CN216138121U

CN216138121U - Carbide becomes mould sword is used in protection ring processing

Info

Publication number: CN216138121U
Application number: CN202121943704.4U
Authority: CN
Inventors: 周益锋
Original assignee: Changzhou Boyu Cnc Tool Co ltd
Current assignee: Changzhou Boyu Cnc Tool Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-29
Anticipated expiration: 2031-08-16

Abstract

The utility model belongs to the technical field of precision machining cutters, and particularly relates to a hard alloy forming cutter for machining a protection ring, which comprises a cutter handle, a rhombic cutter head and a bolt, wherein the top surface of the cutter handle is provided with a cutter groove, and the inner wall of the cutter groove is provided with an elastic positioning component; two positioning blocks which are symmetrically distributed are fixed on the inner wall of the cutter groove, and the opposite surfaces of the positioning blocks are inclined surfaces matched with the outer wall of the rhombic cutter head; a pre-fixing component corresponding to the rhombic tool bit is arranged on the top surface of the tool handle; according to the forming cutter, the positioning block and the elastic positioning component are arranged, so that the installation of the diamond-shaped cutter head can be quickly positioned and limited, the installation stability and the installation position reliability of the diamond-shaped cutter head are improved, the machining precision is favorably improved, and the diamond-shaped cutter head is conveniently calibrated after deviation is generated; due to the arrangement of the pre-fixing assembly, the installation of the diamond-shaped cutter head is further facilitated, and meanwhile, the installation stability of the diamond-shaped cutter head is further improved.

Description

Carbide becomes mould sword is used in protection ring processing

Technical Field

The utility model belongs to the technical field of precision machining cutters, and particularly relates to a hard alloy forming cutter for machining a protection ring.

Background

The precision machining, the machining precision is 10-0.1 micron, the surface roughness is under 0.1 micron processing, the common processing method is diamond turning, diamond boring, honing, grinding, super finishing, abrasive belt grinding and mirror surface grinding, etc., diamond turning and diamond boring are all cutting by polycrystalline diamond cutter, honing is to finish the hole mainly by using the oilstone (also called honing bar) inlaid on the honing head, grinding is to finish the processing surface by using the abrasive grain coated or pressed on the grinding tool, through the relative motion of the grinding tool and the workpiece under certain pressure.

The protective ring is a fitting commonly used in the oil pipe thread industry, and the main purpose of the protective ring is to protect the thread parts of oil pipes, casings and couplings from deformation caused by rusting or collision.

The forming turning tool is a special tool for processing the forming surface of the revolving body and is also a common tool for processing the protection ring, and the shape of the cutting edge of the forming turning tool is designed according to the outline of a workpiece.

When the traditional forming cutter is used, the traditional forming cutter is usually directly fixed on a cutter handle by utilizing a bolt, particularly, the forming cutter is directed at a rhombic cutter head, the reliability of the installation position of the cutter head is difficult to ensure in the installation process, if cutter grooves with the same shape and size are formed, the processing difficulty is high, the shape of the cutter grooves after long-time use is inevitably changed due to abrasion, and the processing precision is influenced in the later-period use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the hard alloy forming cutter for machining the protection ring, which has the characteristics of convenience in use and high machining precision.

In order to achieve the purpose, the utility model provides the following technical scheme: a hard alloy forming cutter for machining a protection ring comprises a cutter handle, a rhombic cutter head and a bolt, wherein a cutter groove is formed in the top surface of the cutter handle, the rhombic cutter head is fixed in the cutter groove through the bolt, two groups of elastic positioning assemblies which are symmetrically distributed are arranged on the inner wall of the cutter groove, and each elastic positioning assembly comprises a square rod which is elastically arranged on the inner wall of the cutter groove and a roller which is fixed at the end part of the square rod; two positioning blocks which are symmetrically distributed are fixed on the inner wall of the cutter groove, and the opposite surfaces of the positioning blocks are inclined surfaces matched with the outer wall of the rhombic cutter head; and a pre-fixing component corresponding to the diamond-shaped cutter head is arranged on the top surface of the cutter handle.

As a preferred technical scheme of the utility model, the tool further comprises a first return spring, a U-shaped mounting piece is fixed on the inner wall of the tool groove, a connecting groove located on the inner side of the U-shaped mounting piece is further formed in the inner wall of the tool groove, and one end, away from the roller, of the square rod penetrates through the U-shaped mounting piece and is then embedded into the connecting groove; a first limiting ring is fixed on the square rod, and the first return spring is sleeved on the square rod and is positioned between the inner wall of the cutter groove and the first limiting ring.

As a preferable technical solution of the present invention, two guide rods are symmetrically arranged on the back surface of the roller, and the end of each guide rod penetrates through the U-shaped mounting piece.

