Positioning device for wheel hub laser code engraving

Abstract

The utility model relates to a positioning device for laser code engraving of a hub. The device comprises a base, the base panel is rotatably connected to the base around the axis of the base panel, and the base panel can be supported on an inner wheel lip of the hub; the supporting rod is connected to the center of the base panel; the supporting adjusting piece is adjustably connected to the supporting rod in the axial direction; the positioning core is arranged on the supporting rod in a sleeving mode and connected to the supporting adjusting piece in an axial floatable mode, a positioning conical face is arranged on the outer ring face of the positioning core, and part of the positioning core can stretch into the hub center hole and make the positioning conical face make contact with the junction between the inner wall and the bottom face of the hub center hole; and the telescopic positioning device is installed on the base panel in a position-adjustable mode, the telescopic positioning device comprises a positioning rod capable of stretching out and drawing back in the direction perpendicular to the surface of the base panel, and the positioning rod can stretch out of the window in the spoke. The adjusting device is wide in adjusting range, high in adjusting precision and high in universality, production efficiency is improved, and the requirements of different specifications and batch production can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hub manufacturing jig, especially point to a kind of positioning device for hub laser code. BACKGROUND

[0002] At present, in the hub manufacturing process, laser technology is used to code in the inner and outer rim, flange surface, spoke and other parts of hub, to improve the appearance and the identification of wheel type parameters of product. These codes, trademarks, patterns not only give the hub higher value, but also improve its ornamental.

[0003] At present, 4-axis adjustable joint laser generator is usually used for coding. However, the existing technology has limitations in fast and accurate positioning. The existing laser coding equipment relies heavily on the center positioning of hub during coding process, but the existing positioning tool has deficiencies in accuracy, which leads to errors in coding position and affects the consistency of coding. In addition, the existing positioning tool cannot meet the needs of different specifications of hub, especially in batch production, the adjustment range of tool is limited, which limits its application scenarios. When coding different sizes of hub, the adjustment time of existing tool is longer, especially the positioning needs to be adjusted manually frequently, which affects production efficiency. SUMMARY

[0004] Therefore, the utility model provides a kind of positioning device for hub laser code, adjustment range is wide and adjustment precision is high, and it is strong in universality, improves production efficiency, and can meet the needs of different specifications and batch production.

[0005] To solve the above technical problems, the utility model provides a kind of positioning device for hub laser code, the hub includes external edge, flange, spoke connecting the flange and the external edge, the spoke is provided with window, and a plurality of bolt holes are distributed in the center of a plurality of bolt holes along the flange center axis of the hub, and the hub center hole is arranged, comprising:

[0006] Base;

[0007] Base panel, rotatably connected to the base around its own axis, the base panel can be supported on the inner lip of the hub;

[0008] Supporting rod, connected to the center of the base panel;

[0009] Supporting adjusting part, axially adjustably connected to the supporting rod;

[0010] A positioning core is sleeved on the support rod and is connected to the support adjusting member in an axially floating manner, an outer annular surface of the positioning core is provided with a positioning conical surface, and part of the positioning core can extend into the hub central hole and make the positioning conical surface contact the intersection between the inner wall and the bottom surface of the hub central hole;

[0011] A telescopic positioning device is adjustably installed on the base panel, the telescopic positioning device comprises a positioning rod which can be telescopically extended in a direction perpendicular to the surface of the base panel, and the positioning rod can extend out of the window on the spoke.

[0012] In an embodiment of the present application, the support rod is a threaded rod, and the support rod is threadedly connected to the center of the base panel.

[0013] In an embodiment of the present application, the support adjusting member comprises at least one adjusting nut which is threadedly connected to the support rod.

[0014] In an embodiment of the present application, a planar bearing is arranged between the middle part of the base and the middle part of the base panel.

[0015] In an embodiment of the present application, a first spring which is sleeved on the support rod is arranged between the positioning core and the support adjusting member, and the first spring is used to provide a force for moving the positioning core away from the support adjusting member.

[0016] In an embodiment of the present application, the telescopic positioning device comprises a moving seat and a threaded sleeve which is installed on the moving seat, and the positioning rod is threadedly connected in the threaded sleeve.

[0017] In an embodiment of the present application, the moving seat is provided with a sliding groove, and an adjusting screw is arranged between the sliding groove and the base panel.

[0018] In an embodiment of the present application, the base comprises a locking column, a locking device is arranged between the locking column and the circumferential side surface of the base panel, and the circumferential side surface of the base panel is provided with annularly distributed conical grooves.

[0019] The locking device comprises a locking nut, a second spring, a locking screw, a locking head and a spring base.

[0020] The locking column is provided with a groove, one end of the spring base is provided with a counterbore, the locking head comprises a trapezoidal part which cooperates with the conical groove through a conical surface and a positioning column which is inserted into the counterbore, and one end of the spring base abuts against the locking head.

