Device for improving clamping precision of aluminum alloy wheel

Abstract

The utility model belongs to the technical field of device clamps, and particularly relates to a device for improving the clamping precision of an aluminum alloy wheel, which comprises a supporting plate mounted on a detection table, a disc is coaxially connected to the supporting plate in a sliding manner, a plurality of arc-shaped grooves are formed in the disc at equal intervals in the circumferential direction, and one end of a jacking piece is connected to each arc-shaped groove in a sliding manner. The other end of the jacking piece penetrates through the side wall of the supporting plate, a driving device used for driving the disc to rotate is arranged at the bottom end of the disc, a limiting piece corresponding to the jacking piece is arranged in the circumferential direction of the supporting plate, when the disc rotates clockwise, the jacking piece is close to the limiting piece, and when the disc rotates anticlockwise, the jacking piece is far away from the limiting piece. The device is simple to operate, and can ensure the clamping precision even if the riser of the aluminum alloy wheel blank has deformation or burrs, thereby improving the measurement accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of device clamps, and in particular relates to a device for improving the clamping accuracy of aluminum alloy wheels. Background Art

[0002] With the continuous expansion of the automobile market and the improvement of consumers' requirements for automobile quality, automobile manufacturers have increasingly stringent requirements on the precision, quality and production efficiency of aluminum alloy wheels.

[0003] Currently, the wheel blank is placed on the roller measuring table without a clamping device. When the robot places the wheel, it is only guided and positioned by the cone column fixed on the measuring table. However, the newly cast wheel has a lot of residue on the riser and large differences in appearance. When the blank is positioned by the center hole core shaft, the positioning accuracy is low, which leads to large measurement errors, making it difficult to control quality and affecting subsequent production and processing. Utility Model Content

[0004] The purpose of the utility model is to provide a device for improving the clamping accuracy of aluminum alloy wheels, so as to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides a device for improving the clamping accuracy of aluminum alloy wheels, including a support plate installed on a testing table, a disc coaxially slidably connected to the support plate, a plurality of arc grooves equidistantly spaced along the circumference of the disc, one end of a pressure piece slidably connected to the arc groove, the other end of the pressure piece passes through the side wall of the support plate, a driving device for driving the disc to rotate is provided at the bottom end of the disc, and a limiting piece corresponding to the pressure piece is provided along the circumference of the support plate, when the disc rotates clockwise, the pressure piece approaches the limiting piece, and when the disc rotates counterclockwise, the pressure piece moves away from the limiting piece.

[0006] Preferably, the support plate is an annular plate, and the edge of the annular plate close to the limiting member is cut flush.

[0007] Preferably, the pushing member includes a push rod, one end of which is slidably limited in the arc groove, and the other end of the push rod passes through the side wall of the annular plate and extends out of the annular plate, and the push rod is slidably engaged with the annular plate.

[0008] Preferably, a notch is provided at one end of the push rod, and the outer edge of the disc is buckled into the notch. A pin is provided at the notch, and the pin is inserted into the arc groove. The push rod is connected to the disc in a sliding and limiting manner through the pin and the arc groove.

[0009] Preferably, the limiting member includes a fixed shaft fixed on the detection platform, the fixed shaft is arranged along the radial direction of the disc, a limiting block is connected to the fixed shaft, and the limiting block is arranged corresponding to the top pressure member.

[0010] Preferably, the limiting block is a rotating wheel fixedly sleeved on the fixed shaft, and a side of the rotating wheel away from the disc is flanged.

[0011] Compared with the prior art, the present invention has the following advantages and technical effects:

[0012] The utility model provides a device for improving the clamping accuracy of aluminum alloy wheels, which forms a circular frame by arranging multiple limiting members along the circumference of a supporting plate, so as to facilitate the alignment and placement of the aluminum alloy wheel blank and perform preliminary positioning of the aluminum alloy wheel blank. The disc is driven to rotate by a driving device. When the driving device drives the disc to rotate clockwise, one end of the pressing member slides along the path of the arc groove, and at the same time, the other end of the pressing member extends out of the supporting plate under the limiting action of the supporting plate and pushes the ear edge of the aluminum alloy wheel blank, so that the ear edge of the aluminum alloy wheel blank is clamped between the pressing member and the limiting member, so that the aluminum alloy wheel blank is centered and tightened and fixed. When the driving device drives the disc to rotate counterclockwise, the pressing rod is separated from the ear edge of the aluminum alloy wheel blank, so that the aluminum alloy wheel blank is conveniently removed after measurement.

