CN205128958U - Numerical control lathe knife rest - Google Patents

Abstract

The utility model relates to the field of lathe tool holders, in particular to a numerical control lathe tool holder. Including tool holder, tool bar groove, shaft, turning tool, compression bolt and fixing bolt, a through hole is arranged along the central axis of the tool holder, the shaft is placed in the through hole of the tool holder, and the compression bolt is placed in the tool holder The top is connected with the shaft in the through hole, the left and right sides of the tool holder are respectively provided with arbor-shaped grooves, the bottom edge of the tool holder is provided with arbor-shaped grooves, and the arbor-shaped grooves are provided with threaded holes, corresponding to the arbor-shaped grooves In terms of position, there is also a threaded hole on the turning tool, and the turning tool is fixed with the tool bar groove through the fixing bolt; the problem of zero point drift of the turning tool is solved, the absolute zero point is realized, and the machining accuracy is improved.

Description

CNC lathe tool post

technical field

The utility model relates to the field of lathe tool holders, in particular to a numerically controlled lathe tool holder.

Background technique

The CNC lathe tool post used in the wind power flange industry is a manual machine clamping type. Every time the worker changes the tool or the turning tool is loosened and re-clamped, the zero point set by the turning tool in the CNC system will be changed, resulting in the need for each machining. Finding benchmarks leads to low production efficiency, increased labor intensity, and errors in multiple measurements, resulting in reduced processing accuracy and quality stability, which is not conducive to the modernization of production management, and the high flexibility of CNC lathes has not been fully utilized.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a CNC lathe tool holder which can solve the problem of zero point drift of the turning tool, realize absolute zero point, high processing precision and stable processing quality.

The utility model comprises: a tool holder, a cutter bar groove, a shaft, a turning tool, a pressing bolt and a fixing bolt; the tool holder is a cuboid, and a through hole is arranged along the central axis of the tool holder; the shaft is placed in the through hole of the tool holder Inside; the compression bolt is placed on the top of the tool holder to connect with the shaft in the through hole. When the compression bolt is loosened, the tool holder can be rotated to replace the turning tool; Rod-shaped slots, the two tool-bar-shaped slots are parallel to the center line; there is a tool-bar-shaped slot near the bottom edge (15mm) of the tool holder, and the tool-bar-shaped grooves are perpendicular to the center line; the four sides of the tool holder are equipped with There are three knife bar grooves on each surface; two threaded holes are provided in the two knife bar grooves parallel to the center line, and three thread holes are provided in the knife bar groove perpendicular to the center line. One threaded hole is set on the center line, and the other two are placed at both ends of the center line, and the distance from the center line is equal. At the position corresponding to the tool bar groove, there are also two threaded holes on the turning tool. The turning tool and the tool bar groove are fixed together by the fixing bolt, which avoids the change of the position when installing the turning tool and improves the processing progress; the tool bar groove near the bottom edge of the tool holder is divided into two sections, the left half section The bar-shaped groove is lower than the right-half cutter bar-shaped groove, and the left half-section processed groove communicates with the right half-section processed-shaped groove. A small boss is formed at the connection between the left half of the processed groove and the right half of the processed groove to withstand the top of the tool handle and provide a horizontal support force for the turning tool to prevent the tool from turning when it is feeding and cutting. The knife vibrates, the knife falls and so on.

Description of drawings

Fig. 1 is the structural representation of the utility model

In the figure: 1. Tool holder, 2. Tool bar groove, 3. Shaft, 4. Turning tool, 5. Compression bolt, 6. Fixing bolt

detailed description

The tool holder 1 is a cuboid, and a through hole is provided along the central axis of the tool holder 1; the shaft 3 is placed in the through hole of the tool holder 1; the compression bolt 5 is placed on the top of the tool holder 1, and is connected with the shaft 3 in the through hole , the distance from the left and right sides (10mm) of the tool holder 1 is respectively provided with a tool bar groove 2, and the position near the bottom edge (15mm) of the tool holder 1 is provided with a knife bar groove 2, and two tool bar grooves 2 parallel to the center line There are threaded holes inside, and three threaded holes are arranged on the knife bar groove 2 perpendicular to the center line. On the position corresponding to the knife bar groove 2, two threaded holes are also arranged on the turning tool 4, and the turning tool 4 The turning tool 4 and the tool bar groove 2 are fixed together by the fixing bolt 6. The tool bar groove 2 near the bottom edge of the tool holder 1 is divided into two sections, and the left half of the tool bar groove 2 is opposite to the right half of the tool bar. Type groove 2 is low, and left half section processing type groove 2 communicates with right half section processing type groove 2, and the place that left half section processing type groove 2 connects with right half section processing type groove 2 forms a small boss.

Claims (3)

1. A CNC lathe tool rest is characterized in that it comprises a knife rest, a tool bar groove, an axle, a turning tool, a hold-down bolt and a fixing bolt, the central axis direction of the extension tool rest is provided with a through hole, and the shaft is placed on the tool rest. In the through hole of the holder, the compression bolt is placed on the top of the tool holder to connect with the shaft in the through hole. The left and right sides of the tool holder are respectively provided with arbor-shaped grooves, and the bottom edge of the tool holder is provided with arbor-shaped grooves. A threaded hole is provided, and the turning tool is also provided with a threaded hole at a position corresponding to the knife bar groove, and the turning tool is fixed together with the turning tool and the knife bar groove by fixing bolts. 2. A kind of numerically controlled lathe tool rest according to claim 1, it is characterized in that, described knife bar type groove near the bottom edge of the tool rest is divided into two sections, and the left half section knife bar shaped groove is opposite to the right half. The segment cutter bar groove is low, the left half processed groove communicates with the right half processed groove, and the place where the left half processed groove connects with the right half processed groove forms a small boss. 3. A CNC lathe tool holder according to claim 1, characterized in that the four surfaces of the tool holder, the front, the rear, the left and the right, are provided with tool bar-shaped grooves, and each surface has three tool bar-shaped grooves in total.