CN203863043U - Multi-position cutter head for lathe - Google Patents

Abstract

A multi-station cutter head for a lathe belongs to the field of lathe tooling structure, including a tool, a station, a knife groove, a cutter head, a screw sleeve, a fixed shaft, a spring and a positioning pin. Octagonal structure, the axis of the cutter head is a fixed shaft, the cutter head is connected to the fixed shaft through a screw sleeve to facilitate the replacement of the tool position, the positioning pin is provided in the cutter head for positioning when the cutter head is changed, the end of the positioning pin is provided with a spring, the cutter head There are corresponding stations on the top in turn, each station has a corresponding hole on the fixed shaft, the hole on the fixed shaft is matched with the positioning pin, and each station on the cutter head is provided with a corresponding knife groove , Different types of knives are installed on the knife groove. Therefore, this cutter head solves the problem that the large axial stroke of the traditional lathe leads to the large machining tolerance of the workpiece, and the production efficiency of the sample is extremely low and the origin cannot be guaranteed to be the same every time the tool is replaced and aligned.

Description

A multi-tool cutterhead for lathes

technical field

The utility model relates to a multi-cutter cutter head for a lathe, which belongs to the field of lathe tooling structures.

Background technique

Lathes are mainly used to process shafts, disks, sleeves and other workpieces with rotating surfaces, mainly cylinders are the most widely used type of machine tools in machinery manufacturing and repair factories. In the process of processing, the lathe mainly adopts the method of part rotation and forward and backward tool fixing. Generally, a lathe is equipped with multiple stations and various tools in the axial and longitudinal directions. The axial stroke of the lathe in this processing method needs to be large and the stroke is too large The tolerance size of the workpiece tends to be too large during processing, or one station is used to replace multiple tools for fixed-point processing. This processing method is extremely troublesome and time-consuming to replace the tools each time. The production efficiency is extremely low, and each tool alignment needs to be carried out. The sample and cannot guarantee the same origin. In order to solve the problems existing in traditional lathe machining, it is necessary to develop a new type of lathe cutter head that does not need to change tools frequently, can reduce the axial stroke of the lathe, and ensure the machining accuracy.

Contents of the invention

The purpose of the utility model is to provide a multi-tool cutterhead for lathes.

The problem to be solved by the utility model is that the excessive axial stroke of the traditional lathe leads to the large machining tolerance of the workpiece, and the production efficiency of the sample is extremely low and the origin cannot be guaranteed to be the same every time the tool is replaced and aligned.

For realizing the purpose of the utility model, the technical scheme that the utility model adopts is:

A multi-station cutterhead for lathes, including cutters, stations, tool grooves, cutterheads, screw sleeves, fixed shafts, springs and positioning pins, the cutterhead is in an outer hexagonal or outer octagonal structure, and the cutterhead The shaft center is a fixed shaft, the bottom of the cutter head has external threads, and the bottom of the fixed shaft has external threads. The cutter head is connected to the fixed shaft through a screw sleeve to facilitate the replacement of the tool position. There are positioning pins in the cutter head for positioning when the cutter head is replaced. , There is a spring at the end of the positioning pin, the spring makes the positioning pin pop up and compress, and the corresponding stations are arranged on the top of the cutter head, and each station is provided with a corresponding hole on the fixed shaft. The positioning pins are paired, and each time the tool position is changed, only the positioning pin needs to be inserted into the station, which is convenient and accurate. Each station on the cutter head is equipped with a corresponding tool slot, and different types of knives are installed on the tool slot, and the cutter head is fixed. Which tool is needed after the lathe can be processed conveniently and accurately only by turning the cutter head.

The cutterhead is made of alloy steel; there are 6-8 cutter grooves.

The utility model has the advantages that: there are 6-8 knives on one cutter head, and the replacement of the cutter only needs to fix the cutter on the corresponding knife groove and turn the cutter head, and the positioning pins are matched and locked with the corresponding stations. The screw sleeve is enough, which not only greatly reduces the time for each tool replacement, but also keeps the original position of the tool for each replacement basically the same. These tools on one cutter head greatly reduce the axial stroke of the lathe, ensuring that the dimensional tolerance of the workpiece to be machined The machining accuracy is more accurate.

