CN210967176U

CN210967176U - Insert formula PCB board milling cutter with shock-absorbing function

Info

Publication number: CN210967176U
Application number: CN201921748001.9U
Authority: CN
Inventors: 夏洪洲; 彭旺峰
Original assignee: Shenzhen Jinfeng Environmental Protection Technology Co ltd
Current assignee: Shenzhen Jinfeng Environmental Protection Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-10
Anticipated expiration: 2029-10-18

Abstract

The utility model belongs to the technical field of milling cutter, a plug-in PCB board milling cutter with shock-absorbing function is disclosed, including tool bit, damping spring and the handle of a knife of interconnect, the one end of handle of a knife has seted up the spacing cover groove, and damping spring embedded fixing in the inside of spacing cover groove, spacing cover inslot still is equipped with piston tool bit mount pad, tool bit mount pad and damping spring's expansion end welding, and tool bit mount pad still directly fixes with the one end of tool bit, the degree of depth of spacing cover groove is greater than the sum of the length of the damping spring of non-flexible state and tool bit mount pad; a telescopic component is further installed in the limiting sleeve groove, and the extension of the tool bit mounting seat is realized based on the telescopic component; to sum up, locate the stop collar inslot with damping spring in to it is fixed to combine the installation that the tool bit mount pad realized the tool bit in the stop collar inslot, guarantees the stability of tool bit installation on the one hand, and damping spring's shock attenuation buffering direction is injectd to on the other hand.

Description

Insert formula PCB board milling cutter with shock-absorbing function

Technical Field

The utility model belongs to the technical field of milling cutter, concretely relates to formula of inserting PCB board milling cutter with shock-absorbing function.

Background

The insert type milling cutter is a common processing cutter in the PCB processing process, and the phenomenon of cutter vibration is avoided due to the fact that the cutter runs at a high height in the actual processing process, so that a large amount of cutting burrs are generated, and even the phenomena of cutter breakage and scrapping of a PCB are caused;

in the prior art, in order to reduce the vibration phenomenon during the milling cutter machining, a damping member is often additionally arranged at the installation position of the milling cutter, and the damping member is often formed by a damping spring.

However, only adding the damping spring can affect the accuracy and stability of the installation position of the milling cutter to a certain extent, because the damping spring has a corresponding deformation effect and the deformation direction of the damping spring is not limited, once the milling cutter vibrates, the damping spring can deform in an uncertain way, and further the positioning of the milling cutter is affected; in addition, in the prior art, there is a certain inconvenience in the disassembly and assembly between the milling cutter and the damping spring, and thus it is difficult to achieve quick replacement of the milling cutter tool.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an insert formula PCB board milling cutter with shock-absorbing function 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: an insertion type PCB milling cutter with a damping function comprises a cutter head and a cutter handle which are connected with each other, a damping component is connected between the cutter head and the cutter handle and is formed based on a damping spring, a limiting sleeve groove is formed in one end of the cutter handle, the damping spring is embedded and fixed inside the limiting sleeve groove, a piston type cutter head mounting seat is further arranged in the limiting sleeve groove, the cutter head mounting seat is welded with the movable end of the damping spring, the cutter head mounting seat is further directly fixed with one end of the cutter head, and the depth of the limiting sleeve groove is larger than the sum of the lengths of the damping spring in a non-telescopic state and the cutter head mounting seat;

and a telescopic component is further installed in the limiting sleeve groove, and the extension of the tool bit mounting seat is realized based on the telescopic component.

Preferably, the tool bit includes integrated into one piece's connecting portion and cutting edge portion, wherein connecting slot has been seted up to the one end of connecting portion, the tool bit mount pad is T type structure to form mutually supporting with connecting slot, and still form fixed connection through connecting bolt behind tool bit mount pad and the connecting portion block, the chip groove has been seted up to the spiral on the table wall of cutting edge portion.

Preferably, the number of the connecting bolts is four, and the connecting bolts are uniformly distributed based on a ring array mode.

Preferably, the telescopic member comprises an inner telescopic rod and an outer telescopic rod, and the inner telescopic rod is embedded in the outer telescopic rod.

Preferably, the telescopic tool further comprises a driving device of the telescopic member, the driving device comprises an air pipe and a mounting hole, one end of the air pipe extends to the outer wall of the tool shank and is connected with a valve, a first air hole is connected between the air pipe and the mounting hole, and a second air hole is formed in the end portion of the outer telescopic rod.

Preferably, the pore diameter of the second pores is smaller than the pore diameter of the first pores.

