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CN-121972712-A - Double-sided milling device for bearing seat at tail end of machine tool

CN121972712ACN 121972712 ACN121972712 ACN 121972712ACN-121972712-A

Abstract

The invention discloses a double-sided milling device of a bearing seat at the tail end of a machine tool, which relates to the technical field of milling and aims at solving the technical problem of low processing efficiency caused by multiple clamping and scattered working procedures in the traditional processing, and comprises a frame, wherein a lifting mechanism is arranged in an inner cavity of the frame and comprises a lifting table, a reciprocating mechanism is arranged at the top of the lifting table and comprises a movable table, a counter-moving mechanism is arranged at the top of the movable table and comprises a fixed frame, a first movable frame and a second movable frame, an inner milling mechanism is arranged at the top of the first movable frame, an outer milling mechanism is arranged at the top of the second movable frame, and a driving mechanism is arranged at the top of the fixed frame; the top of the frame is provided with a clamping mechanism, and the driving mechanism can synchronously drive the inner milling mechanism to do circular track movement and drive the outer milling mechanism to do omega-shaped track movement. The milling machine has the advantage of being capable of continuously milling the inner surface, the outer special-shaped surface and the bilateral planes.

Inventors

  • CHEN LEI

Assignees

  • 象山鑫佰机械制造有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. The double-sided milling device for the bearing seat at the tail end of the machine tool is characterized by comprising a frame (1), wherein a lifting mechanism (2) is arranged in an inner cavity of the frame (1), the lifting mechanism (2) comprises a lifting table (201), a reciprocating mechanism (3) is arranged at the top of the lifting table (201), the reciprocating mechanism (3) comprises a moving table (301), a counter-moving mechanism (4) is arranged at the top of the moving table (301), and the counter-moving mechanism (4) comprises a fixed frame (403), a first moving frame (401) and a second moving frame (402) which can move oppositely or reversely; An inner milling mechanism (5) is arranged at the top of the first movable frame (401), an outer milling mechanism (6) is arranged at the top of the second movable frame (402), and a driving mechanism (7) is arranged at the top of the fixed frame (403); a clamping mechanism (8) is arranged at the top of the frame (1); the driving mechanism (7) can synchronously drive the inner milling mechanism (5) to do circular track movement and drive the outer milling mechanism (6) to do omega-shaped track movement; -the inner milling mechanism (5) comprises a first milling cutter (501) and the outer milling mechanism (6) comprises a second milling cutter (601); When the first moving frame (401) and the second moving frame (402) move oppositely, the first milling cutter (501) and the second milling cutter (601) can be distributed on two side walls of the bearing seat main body (9) and used for milling two side walls of the bearing seat main body (9), when the first moving frame (401) and the second moving frame (402) move oppositely, the first milling cutter (501) can extend into an inner cavity of the bearing seat main body (9) and be attached to the circumferential inner wall of the bearing seat main body, and the second milling cutter (601) can extend into the top area of the bearing seat main body (9) and be attached to the top omega-shaped wall of the bearing seat main body (9) and be used for milling the circumferential inner wall of the bearing seat main body (9) and the top omega-shaped wall of the bearing seat main body.
  2. 2. The double-sided milling device of the machine tool tail end bearing seat according to claim 1, wherein the lifting mechanism (2) is a cylinder driving type lifting structure, the bottom of the lifting table (201) is fixedly connected with the lifting end of the cylinder driving type lifting structure, the top of the frame (1) is provided with a plurality of guide posts (101), and the lifting table (201) is movably sleeved on the guide posts (101).
  3. 3. The double-sided milling device of the machine tool tail end bearing seat according to claim 1, wherein the reciprocating mechanism (3) is a motor-driven screw rod linear moving structure, and the bottom of the moving table (301) is fixedly connected with the moving end of the screw rod linear moving structure.
  4. 4. The double-sided milling device of the machine tool tail end bearing seat according to claim 1, wherein the opposite moving mechanism (4) is a motor-driven bidirectional screw rod linear moving structure, two sections of external threads with opposite screwing directions are sequentially arranged on a shaft body of the bidirectional screw rod along an axial direction, the bottom of the first moving frame (401) is connected with a moving end on one of the external threads, and the bottom of the second moving frame (402) is connected with a moving end on the other external thread, so that the first moving frame (401) and the second moving frame (402) can synchronously move in opposite directions or in opposite directions under the driving of the bidirectional screw rod.
  5. 5. A double-sided milling device of a machine tool tail end bearing housing according to claim 1, characterized in that the clamping end of the clamping mechanism (8) is arranged between the inner milling mechanism (5) and the outer milling mechanism (6), the clamping mechanism (8) being used for clamping and fixing the bearing housing body (9).
  6. 6. The double-sided milling device of the machine tool tail end bearing seat according to claim 1, wherein the inner milling mechanism (5) further comprises a supporting seat (502) and a fixed seat (503) which are arranged at the top of the first movable frame (401), a rotating disc (504) is rotatably arranged in an inner cavity of the supporting seat (502), one side wall of the rotating disc (504) is connected with a large fluted disc (506) through a rotating column (505), the rotating column (505) movably penetrates through the side wall of the fixed seat (503), a first milling machine (507) is eccentrically arranged on the other side wall of the rotating disc (504), and the first milling machine (507) comprises the first milling cutter (501).
