Internal diameter turning tool rest for axle suspension bush

Abstract

The utility model discloses a turning tool rest for the inner diameter of an axle suspension bush, which relates to the technical field of axle suspension bush processing, and comprises a turning tool rest and a boring tool, the boring tool is used for penetrating through the turning tool rest and stretching into the mounting hole of the boring rod, the boring tool can slide along the turning tool rest to keep the position after sliding, the structure is simple, use is convenient, and tremor is effectively eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing bush processing, in particular to a bearing bush inner diameter turning tool holder. Background Art

[0002] At present, when installing the locomotive bearing, the dimensions are measured after pre-installation, and then disassembled for boring. Moreover, the two bearings on a wheelset can only be bored separately. After boring, the coaxiality and position of the two bearings cannot be guaranteed, and multiple pre-installation turning is required. It may also cause the bearing to be scrapped after turning, and seriously affect the progress of locomotive maintenance. Therefore, a mobile and detachable electric locomotive bearing boring system was designed and manufactured. When the bearing boring machine is processing the inner diameter surface of the bearing, since the boring bar diameter is 50 and the base size of the inner diameter of the bearing is 210, the length of the boring cutter exposed from the boring bar is 80mm. The extended part has no rigid fixation, which produces vibration during the processing process, directly affecting the inner diameter size and surface roughness of the bearing, and the processing quality of the bearing cannot be guaranteed. Utility Model Content

[0003] The utility model aims to provide a bearing bush inner diameter turning tool holder to solve the problems existing in the prior art, with simple structure, convenient use and effective elimination of vibration.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a bearing bush inner diameter turning tool holder, comprising: a turning tool holder and a boring tool, wherein the turning tool holder is used for being sleeved and fixed on the outer side of the boring bar; the boring tool is used for passing through the turning tool holder and extending into the mounting hole of the boring bar, and the boring tool can slide along the turning tool holder and maintain the position after sliding.

[0006] Preferably, the turning tool holder comprises a first semicircular tool holder and a second semicircular tool holder, and the first semicircular tool holder and the second semicircular tool holder are detachably fixedly connected to be sleeved and fixed on the outer side of the boring bar.

[0007] Preferably, it also includes a plurality of fixing bolts, a first through hole is provided on both sides of the first semicircular tool holder, and a first threaded hole is provided on both sides of the second semicircular tool holder, and the bolts are used to pass through the first through holes and threadedly connected with the threaded holes to fix the first semicircular tool holder and the second semicircular tool holder.

[0008] Preferably, it also includes a first locking bolt, and a second threaded hole and a second through hole are provided in the middle portion of the second semicircular tool holder, the second through hole is used to correspond to the mounting hole of the boring bar so that the boring tool can be inserted, the second threaded hole is arranged perpendicular to the second through hole and is connected to the second through hole, and the first locking bolt is used to be threadedly connected to the second threaded hole and tighten the boring tool to fix the boring tool.

[0009] Preferably, a boring tool length adjustment rod is further included, a third through hole is provided in the middle portion of the first semicircular tool holder, the third through hole is provided corresponding to an end of the mounting hole of the boring bar away from the second through hole, the boring tool length adjustment rod is used to pass through the third through hole and then extend into the mounting hole of the boring bar and tighten the boring tool, the boring tool length adjustment rod can push the boring tool to extend outward and maintain the length after extension.

[0010] Preferably, it also includes a threaded sleeve and a second locking bolt, a third threaded hole is provided in the middle of the first semicircular tool holder, the third threaded hole is vertically arranged and connected to the third through hole, the threaded sleeve is used to be placed in the third through hole, the boring tool length adjustment rod is threadedly connected to the threaded sleeve, and the second locking bolt is used to be threadedly connected to the third threaded hole and tighten the threaded sleeve to fix the threaded sleeve.

[0011] Compared with the prior art, the utility model has achieved the following technical effects:

[0012] The utility model provides a bearing bush inner diameter turning tool holder. By arranging the turning tool holder, the boring tool is changed from extending from a boring bar to extending from the turning tool holder, thereby reducing the cantilever length of the boring tool, having a simple structure, being easy to use and effectively eliminating vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of the bearing bush inner diameter turning tool holder provided by the utility model;

[0015] Figure 2 A vertical sectional view of a bearing bush inner diameter turning tool holder provided by the utility model;

[0016] In the figure: 1. turning tool holder; 2. boring tool; 3. boring bar; 4. first semicircular tool holder; 5. second semicircular tool holder; 6. fixing bolt; 7. first locking bolt; 8. boring tool length adjustment rod; 9. second locking bolt; 10. threaded sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model aims to provide a bearing bush inner diameter turning tool holder to solve the problems existing in the prior art, with simple structure, convenient use and effective elimination of vibration.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The utility model provides a tool holder for turning the inner diameter of a bearing bush, such as Figures 1-2 As shown, it includes: a turning tool holder 1 and a boring tool 2. The turning tool holder 1 is used to be sleeved and fixed on the outer side of the boring bar 3; the boring tool 2 is used to pass through the turning tool holder 1 and extend into the mounting hole of the boring bar 3, and the boring tool 2 can slide along the turning tool holder 1 and maintain the position after sliding. By setting the turning tool holder 1, the boring tool 2 is changed from extending from the boring bar 3 to extending from the turning tool holder 1, thereby reducing the cantilever length of the boring tool 2, having a simple structure, being easy to use, and effectively eliminating vibration.

[0021] In a preferred embodiment, the turning tool holder 1 includes a first semicircular tool holder 4 and a second semicircular tool holder 5. The first semicircular tool holder 4 and the second semicircular tool holder 5 are detachably fixedly connected to be sleeved and fixed on the outer side of the boring bar 3, with a simple structure and easy installation.

