Wheel hub grinding equipment

Abstract

The present invention discloses a wheel hub grinding device, which belongs to the technical field of wheel hub grinding, and includes a main shaft, and a connecting disk is fixed at the end of the main shaft; the lower surface of the connecting disk is symmetrically rotatably connected to two rotating blocks, and a plurality of brackets are connected to the two rotating blocks through a connecting rod, and the outer arc surface of each bracket is provided with brush wires; the present invention realizes the conversion from comprehensive annular grinding to precise sector-shaped grinding through a double rotating block structure, thereby improving the efficiency and effect of wheel hub grinding. In the annular grinding mode, the rotating blocks enclose a complete annular brush wire array, ensuring comprehensive and uniform grinding of the wheel hub surface, and meeting general maintenance needs. When it is necessary to target a specific area of ​​the wheel hub, the rotating blocks can be synchronously adjusted to the sector mode, and the brush wires form a compact sector-shaped layout, and the hemispherical grinding path generated by the rotation can accurately cover and penetrate these hard-to-reach areas.

Description

Technical Field

[0001] The invention relates to a wheel hub grinding device, belonging to the technical field of wheel hub grinding. Background Art

[0002] In the wheel hub manufacturing and maintenance industry, traditional grinding tools and methods often face many challenges. On the one hand, comprehensive and uniform annular grinding is essential to maintain the smoothness and consistency of the hub surface, but traditional tools often find it difficult to achieve high-quality comprehensive coverage while ensuring efficiency, especially for large or complex hubs. On the other hand, when the hub surface is locally uneven or specific areas (such as spoke gaps) need to be finely processed, it is difficult for traditional grinding methods to accurately control the grinding range and depth, resulting in low efficiency and poor results. In addition, during the long-term use of traditional grinding tools, debris is easily accumulated in the brush wire, affecting the grinding quality and brush wire life, and cleaning these debris often requires additional steps and time, increasing maintenance costs and operational complexity. Summary of the invention

[0003] The object of the present invention is to provide a wheel hub grinding device to solve the problems raised in the above background technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: a wheel hub grinding device, comprising:

[0005] A rotatable main shaft, with a connecting disc fixed to the end of the main shaft;

[0006] Two rotating blocks, the two rotating blocks are symmetrically rotatably connected to the lower surface of the connecting disk;

[0007] Multiple brackets, both ends of which are provided with connecting rods for connecting the rotating blocks, the multiple brackets are in a C shape, and the outer arc surface of each bracket is provided with a brush wire;

[0008] When the two rotating blocks rotate to fit the lower surface of the connecting plate, the multiple brackets on the two rotating blocks form a ring body, and the brush wires on the multiple brackets are in a ring shape;

[0009] When the two rotating blocks rotate to a state perpendicular to the connecting disk, the multiple brackets on the two rotating blocks are assembled into a fan body, and at this time, the brush wires on the multiple brackets are in a fan shape.

[0010] Preferably, it also includes a driving mechanism, the driving mechanism comprising:

[0011] A slider, the slider is arranged on the main shaft, and the slider slides along the axis direction of the main shaft;

[0012] Two push-pull rods, which are symmetrically arranged on both sides of the lower surface of the slider, the upper ends of the push-pull rods are hinged on the lower surface of the slider, and the lower ends of the push-pull rods are hinged on the side wall of the rotating block on the same side;

[0013] When the slider slides downward, the two push-pull rods push the rotating block on the same side downward to rotate;

[0014] When the slide block slides upward, the two push-pull rods pull the rotating block on the same side upward to rotate.

[0015] Preferably, the driving mechanism further comprises:

[0016] A sliding sleeve, wherein the sliding sleeve is sleeved on the main shaft, the lower end of the sliding sleeve is fixedly connected to the slider, and a ring groove is provided on the side wall of the sliding sleeve;

[0017] An electric push rod, wherein the output shaft of the electric push rod is parallel to the main shaft, a shift fork is fixed to the end of the output shaft of the electric push rod, and the shift fork is inserted in the ring groove.

