CN213531632U

CN213531632U - Precision machining cutter

Info

Publication number: CN213531632U
Application number: CN202022350620.1U
Authority: CN
Inventors: 郑波
Original assignee: Kunshan Ruidefeng Automation Equipment Co ltd
Current assignee: Kunshan Ruidefeng Automation Equipment Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to an accurate processing technology field especially relates to an accurate processing cutter, solves the too troublesome shortcoming of unstable and change tool bit of tool bit when the cutting of tool bit, including the knife rest, the inside sliding connection of knife rest has the tool bit, the dovetail has been seted up to the inside of knife rest, the outside fixedly connected with dovetail block of tool bit, the outside of dovetail block with the inside sliding connection of dovetail, the fixed cylinder that has cup jointed in inside of knife rest, the inside fixedly connected with baffle of fixed cylinder, the inside sliding connection of baffle has the guide arm, the outside sliding connection of guide arm has the spring, the lower extreme fixedly connected with fixture block of guide arm, the draw-in groove has been seted up to the inside of tool bit. The utility model discloses an add in the inside of knife rest and establish stopper, sloping block and supporting shoe isotructure, fix the tool bit from many azimuths, then through the outside of supporting shoe and sloping block between with the lug top at the dovetail piece, fix it.

Description

Precision machining cutter

Technical Field

The utility model relates to a precision finishing technical field especially relates to a precision finishing cutter.

Background

The 20 th century and the 60 th century developed a processing technology with extremely high precision in order to meet the needs of advanced technologies such as nuclear power, large-scale integrated circuits, lasers and aerospace. By the beginning of the 80 s, the highest processing dimensional precision can reach 10 nanometers, the surface roughness reaches 1 nanometer, the minimum processing dimension reaches 1 micrometer, and the progress is made toward the target of the nanometer processing dimensional precision. Ultra-precision machining on a nanometer scale is also known as nanotechnology. Ultra-precision machining is a developing interdisciplinary integration technique. The 20 th century, the 50 s to the 80 s, was the technological initiative. In the end of the 20 th century and the 50 th century, due to the requirement of advanced technical development of aerospace, national defense and the like, the United states has developed an ultra-precision machining technology, and developed a diamond cutter ultra-precision cutting-single-point diamond cutting technology, also called micro-inch technology, for machining large parts such as laser nuclear fusion reflectors, tactical missiles, spherical surfaces for manned and unmanned planes, and aspheric surfaces.

When the machine tool is used for carrying out precision cutting on a component, the joint of the tool bit and the tool rest is unstable, the tool bit is easy to shake, fine shaking can affect precision of precision machining, the precision is affected, the cut component is easy to scrap, when precision machining is carried out, the use of the tool bit is very strict, the tool bit is required to be frequently replaced, but the tool bit is of a multi-group threaded connection structure, the dismounting process is very complicated, and the working efficiency is affected. Therefore, improvements to existing structures are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the unstable shortcoming too troublesome with the change tool bit of tool bit when the cutting of tool bit, and the precision finishing cutter that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a precision machining tool comprises a tool rest, a tool bit is connected inside the tool rest in a sliding mode, a dovetail groove is formed inside the tool rest, the outer side of the tool bit is fixedly connected with a dovetail block, the outer side of the dovetail block is connected with the inner part of the dovetail groove in a sliding way, a fixed cylinder is fixedly sleeved in the tool rest, a partition plate is fixedly connected in the fixed cylinder, a guide rod is connected inside the clapboard in a sliding way, a spring is connected outside the guide rod in a sliding way, a clamping block is fixedly connected at the lower end of the guide rod, the inside of the cutter head is provided with a clamping groove, the inside of the clamping groove is clamped with the outer side of the clamping block, the inside of the knife rest is connected with a limiting block through a bolt, the inside of the knife rest is provided with a fixing groove, the inside fixedly connected with sloping block of fixed slot, the outside sliding connection of sloping block has the supporting shoe, the outside fixedly connected with lug of supporting shoe.

Preferably, the upper end of the spring is fixedly connected with the lower end of the partition plate, and the lower end of the spring is fixedly connected with the upper end of the clamping block.

