected to the installation cavity 15, and the other end extends to the upper end surface of the base 1; the clamping assembly includes a telescopic rod 10, a transmission rod 11 and a clamping block 12; the clamping block 12 is placed above the base 1; the clamp The lower end of the tightening block 12 is fixedly provided with a first connecting rod 19 and a second connecting rod 18; the first connecting rod 19 and the second connecting rod 18 extend downward into the mounting hole 2; the first connecting rod 19 is hingedly connected to the base 1; the telescopic rod 10 is slidably placed in the mounting hole 2; one end of the transmission rod 11 is hingedly connected to the second connecting rod 18, and the other end is hingedly connected to the telescopic rod 10; a guide rod 13 is fixedly provided at one end of the telescopic rod 10 away from the second connecting rod 18; a guide sheet 16 is fixedly provided on the turntable 9, and an arc-shaped guide sheet 16 is provided on the guide sheet 16 to match the guide rod 13. When the motor 8 drives the turntable 9 to rotate, the guide rod 13 slides in the arc-shaped guide groove, so that the telescopic rod 10 moves toward or away from the axis of the base 1 along the diameter direction of the base 1, and the second connecting rod 18 is pulled to move by the transmission rod 11, so that the clamping block 12 rotates in a vertical plane with the hinge point of the first connecting rod 19 and the base 1 as the center. When the clamping block 12 moves toward the axis direction of the base 1, the wheel hub is pressed onto the base 1, and when it moves away from the axis direction of the base 1, the wheel hub is released.

[0027] Furthermore, the positioning unit includes a positioning seat 7, a vertical cylinder 4, an adjusting screw 5 and a plurality of positioning components; the positioning seat 7 is fixed at the top center of the base 1; the vertical cylinder 4 is fixed at the top of the positioning seat 7; the axes of the vertical cylinder 4, the positioning seat 7 and the base 1 coincide with each other; a plurality of positioning components are distributed in a circular array with the axis of the vertical cylinder 4 as the center; the positioning component includes a support plate 14 and an expansion plate 6; the expansion plate 6 is vertically fixed to one side of the support plate 14; the support plate 14 is slidably placed on the upper part of the positioning seat 7, and the expansion plate 6 is placed on the outer side of the vertical cylinder 4; a guide plate 20 is fixedly provided on one side of the expansion plate 6 close to the vertical cylinder 4; a guide hole 22 adapted to the guide plate 20 is provided on the vertical cylinder 4, and one end of the guide plate 20 can be It movably passes through the guide hole 22 and extends to the interior of the vertical cylinder 4; a thread compatible with the adjusting screw 5 is provided on the inner wall of the vertical cylinder 4, and the adjusting screw 5 is movably installed in the vertical cylinder 4; when the diameter of the circular hole in the center of the wheel hub is larger and the diameter of the positioning unit is smaller, the adjusting screw 5 is rotated to make the adjusting screw 5 move downward along the axial direction of the vertical cylinder 4 in the vertical cylinder 4, and the guide plate 20 is pushed outward by the contact between the lower end of the adjusting screw 5 and the guide plate 20, thereby making the support plate 14 and the expansion plate 6 move away from the axial direction of the vertical cylinder 4, so that the distance between the multiple expansion plates 6 is increased, thereby realizing the "expansion" effect of the positioning component, and then the circular hole in the center of the wheel hub is supported and positioned by the expansion plate 6.

[0028] Furthermore, the lower end surface of the adjusting screw 5 is provided with a first inclined surface; the upper portion of the guide plate 20 is provided with a second inclined surface matching the first inclined surface; the first inclined surface is slidably abutted against the second inclined surface.

[0029] Furthermore, the positioning assembly also includes a spring; a blind hole 21 for accommodating the spring is provided on the expansion plate 6, and the spring is placed in the blind hole 21, with one end fixedly connected to the expansion plate 6 and the other end fixedly connected to the vertical tube 4. When the adjusting screw 5 is rotated upward, the spring pulls the expansion plate 6 to move in the axial direction of the vertical tube 4, so that the expansion plate 6 returns to its original position.

[0030] Furthermore, a rubber pressing block 17 is fixedly provided on one side of the clamping block 12 close to the axis of the base 1 , and the rubber pressing block 17 presses the edge of the wheel hub to prevent the wheel hub from being crushed.

