Compact rotary table and main shaft integrated mechanism

Abstract

The utility model belongs to the technical field of machine tool equipment, and relates to a compact rotary table and main shaft integrated mechanism which comprises a seat body, a rotary table seat is installed on the seat body, a rotary table is rotatably arranged on the rotary table seat, a shaft sleeve is arranged in a center hole of the rotary table, the shaft sleeve and the rotary table can rotate synchronously, and the rotation angle of the rotary table is positioned by an encoder. A main shaft is rotationally arranged in an inner hole of the shaft sleeve, a first large synchronous pulley is mounted on the main shaft, and the first large synchronous pulley is driven by a driving assembly to operate; an air guide sliding ring is installed on the end face of the rotary table base, a shaft sleeve penetrates through the air guide sliding ring, an annular groove is formed in the air guide sliding ring, and the outer end of the annular groove is communicated with an air inlet of the air guide sliding ring. The spindle and rotary table integrated machine is reasonable and ingenious in structure, targeted improvement is carried out aiming at the problems that a spindle and a rotary table of similar products in the prior art are not integrated, the structural size is large, and the machining range is small, and the spindle and the rotary table are integrally arranged, so that the structure is compact.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool equipment and relates to a compact turntable and spindle integrated mechanism. Background Art

[0002] At present, the high-speed continuous rotating mechanical spindle and the low-speed high-precision angle position control turntable of the domestic large-scale multifunctional ultra-precision head are not integrated. The ultra-precision head is too large and the processing range of the machine tool is small, which is not conducive to the processing requirements of multiple varieties and specifications of large-scale multifunctional ultra-precision machines. Summary of the Invention

[0003] In view of the above problems, the utility model provides a compact turntable and spindle integrated mechanism, in which the turntable and the spindle are integrated together to form an assembly, so that the overall structural layout is compact and reasonable.

[0004] According to the technical solution of the utility model: a compact turntable and spindle integrated mechanism includes a base body, a turntable seat is installed on the base body, and a turntable is rotatably arranged on the turntable seat, characterized in that a shaft sleeve is arranged in the center hole of the turntable, the shaft sleeve and the turntable can rotate synchronously, and the rotation angle of the turntable is determined by an encoder positioning angle;

[0005] A main shaft is rotatably arranged in the inner hole of the shaft sleeve, and a first large synchronous pulley is installed on the main shaft, and the first large synchronous pulley is driven to operate by the driving assembly;

[0006] An air guide slip ring is installed on the end surface of the turntable seat, and the sleeve passes through the air guide slip ring. An annular groove is arranged inside the air guide slip ring. The outer end of the annular groove is connected to the air inlet of the air guide slip ring, and the inner end of the annular groove is connected to the air guide hole of the sleeve. The air guide hole extends along the axial direction of the sleeve, and an air outlet is arranged at the other axial end of the sleeve.

[0007] As a further improvement of the present invention, bearings are respectively provided at both ends of the inner hole of the sleeve, the main shaft is mounted on the bearings, and a spacer is sleeved on the main shaft to form a positioning for the inner sides of the bearings at both ends;

[0008] The axial end of the sleeve is fixedly connected to the sleeve end cover, and the sleeve end cover positions the outer end of the corresponding bearing; the outer end of the bearing at the other axial end of the sleeve is positioned by the shaft shoulder of the main shaft.

[0009] As a further improvement of the present invention, the drive assembly includes a servo motor mounted on the seat body, the output shaft of the servo motor is mounted with a first small synchronous pulley, and a first synchronous belt is tensioned on the first small synchronous pulley and the first large synchronous pulley.

[0010] As a further improvement of the present invention, an encoder is installed on the seat body, a second small synchronous pulley is installed on the encoder, a second large synchronous pulley is installed on the sleeve end cover, and a second synchronous belt is tensioned on the second large synchronous pulley and the second small synchronous pulley.

[0011] As a further improvement of the present invention, rotary sealing rings are respectively provided in the groove bodies on both sides of the annular groove in the air-guiding sliding ring.