Preferably, the inside of the fixed cylinder is fixedly connected with a limiting ring, and the inside of the limiting ring is connected with the outer side of the clamping block in a sliding manner.

Preferably, the inside of the right end of the cutter head is provided with a positioning hole, the inside of the cutter rest is fixedly connected with a positioning rod, and the inside of the positioning hole is in sliding connection with the outer side of the positioning rod.

Preferably, the outer side of the convex block is connected with the outer side of the dovetail block in a sliding mode, and the top end of the convex block is in an arc shape.

Preferably, the inside sliding connection of the right end of the tool rest has a screw rod, and the outside of the screw rod is in threaded connection with the inside of the limiting block.

The utility model has the advantages that: the utility model fixes the tool bit from multiple directions by adding the structure of the limit block, the sloping block and the supporting block in the tool rest, and then the lug is supported on the outer side of the dovetail block by the interference fit between the supporting block and the sloping block to fix the dovetail block;

through adding in the inside of knife rest and establishing fixed cylinder, draw-in groove and fixture block isotructure, when needs change the tool bit, can stimulate the guide arm and shift out the inside of draw-in groove with the fixture block, then can shift out the inside of knife rest with the tool bit to can carry out quick replacement to the tool bit.

Drawings

Fig. 1 is a schematic structural view of a precision machining tool according to the present invention;

fig. 2 is a left side view of fig. 1 of a precision machining tool according to the present invention;

fig. 3 is a top view of fig. 1 of a precision machining tool according to the present invention;

fig. 4 is an enlarged view of the part a structure of fig. 1 of the precision machining tool according to the present invention.

In the figure: 1. a tool holder; 2. a cutter head; 3. a dovetail groove; 4. a dovetail block; 5. a fixed cylinder; 7. a partition plate; 8. a guide bar; 9. a spring; 10. a clamping block; 11. a card slot; 12. a limiting ring; 13. positioning holes; 14. positioning a rod; 15. a limiting block; 16. a screw; 17. fixing grooves; 18. a sloping block; 19. a support block; 20. and (4) a bump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a precision machining tool comprises a tool rest 1, a tool bit 2 is slidably connected inside the tool rest 1, a dovetail groove 3 is formed inside the tool rest 1, a dovetail block 4 is fixedly connected to the outer side of the tool bit 2, the outer side of the dovetail block 4 is slidably connected with the inside of the dovetail groove 3, a fixed cylinder 5 is fixedly sleeved inside the tool rest 1, a partition plate 7 is fixedly connected inside the fixed cylinder 5, a guide rod 8 is slidably connected inside the partition plate 7, a spring 9 is slidably connected outside the guide rod 8, a clamping block 10 is fixedly connected to the lower end of the guide rod 8, a clamping groove 11 is formed inside the tool rest 2, the inside of the clamping groove 11 is clamped with the outer side of the clamping block 10, a limiting block 15 is connected inside the tool rest 1 through a bolt, a fixing groove 17 is formed inside the tool rest 1, an inclined block 18 is fixedly, the supporting block 19 and the inclined block 18 are in interference fit, the inclined block 18 provides upward supporting force for the supporting block 19, and a lug 20 is fixedly connected to the outer side of the supporting block 19.

The utility model fixes the tool bit 2 from multiple directions by adding the structure of the limit block, the inclined block 18 and the support block 19 in the tool rest 1, and then the lug 20 is supported on the outer side of the dovetail block 4 by the interference fit between the support block 19 and the inclined block 18 to fix the tool bit 2;

through adding in knife rest 1's inside and establishing fixed cylinder 5, draw-in groove 11 and fixture block 10 isotructure, when needing to be changed tool bit 2, can stimulate guide arm 8 and shift out the inside of draw-in groove 11 with fixture block 10, then can shift out the inside of knife rest 1 with tool bit 2 to can carry out quick replacement to tool bit 2.

In this embodiment, the upper end of spring 9 and the lower extreme fixed connection of baffle 7, the lower extreme of spring 9 and the upper end fixed connection of fixture block 10, spring 9 can make fixture block 10 contact slot 11 constantly.

