Rotary sealing structure of milling box of vertical turning and milling cutter frame

Abstract

The utility model discloses a rotary sealing structure of a milling box of a vertical turning and milling cutter frame, and belongs to the technical field of machine tools. Rotary sealing structures are fixed to the positions, in the box body, of bearings of the turn-milling main shaft and comprise fixed rings and rotating rings, the fixed rings fixed to the box body are arranged above the bearings arranged below the turn-milling main shaft in a sleeving mode, the fixed rings are also arranged at the positions, above the box body, of the bearings, and the rotating rings fixed to the turn-milling main shaft are buckled to the tops of the fixed rings A below the box body. And the other rotating ring is positioned in the fixed ring above and is fixed on the turning and milling main shaft, and a gap is formed between the inner wall of the fixed ring and the outer wall of the rotating ring. An air film is formed through rotation of the ring synchronously rotating with the shaft link and relative movement of the fixing ring fixed on the box body, oil leakage is effectively prevented, meanwhile, the fixing ring is not in contact with the turn-milling main shaft, heat cannot be generated, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vertical turning and milling cutter holder milling box rotary sealing structure and belongs to the technical field of machine tools. BACKGROUND

[0002] With the vigorous development of the machine tool industry, the types and uses of machine tools gradually increase, and the requirements for existing machine tools are higher and higher, especially higher requirements for the sealing of the turning and milling cutter holder milling box.

[0003] The conventional sealing structure uses a rotary sealing ring to realize sealing, and the rotary sealing ring in contact with the turning and milling spindle generates high temperature after the machine tool works for a period of time, which makes the sealing effect of the rotary sealing ring worse, resulting in the leakage phenomenon at the turning and milling spindle, which seriously affects the use of the machine tool. SUMMARY

[0004] In order to solve the above problems in the prior art, the utility model provides a vertical turning and milling cutter holder milling box rotary sealing structure, which has the characteristics of convenient installation, reliable sealing, no heat generation, long service life, and easy maintenance.

[0005] The utility model discloses a vertical turning and milling cutter holder milling box rotary sealing structure, the rotary sealing structure is fixed above the bearing below the turning and milling spindle in the box body, the rotary sealing structure is fixed above the bearing above the turning and milling spindle in the box body, and the hollow rotary encoder is located above the rotary sealing structure above the upper end cover; the rotary sealing structure comprises a fixed ring A, a rotary ring A, a rotary ring B and a fixed ring B, the fixed ring A is fixed above the bearing below the turning and milling spindle in the box body through screws, the bottom of the fixed ring A is pressed on the outer ring of the bearing, the flange of the outer wall of the fixed ring A is fixedly connected with the box body through screws, the rotary ring A is sleeved on the turning and milling spindle and buckled on the top end of the fixed ring A, the rotary ring A is fixedly connected with the turning and milling spindle, and a gap is formed between the inner wall of the rotary ring A and the outer wall of the fixed ring A. The bottom of the rotary ring B is pressed on the inner ring of the bearing above the turning and milling spindle in the box body, the rotary ring B is screwed together with the turning and milling spindle through screws, the fixed ring B is buckled above the rotary ring B and seals the shaft hole of the turning and milling spindle above the box body, the end cover is buckled on the fixed ring B, and a gap is formed between the inner wall of the fixed ring B and the outer wall of the rotary ring B.

[0006] The utility model discloses a vertical turning and milling cutter holder milling box rotary sealing structure, the rotary sealing structure is fixed above the bearing below the turning and milling spindle in the box body, the rotary sealing structure is fixed above the bearing above the turning and milling spindle in the box body, and the hollow rotary encoder is located above the rotary sealing structure above the upper end cover; the rotary sealing structure comprises a fixed ring A, a rotary ring A, a rotary ring B and a fixed ring B, the fixed ring A is fixed above the bearing below the turning and milling spindle in the box body through screws, the bottom of the fixed ring A is pressed on the outer ring of the bearing, the flange of the outer wall of the fixed ring A is fixedly connected with the box body through screws, the rotary ring A is sleeved on the turning and milling spindle and buckled on the top end of the fixed ring A, the rotary ring A is fixedly connected with the turning and milling spindle, and a gap is formed between the inner wall of the rotary ring A and the outer wall of the fixed ring A. The bottom of the rotary ring B is pressed on the inner ring of the bearing above the turning and milling spindle in the box body, the rotary ring B is screwed together with the turning and milling spindle through screws, the fixed ring B is buckled above the rotary ring B and seals the shaft hole of the turning and milling spindle above the box body, the end cover is buckled on the fixed ring B, and a gap is formed between the inner wall of the fixed ring B and the outer wall of the rotary ring B. BRIEF DESCRIPTION OF DRAWINGS

