A positioning device for wheel processing

Abstract

The present invention relates to a positioning device for wheel machining, which comprises: a machine frame having a base; a flange mounted on the base, the upper surface of which is provided with a positioning surface for contacting the wheel and thereby achieving axial positioning of the wheel; at least one hydraulic pipeline constructed inside the flange and communicating with the upper surface of the flange; a first piston disposed in each hydraulic pipeline and acting on a first positioning ball embedded in the corresponding hydraulic pipeline, the first positioning ball being arranged to be pressed into the hydraulic pipeline by the wheel when the wheel is placed on the positioning device and to push the first piston to move inwards; a second piston acting on the first piston through hydraulic oil in the hydraulic pipeline and acting on at least one first positioning ball, the second piston being arranged to contact the center hole of the wheel and achieve radial positioning of the wheel when the wheel is placed on the positioning device. The present invention simplifies the structure of the positioning device for wheel machining and realizes accurate and automatic wheel machining positioning.

Description

Technical Field

[0001] The present invention relates to a positioning device for wheel machining. Background Art

[0002] For wheel machining, after the aluminum alloy wheel is turned, it is necessary to machine bolt holes and valve holes on a machining center. Currently, when positioning the wheel during the machining center drilling process, a expanding sleeve or a mandrel structure is mostly used. The advantage of the expanding sleeve is that it can achieve high-precision radial positioning of the wheel, but the disadvantage is that a power source such as an oil cylinder is required to pull the expanding core, and the fixture structure is complex; while the mandrel has a simple fixture structure, but the positioning accuracy is relatively low.

[0003] Based on this situation, the present invention provides a positioning device for wheel machining. This device does not require a power source such as an oil cylinder, has a simple fixture structure, can automatically achieve high-precision axial and radial positioning of the wheel. Summary of the Invention

[0004] The object of the present invention is to provide a positioning device for wheel machining, which does not require a power source such as an oil cylinder, has a simple fixture structure, does not require special operations when loading and unloading the wheel, can automatically achieve high-precision axial and radial positioning of the wheel, and automatically returns to the positioning preparation state when the wheel is removed after positioning.

[0005] To achieve the above object, the present invention provides a positioning device for wheel machining, characterized in that the positioning device for wheel machining includes:

[0006] A frame having a base;

[0007] A flange mounted on the base, and a positioning surface for contacting the wheel and thereby achieving axial positioning of the wheel is provided on the upper surface of the flange;

[0008] At least one hydraulic pipeline constructed inside the flange, and the at least one hydraulic pipeline communicates with the upper surface of the flange;

[0009] A first piston provided in each hydraulic pipeline, wherein the first piston is operatively connected to a first positioning ball embedded in the corresponding hydraulic pipeline. The first positioning ball is arranged to be pressed into the hydraulic pipeline by the wheel when the wheel is placed on the positioning device, and to push the first piston to move inward;

[0010] A second piston operatively connected to the first piston through hydraulic oil in the hydraulic pipeline, wherein the second piston is operatively connected to at least one second positioning ball. The at least one second positioning ball is arranged to contact the center hole of the wheel and achieve radial positioning of the wheel when the wheel is placed on the positioning device.

[0011] Through the technical solution proposed by the present invention, the composition structure and operation mode of the positioning device for wheel processing are significantly simplified. It can not only automatically complete axial and radial positioning when the wheel is installed, but also automatically return to the positioning preparation state after the wheel is removed, preparing for the next positioning without manual intervention, greatly simplifying the operation labor and realizing mass automated wheel positioning.

[0012] According to an embodiment of the present invention, a third positioning ball is provided between the second piston and the second positioning ball, and the third positioning ball is respectively in transmission connection with the second piston and the second positioning ball.

[0013] According to an embodiment of the present invention, it includes at least three second positioning balls, and the at least three second positioning balls are arranged to be evenly distributed in the circumferential direction of the wheel.

[0014] According to an embodiment of the present invention, the diameter of the third positioning ball is configured to be able to evenly contact the at least three second positioning balls simultaneously.

[0015] According to an embodiment of the present invention, the first positioning ball and the second positioning ball are configured as steel balls, and the third positioning ball is configured as a hollow ball.

[0016] According to an embodiment of the present invention, the opening diameter of the hydraulic pipeline constructed inside the flange on the upper surface of the flange is smaller than the diameter of the first positioning ball configured as a steel ball.

[0017] According to an embodiment of the present invention, an outer sleeve is installed inside the flange, and an opening for embedding the second positioning ball is correspondingly provided in the side wall of the outer sleeve.

