CN203003165U - Tool rest capable of adjusting angle of turning tool - Google Patents

Abstract

The utility model specifically discloses a turning tool angle adjustable tool holder, which includes a tool seat, a rotating shaft, a clamping device, a pressing device, and a turning tool. The rotating shaft passes through the tool seat, and one end of the rotating shaft is clamped The device cooperates with the outer surface of the tool seat, and the other end of the rotating shaft is provided with a groove, and the turning tool is pressed into the groove of the rotating shaft by the pressing device. The beneficial effects of the utility model are: by rotating the rotating shaft, the tool rod of the turning tool is driven to rotate around the axis, thereby driving the tool head to rotate axially, and realizing the fast and accurate adjustment of the rake angle and rear angle of the turning tool without changing or regrinding the turning tool. At the same time, the utility model uses some parts of the original square tool holder of the lathe, thereby simplifying the structure and reducing the cost.

Description

A turning tool angle adjustable tool holder

technical field

The utility model relates to a turning tool adjusting device, in particular to a device suitable for precisely adjusting the rake angle and back angle of a common turning tool on a horizontal lathe, and belongs to the field of mechanical processing technology equipment.

Background technique

Turning is the main part processing technology in the field of machinery manufacturing. In general, when turning a workpiece, it is necessary to select turning tools with different turning tool angles according to the cutting conditions of the process system. Although there are many types of turning tools, for a single turning tool, the marked angles of the turning tool such as the rake angle and rear angle are all fixed values. Therefore, two methods are mainly used to adjust the angle of the turning tool in production: 1. To adjust the angle of the turning tool by replacing the tool holder with a different original design angle. Therefore, in order to meet more cutting requirements, the number of spare tools must be increased to increase the cost. In addition, the available angles of the existing standard turning tools are limited, which cannot meet the requirements of actual use. Second, use the tool grinder to grind the turning tool with the corresponding angle according to the requirements. This method not only seriously affects production efficiency, but is only suitable for regrinding turning tools, and is difficult to apply to indexable turning tools which are increasingly widely used at present.

Utility model content

The utility model aims at the disadvantages of narrow adjustment range, high cost and cumbersome operation in the existing turning tool angle adjustment method, and provides a special turning tool holder, which can continuously adjust the rake angle of the turning tool within the range of plus or minus 30 degrees , Rear angle.

The technical scheme that the utility model solves its technical problem adopts is:

A turning tool angle-adjustable tool holder, including a tool seat, a rotating shaft and a pressing device, the rotating shaft passes through the interior of the tool seat, one end of the rotating shaft cooperates with one side of the tool seat through a clamping device, and the other end is fixed by a flange On the other side of the knife seat, a groove is arranged on the rotating shaft.

The groove is matched with the turning tool, and the turning tool is pressed into the groove of the rotating shaft by the pressing device.

A horizontal through hole is provided in the knife seat, the bottom of the through hole is a semi-cylindrical surface, and the rotating shaft is installed in the horizontal through hole, and the rotating shaft is coaxial with the through hole.

The groove is arranged axially on the rotating shaft, the width of the groove is greater than the width of the standard turning tool holder, one end of the groove reaches the end face of the rotating shaft provided with a flange, and the tail of the rotating shaft is provided with a thread.

The clamping device is a clamping nut.

The compression device is a compression screw.

The clamping nut cooperates with the thread at the tail of the rotating shaft, and a washer is provided at the joint with the outer surface of the tool holder.

The pressing screw passes through the vertical threaded hole on the upper surface of the tool seat to compress the turning tool.

The side wall of the knife seat is provided with a threaded hole, and the threaded hole cooperates with a set screw for fastening the rotating shaft.

The outer surface of the knife seat is provided with a scale value.

The utility model installs the tool handle of the standard turning tool in the groove of the rotating shaft, rotates the rotating shaft and determines the rotation angle according to the scale line marked in front of the tool seat. Rotate the set screw to fix the rotating shaft circumferentially in the horizontal through hole of the tool seat. Rotate the rotating shaft clamping nut so that the rotating shaft is axially fixed on the knife seat. Rotate the turning tool hold-down screw to fix the turning tool on the rotating shaft.

The beneficial effects of the utility model are: by rotating the rotating shaft, the tool bar of the turning tool is driven to rotate around the axis, thereby driving the tool head to rotate axially, and realizing the rapid and precise adjustment of the rake angle and back angle of the turning tool without changing or regrinding the turning tool . At the same time, the utility model uses some parts of the original square tool holder of the lathe, thereby simplifying the structure and reducing the cost.

