CN212665439U

CN212665439U - Position adjusting device of center frame of machine tool

Info

Publication number: CN212665439U
Application number: CN202020962248.7U
Authority: CN
Inventors: 曹宏波; 王凯
Original assignee: Hardinge Precision Machinery Jiaxing Co Ltd
Current assignee: Hardinge Precision Machinery Jiaxing Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-09
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a position adjustment device of lathe centre frame, including centre frame, tailstock, a first stroke section of thick bamboo, a second stroke section of thick bamboo and stroke pole, a first stroke section of thick bamboo has the first cavity that link up along the axial, the left end has the first bulge loop that advances in to first cavity, the tailstock is connected to the right-hand member, a second stroke section of thick bamboo has the second cavity that link up along the axial, the left end has the second inner bulge loop that advances in to the second cavity, the right-hand member has outside convex second outer bulge loop, second outer bulge loop is in the first cavity of a first stroke section of thick bamboo, and the external diameter is greater than the internal diameter of first bulge loop, a second stroke section of thick bamboo can be along the relative first stroke section of thick bamboo round trip movement of axial, the stroke pole has outside convex pole bulge loop, the pole bulge loop is in the second cavity of a second stroke section of thick bamboo, and the external diameter is greater than the internal diameter of second inner bulge loop, the left end connection centre frame of stroke pole. The utility model discloses the centre frame does not need independent drive, and centre frame position adjustment is accurate, and convenient operation is simple.

Description

Position adjusting device of center frame of machine tool

Technical Field

The utility model relates to a lathe technical field, especially a position adjustment device of lathe centre frame.

Background

Machine tools often use a steady rest and a tailstock to hold and position the workpiece, both of which are typically movable. In the existing machine tool, a center frame and a tailstock usually run and are controlled independently, so that the structure and the control system of the machine tool are complex, and the cost of the machine tool is high. There is also the tailstock to drive the structure that the centre frame removed, but this type of structure tailstock and centre frame's distance is fixed unchangeable, when centre gripping and location work piece, inconvenient operation, lack the flexibility, centre gripping is not firm and the location is inaccurate.

Disclosure of Invention

In order to solve the problem, the utility model provides a position adjustment device of lathe centre frame to the accurate regulation to the centre frame position is realized to simple structure.

In order to achieve the above object, the present invention provides a position adjusting device for a machine tool center frame, which comprises a center frame and a tailstock, and further comprises a first stroke cylinder, a second stroke cylinder and a stroke rod, wherein the first stroke cylinder has a first cavity penetrating along an axial direction, a first convex ring protruding into the first cavity is arranged at a left end, the right end is connected with the tailstock, the second stroke cylinder has a second cavity penetrating along the axial direction, a second inner convex ring protruding into the second cavity is arranged at a left end, a second outer convex ring protruding outwards is arranged at a right end, the second outer convex ring is arranged in the first cavity of the first stroke cylinder, and has an outer diameter larger than an inner diameter of the first convex ring, the second stroke cylinder can move back and forth relative to the first stroke cylinder along the axial direction, the stroke rod has a rod convex ring protruding outwards, the rod convex ring is arranged in the second cavity of the second stroke cylinder, and has an outer diameter larger than an inner diameter of the second inner convex ring, the left end of the stroke rod is connected with the center frame, and the stroke rod can move back and forth relative to the second stroke cylinder along the axial direction.

The utility model provides a position adjustment device of lathe centre frame can drive the centre frame through the tailstock and remove the position that the centre frame adjusted the centre frame left or right, and the centre frame does not need independent drive, and centre frame position adjustment is accurate, and convenient operation is simple to simplified structure and control system, practiced thrift the cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1, the position adjusting device of the center frame of the machine tool comprises a center frame 1, a tailstock 2, a first stroke cylinder 3, a second stroke cylinder 4 and a stroke rod 5, wherein the first stroke cylinder 3, the second stroke cylinder 4 and the stroke rod 5 are sequentially arranged between the tailstock 2 and the center frame 1. The first stroke cylinder 3 has a cylindrical shape, and has a first hollow chamber 31 formed therein and extending therethrough in the axial direction, and a first collar 32 formed at the left end thereof and projecting into the first hollow chamber 31. The right connecting plate 7 is fixed on the tailstock 2 through screws, the right end of the first stroke cylinder 3 is fixed on the right connecting plate 7 through screws, and the right end of the first stroke cylinder 3 is connected with the tailstock 2 through the right connecting plate 7.

The second stroke cylinder 4 is cylindrical, and has a second hollow space 41 formed therein and extending through in the axial direction, a second inner collar 42 protruding into the second hollow space 41 at the left end, and a second outer collar 43 protruding outward at the right end. The right end of the second stroke cylinder 4 is in the first cavity 31 of the first stroke cylinder 3, and the second outward protruding ring 43 of the second stroke cylinder 4 is also in the first cavity 31. The outer diameter of the second outward protruding ring 43 is larger than the inner diameter of the first protruding ring 32 and slightly smaller than the inner diameter of the first cavity 31, so that the second stroke cylinder 4 can move back and forth relative to the first stroke cylinder 3 along the axial direction, and when the second outward protruding ring 43 moves to the left end of the first stroke cylinder 3, the second outward protruding ring 43 is blocked by the first protruding ring 32, and the second stroke cylinder 4 is prevented from being separated from the first stroke cylinder 3.

