CN216264804U

CN216264804U - Cutter lifting device and machine tool

Info

Publication number: CN216264804U
Application number: CN202122560079.1U
Authority: CN
Inventors: 黄尧钦; 林宗熠; 梁艺瀚; 王洪斌; 许教练
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-12
Anticipated expiration: 2031-10-22

Abstract

The application discloses a cutter lifting device and a machine tool. The cutter lifting device comprises: a tool holder having a first end face extending in a first direction; the connecting piece is fixed on the first end surface of the tool rest; the cutter particle base is rotatably arranged on the connecting piece and used for fixing cutter particles; the cutter particle base has a cutter lifting state and a cutter avoiding state; one end of the transmission piece is fixed on the knife particle base, and the transmission piece drives the knife particle base along a second direction so as to enable the knife particle base to rotate relative to the connecting piece; wherein the first direction and the second direction are perpendicular; when the cutter particle base rotates to be in butt joint with the connecting piece, the cutter particle base is in a cutter lifting state.

Description

Cutter lifting device and machine tool

Technical Field

The application relates to the technical field of machine tool equipment, in particular to a cutter lifting device and a machine tool.

Background

Along with the requirements of the locomotive are higher and higher, the machining precision, the finish degree and the like of corresponding locomotive parts are also higher and higher, and the precision requirement on a machine tool is higher.

At present, the tool lifting movement and the tool avoiding movement of a tool on a machine tool are realized through a hydraulic system. The hydraulic system is for example a hydraulic cylinder. The hydraulic cylinder is too small, the working thrust and the pulling force of the hydraulic cylinder are insufficient, and a cutter is easy to shake, so that the machining precision is influenced; the hydraulic cylinder is too large, and the hydraulic cylinder can limit the working range of the cutter, so that the cutter can not work in a narrow space.

Therefore, it is necessary to design a tool lifting device with a simple structure and without affecting the operation of the tool.

SUMMERY OF THE UTILITY MODEL

One purpose of this application is to provide a new technical scheme of lifting sword device and lathe.

According to a first aspect of embodiments of the present application, a cutter lifting device is provided. The cutter lifting device comprises:

a tool holder having a first end face extending in a first direction;

the connecting piece is fixed on the first end surface of the tool rest;

the cutter particle base is rotatably arranged on the connecting piece; the cutter particle base is used for fixing cutter particles and has a cutter lifting state and a cutter avoiding state;

one end of the transmission piece is fixed on the knife particle base, and the transmission piece drives the knife particle base along a second direction so as to enable the knife particle base to rotate relative to the connecting piece; wherein the first direction and the second direction are perpendicular;

when the cutter particle base rotates to be in butt joint with the connecting piece, the cutter particle base is in a cutter lifting state.

Optionally, the connecting element includes a first connecting seat and a second connecting seat disposed on the first connecting seat, and the second connecting seat protrudes from the first connecting seat;

the first connecting seat is fixed on the tool rest, and the tool grain base is rotatably arranged on the second connecting seat.

Optionally, the first connecting seat has a first surface extending along a first direction, the insert base has a second surface extending along the first direction, and the first surface and the second surface are disposed opposite to each other;

when the first surface and the second surface are in a fit state, the cutter particle base and the connecting piece are in an abutting state.

Optionally, a connecting shaft is fixed on the cutter particle base, an elastic piece is sleeved on the connecting shaft, and the elastic piece has a contraction state and an initial state;

when the cutter particle base rotates to be in butt joint with the connecting piece, the elastic piece is in butt joint with the cutter rest and is in a contraction state.

When the elastic piece is switched from the contraction state to the initial state, the knife grain is in a knife avoiding state.

Optionally, a first through hole and a fixing plate are arranged on the cutter particle base; the first through hole penetrates through the cutter particle base in a second direction;

the transmission piece penetrates through the connecting shaft and the first through hole, and one end of the transmission piece is fixed on the cutter particle base through the fixing plate.

