CN210046014U

CN210046014U - Lathe tool shock absorber for numerical control lathe

Info

Publication number: CN210046014U
Application number: CN201920974918.4U
Authority: CN
Inventors: 温从字; 史治强; 刘军
Original assignee: Maanshan Juli Technology Co Ltd
Current assignee: Maanshan Juli Technology Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-02-11
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a turning tool shock absorber for a numerical control lathe, which comprises a first cutter bar and a second cutter bar which is concentric with the first cutter bar, wherein a group of rough turning tool and a finishing turning tool are respectively arranged on the first cutter bar and the second cutter bar, a section of hollow structure is arranged in the first cutter bar, a damper is arranged in the hollow structure, the damper is cylindrical, the side surfaces of the left end and the right end of the damper are respectively provided with a plurality of radial grooves, a damping gasket is arranged in each groove, the left end and the right end of the damper are respectively provided with a positioning gasket, the right end of the second cutter bar is provided with a cutter bar mounting seat, the upper side and the lower side of the cutter bar mounting seat are respectively provided with a mounting groove, and a fixing part is arranged in the mounting grooves. The machining precision is guaranteed, and the service life of the cutter is prolonged.

Description

Lathe tool shock absorber for numerical control lathe

Technical Field

The utility model relates to a lathe field specifically is a lathe tool bumper shock absorber for numerical control lathe.

Background

A turning tool is a tool having a cutting portion for turning, and is one of the most widely used tools for cutting. In the current mechanical manufacturing practice, the cutter bar needs to be repeatedly called to replace the cutter due to the difference of the machining surfaces, and particularly when long deep holes are machined, the short cutter bar of the existing working procedure on the machine tool needs to be firstly disassembled and the longer cutter bar needs to be replaced, so that the idle running time is more in the operation process, and the working efficiency is influenced. In addition, when the inner hole machining is carried out on a machine tool, generally, a blade is installed on a cutter head of a cutter bar, when a deep hole is machined, because the cutter bar is long, the weight of the cutter head is large, during machining, the vibration phenomenon is very easy to generate, the machining precision of a workpiece is influenced, the abrasion of the cutter is aggravated, and the service life of the cutter is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lathe tool bumper shock absorber for numerical control lathe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a turning tool shock absorber for a numerical control turning machine comprises a first tool bar and a second tool bar which is concentric with the first tool bar, wherein a group of rough turning tool and a group of finish turning tool are respectively arranged on the first tool bar and the second tool bar, a section of hollow structure is arranged in the first cutter bar, a damper is arranged in the hollow structure, the damper is cylindrical, a plurality of radial grooves are respectively arranged on the side surfaces of the left end and the right end of the damper, a damping gasket is arranged in each groove, a positioning gasket is respectively arranged at the left end and the right end of the damper, the right-hand member of second cutter arbor is equipped with the cutter arbor mount pad, and the upper and lower both sides of cutter arbor mount pad all are equipped with the mounting groove, are equipped with the mounting in the mounting groove, and the mounting groove top right side of upside is equipped with the fixed slot, is equipped with the briquetting rather than matching in the fixed slot, and the briquetting top is equipped with the fixing bolt who runs through the mounting, and the mounting groove right side of downside is equipped with the damping groove.

Further: the left end of the second cutter bar is provided with a circular empty groove, a mounting hole is formed in the circular empty groove, the right end of the first cutter bar is provided with a positioning portion, the inner diameter of the circular empty groove is matched with the outer diameter of the first cutter bar, the size of the mounting hole is matched with the positioning portion, and the first cutter bar is inserted into the mounting hole of the second cutter bar and fixed by a cutter bar positioning bolt on the second cutter bar.

Further: the damping washer is abutted against the inner side of the hollow structure of the first cutter bar, and the axial direction and the radial direction of the positioning washer are abutted against the inner part of the first cutter bar.

Further: the damping washer and the positioning washer are both rubber rings or silica gel rings, and the damping washer and the positioning washer are both hollow circular rings.

Further: the left end face in the mounting groove is arc-shaped, and a screw hole matched with the fixing bolt is formed in the fixing piece.

Further: the damping groove is kept away from fixed slot one side and is equipped with the backup pad that matches with the damping groove, and the backup pad top is equipped with a plurality of damping spring, and the damping spring top is fixed on the damping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the second cutter arbor passes through the firm fixing in the mounting hole of first cutter arbor of cutter arbor positioning bolt, and sound construction, job stabilization is reliable, both can utilize first cutter arbor to carry out conventional machining, can also utilize longer second cutter arbor to carry out BTA, all installs a set of rough turning tool and finish turning tool on first cutter arbor and second cutter arbor respectively, after the rough turning, can directly carry out the finish turning again, need not frequent change cutter, and application range is wide.