[0022] In a preferred embodiment, the bearing inner diameter turning tool holder also includes a plurality of fixing bolts 6, first through holes are provided on both sides of the first semicircular tool holder 4, and first threaded holes are provided on both sides of the second semicircular tool holder 5. The bolts are used to pass through the first through holes and threadedly connect with the threaded holes to fix the first semicircular tool holder 4 and the second semicircular tool holder 5. The structure is simple and the installation is convenient.

[0023] In a preferred embodiment, the bearing inner diameter turning tool holder also includes a first locking bolt 7, and a second threaded hole and a second through hole are provided in the middle of the second semicircular tool holder 5. The second through hole is used to correspond to the mounting hole of the boring rod 3 so that the boring tool 2 can be inserted. The second threaded hole is arranged perpendicular to the second through hole and is connected to the second through hole. The first locking bolt 7 is used to be threadedly connected to the second threaded hole and tighten the boring tool 2 to fix the boring tool 2. The structure is simple, and the boring tool 2 is locked by the first locking bolt 7.

[0024] In a preferred embodiment, the inner diameter turning tool holder for the bearing bush also includes a boring tool length adjustment rod 8. A third through hole is provided in the middle of the first semicircular tool holder 4. The third through hole is provided corresponding to the end of the mounting hole of the boring bar 3 away from the second through hole. The boring tool length adjustment rod 8 is used to extend into the mounting hole of the boring bar 3 after passing through the third through hole and tighten the boring tool 2. The boring tool length adjustment rod 8 can push the boring tool 2 to extend outward and maintain the length after extension. The structure is simple. According to the technical requirements, the boring tool length adjustment rod 8 controls the elongation of the boring tool 2, ensuring the machining dimensional accuracy and coaxiality of the bearing bush. The maintenance quality is ensured, and it has the advantages of simple operation and convenient and quick carrying and assembly.

[0025] In a preferred embodiment, the bearing inner diameter turning tool holder also includes a threaded sleeve 10 and a second locking bolt 9. A third threaded hole is provided in the middle of the first semicircular tool holder 4. The third threaded hole is vertically arranged and connected to the third through hole. The threaded sleeve 10 is used to be placed in the third through hole. The boring tool length adjustment rod 8 is threadedly connected to the threaded sleeve 10. The second locking bolt 9 is used to be threadedly connected to the third threaded hole and tighten the threaded sleeve 10 to fix the threaded sleeve 10. The structure is simple, and the elongation of the boring tool 2 can be adjusted by rotating the boring tool length adjustment rod 8 to ensure accurate adjustment.

[0026] When in use, align the boring tool 2 and the boring tool length adjustment rod 8 with the mounting holes on the boring bar 3, tighten the fixing bolts 6 of the first semicircular tool holder 4 and the second semicircular tool holder 5 of the turning tool holder 1, fix the turning tool holder 1 on the boring bar 3, loosen the first locking bolt 7 and the second locking bolt 9, adjust the boring tool length adjustment rod 8 to adjust the extension length of the boring tool 2, and tighten the first locking bolt 7 and the second locking bolt 9 after debugging. After adjustment, turn the boring bar 3 to start boring.

[0027] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A tool holder for turning the inner diameter of a bearing bush, characterized in that: include: A turning tool holder, the turning tool holder is used to be sleeved and fixed on the outer side of the boring bar; as well as A boring tool is used to pass through the turning tool holder and extend into the mounting hole of the boring bar, and the boring tool can slide along the turning tool holder and maintain the position after sliding.

2. The bearing bush inner diameter turning tool holder according to claim 1, characterized in that: The turning tool holder comprises a first semicircular tool holder and a second semicircular tool holder, wherein the first semicircular tool holder and the second semicircular tool holder are detachably fixedly connected to be sleeved and fixed on the outer side of the boring bar.

3. The bearing bush inner diameter turning tool holder according to claim 2, characterized in that: It also includes multiple fixing bolts. First through holes are provided on both sides of the first semicircular tool holder, and first threaded holes are provided on both sides of the second semicircular tool holder. The bolts are used to pass through the first through holes and threadedly connect with the threaded holes to fix the first semicircular tool holder and the second semicircular tool holder.

4. The bearing bush inner diameter turning tool holder according to claim 3, characterized in that: It also includes a first locking bolt, and a second threaded hole and a second through hole are provided in the middle of the second semicircular tool holder, the second through hole is used to correspond to the mounting hole of the boring bar so that the boring tool can be inserted, the second threaded hole is arranged perpendicular to the second through hole and is connected to the second through hole, and the first locking bolt is used to be threadedly connected to the second threaded hole and tighten the boring tool to fix the boring tool.

5. The bearing bush inner diameter turning tool holder according to claim 4, characterized in that: It also includes a boring tool length adjustment rod. A third through hole is provided in the middle of the first semicircular tool holder. The third through hole is provided corresponding to an end of the mounting hole of the boring bar away from the second through hole. The boring tool length adjustment rod is used to pass through the third through hole and then extend into the mounting hole of the boring bar and tighten the boring tool. The boring tool length adjustment rod can push the boring tool to extend outward and maintain the length after extension.

6. The bearing bush inner diameter turning tool holder according to claim 5, characterized in that: It also includes a threaded sleeve and a second locking bolt. A third threaded hole is provided in the middle of the first semicircular tool holder. The third threaded hole is vertically arranged and connected to the third through hole. The threaded sleeve is used to be placed in the third through hole. The boring tool length adjustment rod is threadedly connected to the threaded sleeve. The second locking bolt is used to be threadedly connected to the third threaded hole and tighten the threaded sleeve to fix the threaded sleeve.

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