CN111168429A

CN111168429A - Positioning device for wheel machining

Info

Publication number: CN111168429A
Application number: CN201911344008.9A
Authority: CN
Inventors: 刘会莹; 王凯; 柏翀; 吴群虎; 张彦涛; 王占库; 张健
Original assignee: Citic Dicastal Co Ltd
Current assignee: Citic Dicastal Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-05-19

Abstract

The invention relates to a positioning device for wheel machining, comprising: a frame having a base; the upper surface of the flange plate is provided with a positioning surface which is used for being in contact with a wheel and realizing the axial positioning of the wheel; at least one hydraulic line formed inside the flange and connected to the upper surface of the flange; the first piston is arranged in each hydraulic pipeline and is in action connection with a first positioning ball embedded in the corresponding hydraulic pipeline, and the first positioning ball is arranged to be pressed into the hydraulic pipeline by the wheel when the wheel is arranged on the positioning device and pushes the first piston to move inwards; and the second piston is in action connection with the first piston through hydraulic oil in the hydraulic pipeline, is in action connection with at least one first positioning ball, and is arranged to be in contact with a central hole of the wheel when the wheel is placed on the positioning device and realize radial positioning of the wheel. The invention simplifies the structure of the positioning device for wheel processing and realizes accurate and automatic wheel processing positioning.

Description

Positioning device for wheel machining

Technical Field

The invention relates to a positioning device for wheel machining.

Background

For wheel machining, after turning of an aluminum alloy wheel is completed, a machining center is required to drill a bolt hole and an air valve hole, at present, the wheel is positioned in a machining center drilling procedure by adopting an expansion sleeve or a mandrel structure, and the expansion sleeve has the advantages that high-precision radial positioning of the wheel can be realized, but the defect that an expansion core is pulled by a power source such as an oil cylinder and the like is caused, and the clamp structure is complex; the mandrel has a simple structure, but the positioning accuracy is low.

Based on the current situation, the invention provides the positioning device for wheel machining, which does not need power sources such as an oil cylinder and the like, has a simple clamp structure, and can automatically realize high-precision axial and radial positioning of the wheel.

Disclosure of Invention

The invention aims to provide a positioning device for wheel machining, which does not need a power source such as an oil cylinder and the like, has a simple clamp structure, does not need special operation when a wheel is assembled and disassembled, can automatically realize high-precision axial and radial positioning of the wheel, and automatically restores to a positioning preparation state when the wheel is disassembled after the positioning is finished.

In order to achieve the above object, the present invention provides a positioning device for wheel machining, comprising:

a frame having a base;

the flange plate is arranged on the base, and the upper surface of the flange plate is provided with a positioning surface which is used for contacting with a wheel and realizing the axial positioning of the wheel;

at least one hydraulic line configured inside the flange, the at least one hydraulic line being communicated to the upper surface of the flange;

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 pushes the first piston to move inwards;

and the second piston is in action connection with the first piston through hydraulic oil in the hydraulic pipeline, wherein the second piston is in action connection with at least one second positioning ball, and the at least one second positioning ball is arranged to be in contact with a wheel center hole when a wheel is placed on the positioning device and realize radial positioning of the wheel.

Through the technical scheme provided by the invention, the composition structure and the operation mode of the positioning device for wheel processing are obviously simplified, axial and radial positioning can be automatically completed when the wheel is mounted, and the positioning device can automatically recover to a positioning preparation state after the wheel is taken down, so that preparation is made for next positioning without manual intervention, the operation labor is greatly simplified, and large-scale automatic wheel positioning is realized.

According to one embodiment of the invention, a third positioning ball is arranged between the second piston and the second positioning ball, wherein the third positioning ball is in driving connection with the second piston and the second positioning ball, respectively.

According to one embodiment of the invention, at least three second detent balls are included, which are arranged so as to be distributed uniformly in the circumferential direction of the wheel.

