CN219035344U

CN219035344U - Main shaft supporting mechanism of high-speed numerical control lathe

Info

Publication number: CN219035344U
Application number: CN202222558180.8U
Authority: CN
Inventors: 孙继仁
Original assignee: Dalian Huisen Precision Machinery Co ltd
Current assignee: Dalian Huisen Precision Machinery Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-16
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a main shaft supporting mechanism of a high-speed numerical control lathe, which comprises a rectangular frame positioned outside a main shaft, wherein supporting seats are arranged on the front side and the rear side of the upper side and the lower side of the interior of the rectangular frame, rotating shafts are rotatably arranged in the four supporting seats, one ends of rotating arms are connected with the four rotating shafts, cam bearing followers are arranged at the other ends of the four rotating arms, two hydraulic cylinders are oppositely arranged in the middle positions of the upper side and the lower side of the interior of the rectangular frame, lifting arms are arranged at the moving ends of the two hydraulic cylinders, one ends of connecting rods are rotatably connected with the left end and the right end of each lifting arm, the other ends of the four connecting rods are rotatably connected with the rotating arms adjacent to the connecting rods respectively, and the two hydraulic cylinders are started to work, so that the four cam bearing followers clamp the main shaft, namely the main shaft can be positioned, the running stability of the main shaft can be increased, the dislocation or the offset of the main shaft is avoided, and the machining precision is improved.

Description

Main shaft supporting mechanism of high-speed numerical control lathe

Technical Field

The utility model relates to the technical field of numerically controlled lathes, in particular to a spindle supporting mechanism of a high-speed numerically controlled lathe.

Background

The lathe is a machine tool for turning a rotating workpiece with a turning tool. The lathe may also be used with drills, reamers, taps, dies, knurling tools, etc. as part of the machining process. The lathe processing mainly uses a turning tool to carry out turning processing on a rotating workpiece. The lathe can also be used for corresponding machining by using a drill bit, a reamer, a tap, a die, a knurling tool and the like. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having surfaces of revolution, and are the most widely used type of machine tool in machinery manufacturing and repair facilities.

After the high-speed numerical control lathe spindle runs for a long time, the spindle is easy to misplace or shift due to abrasion, aging and the like, and the machining precision is affected.

Therefore, the main shaft supporting mechanism of the high-speed numerical control lathe is provided.

Disclosure of Invention

The utility model aims to provide a high-speed numerical control lathe spindle supporting mechanism so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-speed numerical control lathe main shaft supporting mechanism, includes the rectangle frame that is located the main shaft outside, the supporting seat is all installed to both sides around the inside upper and lower both sides of rectangle frame, four the inside of supporting seat is all rotated and is installed the pivot, four the pivot all is connected with the one end of rotor arm, four the cam bearing follower is all installed to the other end of rotor arm, the main shaft centre gripping is between four cam bearing followers, two pneumatic cylinders are installed relatively to the inside upper and lower both sides face intermediate position of rectangle frame, two all install the lifting arm on the mobile terminal of pneumatic cylinder, two the both ends are all rotated and are connected with the one end of connecting rod about the lifting arm, four the other end of connecting rod is connected with the rotor arm rotation that its is adjacent respectively.

Preferably, the bearing seat is installed on the supporting seat, two angular contact ball bearings, a bearing adjusting ring and a deep groove ball bearing are sequentially installed in the bearing seat from left to right, two angular contact ball bearings are installed relatively, and the rotating shaft is installed in the two angular contact ball bearings, the bearing adjusting ring and the deep groove ball bearing.

Preferably, the left end face and the right end face of the bearing seat are both provided with bearing seat sealing covers outside the rotating shaft.

Preferably, a round hole for connecting a rotating shaft is prefabricated on one end of the rotating arm, and a threaded hole for connecting a cam bearing follower is prefabricated on the other end of the rotating arm.

Preferably, the rotating arm is prefabricated with a groove for accommodating the connecting rod, and the lifting arm is prefabricated with a through groove for accommodating the connecting rod.

Preferably, the connecting rod is rotationally connected with the rotating arm and the lifting arm through pin shafts, and through holes for the pin shafts are formed in the connecting rod, the rotating arm and the lifting arm.

