Adjustable sleeve boring cutter

Abstract

The utility model relates to the field of mechanical workpiece machining, and discloses an adjustable sleeve boring cutter which comprises a main body, a groove, an adjusting assembly, a boring cutter assembly, a first chamfering assembly and a second chamfering assembly. The adjusting assembly comprises a pressing block and an adjusting screw. The boring cutter assembly, the first chamfering assembly or the second chamfering assembly can be extruded and fixed through the arranged pressing block; by arranging the adjusting screw, the boring cutter assembly, the first chamfering assembly or the second chamfering assembly can be clamped and fixed, and the adjusting screw is matched with the arranged pressing block, so that the stability of the boring cutter assembly, the first chamfering assembly or the second chamfering assembly in the machining process can be guaranteed; by screwing the adjusting screw, the positions of the boring cutter assembly, the first chamfering assembly or the second chamfering assembly in the groove can be adjusted, so that the large-end outer circle chamfering device can be used for simultaneously machining outer circles and chamfers of large ends of crankshafts with different specifications, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of machining of mechanical workpieces, in particular to an adjustable sleeve boring tool. Background Art

[0002] The crankshaft is one of the very important parts in an engine, and its design and manufacturing quality directly affect the performance and reliability of the engine. Facing the increasingly fierce market competition, in line with the principle of improving processing efficiency and saving production costs, some sleeve boring tools that can simultaneously machine the outer circle and chamfer of the large end of the crankshaft have emerged. However, most of the above-mentioned sleeve boring tools are non-adjustable, and they have great limitations in use when facing crankshafts of different specifications. Content of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide an adjustable sleeve boring tool to solve the problems existing in the above-mentioned prior art.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model provides an adjustable sleeve boring tool, including:

[0006] A main body, the front end of the main body is provided with a cross-shaped groove, and boring tool assemblies are arranged at two opposite ends of the groove through adjusting components, and a first chamfering component and a second chamfering component are respectively arranged at the other two ends through the adjusting components;

[0007] The adjusting component includes a pressing block arranged at the end of the groove, and the pressing block squeezes and fixes the boring tool assembly, the first chamfering component or the second chamfering component; an installation groove is arranged on the inner wall of the end of the groove, and an adjusting screw is threadedly connected in the installation groove, and the nut of the adjusting screw is clamped and matched with the boring tool assembly, the first chamfering component or the second chamfering component.

[0008] Further, the boring tool assembly includes a boring tool clamp clamped and matched with the nut of the adjusting screw, a boring tool blade is arranged at the front end of the boring tool clamp, and the pressing block squeezes and fixes the boring tool clamp.

[0009] Still further, a plurality of spaced slots are arranged at the rear end of the boring tool clamp, and the nut of the adjusting screw is clamped in one of the slots.

[0010] Still further, the first chamfering component includes a first chamfering tool clamp clamped and matched with the nut of the adjusting screw, a first chamfering blade is arranged at the front end of the first chamfering tool clamp, and the pressing block squeezes and fixes the first chamfering tool clamp.

[0011] Furthermore, a plurality of second slots arranged at intervals are provided at the rear end of the first chamfering tool holder, and the nut of the adjusting screw is clamped in one of the second slots.

[0012] Furthermore, the second chamfering assembly includes a second chamfering tool holder that is clamped and matched with the nut of the adjusting screw. A second chamfering blade is provided at the front end of the second chamfering tool holder, and the pressing block presses and fixes the second chamfering tool holder.

[0013] Furthermore, a plurality of third slots arranged at intervals are provided at the rear end of the second chamfering tool holder, and the nut of the adjusting screw is clamped in one of the third slots.

[0014] Furthermore, a plurality of limiting holes are arranged at intervals on the inner wall of the end of the groove. A pressing bolt is threadedly connected to the pressing block, and the screw end of the pressing bolt is inserted into one of the limiting holes.

[0015] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0016] The pressing block provided can play a role in pressing and fixing the boring tool assembly, the first chamfering assembly or the second chamfering assembly; by providing the adjusting screw, it can play a role in clamping and fixing the boring tool assembly, the first chamfering assembly or the second chamfering assembly. Cooperating with the provided pressing block can ensure the stability of the boring tool assembly, the first chamfering assembly or the second chamfering assembly during the processing; by turning the adjusting screw, the position of the boring tool assembly, the first chamfering assembly or the second chamfering assembly in the groove can be adjusted, so that the present utility model can simultaneously process the outer circle and chamfer of the large end of various different specifications of crankshafts, improving the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model with reference to the drawings.

