High-precision single oilstone expansion type honing tool

Abstract

The utility model discloses a high-precision single oilstone expansion type honing tool which comprises a fixing assembly and a honing oilstone. The number of the honing oilstone is only one, and the single honing oilstone is installed on the fixing assembly. The single honing oilstone is used for honing the workpiece, and compared with the design of a plurality of honing oilstones, the problem that the honing roundness is out of tolerance can be avoided, so that the machining precision can be effectively improved. The honing tool and the main shaft of the honing equipment are in floating connection through the universal adapter, so that the problem of uneven stress of the honing tool caused by errors such as location degree, perpendicularity and straightness can be eliminated, and then micron-sized cutting allowance can be guaranteed, and the cutting process can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of honing equipment accessories, in particular to a high-precision single oilstone expansion and contraction honing tool. Background Art

[0002] Multi-stroke honing is a finishing process performed after casting and machining. It is designed to meet the geometric accuracy and surface roughness requirements of the machined hole. After nearly a decade of development, the multi-stroke honing process has become relatively sophisticated. This process is now capable of machining internal bore surfaces with high cutting efficiency and high stock removal. Multi-stroke honing creates a spiral, cross-shaped, reticulated pattern of grooves at a specific angle on the bore's inner surface, improving the surface structure and facilitating lubrication of the oil. This reduces friction and wear on the valve core as it moves within the bore.

[0003] In the existing technology, the honing tools of the honing equipment used for multi-stroke honing have the problem of uneven force on the honing tools caused by errors such as position, verticality, and straightness, and the problem of excessive honing roundness caused by inconsistent installation heights of multiple honing oilstones. These problems will reduce the final honing quality. Summary of the Invention

[0004] In view of this, the utility model provides a high-precision single oilstone expansion and contraction honing tool, which has high machining accuracy and can eliminate the influence of errors.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-precision single-oil-stone expansion-contraction honing tool comprises a fixing component and a honing oil stone.

[0007] Among them, there is only one honing oilstone, and the single honing oilstone is installed on the fixed component; the fixed component includes a bevel wedge and an angle head; the bevel wedge is provided with an inclined mounting surface, and the honing oilstone is installed on the inclined mounting surface through the angle head, and the angle head is fixedly connected to the bevel wedge, and the inclination angle of the mating surface of the honing oilstone and the inclined mounting surface is the same as the inclination angle of the inclined mounting surface.

[0008] Preferably, the high-precision single oilstone expansion and contraction honing tool also includes a coupling assembly and a joint; the coupling assembly includes a universal joint, and the honing tool is connected to the main shaft through the universal joint; the upper end of the inclined wedge has a slender rod, and the slender rod passes through the center hole of the joint to be installed in the universal joint, the lower end of the joint abuts against the upper end surface of the angle head, and the upper end is transmission-connected to the lower end of the universal joint.

[0009] Preferably, the joint assembly further comprises an upper joint; the upper joint is fixedly connected to the upper end of the joint, and the joint is transmission-connected to the lower end of the universal joint via the upper joint.

[0010] Preferably, a spring is provided between the universal joint and the upper joint.

[0011] Preferably, the high-precision single oilstone expansion and contraction honing tool further includes a measuring ring gauge; the measuring ring gauge is sleeved on the joint, the lower end of the joint has an annular flange, and the measuring ring gauge abuts against the annular flange through a gasket.

[0012] Preferably, the high-precision single oilstone expansion and contraction honing tool further includes a movable electrode; the movable electrode is sleeved on the joint, and the lower end of the movable electrode abuts against the upper end of the measuring ring gauge.

[0013] Compared to existing technologies, the high-precision single-stone expanding and contracting honing tool disclosed in this application utilizes a single honing stone to hone the workpiece. Compared to designs using multiple honing stones, this design avoids the problem of honing roundness deviation, thereby effectively improving machining accuracy. The honing tool is connected to the main shaft of the honing equipment via a universal joint, eliminating the problem of uneven force on the honing tool caused by errors in position, perpendicularity, and straightness, thereby ensuring micron-level cutting allowances and a controllable cutting process.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the high-precision single oilstone expansion and contraction honing tool disclosed in the embodiment of the present application.

[0016] Reference numerals:

[0017] 1. Fixing assembly; 11. Wedge; 12. Angle head; 111. Slender rod;

[0018] 2. Honing oil stone;

[0019] 3. Joint assembly; 31. Universal joint; 32. Upper joint;

[0020] 4. Joint; 5. Spring; 6. Measuring ring gauge; 7. Gasket; 8. Movable electrode; 9. Annular flange. DETAILED DESCRIPTION

[0021] The utility model discloses a high-precision single oilstone expansion and contraction honing tool, which has high processing precision and can eliminate the influence of errors.

[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0024] Reference below Figure 1 The invention describes a high-precision single oilstone expansion and contraction honing tool in an embodiment of the invention.

[0025] The embodiment of the present application discloses a high-precision single-oilstone expansion-contraction honing tool, comprising: a fixing component 1 and a honing oilstone 2.

[0026] There is only one honing oilstone 2 , which is installed on the fixing assembly 1 .

[0027] In the prior art, the honing tools of honing equipment are mostly provided with multiple honing oilstones, and the multiple honing oilstones are generally arranged in the circumferential direction of the honing tool. Although this design has the effect of increasing the honing area, it has the problem of low processing precision. Specifically, when the multiple honing oilstones are installed, the problem of excessive honing roundness caused by inconsistent installation heights is prone to occur, thereby reducing the processing precision.