2. The vibration of the cutter bar during machining can be greatly relieved, so that the cutter vibration phenomenon during machining is minimized, the machining precision is effectively improved, and the service life of the prop is prolonged.

3. When carrying out part machining, the mount pad passes through the mounting to be fixed on the lathe, and the briquetting supports in the fixed slot on the mounting groove, makes the mounting realize firm the being connected with the mount pad through fixing bolt, can not appear not hard up phenomenon man-hour, and the shock attenuation groove can slow down the vibrations that the decurrent pressure of device during operation produced, further reduction vibrations to the influence of cutter processing.

Drawings

Fig. 1 is a schematic structural diagram of a turning tool damper for a numerically controlled lathe.

FIG. 2 is a schematic structural diagram of a damper in a turning tool shock absorber for a numerically controlled lathe.

Fig. 3 is a schematic structural diagram of a mounting seat and a fixing member in a turning tool shock absorber for a numerically controlled lathe.

Fig. 4 is an enlarged structural schematic diagram of a position a in the turning tool shock absorber for the numerically controlled lathe.

Fig. 5 is a schematic structural view of a damping spring of the turning tool damper for the numerically controlled lathe.

FIG. 6 is a schematic structural diagram of an outer spring assembly of a lathe tool shock absorber for a numerically controlled lathe.

In the figure: 1-a first cutter bar, 101-a positioning part, 102-a damper, 103-a groove, 104-a damping washer, 105-a positioning washer, 2-a second cutter bar, 3-a mounting seat, 301-a mounting groove, 4-a mounting hole, 5-a cutter bar positioning bolt, 6-a roughing tool, 7-a finishing tool, 8-a cutter bar fixing part, 9-a fixing groove, 10-a fixing bolt, 11-a pressing block, 12-a damping groove, 13-a supporting plate and 14-a damping spring; 101-an outer spring; 102-an inner spring; 103-a mounting seat; 104-a boss cassette; 105-a liquid storage cavity; 106-connecting tube; 107-external joint; 108-variable diameter connecting joint.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a turning tool damper for a numerical control lathe includes a first tool bar 1 and a second tool bar 2 concentrically disposed with the first tool bar, a circular hollow groove is formed at a left end of the second tool bar 2, a mounting hole 4 is formed inside the circular hollow groove, a positioning portion 101 is disposed at a right end of the first tool bar 1, an inner diameter of the circular hollow groove matches an outer diameter of the first tool bar 1, a size of the mounting hole 4 matches the positioning portion 101, the first tool bar 1 is inserted into the mounting hole 4 of the second tool bar 2 and is fixed by a tool bar positioning bolt 5 on the second tool bar 2, a group of rough turning tool 6 and a group of fine turning tool 7 are respectively disposed on the first tool bar 1 and the second tool bar 2, a section of hollow structure is disposed inside the first tool bar 1, a damper 102 is disposed inside the hollow structure, the damper 102 is cylindrical, and side surfaces of left and right ends of the damper 102 are respectively provided with a plurality of radial grooves 103, a damping washer 104 is arranged in each groove 103, each damping washer 104 is abutted against the inner side of the hollow structure of the first cutter arbor 1, two positioning washers 105 are respectively arranged at the left end and the right end of the damper 102, each positioning washer 105 is abutted against the inner side of the first cutter arbor 1 in the axial direction and the radial direction, the damping washer 104 and the positioning washer 105 are both rubber rings or silica gel rings, the damping washer 104 and the positioning washer 105 are both hollow circular rings, the first cutter arbor 1 and the second cutter arbor 2 are arranged, the second cutter arbor 2 is firmly fixed in the mounting hole 4 of the first cutter arbor 1 through a cutter arbor positioning bolt 5, the structure is firm, the work is stable and reliable, the conventional mechanical processing can be carried out by using the first cutter arbor 1, the deep hole processing can be carried out by using the longer second cutter arbor 2, a group of roughing tool 6 and a finishing tool 7 are respectively arranged on the first cutter arbor and the second cutter arbor, after rough turning, fine turning can be directly carried out, frequent replacement of cutters is not needed, and the application range is wide; the inside of first cutter arbor 1 is equipped with a attenuator 102, attenuator 102 itself has certain weight, when the cutter arbor is shaking, the weight of attenuator 102 enables to swing the range and reduces, effectively alleviates the oscillation phenomenon of cutter arbor, the cover is equipped with a plurality of shock-absorbing gasket 105 on attenuator 102 simultaneously, can alleviate the vibrations of machining-hour cutter arbor by a wide margin for the sword phenomenon of shaking in the course of working falls to minimumly, the effectual machining precision that has improved helps prolonging the life of stage property.

