Hub machining positioning block and positioning tool

Abstract

The utility model discloses a hub machining positioning block, an expansion assembly on the upper surface of the positioning block comprises petal blocks, a center rod, an expansion shaft and a nut, at least two petal blocks are symmetrically arranged and slidably installed in a slide way on the upper surface of the positioning block, the center rod is vertically installed on the upper surface of the positioning block, and the center rod is located in the middle of the petal blocks; the center rod is sleeved with the expansion shaft, the nut is installed on the threaded section of the center rod in a threaded mode, and the nut downwards presses the expansion shaft to enable the outer sides of the petal blocks to abut against the inner circumferential face of the hub. The positioning block can quickly position the position of the hub and clamp the hub, the clamping time of the hub is greatly saved, time and labor are saved, the expansion assembly can abut against the inner circumference of the hub, the clamping range is adjustable, and the hub clamping tool can better adapt to hub clamping tools of various sizes. The positioning tool can quickly abut against the peripheral side of the positioning block through the air cylinder and the clamping plate, and positioning and clamping of the hub in the machining process are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hub machining tooling, in particular to a hub machining positioning block and a positioning tooling. Background Art

[0002] Wheel hub machining projects include: wheel hub periphery, inner cavity, processing wheel hub screw holes, airtightness holes, air nozzle holes, etc., and now, in order to improve the aesthetics of the wheel hub, the outer end surface of the wheel hub is also subjected to wire drawing. Regardless of the machining project, the wheel hub needs to be fixed to the machining equipment. Currently, the wheel hub can be clamped by a chuck on the lathe, but there is a lack of wheel hub clamping tooling on CNC machine tools. Generally, the pressure block and bolts are installed on the table of the CNC machine tool to clamp the wheel hub. This clamping method is slow to disassemble and assemble and the workload of workers is large. In addition, the lack of positioning function is also the main factor leading to slow clamping speed during the wheel hub clamping process. Utility Model Content

[0003] The purpose of the utility model is to provide a wheel hub processing positioning block and positioning tooling to solve the problems of lack of wheel hub clamping tooling on CNC machine tools, slow disassembly and assembly speed and heavy workload of workers in traditional clamping methods, and lack of positioning function.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A wheel hub processing positioning block, the upper surface of the positioning block is provided with a tightening assembly, the tightening assembly includes a petal block, a center rod, an expansion shaft and a nut, at least two of the petal blocks are symmetrically arranged and slidably installed in the slideway on the upper surface of the positioning block, the center rod is vertically installed on the upper surface of the positioning block, and the center rod is located in the middle of the petal block, the expansion shaft is sleeved on the center rod, the nut is threadedly installed on the threaded section of the center rod, and the nut presses down the tightening shaft to tighten the outer side of the petal block to the inner circumference of the wheel hub.

[0006] A further technical solution is that the outer circumference of the petal block is an arc-shaped surface that matches the inner circumference of the hub.

[0007] A further technical solution is: a wedge-shaped surface is provided on the inner side of the petal block from top to bottom, which gradually approaches the expansion shaft; the expansion shaft is a truncated cone with a larger upper portion and a smaller lower portion; and the outer side of the expansion shaft is adapted to the wedge-shaped surface of the petal block.

[0008] A further technical solution is that threaded holes are evenly arranged on the upper surface of the positioning block.

[0009] A positioning tool for wheel hub processing includes a positioning block, the outer circumference of which is evenly provided with cylinders distributed in a triangular shape, a clamping plate is installed on the power output end of the cylinder, the clamping plate is slidably connected to the processing equipment, and the outer end of the clamping plate is pressed against the outer circumference of the positioning block.

[0010] A further technical solution is that three planes adapted to the clamping plate are provided on the outer peripheral side of the positioning block.

[0011] A further technical solution is that the outer end of the clamping plate is provided with a notch adapted to the outer peripheral side of the positioning block.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] The utility model proposes a wheel hub processing positioning block and positioning tooling, which can quickly locate the wheel hub position and clamp the wheel hub, greatly saving the clamping time of the wheel hub, saving time and effort, and the expansion assembly can use the petal block, center rod, expansion shaft and nut to cooperate with each other, and can tighten from the inner circumference of the wheel hub. The clamping range is adjustable, which can better adapt to wheel hub clamping tooling of various sizes.

[0014] In addition, the positioning tool can quickly press against the outer peripheral side of the positioning block using the cylinder and the clamping plate, further improving the positioning and clamping tooling of the wheel hub during machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a structural schematic diagram of a wheel hub processing positioning block and positioning tooling.

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the positioning block.

[0017] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the middle expansion shaft.

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the middle splint.

[0019] Figure numerals: 1, positioning block; 2, petal block; 3, center rod; 4, expansion shaft; 5, nut; 6, wheel hub; 7, cylinder; 8, splint. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example 1:

[0027] This embodiment Figure 1 、 Figure 2 and Figure 3 As shown, a hub processing positioning block is provided with a tightening assembly on the upper surface of the positioning block 1, and the tightening assembly includes a petal block 2, a center rod 3, an expansion shaft 4 and a nut 5. At least two petal blocks 2 are symmetrically arranged and slidably installed in the slideway on the upper surface of the positioning block 1, the center rod 3 is vertically installed on the upper surface of the positioning block 1, and the center rod 3 is located in the middle of the petal block 2, the expansion shaft 4 is sleeved on the center rod 3, the nut 5 is threadedly installed on the threaded section of the center rod 3, and the nut 5 presses down the expansion shaft 4 to tighten the outer side of the petal block 2 to the inner circumference of the wheel hub 6.