[0007] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0008] Figure 1 It is a structural schematic view of the utility model.

[0009] Figure 2 It is an enlarged view of A of the utility model.

[0010] Figure 3 It is an enlarged view of B of the utility model.

[0011] Marked numbers in the drawing:

[0012] 1, motor, 2, box, 3, gear, 4, bearing, 5, fixed ring A, 6, rotating ring A, 7, rotating ring B, 8, fixed ring B, 9, hollow rotary encoder, 10, end cover, 11, water baffle, 12, turning milling spindle, 13, oil inlet, 14, oil outlet. Specific embodiments

[0013] As Figure 1 Indicated, a vertical turning and milling tool holder milling box rotary sealing structure, including motor 1, box 2, gear 3, bearing 4, rotary sealing structure, hollow rotary encoder 9, end cover 10, water baffle 11 and turning milling spindle 12.

[0014] The motor 1 of vertical turning and milling tool holder milling box is located at the left upper side of the box 2, the upper and lower sides of the box 2 are all equipped with oil inlet 13, the right lower side of the box 2 is equipped with oil outlet 14, the motor 1 in the box 2 is engaged with the turning milling spindle 12 in the box 2 through gear 3, the turning milling spindle 12 is located at the right side of the box 2, and the upper and lower ends thereof extend from the upper and lower ends of the box 2, the bearing 4 is arranged between the turning milling spindle 12 and the box 2, the end cover 10 is arranged on the turning milling spindle 12 on the box 2, and the water baffle 11 is arranged on the turning milling spindle 12 at the outer end of the end cover 10.

[0015] The rotary sealing structure is fixed above the bearing 4 of the turning-milling spindle 12 in the box 2 of the turning-milling cutter holder milling box, and comprises a rotating ring B7 and a fixed ring B8. The bottom of the rotating ring B7 is pressed against the inner ring of the bearing 4 above the turning-milling spindle 12 in the box 1, and the rotating ring B7 is screwed together with the turning-milling spindle 12. The fixed ring B8 is buckled above the rotating ring B7, and seals the shaft hole of the turning-milling spindle 12 above the box 2. The end cover 10 is screwed together with the fixed ring B8, and the hollow rotary encoder 9 is located above the fixed ring B8 in the end cover 10 above. There is a gap between the inner wall of the fixed ring B8 and the outer wall of the rotating ring B7. The rotating ring B7 rotates with the turning-milling spindle 12, and the fixed ring B8 is installed on the box 12 and does not rotate with the turning-milling spindle 12. When the shaft rotates, an air film is formed between the inner wall of the fixed ring and the outer wall of the rotating ring, preventing oil from flowing to the other side of the rotary sealing structure above the turning-milling spindle 12, and achieving sealing effect.

[0016] The rotary sealing structure is fixed above the bearing 4 of the turning-milling spindle 12 in the box 2 of the turning-milling cutter holder milling box, and comprises a rotating ring B7 and a fixed ring B8. The bottom of the rotating ring B7 is pressed against the inner ring of the bearing 4 above the turning-milling spindle 12 in the box 1, and the rotating ring B7 is screwed together with the turning-milling spindle 12. The fixed ring B8 is buckled above the rotating ring B7, and seals the shaft hole of the turning-milling spindle 12 above the box 2. The end cover 10 is screwed together with the fixed ring B8, and the hollow rotary encoder 9 is located above the fixed ring B8 in the end cover 10 above. There is a gap between the inner wall of the fixed ring B8 and the outer wall of the rotating ring B7. The rotating ring B7 rotates with the turning-milling spindle 12, and the fixed ring B8 is installed on the box 12 and does not rotate with the turning-milling spindle 12. When the shaft rotates, an air film is formed between the inner wall of the fixed ring and the outer wall of the rotating ring, preventing oil from flowing to the other side of the rotary sealing structure above the turning-milling spindle 12, and achieving sealing effect.