[0028] The present application is provided with only one honing oilstone 2, which is installed on the fixed component 1; by utilizing the expansion mechanism on the honing equipment, the single honing oilstone 2 is expanded radially and pressed against the hole wall of the workpiece to produce a certain surface contact. The control system of the honing equipment automatically senses the contact position between the honing oilstone 2 and the workpiece and sets the appropriate expansion amount before processing to achieve automatic expansion adjustment, while making the honing head rotate and reciprocate, thereby achieving honing.

[0029] In this way, by using a single honing oilstone 2 to hone the workpiece, compared with the design of multiple honing oilstones 2, the problem of excessive honing roundness can be avoided, thereby effectively improving the processing accuracy.

[0030] In some embodiments, for example Figure 1 As shown, the fixing assembly 1 includes an angled wedge 11 and an angled head 12. The angled wedge 11 has an inclined mounting surface, and the honing stone 2 is mounted on the inclined mounting surface via the angled head 12. The angled head 12 is fixedly connected to the angled wedge 11. The inclination angle of the mating surface of the honing stone 2 and the inclined mounting surface is the same as the inclination angle of the inclined mounting surface. This ensures the stable installation of the honing stone 2.

[0031] In some embodiments, for example Figure 1 As shown, the high-precision single oilstone expansion and contraction honing tool also includes a coupling assembly 3 and a joint 4; the coupling assembly 3 includes a universal joint 31, and the honing tool is connected to the main shaft through the universal joint 31; the upper end of the inclined wedge 11 has a slender rod 111, and the slender rod 111 passes through the center hole of the joint 4 to be installed in the universal joint 31, the lower end of the joint 4 abuts against the upper end surface of the angle head 12, and the upper end is transmission-connected to the lower end of the universal joint 31.

[0032] The honing tool and the main shaft of the honing equipment are floatingly connected through a universal joint 31. In this way, the problem of uneven force on the honing tool caused by errors such as position, verticality, and straightness can be eliminated, thereby ensuring micron-level cutting allowances and controllable cutting processes.

[0033] The joint 4 can protect the safety of the bevel wedge 11 and provide a certain support to prevent the slender rod 111 of the bevel wedge 11 from breaking during the honing process.

[0034] In some embodiments, for example Figure 1 As shown, the joint assembly 3 further includes an upper joint 32 ; the upper joint 32 is fixedly connected to the upper end of the joint 4 , and the joint 4 is transmission-connected to the lower end of the universal joint 31 via the upper joint 32 .

[0035] The upper connector 32 can form a double floating link with the universal connector 31, which can further enhance the floating effect and improve the controllability of the honing tool.

[0036] Furthermore, a spring 5 is provided between the universal joint 31 and the upper joint 32 .

[0037] In some embodiments, for example Figure 1 As shown, the high-precision single oilstone expansion and contraction honing tool also includes a measuring ring 6; the measuring ring 6 is sleeved on the joint 4, and the lower end of the joint 4 has an annular flange 9, and the measuring ring 6 abuts against the annular flange 9 through a gasket 7.

[0038] In some embodiments, for example Figure 1 As shown, the high-precision single oilstone expansion and contraction honing tool further includes a movable electrode 8 ; the movable electrode 8 is sleeved on the joint 4 , and the lower end of the movable electrode abuts against the upper end of the measuring ring 6 .

[0039] Other structures and operations of the high-precision single oilstone expansion and contraction honing tool according to the embodiment of the utility model are well known to those skilled in the art and will not be described in detail here.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-precision single oilstone expansion and contraction honing tool, characterized in that: include: Mounting components and honing stones; There is only one honing oilstone, and the single honing oilstone is mounted on the fixing assembly; The fixing assembly includes an angled wedge and an angle head; The inclined wedge is provided with an inclined mounting surface, the honing oilstone is installed on the inclined mounting surface through the angle head, the angle head is fixedly connected to the inclined wedge, and the inclination angle of the mating surface of the honing oilstone and the inclined mounting surface is the same as the inclination angle of the inclined mounting surface.

2. The high-precision single oilstone expansion and contraction honing tool according to claim 1, characterized in that: It also includes a joint assembly and a joint; the joint assembly includes a universal joint, and the honing tool is connected to the main shaft through the universal joint; The upper end of the inclined wedge has a slender rod, which passes through the central hole of the joint to be installed in the universal joint. The lower end of the joint abuts against the upper end surface of the angle head, and the upper end is transmission-connected to the lower end of the universal joint.

3. The high-precision single oilstone expansion and contraction honing tool according to claim 2, characterized in that: The joint assembly further comprises an upper joint; the upper joint is fixedly connected to the upper end of the joint, and the joint is transmission-connected to the lower end of the universal joint via the upper joint.

4. The high-precision single oilstone expansion and contraction honing tool according to claim 3, characterized in that: A spring is provided between the universal joint and the upper joint.

5. The high-precision single oilstone expansion and contraction honing tool according to claim 2, characterized in that: It also includes a test ring gauge; the test ring gauge is sleeved on the joint, the lower end of the joint has an annular flange, and the test ring gauge abuts against the annular flange through a gasket.

6. The high-precision single oilstone expansion and contraction honing tool according to claim 5, characterized in that: It also includes a movable electrode; the movable electrode is sleeved on the joint, and the lower end of the movable electrode abuts against the upper end of the measuring ring gauge.

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