[0013] The utility model has the advantages of simple operation and can ensure the clamping accuracy even if the riser of the aluminum alloy wheel blank has deformation or burrs, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work:

[0015] Figure 1 This is a schematic diagram of the structure of fixing the aluminum alloy wheel blank in the utility model;

[0016] Figure 2 This is a schematic structural diagram of a device for improving the clamping accuracy of aluminum alloy wheels proposed by the present invention;

[0017] Figure 3 This is a top view of a device for improving the clamping accuracy of aluminum alloy wheels proposed by the utility model;

[0018] Among them: 1. annular plate; 2. circular disc; 3. arc groove; 4. push rod; 5. pin shaft; 6. fixed shaft; 7. runner; 8. aluminum alloy wheel blank. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Reference Figures 1 to 3 As shown, the utility model provides a device for improving the clamping accuracy of aluminum alloy wheels, including a support plate installed on a testing table, a disc 2 is coaxially slidably connected to the support plate, a plurality of arc-shaped grooves 3 are provided on the disc 2 at equal intervals along the circumference, one end of a top pressure piece is slidably connected to the arc-shaped groove 3, and the other end of the top pressure piece passes through the side wall of the support plate, a driving device for driving the disc 2 to rotate is provided at the bottom end of the disc 2, and a limiting piece corresponding to the top pressure piece is provided along the circumference of the support plate. When the disc 2 rotates clockwise, the top pressure piece approaches the limiting piece, and when the disc 2 rotates counterclockwise, the top pressure piece moves away from the limiting piece.

[0022] In this embodiment, the driving device is a servo motor, the output shaft of the servo motor is fixedly connected to the disc 2, the number of the pressing members is preferably three, and the angle between two adjacent pressing members is 120°.

[0023] By arranging a plurality of limiting members along the circumference of the support plate to form a circular frame, it is convenient to align and place the aluminum alloy wheel blank 8 and perform preliminary positioning of the aluminum alloy wheel blank 8. The disc 2 is driven to rotate by the driving device. When the driving device drives the disc 2 to rotate clockwise, one end of the pressing member slides along the path of the arc groove 3. At the same time, the other end of the pressing member extends out of the support plate under the limiting action of the support plate and pushes the ear edge of the aluminum alloy wheel blank 8, and presses on the inner ear edge of the aluminum alloy wheel blank 8, so that the aluminum alloy wheel blank 8 is centered and tightened. When the driving device drives the disc 2 to rotate counterclockwise, the pressing rod is separated from the ear edge of the aluminum alloy wheel blank 8, so that the measured aluminum alloy wheel blank 8 is convenient to remove.

[0024] The utility model has the advantages of simple operation and can ensure the clamping precision even if the riser of the aluminum alloy wheel blank is deformed or has burrs, thereby improving the measurement accuracy.

[0025] Furthermore, the supporting plate is an annular plate 1, and the edge of the annular plate 1 close to the limiting member is cut flush.

[0026] The annular plate 1 can support the aluminum alloy wheel blank 8 on the one hand, and limit the pressing part on the other hand.

[0027] Furthermore, the pressing member includes a push rod 4, one end of which is slidably limited in the arc groove 3, and the other end of the push rod 4 passes through the side wall of the annular plate 1 and extends out of the annular plate 1, and the push rod 4 is slidably engaged with the annular plate 1.

[0028] Through the rotation of the disc 2 and the guiding action of the arc groove 3, the push rod 4 moves back and forth on the annular plate 1, and under the action of the limiter, the aluminum alloy wheel blank 8 is centrally clamped.

[0029] Furthermore, a notch is provided at one end of the push rod 4, and the outer edge of the disc 2 is buckled into the notch. A pin 5 is provided at the notch, and the pin 5 is inserted into the arc groove 3. The push rod 4 is connected to the disc 2 in a sliding and limiting manner through the pin 5 and the arc groove 3.

[0030] The notches on the push rods 4 allow the push rods 4 to move relative to the edge of the disc 2. The pins 5 are provided to ensure that the push rods 4 and the disc 2 are precisely matched, thereby ensuring that when the disc 2 rotates at the same angle, the movement distance of each push rod 4 is equal, thereby ensuring that the aluminum alloy wheel blank 8 corresponds to the center point on the measuring platform when it is centered and tightened, thereby ensuring the accuracy of the measurement.

[0031] Furthermore, the limiting member includes a fixed shaft 6 fixed on the detection platform, the fixed shaft 6 is arranged along the radial direction of the disc 2, and a limiting block is connected to the fixed shaft 6, and the limiting block is arranged corresponding to the top pressure member.

[0032] The aluminum alloy wheel blank 8 is preliminarily positioned by the provided limiting blocks, and the aluminum alloy wheel blank 8 is fixed in the center by the pressing of the push rod 4 .