[0017] The rotary sealing structure is fixed above the bearing 4 of the turning-milling spindle 12 in the box 2 of the turning-milling cutter holder milling box, and comprises a rotating ring B7 and a fixed ring B8. The bottom of the rotating ring B7 is pressed against the inner ring of the bearing 4 above the turning-milling spindle 12 in the box 1, and the rotating ring B7 is screwed together with the turning-milling spindle 12. The fixed ring B8 is buckled above the rotating ring B7, and seals the shaft hole of the turning-milling spindle 12 above the box 2. The end cover 10 is screwed together with the fixed ring B8, and the hollow rotary encoder 9 is located above the fixed ring B8 in the end cover 10 above. There is a gap between the inner wall of the fixed ring B8 and the outer wall of the rotating ring B7. The rotating ring B7 rotates with the turning-milling spindle 12, and the fixed ring B8 is installed on the box 12 and does not rotate with the turning-milling spindle 12. When the shaft rotates, an air film is formed between the inner wall of the fixed ring and the outer wall of the rotating ring, preventing oil from flowing to the other side of the rotary sealing structure above the turning-milling spindle 12, and achieving sealing effect.

Claims

1. A vertical turning and milling tool holder milling box rotary seal structure, comprising a motor (1), a box (2), a gear (3), a bearing (4), a rotary seal structure, a hollow rotary encoder (9), an end cover (10), a water baffle ring (11) and a turning and milling spindle (12), the motor (1) is located on the left side of the upper part of the box (2), the upper and lower parts of the box (2) are provided with oil inlet (13), the right lower part of the box (2) is provided with oil outlet (14), the motor (1) in the box (2) is engaged with the turning and milling spindle (12) in the box (2) through the gear (3), the turning and milling spindle (12) is located on the right side of the box (2), the upper and lower ends of which extend out of the upper and lower ends of the box (2), the turning and milling spindle (12) and the box (2) are provided with a bearing (4), the box (2) is provided with an end cover (10) sleeved on the turning and milling spindle (12), the outer end of the end cover (10) is provided with a water baffle ring (11) sleeved on the turning and milling spindle (12), characterized in that: The box (2) is fixed with rotary sealing structure below the bearing (4) of the turning and milling spindle (12), and is fixed with rotary sealing structure above the bearing (4) of the turning and milling spindle (12) above, and the hollow rotary encoder (9) is located above the rotary sealing structure above the upper end cover (10); the rotary sealing structure comprises a fixed ring A (5), a rotary ring A (6), a rotary ring B (7) and a fixed ring B (8), the fixed ring A (5) is fixed on the bearing (4) below the turning and milling spindle (12) in the box (2) by screws, the bottom of the fixed ring A (5) is pressed on the outer ring of the bearing (4), the flange of the outer wall of the fixed ring A (5) is fixedly connected with the box (2) by screws, the rotary ring A (6) is sleeved on the turning and milling spindle (12) and buckled on the top of the fixed ring A (5), the rotary ring A (6) is fixedly connected with the turning and milling spindle (12), and a gap is formed between the inner wall of the rotary ring A (6) and the outer wall of the fixed ring A (5); the bottom of the rotary ring B (7) is pressed on the inner ring of the bearing (4) above the turning and milling spindle (12) in the box (2), the rotary ring B (7) is screwed together with the turning and milling spindle (12) by screws, the fixed ring B (8) is buckled on the rotary ring B (7) and seals the shaft hole of the turning and milling spindle (12) above the box (2), the end cover (10) is buckled on the fixed ring B (8), and a gap is formed between the inner wall of the fixed ring B (8) and the outer wall of the rotary ring B (7).

Images