CN216540879U

CN216540879U - Numerical control machine tool tailstock main shaft

Info

Publication number: CN216540879U
Application number: CN202121191745.2U
Authority: CN
Inventors: 张晨; 蒋绍霞; 王建军
Original assignee: SHANDONG FANGDA MACHINERY CO LTD
Current assignee: SHANDONG FANGDA MACHINERY CO LTD
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-05-17
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a tailstock main shaft of a numerical control machine tool, which comprises a main shaft box and a clamping assembly, wherein a fixed bearing is fixedly arranged in the middle of one end of the main shaft box, a supporting plate is fixedly arranged at the bottom end of one side in the main shaft box, a main shaft body is rotatably connected between the supporting plate and the fixed bearing, the clamping assembly comprises a shell, two clamping plates, six springs and four fixing holes, the shell is fixedly arranged at the other end of the main shaft body, and the six springs are respectively fixedly arranged at the top end in the shell and the bottom end in the shell, and the tailstock main shaft has the beneficial effects that: the inner sides of one ends of the two clamping plates are round corners, so that a workpiece can be conveniently inserted, and the two clamping plates can be contracted through the six springs, so that the clamping device is suitable for workpieces with different sizes and has wide adaptability; the plurality of fan blades generate negative pressure wind power to suck the cooling liquid into the sleeve under the rotation of the sleeve, so that the cooling liquid is prevented from being thrown out due to the rotation of the main shaft body, and the cooling effect is improved.

Description

Numerical control machine tool tailstock main shaft

Technical Field

The utility model relates to a tailstock main shaft, in particular to a tailstock main shaft of a numerical control machine tool, and belongs to the technical field of machine tool main shafts.

Background

The tailstock main shaft can rotate at a high speed along with the workpiece when the numerical control machine tool performs turning, but the conventional tailstock main shaft can generate a large amount of heat when rotating at a high speed, the surface of the tailstock main shaft is easily thrown away by using cooling liquid, the cooling effect is greatly reduced, the adaptability of the main shaft to machined parts is poor, the machined parts of various sizes cannot be clamped, the machining cost is high, and the workpiece machining effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a numerical control machine tailstock main shaft, which aims to solve the problems of poor cooling effect and poor adaptability to a machined part in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a numerical control machine tailstock main shaft comprises a main shaft box and a clamping assembly, wherein a fixed bearing is fixedly arranged in the middle of one end of the main shaft box, a supporting plate is fixedly arranged at the bottom end of one side in the main shaft box, a main shaft body is rotatably connected between the supporting plate and the fixed bearing, a belt pulley is fixedly arranged on the surface of the main shaft body, a sleeve is fixedly connected in the middle of the main shaft body, a liquid inlet pipe is fixedly connected to one side of the top end of the main shaft box, the clamping assembly is fixedly arranged at the other end of the main shaft body, the clamping assembly comprises a shell, two clamping plates, six springs and four fixing holes, the shell is fixedly arranged at the other end of the main shaft body, the six springs are respectively fixedly arranged at the top end and the bottom end in the shell, and one ends corresponding to the six springs are fixedly connected with the two clamping plates, two fixing holes are formed in the middle of each clamping plate and in the top end and the bottom end of the shell.

As a preferable technical scheme of the utility model, the inner sides of one ends of the two clamping plates are both round corners.

As a preferred technical scheme of the utility model, the bottom end of the liquid inlet pipe is fixedly connected with a spray plate, and the bottom end of the spray plate is provided with a plurality of nozzles.

As a preferred technical scheme of the utility model, a plurality of fan blades are fixedly arranged on the inner wall of one side of the sleeve.

As a preferable technical solution of the present invention, a baffle is fixedly provided at one side of the inside of the spindle box.

As a preferable technical scheme of the utility model, one end of the main shaft body is fixedly connected with a bevel gear.

