CN213916179U

CN213916179U - Multi-end synchronous clamping workpiece clamping disc for machining

Info

Publication number: CN213916179U
Application number: CN202023021956.XU
Authority: CN
Inventors: 吴伟国; 左俊; 汤俊杰
Original assignee: Wuxi Wierxun Fluid Control Technology Co ltd
Current assignee: Wuxi Wierxun Fluid Control Technology Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-08-10
Anticipated expiration: 2030-12-15

Abstract

The utility model relates to the technical field of machine tool machining, in particular to a multi-end synchronous tightening workpiece tightening disc for machine tool machining, which comprises six clamping claws, a sliding column, a synchronous rotating ring, a limiting block, a lead screw mechanism, a chute mechanism and a thrust bearing, wherein the rear ends of the six clamping claws are hinged on the outer side of the front end of the sliding column, the front end surface of the sliding column is fixed with a front end column, the side surface of the front end column is provided with an elastic spring for opening the clamping claws, the synchronous rotating ring is fixed on the outer side of the sliding column, the limiting ring is arranged on the outer side of the clamping claws, the rear ends of the limiting ring are fixedly connected with the synchronous rotating ring, the limiting block is provided with six limiting blocks which are movably connected on the inner side of the limiting ring through the chute mechanism, and the positions of the limiting blocks correspond to the positions of the clamping claws, compared with the traditional lathe clamping disc, this device adopts six claws to press from both sides tightly, compares and more laminates the work piece side when pressing from both sides tightly with three claws, presss from both sides tightly more reliably.

Description

Multi-end synchronous clamping workpiece clamping disc for machining

Technical Field

The utility model relates to a machine tool machining technical field specifically relates to a machine tooling is with synchronous work piece that steps up of multi-end steps up dish.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, and are conventionally called machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants.

The three-jaw chuck is mainly adopted for a clamping disc of a lathe and is mainly used for processing round bars, and along with the development of the society, the shapes of a plurality of workpieces are not cylindrical bars, so that the three-jaw chuck cannot be better attached to the side surface when being clamped, and the workpieces are easy to fall off when rotating at high speed, so that unsafe accidents are caused.

SUMMERY OF THE UTILITY MODEL

For the purpose of the realization, the utility model provides a machine tooling is with synchronous work piece that steps up of multiterminal steps up and is step up dish, specific technical scheme as follows:

a multi-end synchronous tightening workpiece tightening disc for machining comprises clamping claws, sliding columns, synchronous rotating rings, limiting blocks, a lead screw mechanism, a sliding groove mechanism and a thrust bearing, wherein the clamping claws comprise six clamping claws, the rear ends of the six clamping claws are hinged to the outer sides of the front ends of the sliding columns, the front end faces of the sliding columns are fixed with front end columns, the side faces of the front end columns are provided with elastic springs for opening the clamping claws, the synchronous rotating rings are fixed to the outer sides of the sliding columns, the limiting rings are installed on the outer sides of the clamping claws, the rear ends of the limiting blocks are fixedly connected with the synchronous rotating rings, the six limiting blocks are movably connected to the inner sides of the limiting rings through the sliding groove mechanism, the positions of the limiting blocks correspond to the positions of the clamping claws, adjusting nuts are installed on the outer sides of each limiting block, and the lead screw mechanism is connected to the rear ends of the sliding columns through the thrust bearing, for horizontal displacement of the sliding column.

Further, the screw rod mechanism comprises a screw rod, a screw rod ring, a pre-tightening motor, a first gear and a fixed block, the front end of the screw rod is connected with the sliding column in a rotating mode, the screw rod ring is sleeved on the rear side of the screw rod, the outer side of the screw rod ring is connected with the fixed block to limit horizontal displacement, the fixed block is fixedly connected with the machine tool base, the first gear is connected below the screw rod ring in a rotating mode and is in gear transmission with the outer side of the screw rod ring, and the pre-tightening motor is installed at the rear shaft end of the first gear and is used for driving the first gear to rotate.

