CN210937155U

CN210937155U - Machining spindle for five-axis machining center

Info

Publication number: CN210937155U
Application number: CN201922026846.3U
Authority: CN
Inventors: 汪源; 蒋彦涛
Original assignee: Shenzhen Hongdarui Precision Hardware Co ltd
Current assignee: Shenzhen Hongdarui Precision Hardware Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-07
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a five-axis machining center is with processing main shaft relates to machining center technical field, which comprises a housin, the outside of going up top cap and lower top cap is all fixed the cup joint and is had the annular retainer plate, the bottom of going up top cap and lower top cap is all inlayed and is had the bearing, the inner circle fixed cup joint of bearing has the main shaft body, the inside cooling channel that spirals of having seted up of casing, the input of drawing liquid pump has the coolant liquid case through the pipeline intercommunication. Through the setting that the annular retainer plate has all fixedly been cup jointed in the top cap and the lower top cap outside, make top cap and casing installation firm down, do benefit to and improve stability, the smooth finish of processing has been improved, set up the cooling channel's that spirals through the inside of casing, can flow through spiraling of coolant liquid in the passageway, cool off the heat that the casing received, the cyclic utilization of coolant liquid, it is good to the radiating effect of processing main shaft, bring better use prospect.

Description

Machining spindle for five-axis machining center

Technical Field

The utility model relates to a machining center technical field, in particular to five-axis machining center is with processing main shaft.

Background

The machining center machine is a metal machining center machine tool. The metal processing center is a high-efficiency automatic machine tool which is usually composed of a control system, a servo system, a detection system, a mechanical transmission system and other auxiliary systems and is suitable for processing workpieces with complex shapes. The numerical control machine tool has more three shafts and less five shafts or more, and currently, five-shaft machining centers mostly move in X, Y and Z directions and rotate in two axial directions, so that the electric spindle and the machining platform move in five opposite directions finally, and complex machining can be realized.

When the existing machining main shaft for the five-axis machining center is used, the structure is complex, and the stability of the machining main shaft during operation is poor, so that the smoothness of workpiece machining is not enough.

In addition, the temperature of the spindle rises during high-speed operation, and the excessive heat can cause thermal deformation of the processing spindle, thereby influencing the rotation precision of the processing spindle.

Disclosure of Invention

The utility model discloses a main aim at provides a five-axis machining center is with processing main shaft, can effectively solve the current processing main shaft that proposes in the background art when using, the structure is complicated, and processing main shaft stability is not good when moving, and the smooth finish that leads to processing work piece is not enough, and the main shaft temperature can rise when high-speed moving, and the heat too big thermal deformation that can cause the processing main shaft influences the problem of gyration precision.

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

a machining main shaft for a five-axis machining center comprises a shell, wherein an upper top cover is arranged at the top end of the shell, a lower top cover is arranged at the bottom end of the shell, annular fixing rings are fixedly sleeved on the outer sides of the upper top cover and the lower top cover, bearings are inlaid at the bottoms of the upper top cover and the lower top cover and are located on the inner side of the shell, a main shaft body is fixedly sleeved on an inner ring of each bearing, a connecting end is fixedly connected to the top end of the main shaft body, fixing parts are symmetrically arranged on the outer side of the shell, a spiral cooling channel is formed in the shell, a channel inlet is formed in the bottom of the outer side of the shell, a channel outlet is formed in the top of the outer side of the shell, a liquid guide pipe is communicated with the inner part of the channel inlet, a liquid suction pump is communicated with one end of the liquid guide pipe, one end of the return pipe is communicated with the inside of the channel outlet.

Preferably, the annular fixing ring on the outer side of the upper top cover is fixedly connected with the top end of the shell through a fixing bolt.

Preferably, the annular fixing ring on the outer side of the lower top cover is fixedly connected with the bottom end of the shell through a fixing bolt.

Preferably, the top end of the spindle body penetrates through the inside of the upper top cover, and the bottom end of the spindle body penetrates through the inside of the lower top cover.