As a preferred technical scheme of the utility model, the pre-fixing assembly comprises a Z-shaped mounting plate, a pre-fixing pin and a second return spring, the Z-shaped mounting plate is fixed on the top surface of the handle, a pre-fixing hole capable of accommodating the pre-fixing pin is formed in the diamond-shaped tool bit, the bottom end of the pre-fixing pin penetrates through the Z-shaped mounting plate and then is embedded into the pre-fixing hole, a second limit ring is fixed on the pre-fixing pin, and the second return spring is sleeved on the pre-fixing pin and is positioned between the bottom surface of the Z-shaped mounting plate and the second limit ring.

In a preferred embodiment of the present invention, a pull ring is fixed to a tip of the preliminary fixing pin.

Compared with the prior art, the utility model has the beneficial effects that: according to the forming cutter, the positioning block and the elastic positioning component are arranged, so that the installation of the diamond-shaped cutter head can be quickly positioned and limited, the installation stability and the installation position reliability of the diamond-shaped cutter head are improved, the machining precision is favorably improved, and the diamond-shaped cutter head is conveniently calibrated after deviation is generated; due to the arrangement of the pre-fixing assembly, the installation of the diamond-shaped cutter head is further facilitated, and meanwhile, the installation stability of the diamond-shaped cutter head is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic axial side view of the elastic positioning assembly of the present invention;

FIG. 3 is a schematic view of the axial side of the pre-fixing assembly of the present invention;

in the figure: 1. a knife handle; 2. a diamond-shaped cutter head; 3. a cutter groove; 4. a bolt; 5. positioning blocks; 6. an elastic positioning component; 7. a pre-fixing component; 8. a U-shaped mounting plate; 9. a square bar; 10. a roller; 11. a first limit ring; 12. a first return spring; 13. connecting grooves; 14. a guide bar; 15. a Z-shaped mounting plate; 16. pre-fixing pins; 17. a pull ring; 18. a second return spring; 19. a second limiting ring; 20. and (4) pre-fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a hard alloy forming cutter for processing a protection ring comprises a cutter handle 1, a rhombic cutter head 2 and a bolt 4, wherein a cutter groove 3 is formed in the top surface of the cutter handle 1, the rhombic cutter head 2 is fixed in the cutter groove 3 by the bolt 4, two groups of elastic positioning components 6 which are symmetrically distributed are arranged on the inner wall of the cutter groove 3, and each elastic positioning component 6 comprises a square rod 9 which is elastically arranged on the inner wall of the cutter groove 3 and a roller 10 which is fixed at the end part of the square rod 9; two positioning blocks 5 which are symmetrically distributed are fixed on the inner wall of the cutter groove 3, and the opposite surfaces of the positioning blocks 5 are inclined surfaces matched with the outer wall of the rhombic cutter head 2; install at the top surface of handle of a knife 1 and fix subassembly 7 in advance corresponding to rhombus tool bit 2, when using, arrange rhombus tool bit 2 in sword groove 3, utilize two locating pieces 5 to fix a position rhombus tool bit 2's installation, push rhombus tool bit 2 backward from two locating pieces 5, touch gyro wheel 10 when rhombus tool bit 2's inclined plane, gyro wheel 10 rolls, because square bar 9 elastic mounting is in sword groove 3, square bar 9 can apply elasticity to the gyro wheel 10 of both sides, make rhombus tool bit 2 automatic alignment, until rhombus tool bit 2 supports the terminal surface of locating piece 5, utilize and fix subassembly 7 in advance to rhombus tool bit 2, it can in sword groove 3 to utilize bolt 4 to fix rhombus tool bit 2 at last.

Specifically, as shown in fig. 1 and fig. 2, in the present embodiment, a first return spring 12 is further included, a U-shaped mounting piece 8 is fixed on an inner wall of the knife slot 3, a connecting groove 13 located inside the U-shaped mounting piece 8 is further formed on the inner wall of the knife slot 3, and one end of the square rod 9, which is far away from the roller 10, penetrates through the U-shaped mounting piece 8 and is then embedded into the connecting groove 13; a limiting ring 11 is fixed on the square rod 9, a return spring 12 is sleeved on the square rod 9 and located between the inner wall of the cutter groove 3 and the limiting ring 11, the return spring 12 is matched with the limiting ring 11 to apply elastic force to the square rod 9, the roller 10 is applied with elastic force through the square rod 9, and the roller 10 on two sides is used for calibrating the diamond-shaped cutter head 2 on the inner side.

Specifically, according to fig. 1 and fig. 2, in the present embodiment, two guide rods 14 are symmetrically arranged on the back surface of the roller 10, and the end of each guide rod 14 penetrates through the U-shaped mounting piece 8, so as to ensure the stability of the roller 10.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the pre-fixing assembly 7 includes a Z-shaped mounting plate 15, a pre-fixing pin 16 and a second return spring 18, the Z-shaped mounting plate 15 is fixed on the top surface of the tool holder 1, a pre-fixing hole 20 for accommodating the pre-fixing pin 16 is formed in the diamond-shaped tool bit 2, the bottom end of the pre-fixing pin 16 penetrates through the Z-shaped mounting plate 15 and then is embedded into the pre-fixing hole 20, a second limit ring 19 is fixed on the pre-fixing pin 16, the second return spring 18 is sleeved on the pre-fixing pin 16 and is located between the bottom surface of the Z-shaped mounting plate 15 and the second limit ring 19, when the diamond-shaped tool bit 2 is pushed backward from two positioning blocks 5, the pre-fixing pin 16 is pulled upward, the second limit ring 19 is utilized to press the second return spring 18, when the diamond-shaped tool bit 2 is pushed in, the pre-fixing pin 16 is released, and the pre-fixing pin 16 is returned under the elastic force of the second return spring 18, the bottom end of the pre-fixing pin 16 is embedded into the pre-fixing hole 20, so that the diamond-shaped cutter head 2 is pre-fixed.