According to a preferable technical scheme of the utility model, screw holes are formed in both one side of the top end and one side of the bottom end of the sleeve, two fixing grooves corresponding to the screw holes are formed in the surface of the main shaft body, and fixing screws are connected to the inner walls of the two screw holes in a threaded manner.

Compared with the prior art, the utility model has the beneficial effects that: according to the numerical control machine tailstock main shaft, the inner sides of one ends of the two clamping plates are set to be the round corners, so that a workpiece can be conveniently inserted, the two clamping plates can be contracted through the six springs, the numerical control machine tailstock main shaft is suitable for workpieces of different sizes, the adaptability is wide, the four fixing holes are used for fixing, and the fixing effect is improved; the plurality of fan blades generate negative pressure wind power to suck the cooling liquid into the sleeve under the rotation of the sleeve, so that the cooling liquid is prevented from being thrown out due to the rotation of the main shaft body, and the cooling effect can be improved while the cooling liquid is saved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of the sleeve of the present invention.

In the figure: 1. a main spindle box; 2. a main shaft body; 3. a sleeve; 4. a clamping assembly; 41. a housing; 42. A splint; 43. a spring; 44. a fixing hole; 5. a liquid inlet pipe; 6. spraying a plate; 7. a fan blade; 8. a baffle plate; 9. a belt pulley; 10. a bevel gear; 11. a support plate; 12. a set screw; 13. and fixing the bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a numerical control machine tailstock spindle, which comprises a spindle box 1 and a clamping assembly 4, wherein a fixed bearing 13 is fixedly arranged in the middle of one end of the spindle box 1, a supporting plate 11 is fixedly arranged at the bottom end of one side inside the spindle box 1, a spindle body 2 is rotatably connected between the supporting plate 11 and the fixed bearing 13, a belt pulley 9 is fixedly arranged on the surface of the spindle body 2, a sleeve 3 is fixedly connected in the middle of the spindle body 2, a liquid inlet pipe 5 is fixedly connected to one side of the top end of the spindle box 1, the clamping assembly 4 is fixedly arranged at the other end of the spindle body 2, the clamping assembly 4 comprises a shell 41, two clamping plates 42, six springs 43 and four fixing holes 44, the shell 41 is fixedly arranged at the other end of the spindle body 2, the six springs 43 are respectively fixedly arranged at the top end inside the shell 41 and the bottom end inside the shell, and one end corresponding to the six springs 43 is fixedly connected with the two clamping plates 42, two fixing holes 44 are formed in the middle of the two clamping plates 42 and at the top end and the bottom end of the shell 41.

Preferably, the inner sides of one ends of the two clamping plates 42 are round corners, the insertion of a workpiece can be facilitated by setting the inner sides of one ends of the two clamping plates 42 as the round corners, the two clamping plates 42 can be contracted through the six springs 43, so that the clamping plates are suitable for workpieces with different sizes, the adaptability is wide, and the fixing effect is improved by fixing through the four fixing holes 44; the bottom end of the liquid inlet pipe 5 is fixedly connected with a spray plate 6, and a plurality of nozzles are formed in the bottom end of the spray plate 6, so that cooling liquid can be uniformly sprayed on the surface of the main shaft body 2 through the plurality of nozzles formed in the bottom end of the spray plate 6; the inner wall of one side of the sleeve 3 is fixedly provided with the plurality of fan blades 7, the plurality of fan blades 7 generate negative pressure wind power under the rotation of the sleeve 3 to suck the cooling liquid into the sleeve 3, the cooling liquid is prevented from being thrown out due to the rotation of the main shaft body 2, and the cooling effect can be improved while the cooling liquid is saved; a baffle plate 8 is fixedly arranged on one side in the spindle box 1, and the baffle plate 8 can block the cooling liquid sprayed out from one end of the sleeve 3, so that the short circuit of the motor caused by splashing of the cooling liquid is avoided; one end of the main shaft body 2 is fixedly connected with a bevel gear 10, and the bevel gear 10 can enable the main shaft body 2 to adapt to different transmission modes, so that the functionality of the main shaft body is improved; screw holes are formed in one side of the top end of the sleeve 3 and one side of the bottom end of the sleeve 3, two fixing grooves corresponding to the screw holes are formed in the surface of the main shaft body 2, fixing screws 12 are connected to the inner walls of the two screw holes in a threaded mode, the sleeve 3 is fixed through the fixing screws 12, and the sleeve is convenient to disassemble and assemble.