  7. 7. A double-sided milling device of a machine tool tailstock bearing housing according to claim 6, characterized in that the external milling mechanism (6) comprises a support plate (602) connected to the top of the second moving frame (402), a guide plate (603), and a limiting plate (605), the side wall of the limiting plate (605) is slidably arranged with a driving plate (604); The guide plate (603) is arranged between the supporting plate (602) and the driving plate (604), and the supporting plate (602) and the top of the guide plate (603) are connected through a fixing plate (606); The side wall of the supporting plate (602) is provided with a supporting groove (6021), a second milling machine (607) is movably arranged in the supporting groove (6021), and the second milling machine (607) comprises a second milling cutter (601); The section of the supporting groove (6021) is of an omega-shaped structure, a plurality of sliding rails (6022) are arranged on the inner side wall of the supporting groove (6021), a plurality of annular sliding grooves (6071) are formed in the outer wall of the circumference of the shell of the second milling machine (607), and the second milling machine (607) is in sliding fit with the sliding rails (6022) through the annular sliding grooves (6071); the side wall of the second milling machine (607) is connected with a driving column (608); Omega-shaped grooves (6031) are formed in the side walls of the guide plates (603); An inverted V-shaped groove (6041) is formed in the side wall of the driving plate (604); The driving post (608) is movably arranged in the omega-shaped groove (6031) and the inverted V-shaped groove (6041); The side wall of the limiting plate (605) is connected with a plurality of guide ring blocks (6051), the side wall of the driving plate (604) is connected with a plurality of sliding columns (6042), and the sliding columns (6042) are arranged in the inner cavities of the guide ring blocks (6051) in a sliding mode; The top of the driving plate (604) is connected with a toothed plate (6043).
  8. 8. The double-sided milling device of the machine tool tail end bearing seat according to claim 7, wherein a plurality of sliding rods (404) are arranged on the inner side wall of the fixed frame (403); the top of the fixed seat (503) is in sliding fit with the sliding rod (404) through a first sliding seat (508); the top of the fixed plate (606) is in sliding fit with the sliding rod (404) through a sliding seat II (609); A first transmission gear (509) is rotatably arranged at the top of the fixed seat (503), and the first transmission gear (509) is in meshed connection with the large fluted disc (506); a transmission gear II (610) is rotatably arranged at the top of the fixed plate (606), and the transmission gear II (610) is in meshed connection with the toothed plate (6043); The first transmission gear (509) and the second transmission gear (610) have the same pinion structure, and the first transmission gear (509) and the large fluted disc (506) form a speed reduction transmission mechanism; the driving mechanism (7) can synchronously drive the first transmission gear (509) and the second transmission gear (610) to rotate.
  9. 9. The double-sided milling device of the machine tool tail end bearing seat according to claim 8, wherein the driving mechanism (7) comprises a supporting frame (701) arranged at the top of the fixing frame (403), a driving motor (702) is arranged at the top of the supporting frame (701), and the output end of the driving motor (702) is connected with a gear III (703); The bottom of the support frame (701) is connected with two limiting plates (704) which are symmetrically arranged, a driving gear (705) is rotatably arranged between the two limiting plates (704), and the third gear (703) is in transmission connection with the driving gear (705) through a fourth gear (706); The driving gear (705) comprises a driving cylinder (7051) which is rotatably arranged in the inner cavity of the limiting plate (704), and a plurality of movable grooves (7052) communicated with the inner cavity of the driving cylinder (7051) are formed in the circumferential side wall of the driving cylinder; The first transmission gear (509) comprises a transmission rod (5091), the transmission rod (5091) is movably arranged in the inner cavity of the driving cylinder (7051), a plurality of transmission plates (5092) are connected to the circumferential outer wall of the transmission rod (5091), and the transmission plates (5092) movably penetrate through the movable grooves (7052); When the driving gear (705) rotates, the transmission plate (5092) can be driven to synchronously move through the movable groove (7052) on the side wall of the driving cylinder (7051), so that the transmission gear I (509) synchronously rotates; the second transmission gear (610) is arranged with the same structural components as the first transmission gear (509).
  10. 10. The double-sided milling device of a machine tool tail end bearing seat according to claim 9, characterized in that the side wall of the limiting plate (704) is connected with a brake disc (7041); The end of the transmission plate (5092) is connected with an annular plate (5093), the annular plate (5093) is movably sleeved on the driving cylinder (7051), an air pressure cavity (5094) is formed in the side wall of the annular plate (5093), a concave groove (5095) is formed in the inner side wall of the air pressure cavity (5094), a sliding plate (5096) is arranged in the concave groove (5095) in a sealing sliding manner, a brake piece (5097) is integrally formed in the side wall of the sliding plate (5096), and the brake piece (5097) is arranged on the side of the annular plate (5093); An exhaust channel (5098) and a piston cavity (5099) which are in a communicating state are arranged in the inner cavity of the transmission rod (5091), an air injection channel (50910) is arranged in the inner cavity of the transmission plate (5092), and the piston cavity (5099) is communicated with the air pressure cavity (5094) through the air injection channel (50910); the side wall of the inner cavity of the driving cylinder (7051) is connected with a guide rod (7053), and the end head of the guide rod (7053) is connected with a piston head (7054); The guide rod (7053) is hermetically and slidably penetrated through the side wall of the annular plate (5093) and extends into the piston cavity (5099), the piston head (7054) is hermetically and slidably matched with the piston cavity (5099), and when the annular plate (5093) moves away from the driving gear (705), the piston head (7054) can compress and convey gas in the piston cavity (5099) into the air pressure cavity (5094).