Preferably, an integrally formed structure is arranged between the fixing piece and the shell, and a threaded hole is formed in the front face of the fixing piece.

Compared with the prior art, the utility model discloses following beneficial effect has: the machining spindle for the five-axis machining center is characterized in that the outer sides of an upper top cover and a lower top cover are fixedly sleeved with annular fixing rings, one annular fixing ring is fixedly connected with the top end of a shell through a fixing bolt, the upper top cover and the shell can be stably installed, the other annular fixing ring is fixedly connected with the bottom end of the shell through a fixing bolt, the lower top cover and the shell are stably installed, a bearing can be stably kept, the stability of the spindle body during rotation is improved, the smoothness of workpiece machining is improved, the structure is simple, a spiral cooling channel is arranged inside the shell, one end of a liquid guide pipe communicated with the inside of a channel inlet is communicated with a liquid pump, cooling liquid in a cooling liquid tank can be pumped into the spiral cooling channel through the liquid pump, heat received by the shell is cooled through spiral flowing of the cooling liquid in the channel, and the cooling liquid flows into the cooling liquid tank through a return pipe in the channel outlet, the cooling liquid is recycled, the heat dissipation effect on the machining spindle is good, and the thermal deformation of the machining spindle caused by heat is avoided, so that the rotation precision of the machining spindle is not influenced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

In the figure: 1. a housing; 2. a top cover is arranged; 3. a lower top cover; 4. an annular retainer ring; 5. a bearing; 6. a main shaft body; 7. a connecting end; 8. a fixing member; 9. a threaded hole; 10. a serpentine cooling channel; 11. a channel inlet; 12. a channel outlet; 13. a catheter; 14. a liquid pump; 15. a coolant tank; 16. a return pipe.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-2, a five-axis machining center is provided with a machining spindle, which includes a housing 1, an upper top cover 2 is disposed at the top end of the housing 1, a lower top cover 3 is disposed at the bottom end of the housing 1, annular retainer rings 4 are fixedly sleeved on the outer sides of the upper top cover 2 and the lower top cover 3, bearings 5 are respectively embedded at the bottoms of the upper top cover 2 and the lower top cover 3, the bearings 5 are located at the inner side of the housing 1, a spindle body 6 is fixedly sleeved on the inner ring of the bearings 5, the spindle body 6 can rotate under the cooperation of the bearings 5, a connecting end 7 is fixedly connected to the top end of the spindle body 6, the connecting end 7 is used for connecting with a driving mechanism of the machining center, fixing members 8 are symmetrically disposed on the outer side of the housing 1, a spiral cooling channel 10 is disposed inside the housing 1, the spiral cooling channel 10 is used for circulating a cooling, the bottom in the casing 1 outside has been seted up passageway entry 11 for the entering of coolant liquid, passageway export 12 has been seted up at the top in the casing 1 outside, a flow for the coolant liquid, the inside intercommunication of passageway entry 11 has catheter 13, the one end intercommunication of catheter 13 has drawing liquid pump 14, the input of drawing liquid pump 14 has coolant liquid case 15 through the pipeline intercommunication, the inlet end intercommunication of coolant liquid case 15 has back flow 16, the one end of back flow 16 is linked together with the inside of passageway export 12.

The annular fixing ring 4 on the outer side of the upper top cover 2 is fixedly connected with the top end of the shell 1 through a fixing bolt, so that the upper top cover 2 and the shell 1 can be stably installed; the annular fixing ring 4 on the outer side of the lower top cover 3 is fixedly connected with the bottom end of the shell 1 through a fixing bolt, so that the lower top cover 3 and the shell 1 are stably installed; the top end of the main shaft body 6 is arranged in the upper top cover 2 in a penetrating way, and the bottom end of the main shaft body 6 is arranged in the lower top cover 3 in a penetrating way; be integrated into one piece structure between mounting 8 and the casing 1, threaded hole 9 is seted up on mounting 8's front, does benefit to the fixed of mounting 8.