The right end of the second cutter bar 2 is provided with a cutter bar mounting seat 3, the upper side and the lower side of the cutter bar mounting seat 3 are both provided with mounting grooves 301, the left end surfaces in the two mounting grooves 301 are both arc-shaped, a fixing part 8 is arranged in each mounting groove 301, the right side of the top end of the mounting groove 301 at the upper side is provided with a fixing groove 9, a pressing block 11 matched with the fixing groove 9 is arranged in each fixing groove 9, the top end of each pressing block 11 is provided with a fixing bolt 10 penetrating through each fixing part 8, the fixing part 8 is provided with a screw hole matched with each fixing bolt 10, the right side of the mounting groove 301 at the lower side is provided with a damping groove 12, one side of each damping groove 12, far away from each fixing groove 9, is provided with a supporting plate 13 matched with each damping groove 12, the top end of each damping spring 14 is fixed on each damping groove 12, the mounting seat, the phenomenon of looseness can not appear when processing, and damping spring on the damping groove can slow down the vibrations that the device during operation decurrent pressure produced, further reduction vibrations to the influence of cutter processing.

As shown in fig. 5 and 6; the damping spring 14 comprises an outer spring 101, an inner spring 102 and a mounting seat 103;

the outer spring 101 and the inner spring 102 are mounted between the upper and lower mounting seats 103. The upper and lower mounting seats 103 are fixedly connected with the supporting plate 13 and the fixing piece 8 through bolt components,

the upper and lower mounting seats 103 are provided with convex clamping seats 104 for preventing the outer spring 101 from laterally displacing, the rotating diameters of the two end parts of the outer spring 101 are reduced and pressed against the two end parts of the inner spring 102, namely the diameter D2 of the outer spring 101 is reduced and transited to D1, so that the longitudinal movement of the inner spring 102 can be effectively prevented; the outer spring 101 and the inner spring 102 are reliably fixed on the mounting seat, so that the technical effect of reliable fixation is achieved, and when vibration occurs during machining, the spring 138 plays an effective role in damping and buffering. Meanwhile, the spring cannot be reliably fixed, and when the spring vibrates in machining, the spring also vibrates, so that the damping buffering is not achieved, and the numerical control turning tool is damaged in an accelerating mode.

The radial sections of the outer spring 101 and the inner spring 102 are circular and have the same structure, the two end parts of the outer spring 101 and the inner spring 102 are provided with reducing connecting joints 108 and are connected with a connecting pipe 106 through the reducing connecting joints 108, the connecting pipe 106 is connected with a liquid storage cavity 105 through an external connector 107 and a mounting seat 103, and the liquid storage cavity 105 is filled with non-Newtonian fluid. When the vibration occurs during processing, the non-Newtonian fluid in the outer spring 101 and the inner spring 102 resists damping and instantaneously reduces the impact load, a part of the vibration energy is quickly absorbed, and when the spring assembly deforms due to vibration, the continuous impact load can be stably reduced due to the characteristic that the non-Newtonian fluid filled in the spring slowly flows after being compressed.

Compared with the traditional spring, the spring is made of alloy memory metal, the non-Newtonian fluid is filled inside the spring, and the spring is made of two materials and can absorb shock impact with different frequencies. Compared with the traditional spring, the spring with the inner cavity filled with the non-Newtonian fluid has good transient impact resistance, and the non-Newtonian fluid slowly flows along with the deformation of the spring, so that the corresponding reduction can be performed according to different impact shocks, and the anti-damping effect is better.

The structural design of the outer spring 101 and the inner spring 102 with different diameters ensures that the inner spring 102 provides support for the outer spring 101, and simultaneously provides damping performance with different strengths for different vibration strengths, so that the numerical control lathe tool is ensured to play an effective damping effect in the working process.

The utility model discloses the installation is fixed firm, and convenient to use can improve machining efficiency greatly, can reduce the influence that the cutter vibrations caused to machining by a wide margin simultaneously, guarantees the machining precision, also helps prolonging cutter life.

