CN216370212U

CN216370212U - Back-pull type blade

Info

Publication number: CN216370212U
Application number: CN202123265655.6U
Authority: CN
Inventors: 饶荣乐; 翁鑫
Original assignee: Wuxi Simika Precision Technology Co ltd
Current assignee: Wuxi Simika Precision Technology Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-26
Anticipated expiration: 2031-12-23

Abstract

The utility model belongs to the technical field of blades, and particularly relates to a backward-pulling type blade, which comprises a cutter bar and a blade, wherein a positioning pin is fixedly connected to the cutter bar, an installation block is slidably connected to the outer part of the positioning pin, the blade is arranged at the top of the installation block, the blade is in contact with the cutter bar, a clamping block is in contact with the outer surface of the installation block, a bolt is slidably connected to the clamping block, and a threaded hole is formed in the positioning pin. According to the utility model, the positioning pin is designed on the cutter bar and matched with the mounting block at the bottom of the blade, and then the clamping block, the bolt, the threaded hole, the sleeve, the guide rod, the top block, the limiting ring, the spring, the limiting pin, the limiting hole and other components are designed on the basis, so that after the blade and the cutter bar are mounted together, the bolt and the threads of the threaded hole are connected more tightly by using the elasticity of the spring, the bolt is prevented from loosening, and the blade is further mounted on the cutter bar more stably.

Description

Back-pull type blade

Technical Field

The utility model relates to the technical field of blades, in particular to a back-pull type blade.

Background

The back-pull type blade is a turning tool and is one of main parts of machine tool machining parts. However, after the conventional blade is fixedly installed with the bolt for the cutter bar, the bolt is easy to loosen, so that the installation of the blade is unstable, and the use is influenced. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a back-pull type blade, which solves the problem that after the existing blade is fixedly installed with a cutter bar through a bolt, the bolt is easy to loosen, the installation of the blade is unstable, and the use is influenced.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a back-pull type blade, includes cutter arbor and blade, fixedly connected with locating pin on the cutter arbor, the outside sliding connection of locating pin has the installation piece, the top of installation piece is provided with the blade, blade and cutter arbor contact, the surface contact of installation piece has the fixture block, sliding connection has the bolt in the fixture block, the screw hole has been seted up in the locating pin, threaded hole has the bolt through threaded connection, the downthehole fixedly connected with sleeve of screw, sliding connection has the guide arm in the sleeve, fixedly connected with kicking block on the guide arm, kicking block and bolt contact, the spring has been cup jointed to the outside of guide arm.

Preferably, a limiting ring is connected in the sleeve in a sliding manner and is fixedly connected with the guide rod.

Preferably, one end of the spring is fixedly connected with a limiting ring, and the other end of the spring is fixedly connected to the inner surface of the sleeve.

Preferably, the mounting block is provided with two symmetrically distributed limiting holes, each limiting hole is connected with a limiting pin in a sliding manner, and the limiting pins are fixedly connected with the clamping blocks.

Preferably, the fixture block is in a square block shape and is in contact with the cutter rod.

Preferably, the mounting block is in a rectangular block shape, and the mounting block is in contact with the cutter bar.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the positioning pin is designed on the cutter bar and matched with the mounting block at the bottom of the blade, and then the clamping block, the bolt, the threaded hole, the sleeve, the guide rod, the top block, the limiting ring, the spring, the limiting pin, the limiting hole and other components are designed on the basis, so that after the blade and the cutter bar are mounted together, the bolt and the threads of the threaded hole are connected more tightly by using the elasticity of the spring, the bolt is prevented from loosening, and the blade is further mounted on the cutter bar more stably.

Drawings

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

FIG. 2 is an enlarged view of the portion A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the structure of part B of fig. 1 according to the present invention.

In the figure: 1. a cutter bar; 2. positioning pins; 3. mounting blocks; 4. a blade; 5. a clamping block; 6. a bolt; 7. a threaded hole; 8. a sleeve; 9. a guide bar; 10. a top block; 11. a limiting ring; 12. a spring; 13. a spacing pin; 14. and a limiting hole.

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, a back-pull type blade comprises a cutter bar 1 and a blade 4, wherein a positioning pin 2 is fixedly connected to the cutter bar 1, an installation block 3 is slidably connected to the outside of the positioning pin 2, the blade 4 is arranged at the top of the installation block 3, the blade 4 is in contact with the cutter bar 1, a fixture block 5 is in contact with the outer surface of the installation block 3, a bolt 6 is slidably connected to the fixture block 5, a threaded hole 7 is formed in the positioning pin 2, the bolt 6 is connected to the threaded hole 7 through a thread, a sleeve 8 is fixedly connected to the threaded hole 7, a guide rod 9 is slidably connected to the sleeve 8, a top block 10 is fixedly connected to the guide rod 9, the top block 10 is in contact with the bolt 6, a protrusion is arranged on the top block 10, and is matched with a groove at the end of the bolt 6, can carry on spacingly to bolt 6, make it be difficult to rotate under no exogenic action to make bolt 6 install more stable, spring 12 has been cup jointed to the outside of guide arm 9.

