High-precision hub machining device

Abstract

The utility model relates to the technical field of hub fixing devices, and discloses a high-precision hub machining device. The high-precision hub machining device comprises a tray, a plurality of sliding rails, a sliding block, an expansion block, an inverted circular truncated cone, a mounting plate, a linear telescopic mechanism, a positioning boss and a sliding sleeve. The problems that in the prior art, a hub fixing tool is insufficient in guiding precision and poor in clamping stability are solved. According to the device, through the synchronous linkage design of the inverted circular truncated cones and the expansion blocks, radial uniform clamping of the wheel hub radial plate is achieved, the high-precision positioning of the wheel hub in the machining process is kept by combining a sliding rail and a sliding block precision guiding system, and vibration and deviation are effectively restrained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hub fixing devices, for example to a high-precision hub processing device. BACKGROUND

[0002] The description in this section merely provides background information related to the present disclosure and does not constitute prior art.

[0003] As one of the key components of a vehicle, the manufacturing process of a hub directly affects the performance, safety and aesthetics of the vehicle. After spinning forming, the hub usually needs to go through subsequent processing procedures such as fine milling and polishing to ensure that its dimensional accuracy, surface finish and mechanical properties meet the design requirements. However, the implementation of these high-precision processing procedures cannot be achieved without high-precision and stable fixing tools. At present, the hub fixing tool in the prior art has the following problems: lack of high-precision guide mechanism, which leads to easy deviation or vibration of the hub during processing, affecting the processing precision. SUMMARY

[0004] The present application provides a high-precision hub processing device, which solves the problems of insufficient guide precision and poor clamping stability of the hub fixing tool in the prior art through the guidance of the slide rail and the slide block and the self-adaptive clamping structure of the expansion block. The device realizes the radial uniform clamping of the hub spoke through the synchronous linkage design of the inverted round table and the expansion block, and combines the slide rail and the slide block precision guide system to keep the hub in high-precision positioning during processing and effectively suppress vibration and deviation.

[0005] A high-precision hub processing device, comprising: a tray, a plurality of slide rails, a slide block, an expansion block, an inverted round table, a mounting plate, a linear extension mechanism, a positioning boss, and a slide sleeve;

[0006] The tray is circular and can carry the spoke portion of the hub.

[0007] The plurality of slide rails are evenly arranged on the tray in the radial direction.

[0008] The slide block is slidingly arranged in the slide rail.

[0009] The expansion block is connected with the slide block, the lower side of the expansion block is slidingly fitted on the upper part of the tray, the inner side of the expansion block is an inclined arc surface, and the shape of the outer side of the expansion block matches the inner side of the spoke.

[0010] The inverted round table is arranged at the center of the tray, and the side surface of the inverted round table matches the inner side of the expansion block.

[0011] The mounting plate is fixedly arranged below the tray.

[0012] The linear extension mechanism is fixedly arranged on the mounting plate, and the extension rod of the linear extension mechanism is fixedly connected with the inverted round table.

[0013] Positioning boss, arranged on the mounting plate, defines the lower position of the inverted round table;

[0014] Sliding sleeve, arranged on the mounting plate, is sleeved on the telescopic rod of the linear telescopic mechanism and defines the movement direction of the telescopic rod along the sliding sleeve axis.

[0015] Through the guidance of the sliding rail and the sliding sleeve and the adaptive clamping structure of the expansion block, the problems of insufficient guiding precision and poor clamping stability of the hub fixing tool in the prior art are solved. The device realizes the radial uniform clamping of the hub spoke through the synchronous linkage design of the inverted round table and the expansion block, and combines the precise guiding system of the sliding rail and the sliding block to keep the hub in high-precision positioning during the machining process and effectively suppress vibration and deviation.

[0016] In some embodiments, the high-precision hub machining device further comprises a detection hole and a press switch.

[0017] The detection hole is arranged on the tray.

[0018] The press switch is arranged in the detection hole and is located below the spoke when the spoke is attached to the tray and triggers conduction.

[0019] In some embodiments, the detection hole is provided with three or more detection holes arranged on the tray. The press switch is triggered by the three or more evenly distributed detection holes to monitor the attachment state of the hub spoke and the tray in real time, avoiding deformation caused by local suspension.

[0020] In some embodiments, a wedge-shaped protrusion is arranged on the upper part of the outer side of the expansion block, and the minimum distance between the upper side of the tray and the wedge-shaped protrusion is equal to the thickness of the inner side of the spoke.

[0021] The wedge-shaped protrusion arranged on the outer side of the expansion block forms a double positioning surface with the lower side: the upper wedge-shaped protrusion limits axial movement / vibration, and the lower arc surface provides radial pre-tightening force.

[0022] The minimum distance matches the thickness of the spoke to form protection for the inner side of the spoke.

[0023] In some embodiments, the high-precision hub machining device further comprises a first elastic member.

[0024] The first elastic member is arranged in the sliding rail, one end of which is connected with the sliding block to provide a force for moving the sliding block towards the center of the tray.

[0025] In some embodiments, the high-precision hub machining device further comprises a second elastic member.