According to one embodiment of the invention, the diameter of the third detent ball is configured to simultaneously contact the at least three second detent balls uniformly.

According to one embodiment of the invention, the first and second positioning balls are configured as steel balls and the third positioning ball is configured as a hollow ball.

According to one embodiment of the invention, the opening of the hydraulic line formed in the interior of the flange on the upper surface of the flange has a smaller diameter than the diameter of the first detent ball formed as a steel ball.

According to one embodiment of the invention, an outer sleeve is mounted inside the flange, and an opening for embedding the second positioning ball is correspondingly provided in the side wall of the outer sleeve.

According to one embodiment of the invention, the diameter of the opening in the side wall of the outer sleeve for the insertion of the second detent ball is smaller than the diameter of the second detent ball.

According to one embodiment of the invention, the opening in the side wall of the outer sleeve for the insertion of the second detent ball is configured as a trumpet, the diameter of which on the inside of the outer sleeve is greater than the diameter on the outside of the outer sleeve.

According to one embodiment of the invention, an end cap is arranged on the outer sleeve, and a return spring is fixedly arranged in the end cap, wherein the upper end of the third positioning ball is connected with the return spring, and the lower end of the third positioning ball is fixedly connected with the second piston.

According to one embodiment of the invention, an inner sleeve is provided which is fixedly connected to the outer sleeve, wherein the inner wall of the outer sleeve is connected to the outer wall of the inner sleeve and the second piston is mounted in the inner sleeve.

According to one embodiment of the invention, a closed space is formed by the first piston, the hydraulic pipeline, the upper surface of the base, the outer wall of the inner sleeve and the second piston, and the closed space is filled with hydraulic oil.

Drawings

FIG. 1 is a front view of an alignment device for wheel machining of the present invention;

FIG. 2 is a top view of an alignment device for wheel machining of the present invention;

fig. 3 is a schematic view of a positioning device for wheel machining according to the present invention in operation.

List of reference numerals:

1. base seat

2. Fastening bolt

3. Flange plate

4. Hydraulic pipeline

5. First piston

6. First positioning ball

7. Second positioning ball

8. Outer sleeve

9. End cap

10. Reset spring

11. Third positioning ball

12. Second piston

13. Inner sleeve

14. Wheel of vehicle

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. The embodiments or examples in the following description are given by way of example only, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus the above terms should not be construed as limiting the present invention.

The positioning device for machining a wheel according to the present invention comprises a frame having a base 1, a flange 3 mounted on the base 1, and at least one hydraulic line 4 configured inside the flange 3. The upper surface of the flange 3 is provided with a locating surface for contacting the wheel 14 and thereby achieving axial location of the wheel. At least one hydraulic line 4 constructed inside the flange 3 is connected to the upper surface of the flange 3.

The positioning device for wheel machining according to the present invention further includes a first piston 5 provided in each hydraulic line 4 and a second piston 12 operatively connected to the first piston 5 by hydraulic oil in the hydraulic line 4. Wherein the first piston 5 is operatively connected to a first positioning ball 6 embedded in the corresponding hydraulic line 4, the first positioning ball 6 being arranged to be pressed by the wheel 14 into the hydraulic line 4 when the wheel 14 is placed on the positioning device and to push the first piston 5 inwards. The second piston 12 is operatively connected to at least one first positioning ball 7, said at least one first positioning ball 7 being arranged to contact the wheel centre hole and to effect radial positioning of the wheel when the wheel 14 is placed on said positioning means.

As shown in fig. 1, a positioning device for machining a wheel according to the present invention includes a frame, and a flange 3 is mounted on a base 1 by, for example, fastening bolts 2. The flange 3 is provided internally with a hydraulic line 4, here for example an oil line 4. One or more hydraulic lines 4 can be considered, and here by way of example three hydraulic lines 4 are provided, in each of which hydraulic lines 4 a first piston 5 and a first detent ball 6 are provided. Therefore, as shown in fig. 2, there are three first pistons 5 and three first positioning balls 6 in total.