Description of drawings

Fig. 1 is an overall structural diagram of a multi-tool cutterhead for a lathe of the present invention;

Fig. 2 is a bottom view of a multi-tool cutter head for a lathe of the present invention;

Fig. 3 is a cross-sectional view of a multi-tool cutterhead for a lathe of the present invention;

In the figure: 1. Tool 2. Station 3. Tool slot 4. Cutter disc 5. Screw sleeve 6. Fixed shaft 7. Spring 8. Locating pin.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

The utility model is a multi-cutter cutter head for a lathe, comprising a tool 1, a station 2, a knife groove 3, a cutter head 4, a screw sleeve 5, a fixed shaft 6, a spring 7 and a positioning pin 8, the cutter head 4. The outer hexagonal or outer octagonal structure is processed by alloy steel materials. The axis of the cutter head 4 is the fixed shaft 6. The bottom of the cutter head 4 has external threads, and the bottom of the fixed shaft 6 has external threads. The cutter head 4 passes through the screw sleeve 5 It is connected with the fixed shaft 6 to facilitate the replacement of the tool position. There is a positioning pin 8 inside the cutter head 4 to facilitate the positioning of the cutter head 4. The end of the positioning pin 8 is provided with a spring 7. The spring 7 makes the positioning pin 8 pop up and compressible. 4. There are corresponding stations 2 in sequence above each station. Each station 2 is provided with a corresponding hole on the fixed shaft 6. The holes on the fixed shaft 6 are matched with the positioning pin 8. Only positioning is required each time the tool position is changed. The pin 8 can be inserted into the station 2 conveniently and accurately. Each station 2 on the cutter head 4 is provided with a corresponding knife groove 3, and the cutter groove 3 has 6-8 cutters 1 of different types, and the cutter head 4 is fixed on the Which cutting tool 1 is required on the lathe only needs to rotate the cutter head 4 and can be processed conveniently and accurately.

The use method of the utility model: fix the fixed shaft 6 of the cutter head 4 on the tool rest of the lathe, select the corresponding cutter 1 on the knife groove 3 according to the processing requirements, and lock the screw sleeve 5 to process the parts. When replacing other cutters 1 on the cutterhead 4, it is only necessary to loosen the screw sleeve 5 and rotate the cutterhead 4. When the positioning pin 8 clicks and pops into the hole on the fixed shaft 6, the rotation can be stopped. When other cutters 1 on the cutter groove 3 are needed Just turn it hard again, and when the cutter 1 on the cutter head 4 is not enough, you only need to fix the corresponding cutter 1 on the knife groove 3 of the cutter head 4; The axial travel of the small lathe ensures the processing accuracy and other advantages.

Claims (3)

1. A multi-station cutterhead for lathes, including cutters (1), stations (2), tool slots (3), cutterheads (4), screw sleeves (5), fixed shafts (6), The spring (7) and the positioning pin (8) are characterized in that: the cutterhead (4) has an outer hexagonal or outer octagonal structure, the axis of the cutterhead (4) is the fixed shaft (6), and the cutterhead (4) The car at the bottom has external threads, the car below the fixed shaft (6) has external threads, the cutter head (4) is connected with the fixed shaft (6) through the screw sleeve (5), and the cutter head (4) is provided with a positioning pin (8), A spring (7) is provided at the end of the locating pin (8), and corresponding stations (2) are sequentially provided above the cutter head (4), and each station (2) is provided with a corresponding station on the fixed shaft (6). hole, the hole on the fixed shaft (6) is paired with the positioning pin (8), each station (2) on the cutter head (4) is provided with a corresponding knife groove (3), and the knife groove (3) is equipped with Different types of knives (1). 2. A multi-tool cutterhead for lathes according to claim 1, characterized in that: the cutterhead (4) is made of alloy steel. 3. A multi-station cutterhead for lathes according to claim 1, characterized in that: there are 6-8 said sipes (3).