[0033] Furthermore, the limiting block is a rotating wheel 7 fixedly sleeved on the fixed shaft 6 , and a side of the rotating wheel 7 away from the disc 2 is flanged.

[0034] Specifically, the runner 7 can slide on the fixed shaft 6 to match the aluminum alloy wheel blank 8 of different diameters, and the runner 7 is finally fixedly sleeved on the fixed shaft 6 through the fastening bolts threaded on the fixed shaft 6, so as to achieve preliminary positioning of the aluminum alloy wheel blank 8.

[0035] The device for improving the clamping accuracy of aluminum alloy wheels provided by the present invention has a working principle: the aluminum alloy wheel blank 8 formed by die casting is grabbed by the manipulator equipped on the die casting machine, and is placed on the annular plate 1 after removing the slag. It should be noted that according to the specifications of the aluminum alloy wheel blank 8, the distance between the runner 7 and the center base point is locked so that the ear edge of the aluminum alloy wheel blank 8 placed on the annular plate 1 just abuts against the folded edge on the runner 7, thereby achieving preliminary positioning of the aluminum alloy wheel blank 8. When the disc 2 is driven by the driving device to rotate clockwise, one end of the push rod 4 slides along the path of the arc groove 3, and at the same time, the other end of the push rod 4 extends out of the annular plate 1 under the limiting action of the annular plate 1 and clamps the aluminum alloy wheel blank 8. The ear edge is pushed to clamp the ear edge of the aluminum alloy wheel blank 8 between the push rod 4 and the flange of the runner 7, so that the aluminum alloy wheel blank 8 is centered and tightened, so that the center of the aluminum alloy wheel blank 8 corresponds to the center point on the measuring platform, thereby realizing accurate clamping of the aluminum alloy wheel blank 8, and at the same time, turning on the measuring equipment to measure the clamped aluminum alloy wheel blank 8. After the measurement is completed, the driving device drives the disc 2 to rotate counterclockwise, and the push rod 4 is separated from the ear edge of the aluminum alloy wheel blank 8 and transferred by the manipulator. In addition, the utility model controls the rotation angle of the disc 2, thereby controlling the stroke of the push rod 4, thereby being suitable for the clamping and fixation of aluminum alloy wheel blanks 8 of different specifications, further improving the scope of use and reducing costs.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0037] The above are only preferred specific implementation methods of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in this application should be covered by the scope of protection of the present application.

Claims

1. A device for improving the clamping accuracy of aluminum alloy wheels, characterized in that: The invention comprises a supporting plate mounted on a testing platform, wherein a disc (2) is coaxially slidably connected to the supporting plate, a plurality of arcuate grooves (3) are provided on the disc (2) at equal intervals along the circumference, one end of a pressing member is slidably connected to the arcuate groove (3), the other end of the pressing member passes through the side wall of the supporting plate, a driving device for driving the disc (2) to rotate is provided at the bottom end of the disc (2), and a limiting member corresponding to the pressing member is provided along the circumference of the supporting plate, when the disc (2) rotates clockwise, the pressing member approaches the limiting member, and when the disc (2) rotates counterclockwise, the pressing member moves away from the limiting member.

2. The device for improving the clamping accuracy of aluminum alloy wheels according to claim 1, characterized in that: The supporting plate is an annular plate (1), and the edge of the annular plate (1) close to the limiting member is cut flush.

3. The device for improving the clamping accuracy of aluminum alloy wheels according to claim 2, characterized in that: The push member includes a push rod (4), one end of which is slidably limited in the arc groove (3), and the other end of which passes through the side wall of the annular plate (1) and extends out of the annular plate (1), and the push rod (4) is in sliding engagement with the annular plate (1).

4. The device for improving the clamping accuracy of aluminum alloy wheels according to claim 3, characterized in that: One end of the push rod (4) is provided with a notch, the outer edge of the disc (2) is buckled into the notch, a pin shaft (5) is provided at the notch, the pin shaft (5) is inserted into the arc groove (3), and the push rod (4) is connected to the disc (2) in a sliding and limiting manner through the pin shaft (5) and the arc groove (3).

5. The device for improving the clamping accuracy of aluminum alloy wheels according to claim 1, characterized in that: The limiting member comprises a fixed shaft (6) fixed on the detection platform, the fixed shaft (6) is arranged along the radial direction of the disc (2), a limiting block is connected to the fixed shaft (6), and the limiting block is arranged corresponding to the top pressure member.

6. The device for improving the clamping accuracy of aluminum alloy wheels according to claim 5, characterized in that: The limit block is a rotating wheel (7) fixedly sleeved on the fixed shaft (6), and the side of the rotating wheel (7) away from the disc (2) is flanged.

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