[0021] The second spring is arranged in the groove and abuts against the other end of the spring base and the bottom wall of the groove, and the second spring can provide a force for the trapezoidal part to tightly abut against the tapered surface of the tapered groove.

[0022] The locking screw comprises a threaded segment and a sliding segment, the sliding segment extends into the groove from the side wall of the locking column and is connected with the spring base, and the locking nut is threadedly connected with the threaded segment and abuts against the side wall of the locking column.

[0023] In an embodiment of the utility model, further include hang in the threaded segment pull buckle.

[0024] In an embodiment of the utility model, the material of the positioning core is nylon or aluminum.

[0025] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0026] The positioning device for laser coding of the hub can ensure radial accuracy during coding, and the inner wheel lip of the hub abuts against the base plate, thereby ensuring stable positioning of the hub and effectively improving coding consistency and aesthetics.

[0027] The height of the positioning core can be flexibly adjusted along the axial direction through the supporting adjusting piece, different sizes of hubs can be adapted, different specifications of hubs can be processed in batch production, and the universality of the device is significantly improved.

[0028] The locking device is provided, the base plate can be conveniently and easily unlocked by pulling the pull buckle, the base plate can be freely rotated, the convenience of operation is improved, and the time cost of adjustment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to make the content of the utility model more easily understood, the utility model will be further described in detail in combination with the drawings according to specific embodiments of the utility model.

[0030] Figure 1 It is the overall structure schematic view of the positioning device for laser coding of the hub of the utility model.

[0031] Figure 2 It is Figure 1 the local enlarged structure schematic view.

[0032] Figure 3 It is the structure schematic view of the hub.

[0033] EXPLANATION OF THE DRAWINGS:

[0034] 100, hub; 110, outer edge; 120, flange; 130, spoke; 140, window; 150, bolt hole; 160, hub center hole; 170, inner wheel lip;

[0035] 200, four-axis laser emitter; 210, laser head;

[0036] 1, base; 11, locking column; 111, groove;

[0037] 2, base panel; 21, tapered slot;

[0038] 3, support rod; 31, protective cap;

[0039] 4, support adjustment member;

[0040] 5, positioning core; 51, positioning cone; 52, first spring;

[0041] 6, telescopic positioning device; 61, positioning rod; 62, threaded sleeve; 63, moving seat; 64, sliding groove; 65, adjusting screw;

[0042] 7, planar bearing;

[0043] 8, locking device; 81, locking nut; 82, second spring; 83, locking screw; 831, threaded section; 832, sliding section; 84, locking head; 841, trapezoidal part; 842, positioning column; 85, spring base; 851, counterbore; 86, pull buckle. DETAILED DESCRIPTION

[0044] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0045] In the utility model, if the direction (up, down, left, right, front and back) is described, it is only for the convenience of describing the technical scheme of the utility model, and is not indicated or implied that the indicated technical features must have a specific orientation, structure and operation, therefore, it cannot be understood as the limitation of the utility model.

[0046] In the utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "more than" and the like are not included in the number; "above", "below", "within" and the like are included in the number. In the description of the utility model, if "first" and "second" are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0047] In the utility model, unless otherwise explicitly limited, the words such as ''set'', ''install'' and ''connect'' should be understood in a broad sense, for example, can be directly connected, can also be indirectly connected through an intermediate medium, can be fixedly connected, can also be detachably connected, can also be integrally formed, can be mechanically connected, can also be electrically connected or can communicate with each other, can be the communication or interaction relationship between two elements inside. The person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0048] Referring to Figure 1 , Figure 3 The utility model discloses a positioning device for wheel hub laser code, the wheel hub 100 includes external edge 110, flange 120, the spoke 130 of connecting the flange 120 with the external edge 110, be provided with the window 140 on the spoke 130, along the flange 120 center axis of the wheel hub 100 circumferentially distributed with a plurality of bolt holes 150, is equipped with wheel hub center hole 160 in the center of a plurality of the bolt hole 150, comprising:

[0049] Base 1;

[0050] Base panel 2, rotatably connected to the base 1 around its own axis, the base panel 2 can be supported to the inner wheel lip 170 of the wheel hub 100;

[0051] Supporting rod 3 is connected to the center of the base panel 2;

[0052] Supporting adjusting part 4 is axially adjustably connected to the supporting rod 3;

[0053] Positioning core 5 is sleeved on the supporting rod 3 and is axially adjustably connected to the supporting adjusting part 4, the outer ring surface of the positioning core 5 is provided with a positioning conical surface 51, part of the positioning core 5 can extend into the wheel hub center hole 160 and make the positioning conical surface 51 and the interface between the inner wall and the bottom surface of the wheel hub center hole 160 contact;

[0054] Telescopic positioning device 6 is adjustably installed on the base panel 2, and the telescopic positioning device 6 includes a positioning rod 61 that can be telescopic in the direction perpendicular to the surface of the base panel 2, and the positioning rod 61 can extend out of the window 140 on the spoke 130.