[0018] According to an embodiment of the present invention, the diameter of the opening for embedding the second positioning ball in the side wall of the outer sleeve is smaller than the diameter of the second positioning ball.

[0019] According to an embodiment of the present invention, the opening for embedding the second positioning ball in the side wall of the outer sleeve is configured as a flared hole, and its diameter inside the outer sleeve is larger than its diameter outside the outer sleeve.

[0020] According to an embodiment of the present invention, an end cover is provided on the outer sleeve, and a return spring is fixedly installed inside the end cover. The third positioning ball is connected to the return spring at the upper end, and the third positioning ball is fixedly connected to the second piston at the lower end.

[0021] According to an embodiment of the present invention, an inner sleeve fixedly connected to the outer sleeve is provided, the inner wall of the outer sleeve is connected to the outer wall of the inner sleeve, and the second piston is installed in the inner sleeve.

[0022] According to an embodiment of the present invention, a sealed space is formed by a first piston, a hydraulic pipeline, the upper surface of a base, the outer wall of an inner sleeve, and a second piston, and the sealed space is filled with hydraulic oil. Description of the Drawings

[0023] Figure 1 is the front view of a positioning device for wheel processing according to the present invention;

[0024] Figure 2 is the top view of a positioning device for wheel processing according to the present invention;

[0025] Figure 3 is a schematic diagram when a positioning device for wheel processing according to the present invention is working.

[0026] List of Reference Numerals:

[0027] 1. Base

[0028] 2. Fastening Bolt

[0029] 3. Flange

[0030] 4. Hydraulic Pipeline

[0031] 5. First Piston

[0032] 6. First Positioning Ball

[0033] 7. Second Positioning Ball

[0034] 8. Outer Sleeve

[0035] 9. End Cover

[0036] 10. Return Spring

[0037] 11. Third Positioning Ball

[0038] 12. Second Piston

[0039] 13. Inner Sleeve

[0040] 14. Wheel Detailed Embodiments

[0041] The following further details the specific embodiments of the present invention with reference to the accompanying drawings. The embodiments or examples described below are only for illustration, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present invention.

[0042] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "vertical axis", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0043] The positioning device for wheel machining according to the present invention includes a frame having a base 1, a flange 3 mounted on the base 1, and at least one hydraulic pipeline 4 constructed inside the flange 3. A positioning surface for contacting the wheel 14 and thus achieving axial positioning of the wheel is provided on the upper surface of the flange 3. At least one hydraulic pipeline 4 constructed inside the flange 3 communicates with the upper surface of the flange 3.

[0044] The positioning device for wheel machining according to the present invention further includes a first piston 5 provided in each hydraulic pipeline 4 and a second piston 12 actingly connected to the first piston 5 through hydraulic oil in the hydraulic pipeline 4. The first piston 5 is actingly connected to a first positioning ball 6 embedded in the corresponding hydraulic pipeline 4. The first positioning ball 6 is arranged to be pressed into the hydraulic pipeline 4 by the wheel 14 when the wheel 14 is placed on the positioning device, and push the first piston 5 to move inward. The second piston 12 is actingly connected to at least one first positioning ball 7. The at least one first positioning ball 7 is arranged to contact the center hole of the wheel and achieve radial positioning of the wheel when the wheel 14 is placed on the positioning device.

[0045] As Figure 1 shown, a positioning device for wheel machining according to the present invention includes a frame. The flange 3 is mounted on the base 1 through fastening bolts 2, for example. Hydraulic pipelines 4 are provided inside the flange 3, which are oil pipelines 4 here, for example. It is possible to consider providing one or more hydraulic pipelines 4. Here, as an example, three hydraulic pipelines 4 are provided, and a first piston 5 and a first positioning ball 6 are respectively provided in each hydraulic pipeline 4. Therefore, as Figure 2 shown, there are a total of three first pistons 5 and three first positioning balls 6.

[0046] Of course, it is also possible to consider providing other numbers of hydraulic pipelines 4 and providing corresponding numbers of first pistons 5 and first positioning balls 6. A reasonable number of hydraulic pipelines 4 helps to smoothly and quickly transmit the force exerted by the wheel 14 by squeezing the first positioning ball 6 and the corresponding hydraulic movement.

