Honing tool structure for outer circle of special-shaped thin-walled tube

Abstract

The utility model provides a honing tool structure for the outer circle of a special-shaped thin-walled tube, which belongs to the technical field of metal processing equipment and comprises two bases which are oppositely arranged, and the two bases are in threaded connection through two double-thread screws and are limited, adjusted and fixed through pressing sleeves screwed at the end parts. A double-thread screw is arranged between the two bases, the middle of the double-thread screw is sleeved with a compressed spring, clamping grooves are formed in the opposite faces of the two bases in a concave mode, a plurality of conical step layers are arranged on the side walls of the clamping grooves, two oilstone bases which are oppositely arranged are fixed to any step layer, and oilstones used for honing are fixed to the two oilstone bases. The outer circle of the special-shaped pipe is processed by adopting a CBN tool abrasive material, the roughness and the roundness of the special-shaped pipe after the outer circle is processed are ensured, the roundness error of the outer circle and a radial hole is ensured, the processing precision of the outer circle of the special-shaped thin-walled pipe and a soft material is improved, and the error after a polishing process is effectively eliminated. And the tool is simple in structure, convenient to implement and low in cost, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metal processing equipment technical field especially, relate to a special-shaped thin wall pipe external honing tool structure. BACKGROUND

[0002] For the external circle processing of special-shaped thin wall pipe, the currently adopted is external circle grinding machine processing, uses the processing of general abrasive to complete. But this processing mode has the problems of low processing efficiency, low yield, poor roughness, large grinding wheel wear, complex dressing process, poor operability and large processing precision error, and poor use effect. INNOVATION CONTENT

[0003] The utility model discloses a special-shaped thin wall pipe external honing tool structure, including two double -end screws, fixed through two double -end screws, spiral connection in the two base of the external circle of the two ends of double -end screw respectively, the elastic piece of being located at the external circle of double -end screw and being fixed between two base, the pressure cover of being screwed in the end of double -end screw is used for adjusting the distance between two base.

[0004] The opposite face of two base is concave with the clamping groove, and the oil stone for dressing workpiece is arranged in the clamping groove.

[0005] Further, the opposite sides of the clamping groove are provided with symmetrically arranged tapered step grooves, and the oil stone base is matched and clamped in the inside of the tapered step groove.

[0006] Further, the number of tapered step grooves is multiple, and the multiple tapered step grooves are equidistantly arranged on the side wall of the clamping groove.

[0007] Further, each oil stone base is fixed with two oil stones, and the two oil stones are arranged close to the side walls of the clamping groove.

[0008] Each oil stone is provided with a chamfer surface facing the workpiece.

[0009] Further, the elastic member is a compression spring.

[0010] Further, a gasket is arranged between the pressure cover and the base.

[0011] Compared with the prior art, the utility model has the beneficial effects mainly reflected in:

[0012] 1. The utility model adopts CBN tool abrasive to process the external circle of special-shaped pipe, ensures the roughness and roundness after processing the external circle, ensures the roundness error of the external circle and radial hole, improves the processing precision of the external circle of special-shaped thin wall pipe and soft material, and effectively saves the error after polishing process.

[0013] 2. The honing tool mechanism of the utility model is simple to operate, convenient to implement and low in cost. DRAWINGS

[0014] Fig. 1 This is a front view of the structure of an irregularly shaped thin-walled tube honing tool according to the present invention.

[0015] Fig. 2 This is an internal structural diagram of a honing tool for an irregularly shaped thin-walled tube according to the present invention.

[0016] Fig. 3 This is a three-dimensional structural diagram of a honing tool for the outer circle of an irregularly shaped thin-walled tube according to the present invention. Detailed Implementation

[0017] The following is a more detailed description of the structure of an irregular thin-walled tube honing tool according to the present invention, with reference to the schematic diagram, which illustrates the preferred embodiment of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0018] like Figs. 1-3 As shown, a honing tool structure for the outer circle of an irregularly shaped thin-walled tube includes a double-ended screw 2, a base 1, a compression spring 5, a pressure sleeve 4, a washer 3, and an oilstone 7.

[0019] This embodiment of the invention includes two double-headed screws 2, two bases 1, two compression springs 5, four pressure sleeves 4, four washers 3, and four oilstones 7. The specific quantities mentioned above can be set according to actual installation needs and are not specifically required.