Description

Double-sided milling device for bearing seat at tail end of machine tool Technical Field The invention relates to the technical field of milling, in particular to a double-sided milling device of a bearing seat at the tail end of a machine tool. Background The bearing seat at the tail end of the machine tool is used as a core component for supporting and positioning a main shaft of the machine tool, and the machining precision directly influences the rotation precision, the running stability and the service life of the machine tool. The bearing seat structure is required to process three types of characteristic surfaces, namely a bilateral plane outer wall, an inner cavity circumferential inner wall and a top omega-shaped special-shaped wall surface, and the rest small surfaces, the number of the processed surfaces is large, the shape and position tolerance requirements are strict, and the position association degree of each processed surface is high. The milling processing of the bearing seat in the current industry generally adopts a traditional distributed processing technology, and the traditional distributed processing needs to clamp the bearing seat for multiple times, namely, the inner cavity circumferential surface, the top special-shaped surface and the outer walls of the two sides need to be processed by separate procedures and by separate fixture clamping, so that each clamping is not only troublesome, but also greatly influences the processing efficiency. In view of this, we propose a double-sided milling device for the bearing block of the tail end of a machine tool. Disclosure of Invention The invention aims to provide a double-sided milling device for a bearing seat at the tail end of a machine tool, which aims to solve the technical problem of low processing efficiency caused by multiple clamping and scattered working procedures in the traditional processing. The double-sided milling device comprises a frame, wherein a lifting mechanism is arranged in an inner cavity of the frame and comprises a lifting table, a reciprocating mechanism is arranged at the top of the lifting table and comprises a moving table, a counter moving mechanism is arranged at the top of the moving table and comprises a fixing frame, a first moving frame and a second moving frame which can move relatively or move oppositely, an inner milling mechanism is arranged at the top of the first moving frame, an outer milling mechanism is arranged at the top of the second moving frame, a driving mechanism is arranged at the top of the fixing frame, a clamping mechanism is arranged at the top of the frame, the driving mechanism can synchronously drive the inner milling mechanism to move in a circular track, the outer milling mechanism is driven to move in an omega-shaped track, the inner milling mechanism comprises a first milling cutter, the outer milling mechanism comprises a second milling cutter, after the first moving frame and the second moving frame move relatively, the first main body and the second main body can move relatively, the first milling frame and the second milling frame can be distributed on the side walls of the main body, the first milling frame and the second milling frame can be used for milling the two side walls of the main body and the second main body can move relatively to the top of the main body and extend into the inner wall of the bearing frame, and the second milling frame can be used for milling the inner wall of the main body and the second main body and the second main body can extend to the opposite to the inner wall of the main body. Preferably, the lifting mechanism is a cylinder-driven lifting structure, the bottom of the lifting table is fixedly connected with the lifting end of the cylinder-driven lifting structure, a plurality of guide posts are mounted on the top of the frame, and the lifting table is movably sleeved on the guide posts. Preferably, the reciprocating mechanism is a motor-driven screw rod linear moving structure, and the bottom of the moving platform is fixedly connected with the moving end of the screw rod linear moving structure. Preferably, the opposite moving mechanism is a motor-driven bidirectional screw rod linear moving structure, two sections of external threads with opposite screwing directions are sequentially arranged on a shaft body of the bidirectional screw rod along an axial direction, the bottom of the first moving frame is connected with one moving end on one external thread, and the bottom of the second moving frame is connected with the other moving end on the external thread, so that the first moving frame and the second moving frame can synchronously move in opposite directions or opposite directions under the driving of the bidirectional screw rod. Preferably, the clamping end of the clamping mechanism is arranged between the inner milling mechanism and the outer milling mechanism, and the clamping mechanism is used for clamping and fixing the bea