It should be noted that, the utility model relates to a five-axis machining center is with processing main shaft, when using, the main shaft body 6 is connected with the actuating mechanism of the machining center through the link 7, the mounting 8 is fixed through the bolt and the fixed establishment of the machining center, firstly, because the outside of the upper top cap 2 and the lower top cap 3 are both fixedly sleeved with the annular retainer plate 4, an annular retainer plate 4 is fixedly connected with the top end of the shell 1 through the fixing bolt, the upper top cap 2 and the shell 1 can be stably installed, another annular retainer plate 4 is fixedly connected with the bottom end of the shell 1 through the fixing bolt, the lower top cap 3 and the shell 1 can be stably installed, and further the bearing 5 can be stably maintained, which is favorable for improving the stability of the main shaft body 6 when rotating, the smoothness of the workpiece processing is improved, the structure is simple, when cooling the processing main shaft, because the inside of the shell 1 is provided with the spiral cooling, with the inside catheter 13's of intercommunication of passageway entry 11 one end and drawing liquid pump 14 intercommunication, and during the high-speed operation of main shaft body 6, bearing 5 produces the heat transfer and gives casing 1, can spiral cooling channel 10 through the coolant liquid suction of drawing liquid pump 14 in with coolant liquid case 15, flow through spiraling of coolant liquid in the passageway, cool off the heat that casing 1 received, the coolant liquid flows into coolant liquid case 15 again through back flow 16 in passageway outlet 12, realize the cyclic utilization of coolant liquid, it is good to the radiating effect of processing main shaft, avoid the heat to cause the heat altered shape of heat of processing main shaft, influence the gyration precision of processing main shaft, be favorable to people's use, and is practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a five machining centers are with processing main shaft, includes casing (1), its characterized in that: the top of the shell (1) is provided with an upper top cover (2), the bottom of the shell (1) is provided with a lower top cover (3), the outer sides of the upper top cover (2) and the lower top cover (3) are fixedly sleeved with an annular fixing ring (4), the bottoms of the upper top cover (2) and the lower top cover (3) are respectively inlaid with a bearing (5), the bearing (5) is positioned at the inner side of the shell (1), an inner ring of the bearing (5) is fixedly sleeved with a main shaft body (6), the top end of the main shaft body (6) is fixedly connected with a connecting end (7), the outer side of the shell (1) is symmetrically provided with a fixing part (8), a spiral cooling channel (10) is arranged inside the shell (1), the bottom of the outer side of the shell (1) is provided with a channel inlet (11), the top of the outer side of the shell (1) is provided with a channel outlet (12), the interior of the channel, one end of the liquid guide pipe (13) is communicated with a liquid pump (14), the input end of the liquid pump (14) is communicated with a cooling liquid tank (15) through a pipeline, the liquid inlet end of the cooling liquid tank (15) is communicated with a return pipe (16), and one end of the return pipe (16) is communicated with the interior of the channel outlet (12).

2. The machining spindle for a five-axis machining center according to claim 1, characterized in that: and the annular fixing ring (4) on the outer side of the upper top cover (2) is fixedly connected with the top end of the shell (1) through a fixing bolt.

3. The machining spindle for a five-axis machining center according to claim 1, characterized in that: and the annular fixing ring (4) on the outer side of the lower top cover (3) is fixedly connected with the bottom end of the shell (1) through a fixing bolt.

4. The machining spindle for a five-axis machining center according to claim 1, characterized in that: the top end of the main shaft body (6) penetrates through the inside of the upper top cover (2), and the bottom end of the main shaft body (6) penetrates through the inside of the lower top cover (3).

5. The machining spindle for a five-axis machining center according to claim 1, characterized in that: an integrated structure is arranged between the fixing piece (8) and the shell (1), and a threaded hole (9) is formed in the front face of the fixing piece (8).