CN104001949A - Multi-cutter-station cutter disk frame - Google Patents

Abstract

A multi-tool position cutterhead frame belongs to the field of lathe tooling structure, including cutters, stations, tool grooves, cutterheads, screw sleeves, fixed shafts, springs and positioning pins, and the cutterhead is in an outer hexagonal or outer octagonal structure. The axis of the cutter head is a fixed shaft, and 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 changed. There are corresponding stations, 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, the knife groove There are different types of knives mounted on it. 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 problem that the production efficiency of the sample is extremely low and the origin cannot be guaranteed every time the tool is replaced and aligned.

Description

A multi-knife position cutter holder

technical field

The invention relates to a multi-tool position cutter frame, which belongs to the field of lathe tooling structure.

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 present invention is to provide a multi-tool position cutter head frame.

The problem to be solved by the present invention is that the excessively 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.

For realizing the purpose of the present invention, the technical scheme that the present invention adopts is:

A multi-tool cutterhead frame, including cutters, stations, knife grooves, cutterheads, screw sleeves, fixed shafts, springs and positioning pins, the cutterhead is in an outer hexagonal or outer octagonal structure, and the axis of the cutterhead is 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 changed. There is a spring at the end, the spring makes the positioning pin pop out and compress, and the corresponding stations are arranged on the top of the cutter head in turn, and each station has a corresponding hole on the fixed shaft, and the hole on the fixed shaft is matched with the positioning pin , each time the tool position is changed, only the positioning pin is inserted into the station, which is convenient and accurate. Each station on the cutter head is provided with a corresponding tool slot, and different types of tools are installed on the tool slot, and the cutter head is fixed on the lathe. Which tool is needed in the end 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 advantage of the present invention is: 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 pin and the corresponding station are matched with the locking screw. It only needs to be set, 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 the dimensional tolerance of the workpiece to be machined The accuracy is more accurate.

Description of drawings

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

Fig. 2 is a bottom view of a multi-knife position cutterhead frame of the present invention;

Fig. 3 is a cross-sectional view of a multi-knife position cutterhead frame 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

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

A kind of multi-knife position cutter frame of the present invention, comprises tool 1, station 2, knife groove 3, cutter head 4, screw sleeve 5, fixed shaft 6, spring 7 and positioning pin 8, and described cutter head 4 is made of alloy steel The material is processed into an external hexagonal or external octagonal structure. 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 is connected to the fixed shaft 6 through the screw sleeve 5. It is connected to facilitate the replacement of the cutter position. The cutter head 4 is provided with a positioning pin 8 for positioning when the cutter head 4 is transposed. The end of the positioning pin 8 is provided with a spring 7. The spring 7 makes the positioning pin 8 ejectable and compressible. There are corresponding stations 2, and each station 2 is provided with a corresponding hole on the fixed shaft 6, and the holes on the fixed shaft 6 are matched with the positioning pin 8, and only the positioning pin 8 needs to be inserted into the tool position each time. Position 2 can be convenient and accurate. Each station 2 on the cutter head 4 is provided with a corresponding knife groove 3. There are 6-8 cutter grooves 3 equipped with different types of cutters 1. After the cutter head 4 is fixed on the lathe, it needs Which cutter 1 only needs to rotate the cutter head 4 and can be processed conveniently and accurately.

The use method of the present invention: fix the fixed shaft 6 of the cutter head 4 on the tool rest of the lathe, select the corresponding cutter 1 on the cutter groove 3 according to the processing requirements, and the locking screw sleeve 5 can process the parts, and when it needs to be replaced When other cutters 1 on the cutter head 4 only need to loosen the screw sleeve 5 to rotate the cutter head 4, the positioning pin 8 snaps into the hole on the fixed shaft 6 and then stops rotating, and when the cutter 1 on other cutter grooves 3 is needed, turn it again. Just turn it hard, 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; Axial travel, to ensure machining accuracy and other advantages.

Claims (3)

1. A multi-station cutterhead frame, including cutters (1), stations (2), knife slots (3), cutterheads (4), screw sleeves (5), fixed shafts (6), springs (7 ) and positioning pins (8), characterized in that: the cutter head (4) has an outer hexagonal or outer octagonal structure, the axis of the cutter head (4) is a fixed shaft (6), and the bottom of the cutter head (4) has a External thread, the car below the fixed shaft (6) has external thread, the cutter head (4) is connected with the fixed shaft (6) through the screw sleeve (5), the cutter head (4) is provided with a positioning pin (8), and the positioning pin ( 8) There is a spring (7) at the end, and corresponding stations (2) are arranged on the top of the cutter head (4) in turn, and each station (2) is provided with a corresponding hole on the fixed shaft (6) to fix The hole on the shaft (6) is paired with the positioning pin (8), and 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 knife (1). 2. A multi-station cutterhead holder according to claim 1, characterized in that: the cutterhead (4) is made of alloy steel. 3. A multi-station cutterhead holder according to claim 1, characterized in that: there are 6-8 cutter slots (3).