[0047] The oil pipeline 4 is connected to the upper surface of the flange 3. Three first positioning balls 6 are respectively embedded in the oil pipeline 4. The opening diameter of the oil pipeline 4 on the upper surface of the flange 3 is smaller than the diameter of the first positioning ball 6, thereby preventing the first positioning ball 6 embedded in the corresponding hydraulic pipeline 4 from detaching from the hydraulic pipeline 4. The first positioning ball 6 is connected to the first piston 5, and the first piston 5 is installed in the oil pipeline 4.

[0048] As Figure 1 shown, the outer sleeve 8 is installed inside the flange 3. Three openings, such as round holes, are provided on the side wall of the outer sleeve 8. Three second positioning balls 7 are respectively embedded in one opening. It is also possible to consider setting other numbers of second positioning balls, which is only an example here.

[0049] Here, the opening diameter of the round hole is smaller than the diameter of the second positioning ball 7. The opening for embedding the first positioning ball 7 in the side wall of the outer sleeve 8 can be constructed as a flared hole, whose diameter inside the outer sleeve 8 is larger than that outside the outer sleeve 8. For example, it can also be considered that the upper cross-section of the round hole is set horizontally and the lower cross-section is set at an inclined angle to facilitate the second steel ball 7 to fall back inward.

[0050] The end cover 9 is installed on the upper surface of the outer sleeve 8. A return spring 10 is fixedly installed inside the end cover 9. The spring 10 is connected to the third positioning ball 11. The outer surface of the third positioning ball 11 contacts the three second positioning balls 7. The lower end of the third positioning ball 11 is fixedly connected to the second piston 12, and the second piston 12 is installed inside the inner sleeve 13. The outer wall of the inner sleeve 13 is fixedly connected to the inner wall of the outer sleeve 8.

[0051] A closed space is jointly formed by the first piston 5, the oil pipeline 4, the upper surface of the base 1, the lower surface of the inner sleeve 13, and the second piston 12. The closed space is filled with hydraulic oil. The diameter of the third positioning ball 11 is configured to be able to uniformly contact the at least three first positioning balls 7 simultaneously.

[0052] According to some embodiments of the present invention, the first positioning ball 6 and the first positioning ball 7 can be constructed as steel balls, and the third positioning ball 11 can be constructed as a hollow ball. Multiple, for example, three first positioning balls 7 can be provided, which are arranged to be evenly distributed in the circumferential direction of the wheel.

[0053] Figure 3 The positioning device is shown in a state where the wheel 14 is axially positioned and radially positioned. Here, a positioning surface for contacting the wheel is provided on the upper surface of the flange 3. After placing the wheel 14, this positioning surface contacts the wheel 14, for example, contacts the flange surface of the wheel 14, thereby realizing the axial positioning of the wheel. In addition, under the action of the gravity of the wheel 14, the first positioning ball 6 is pushed into the oil pipeline 4 by the wheel and pushes the first piston 5 to move inward. Thus, through hydraulic transmission, the second piston 12 is further pushed to move outward.

[0054] Since the third positioning ball 11 is connected to the return spring 10 at the upper end, and the lower end of the third positioning ball 11 is fixedly connected to the second piston 12, the second piston 12 overcomes the downward return force of the return spring 10 to move the third positioning ball 11 upward, and simultaneously uniformly contacts and pushes the three first positioning balls 7. The first positioning balls 7 protrude from three openings provided on the side wall of the outer sleeve 8, and radially squeeze the wheel outward from the wheel center hole, thereby realizing simple, rapid, and accurate radial positioning of the wheel.

[0055] In summary, according to the embodiment of the present invention as an example, the positioning process of the positioning device for wheel machining is as follows:

[0056] Place the wheel 14 on the device, making the wheel, especially the flange surface of the wheel, contact the upper surface of the flange plate 3. Especially, the flange surface of the wheel contacts the upper surface of the flange plate 3. Under the action of the gravity of the wheel 14, the first positioning ball 6 descends, pushing the first piston 5 downward. The hydraulic oil in the closed space is pressurized, pushing the second piston 12 upward. After overcoming the gravity of the third positioning ball 11 and the resistance of the cargo position spring 10, the third positioning ball 11 moves upward, thereby pushing the second positioning ball 7 outward. High-precision radial positioning is achieved through the contact of the three second positioning balls 7 with the wheel center hole, and axial positioning of the wheel is achieved through the contact of the upper surface of the flange plate 3 with the flange surface of the wheel 14.