[0020] In this embodiment of the invention, each base 1 is fixed by two double-ended screws 2. Specifically, each base 1 has threaded through holes near its sides, and the two bases 1 are threadedly connected to the outer peripheries of the two ends of the double-ended screws 2. Two compression springs 5, acting as elastic elements, are respectively sleeved on the middle of the two double-ended screws 2 and fixed between the two bases 1 at both ends. Four pressure sleeves 4 are screwed onto the ends of the two double-ended screws 2, and washers 3 are provided between them and the bases 1. By screwing the pressure sleeves 4 in conjunction with the compression springs 5, the distance between the two bases 1 can be adjusted.

[0021] The oilstone 7 is set in a recessed groove on the opposite side of the base 1. Specifically, the opposite sides of the groove have conical stepped layers. The number of stepped layers is set according to actual needs and is not limited. In this embodiment, three stepped layers are set, and an oilstone base 6 is clamped in any stepped layer. The oilstone 7 is fixed on the opposite side of the two oilstone bases 6. In this utility model, four oilstones 7 are set. The four oilstones 7 are fixed in pairs on the surface of the two oilstone bases 6. The two oilstones 7 on each oilstone base 6 are respectively fixed on the side walls near the groove. Each oilstone 7 has the same structure and has a chamfered surface. The chamfered surfaces of the four oilstones 7 all face the workpiece being clamped.

[0022] When using the tool structure of this utility model, the distance between the two bases 1 can be adjusted by screwing the pressure sleeve 4, thereby adapting to the size or processing size of different shaped tubes 8. The range of distance that can be adjusted by screwing the pressure sleeve 4 can also be increased by adjusting the position of the conical step layer that the whetstone base 6 engages with, thereby adapting to the processing needs of larger or smaller shaped tubes 8.

[0023] The specific operation of this utility model tool structure is as follows: The shaped tube 8 workpiece clamping unit is installed on the equipment mounting hole to fix the shaped tube 8 workpiece. The assembled tool is installed on the shaped tube 8 through four oilstones. Rotating the equipment spindle causes the shaped tube 8 to rotate, and its compression spring 5 is stressed, ensuring that the chamfered surface of the oilstone 7 is in close contact with the outer circle of the shaped tube 8. Moving the tool back and forth, the pressure of the pressure sleeve 4 is adjusted to ensure that the chamfered surface of the oilstone 7 is in close contact with the outer circle of the shaped tube 8. During the grinding process, the pressure of the pressure sleeve 4 is reasonably adjusted to speed up the grinding, improve the processing efficiency, and improve the roughness of the ground outer circle wall, minimizing the wear of the equipment and grinding tools, greatly improving the processing efficiency and tool life, and reducing the processing cost. The shaped thin-walled tube outer circle honing tool has a 100% yield and small precision error, which improves the processing efficiency by 50% and the processing accuracy by 100%, with a roughness of Ra0.1-0.2.

[0024] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A honing tool structure for the outer circle of an irregularly shaped thin-walled tube, characterized in that, It includes two double-ended screws, two bases fixed by the two double-ended screws and respectively spirally connected to the outer periphery of the two ends of the double-ended screws, an elastic element located on the outer periphery of the double-ended screws and fixed between the two bases, and a pressure sleeve screwed to the end of the double-ended screws for adjusting the distance between the two bases; The two bases have recessed grooves on their opposite surfaces, and an oilstone for grinding workpieces is placed in the grooves.

2. The honing tool structure for the outer circle of an irregularly shaped thin-walled tube according to claim 1, characterized in that, The slot has symmetrically arranged conical stepped grooves on both sides, and an oilstone base is fitted inside the conical stepped groove, with the oilstone fixed on the oilstone base.

3. The honing tool structure for the outer circle of an irregularly shaped thin-walled tube according to claim 2, characterized in that, The number of tapered stepped grooves is multiple, and the multiple tapered stepped grooves are equally spaced on the side wall of the slot.

4. The honing tool structure for the outer circle of an irregularly shaped thin-walled tube according to claim 3, characterized in that, Each of the aforementioned oilstone bases is fixed with two oilstones, which are positioned near the two side walls of the slot; Each of the aforementioned oilstones has a chamfered surface facing the workpiece.

5. The honing tool structure for the outer circle of an irregularly shaped thin-walled tube according to claim 1, characterized in that, The elastic element is a compression spring.

6. The honing tool structure for the outer circle of an irregularly shaped thin-walled tube according to claim 1, characterized in that, A gasket is also provided between the pressure sleeve and the base.

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