[0018] Preferably, the push-pull rod is a telescopic rod, and on the two rotating blocks, the bracket closest to the rotating shaft of the rotating block is fixed to the corresponding rotating block through a connecting rod, and the remaining brackets are rotatably connected through the connecting rod;

[0019] A plurality of pressure rods are fixed on the slider, and a plurality of tooth plates are arranged at the lower ends of the plurality of pressure rods. The plurality of tooth plates are meshed with a plurality of connecting rods rotatably connected to the rotating block one by one, and a slot for inserting the tooth plates is provided on the side wall of the rotating block;

[0020] Among them, the teeth of multiple tooth plates on the same pressure rod are distributed in a height that gradually extends downward from the inside to the outside.

[0021] Preferably, the push-pull rod comprises:

[0022] a first rod, the upper end of which is hinged to the lower surface of the slider,

[0023] A second rod, the lower end of which is hinged to the side wall of the rotating block, and the upper end of which is slidably inserted into the interior of the first rod;

[0024] The end block is slidably connected to the inside of the first rod and fixed to the inside of the second rod. A spring for pressing the end block downward is arranged inside the first rod.

[0025] Preferably, a pressing block is also fixed on the side wall of the connecting plate.

[0026] Preferably, a through long groove is provided on the side wall of the main shaft, and a horizontal block sliding in the long groove is fixed on the sliding block.

[0027] Preferably, the brush filaments are made of steel wire brush.

[0028] Compared with existing technologies:

[0029] The present invention realizes the conversion from comprehensive annular grinding to precise sector-shaped grinding through the dual rotating block structure, thereby improving the efficiency and effect of wheel hub grinding. In the annular grinding mode, the rotating blocks enclose a complete annular brush array, ensuring comprehensive and uniform grinding of the wheel hub surface and meeting general maintenance needs. When it is necessary to perform fine processing on specific areas of the wheel hub, such as spoke gaps or local unevenness, the rotating blocks can be synchronously adjusted to the sector-shaped mode, and the brushes form a compact sector-shaped layout. The hemispherical grinding path generated by the rotation can accurately cover and penetrate these hard-to-reach areas, effectively solving the problem of local grinding. It not only improves the flexibility of the grinding operation, but also greatly saves time and labor costs.

[0030] The present invention controls the deployment of multiple brackets through the linkage mechanism of the tooth plate and the slot, which not only greatly enhances the pertinence and efficiency of local grinding, but also effectively promotes the natural shedding of debris by increasing the brush wire interval, improves the self-cleaning ability of the brush wire, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the brush filaments of the present invention when they are in a ring shape.

[0032] Figure 2 It is a schematic diagram of the structure of the main shaft, rotating block and bracket of the present invention (the bracket on one rotating block is hidden).

[0033] Figure 3 It is a schematic structural diagram of the brush filaments of the present invention when they are in a fan shape.

[0034] Figure 4 It is an exploded view of the main shaft and the rotating block of the present invention.

[0035] Figure 5 It is an exploded view of the rotating block, bracket, sliding block and push-pull rod of the present invention.

[0036] Figure 6 It is a structural schematic diagram of the bracket, connecting rod, pressure rod and tooth plate of the present invention.

[0037] Figure 7 It is a side view of the brush filaments of the present invention when they are in a fan shape.

[0038] Figure 8 It is a cross-sectional view of the main shaft, rotating block, sliding block and push-pull rod of the present invention.

[0039] Fig. 9 It is a cross-sectional exploded view of the main shaft, rotating block, sliding block and push-pull rod of the present invention.

[0040] Fig.10 It is a schematic diagram of the structure of the slider, the sliding sleeve and the shift fork of the present invention.

[0041] Fig.11 It is a cross-sectional view of the first rod and the second rod of the present invention.

[0042] In the figure:

[0043] 1. spindle, 101. connecting plate, 102. long slot;

[0044] 2. Rotating block, 201, slot;

[0045] 3. Bracket, 301, connecting rod;

[0046] 4. Driving mechanism, 401, slider;

[0047] 402, push-pull rod, 4021, first rod, 4022, second rod, 4023, end block, 4024, spring;

[0048] 403, sliding sleeve, 4031, ring groove;

[0049] 404, electric push rod, 405, shift fork;

[0050] 5. Working end of the robotic arm;

[0051] 6. Pressure block, 7. Pressure rod, 8. Tooth plate. DETAILED DESCRIPTION

[0052] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0053] Embodiment 1

[0054] like Figure 1-Figure 10 As shown, in this embodiment, a wheel hub grinding device is provided, including a rotatable main shaft 1, one end of the main shaft 1 is connected to the working end 5 of the robot arm, and a motor for driving the main shaft 1 to rotate is also installed on the working end 5 of the robot arm, and a connecting disk 101 is fixed to the end of the main shaft 1; the lower surface of the connecting disk 101 is symmetrically rotatably connected to two rotating blocks 2; the two rotating blocks 2 are connected to a plurality of brackets 3 through connecting rods 301, each bracket 3 corresponds to two connecting rods 301, and the axes of the two connecting rods 301 on the same bracket 3 coincide, and the plurality of brackets 3 are C-shaped, and a brush wire is provided on the outer arc surface of each bracket 3, and the material of the brush wire is a wire brush.

