CN218612958U

CN218612958U - Workpiece clamping mechanism of lathe

Info

Publication number: CN218612958U
Application number: CN202223160289.2U
Authority: CN
Inventors: 刘晓婷; 纪森
Original assignee: Qingdao Shengxin Heavy Duty Machine Tool Co ltd
Current assignee: Qingdao Shengxin Heavy Duty Machine Tool Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-14
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a work piece fixture of lathe relates to work piece centre gripping technical field, including the lathe work seat, the outside of lathe work seat sets up positioner, lathe work seat upper end sets up torus closing device and extension body closing device, torus closing device is located extension body closing device's upside. The utility model discloses a place the U-shaped work piece on lathe processing seat, later remove towards U-shaped work piece department through three first telescoping device drive locating plates of group, until the contact, utilize three point location's method to make the locating plate fix a position the U-shaped work piece, later withdraw the locating plate, through the lower extreme ring surface that two sets of second telescoping device drive briquetting downstream compressed tightly the U-shaped work piece, drive the clamp plate through third telescoping device and fourth telescoping device and compress tightly the work piece front end extension body, realize the location centre gripping to the U-shaped work piece.

Description

Workpiece clamping mechanism of lathe

Technical Field

The utility model belongs to the technical field of the work piece centre gripping technique and specifically relates to a work piece fixture of lathe.

Background

A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool, and a workpiece holding device is a device for holding a workpiece on the lathe.

When a vertical lathe is used for processing a horseshoe-shaped workpiece, the inner wall of a circular component at the lower end of the horseshoe-shaped workpiece needs to be processed for turning, and the horseshoe-shaped workpiece cannot be clamped by a clamping device in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a workpiece clamping mechanism of a lathe.

The utility model provides a technical scheme that its technical problem adopted is: the workpiece clamping mechanism of the lathe comprises a lathe machining seat, a positioning device is arranged on the outer side of the lathe machining seat, a circular ring pressing device and an extension body pressing device are arranged at the upper end of the lathe machining seat, and the circular ring pressing device is located on the upper side of the extension body pressing device.

Furthermore, the positioning device comprises a first telescopic device, and a positioning plate is fixedly installed at the telescopic end of the first telescopic device.

Furthermore, the positioning device is provided with three groups on the outer side of the lathe machining seat, and the stroke running distances of the three groups of first telescopic devices are synchronous.

Further, the torus pressing device comprises a second expansion device fixedly installed inside the lathe machining seat, and a pressing block is fixedly installed at the expansion end of the second expansion device.

Furthermore, the length of a pressing surface at the right end of the pressing block is smaller than the width of a circular ring surface of the horseshoe-shaped workpiece, and two groups of circular ring surface pressing devices are symmetrically arranged on the lathe machining seat.

Furthermore, the extension body pressing device comprises a telescopic device fixedly installed inside the lathe machining seat, and a pressing plate is fixedly installed at the telescopic end of the telescopic device.

The beneficial effects of the utility model are that: the U-shaped workpiece is placed on the lathe machining seat, then the positioning plate is driven to move towards the U-shaped workpiece through the three groups of first expansion devices until the U-shaped workpiece is contacted, the positioning plate is positioned on the U-shaped workpiece by a three-point positioning method, then the positioning plate is withdrawn, the pressing block is driven to move downwards through the two groups of second expansion devices to press the lower end circular ring surface of the U-shaped workpiece, the pressing plate is driven to press the front end extension body of the workpiece through the third expansion device and the fourth expansion device, and positioning and clamping on the U-shaped workpiece are achieved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a plan view of the present invention in the overall positioning;

FIG. 2 is a top view of the present invention in its entirety;

fig. 3 is a cross-sectional view of the torus compressing apparatus of the present invention;

fig. 4 is a cross-sectional view of the extension body pressing device of the present invention;

fig. 5 is a plan view of the horseshoe-shaped workpiece of the present invention.