Specifically, according to fig. 1 and 3, in the embodiment, the pull ring 17 is fixed at the top end of the pre-fixing pin 16, and the pre-fixing pin 16 is pulled by the pull ring 17, which is more convenient and labor-saving.

The working principle and the using process of the utility model are as follows: when the forming cutter is used, the diamond cutter head 2 is placed in the cutter groove 3, the two positioning blocks 5 are used for positioning the installation of the diamond cutter head 2, the diamond cutter head 2 is pushed into the two positioning blocks 5 backwards, the pre-fixing pin 16 is pulled upwards at the same time, the second limiting ring 19 is used for pressing the second reset spring 18, after the pushing of the diamond cutter head 2 is completed, the pre-fixing pin 16 is loosened, the pre-fixing pin 16 is reset under the elastic force of the second reset spring 18, and the bottom end of the pre-fixing pin 16 is embedded into the pre-fixing hole 20, so that the pre-fixing of the diamond cutter head 2 is realized;

in addition, at the in-process of pushing backward the rhombus tool bit 2 from two locating pieces 5, the gyro wheel 10 is touched in the inclined plane of rhombus tool bit 2, gyro wheel 10 rolls, because the existence of reset spring 12, the square bar 9 can apply elasticity to the gyro wheel 10 of both sides for rhombus tool bit 2 is automatic alignment, until rhombus tool bit 2 supports the terminal surface of locating piece 5, utilize in advance fixed subassembly 7 to carry out the pre-fixing to rhombus tool bit 2, utilize bolt 4 with rhombus tool bit 2 to fix in the sword groove 3 at last can.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a carbide becomes cutting tool for guard ring processing, includes handle of a knife (1), rhombus tool bit (2) and bolt (4) sword groove (3) have been seted up to the top surface of handle of a knife (1), rhombus tool bit (2) utilize bolt (4) to fix in sword groove (3), its characterized in that: two groups of elastic positioning components (6) which are symmetrically distributed are arranged on the inner wall of the cutter groove (3), and each elastic positioning component (6) comprises a square rod (9) which is elastically arranged on the inner wall of the cutter groove (3) and a roller (10) which is fixed at the end part of the square rod (9); two positioning blocks (5) which are symmetrically distributed are fixed on the inner wall of the cutter groove (3), and the opposite surface of each positioning block (5) is an inclined surface matched with the outer wall of the rhombic cutter head (2); the top surface of the knife handle (1) is provided with a pre-fixing component (7) corresponding to the diamond-shaped knife head (2).

2. The hard alloy forming tool for machining a protective ring according to claim 1, wherein: the tool comprises a tool groove (3), and is characterized by further comprising a first return spring (12), wherein a U-shaped mounting piece (8) is fixed on the inner wall of the tool groove (3), a connecting groove (13) located on the inner side of the U-shaped mounting piece (8) is further formed in the inner wall of the tool groove (3), and one end, far away from the roller (10), of the square rod (9) penetrates through the U-shaped mounting piece (8) and then is embedded into the connecting groove (13); a first limiting ring (11) is fixed on the square rod (9), and the first return spring (12) is sleeved on the square rod (9) and is located between the inner wall of the cutter groove (3) and the first limiting ring (11).

3. The hard alloy forming tool for machining a protective ring according to claim 2, wherein: the back of the roller (10) is provided with two symmetrically distributed guide rods (14), and the end parts of the guide rods (14) penetrate through the U-shaped mounting piece (8).

4. The hard alloy forming tool for machining a protective ring according to claim 1, wherein: pre-fixing assembly (7) includes Z type mounting panel (15), pre-fixing pin (16) and No. two reset spring (18), Z type mounting panel (15) are fixed handle of a knife (1) top surface seted up on rhombus tool bit (2) and can be held pre-fixing hole (20) of pre-fixing pin (16), the bottom of pre-fixing pin (16) is run through imbed behind Z type mounting panel (15) in pre-fixing hole (20) be fixed with No. two spacing rings (19) on pre-fixing pin (16), No. two reset spring (18) cup joint on pre-fixing pin (16) and be in the bottom surface of Z type mounting panel (15) with between No. two spacing rings (19).

5. The carbide forming tool for machining a protective ring according to claim 4, wherein: and a pull ring (17) is fixed at the top end of the pre-fixing pin (16).