[0055] In an embodiment, in order to facilitate the installation of the supporting rod 3, the supporting rod 3 adopts a (full tooth) threaded rod, the supporting rod 3 is threadedly connected to the center of the base panel 2, and the top end of the supporting rod 3 is provided with a protective cap 31 to prevent scratching the surface of the wheel hub 100.

[0056] In one embodiment, in order to facilitate the vertical adjustment of the support adjusting member 4 along the support rod 3, the support adjusting member 4 comprises at least one adjusting nut screwed to the support rod 3. Through the support adjusting member 4, the height of the positioning core 5 can be flexibly adjusted along the axial direction, which is suitable for different sizes of the hub 100 and can handle different specifications of the hub 100 in batch production, thereby significantly improving the versatility of the device.

[0057] In one embodiment, in order to facilitate the arbitrary rotation of the base panel 2, a planar bearing 7 is arranged between the middle part of the base 1 and the middle part of the base panel 2.

[0058] In one embodiment, in order to facilitate the floating of the positioning core 5, a first spring 52 is arranged between the positioning core 5 and the support adjusting member 4, and the first spring 52 is arranged around the support rod 3 and is used to provide a force for the positioning core 5 to move away from the support adjusting member 4. A first spring is arranged between the support adjusting member 4 and the positioning core 5, which provides a proper floating adjustment function and ensures the stable contact of the positioning core 5 with the central hole 160 of the hub. The elastic support structure further ensures the stability during the coding process and reduces the positioning problem caused by the slight size difference of the hub 100.

[0059] In one embodiment, in order to facilitate the extension and retraction of the positioning rod 61, the telescopic positioning device 6 comprises a moving seat 63 and a threaded sleeve 62 mounted on the moving seat 63, and the positioning rod 61 is screwed into the threaded sleeve 62. The positioning rod 61 extends out of the window 140 on the spoke 130, which avoids the deviation or rotation of the hub 100 during the coding process and improves the coding accuracy.

[0060] In one embodiment, the moving seat 63 is provided with a sliding groove 64, and an adjusting screw 65 is arranged between the sliding groove 64 and the base panel 2. The moving seat 63 can be adjusted by 360° rotation and linearly, which is suitable for different specifications of the hub 100.

[0061] In one embodiment, referring to Figure 2 As shown in the figure, the base 1 comprises a locking column 11, and a locking device 8 is arranged between the locking column 11 and the circumferential side of the base panel 2. The circumferential side of the base panel 2 is provided with a ring-shaped distribution of conical grooves 21.

[0062] The locking device 8 comprises a locking nut 81, a second spring 82, a locking screw 83, a locking head 84, and a spring base 85.

[0063] The locking column 11 is provided with a groove 111, one end of the spring base 85 is provided with a counterbore 851, the locking head 84 includes a trapezoidal part 841 matched with the taper groove 21 through a taper surface and a positioning column 842 inserted into the counterbore 851, and the other end of the spring base 85 abuts against the locking head 84;

[0064] The second spring 82 is arranged in the groove 111 and abuts against the other end of the spring base 85 and the bottom wall of the groove 111, and the second spring 82 can provide a force for the trapezoidal part 841 to tightly abut against the taper surface of the taper groove 21.

[0065] The locking screw 83 includes a threaded segment 831 and a sliding segment 832, the sliding segment 832 extends into the groove 111 from the side wall of the locking column 11 and is connected with the spring base 85, and the locking nut 81 is threadedly connected with the threaded segment 831 and abuts against the side wall of the locking column 11.

[0066] In an embodiment, a puller 86 is further hung on the threaded segment 831. By pulling the puller 86, the base plate 2 is no longer locked and can be rotated.

[0067] In an embodiment, the material of the positioning core 5 is nylon or aluminum. Nylon and aluminum have moderate hardness. Nylon is a material with good toughness and wear resistance, which can effectively avoid scratches during contact. Aluminum material can also reduce the damage of friction to the surface of the hub 100 due to its light weight and moderate texture.

[0068] Working principle: first, place the hub 100 on the positioning device, compress the first spring 52 by the weight of the hub 100, the taper surface of the positioning core 5 gradually contacts the junction between the inner wall and the bottom surface of the hub center hole 160, the positioning core 5 can float and adjust to adapt to the slight size difference of the hub center hole 160, to ensure high-precision radial positioning, at the same time, adjust the height of the positioning core 5 through the support adjusting part 4, so that the inner lip 170 of the hub 100 is attached to the base plate 2, the positioning rod 61 extends out of the window 140 on the spoke 130, to avoid the hub 100 from shifting or rotating during the coding process, and to improve the coding accuracy.