Of course, it is also conceivable to provide other numbers of hydraulic lines 4 and to provide a corresponding number of first pistons 5 and first positioning balls 6. A reasonable number of hydraulic lines 4 facilitates smooth and quick transfer of the force and corresponding hydraulic movement exerted by the wheel 14 by squeezing the first locating ball 6.

The oil pipeline 4 is communicated with the upper surface of the flange plate 3, the three first positioning balls 6 are respectively embedded into the oil pipeline 4, and the diameter of the opening of the oil pipeline 4 on the upper surface of the flange plate 3 is smaller than that of the first positioning balls 6, so that the first positioning balls 6 embedded into the corresponding hydraulic pipelines 4 are prevented from being separated from the hydraulic pipelines 4. The first positioning ball 6 is connected to a first piston 5, which first piston 5 is mounted in the oil line 4.

As shown in fig. 1, the outer sleeve 8 is mounted inside the flange 3, three openings, such as circular holes, are formed in the side wall of the outer sleeve 8, and three second positioning balls 7 are respectively inserted into one of the openings. It is also contemplated that other numbers of second detent balls may be provided, and are merely exemplary.

Here, the opening diameter of the circular hole is smaller than the diameter of the second positioning ball 7. The opening in the side wall of the outer sleeve 8 for the insertion of the first positioning ball 7 can be designed as a trumpet, the diameter of which inside the outer sleeve 8 is greater than outside the outer sleeve 8. For example, it is also conceivable that the upper end section of the circular hole is arranged horizontally, and the lower end section is arranged with an inclined angle, so as to facilitate the inward falling of the second steel ball 7.

The end cover 9 is arranged on the upper surface of the outer sleeve 8, the return spring 10 is fixedly arranged in the end cover 9, the spring 10 is connected with the third positioning ball 11, the outer surface of the third positioning ball 11 is contacted with the three second positioning balls 7, the lower end of the third positioning ball 11 is fixedly connected with the second piston 12, the second piston 12 is arranged in the inner sleeve 13, and the outer wall of the inner sleeve 13 is fixedly connected with the inner wall of the outer sleeve 8.

A closed space is 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, and hydraulic oil is filled in the closed space. The diameter of the third detent ball 11 is configured to uniformly contact the at least three first detent balls 7 simultaneously.

According to some embodiments of the present invention, the first and

second positioning balls

6 and 7 may be configured as steel balls, and the third positioning ball 11 may be configured as a hollow ball. A plurality of, for example, three first detent balls 7 may be provided, which are arranged so as to be evenly distributed in the wheel circumferential direction.

Fig. 3 shows the positioning device placing the wheel 14 in both an axially positioned and a radially positioned condition. Here, a positioning surface for contacting the wheel is provided on the upper surface of the flange 3. After the wheel 14 is placed, the alignment surface contacts the wheel 14, such as a flange surface of the wheel 14, thereby achieving axial alignment of the wheel. Furthermore, under the action of the gravity of the wheel 14, the first positioning ball 6 is pressed by the wheel into the hydraulic line 4 and pushes the first piston 5 inwards, thereby continuing to push the second piston 12 outwards through the transmission of hydraulic pressure.

Since the third positioning ball 11 is connected to the return spring 10 at the upper end thereof, 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 ball 7 protrudes from three openings formed in the side wall of the outer sleeve 8 and uniformly extrudes the wheel radially outwards from the central hole of the wheel, so that simple, quick and accurate radial positioning of the wheel is realized.