[0026] The second elastic member has two ends respectively connected with adjacent expansion blocks to provide a force for gathering the expansion blocks.

[0027] In some embodiments, the expansion block further includes: a receiving groove and a pressure plate;

[0028] The receiving groove, which is arc-shaped, is located at the bottom of the expansion block and can accommodate the second elastic element;

[0029] The pressure plate is located in the middle below the second elastic element, and its two ends are connected to the expansion block.

[0030] In some embodiments, the pressure plate has wing-shaped protrusions on both sides of the middle portion, and the wing-shaped protrusions are disposed in the receiving groove and are disposed along the extension direction of the second elastic member.

[0031] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0032] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0033] Figure 1 This is a three-dimensional structural diagram of a high-precision wheel hub processing device provided in an embodiment of this disclosure;

[0034] Figure 2 This is a top view schematic diagram of a high-precision wheel hub processing device provided in an embodiment of this disclosure;

[0035] Figure 3 This is a three-dimensional structural schematic diagram of another high-precision wheel hub processing device provided in this embodiment of the present disclosure;

[0036] Figure 4 This is a side view of a high-precision wheel hub processing device provided in an embodiment of this disclosure;

[0037] Figure 5 This is a cross-sectional schematic diagram of a high-precision wheel hub processing device provided in an embodiment of this disclosure;

[0038] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0039] Figure 7 This is a schematic diagram of the structure of the expansion block provided in an embodiment of this disclosure;

[0040] Figure 8 This is a bottom view of the expansion block provided in an embodiment of this disclosure.

[0041] Figure label:

[0042] 11. Hub; 12. Support frame; 13. First telescopic mechanism; 14. Spoke; 15. Tray; 16. Positioning pin; 17. Inverted frustum; 18. Expansion block; 181. Wedge-shaped protrusion; 182. Receiving groove; 19. Push-button switch; 20. Mounting plate; 201. Positioning boss; 202. Sliding sleeve; 21. Linear telescopic mechanism; 211. Telescopic rod; 22. Slider; 23. Slide rail; 24. First elastic element; 25. Second elastic element; 26. Pressure plate. Detailed Implementation

[0043] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0045] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Unless otherwise specified, the term "plural" means two or more.

[0048] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0049] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0050] Combined Figures 1-8 As shown, the embodiments of the present disclosure provide a high-precision hub processing device, including: a tray 15, a plurality of slide rails 23, a slider 22, an expansion block 18, a frustum 17, a mounting plate 20, a linear telescopic mechanism 21, a positioning boss 201, and a sliding sleeve 202;

[0051] The tray 15 is annular and can carry the web 14 part of the hub 11; through holes corresponding to the bolt holes on the web 14 are provided on the tray 15, and one or more through holes are provided with positioning pins 16. The positioning pins 16 are arranged on the first telescopic mechanism 13, and the first telescopic mechanism 13 is arranged on the support frame 12, and the upper part of the support frame 12 is connected to the tray 15. There are 1 or 2 positioning pins 16 in this application, and the positioning pins 16 can further prevent the circumferential rotation of the hub 11.

[0052] A plurality of slide rails 23 are uniformly arranged along the radial direction of the tray 15 on the tray 15; the slide rails 23 are convex grooves.

[0053] The slider 22 is slidably arranged in the slide rail 23; the slider 22 is a convex slider 22.

[0054] The expansion block 18 is connected to the slider 22, its lower side is slidably fitted to the upper part of the tray 15, its inner side is an inclined arc surface, and the shape of its outer side fits the inner side of the web 14; the expansion block 18 is an arc-shaped sheet.

[0055] The frustum 17 is arranged at the center of the tray 15, and its side is fitted to the inner side of the expansion block 18; when pressed down, the expansion block 18 opens.

[0056] The mounting plate 20 is fixedly arranged below the tray 15;

[0057] The linear telescopic mechanism 21 is fixedly arranged on the mounting plate 20, and its telescopic rod 211 is fixedly connected to the frustum 17; it can be a telescopic device such as a cylinder, a hydraulic cylinder, or an electric cylinder.

[0058] The positioning boss 201 is arranged on the mounting plate 20 to limit the downward movement position of the frustum 17; the upper end of the positioning boss 201 extends into the central hole of the tray 15, and its upper side plays a positioning role for the lower side of the frustum 17.

[0059] A sliding sleeve 202 is mounted on the mounting plate 20 and is fitted onto the telescopic rod 211 of the linear telescopic mechanism 21, limiting its movement along the axis of the sliding sleeve 202. The sliding sleeve 202 and the telescopic rod 211 are in sliding engagement.

[0060] By using the guide rail 23 and the sliding sleeve 202, along with the adaptive clamping structure of the expansion block 18, the problems of insufficient guiding accuracy and poor clamping stability of the wheel hub 11 fixing fixture in the prior art are solved. The device achieves radial uniform clamping of the wheel hub 11 spokes 14 through the synchronous linkage design of the inverted frustum 17 and the expansion block 18. Combined with the precision guiding system of the guide rail 23 and the slider 22, the wheel hub 11 maintains high-precision positioning during processing, effectively suppressing vibration and offset.