[0012] As a further improvement of the present invention, four rotary sealing rings are provided, and two rotary sealing rings are respectively provided on both sides of the annular groove.

[0013] As a further improvement of the present invention, a radially extending air outlet is provided at the end of the sleeve, and the air outlet is communicated with the air guide hole.

[0014] The technical effect of the utility model is that the utility model has a reasonable and ingenious structure, and makes targeted improvements to the problem that the spindle and turntable of similar products in the prior art are not integrated, resulting in a large structural size and a small processing range. By integrating the spindle and turntable, a compact structure can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 for Figure 1 Left view of .

[0017] Figure 3 for Figure 2 A partial enlarged view of point I in the middle. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should fall within the scope of protection of the present invention.

[0020] Figure 1-3It includes a base 1, a servo motor 2, a first small synchronous pulley 3, a turntable 4, a first synchronous belt 5, a turntable seat 6, a sleeve 7, a sleeve end cover 8, a main shaft 9, a first large synchronous pulley 10, a second large synchronous pulley 11, an encoder 12, a second small synchronous pulley 13, a second synchronous belt 14, a bearing 15, an air guide slip ring 16, a rotary sealing ring 17, an air guide hole 18, an annular groove 19, etc.

[0021] like Figure 1-3 As shown, the utility model is a compact turntable and spindle integrated mechanism, including a base body 1, a turntable seat 6 installed on the base body 1, a turntable 4 is rotatably set on the turntable seat 6, a shaft sleeve 7 is set in the center hole of the turntable 4, the shaft sleeve 7 and the turntable 4 can rotate synchronously, the shaft sleeve 7 and the turntable 4 are fixed by screws, and the rotation angle of the turntable 4 is positioned by the encoder 12.

[0022] A main shaft 9 is rotatably arranged in the inner hole of the shaft sleeve 7, and a first large synchronous pulley 10 is installed on the main shaft 9. The first large synchronous pulley 10 is fixed to the main shaft 9 through a tightening sleeve, and the first large synchronous pulley 10 is driven by the driving assembly.

[0023] An air-guiding slip ring 16 is installed on the end face of the turntable seat 6. The air-guiding slip ring 16 is fixed to the turntable seat 6 by screws. The shaft sleeve 7 passes through the air-guiding slip ring 16. An annular groove 19 is provided inside the air-guiding slip ring 16. The outer end of the annular groove 19 is connected to the air inlet of the air-guiding slip ring 16, and the inner end of the annular groove 19 is connected to the air-guiding hole 18 of the shaft sleeve 7. The air-guiding hole 18 extends along the axial direction of the shaft sleeve 7, and an air outlet is provided at the other axial end of the shaft sleeve 7. During operation, compressed air enters the annular groove 19 inside the air guide slip ring 16 through the air inlet. Rotary sealing rings 17 are set on both sides of the annular groove 19 to prevent leakage. The compressed air is introduced into the air guide hole 18 along the annular groove 19 and leads to the air outlet. When the sleeve 7 rotates together with the turntable 4, the air guide hole 18 and the annular groove 19 on the sleeve 7 are always connected. When the turntable 4 rotates, the air path is still unobstructed and the structure is compact. The encoder 12 and the servo motor 2 are reasonably installed inside the base body 1, ensuring the compactness of the mechanism.

[0024] Bearings 15 are provided at both axial ends of the inner hole of the sleeve 7, and the main shaft 9 is mounted on the bearings 15. A spacer is sleeved on the main shaft 9 to position the inner sides of the bearings at both ends.

[0025] The axial end of the sleeve 7 is fixedly connected to the sleeve end cover 8, which positions the outer end of the corresponding bearing; the outer end of the bearing at the other axial end of the sleeve 7 is positioned by the shoulder of the main shaft 9.

[0026] The drive assembly includes a servo motor 2 installed on the base body 1, and the output shaft of the servo motor 2 is installed with a first small synchronous pulley 3. The first small synchronous pulley 3 is fixed to the output shaft of the servo motor 2 through a tightening sleeve. The first small synchronous pulley 3 and the first large synchronous pulley 10 are tensioned with a first synchronous belt 5.