Referring to fig. 2, a limiting ring 11 is slidably connected in the sleeve 8, and the limiting ring 11 is fixedly connected with the guide rod 9. The guide rod 9 is limited by the design of the limiting ring 11.

Referring to fig. 2, one end of the spring 12 is fixedly connected to the limiting ring 11, and the other end of the spring 12 is fixedly connected to the inner surface of the sleeve 8. Due to the design of the spring 12, the elastic force finally acts on the bolt 6, so that the bolt 6 is connected with the thread of the threaded hole 7 more tightly

Referring to fig. 3, the mounting block 3 is provided with two symmetrically distributed limiting holes 14, each limiting hole 14 is slidably connected with a limiting pin 13, and the limiting pin 13 is fixedly connected with the fixture block 5. Through the design of the limiting hole 14, the limiting pin 13 is matched, and the fixture block 5 is positioned.

Referring to fig. 1, the latch 5 is a square block, and the latch 5 contacts with the knife bar 1. Through the design of fixture block 5, have limiting displacement to installation piece 3.

Referring to fig. 1, the mounting block 3 is rectangular block-shaped, and the mounting block 3 contacts the tool bar 1. Through the design of installation piece 3, with locating pin 2 cooperation, be convenient for the location of blade 4 on cutter arbor 1.

The specific implementation process of the utility model is as follows: when the tool is used, the mounting block 3 at the bottom of the blade 4 is sleeved outside the positioning pin 2 of the tool bar 1, then the fixture block 5 is attached to the surface of the mounting block 3, the limiting pin 13 on the fixture block 5 is inserted into the limiting hole 14 of the mounting block 3, then the bolt 6 penetrates through the fixture block 5 and then enters the threaded hole 7 of the positioning pin 2 in a threaded manner, along with the continuous entering of the bolt 6 in the threaded hole 7, the bolt 6 contacts and drives the ejector block 10 to move, as the ejector block 10 is provided with the bulge which is matched with the end groove of the bolt 6, the bolt 6 can be limited, so that the bolt 6 is difficult to rotate under the no external force action, the bolt 6 is more stably mounted, and the guide rod 9 is driven to slide in the sleeve 8 when the ejector block 10 moves, the guide rod 9 drives the limiting ring 11 to move and stretches the spring 12 while sliding, and the elasticity of the spring 12 finally acts on the bolt 6, make inseparabler connection between the screw thread of bolt 6 and screw hole 7, further prevent not hard up of bolt 6, and then make the installation of blade 4 on cutter arbor 1 more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A back-pull blade comprising a blade bar (1) and a blade (4), characterized in that: fixedly connected with locating pin (2) on cutter arbor (1), the outside sliding connection of locating pin (2) has installation piece (3), the top of installation piece (3) is provided with blade (4), blade (4) and cutter arbor (1) contact, the surface contact of installation piece (3) has fixture block (5), sliding connection has bolt (6) in fixture block (5), threaded hole (7) have been seted up in locating pin (2), there is bolt (6) through threaded connection in threaded hole (7), fixedly connected with sleeve (8) in threaded hole (7), sliding connection has guide arm (9) in sleeve (8), fixedly connected with kicking block (10) on guide arm (9), kicking block (10) and bolt (6) contact, spring (12) have been cup jointed to the outside of guide arm (9).

2. A backdraw blade according to claim 1, wherein: the limiting ring (11) is connected to the sleeve (8) in a sliding mode, and the limiting ring (11) is fixedly connected with the guide rod (9).

3. A backdraw blade according to claim 1, wherein: one end of the spring (12) is fixedly connected with a limiting ring (11), and the other end of the spring (12) is fixedly connected to the inner surface of the sleeve (8).

4. A backdraw blade according to claim 1, wherein: two limiting holes (14) which are symmetrically distributed are formed in the mounting block (3), each limiting hole (14) is connected with a limiting pin (13) in a sliding mode, and the limiting pins (13) are fixedly connected with the clamping blocks (5).

5. A backdraw blade according to claim 1, wherein: the fixture block (5) is in a square block shape, and the fixture block (5) is in contact with the cutter bar (1).

6. A backdraw blade according to claim 1, wherein: the mounting block (3) is rectangular block-shaped, and the mounting block (3) is in contact with the cutter bar (1).