[0018] Figure 1 It is a three-dimensional structural diagram of the adjustable sleeve boring tool of the present utility model;

[0019] Figure 2 It is another three-dimensional structural diagram of the adjustable sleeve boring tool of the present utility model;

[0020] Figure 3 It is a structural diagram of the cooperation between the first chamfering tool holder and the adjusting screw of the present utility model;

[0021] Figure 4 It is a structural diagram of the front end of the adjustable sleeve boring tool of the present utility model;

[0022] Figure 5 It is a structural diagram of the connection between the pressing block and the pressing bolt of the present utility model;

[0023] Figure 6 This is a schematic diagram of the planar structure of the large end of the crankshaft of the present utility model.

[0024] Explanation of reference numerals: 1, main body; 2, groove; 201, mounting groove; 3, adjustment assembly; 31, pressing block; 32, adjusting screw; 4, boring tool assembly; 41, boring tool clamp; 42, boring tool blade; 5, chamfering assembly one; 51, chamfering tool clamp one; 511, second card slot; 52, chamfering tool blade one; 6, chamfering assembly two; 61, chamfering tool clamp two; 62, chamfering tool blade two; 7, limiting hole; 8, pressing bolt. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] As Figures 1 - 6 shown, in this embodiment, an adjustable sleeve boring tool is disclosed, which includes a main body 1. A cross-shaped groove 2 is provided at the front end of the main body 1. Boring tool assemblies 4 are provided at two opposite ends of the groove 2 through adjustment assemblies 3 respectively, and a chamfering assembly one 5 and a chamfering assembly two 6 are provided at the other two ends through adjustment assemblies 3 respectively; the adjustment assembly 3 includes a pressing block 31 arranged at the end of the groove 2, and the pressing block 31 squeezes and fixes the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6; a mounting groove 201 is provided on the inner wall of the end of the groove 2, and an adjusting screw 32 is threadedly connected in the mounting groove 201, and the nut of the adjusting screw 32 is in snap-fit connection with the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6.

[0027] In this embodiment, a threaded hole adapted to the screw rod of the adjusting screw 32 is provided on the groove wall of the mounting groove 201, and the axial direction of the threaded hole is parallel to the length directions of the mounting groove 201 and the groove 2 where it is located; the screw rod of the adjusting screw 32 is threadedly connected in the threaded hole.

[0028] In this embodiment, the provided pressing block 31 can play a role in squeezing and fixing the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6; by providing the adjusting screw 32, it can play a role in snap-fixing the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6, and in cooperation with the provided pressing block 31, it can ensure the stability of the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6 during the processing; by turning the adjusting screw 32, the adjusting screw 32 can move along the length directions of the mounting groove 201 and the groove 2 where it is located, so as to adjust the position of the boring tool assembly 4, the chamfering assembly one 5 or the chamfering assembly two 6 in the groove 2, enabling the present utility model to simultaneously process the outer circle and chamfer of the large ends of various different specifications of crankshafts, improving the applicability.

[0029] For a further optimized solution, the boring tool assembly 4 includes a boring tool holder 41 that is snap-fitted with the nut of the adjusting screw 32. A boring tool blade 42 is provided at the front end of the boring tool holder 41, and the pressing block 31 presses and fixes the boring tool holder 41.

[0030] In this embodiment, the boring tool blade 42 is detachably connected to the boring tool holder 41 by means of a bolt connection, which facilitates the installation, disassembly, and replacement of the boring tool blade 42; the boring tool blade 42 is used for machining the outer diameter φD of the large end of the crankshaft; by the mutual cooperation of the provided pressing block 31 and the adjusting screw 32, a firm fixing effect can be achieved on the boring tool holder 41.

[0031] For a further optimized solution, a plurality of spaced-apart first slots are provided at the rear end of the boring tool holder 41, and the nut of the adjusting screw 32 is snap-fitted in one of the first slots. By the plurality of provided first slots and the mutual cooperation with the adjusting screw 32, it is convenient to adjust the position of the boring tool holder 41 in the groove 2.

[0032] For a further optimized solution, the chamfering component 5 includes a first chamfering tool holder 51 that is snap-fitted with the nut of the adjusting screw 32. A first chamfering tool blade 52 is provided at the front end of the first chamfering tool holder 51, and the pressing block 31 presses and fixes the first chamfering tool holder 51.

[0033] In this embodiment, the first chamfering tool blade 52 is detachably connected to the first chamfering tool holder 51 by means of a bolt connection, which facilitates the installation, disassembly, and replacement of the first chamfering tool blade 52; the first chamfering tool blade 52 is used for machining the C1 chamfer; by the mutual cooperation of the provided pressing block 31 and the adjusting screw 32, a firm fixing effect can be achieved on the first chamfering tool holder 51.