When the numerical control machine tailstock main shaft is used, firstly, the sleeve 3 is fixedly connected with the main shaft body 2 through the two fixing screws 12, a workpiece to be processed is inserted into the shell 41 through the round angle at the inner side of one end of the two clamping plates 42, the two clamping plates 42 can be contracted through the six springs 43, so that the numerical control machine tailstock main shaft is suitable for workpieces with different sizes, the adaptability is wide, the workpieces are fixed through the four fixing holes 44, the fixing effect is improved, then, the belt pulley 9 can be driven by a belt, the shell 41 and the workpiece are driven to rotate under the rotation of the main shaft body 2, the workpiece is processed by a processing cutter, cooling liquid is input into the spraying plate 6 through the liquid inlet pipe 5, the cooling liquid can be uniformly sprayed on the surface of the main shaft body 2 through the plurality of nozzles, the plurality of fan blades 7 generate negative pressure wind force to suck the cooling liquid into the sleeve 3 under the rotation of the sleeve 3, avoid throwing away the coolant liquid because of the rotation of main shaft body 2, can improve the cooling effect when saving the coolant liquid, and baffle 8 can keep off sleeve 3 one end spun coolant liquid down, avoid the coolant liquid to splash everywhere and make the short circuit to the motor.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The utility model provides a numerical control machine tool tailstock main shaft, includes headstock (1) and centre gripping subassembly (4), its characterized in that, the fixed fixing bearing (13) that is equipped with in middle part of headstock (1) one end, the bottom mounting of headstock (1) inside one side is equipped with backup pad (11), backup pad (11) with rotate between fixing bearing (13) and be connected with main shaft body (2), the fixed surface of main shaft body (2) is equipped with belt pulley (9), the middle part fixedly connected with sleeve (3) of main shaft body (2), one side fixedly connected with feed liquor pipe (5) on headstock (1) top, centre gripping subassembly (4) are fixed to be set up the other end of main shaft body (2), centre gripping subassembly (4) include shell (41), two splint (42), six spring (43) and four fixed orifices (44), the fixed setting of shell (41) is in the other end of main shaft body (2), six spring (43) are fixed the setting respectively and are in the inside top of shell (41) and the bottom of inside, six two splint (42), two of the corresponding one end fixedly connected with of spring (43) the middle part of splint (42) with two fixed orificess (44) have all been seted up to the top and the bottom of shell (41).

2. The numerical control machine tool tailstock spindle of claim 1, characterized in that: the inner sides of one ends of the two clamping plates (42) are all round angles.

3. The numerical control machine tool tailstock spindle of claim 1, characterized in that: the bottom fixedly connected with of feed liquor pipe (5) spouts board (6), a plurality of spout has been seted up to the bottom of spouting board (6).

4. The numerical control machine tool tailstock spindle of claim 1, characterized in that: the inner wall of one side of the sleeve (3) is fixedly provided with a plurality of fan blades (7).

5. The numerical control machine tool tailstock spindle of claim 1, characterized in that: and a baffle (8) is fixedly arranged on one side in the spindle box (1).

6. The numerical control machine tool tailstock spindle of claim 1, characterized in that: one end of the main shaft body (2) is fixedly connected with a bevel gear (10).

7. The numerical control machine tool tailstock spindle of claim 6, characterized in that: screw holes are formed in one side of the top end and one side of the bottom end of the sleeve (3), two fixing grooves corresponding to the screw holes are formed in the surface of the main shaft body (2), and fixing screws (12) are connected to the inner walls of the two screw holes in a threaded mode.