Optionally, the knife granule base comprises a bearing part and an adjusting part, wherein the bearing part is used for placing the knife granule; a second mounting groove is formed in the cutter particle base, and the bearing part is fixed in the second mounting groove; the bearing part is provided with a second through hole which penetrates through the bearing part along a first direction;

the second mounting groove is provided with a limiting hole, one end of the adjusting portion is arranged in the limiting hole, and the other end of the adjusting portion penetrates through the second through hole and is connected with the cutter particles.

Optionally, a first through hole extending along a first direction and a second through hole extending along a second direction are formed in the connecting piece, the first through hole is communicated with the second through hole, and the second through hole is opposite to the cutter granule base.

Optionally, the tool rest has a second end surface extending along the second direction, a first concave groove extending along the second direction is disposed on the second end surface, a vent pipe is disposed in the first concave groove, and one end of the vent pipe is disposed in the first through hole.

Optionally, the tool holder has a third end surface extending along the second direction, a second concave groove extending along the second direction is provided on the third end surface, and the transmission member is disposed in the second concave groove.

According to a second aspect of the present application, a rack is provided. The frame comprises the cutter lifting device of the first aspect.

One technical effect of the present application is that a cutter lifting device is provided. The cutter lifting device comprises a cutter frame, a connecting piece, a cutter particle base and a transmission piece. This application embodiment rotationally sets up the sword grain base on the connecting piece, through the drive of driving medium to when making sword grain base and connecting piece be in the butt state, sword grain base is in and lifts the sword state. The structure that the cutter particle base is in the cutter lifting state during driving is simple, and operation by a user is facilitated; in addition, one end of the transmission part is fixed on the cutter particle base, the transmission part is arranged along the second direction and drives the cutter particle base in the second direction, and the transmission part cannot influence the working range of the cutter particles.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a schematic structural diagram of a cutter lifting device provided in an embodiment of the present application.

Fig. 2 is an exploded view of a cutter lifting device according to an embodiment of the present disclosure.

Fig. 3 is a schematic view of the blade base in a blade-up state.

Fig. 4 is a schematic view of the knife particle base in a knife avoiding state.

Fig. 5 is a structural diagram of a cutter lifting device according to an embodiment of the present application.

Description of reference numerals:

1. a tool holder; 11. a first end face; 12. a second end face; 13. a third end face; 121. a first recess groove; 131. a second recess groove; 14. a breather pipe;

2. a connecting member; 21. a first connecting seat; 22. a second connecting seat; 211. a first through hole; 212. a second through hole; 213. a first surface; 221. a first positioning hole; 222. a third positioning hole; 223. a positioning column;

3. a knife particle base; 31. cutting grains; 32. a second surface; 33. a first through hole; 34. a first mounting groove; 35. a fixing plate; 36. a second mounting groove; 37. a bearing part; 38. an adjustment section; 371. a second through hole; 361. a limiting hole; 39. a second positioning hole;

4. a transmission member;

5. a connecting shaft; 51. an elastic member;

6. a rotating shaft;

71. a first fastener; 72. a second fastener.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Based on the technical problem, in a first aspect of the embodiments of the present application, a cutter lifting device is provided. Referring to fig. 1 to 5, the cutter lifting device includes:

a tool holder 1, said tool holder 1 having a first end face 11 extending in a first direction;

the connecting piece 2 is fixed on the first end surface 11 of the tool rest 1;

the knife particle base 3 is rotatably arranged on the connecting piece 2, and the knife particle base 3 is used for fixing a knife particle 31; the cutter particle base 3 has a cutter lifting state and a cutter avoiding state;

one end of the transmission piece 4 is fixed on the knife particle base 3, and the transmission piece 4 drives the knife particle base 3 along a second direction so as to enable the knife particle base 3 to rotate relative to the connecting piece 2; wherein the first direction is perpendicular to the second direction;

when the cutter particle base 3 rotates to a state of abutting against the connecting piece 2, the cutter particle base 3 is in a cutter lifting state.

In other words, the tool lifting device mainly comprises a tool rest 1, a connecting piece 2, a tool grain base 3 and a transmission piece 4.

