CN220361881U

CN220361881U - Rotary stamping knife handle

Info

Publication number: CN220361881U
Application number: CN202322297086.6U
Authority: CN
Inventors: 赵信冬; 赵逸洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-01-19
Anticipated expiration: 2033-08-24

Abstract

The utility model belongs to the technical field of cutters, and particularly relates to a rotary stamping cutter handle; comprising the following steps: one end of the cutter shell is a closed end, and the other end is an open end; a handle connected to the closed end of the cutter housing; the cutter head assembly comprises a fixing seat and a cutter head which are detachably connected, and the fixing seat is rotatably arranged in the cutter shell; the cutter head assembly is obliquely arranged in the cutter shell, and the center of the punching end of the cutter head is positioned on the central axis of the handle; the cutter shell is internally provided with a first radial bearing and a second radial bearing which are sleeved on the periphery of the fixed seat and a thrust bearing which is sleeved on the periphery of the fixed seat and axially abuts against the cutter shell; has the advantages of compact structure and high molding precision.

Description

Rotary stamping knife handle

Technical Field

The utility model belongs to the technical field of cutters, and particularly relates to a rotary stamping cutter handle.

Background

The stamping tool is a processing tool with simple operation, is suitable for equipment such as a general lathe, a CNC automatic lathe, a processing center, a drilling machine and the like, is mainly used for processing hexagonal holes, square holes and the like, and can be used for processing polygonal holes required by forming by replacing a tool bit in a processing mode as disclosed in CN215545469U and mainly relying on the tool bit to rotate along with a workpiece under the action of axial extrusion force.

The whole and stalk portion of current punching press sword are coaxial setting, and during the punching press, required axial stamping force is big, causes polygon hole shaping effect relatively poor, and adopts single bearing to connect between tool bit and the stalk portion generally, and tool bit rotational positioning precision is low, causes the punching precision low.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a rotary stamping knife handle which has the advantages of compact structure and high forming precision.

A rotary stamped tool shank comprising:

one end of the cutter shell is a closed end, and the other end is an open end;

a handle connected to the closed end of the cutter housing;

the cutter head assembly comprises a fixing seat and a cutter head which are detachably connected, and the fixing seat is rotatably arranged in the cutter shell; the cutter head assembly is obliquely arranged in the cutter shell, and the center of the punching end of the cutter head is positioned on the central axis of the handle;

the cutter shell is internally provided with a first radial bearing, a second radial bearing and a thrust bearing, wherein the first radial bearing and the second radial bearing are sleeved on the periphery of the fixed seat, and the thrust bearing is sleeved on the periphery of the fixed seat and axially abuts against the cutter shell.

The fixing seat comprises a first shaft part, a diameter-expanding part and a second shaft part which are connected in sequence, the second shaft part is positioned near the opening end, the diameter-expanding part is provided with a mounting hole which axially penetrates through the second shaft part, the cutter head is mounted in the mounting hole, the first radial bearing and the thrust bearing are both mounted on the first shaft part, and the second radial bearing is mounted on the second shaft part.

The cutter is characterized by further comprising a fastening ring, wherein the fastening ring is arranged in the opening end of the cutter shell and axially abuts against the outer ring of the second radial bearing.

The fastening ring is in threaded connection with the cutter shell, and a limiting hole for screwing the fastening ring is formed in the outer end face of the fastening ring.

The diameter-expanding part is provided with a pin which is used for radially abutting against the cutter head.

And the cutter shell is provided with an opening corresponding to the pin.

The inclination angle X of the cutter head assembly is 1 degree.

The beneficial effects of the utility model are as follows:

1. the cutter head component is obliquely arranged relative to the handle, so that larger stamping force can be generated when the cutter head component rotates for stamping, and the stamping effect is better;

2. the cutter head component and the handle are reasonably and limitedly connected by adopting a radial bearing and a thrust bearing, so that the rotary stability is good, and the stamping precision is high;

3. the fixing base is of an inner-concealed structure, namely the fixing base is integrally positioned in the cutter shell, the overall structure is more compact, the overall length of the rotary punching cutter handle can be effectively shortened, the stability of the rotary punching cutter handle is guaranteed, and the punching precision is higher.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

fig. 2 is a schematic cross-sectional view of the present utility model.

The label in the figure is:

1. a cutter shell; 2. a handle; 3. a fixing seat; 4. a cutter head; 5. a first radial bearing; 6. a second radial bearing; 7. a thrust bearing; 8. a fastening ring; 9. a limiting hole; 10. a pin; 11. and (5) opening holes.

Description of the embodiments

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

A rotary stamped tool shank comprising:

the knife shell 1 has one end as a closed end and one end as an open end;

a handle 2 connected to the closed end of the cutter housing 1;

the cutter head assembly comprises a fixing seat 3 and a cutter head 4 which are detachably connected, and the fixing seat 3 is rotatably arranged in the cutter shell 1; the cutter head component is obliquely arranged in the cutter shell 1, and the center of the punching end of the cutter head 4 is positioned on the central axis of the handle 2;

wherein, the cutter shell 1 is internally provided with a first radial bearing 5 and a second radial bearing 6 which are sleeved on the periphery of the fixed seat 3 and a thrust bearing 7 which is sleeved on the periphery of the fixed seat 3 and axially props against the cutter shell 1.

