CN214134036U

CN214134036U - Hollow chuck for heavy machine tool

Info

Publication number: CN214134036U
Application number: CN202023272535.4U
Authority: CN
Inventors: 牟忠凯; 徐彦东
Original assignee: Heilongjiang Qisi Machine Tool Co ltd
Current assignee: Heilongjiang Qisi Machine Tool Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-07
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a heavy hollow chuck for lathe is connected with the chuck body on the base, and there is slewing bearing through slewing bearing's outer loop on the chuck body, and slewing bearing is connected with eight claw chucks, and eight claw chucks are connected through roller and chuck supporting seat roll connection on two chuck supporting seats, are connected with the oil pump on the base, and oil passes the oilhole connection on base and chuck body and the slewing bearing outer loop through the pipeline. The clamping precision of the workpiece can be finely adjusted by adopting eight chuck jaws. The inner ring and the outer ring are provided with hoisting holes, so that the installation and the disassembly are safe and convenient, and the inner ring sealing ring and the outer ring sealing ring are adopted, and the oil inlet of the outer ring is lubricated to ensure the long-term stable work. Be equipped with two chuck supporting seats auxiliary stay below the eight claw chuck, can guarantee bearing capacity and can guarantee to support the required precision again, make it have equivalent load capacity and long-time accurate stable work, can satisfy all kinds of various large-scale, heavy lathe design demands completely, be a lathe annex that has market development prospect.

Description

Hollow chuck for heavy machine tool

Technical Field

The utility model relates to a chuck especially relates to a hollow chuck for heavy lathe, belongs to lathe equipment technical field.

Background

At present, various large and heavy machine tools are applied more and more widely, machined workpieces are larger and larger, when large shaft parts are machined, in order to avoid the load of a main shaft and a tailstock of the machine tool and improve the machining precision of the workpieces, supports are often added in the middle of the workpieces, and the design and manufacture of the hollow chuck which meets the practical requirements becomes a preoccupation and is one of machine tool accessories of market requirements.

Disclosure of Invention

In order to solve the problem, an object of the utility model is to provide a heavy hollow chuck for lathe, a split type heavy slewing bearing has been designed as required, hoist respectively through outer loop hole for hoist and mount and inner ring hole for hoist, the field assembly, adopt heavy roller, be connected with the sealing washer between outer loop and inner ring, the outer loop is equipped with the oilhole and guarantees fully lubricated, outer loop fixed connection is on the chuck body, eight claw (holding) chucks are fixed on rotatable inner ring, in order to alleviate the load of eight claw (holding) chucks, connect two (holding) chucks supporting seats of taking cylindrical roller below eight claw (holding) chucks, make whole hollow chuck have considerable load capacity, can guarantee long-time accurate stable work again, be the lathe annex that can satisfy market demand.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a heavy hollow chuck for lathe, by the base, the chuck body, slewing bearing, the chuck supporting seat, eight claw chucks, the oil pump is constituteed, be connected with the chuck body on the base, there is slewing bearing through slewing bearing's outer loop connection on the chuck body, slewing bearing passes through slewing bearing's inner ring and is connected with eight claw chucks, roller and chuck supporting seat roll connection on two chuck supporting seats below the eight claw chuck, be connected with the oil pump on the base, oil passes the oilhole connection on base and chuck body and the slewing bearing outer ring through the pipeline. The rotary bearing comprises an outer ring, an inner ring, a cylindrical roller and a sealing ring, wherein the outer ring is connected with the inner ring through the cylindrical roller, the sealing ring is connected between the outer ring and the inner ring, an outer ring hoisting hole is formed in the outer ring, an inner ring hoisting hole is formed in the inner ring, and an oil hole is formed in the outer ring. The chuck supporting seat is connected with a roller. Eight chuck jaws are uniformly distributed and connected on the eight-jaw chuck.