In the figure, 1, a lathe machining seat, 2, a first telescopic device, 3, a positioning plate, 4, a horseshoe-shaped workpiece, 5, a second telescopic device, 6, a pressure block, 7, a third telescopic device, 8, a fourth telescopic device, 9, a pressure plate and 10, a workpiece front end extending body are arranged.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the following provides a further description of the present invention with reference to the accompanying drawings, and obviously, the following described drawings are only one embodiment of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings and the embodiment without any creative work, and all belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the utility model discloses a lathe work seat 1, be used for placing U-shaped work piece 4 on the lathe work seat 1, the outside of lathe work seat 1 is provided with three positioner of group, positioner includes first telescoping device 2, the flexible end mounting locating plate 3 of first telescoping device 2, three group the flexible stroke of first telescoping device 2 keep unanimous, through three group the locating plate 3 is pushed to U-shaped work piece 4, and is right through three point location's method U-shaped work piece 4 fixes a position, fixes a position the back, through first telescoping device 2 drive locating plate 3 withdraws.

As shown in fig. 1 and fig. 3, two sets of circular ring surface pressing devices are symmetrically arranged in the lathe machining seat 1 corresponding to the position of the circular ring surface at the lower end of the horseshoe-shaped workpiece 4, each circular ring surface pressing device comprises a second expansion device 5 fixedly installed in the lathe machining seat 1, a pressing block 6 is fixedly installed at the expansion end of the second expansion device 5, the circular ring surface at the lower end of the horseshoe-shaped workpiece 4 is pressed and clamped through the pressing block 6, and the length of the pressing surface at the right end of the pressing block 6 is smaller than the width of the circular ring surface of the horseshoe-shaped workpiece 4, so that interference in turning of a vertical lathe is prevented.

As shown in fig. 1 and 4, extension body pressing devices are arranged in the lathe machining seat 1 corresponding to the position of the workpiece front end extension body 10 on the horseshoe-shaped workpiece 4, the extension body pressing devices comprise third expansion devices 7 and fourth expansion devices 8 fixedly installed in the lathe machining seat 1, two sets of the fourth expansion devices 7 are arranged at the symmetrical positions of the fourth expansion devices 8, the fourth expansion devices 7 are located at the expansion ends of the fourth expansion devices 8 and fixedly installed with pressing plates 9, and the workpiece front end extension body 10 on the horseshoe-shaped workpiece 4 is pressed and clamped through the pressing plates 9, so that the horseshoe-shaped workpiece 4 is clamped and fixed.

The utility model discloses when using, place on lathe processing seat 1 through with shape of a hoof work piece 4, later remove the contact through 3 orientation 4 toroidal of shape of a hoof work piece departments of locating plate among three positioner, the method that utilizes three point location makes locating plate 3 fix a position shape of a hoof work piece 4, later make locating plate 3 withdraw under first telescoping device 2's effect, lower extreme torus that compresses tightly shape of a hoof work piece 4 through the downward removal of two sets of second telescoping device 5 drive briquettings 6, compress tightly work piece front end extension body 10 through third telescoping device 7 and the 8 drive briquettings 9 boards of fourth telescoping device, whole realization is to the location centre gripping of shape of a hoof work piece.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and the protection scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the protection scope of the present invention.

Claims

1. The utility model provides a work piece fixture of lathe, includes lathe processing seat (1), its characterized in that: the outer side of the lathe machining seat (1) is provided with a positioning device, the upper end of the lathe machining seat (1) is provided with a circular ring surface pressing device and an extension body pressing device, and the circular ring surface pressing device is located on the upper side of the extension body pressing device.

2. A workpiece clamping mechanism for a lathe as claimed in claim 1, characterised in that the positioning means comprises a first telescopic device (2), the first telescopic device (2) having a positioning plate (3) mounted at its telescopic end.

3. The workpiece clamping mechanism of a lathe as set forth in claim 2, wherein the positioning device is provided with three sets on the outer side of the lathe machining seat (1), and the travel distances of the three sets of the first telescopic devices (2) are synchronous.

4. The workpiece clamping mechanism of the lathe is characterized in that the circular ring surface pressing device comprises a second telescopic device (5) fixedly installed inside the lathe machining seat (1), and a pressing block (6) is fixedly installed at the telescopic end of the second telescopic device (5).

5. The workpiece clamping mechanism of the lathe is characterized in that the length of a pressing surface at the right end of the pressing block (6) is smaller than the width of a circular ring surface of the horseshoe-shaped workpiece (4), and two groups of circular ring surface pressing devices are symmetrically arranged on the lathe machining seat (1).

6. The workpiece clamping mechanism of the lathe is characterized in that the extending body pressing device comprises a telescopic device (7, 8) fixedly installed inside the lathe machining seat (1), and a pressure plate (9) is fixedly installed at the telescopic end of the telescopic device (7, 8).