[0061] In some embodiments, the high-precision wheel hub 11 processing device further includes: a detection hole and a pressure switch 19;

[0062] The detection hole is located on tray 15;

[0063] The push switch 19 is located in the detection hole and is positioned below the spoke 14 when the spoke 14 is attached to the tray 15, triggering the conduction.

[0064] In some embodiments, three or more detection holes are provided and are arranged substantially evenly on the tray 15. The push switch 19 is triggered by the three or more evenly distributed detection holes to monitor the fit between the spoke 14 of the hub 11 and the tray 15 in real time, so as to avoid processing deformation due to local suspension.

[0065] In some embodiments, the upper part of the outer side of the expansion block 18 is provided with a wedge-shaped protrusion 181, and the minimum distance between the upper side of the tray 15 and the wedge-shaped protrusion 181 is equal to the thickness of the inner side of the spoke 14.

[0066] The wedge-shaped protrusion 181 on the outer side of the expansion block 18 forms a double positioning surface with the lower side: the upper wedge-shaped protrusion 181 restricts axial movement / vibration, and the lower arc surface provides radial preload.

[0067] The minimum spacing matches the thickness of the spokes 14, thus protecting the inner surface of the spokes 14.

[0068] In some embodiments, the high-precision wheel hub 11 processing device is characterized in that it further includes: a first elastic element 24; the first elastic element 24 includes a spring.

[0069] The first elastic element 24 is disposed in the slide rail 23, with one end connected to the slider 22, providing a force to move the slider 22 toward the center of the tray 15.

[0070] In some embodiments, the high-precision wheel hub 11 processing device is characterized by further comprising: a second elastic element 25; the second elastic element 25 includes a spring and an elastic band.

[0071] The second elastic element 25 is connected to the adjacent expansion blocks 18 at both ends, providing a force that brings the expansion blocks 18 together.

[0072] In some embodiments, the expansion block 18 further includes: a receiving groove 182 and a pressure plate 26;

[0073] The receiving groove 182 is arc-shaped and is located at the lower part of the expansion block 18, which can accommodate the second elastic member 25; the end of the second elastic member 25 is fixed in the receiving groove 182.

[0074] The pressure plate 26 is located in the middle below the second elastic member 25, and its two ends are connected to the expansion block 18. The expansion block 18 is provided with a groove for accommodating and installing the pressure plate 26.

[0075] In some embodiments, the pressure plate 26 has wing-shaped protrusions on both sides of the middle portion, and the wing-shaped protrusions are disposed in the receiving groove 182 and are disposed along the extending direction of the second elastic member 25.

[0076] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A high-precision wheel hub processing device, characterized in that, include: The tray, in the shape of a ring, supports the spoke portion of the wheel hub; Multiple slide rails are evenly distributed along the radial direction of the tray; The slider is set within the slide rail; The expansion block is connected to the slider. Its lower side slides against the upper part of the tray. Its inner side is an inclined arc surface, and its outer side is shaped to fit the inner side of the spoke. An inverted frustum is positioned at the center of the tray, with its sides fitting against the inner side of the expansion block; The mounting plate is fixedly installed under the tray; A linear telescopic mechanism is fixedly mounted on the mounting plate, and its telescopic rod is fixedly connected to the inverted truncated cone. A positioning boss is set on the mounting plate to limit the downward movement position of the inverted round frustum; The sliding sleeve is mounted on the mounting plate and is fitted onto the telescopic rod of the linear telescopic mechanism, limiting its movement along the axis of the sliding sleeve.

2. The high-precision wheel hub processing device according to claim 1, characterized in that, Also includes: The detection port is located on the tray; The push-button switch, located in the detection hole, is positioned below the spokes and triggers conduction when the spokes are attached to the tray.

3. The high-precision wheel hub processing device according to claim 1, characterized in that, The detection holes are three or more and are arranged roughly evenly on the tray.

4. The high-precision wheel hub processing device according to claim 1, characterized in that, The upper part of the outer side of the expansion block is provided with a wedge-shaped protrusion, and the minimum distance between the upper side of the tray and the wedge-shaped protrusion is equal to the thickness of the inner side of the spoke.

5. A high-precision wheel hub processing device according to any one of claims 1 to 4, characterized in that, Also includes: The first elastic element, located in the slide rail, is connected at one end to the slider and provides a force that moves the slider toward the center of the tray.

6. A high-precision wheel hub processing device according to any one of claims 1 to 4, characterized in that, Also includes: The second elastic element is connected to the adjacent expansion blocks at both ends, providing a force that brings the expansion blocks together.

7. A high-precision wheel hub processing device according to claim 6, characterized in that, The expansion block also includes: The receiving groove, which is arc-shaped, is located at the bottom of the expansion block and can accommodate the second elastic element; The pressure plate is located in the middle below the second elastic element, and its two ends are connected to the expansion block.

8. The high-precision wheel hub processing device according to claim 7, characterized in that, The pressure plate has wing-shaped protrusions on both sides of the middle part. The wing-shaped protrusions are arranged in the receiving groove and are arranged along the extension direction of the second elastic element.

Images