The tool holder 1 is used for mounting and fixing a tool bit base 3. For example, the tool rest 1 is provided on a spindle of a machine tool, and the tool rest 1 can move in the axial direction of the spindle, so that the tool bits 31 on the tool bit base 3 can machine a workpiece.

Referring to fig. 1, the tool holder 1 of the present embodiment has a rectangular parallelepiped structure. The tool holder 1 in this embodiment has a first end surface 11 extending in a first direction. In the present embodiment, the first end surface 11 is a surface of a rectangular parallelepiped structure.

In the present embodiment, the connecting element 2 is fixed to the first end surface 11 of the tool holder 1, and the insert base 3 is disposed on the tool holder 1 via the connecting element 2.

In particular, the insert base 3 is rotatably arranged on the connecting piece 2. Namely, the cutter particle base 3 can rotate relative to the connecting piece 2; i.e. the insert seat 3 can be rotated relative to the holder 1.

The knife grain base 3 is used for installing a knife grain 31, for example, the knife grain 31 is detachably installed on the knife grain base 3. The cutting insert 31 is a tool used for cutting in machine manufacturing, and is also called a cutting tool.

Wherein the cutter granule base 3 has a cutter lifting state and a cutter avoiding state. Fig. 3 is a schematic view of the cutter granule base 3 in a cutter lifting state. Fig. 4 is a schematic view showing the knife particle base 3 in a knife avoiding state. Wherein the cutter particle base 3 is in a cutter lifting state, and the cutter particles 31 installed on the cutter particle base 3 are in a cutter lifting state, that is, the cutter particles 31 can process the workpiece of the machine tool. Wherein the cutter particle base 3 is in a cutter avoiding state, that is, the cutter particle base 3 needs to avoid the cutter in a working state on the machine tool, so as to avoid the cutter particle base 3 from interfering with the cutter in the working state.

In this application embodiment, fix the one end of driving medium 4 on sword grain base 3, driving medium 4 can drive sword grain base 3 and take place to rotate for connecting piece 2. Specifically, the transmission member 4 drives the knife particle base 3 in the second direction, so that the knife particle base 3 can rotate in a clockwise direction or a counterclockwise direction relative to the connecting member 2 by a certain extent, and the knife particle base 3 is switched between the knife lifting state and the knife avoiding state. Specifically, the transmission member 4 drives the cutter blade base 3 in the second direction, so that the cutter blade base 3 can swing at a certain angle in the clockwise direction or the counterclockwise direction relative to the connecting member 2.

For example, the transmission member 4 is fixed on the lower half portion of the knife particle base 3, the transmission member 4 drives the knife particle base 3 in the direction away from the connecting member 2 along the second direction, the lower half portion of the knife particle base 3 moves in the direction away from the connecting member 2, the upper half portion of the knife particle base 3 moves in the direction close to the connecting member 2, so that the knife particle base 3 rotates counterclockwise, and the knife particle base 3 gradually moves towards the knife avoiding state. For example, the transmission member 4 drives the knife particle base 3 in the direction approaching the connecting member 2 along the second direction, the lower half portion of the knife particle base 3 moves in the direction approaching the connecting member 2, the upper half portion of the knife particle base 3 moves in the direction away from the connecting member 2, so that the knife particle base 3 rotates clockwise, and the knife particle base 3 gradually moves towards the knife lifting state.

In this embodiment, under the driving action of the transmission member 4, when the knife particle base 3 rotates to be in the abutting state with the connecting member 2, the knife particle base 3 cannot rotate clockwise relative to the connecting member 2. For example, a surface of the insert base 3 abuts a surface of the connector 2. For example, when the insert base 3 is rotated to be in contact with the connector 2, the insert base 3 is vertically arranged in the first direction, and the insert 31 attached to the insert base 3 can process a workpiece. Specifically, the cutting edge of the insert 31 mounted on the insert base 3 facilitates machining of the workpiece.