[0055] Working principle:

[0056] Annular grinding mode: When the wheel hub needs to be fully polished in an annular or circumferential manner, the two rotating blocks 2 rotate to fit the lower surface of the connecting plate 101, and the multiple brackets 3 on the two rotating blocks 2 form a ring body, and the brush wires on the two rotating blocks 2 will form a complete ring-shaped array (such as Figure 1 At this time, the main shaft 1 rotates to drive the connecting disc 101 and the two rotating blocks 2 (and the brush wires thereon) to rotate together, thereby achieving comprehensive annular grinding of the wheel hub.

[0057] Sector grinding mode: If a specific area of ​​the hub (such as the spoke gap or local unevenness) needs to be focused on grinding, the two rotating blocks 2 rotate downward synchronously, and the two rotating blocks 2 will eventually fit together. At this time, the two rotating blocks 2 are vertically connected to the disk 101. In this state, the two rotating blocks 2 will fit together, and their brush wires will form a sector shape (such as Figure 2 As shown). The main shaft 1 rotates to drive the connecting disk 101 and the two rotating blocks 2 (and the brush wires thereon) to rotate together, and the path swept by the fan-shaped brush wires is hemispherical, so as to achieve targeted local grinding.

[0058] In order to drive the two rotating blocks 2 to rotate on the connecting disk 101, so as to realize the switching of the brush wire between the ring shape and the fan shape, a driving mechanism 4 is also included, which includes a slider 401, and the slider 401 is arranged on the main shaft 1. An electric push rod 404 is installed on the working end 5 of the robot arm. The output shaft of the electric push rod 404 is parallel to the main shaft 1, and a shift fork 405 is fixed to the end of the output shaft of the electric push rod 404. A sliding sleeve 403 is sleeved on the main shaft 1 and located above the slider 401. The lower end of the sliding sleeve 403 is fixedly connected to the slider 401. An annular groove 4031 is provided on the side wall of the sliding sleeve 403, and the shift fork 405 is inserted into the annular groove 4031. When the electric push rod 404 is started, the electric push rod 404 drives the shift fork 405 to move, and the shift fork 405 can drive the slider 401 and the sliding sleeve 403 to slide on the main shaft 1 through the annular groove 4031. The sliding direction of the slider 401 is along the axial direction of the main shaft 1. Figure 8-Figure 9 As shown, a through long groove 102 is opened on the side wall of the main shaft 1, and a horizontal block 4011 sliding in the long groove 102 is fixed on the slider 401, so that the slider 401 rotates synchronously with the main shaft 1; two push-pull rods 402 are symmetrically arranged on both sides of the lower surface of the slider 401, and the upper ends of the push-pull rods 402 are hinged on the lower surface of the slider 401, and the lower ends of the push-pull rods 402 are hinged on the side wall of the rotating block 2 on the same side; when the slider 401 slides downward, the two push-pull rods 402 push the rotating block 2 on the same side downward to rotate; when the slider 401 slides upward, the two push-pull rods 402 pull the rotating block 2 on the same side upward to rotate, thereby realizing the free switching of the brush filaments between the ring shape and the fan shape.

[0059] Embodiment 2

[0060] like Figure 5-Figure 7 As shown, on the basis of the above embodiment, in order to open multiple brackets 3 at different angles so as to unfold the brush wires on adjacent brackets 3, the push-pull rod 402 is a telescopic rod, and on the two rotating blocks 2, the bracket 3 closest to the rotating shaft of the rotating block 2 is fixed to the corresponding rotating block 2 through the connecting rod 301, and the remaining brackets 3 are rotatably connected through the connecting rod 301; multiple pressure rods 7 are fixed on the slider 401, and multiple tooth plates 8 are arranged at the lower ends of the multiple pressure rods 7. The multiple tooth plates 8 are meshed with the multiple connecting rods 301 rotatably connected to the rotating block 2 one by one, and the side wall of the rotating block 2 is provided with a slot 201 for the tooth plate 8 to be inserted. Among them, the tooth distribution height of the multiple tooth plates 8 on the same pressure rod 7 gradually extends downward from the inside to the outside.