[0034] For a further optimized solution, a plurality of spaced-apart second slots 511 are provided at the rear end of the first chamfering tool holder 51, and the nut of the adjusting screw 32 is snap-fitted in one of the second slots 511. By the plurality of provided second slots 511 and the mutual cooperation with the adjusting screw 32, it is convenient to adjust the position of the first chamfering tool holder 51 in the groove 2.

[0035] For a further optimized solution, the chamfering component 6 includes a second chamfering tool holder 61 that is snap-fitted with the nut of the adjusting screw 32. A second chamfering tool blade 62 is provided at the front end of the second chamfering tool holder 61, and the pressing block 31 presses and fixes the second chamfering tool holder 61.

[0036] In this embodiment, the second chamfering tool blade 62 is detachably connected to the second chamfering tool holder 61 by means of a bolt connection, which facilitates the installation, disassembly, and replacement of the second chamfering tool blade 62; the second chamfering tool blade 62 is used for machining the C2 chamfer; by the mutual cooperation of the provided pressing block 31 and the adjusting screw 32, a firm fixing effect can be achieved on the second chamfering tool holder 61.

[0037] For a further optimized solution, a plurality of card slots III arranged at intervals are provided at the rear end of the chamfering tool holder II 61, and the nut of the adjusting screw 32 is clamped in one of the card slots III. Through the plurality of card slots III provided and in mutual cooperation with the adjusting screw 32, it is convenient to adjust the position of the chamfering tool holder II 61 in the groove 2.

[0038] For a further optimized solution, a plurality of limiting holes 7 are arranged at intervals on the inner wall of the end of the groove 2, a pressing bolt 8 is threadedly connected to the pressing block 31, and the screw end of the pressing bolt 8 is inserted into one of the limiting holes 7. Through the plurality of limiting holes 7 and the pressing bolt 8 provided, it is convenient to adjust the position of the pressing block 31 in the groove 2, so that the pressing block 31 can better play a role in extrusion.

[0039] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An adjustable boring bar, characterized in that: Comprising: A main body (1), a cross-shaped groove (2) is provided at the front end of the main body (1), boring tool assemblies (4) are provided at two opposite ends of the groove (2) through adjusting assemblies (3), and a first chamfering assembly (5) and a second chamfering assembly (6) are respectively provided at the other two ends through the adjusting assemblies (3); The adjusting assembly (3) includes a pressing block (31) provided at the end of the groove (2), and the pressing block (31) squeezes and fixes the boring tool assembly (4), the first chamfering assembly (5) or the second chamfering assembly (6); an installation groove (201) is provided on the inner wall of the end of the groove (2), an adjusting screw (32) is threadedly connected in the installation groove (201), and the nut of the adjusting screw (32) is clamped and matched with the boring tool assembly (4), the first chamfering assembly (5) or the second chamfering assembly (6).

2. The adjustable boring tool according to claim 1, wherein: The boring tool assembly (4) includes a boring tool clamp (41) clamped and matched with the nut of the adjusting screw (32), a boring tool blade (42) is provided at the front end of the boring tool clamp (41), and the pressing block (31) squeezes and fixes the boring tool clamp (41).

3. The adjustable sleeve boring tool according to claim 2, wherein: A plurality of spaced slots one are provided at the rear end of the boring tool clamp (41), and the nut of the adjusting screw (32) is clamped in one of the slots one.

4. The adjustable sleeve boring tool according to claim 1, wherein: The first chamfering assembly (5) includes a first chamfering tool clamp (51) clamped and matched with the nut of the adjusting screw (32), a first chamfering tool blade (52) is provided at the front end of the first chamfering tool clamp (51), and the pressing block (31) squeezes and fixes the first chamfering tool clamp (51).

5. The adjustable sleeve boring tool according to claim 4, wherein: A plurality of spaced slots two (511) are provided at the rear end of the first chamfering tool clamp (51), and the nut of the adjusting screw (32) is clamped in one of the slots two (511).

6. The adjustable boring tool according to claim 1, wherein: The second chamfering assembly (6) includes a second chamfering tool clamp (61) clamped and matched with the nut of the adjusting screw (32), a second chamfering tool blade (62) is provided at the front end of the second chamfering tool clamp (61), and the pressing block (31) squeezes and fixes the second chamfering tool clamp (61).

7. The adjustable boring tool according to claim 6, wherein: A plurality of spaced slots three are provided at the rear end of the second chamfering tool clamp (61), and the nut of the adjusting screw (32) is clamped in one of the slots three.

8. The adjustable boring tool according to claim 1, characterized in that: A plurality of limiting holes (7) are spacedly arranged on the inner wall of the end of the groove (2), a pressing bolt (8) is threadedly connected to the pressing block (31), and the screw end of the pressing bolt (8) is inserted into one of the limiting holes (7).

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