In this embodiment, the knife particle base 3 is rotatably disposed on the connecting member 2, and the knife particle base 3 is in a knife lifting state when the knife particle base 3 and the connecting member 2 are in an abutting state by driving of the transmission member 4. The structure that the cutter particle base 3 is in the cutter lifting state during driving is simple, and the operation of a user is convenient; in addition, one end of the transmission part 4 is fixed on the knife particle base 3, the transmission part 4 is arranged along the second direction and drives the knife particle base 3 in the second direction, and the transmission part 4 cannot influence the working range of the knife particles 31.

In a particular embodiment, the transmission element 4 is a pull cord. The end of the pull rope far away from the knife particle base 3 is provided with a driving part, and the end of the pull rope close to the knife particle base 3 is fixed on the knife particle base 3. When the pull rope is pulled in the direction far away from the cutter granule base 3, the pull rope is in a tightened state, the cutter granule base 3 is pulled by the pull rope to be lifted to complete the cutter lifting action, and therefore the cutter granule base 3 is in the cutter lifting state.

The drive may be a hydraulic cylinder, for example. In this embodiment, the hydraulic cylinder is located at an end far away from the knife granule base 3, and the hydraulic cylinder does not affect the working range of the knife granule 31.

In one embodiment, referring to fig. 1 and 2, the connector 2 includes a first connector seat 21 and a second connector seat 22 fixed on the first connector seat 21, wherein the second connector seat 22 is protruded from the first connector seat 21;

the first connecting seat 21 is fixed on the tool holder 1, and the tool granule base 3 is rotatably disposed on the second connecting seat 22.

Specifically, the connector 2 includes a first connector holder 21 and a second connector holder 22. Wherein the first connecting seat 21 and the second connecting seat 22 can be integrally formed; or the first and second coupling seats 21 and 22 are detachably coupled.

The second connecting seat 22 protrudes from the first connecting seat 21, so that the blade base 3 can be conveniently installed on the second connecting seat 22. Specifically, in a state where the connector 2 is fixed to the tool holder 1, the second connecting seat 22 is disposed to protrude from the first connecting seat 21 in the second direction.

Specifically, the cutter granule base 3 and the second connecting seat 22 are connected together through the rotating shaft 6. For example, the knife particle base 3 is provided with a first mounting hole, and the second connecting seat 22 penetrates through the first mounting hole so that the knife particle base 3 is disposed on the second connecting seat 22.

A first positioning hole 221 is formed in the second connecting seat 22, and a second positioning hole 39 is formed in the cutter particle base 3, wherein the axial direction of the first positioning hole 221 and the axial direction of the second positioning hole 39 are a third direction, and the first direction, the second direction and the third direction are mutually perpendicular in pairs;

for example, the rotation shaft 6 penetrates through the first positioning hole 221 and the second positioning hole 39, so that the cutter particle base 3 is rotatably disposed on the second connecting seat 22. In an alternative embodiment, the second connecting seat 22 is provided with a third positioning hole 222, an axis of the first positioning hole 221 extends along the second direction, the third positioning hole 222 is communicated with the first positioning hole 221, a positioning post 223 is disposed in the third positioning hole 222, and the positioning post 223 abuts against a circumferential surface of the rotating shaft 6, so as to prevent the rotating shaft 6 from falling off from the first positioning hole 221.

Specifically, the first connecting seat 21 has a mounting hole, the first end surface 11 of the tool holder 1 has a mounting hole, and the first connecting seat 21 is fixed to the tool holder 1 by a first fastening member 71. For example, the fasteners may be bolts.

In one embodiment, referring to fig. 2, the first connecting seat 21 has a first surface 213 extending along a first direction, the insert base 3 has a second surface 32 extending along the first direction, and the first surface 213 is opposite to the second surface 32;

when the first surface 213 and the second surface 32 are in a fit state, the insert base 3 and the connecting member 2 are in an abutting state.

Specifically, when the insert base 3 is rotated to the insert lifting state, the first connecting seat 21 and the insert base 3 are disposed opposite to each other. For example, the first surface 213 of the first connection seat 21 extending in the first direction and the second surface 32 of the insert base 3 extending in the first direction are disposed in contact with each other, so that the insert base 3 and the connection member 2 are in an abutting state.