[0061] like Figure 6 As shown, when the slider 401 moves downward with the pressure rod 7, the teeth of the outermost tooth plate 8 first mesh with the corresponding connecting rod 301, and the connecting rod 301 is driven to rotate by the tooth plate 8, and the outermost bracket 3 rotates first. As the pressure rod 7 moves downward, the teeth of the tooth plate 8 from the outside to the inside are meshed with the corresponding connecting rod 301 in turn, causing multiple brackets 3 to open at different angles, thereby realizing the bracket 3 being unfolded to the following angles: Figure 7 Status shown.

[0062] Embodiment 3

[0063] like Fig.11 As shown, on the basis of the second embodiment, in order to realize the extension and retraction of the push-pull rod 402, the push-pull rod 402 includes a first rod 4021 and a second rod 4022, the upper end of the first rod 4021 is hinged to the lower surface of the slider 401, the lower end of the second rod 4022 is hinged to the side wall of the rotating block 2, and the upper end of the second rod 4022 is slidably inserted into the interior of the first rod 4021; the interior of the first rod 4021 is slidably connected with an end block 4023, and the end block 4023 is fixed to the interior of the second rod 4022, the end block 4023 is used to limit the upper end of the second rod 4022 to the interior of the first rod 4021, and the interior of the first rod 4021 is provided with a spring 4024 for pressing the end block 4023 downward.

[0064] When switching:

[0065] The first switching: the brush wire switches from a ring shape to a fan shape;

[0066] The main shaft 1 stops rotating, and the robot arm moves the main shaft 1 to a vertical state through the robot arm working end 5. The connecting disk 101 is located below the main shaft 1. At this time, the electric push rod 404 is used to push the slider 401 downward, and the rotating block 2 rotates downward. All the brackets 3 are fan-shaped and close together (in order to enable the brackets 3 to rotate and there will be no rotation interference between adjacent brackets 3, gaps are allowed between the brackets 3 to ensure that multiple brackets 3 can be rotated and opened). When the two rotating blocks 2 rotate to the vertical connecting disk 101, the slider 401 continues to move downward. At this time, the slider 401 continues to slide with the pressure rod 7 (the push-pull rod 402 contracts). When the tooth plate 8 at the lower end of the pressure rod 7 is inserted into the slot 201 of the rotating block 2, the tooth plate 8 drives the corresponding connecting rod 301 to rotate, so that the multiple brackets 3 are opened. After the slider 401 stops, the multiple brackets 3 remain Figure 7 The state shown, in this state, the path swept by the brush wire is hemispherical, achieving targeted local grinding.

[0067] In addition, in this state, the intervals between the brush filaments on adjacent brackets 3 are increased, which effectively promotes the natural shedding of debris, improves the self-cleaning ability of the brush filaments, and reduces maintenance costs.

[0068] The second switching: the brush filament switches from fan shape to ring shape;

[0069] The electric push rod 404 pulls the slider 401 upward, and the slider 401 first pulls the tooth plate 8 out of the slot 201, and the push-pull rod 402 starts to move. When the tooth plate 8 is pulled out of the slot 201, the push-pull rod 402 ends its movement and continues to slide the slider 401 upward. At this time, the push-pull rod 402 pulls the rotating block 2 to rotate upward. When the rotating block 2 is attached to the lower surface of the connecting disk 101, the lowest bracket 3 supports the upper bracket 3.