[0027] An encoder 12 is installed on the base body 1 , a second small synchronous pulley 13 is installed on the encoder 12 , a second large synchronous pulley 11 is installed on the sleeve end cover 8 , and a second synchronous belt 14 is tensioned on the second large synchronous pulley 11 and the second small synchronous pulley 13 .

[0028] Rotary sealing rings 17 are respectively provided in the groove bodies on both sides of the air guide sliding ring 16 corresponding to the annular groove 19.

[0029] Four rotary sealing rings 17 are provided, and two rotary sealing rings 17 are respectively provided on both sides of the annular groove 19 .

[0030] A radially extending air outlet is provided at the end of the shaft sleeve 7 , and the air outlet is communicated with the air guide hole 18 .

[0031] The utility model installs the main shaft 9 inside the turntable 4, fixes the air guide slip ring 16 on the turntable seat 6, and the air inlet is connected to the air outlet of the shaft sleeve 7 in a static or rotating state through the annular groove 19.

[0032] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A compact turntable and spindle integrated mechanism, comprising a base (1), a turntable seat (6) mounted on the base (1), a turntable (4) rotatably arranged on the turntable seat (6), characterized in that: A shaft sleeve (7) is provided in the center hole of the turntable (4), and the shaft sleeve (7) and the turntable (4) can rotate synchronously, and the rotation angle of the turntable (4) is positioned by an encoder (12); A main shaft (9) is rotatably arranged in the inner hole of the shaft sleeve (7), a first large synchronous pulley (10) is installed on the main shaft (9), and the first large synchronous pulley (10) is driven to operate by a driving assembly; An air guide ring (16) is installed on the end surface of the turntable seat (6), and the shaft sleeve (7) passes through the air guide ring (16). An annular groove (19) is provided inside the air guide ring (16), and the outer end of the annular groove (19) is connected to the air inlet of the air guide ring (16), and the inner end of the annular groove (19) is connected to the air guide hole (18) of the shaft sleeve (7). The air guide hole (18) extends along the axial direction of the shaft sleeve (7), and an air outlet is provided at the other axial end of the shaft sleeve (7).

2. The compact turntable and spindle integrated mechanism according to claim 1, characterized in that: Bearings (15) are respectively provided at both axial ends of the inner hole of the sleeve (7), the main shaft (9) is mounted on the bearings (15), and a spacer is sleeved on the main shaft (9) to form a positioning for the inner sides of the bearings at both ends; The axial end of the sleeve (7) is fixedly connected to the sleeve end cover (8), and the sleeve end cover (8) positions the outer end of the corresponding bearing; the outer end of the bearing at the other axial end of the sleeve (7) is positioned by the shoulder of the main shaft (9).

3. The compact turntable and spindle integrated mechanism according to claim 1, characterized in that: The drive assembly comprises a servo motor (2) mounted on a seat body (1); a first small synchronous pulley (3) is mounted on an output shaft of the servo motor (2); and a first synchronous belt (5) is tensioned on the first small synchronous pulley (3) and a first large synchronous pulley (10).

4. The compact turntable and spindle integrated mechanism according to claim 2, characterized in that: An encoder (12) is mounted on the seat (1), a second small synchronous pulley (13) is mounted on the encoder (12), a second large synchronous pulley (11) is mounted on the shaft sleeve end cover (8), and a second synchronous belt (14) is tensioned on the second large synchronous pulley (11) and the second small synchronous pulley (13).

5. The compact turntable and spindle integrated mechanism according to claim 1, characterized in that: Rotating sealing rings (17) are respectively provided in the groove bodies on both sides of the air guide slip ring (16) corresponding to the annular groove (19).

6. The compact turntable and spindle integrated mechanism according to claim 5, characterized in that: Four rotary sealing rings (17) are provided, with two rotary sealing rings (17) respectively provided on both sides of the annular groove (19).

7. The compact turntable and spindle integrated mechanism according to claim 1, characterized in that: A radially extending air outlet is provided at the end of the shaft sleeve (7), and the air outlet is communicated with the air guide hole (18).

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