[0057] After the wheel machining is completed, remove the wheel 14. After the gravity of the wheel disappears, the elastic force of the return spring 10 pushes the third positioning ball 11 downward, thereby pushing the second piston 12 downward. The hydraulic oil in the closed space is pressurized, pushing the first piston 5 upward, so that the first positioning ball 6 moves upward to reset. After the third positioning ball 11 moves downward, the second positioning ball 7 falls back to reset. This device does not require a power source such as an oil cylinder, can achieve high-precision axial and radial positioning of the wheel, has a simple fixture structure, ingenious concept, and has strong application value.

[0058] Finally, the embodiments of the present invention described above and shown in the drawings are only examples and do not mean to limit the technical solutions or concepts of the present invention. All the technical features described herein for the positioning device for wheel machining, as long as they do not violate the laws of nature or technical specifications, can be arbitrarily combined or replaced within the framework of the concept of the present invention, all fall within the concept of the present invention, and do not constitute a limitation to the present invention.

Claims

1. A positioning device for wheel machining, characterized in that, the positioning device for wheel machining includes: a frame having a base (1); a flange (3) mounted on the base (1), and a positioning surface for contacting the wheel and thereby achieving axial positioning of the wheel is provided on the upper surface of the flange (3); at least one hydraulic pipeline (4) constructed inside the flange (3), and the at least one hydraulic pipeline (4) communicates with the upper surface of the flange (3); a first piston (5) provided in each hydraulic pipeline (4), wherein the first piston (5) is operatively connected to a first positioning ball (6) embedded in the corresponding hydraulic pipeline (4), and the first positioning ball (6) is arranged to be pressed into the hydraulic pipeline (4) by the wheel when the wheel is placed on the positioning device and to push the first piston (5) to move inward; a second piston (12) operatively connected to the first piston (5) through hydraulic oil in the hydraulic pipeline (4), wherein the second piston (12) is operatively connected to at least one second positioning ball (7), and the at least one second positioning ball (7) is arranged to contact the center hole of the wheel and achieve radial positioning of the wheel when the wheel is placed on the positioning device.

2. The positioning device for wheel machining according to claim 1, wherein, a third positioning ball (11) is provided between the second piston (12) and the second positioning ball (7), and the third positioning ball (11) is respectively in driving connection with the second piston (12) and the second positioning ball (7).

3. The positioning device for wheel machining according to claim 2, wherein, it includes at least three second positioning balls (7), and the at least three second positioning balls (7) are arranged to be evenly distributed in the circumferential direction of the wheel.

4. The positioning device for wheel machining according to claim 3, wherein, the diameter of the third positioning ball (11) is configured to be able to evenly contact the at least three second positioning balls (7) simultaneously.

5. The positioning device for wheel machining according to any one of claims 2 to 4, wherein, the first positioning ball (6) and the second positioning ball (7) are configured as steel balls, and the third positioning ball (11) is configured as a hollow ball.

6. The positioning device for wheel machining according to any one of claims 1 to 4, wherein, the opening diameter of the hydraulic pipeline (4) constructed inside the flange (3) on the upper surface of the flange (3) is smaller than the diameter of the first positioning ball (6) configured as a steel ball.

7. The positioning device for wheel machining according to any one of claims 1 to 4, wherein, a jacket (8) is installed inside the flange (3), and openings for embedding the second positioning balls (7) are correspondingly provided in the side wall of the jacket (8).

8. The positioning device for wheel machining according to claim 7, wherein, the diameter of the opening for embedding the second positioning balls (7) in the side wall of the jacket (8) is smaller than the diameter of the second positioning balls (7).

9. The positioning device for wheel machining according to claim 7, wherein, The opening structure for embedding the second positioning ball (7) in the side wall of the outer sleeve (8) is a flared hole, and its diameter on the inner side of the outer sleeve is larger than that on the outer side of the outer sleeve.

10. The positioning device for wheel processing according to claim 7, wherein, an end cover (9) is provided on the outer sleeve (8), a return spring (10) is fixedly installed inside the end cover (9), wherein the third positioning ball (11) is connected to the return spring (10) at the upper end, and the lower end of the third positioning ball (11) is fixedly connected to the second piston (12).

11. The positioning device for wheel processing according to claim 7, wherein, an inner sleeve (13) fixedly connected to the outer sleeve (8) is provided, wherein the inner wall of the outer sleeve (8) is connected to the outer wall of the inner sleeve (13), and the second piston (12) is installed in the inner sleeve (13).

12. The positioning device for wheel processing according to claim 11, wherein, a sealed space is formed by the first piston (5), the hydraulic pipeline (4), the upper surface of the base (1), the outer wall of the inner sleeve (13) and the second piston (12), and the sealed space is filled with hydraulic oil.

Images