[0070] A pressing block 6 is also fixed on the side wall of the connecting plate 101. Figure 2 As shown, when the rotating block 2 rotates to fit against the lower surface of the connecting disk 101, the pressing block 6 presses the uppermost bracket 3. With the cooperation of the pressing block 6 and the lowermost bracket 3, the remaining brackets 3 can be restrained and fixed, so that the multiple brackets 3 are in a stable ring shape.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wheel hub grinding device, characterized in that: include: A rotatable main shaft (1), a connecting disc (101) being fixed to an end of the main shaft (1); Two rotating blocks (2), the two rotating blocks (2) being symmetrically rotatably connected to the lower surface of the connecting disk (101); A plurality of brackets (3), both ends of the plurality of brackets (3) are provided with connecting rods (301) for connecting to the rotating block (2), the plurality of brackets (3) are in a C shape, and a brush is provided on the outer arc surface of each bracket (3); When the two rotating blocks (2) rotate to fit the lower surface of the connecting disk (101), the multiple brackets (3) on the two rotating blocks (2) form a ring body, and the brush wires on the multiple brackets (3) are in a ring shape; When the two rotating blocks (2) are rotated to a state perpendicular to the connecting disk (101), the multiple brackets (3) on the two rotating blocks (2) are assembled into a fan body, and the brush wires on the multiple brackets (3) are in a fan shape; It also includes a driving mechanism (4), wherein the driving mechanism (4) includes: A slider (401), the slider (401) being arranged on the main shaft (1), and the slider (401) sliding along the axial direction of the main shaft (1); Two push-pull rods (402), the two push-pull rods (402) are symmetrically arranged on both sides of the lower surface of the slider (401), the upper ends of the push-pull rods (402) are hinged on the lower surface of the slider (401), and the lower ends of the push-pull rods (402) are hinged on the side wall of the rotating block (2) on the same side; When the slide block (401) slides downward, the two push-pull rods (402) push the rotating block (2) on the same side downward to rotate; When the slide block (401) slides upward, the two push-pull rods (402) pull the rotating block (2) on the same side upward to rotate; The push-pull rod (402) is a telescopic rod, and on the two rotating blocks (2), the bracket (3) closest to the rotating axis of the rotating block (2) is fixed to the corresponding rotating block (2) through a connecting rod (301), and the remaining brackets (3) are rotatably connected through the connecting rod (301); A plurality of pressure rods (7) are fixed on the slider (401), a plurality of tooth plates (8) are provided at the lower ends of the plurality of pressure rods (7), the plurality of tooth plates (8) are meshed with a plurality of connecting rods (301) rotatably connected to the rotating block (2) in a one-to-one correspondence, and a slot (201) for the tooth plates (8) to be plugged into is provided on the side wall of the rotating block (2); The teeth of the plurality of tooth plates (8) on the same pressure rod (7) are distributed in a height that gradually extends downward from the inside to the outside; When the slider (401) moves the pressure rod (7) downward, the teeth of the outermost tooth plate (8) first mesh with the corresponding connecting rod (301), and the connecting rod (301) is driven to rotate by the tooth plate (8), and the outermost bracket (3) rotates first. As the pressure rod (7) moves downward, the teeth of the tooth plate (8) from the outside to the inside mesh with the corresponding connecting rod (301) in sequence, causing the multiple brackets (3) to open at different angles.

2. A wheel hub grinding device according to claim 1, characterized in that: The driving mechanism (4) further comprises: A sliding sleeve (403), the sliding sleeve (403) being sleeved on the main shaft (1), the lower end of the sliding sleeve (403) being fixedly connected to the sliding block (401), and a ring groove (4031) being provided on the side wall of the sliding sleeve (403); An electric push rod (404), wherein the output shaft of the electric push rod (404) is parallel to the main shaft (1), a shift fork (405) is fixed to the end of the output shaft of the electric push rod (404), and the shift fork (405) is inserted into the annular groove (4031).

3. A wheel hub grinding device according to claim 1, characterized in that: The push-pull rod (402) comprises: a first rod (4021), the upper end of which is hinged to the lower surface of the slider (401); A second rod (4022), the lower end of the second rod (4022) being hinged to the side wall of the rotating block (2), and the upper end of the second rod (4022) being slidably inserted into the interior of the first rod (4021); An end block (4023) is slidably connected to the inside of the first rod (4021), and the end block (4023) is fixed to the inside of the second rod (4022). A spring (4024) is provided inside the first rod (4021) for pressing the end block (4023) downward.

4. A wheel hub grinding device according to claim 3, characterized in that: A pressing block (6) is also fixed on the side wall of the connecting plate (101).

5. The wheel hub grinding device according to claim 1, characterized in that: A through long groove (102) is provided on the side wall of the main shaft (1), and a horizontal block (4011) sliding in the long groove (102) is fixed on the sliding block (401).

6. A wheel hub grinding device according to claim 1, characterized in that: The brush wire is made of a steel wire brush.

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