Preferably, a plurality of mounting holes are uniformly formed in the rectangular frame, and the rectangular frame is fixed on the numerical control lathe through bolts penetrating through part of the mounting holes.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a high-speed numerical control lathe main shaft supporting mechanism, which starts two hydraulic cylinders to work, so that four cam bearing followers clamp or loosen a main shaft, and when the four cam bearing followers clamp the main shaft, the main shaft can be positioned, the running stability of the main shaft can be improved, the dislocation or the deviation of the main shaft is avoided, and the machining precision is improved; when the four cam bearing followers loosen the main shaft, the main shaft is in a free state, so that the novel gear box is applicable to a rough machining state and is convenient to replace and maintain.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

fig. 3 is a schematic side view of the present utility model.

In the figure: 1. a main shaft; 2. a rectangular frame; 3. a support base; 4. a rotating shaft; 5. a rotating arm; 6. cam bearing follower; 7. a hydraulic cylinder; 8. a lifting arm; 9. a connecting rod; 10. a bearing seat; 11. angular contact ball bearings; 12. an adjusting ring for a bearing; 13. deep groove ball bearings; 14. and a bearing seat sealing cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the main shaft supporting mechanism of the high-speed numerical control lathe comprises a rectangular frame 2 positioned outside a main shaft 1, supporting seats 3 are respectively arranged on the front side and the rear side of the upper side and the lower side of the interior of the rectangular frame 2, rotating shafts 4 are respectively rotatably arranged in the four supporting seats 3, the four rotating shafts 4 can respectively rotate relative to the four supporting seats 3, the four rotating shafts 4 are respectively connected with one ends of rotating arms 5, the other ends of the four rotating arms 5 are respectively provided with cam bearing followers 6, the main shaft 1 is clamped between the four cam bearing followers 6, the four cam bearing followers 6 are used for rolling and supporting the main shaft 1, two hydraulic cylinders 7 are relatively arranged in the middle positions of the upper side and the lower side of the interior of the rectangular frame 2, lifting arms 8 are respectively arranged on the moving ends of the two hydraulic cylinders 7, the two lifting arms 8 are driven by the two hydraulic cylinders 7, the two lifting arms 8 are close to or far away from each other, the left end and the right end of each lifting arm 8 are respectively and rotatably connected with one end of a connecting rod 9, the other ends of the four connecting rods 9 are respectively and rotatably connected with the adjacent rotating arms 5, in the use process, the two hydraulic cylinders 7 are started to work so as to drive the two lifting arms 8 to be close to or far away from each other, the four rotating arms 5 can be driven to rotate around the four supporting seats 3 respectively under the pushing or pulling of the four connecting rods 9, finally, the four cam bearing followers 6 clamp or unclamp the main shaft 1, when the four cam bearing followers 6 clamp the main shaft 1, the main shaft 1 can be positioned, the running stability of the main shaft 1 can be increased, the dislocation or the deviation of the main shaft is avoided, the machining precision is improved, when the four cam bearing followers 6 unclamp the main shaft 1, the main shaft 1 is in a free state, the device is suitable for rough machining states and is convenient to replace and maintain the main shaft.

Specifically, the bearing seat 10 is mounted on the supporting seat 3, two angular contact ball bearings 11, a bearing adjusting ring 12 and a deep groove ball bearing 13 are sequentially mounted in the bearing seat 10 from left to right, two angular contact ball bearings 11 are mounted opposite to each other, the rotating shaft 4 is mounted in the two angular contact ball bearings 11, the bearing adjusting ring 12 and the deep groove ball bearing 13, the two angular contact ball bearings 11 are used for bearing axial force and radial force received by the rotating shaft 4, the deep groove ball bearing 13 is used for bearing radial force received by the rotating shaft 4, and the bearing adjusting ring 12 is used for adjusting distance between the two angular contact ball bearings 11 and the deep groove ball bearing 13.

Specifically, bearing seat sealing covers 14 are mounted on both the left and right end surfaces of the bearing seat 10 and outside the rotating shaft 4.