The utility model discloses a theory of operation is: by arranging the first cutter bar 1 and the second cutter bar 2, the second cutter bar 2 is firmly fixed in the mounting hole 4 of the first cutter bar 1 through the cutter bar positioning bolt 5, the structure is firm, the work is stable and reliable, not only can the first cutter bar 1 be utilized for conventional machining, but also the longer second cutter bar 2 can be utilized for deep hole machining, a group of rough turning tool 6 and a group of finish turning tool 7 are respectively arranged on the first cutter bar and the second cutter bar, after rough turning, finish turning can be directly carried out again, the tools do not need to be frequently replaced, and the application range is wide; the damper 102 is arranged in the first cutter bar 1, the damper 102 has a certain weight, when the cutter bar vibrates, the swinging amplitude of the damper 102 can be reduced due to the weight of the damper 102, the vibration phenomenon of the cutter bar is effectively relieved, and meanwhile, the damper 102 is sleeved with a plurality of shock absorption gaskets 105, so that the vibration of the cutter bar during mechanical processing can be greatly relieved, the vibration phenomenon of the cutter bar during processing is reduced to the minimum, the processing precision is effectively improved, and the service life of the prop is prolonged; mounting

groove

301 and 8 joints of mounting, twists the nut on the fixing bolt 10 during the use, and it is more firm to make being connected of mount pad 6 and mounting 8 through briquetting 11, and under the combined action of 14 restoring forces of damping spring and backup pad 13 in damping groove 12, can slow down the vibrations that the decurrent pressure of device stage property during operation produced, make the cutter during operation not influenced by vibrations, further reduction vibrations to machining's influence.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A turning tool shock absorber for a numerical control lathe comprises a first tool bar (1) and a second tool bar (2) which is concentric with the first tool bar, and is characterized in that a group of rough turning tools (6) and finishing tools (7) are respectively arranged on the first tool bar (1) and the second tool bar (2), a section of hollow structure is arranged in the first tool bar (1), a damper (102) is arranged in the hollow structure, the damper (102) is cylindrical, a plurality of radial grooves (103) are respectively arranged on the side surfaces of the left end and the right end of the damper (102), a shock absorbing gasket (104) is arranged in each groove (103), a positioning gasket (105) is respectively arranged at the left end and the right end of the damper (102), a tool bar mounting seat (3) is arranged at the right end of the second tool bar (2), mounting grooves (301) are respectively arranged on the upper side and the lower side of the tool bar mounting seat (3), be equipped with mounting (8) in mounting groove (301), mounting groove (301) top right side of upside is equipped with fixed slot (9), is equipped with in fixed slot (9) and its assorted briquetting (11), and briquetting (11) top is equipped with fixing bolt (10) that run through mounting (8), and mounting groove (301) right side of downside is equipped with damping groove (12).

2. The turning tool shock absorber for the numerical control lathe according to claim 1, wherein a circular hollow groove is formed in the left end of the second cutter bar (2), a mounting hole (4) is formed in the circular hollow groove, a positioning portion (101) is arranged at the right end of the first cutter bar (1), the inner diameter of the circular hollow groove is matched with the outer diameter of the first cutter bar (1), the size of the mounting hole (4) is matched with the positioning portion (101), and the first cutter bar (1) is inserted into the mounting hole (4) of the second cutter bar (2) and fixed by a cutter bar positioning bolt (5) on the second cutter bar (2).

3. The turning tool damper for the numerically controlled lathe according to claim 1, characterized in that the damping washers (104) are all abutted against the inner side of the hollow structure of the first tool bar (1), and the positioning washers (105) are all abutted against the inner part of the first tool bar (1) in the axial and radial directions.

4. The turning tool shock absorber for the numerical control lathe according to claim 1, wherein the shock absorbing washer (104) and the positioning washer (105) are both rubber rings or silica gel rings, and the shock absorbing washer (104) and the positioning washer (105) are both hollow circular rings.

5. The turning tool shock absorber for the numerical control lathe according to claim 1, wherein the left end surfaces in the mounting grooves (301) are all arc-shaped, and screw holes matched with the fixing bolts (10) are formed in the fixing pieces (8).

6. The turning tool shock absorber for the numerical control lathe according to claim 1, wherein a supporting plate (13) matched with the shock absorbing groove (12) is arranged on one side, away from the fixing groove (9), of the shock absorbing groove (12), a plurality of shock absorbing springs (14) are arranged at the top end of the supporting plate (13), and the top ends of the shock absorbing springs (14) are fixed on the shock absorbing groove (12).