Furthermore, the outer side of the limiting ring is provided with a protective shell for preventing the exposed part of the clamping claw from being involved in foreign matters.

Further, spout mechanism includes side spout, terminal surface spout, spout stopper, the spout stopper is fixed at the spacing ring terminal surface inboard, side spout, terminal surface spout are located the side and the preceding terminal surface of stopper respectively, and the spacing side of stopper and side spout sliding connection, spout stopper and terminal surface spout sliding connection, the spout stopper is used for preventing that the stopper from dropping.

Furthermore, the outer side of the synchronous rotating ring is rotatably connected with a rotating bearing, a second gear is arranged on the outer side of the rear end of the synchronous rotating ring, and the second gear is in transmission with a machine tool power system to ensure synchronous rotation during rotation.

The utility model has the advantages that:

(1) this device is compared and is compared with traditional lathe clamping disk, and this device adopts six claws to press from both sides tightly, compares and more laminates the work piece side when pressing from both sides tightly with three claws, presss from both sides tightly more reliably.

(2) This device can adjust the distance of stopper through adjusting nut, and then adjusts the position of clamping jaw, also can accomplish to laminate completely to the side of complicated work piece, and this device makes clamping jaw press from both sides tightly in step through contracting behind the post that will slide, and clamping speed is fast.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the clamping jaw and the limiting ring;

fig. 3 is an enlarged view at a in fig. 1.

In the figure: 1-clamping jaw, 2-sliding column, 3-synchronous rotating ring, 4-limiting ring, 5-limiting block, 6-screw rod mechanism, 7-chute mechanism, 8-thrust bearing, 21-front end column, 22-elastic spring, 51-adjusting nut, 61-screw rod, 62-screw rod ring, 63-pre-tightening motor, 64-gear I, 65-fixing block, 41-protective shell, 71-side chute, 72-end chute, 73-chute limiting block, 31-rotating bearing and 32-gear II.

Detailed Description

To further illustrate the manner in which the present invention is made and the effects obtained, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Examples

As shown in figures 1-3, a multi-end synchronous clamping workpiece clamping disk for machining comprises six clamping claws 1, a sliding column 2, a synchronous rotating ring 3, a limiting ring 4, limiting blocks 5, a screw rod mechanism 6, a chute mechanism 7 and a thrust bearing 8, wherein the rear ends of the six clamping claws 1 are hinged on the outer side of the front end of the sliding column 2, the front end surface of the sliding column 2 is fixedly provided with a front end column 21, the side surface of the front end column 21 is provided with an elastic spring 22 for opening the clamping claws 1, the synchronous rotating ring 3 is fixed on the outer side of the sliding column 2, the limiting ring 4 is arranged on the outer side of the clamping claws 1, the rear end of the limiting ring is fixedly connected with the synchronous rotating ring 3, the limiting blocks 5 are six, the six limiting blocks 5 are movably connected on the inner side of the limiting ring 4 through the chute mechanism 7, the positions of the limiting blocks 5 correspond to the positions of the clamping claws 1, the outer side of each limiting block 5 is provided with an adjusting nut 51, the screw rod mechanism 6 is connected to the rear end of the sliding column 2 through a thrust bearing 8 and used for horizontal displacement of the sliding column 2, and a protective shell 41 is arranged on the outer side of the limiting ring 4 and used for preventing the exposed part of the clamping claw 1 from being involved in foreign matters.

The screw rod mechanism 6 comprises a screw rod 61, a screw rod ring 62, a pre-tightening motor 63, a first gear 64 and a fixed block 65, the front end of the screw rod 61 is rotatably connected with the sliding column 2, the screw rod ring 62 is sleeved on the rear side of the screw rod 61, the outer side of the screw rod ring 62 limits horizontal displacement through the fixed block 65, the fixed block 65 is fixedly connected with the machine tool base, the first gear 64 is rotatably connected below the screw rod ring 62 and is in gear transmission with the outer side of the screw rod ring 62, and the pre-tightening motor 63 is installed at the rear-side shaft end of the first gear 64 and is used for driving the first gear 64 to rotate.