Specifically, a round hole for connecting the rotating shaft 4 is prefabricated on one end of the rotating arm 5, and a threaded hole for connecting the cam bearing follower 6 is prefabricated on the other end of the rotating arm 5.

Specifically, a groove for accommodating the connecting rod 9 is prefabricated on the rotating arm 5, and a through groove for accommodating the connecting rod 9 is prefabricated on the lifting arm 8.

Specifically, the connecting rod 9 is in rotary connection with the rotating arm 5 and the lifting arm 8 through pin shafts, and through holes for passing through the pin shafts are formed in the connecting rod 9, the rotating arm 5 and the lifting arm 8.

Specifically, a plurality of mounting holes are uniformly formed in the rectangular frame 2, and the rectangular frame 2 is fixed on the numerical control lathe by bolts penetrating through part of the mounting holes.

Working principle: the rectangular frame 2 is arranged on a numerical control lathe, in the use process, two hydraulic cylinders 7 are started to work, two lifting arms 8 can be driven to be close to or far away from each other, under the pushing or pulling of four connecting rods 9, four rotating arms 5 can be driven to rotate around four supporting seats 3 respectively, finally, four cam bearing followers 6 clamp or loosen a main shaft 1, when the four cam bearing followers 6 clamp the main shaft 1, the main shaft 1 can be positioned, the running stability of the main shaft 1 can be increased, the main shaft dislocation or deviation is avoided, and therefore machining precision is improved.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 high-speed numerical control lathe main shaft supporting mechanism, is including being located outside rectangular frame (2) of main shaft (1), its characterized in that: the front and back sides of the upper and lower both sides of the inside of rectangular frame (2) are all installed supporting seat (3), four the inside of supporting seat (3) is all rotated and is installed pivot (4), four pivot (4) all are connected with the one end of rotor arm (5), four cam bearing follower (6) are all installed to the other end of rotor arm (5), main shaft (1) centre gripping is between four cam bearing follower (6), two pneumatic cylinders (7) are installed relatively to the inside upper and lower both sides face intermediate position of rectangular frame (2), two all install lift arm (8) on the mobile terminal of pneumatic cylinder (7), two the both ends are all rotated and are connected with the one end of connecting rod (9) about lift arm (8), four the other end of connecting rod (9) rotates with its adjacent rotor arm (5) respectively.

2. The high-speed numerically controlled lathe spindle support mechanism according to claim 1, wherein: the bearing support is characterized in that a bearing seat (10) is arranged on the supporting seat (3), two angular contact ball bearings (11), a bearing adjusting ring (12) and a deep groove ball bearing (13) are sequentially arranged in the bearing seat (10) from left to right, the two angular contact ball bearings (11) are oppositely arranged, and the rotating shaft (4) is arranged in the two angular contact ball bearings (11), the bearing adjusting ring (12) and the deep groove ball bearing (13).

3. The high-speed numerically controlled lathe spindle support mechanism according to claim 2, wherein: bearing seat sealing covers (14) are arranged on the left end face and the right end face of the bearing seat (10) and are positioned outside the rotating shaft (4).

4. The high-speed numerically controlled lathe spindle support mechanism according to claim 1, wherein: a round hole for connecting the rotating shaft (4) is prefabricated on one end of the rotating arm (5), and a threaded hole for connecting the cam bearing follower (6) is prefabricated on the other end of the rotating arm (5).

5. The high-speed numerically controlled lathe spindle support mechanism according to claim 1, wherein: the rotating arm (5) is prefabricated with a groove for accommodating the connecting rod (9), and the lifting arm (8) is prefabricated with a through groove for accommodating the connecting rod (9).

6. The high-speed numerically controlled lathe spindle support mechanism according to claim 1, wherein: the connecting rod (9) is rotationally connected with the rotating arm (5) and the lifting arm (8) through pin shafts, and through holes for the pin shafts are formed in the connecting rod (9), the rotating arm (5) and the lifting arm (8).

7. The high-speed numerically controlled lathe spindle support mechanism according to claim 1, wherein: a plurality of mounting holes are uniformly formed in the rectangular frame (2), and the rectangular frame (2) is fixed on the numerical control lathe through bolts penetrating through part of the mounting holes.