The cutter shell 1 is internally provided with a cylindrical cavity structure, and the cutter head component is obliquely arranged, so that the cavity in the cutter shell 1 is obliquely arranged; the fixing seat 3 is used for fixedly mounting the cutter head 4 and is detachably connected with the cutter head 4, and the cutter head 4 can be independently replaced according to different processing requirements;

the fixed seat 3 is of an concealed structure, namely the fixed seat 3 is integrally positioned in the cutter shell 1, so that the whole structure is more compact, the whole length of the rotary punching cutter handle can be effectively shortened, the stability of the rotary punching cutter handle is ensured, and the punching precision is higher;

the center of the punching end of the cutter head 4 is positioned on the central axis of the handle 2, so that the punching end of the cutter head 4 and the handle 2 are coaxially arranged, and the cutter head assembly is of an inclined structure, so that the cutter head 4 can generate stronger axial impact force; the arrangement of the radial bearing and the thrust bearing 7 can ensure the rotation stability between the cutter head assembly and the handle 2, reduce the rotation resistance between the cutter head assembly and the handle 2, reduce the abrasion and prolong the service life.

Further, the fixing seat 3 comprises a first shaft part, an expanded diameter part and a second shaft part which are sequentially connected, the second shaft part is positioned near the opening end, the expanded diameter part is provided with a mounting hole which axially penetrates through the second shaft part, the cutter head 4 is mounted in the mounting hole, the first radial bearing 5 and the thrust bearing 7 are both mounted on the first shaft part, and the second radial bearing 6 is mounted on the second shaft part.

The outer diameter of the expanded diameter portion is larger than that of the first shaft portion and the second shaft portion, the rotation stability of the fixing seat 3 is ensured through the first radial bearing 5 and the second radial bearing 6, and the thrust bearing 7 is used for reducing the axial resistance.

Further, a fastening ring 8 is further included, the fastening ring 8 is mounted in the open end of the cutter housing 1, and the fastening ring 8 axially abuts against the outer ring of the second radial bearing 6.

The fastening ring 8 is used for axially limiting the components inside the cutter shell 1, namely, the first radial bearing 5, the second radial bearing 6, the fixed seat 3 and the thrust bearing 7 are axially limited, and the fastening ring 8 is positioned in the open end, so that the fastening ring can be prevented from extending outwards at the open end, and the whole structure is more compact.

Further, threaded connection between fastening ring 8 and the sword shell 1 makes things convenient for the installation of fastening ring 8 and dismantles, is equipped with the spacing hole 9 that is used for fastening ring 8 to revolve to twist on the outer terminal surface of fastening ring 8, and spacing hole 9 can be two of symmetry, makes things convenient for the operator to revolve with the help of the instrument to fastening ring 8 to twist.

Further, the diameter-expanding portion is provided with a pin 10 for radially abutting against the cutter head 4.

The fixed part can be provided with a threaded hole, the pin 10 is in threaded connection with the threaded hole, when the pin 10 is screwed, the inner end of the pin 10 is abutted against the handle part of the cutter head 4, and the fixed connection between the cutter head 4 and the fixed seat 3 is realized.

Further, the cutter housing 1 is provided with an opening 11 corresponding to the pin 10.

The position of the opening 11 corresponds to the position of the threaded hole on the fixing part, when the fixing part rotates to a proper position, the threaded hole is opposite to the opening 11, at this time, the disassembling and assembling pin 10 can be screwed by means of tools such as a screwdriver, and the tool bit 4 can be replaced on the premise of not disassembling the fastening ring 8.

Further, the inclination angle X of the cutter head assembly is 1 °.

As shown in the figure, the cutter head component is obliquely arranged; preferably, the inclination angle X between the central axis of the cutter head assembly and the central axis of the handle 2 is 1 degree, so that better stamping force can be generated, and the stamping effect is better.

The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A rotary stamping tool shank, comprising:

a knife shell (1), one end of which is a closed end and the other end of which is an open end;

a handle (2) connected to the closed end of the cutter shell (1);

the cutter head assembly comprises a fixing seat (3) and a cutter head (4) which are detachably connected, and the fixing seat (3) is rotatably arranged in the cutter shell (1); the cutter head assembly is obliquely arranged in the cutter shell (1), and the center of the punching end of the cutter head (4) is positioned on the central axis of the handle (2);

wherein, be equipped with in cutter shell (1) sleeve and locate first radial bearing (5) and second radial bearing (6) on fixing base (3) periphery and sleeve locate fixing base (3) periphery on and with thrust bearing (7) of cutter shell (1) axial conflict.

2. The rotary stamping tool shank according to claim 1, wherein the fixing seat (3) comprises a first shaft part, an expanded diameter part and a second shaft part which are sequentially connected, the second shaft part is positioned near the open end, the expanded diameter part is provided with a mounting hole which axially penetrates through the second shaft part, the tool bit (4) is mounted in the mounting hole, the first radial bearing (5) and the thrust bearing (7) are both mounted on the first shaft part, and the second radial bearing (6) is mounted on the second shaft part.

3. A rotary impact tool shank according to claim 2, further comprising a fastening ring (8), the fastening ring (8) being mounted in the open end of the tool housing (1), and the fastening ring (8) axially abutting the outer ring of the second radial bearing (6).

4. A rotary stamping tool shank according to claim 3, characterized in that the fastening ring (8) is in threaded connection with the tool housing (1), and the outer end surface of the fastening ring (8) is provided with a limiting hole (9) for screwing the fastening ring (8).

5. A rotary stamping tool shank according to claim 2, characterized in that the enlarged portion is provided with a pin (10) for radial abutment against the tool bit (4).

6. A rotary stamping tool shank according to claim 2, characterized in that the tool housing (1) is provided with openings (11) arranged in correspondence with the pins (10).

7. The rotary stamped tool shank of claim 1, wherein the tool bit assembly is angled at 1 °.