In this embodiment, the inside fixedly connected with spacing ring 12 of a fixed section of thick bamboo 5, the inside of spacing ring 12 and the outside sliding connection of fixture block 10, spacing ring 12 can prevent that fixture block 10 from popping out a fixed section of thick bamboo 5.

In this embodiment, the positioning hole 13 has been seted up to the inside of the right-hand member of tool bit 2, and the inside fixedly connected with locating lever 14 of knife rest 1, the inside of positioning hole 13 and the outside sliding connection of locating lever 14, positioning hole 13 and the cooperation of locating lever 14 can make the end of tool bit 2 can't produce and rock.

In this embodiment, the outside of lug 20 and the outside sliding connection of forked tail piece 4, the top of lug 20 is the circular arc type, and the circular arc type design of lug 20 can prevent to take place when the tool changing, and tool bit 2 is blocked.

In this embodiment, the inside sliding connection of the right end of the tool rest 1 has a screw rod 16, the outside of the screw rod 16 is in threaded connection with the inside of the limiting block 15, and the screw rod 16 is used for connecting the fixed limiting block 15.

The utility model discloses the concrete implementation process as follows: when tool bit 2 needs to be replaced, guide rod 8 can be pulled, guide rod 8 drives fixture block 10, fixture block 10 moves out of the inside of clamping groove 11, then tool bit 2 is replaced after being moved out of the inside of tool holder 1, dovetail block 4 at the upper end of new tool bit 2 slides into the inside of tool holder 1 along the inside of dovetail groove 3, when clamping groove 11 reaches the lower end of fixture block 10, fixture block 10 is clamped into the inside of clamping groove 11 under the elastic action of spring 9, tool bit 2 is under the extrusion force action of limiting block 15 when tool bit 2 is used for processing a workpiece, tool bit 2 cannot continue to move towards the inside of tool holder 1, under the support of supporting block 19 and protruding block 20, so that tool bit 2 cannot rock.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The precision machining cutter comprises a cutter rest (1) and is characterized in that a cutter head (2) is connected to the interior of the cutter rest (1) in a sliding manner, a dovetail groove (3) is formed in the interior of the cutter rest (1), a dovetail block (4) is fixedly connected to the outer side of the cutter head (2), the outer side of the dovetail block (4) is connected with the interior of the dovetail groove (3) in a sliding manner, a fixed cylinder (5) is fixedly sleeved on the interior of the cutter rest (1), a partition plate (7) is fixedly connected to the interior of the fixed cylinder (5), a guide rod (8) is connected to the interior of the partition plate (7) in a sliding manner, a spring (9) is connected to the outer side of the guide rod (8) in a sliding manner, a clamping block (10) is fixedly connected to the lower end of the guide rod (8), a clamping groove (11) is formed in the interior of the cutter head (2, the tool rest is characterized in that a limiting block (15) is connected to the inside of the tool rest (1) through a bolt, a fixing groove (17) is formed in the tool rest (1), an inclined block (18) is fixedly connected to the inside of the fixing groove (17), a supporting block (19) is connected to the outer side of the inclined block (18) in a sliding mode, and a protruding block (20) is fixedly connected to the outer side of the supporting block (19).

2. A precision machining tool according to claim 1, characterized in that the upper end of the spring (9) is fixedly connected to the lower end of the spacer (7), and the lower end of the spring (9) is fixedly connected to the upper end of the block (10).

3. The precision machining tool according to claim 1, characterized in that a limiting ring (12) is fixedly connected to the inside of the fixed cylinder (5), and the inside of the limiting ring (12) is slidably connected to the outside of the clamping block (10).

4. The precision machining tool according to claim 1, wherein a positioning hole (13) is formed in the right end of the tool bit (2), a positioning rod (14) is fixedly connected to the inside of the tool rest (1), and the inside of the positioning hole (13) is slidably connected to the outer side of the positioning rod (14).

5. A precision machining tool according to claim 1, characterized in that the outer side of the cam (20) is in sliding connection with the outer side of the dovetail block (4), the tip of the cam (20) being of circular arc shape.

6. A precision machining tool according to claim 1, characterized in that a screw (16) is slidably connected to the inside of the right end of the tool holder (1), and the outside of the screw (16) is threadedly connected to the inside of the stopper (15).