The utility model has the advantages that: adopt eight chuck jaws can the fine adjustment work piece clamping precision, it is interior, all be equipped with the hole for hoist on the outer loop, guarantee the installation, it is safe convenient to dismantle, adopt in, outer loop sealing washer, the lubricated long-term steady operation of guaranteeing of outer loop oil feed, be equipped with two chuck supporting seat auxiliary stay below the eight-jaw chuck, can guarantee bearing capacity and can guarantee to support the required precision again, make whole hollow chuck have equivalent load-carrying capacity, can guarantee long-time accurate steady operation again, can satisfy all kinds of large-scalely completely, heavy lathe design demand, a lathe annex that has fine market development prospect.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic view of a three-dimensional structure of a hollow chuck for a heavy machine tool.

Fig. 2 is a schematic side view of the structure of fig. 1.

Fig. 3 is a schematic view of the structure of the rotary bearing of fig. 1.

Fig. 4 is a partial cross-sectional structural schematic view of the chuck body, slew bearing, eight-jaw chuck of fig. 1.

Reference numerals

1. Base 2, chuck body 3, slewing bearing, 4, chuck supporting seat 5, eight claw chucks

6. Oil pump outer ring 31, inner ring 32, cylindrical rollers 33, 34, sealing ring

35. Oil hole 36, outer ring hoisting hole 37, inner ring hoisting hole 41, roller 51, chuck jaw.

Detailed Description

Referring to fig. 1 to 4, a hollow chuck for a heavy machine tool comprises a base, a chuck body, a rotary bearing, a chuck support seat, an eight-jaw chuck and an oil pump, wherein the chuck body 2 is connected to the base 1, the rotary bearing 3 is connected to the chuck body 2 through an outer ring 31 of the rotary bearing 3, the rotary bearing 3 is connected to the eight-jaw chuck 5 through an inner ring 32 of the rotary bearing 3, the lower surface of the eight-jaw chuck 5 is connected to the chuck support seat 4 through rollers 41 of the two chuck support seats 4 in a rolling manner, the oil pump 6 is connected to the base 1, and the oil pump 6 penetrates through the base 1 and the chuck body 2 through a pipeline and is connected to an oil hole 35 of the outer ring 31 of the rotary bearing 3. The slewing bearing 3 comprises an outer ring 31, an inner ring 32, cylindrical rollers 33 and a sealing ring 34, wherein the outer ring 31 is connected with the inner ring 32 through the cylindrical rollers 33, the sealing ring 34 is connected between the outer ring 31 and the inner ring 32, an outer ring hoisting hole 36 is arranged on the outer ring 31, an inner ring hoisting hole 37 is arranged on the inner ring 32, and an oil hole 35 is also arranged on the outer ring 31. The chuck support seat 4 is connected with a roller 41. Eight chuck claws 51 are uniformly connected to the eight-claw chuck 5.

Claims

1. The utility model provides a heavy hollow chuck for lathe comprises base, chuck body, slewing bearing, chuck supporting seat, eight claw chucks, oil pump, its characterized in that: be connected with chuck body (2) on base (1), outer ring (31) through slewing bearing (3) is connected with slewing bearing (3) on chuck body (2), slewing bearing (3) are connected with eight claw chuck (5) through inner ring (32) of slewing bearing (3), below eight claw chuck (5) through roller (41) and chuck supporting seat (4) roll connection on two chuck supporting seats (4), be connected with oil pump (6) on base (1), oil pump (6) pass base (1) and chuck body (2) through the pipeline and are connected with oilhole (35) on slewing bearing (3) outer ring (31).

2. The heavy duty machine tool hollow chuck according to claim 1, wherein: slewing bearing (3) constitute by outer ring (31), inner ring (32), cylindrical roller (33), sealing washer (34), outer ring (31) are connected with inner ring (32) through cylindrical roller (33), are connected with sealing washer (34) between outer ring (31) and inner ring (32), be equipped with outer ring hole of hoist (36) on outer ring (31), be equipped with inner ring hole of hoist (37) on inner ring (32), still be equipped with oilhole (35) on outer ring (31).

3. The heavy duty machine tool hollow chuck according to claim 1, wherein: the chuck supporting seat (4) is connected with a roller (41).

4. The heavy duty machine tool hollow chuck according to claim 1, wherein: eight chuck claws (51) are uniformly distributed and connected on the eight-claw chuck (5).