When the first surface 213 and the second surface 32 are in the attached state, the insert base 3 cannot rotate clockwise relative to the connector 2, and at this time, the insert base 3 is in the abutting state with the connector 2. When the cutter particle base 3 and the connecting piece 2 are in an abutting state, the cutter particle base 3 is in a cutter lifting state.

In one embodiment, a connecting shaft 5 is fixed on the cutter granule base 3, and an elastic member 51 is sleeved on the connecting shaft 5; the elastic member 51 has a contracted state and an initial state;

when the insert base 3 is rotated to abut against the connector 2, the elastic member 51 abuts against the tool holder 1 and is in a contracted state.

When the elastic member 51 is switched from the contracted state to the initial state, the knife particle 31 is in a knife-avoiding state.

Referring to fig. 2, the elastic member 51 is sleeved on the connecting shaft 5, and when the driving member 4 drives the knife base 3 to rotate, the connecting shaft 5 also drives the elastic member 51 to move.

For example, when the driving member 4 drives the knife base 3 to rotate clockwise, the elastic member 51 moves towards the direction close to the knife holder 1, and when the knife base 3 rotates to be in contact with the connecting member 2, the elastic member 51 just moves to be in contact with the first end surface 11 of the knife holder 1, and at this time, the elastic member 51 is compressed to be in a contracted state.

When the resilient member 51 is located between the tool holder 1 and the insert base 3.

When the driving part is used for removing force, the transmission part 4 is not stressed, the knife particle base 3 is pushed up under the restoring force of the elastic part 51, the knife particle base 3 rotates anticlockwise for a certain angle, at the moment, the knife particle base 3 completes the knife avoiding action, and the knife particle base 3 is in the knife avoiding state.

The elastic member 51 is an elastic spring, for example. The connecting shaft 5 is fixed to the second surface 32 of the insert base 3 by fasteners.

In one embodiment, referring to fig. 1-5, the knife granule base 3 is provided with a first through hole 33 and a fixing plate 35; the first through hole 33 penetrates through the cutter particle base 3 in a second direction;

the transmission member 4 penetrates through the connecting shaft 5 and the first through hole 33, and one end of the transmission member 4 is fixed to the insert base 3 through the fixing plate 35.

Specifically, after the transmission member 4 sequentially penetrates the connecting shaft 5 and the first through hole 33, a part of the transmission member 4 is exposed. The exposed transmission element 4 is fixed to the insert base 3 by a fixing plate 35.

In particular, the insert base 3 has a third surface, wherein the third surface is disposed opposite the second surface 32. A first mounting groove 34 is formed on the third surface, and a first through hole 33 penetrates the first mounting groove 34. When a part of the actuator 4 is exposed from the first mounting groove 34, one end of the actuator 4 is fixed to the cutter base 3 by the fixing plate 35. For example, the end of the transmission element 4 is pressed by the fastening plate 35, and after the transmission element has been pressed, the fastening plate 35 is fastened to the insert base 3 by the second fastening element 72. For example, the second fastener 72 may be a bolt. By providing the first mounting groove 34 on the third surface, it is convenient to embed the transmission member 4 in the first mounting groove 34.

In one embodiment, the cartridge base 3 includes a bearing portion 37 and an adjusting portion 38, the bearing portion 37 is used for placing the cartridge 31; a second mounting groove 36 is formed in the cutter particle base 3, and the bearing part 37 is fixed in the second mounting groove 36; the bearing part 37 is provided with a second through hole 371 which penetrates along the first direction;

a limiting hole 361 is formed in the second mounting groove 36, one end of the adjusting portion 38 is disposed in the limiting hole 361, and the other end of the adjusting portion 38 penetrates through the second through hole 371 and is connected to the knife blade 31.

In particular, the insert base 3 follows a plate-like structure. The plate-like structure has a predetermined height in a first direction, a predetermined length in a second direction, and a predetermined width in a third direction. For example, a first mounting groove 34 and a second mounting groove 36 are formed in the blade base 3 having a plate-like structure.

