CN208840920U - For processing the lathe saddle of shaft central hole - Google Patents

Abstract

The purpose of the utility model is to provide a kind of for processing the lathe saddle of shaft central hole, the precision of processing is high, it is high-efficient, tool holder body including both ends of the shaft side to be processed is arranged in, centre drill is provided in tool holder body, the drill bit of centre drill is directed toward shaft to be processed and the central spindle of drill bit is conllinear with the central spindle of shaft to be processed.In above scheme, by in the tool holder body installation center bore, after shaft to be processed has milled both ends end face, directly using centre drill simultaneously centre bore is processed to both ends, the processing that dragging tailstock carries out centre bore is avoided, the machining accuracy of centre bore is improved, improves work efficiency.

Description

For processing the lathe saddle of shaft central hole

Technical field

The utility model relates to technical field of motor manufacture, and in particular to a kind of for processing the knife rest of shaft central hole.

Background technique

Existing numerically controlled lathe generally require in turnery processing and process positioning using centre drill to machine shaft Centre bore, to improve machining accuracy.At present be usually according to blanking, end face milling, drill centers, it is rough turn, cut slot, smart car it is suitable Sequence processing, after having milled end face, the centre drill of tailstock tool is processed, centre bore upper another a machine tool again after processing is completed, and two End holds out against spindle central hole machined plunger position, but plunger position is different with the machining benchmark point of both ends centre bore, the jump of axis It is dynamic big.

Utility model content

The purpose of the utility model is to provide a kind of for processing the lathe saddle of shaft central hole, and the precision of processing is high, It is high-efficient.

To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of for processing shaft central hole Lathe saddle, the tool holder body including both ends of the shaft side to be processed is arranged in are provided with centre drill in tool holder body, centre drill Drill bit is directed toward shaft to be processed and the central spindle of drill bit is conllinear with the central spindle of shaft to be processed.

In above scheme, by the tool holder body installation center bore, after shaft to be processed has milled both ends end face, Centre bore directly is processed to both ends simultaneously using centre drill, the processing that dragging tailstock carries out centre bore is avoided, improves The machining accuracy in heart hole improves work efficiency.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the top view of support and centre drill；

Fig. 3 is the cross-sectional view of support and centre drill.

Specific embodiment

As shown in Figure 1-Figure 3, a kind of for processing the lathe saddle of shaft central hole, including setting in shaft A to be processed The tool holder body 10 of two end sides is provided with centre drill 30 in tool holder body 10, and the drill bit 31 of centre drill 30 is directed toward shaft A to be processed And the central spindle of drill bit 31 is conllinear with the central spindle of shaft A to be processed.By in the tool holder body 10 installation center bore 30, After shaft A to be processed has milled both ends end face, centre bore directly is processed to both ends simultaneously using centre drill 30, avoids dragging Tailstock carries out the processing of centre bore, improves the machining accuracy of centre bore, improves work efficiency, and centre bore only needs clamping one It is secondary, it damages small.

Preferably, centre drill 30 includes pedestal 32, and the through-hole 321 being inserted into for drill bit 31, through-hole 321 are offered on pedestal 32 Kong Xin it is conllinear with the central spindle of shaft A to be processed, the outer diameter of the internal diameter of through-hole 321 and drill bit 31 coincide, and also opens up on pedestal 32 There is threaded hole 322, the Kong Xin of threaded hole 322 intersects with the hole core of through-hole 321, and the first bolt 323 passes through threaded hole 322 and bores First 31 offset.The central spindle of central spindle and shaft A to be processed that drill bit 31 can be adjusted by replacing the pedestal 32 of different-thickness is total Line, if drill bit 31 damages, the setting of the first bolt 323 and threaded hole 322 can easily realize drill bit 31 more again It changes.

In order to guarantee the stability of drill bit 31, threaded hole 322 is arranged at intervals with 2 and threaded hole 322 on pedestal 32 The Kong Xin of Kong Xin and through-hole 321 are arranged vertically.

Further, centre drill 30 constitutes detachable connection by support 20 and tool holder body 10, and support 20 is whole to be in Strip and block offers U-type groove on stick, and notch is towards horizontal direction, and flute length is consistent with the central spindle of shaft A to be processed, pedestal 32 Seat body merging in part has in U-type groove and is locked by the second bolt 21, and support 20 is additionally provided with through hole 22, and third bolt 23 is worn It crosses through hole 22 support 20 is fixed in tool holder body 10.

Claims (4)

1. a kind of for processing the lathe saddle of shaft central hole, it is characterised in that: including being arranged in two end side shaft A to be processed Tool holder body (10), be provided with centre drill (30) in tool holder body (10), the drill bit (31) of centre drill (30) is directed toward to be processed The central spindle of shaft A and drill bit (31) is conllinear with the central spindle of shaft A to be processed.

2. according to claim 1 for processing the lathe saddle of shaft central hole, it is characterised in that: centre drill (30) packet Include pedestal (32), offered on pedestal (32) for drill bit (31) insertion through-hole (321), the Kong Xin of through-hole (321) with it is to be processed The central spindle of shaft A is conllinear, and the internal diameter of through-hole (321) and the outer diameter of drill bit (31) coincide, and pedestal is also provided with threaded hole on (32) (322), the Kong Xin of threaded hole (322) intersects with the hole core of through-hole (321), and the first bolt (323) passes through threaded hole (322) and bores Head (31) offsets.

3. according to claim 2 for processing the lathe saddle of shaft central hole, it is characterised in that: threaded hole (322) The Kong Xin that the Kong Xin and through-hole (321) of 2 and threaded hole (322) are arranged at intervals on pedestal (32) is arranged vertically.

4. according to claim 2 for processing the lathe saddle of shaft central hole, it is characterised in that: centre drill (30) is logical It crosses support (20) and tool holder body (10) and constitutes detachable connection, support (20) is integrally in strip and block, is offered on stick U-shaped Slot, for notch towards horizontal direction, flute length is consistent with the central spindle of shaft A to be processed, and the part seat body merging of pedestal (32) has in U-type groove And locked by the second bolt (21), support (20) is additionally provided with through hole (22), and third bolt (23) passes through through hole (22) Support (20) is fixed on tool holder body (10).