In summary, according to the exemplary embodiment of the present invention, the positioning process of the positioning device for wheel machining is as follows:

the wheel 14 is placed on the apparatus so that the wheel, and in particular the flange face of the wheel, is in contact with the upper surface of the flange 3, and in particular the flange face of the wheel is in contact with the upper surface of the flange 3. Under the action of the gravity of a wheel 14, the first positioning ball 6 descends to push the first piston 5 to move downwards, hydraulic oil in the closed space is pressurized to push the second piston 12 to move upwards, after the resistance of the gravity of the third positioning ball 11 and a goods position spring 10 is overcome, the third positioning ball 11 moves upwards to push the second positioning ball 7 to move outwards, high-precision radial positioning is realized by the contact of the three second positioning balls 7 and a central hole of the wheel 14, and the axial positioning of the wheel is realized by the contact of the upper surface of the flange plate 3 and the flange surface of the wheel 14.

After the wheel is machined, the wheel 14 is taken down, after the gravity action of the wheel disappears, the reset spring 10 pushes the third positioning ball 11 to move downwards so as to push the second piston 12 to move downwards, the hydraulic oil in the closed space is pressurized to push the first piston 5 to move upwards, so that the first positioning ball 6 moves upwards to reset, and after the third positioning ball 11 moves downwards, the second positioning ball 7 falls back to reset. The device does not need power sources such as an oil cylinder and the like, can realize high-precision axial and radial positioning of the wheels, and has the advantages of simple clamp structure, ingenious design and very high application value.

Finally, the embodiments of the present invention shown in the above description and the drawings are only by way of example and are not meant to limit the technical solutions or concepts of the present invention. All the technical features described herein with respect to the positioning device for wheel machining may be combined or substituted at will within the framework of the inventive concept, without departing from the natural laws or technical norms, without thereby constituting a limitation of the invention.

Claims

1. An alignment device for wheel machining, characterized in that the alignment device for wheel machining comprises:

a frame having a base (1);

the flange plate (3) is arranged on the base (1), and the upper surface of the flange plate (3) is provided with a positioning surface which is used for being in contact with a wheel and realizing the axial positioning of the wheel;

at least one hydraulic line (4) formed inside the flange (3), said at least one hydraulic line (4) being connected to the upper surface of the flange (3);

the first piston (5) is arranged in each hydraulic pipeline (4), wherein the first piston (5) is in action connection with 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 pushes the first piston (5) to move inwards;

a second piston (12) operatively connected to the first piston (5) via hydraulic oil in the hydraulic line (4), wherein the second piston (12) is operatively connected to at least one first positioning ball (7), the at least one first positioning ball (7) being arranged to contact the wheel centre bore when the wheel is placed on the positioning device and to effect radial positioning of the wheel.

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

3. The positioning device for machining wheels according to claim 2, comprising at least three first positioning balls (7), said at least three first positioning balls (7) being arranged so as to be evenly distributed in the circumferential direction of the wheel.

4. The aligning apparatus for wheel machining according to claim 3, wherein the diameter of the third aligning ball (11) is configured to uniformly contact the at least three first aligning balls (7) at the same time.

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

6. The aligning apparatus for wheel machining according to any one of claims 1 to 4, wherein the opening diameter of the hydraulic line (4) configured inside the flange plate (3) at the upper surface of the flange plate (3) is smaller than the diameter of the first aligning ball (6) configured as a steel ball.

7. The positioning device for machining wheels according to any one of claims 1 to 4, wherein an outer sleeve (8) is mounted inside the flange (3), and an opening for embedding the first positioning ball (7) is correspondingly provided in the side wall of the outer sleeve (8).

8. The positioning device for machining wheels according to claim 7, wherein the diameter of the opening for embedding the first positioning ball (7) in the side wall of the outer sleeve (8) is smaller than the diameter of the first positioning ball (7).

9. The locating device for machining wheels according to claim 7, wherein the opening in the side wall of the outer sleeve (8) for embedding the first locating ball (7) is configured as a trumpet hole, the diameter of which inside the outer sleeve is larger than outside the outer sleeve.

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

11. The positioning device for machining wheels according to claim 7, wherein an inner sleeve (13) is provided in fixed connection with the outer sleeve (8), wherein the inner wall of the outer sleeve (8) is connected with the outer wall of the inner sleeve (13), and the second piston (12) is mounted in the inner sleeve (13).

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