[0069] After adjustment, the locking device 8 makes the trapezoidal locking head 84 tightly abut on the taper groove of the base plate 2 through the spring force, to fix the base plate 2 at the preset position. At this time, the base plate 2 can remain stable and is not affected by external interference.

[0070] When the hub 100 is precisely positioned, the laser head 210 of the four-axis laser transmitter 200 installed on one side is used to perform laser coding on the surface of the flange 120 or other designated positions (such as the rim or spoke 130) of the hub 100. Since the positioning device can stabilize the position of the hub 100 and ensure the precise rotation angle, the error in the coding process is extremely small, ensuring the precision of the coding position and the aesthetic degree of the coding effect.

[0071] After the coding is completed, the operator only needs to pull the pull buckle 86 of the locking device 8 to release the locking state of the base panel 2, and the base panel 2 can be rotated or adjusted again to prepare for the next operation.

[0072] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A positioning device for laser coding of a wheel hub (100), the wheel hub (100) comprising an outer edge (110), a flange (120), spokes (130) connecting the flange (120) and the outer edge (110), the spokes (130) being provided with windows (140), a plurality of bolt holes (150) being distributed circumferentially along a central axis of the flange (120) of the wheel hub (100), a wheel hub center hole (160) being provided in the center of the plurality of bolt holes (150), characterized in that, The application relates to a wheel hub positioning device, which comprises the following parts: a base (1); a base panel (2) rotatably connected to the base (1) around an axis of the base panel (2), the base panel (2) being capable of being supported on an inner lip (170) of the wheel hub (100); a support rod (3) connected to the center of the base panel (2); a support adjusting part (4) axially adjustably connected to the support rod (3); a positioning core (5) sleeved on the support rod (3) and axially floatably connected to the support adjusting part (4), the outer annular surface of the positioning core (5) being provided with a positioning conical surface (51), part of the positioning core (5) being capable of extending into the center hole (160) of the wheel hub and making the positioning conical surface (51) contact the intersection between the inner wall and the bottom surface of the center hole (160) of the wheel hub; a telescopic positioning device (6) adjustably installed on the base panel (2), the telescopic positioning device (6) comprising a positioning rod (61) capable of being telescopically extended in a direction perpendicular to the surface of the base panel (2), the positioning rod (61) being capable of extending out of a window (140) on the spoke (130).

2. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, The support rod (3) is a threaded rod, and the support rod (3) is threadedly connected to the center of the base panel (2).

3. The positioning device for laser marking of wheel hubs according to claim 2, characterized in that, The support adjusting part (4) comprises at least one adjusting nut threadedly connected to the support rod (3).

4. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, A plane bearing (7) is arranged between the middle part of the base (1) and the middle part of the base panel (2).

5. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, A first spring (52) sleeved on the support rod (3) is arranged between the positioning core (5) and the support adjusting part (4), and the first spring (52) is used for providing a force for separating the positioning core (5) from the support adjusting part (4).

6. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, The telescopic positioning device (6) comprises a moving seat (63) and a threaded sleeve (62) installed on the moving seat (63), and the positioning rod (61) is threadedly connected in the threaded sleeve (62).

7. The positioning device for laser marking of wheel hubs according to claim 6, characterized in that, The moving seat (63) is provided with a sliding groove (64), and an adjusting screw (65) is arranged between the sliding groove (64) and the base panel (2).

8. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, The base (1) comprises a locking column (11), a locking device (8) is arranged between the locking column (11) and the circumferential side of the base panel (2), and the circumferential side of the base panel (2) is provided with annularly distributed conical grooves (21); The locking device (8) comprises a locking nut (81), a second spring (82), a locking screw (83), a locking head (84) and a spring base (85); The locking column (11) is provided with a groove (111), one end of the spring base (85) is provided with a counterbore (851), the locking head (84) comprises a trapezoidal part (841) matched with the conical grooves (21) through a conical surface and a positioning column (842) inserted into the counterbore (851), and one end of the spring base (85) abuts against the locking head (84). The second spring (82) is arranged in the groove (111) and abuts against the other end of the spring base (85) and the bottom wall of the groove (111) respectively, and the second spring (82) can provide a force for the trapezoidal part (841) to tightly abut against the tapered surface of the tapered groove (21). The locking screw (83) comprises a threaded segment (831) and a sliding segment (832), the sliding segment (832) extends into the groove (111) from the side wall of the locking column (11) and is connected with the spring base (85), and the locking nut (81) is threadedly connected with the threaded segment (831) and abuts against the side wall of the locking column (11).

9. The positioning device for laser coding of wheel hubs according to claim 8, characterized in that, A pull buckle (86) is further arranged on the threaded segment (831).

10. The positioning device for laser marking of wheel hubs according to claim 1, characterized in that, The material of the positioning core (5) is nylon or aluminum.

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