The stroke rod 5 is a solid rod shape, and has a rod protruding ring 51 protruding outward near the right end, the right end of the stroke rod 5 is in the second cavity 41 of the second stroke cylinder 4, and the rod protruding ring 51 is also in the second cavity 41. The outer diameter of the rod protruding ring 51 is larger than the inner diameter of the second inner cam 42 and slightly smaller than the inner diameter of the second cavity 41, so that the stroke rod 5 can move back and forth relative to the second stroke cylinder 4 along the axial direction, and when the rod protruding ring 51 moves to the left end of the second stroke cylinder 4, the rod protruding ring 51 is blocked by the second inner cam 42, and the stroke rod 5 is prevented from separating from the second stroke cylinder 4. The left end of the stroke rod 5 is connected with a left connecting plate 8, and the left connecting plate 8 is fixed on the center frame 1 through a screw.

When the tailstock 2 moves rightwards, the first stroke cylinder 3 moves together with the tailstock 2, when the left end of the first stroke cylinder 3 moves to the right end of the second stroke cylinder 4, the second outer convex ring 43 and the first convex ring 32 block each other, the second stroke cylinder 4 moves rightwards together with the first stroke cylinder 3, when the second inner convex ring 42 is blocked by the rod convex ring 51, the stroke rod 5 moves rightwards together with the second stroke cylinder 4, and the stroke rod 5 drives the center frame 1 to move rightwards together. When the tailstock 2 moves leftwards, the first stroke cylinder 3 can move together with the tailstock 2, the second stroke cylinder 4 retracts towards the inside of the first stroke cylinder 3, when the tailstock retracts to the limit position, the second stroke cylinder 4 moves leftwards along with the first stroke cylinder 3, the stroke rod 5 retracts towards the inside of the second stroke cylinder 4, and when the tailstock retracts to the limit position, the stroke rod 5 pushes the center frame 1 to move leftwards together. Through the first stroke cylinder 3, the second stroke cylinder 4 and the stroke rod 5, the tailstock 2 can drive the center frame 1 to move leftwards or rightwards, so as to adjust the position of the center frame and the distance between the center frame and the tailstock. The center frame does not need independent driving, the position adjustment is accurate, the operation is convenient and simple, the structure and the control system are simplified, and the cost is saved.

An anti-collision block 6 is arranged on the right connecting plate 7, and the anti-collision block 6 extends into the first cavity 31 from the right end of the first stroke cylinder 3. When the tailstock 2 drives the first stroke cylinder 3 to move leftwards together, the second stroke cylinder 4 retracts towards the inside of the first stroke cylinder 3, when the second stroke cylinder 4 retracts to the limit position, the right end of the second stroke cylinder 4 is directly pressed on the anti-collision block 6, and the anti-collision block 6 prevents the second stroke cylinder 4 from impacting the tailstock 2, so that the tailstock 2 is protected.

Claims

1. A position adjusting device of a machine tool center frame comprises a center frame (1) and a tailstock (2), and is characterized by further comprising a first stroke cylinder (3), a second stroke cylinder (4) and a stroke rod (5), wherein the first stroke cylinder (3) is provided with a first cavity (31) which penetrates through along the axial direction, the left end of the first stroke cylinder is provided with a first convex ring (32) which protrudes into the first cavity (31), the right end of the first stroke cylinder is connected with the tailstock (2), the second stroke cylinder (4) is provided with a second cavity (41) which penetrates through along the axial direction, the left end of the second stroke cylinder is provided with a second inner convex ring (42) which protrudes into the second cavity (41), the right end of the second stroke cylinder is provided with a second outer convex ring (43) which protrudes outwards, the second outer convex ring (43) is arranged in the first cavity (31) of the first stroke cylinder (3), the outer diameter of the second stroke cylinder (4) is larger than the inner diameter of the first convex ring (32), and the second stroke cylinder (4) can move back and forth relative to, the stroke rod (5) is provided with a rod convex ring (51) protruding outwards, the rod convex ring (51) is arranged in the second cavity (41) of the second stroke cylinder (4) and has an outer diameter larger than the inner diameter of the second inner convex ring (42), the left end of the stroke rod (5) is connected with the central frame (1), and the stroke rod (5) can move back and forth relative to the second stroke cylinder (4) along the axial direction.

2. The device for adjusting the position of a center frame of a machine tool according to claim 1, wherein an anti-collision block (6) is mounted on the tailstock, and the anti-collision block (6) protrudes from the right end of the first stroke cylinder (3) into the first cavity (31).