[0031] When in use, the adjusting screw 5 is rotated according to the diameter of the central circular hole of the wheel hub, and the guide plate 20 is pressed downward by the adjusting screw 5 to make the expansion plate 6 move outward to match the diameter of the central circular hole of the wheel hub, and the wheel hub is placed on the base 1, and the vertical cylinder 4 is inserted into the central circular hole of the wheel hub to position the wheel hub; after the motor 8 is started, it drives the turntable 9 to rotate, pulls the telescopic rod 10 to move toward the center direction of the base 1, and drives the clamping block 12 to rotate through the transmission rod 11, so that the rubber pressure block 17 is pressed on the edge of the wheel hub, and the wheel hub is pressed and fixed on the base 1.

Claims

1. A chuck device for a light alloy wheel, characterized in that: The invention comprises a base (1), a clamping unit and a positioning unit; the base (1) is cylindrical; the positioning unit is fixedly mounted at the top center of the base (1); the clamping unit comprises a motor (8), a turntable (9) and a plurality of clamping components; a mounting cavity (15) is arranged inside the base (1), and the turntable (9) is rotatably arranged in the mounting cavity (15); the motor (8) is fixed on the base (1); the output shaft of the motor (8) extends into the mounting cavity (15) and is transmission-connected to the turntable (9); a plurality of the clamping components are arranged in a circumferential array with the axis of the turntable (9) as the center; a mounting hole (2) for accommodating the clamping component is arranged on the base (1), and the mounting hole (2) is connected to the mounting cavity (15); the clamping component comprises a telescopic rod (10), a transmission rod (11) and a clamping block (12 ); the clamping block (12) is placed above the base (1); the lower end of the clamping block (12) is fixedly provided with a first connecting rod (19) and a second connecting rod (18); the first connecting rod (19) and the second connecting rod (18) extend downward into the mounting hole (2); the first connecting rod (19) is hingedly connected to the base (1); the telescopic rod (10) is slidably placed in the mounting hole (2); one end of the transmission rod (11) is hingedly connected to the second connecting rod (18), and the other end is hingedly connected to the telescopic rod (10); a guide rod (13) is fixedly provided at one end of the telescopic rod (10) away from the second connecting rod (18); a guide sheet (16) is fixedly provided on the turntable (9), and an arc-shaped guide groove matching the guide rod (13) is provided on the guide sheet (16), and the guide rod (13) is slidably placed in the arc-shaped guide groove.

2. The chuck device for a light alloy wheel according to claim 1, characterized in that: The positioning unit comprises a positioning seat (7), a vertical cylinder (4), an adjusting screw (5) and a plurality of positioning components; the positioning seat (7) is fixed at the top center of the base (1); the vertical cylinder (4) is fixed at the top of the positioning seat (7); the axes of the vertical cylinder (4), the positioning seat (7) and the base (1) coincide with each other; the plurality of positioning components are distributed in a circular array with the axis of the vertical cylinder (4) as the center; the positioning components comprise a support plate (14) and an expansion plate (6); the expansion plate (6) is vertically fixed to one side of the support plate (14); the support plate (14) can be The expansion plate (6) is slidably disposed on the upper part of the positioning seat (7), and the expansion plate (6) is disposed on the outer side of the vertical tube (4); a guide plate (20) is fixedly disposed on the expansion plate (6) on one side close to the vertical tube (4); a guide hole (22) matched with the guide plate (20) is disposed on the vertical tube (4), and one end of the guide plate (20) can movably pass through the guide hole (22) and extend to the inside of the vertical tube (4); a thread matched with the adjusting screw (5) is disposed on the inner wall of the vertical tube (4), and the adjusting screw (5) can be movably installed in the vertical tube (4).

3. The chuck device for a light alloy wheel according to claim 2, characterized in that: The lower end surface of the adjusting screw rod (5) is provided with a first inclined surface; the upper part of the guide plate (20) is provided with a second inclined surface matching the first inclined surface; the first inclined surface is slidably abutted against the second inclined surface.

4. The chuck device for a light alloy wheel according to claim 3, characterized in that: The positioning assembly also includes a spring; a blind hole (21) for accommodating the spring is provided on the expansion plate (6); the spring is placed in the blind hole (21), one end of the spring is fixedly connected to the expansion plate (6), and the other end of the spring is fixedly connected to the vertical tube (4).

5. The chuck device for a light alloy wheel according to any one of claims 1 to 4, characterized in that: A rubber pressing block (17) is fixedly arranged on one side of the clamping block (12) close to the axis of the base (1).

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