In this embodiment, the insert base 3 is provided with a second mounting groove 36, and the structure of the second mounting groove 36 matches the structure of the bearing portion 37.

The carrier 37 is used for placing the knife particles 31. For example, the bearing portion 37 is provided with a blocking wall. The cutting insert 31 rests on the carrier 37 and the wall prevents the cutting insert 31 from falling off the carrier 37.

In a state where the supporting portion 37 is fixed to the second mounting groove 36, one end of the adjusting portion 38 is disposed in the limiting hole 361, and the other end of the adjusting portion 38 is inserted into the second through hole 371 and connected to the cutter particle 31. The mounting height of the cutter particles 31 is adjusted by the adjusting portion 38. For example, the adjustment portion 38 may be an adjustment screw.

In one embodiment, referring to fig. 2 and 5, the connecting member 2 is provided with a first through hole 211 extending along a first direction and a second through hole 212 extending along a second direction, the first through hole 211 is communicated with the second through hole 212, and the second through hole 212 is opposite to the cutting insert base 3.

Specifically, the connecting member 2 is provided with a first through hole 211 and a second through hole 212. Wherein the axis of the first through hole 211 extends in a first direction and the axis of the second through hole 212 extends in a second direction. Compressed gas who gets into from the external world passes through first through-hole 211 and second through-hole 212, and then compressed gas can flow to between connecting piece 2 and the sword grain base 3, blows away the metal debris that will be attached to the surface of sword grain base 3 through compressed gas, keeps the accuracy of sword grain base 3 connecting seat butt location. In addition, the metal chips are prevented from being trapped in each gap after the machine tool works for a long time, and the normal work of the machine tool is prevented from being hindered.

In this embodiment, the second through hole 212 also serves as a mounting hole for fixing the connector 2.

In one embodiment, referring to fig. 2 and 5, the tool holder 1 has a second end surface 12 extending along the second direction, the second end surface 12 is provided with a first recessed groove 121 extending along the second direction, a vent pipe 14 is placed in the first recessed groove 121, and one end of the vent pipe 14 is placed in the first through hole 211.

In particular, the tool holder 1 has a second end face 12 extending in the second direction, the tool holder 1 has a first end face 11 extending in the first direction, wherein the first end face 11 and the second end face 12 are connected.

The second end surface 12 is provided with a first concave groove 121 extending along the second direction, wherein a vent pipe 14 is disposed in the first concave groove 121, and compressed gas is introduced into the first through hole 211 and the second through hole 212 through the vent pipe 14 in this embodiment.

In the embodiment, the first concave groove 121 is formed on the second end surface 12 of the tool rest 1, so that the excessive space occupied by the machine tool is avoided, and the air pipe 14 is further prevented from influencing the working range of the tool bit 31.

In one embodiment, referring to fig. 2 and 5, the tool holder 1 has a third end surface 13 extending in the second direction, the third end surface 13 is provided with a second recessed groove 131 extending in the second direction, and the transmission member 4 is disposed in the second recessed groove 131.

In particular, the tool holder 1 has a second end face 12 extending in the second direction, the tool holder 1 has a third end face 13 extending in the second direction, and the tool holder 1 has a first end face 11 extending in the first direction. Wherein one end of the second end surface 12 is connected with the first end surface 11, and one end of the third end surface 13 is connected with the first end surface 11. The second end face 12 and the third end face 13 are disposed at an interval in the first direction.

In the embodiment, the second concave groove 131 is formed in the third end surface 13, and the transmission member 4 is embedded in the second concave groove 131, so that the influence of the transmission member 4 on the working range of the cutter 31 is avoided.

In an alternative embodiment, support wheels are provided on the blade holder 1 to increase the stiffness of the blade holder 1.

According to a second aspect of the present application, a machine tool is provided. The machine tool comprises the cutter lifting device in the first direction. In particular, the cutter lifting device is applied to the machine tool, so that the phenomenon that the cutter lifting device occupies too much machine tool space is avoided, and the phenomenon that the cutter lifting device influences the normal working range of the cutter grains 31 on the machine tool is further avoided.

In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.