[0028] Place the wheel hub 6 on the positioning block 1. At this time, make sure that all the petal blocks 2 (three are the best) should be in the wheel hole of the wheel hub 6. Then put the tightening shaft 4 on the center rod 3, and screw the nut 5 on the upper end of the center rod 3. The nut 5 presses the tightening shaft 4 downward. The outer peripheral side of the tightening shaft 4 presses against the petal block 2, and the petal block 2 presses against the wheel hole of the wheel hub 6, thereby fixing the wheel hub 6.

[0029] It is worth noting that the wheel hub 6 does not need to be placed accurately when clamping. The process of the expansion assembly pressing against the wheel hub 6 is also a process of positioning the wheel hub 6.

[0030] Preferably, the outer circumference of the petal block 2 is an arc-shaped shape that matches the inner circumference of the hub 6 .

[0031] The outer circumference of the petal block 2 can better adapt to the inner circumference of the hub 6 to prevent the hub from being squeezed and damaged.

[0032] Preferably, the inner side of the petal block 2 is provided with a wedge-shaped surface gradually approaching the expansion shaft 4 from top to bottom. The expansion shaft 4 is a frustum with a larger upper portion and a smaller lower portion. The outer side of the expansion shaft 4 is adapted to the wedge-shaped surface of the petal block 2 .

[0033] The petal block 2 and the expansion shaft 4 are arranged in a conical matching structure with a larger upper portion and a smaller lower portion, which can better move the petal block 2.

[0034] The expansion shaft 4 can be a frustum or a polygonal pyramid.

[0035] Preferably, threaded holes are evenly arranged on the upper surface of the positioning block 1 .

[0036] The positioning block 1 is fixed to the machining equipment through the threaded holes and bolts adapted to the threaded holes.

[0037] Example 2:

[0038] Based on the above embodiments, this embodiment Figure 1 and Figure 4As shown, a positioning tool for wheel hub processing includes a positioning block, and cylinders 7 are evenly arranged on the outer periphery of the positioning block in a triangular distribution. A clamping plate 8 is installed on the power output end of the cylinder 7. The clamping plate 8 is slidably connected to the processing equipment, and the outer end of the clamping plate 8 is pressed against the outer peripheral side of the positioning block.

[0039] The positioning block 1 can be quickly clamped by using the cylinder 7 and the clamping plate 8, avoiding the use of threaded holes and bolts to fix the positioning block 1 on the machining equipment.

[0040] Preferably, three flat surfaces adapted to the clamping plate 8 are provided on the outer circumference of the positioning block.

[0041] The circular positioning block is prevented from axial rotation, so that the clamping plate 8 can better clamp the positioning block 1.

[0042] Preferably, the outer end of the clamping plate 8 is provided with a notch adapted to the outer peripheral side of the positioning block 1 .

[0043] The notch of the splint 8 can press the positioning block 1 downward.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel hub machining positioning block, characterized by: The upper surface of the positioning block (1) is provided with an expansion assembly, which includes a petal block (2), a center rod (3), an expansion shaft (4) and a nut (5). At least two of the petal blocks (2) are symmetrically arranged and slidably installed in a slideway on the upper surface of the positioning block (1). The center rod (3) is vertically installed on the upper surface of the positioning block (1), and the center rod (3) is located in the middle of the petal block (2). The expansion shaft (4) is sleeved on the center rod (3). The nut (5) is threadedly installed on the threaded section of the center rod (3), and the nut (5) presses down the expansion shaft (4) to press the outer side of the petal block (2) against the inner circumference of the hub (6).

2. The wheel hub machining positioning block according to claim 1, characterized in that: The outer circumference of the petal block (2) is in an arc shape that matches the inner circumference of the hub (6).

3. The wheel hub machining positioning block according to claim 1, characterized in that: The inner side of the petal block (2) is provided with a wedge-shaped surface gradually approaching the expansion shaft (4) from top to bottom. The expansion shaft (4) is in the shape of a truncated cone with a larger upper portion and a smaller lower portion. The outer side of the expansion shaft (4) is adapted to the wedge-shaped surface of the petal block (2).

4. The wheel hub machining positioning block according to claim 1, characterized in that: The upper surface of the positioning block (1) is evenly provided with threaded holes.

5. The wheel hub machining positioning block according to claim 1, characterized in that: The outer periphery of the positioning block (1) is evenly provided with triangularly distributed cylinders (7), and a clamping plate (8) is installed on the power output end of the cylinder (7). The clamping plate (8) is slidably connected to the processing equipment, and the outer end of the clamping plate (8) is pressed against the outer periphery of the positioning block.

6. The wheel hub machining positioning block according to claim 5, characterized in that: Three planes adapted to the clamping plate (8) are provided on the outer peripheral side of the positioning block.

7. The wheel hub machining positioning block according to claim 5, characterized in that: The outer end of the clamping plate (8) is provided with a notch adapted to the outer peripheral side of the positioning block (1).

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