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

(1) the utility model discloses in, locate the limit sleeve inslot in with damping spring to it is fixed to combine the installation that the tool bit mount pad realized the tool bit at the limit sleeve inslot, guarantees the stability of tool bit installation on the one hand, and damping spring's shock attenuation buffering direction is injectd to on the other hand, arouses the deformation buffering of uncertainty direction when avoiding the cutter vibrations with this, and then has guaranteed damping spring's effective shock attenuation and the accurate processing of tool bit.

(2) To above-mentioned tool bit mount pad, the cooperation is equipped with flexible component to release the tool bit mount pad from the stop collar inslot, and then make things convenient for being connected of tool bit and tool bit mount pad.

(3) Between the connecting portion of above-mentioned tool bit mount pad and tool bit, based on block and connecting bolt form dual fixed, guaranteed the firm of tool bit installation, connection structure is simple simultaneously, and easily dismouting, and then the quick replacement of the realization tool bit of being convenient for.

Drawings

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

FIG. 2 is a cross-sectional view taken along the direction A in FIG. 1;

FIG. 3 is an enlarged view of FIG. 1 at B;

in the figure: the tool comprises a tool bit 1, a tool bit 11, a connecting part, a connecting clamping groove 111, a connecting bolt 112, a tool edge part 12, a chip removing groove 121, a tool bit mounting seat 2, a damping spring 3, a limiting sleeve groove 4, a tool handle 5, an air pipe 6, an air valve 61, a first air hole 62, a mounting hole 7, an expansion member 8, an inner expansion rod 81, an outer expansion rod 82 and a second air hole 83.

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. 1-3, the present invention provides the following technical solutions: an insert type PCB milling cutter with a damping function comprises a cutter head 1 and a cutter handle 5 which are connected with each other, a damping component is connected between the cutter head 1 and the cutter handle 5 and is formed based on a damping spring 3, a limiting sleeve groove 4 is formed in one end of the cutter handle 5, the damping spring 3 is embedded and fixed inside the limiting sleeve groove 4, a piston type cutter head mounting seat 2 is further arranged in the limiting sleeve groove 4, the cutter head mounting seat 2 is welded with the movable end of the damping spring 3, the cutter head mounting seat 2 is directly fixed with one end of the cutter head 1, and the depth of the limiting sleeve groove 4 is larger than the sum of the lengths of the damping spring 3 and the cutter head mounting seat 2 in a non-telescopic state; therefore, the tool bit mounting seat 2 and the damping spring 3 are completely embedded into the limiting sleeve groove 4, the state shown in fig. 1 can be formed after the complete tool bit 1 is mounted, namely, the connected end of the tool bit 1 is also embedded into the limiting sleeve groove 4, wherein the tool bit mounting seat 2 is in a piston structure form, so that the damping and buffering directions of the damping spring 3 and the tool bit 1 are limited, the tool bit 1 is prevented from being subjected to non-directional vibration or swinging, and the stability of connection and positioning of the tool bit 1 and the accuracy during processing are ensured;

still install telescopic member 8 in the stop collar groove 4 to realize stretching out of tool bit mount pad 2 based on telescopic member 8, make being connected of tool bit 1 and tool bit mount pad 2 can accomplish outside stop collar groove 4 from this, thereby make tool bit 1 must install comparatively conveniently.

In this embodiment, preferably, the tool bit 1 includes a connecting portion 11 and a cutting edge portion 12 that are integrally formed, wherein a connecting slot 111 is formed at one end of the connecting portion 11, the tool bit mounting seat 2 is T-shaped and is matched with the connecting slot 111, the tool bit mounting seat 2 is fixedly connected to the connecting portion 11 through a connecting bolt 112 after being engaged with the connecting portion, and a chip discharge groove 121 is spirally formed in a surface wall of the cutting edge portion 12.

In this embodiment, preferably, there are four connecting bolts 112, and the connecting bolts are uniformly distributed based on a circular array, so as to ensure the stability of the whole connection.

In this embodiment, it is preferable that the telescopic member 8 includes an inner telescopic rod 81 and an outer telescopic rod 82, and the inner telescopic rod 81 is embedded inside the outer telescopic rod 82, so as to form a bipolar telescopic structure, so that the telescopic member 8 can effectively meet the requirement of pushing out the bit mount 2 without interfering with the deformation damping of the damping spring 3.