Although some specific embodiments of the present application have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. A cutter lifting device is characterized by comprising:

a tool holder (1), the tool holder (1) having a first end face (11) extending in a first direction;

the connecting piece (2) is fixed on the first end surface (11) of the tool rest (1);

the cutter particle base (3), the cutter particle base (3) is rotatably arranged on the connecting piece (2), and the cutter particle base (3) is used for fixing the cutter particles (31); the cutter particle base (3) has a cutter lifting state and a cutter avoiding state;

one end of the transmission piece (4) is fixed on the knife particle base (3), and the transmission piece (4) drives the knife particle base (3) along a second direction so that the knife particle base (3) rotates relative to the connecting piece (2); wherein the first direction and the second direction are perpendicular;

when the cutter particle base (3) rotates to be in a state of being abutted to the connecting piece (2), the cutter particle base (3) is in a cutter lifting state.

2. The cutter lifting device according to claim 1, characterized in that the connecting piece (2) comprises a first connecting seat (21) and a second connecting seat (22) arranged on the first connecting seat (21), and the second connecting seat (22) is arranged to protrude from the first connecting seat (21);

the first connecting seat (21) is fixed on the tool rest (1), and the tool grain base (3) is rotatably arranged on the second connecting seat (22).

3. The blade lifting device according to claim 2, wherein the first connecting seat (21) has a first surface (213) extending along a first direction, the blade base (3) has a second surface (32) extending along the first direction, and the first surface (213) is opposite to the second surface (32);

when the first surface (213) and the second surface (32) are in a fit state, the insert base (3) and the connecting piece (2) are in an abutting state.

4. The cutter lifting device according to claim 1, characterized in that a connecting shaft (5) is fixed on the cutter granule base (3), an elastic member (51) is sleeved on the connecting shaft (5), and the elastic member (51) has a contraction state and an initial state;

when the cutter particle base (3) rotates to be in butt joint with the connecting piece (2), the elastic piece (51) is in butt joint with the cutter frame (1) and is in a contraction state;

when the elastic member (51) is switched from the contracted state to the initial state, the cutter granule base (3) is in a cutter avoiding state.

5. The cutter lifting device according to claim 4, characterized in that the cutter granule base (3) is provided with a first through hole (33) and a fixing plate (35); the first through hole (33) penetrates through the cutter particle base (3) in a second direction;

the transmission piece (4) penetrates through the connecting shaft (5) and the first through hole (33), and one end of the transmission piece (4) is fixed on the cutter particle base (3) through the fixing plate (35).

6. The blade lifting device according to claim 1, characterized in that the blade base (3) comprises a bearing part (37) and an adjusting part (38), the bearing part (37) is used for placing the blade (31); a second mounting groove (36) is formed in the cutter particle base (3), and the bearing part (37) is fixed in the second mounting groove (36); the bearing part (37) is provided with a second through hole (371) which penetrates through the bearing part (37) along a first direction;

the second mounting groove (36) is provided with a limiting hole (361), one end of the adjusting part (38) is arranged in the limiting hole (361), and the other end of the adjusting part (38) penetrates through the second through hole (371) and is connected with the cutter particle (31).

7. The cutter lifting device according to claim 1, wherein a first through hole (211) extending along a first direction and a second through hole (212) extending along a second direction are formed in the connecting piece (2), the first through hole (211) is communicated with the second through hole (212), and the second through hole (212) is opposite to the cutter granule base (3).

8. The cutter lifting device according to claim 7, wherein the cutter holder (1) is provided with a second end surface (12) extending along the second direction, a first concave groove (121) extending along the second direction is arranged on the second end surface (12), a vent pipe (14) is arranged in the first concave groove (121), and one end of the vent pipe (14) is arranged in the first through hole (211).

9. The tool lifting device according to claim 1, characterized in that the tool holder (1) has a third end face (13) extending in the second direction, a second recess groove (131) extending in the second direction is provided on the third end face (13), and the transmission member (4) is disposed in the second recess groove (131).

10. A machine tool comprising a tool lifting apparatus as claimed in any one of claims 1 to 9.