Description of drawings

Fig. 1 is a perspective view of the structure of the utility model.

Fig. 2 is a top view of the utility model.

Fig. 3 is a partial cross-sectional view along line A-A of Fig. 2 .

Fig. 4 is a schematic diagram of the tool seat of the present invention.

Fig. 5 is a schematic diagram of the rotating shaft of the utility model.

Among the figure: 1, tool seat, 2, washer, 3, rotating shaft clamping nut, 4, rotating shaft, 5, set screw, 6, turning tool, 7, turning tool pressing screw.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

As shown in Figures 1-5, the utility model includes a tool seat 1, a rotating shaft 4, a rotating shaft clamping nut 3, a turning tool pressing screw 7, a turning tool 6, and a fastening screw 5. There is a vertical stepped hole in the center of the tool seat 1. , use the original tool holder locking handle of the machine tool to fix it on the small carriage of the lathe. There is a horizontal through hole on the left side of the knife seat 1, and the bottom of the horizontal through hole is a semi-cylindrical surface. The outer cylindrical surface of the rotating shaft 4 cooperates with the above-mentioned through hole and is coaxial with it, so the rotating shaft 4 can rotate around the center line of the horizontal through hole. The rotating shaft 4 axially opens a semi-closed groove, the width of the groove is greater than the width of the standard turning tool shank, one end of the groove reaches the end face of the rotating shaft 4 provided with a flange, the tail of the rotating shaft 4 is provided with threads, and the rotating shaft clamping nut 3 and The threads at the rear of the rotating shaft 4 cooperate, and a washer 2 is provided at the joint with the outer surface of the knife holder 1 . The flange structure at the front of the rotating shaft 4 realizes the axial positioning of the rotating shaft 4 by cooperating with the front of the tool seat 1 . Scale values are provided on the outer surface of the tool seat 1 that cooperates with the flange structure. After the rotating shaft is rotated to a predetermined angle according to the requirements of use, the set screw 5 on the side wall of the tool seat 1 is rotated to fix the rotating shaft 4 in the circumferential direction. Rotating the rotating shaft clamping nut 3 can axially fix the rotating shaft 4 in the tool seat. The turning tool 6 is installed in the axial rectangular groove of the rotating shaft 4, and the turning tool 6 is adjusted to a suitable axial position according to processing requirements, and the turning turning tool pressing screw 7 is fixed to the turning tool 6 on the tool holder. When needing to readjust turning tool 6 angles during use, need loosen turning tool hold down screw 7, rotating shaft clamping nut 3, set screw 5 successively, readjust rotating shaft 4, then clamp above-mentioned each parts successively and get final product. Since the tool seat 1 does not need to be disassembled and the turning tool 6 does not need to be replaced, the quick adjustment of the angle of the turning tool 6 is realized, which is convenient to use and saves the cost of the turning tool 6 .

Claims (10)

1. lathe tool angle adjustable knife rest, it is characterized in that: comprise tool rest, rotating shaft and hold down gag, tool rest inside is passed in described rotating shaft, and an end of rotating shaft coordinates with tool rest one side by clamping device, the other end is fixed on the tool rest another side by flange, and rotating shaft is provided with groove.

2. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: described groove coordinates with lathe tool, and lathe tool is pressed in the groove of rotating shaft by hold down gag.

3. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: be provided with horizontal through hole in described tool rest, via bottoms is semi-cylindrical, and rotating shaft is arranged in horizontal through hole, and rotating shaft is coaxial with described through hole.

4. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: described groove is axial setting in rotating shaft, the width of groove is greater than the width of standard vehicle handle of a knife, and an end of groove arrives the end face that rotating shaft is provided with flange, and the afterbody of rotating shaft is provided with screw thread.

5. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: described clamping device is binding nut.

6. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: described hold down gag is housing screw.

7. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: the sidewall of described tool rest is provided with screwed hole, and described screwed hole coordinates with holding screw.

8. a kind of lathe tool angle adjustable knife rest as claimed in claim 5 is characterized in that: the threaded engagement of described binding nut and rotating shaft afterbody, and binding nut and tool rest outer surface cooperation place are provided with packing ring.

9. a kind of lathe tool angle adjustable knife rest as claimed in claim 6, it is characterized in that: described housing screw passes the perpendicular screwed hole of the upper surface of tool rest.

10. a kind of lathe tool angle adjustable knife rest as claimed in claim 1, it is characterized in that: described tool rest outer surface is provided with scale value.

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