In this embodiment, preferably, the tool further comprises a driving device of the telescopic member 8, the driving device comprises an air pipe 6 and a mounting hole 7, wherein one end of the air pipe 6 extends to the outer wall of the tool holder 5 and is connected with a valve 61, a first air hole 62 is connected between the air pipe 6 and the mounting hole 7, and a second air hole 83 is formed in the end portion of the outer telescopic rod 82.

In this embodiment, it is preferable that the diameter of the second air hole 83 is smaller than that of the first air hole 62, so as to ensure that the inner telescopic rod 81 and the outer telescopic rod 82 can be driven synchronously, that is, after air enters the mounting hole 7 through the air pipe 6 and the first air hole 62, a part of air will pass through the second air hole 83 and enter the outer telescopic rod 82, thereby pushing the inner telescopic rod 81 to extend, and the rest of air is retained in the mounting hole 7, thereby pushing the outer telescopic rod 82 to extend, thereby shortening the extending time of the telescopic member 8.

The utility model discloses an installation flow: the milling cutter comprises a cutter head 1 and a cutter handle 5 which are matched with each other, wherein an air inlet and suction device, such as a micro air pump, is connected to an air valve 61 on the cutter handle 5, so that external air is introduced into an air pipe 6, at the moment, the air enters a mounting hole 7 and an outer telescopic rod 82 through the air pipe 6, a first air hole 62 and a second air hole 83 respectively, so that a telescopic member 8 is driven to extend, the cutter head mounting seat 2 is pushed out from a limit sleeve groove 4 after the telescopic member 8 extends, then a connecting part 11 of the cutter head 1 is clamped to the cutter head mounting seat 2 through a connecting clamping groove 111, a connecting bolt 112 is screwed between the connecting part 11 and the cutter head mounting seat 2 to form further mounting, finally, the air in the air pipe 6 is sucked out based on the air inlet and suction device, so that the telescopic member 8 forms retraction, at the moment, the cutter head mounting seat 2 and the connecting part 11 are brought into the limit, finally, the solid milling cutter is mounted on the machine tool based on the shank 5 itself.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an insert formula PCB board milling cutter with shock-absorbing function, includes interconnect's tool bit (1) and handle of a knife (5), and is connected with damping member between tool bit (1) and handle of a knife (5), damping member constitutes its characterized in that based on damping spring (3): a limiting sleeve groove (4) is formed in one end of the cutter handle (5), the damping spring (3) is embedded and fixed in the limiting sleeve groove (4), a piston type cutter head mounting seat (2) is further arranged in the limiting sleeve groove (4), the cutter head mounting seat (2) is welded with the movable end of the damping spring (3), the cutter head mounting seat (2) is further directly fixed with one end of the cutter head (1), and the depth of the limiting sleeve groove (4) is larger than the sum of the lengths of the damping spring (3) and the cutter head mounting seat (2) in a non-telescopic state;

and a telescopic component (8) is further installed in the limiting sleeve groove (4), and the extension of the tool bit mounting seat (2) is realized based on the telescopic component (8).

2. An insert PCB milling cutter with shock absorbing function as claimed in claim 1, wherein: tool bit (1) includes integrated into one piece's connecting portion (11) and cutting edge portion (12), wherein connecting slot (111) have been seted up to the one end of connecting portion (11), tool bit mount pad (2) are T type structure to form mutually supporting with connecting slot (111), and form fixed connection through connecting bolt (112) behind tool bit mount pad (2) and connecting portion (11) block, chip groove (121) have been seted up to the spiral on the table wall of cutting edge portion (12).

3. An insert PCB milling cutter with shock absorbing function as claimed in claim 2, wherein: the number of the connecting bolts (112) is four, and the connecting bolts are uniformly distributed based on an annular array mode.

4. An insert PCB milling cutter with shock absorbing function as claimed in claim 1, wherein: the telescopic component (8) comprises an inner telescopic rod (81) and an outer telescopic rod (82), and the inner telescopic rod (81) is embedded in the outer telescopic rod (82).

5. An insert PCB milling cutter with shock absorbing function as claimed in claim 4, wherein: still include the drive arrangement of telescopic member (8), drive arrangement includes trachea (6) and mounting hole (7), wherein the one end of trachea (6) extends to on handle of a knife (5) outer wall to be connected with air valve (61), and be connected with first gas pocket (62) between trachea (6) and mounting hole (7), second gas pocket (83) have been seted up to the tip of outer telescopic link (82).

6. An insert PCB milling cutter with shock absorbing function as claimed in claim 5, wherein: the aperture of the second air hole (83) is smaller than that of the first air hole (62).