Chute mechanism 7 includes side spout 71, terminal surface spout 72, spout stopper 73, and spout stopper 73 is fixed at the spacing 4 terminal surfaces of spacing ring inboard, and side spout 71, terminal surface spout 72 are located the side and the preceding terminal surface of stopper 5 respectively, and 5 spacing sides of stopper and side spout 71 sliding connection, spout stopper 73 and terminal surface spout 72 sliding connection, and spout stopper 73 is used for preventing that stopper 5 from dropping.

The outer side of the synchronous rotating ring 3 is rotatably connected with a rotating bearing 31, the outer side of the rear end of the synchronous rotating ring 3 is provided with a second gear 32, and the second gear 32 is in transmission with a machine tool power system to ensure synchronous rotation during rotation.

The working method of the embodiment comprises the following steps:

s1: the position of the limiting block is adjusted through the adjusting nut 51, and the tail end of the workpiece is placed at the horizontal position with the front end column 21;

s2: and starting the pre-tightening motor 63, driving the first gear 64 to rotate, driving the inner side of the first gear 64 to be in transmission with the screw 61 through threads, enabling the screw 61 to move backwards, further driving the sliding column 2 to move backwards, and extruding the clamping claw 1 by the limiting block 5 to enable the clamping claw 1 to clamp the workpiece.

Claims

1. The multi-end synchronous tightening workpiece tightening disc for machining is characterized by comprising six clamping claws (1), sliding columns (2), synchronous rotating rings (3), limiting rings (4), limiting blocks (5), a lead screw mechanism (6), a sliding groove mechanism (7) and a thrust bearing (8), wherein the rear ends of the six clamping claws (1) are hinged to the outer sides of the front ends of the sliding columns (2), the front end faces of the sliding columns (2) are fixed with front end columns (21), the side faces of the front end columns (21) are provided with elastic springs (22) for propping open the clamping claws (1), the synchronous rotating rings (3) are fixed to the outer sides of the sliding columns (2), the limiting rings (4) are installed on the outer sides of the clamping claws (1), the rear ends of the limiting blocks (5) are fixedly connected with the synchronous rotating rings (3), the six limiting blocks (5) are movably connected to the inner sides of the limiting rings (4) through the sliding groove mechanism (7), and the position of the limiting block (5) corresponds to the position of the clamping claw (1), the outer side of each limiting block (5) is provided with an adjusting nut (51), and the screw rod mechanism (6) is connected to the rear end of the sliding column (2) through the thrust bearing (8) and is used for horizontal displacement of the sliding column (2).

2. The multi-end synchronous tightening workpiece tightening disc for machining according to claim 1, wherein the screw rod mechanism (6) comprises a screw rod (61), a screw rod ring (62), a pre-tightening motor (63), a first gear (64) and a fixing block (65), the front end of the screw rod (61) is rotatably connected with the sliding column (2), the screw rod ring (62) is sleeved on the rear side of the screw rod (61), the outer side of the screw rod ring (62) limits horizontal displacement through the fixing block (65), the fixing block (65) is fixedly connected with a machine tool base, the first gear (64) is rotatably connected below the screw rod ring (62) and is in gear transmission with the outer side of the screw rod ring (62), and the pre-tightening motor (63) is installed at the rear side shaft end of the first gear (64) and used for driving the first gear (64) to rotate.

3. The multi-end synchronous clamping workpiece clamping disk for machining according to claim 1, characterized in that a protective shell (41) is arranged on the outer side of the limiting ring (4).

4. The multi-end synchronous workpiece clamping disc for machining according to claim 1, wherein the chute mechanism (7) comprises a side chute (71), an end surface chute (72) and a chute limiting block (73), the chute limiting block (73) is fixed on the inner side of the end surface of the limiting ring (4), the side chute (71) and the end surface chute (72) are respectively located on the side surface and the front end surface of the limiting block (5), the side surface limited by the limiting block (5) is connected with the side chute (71) in a sliding manner, and the chute limiting block (73) is connected with the end surface chute (72) in a sliding manner.

5. The multi-end synchronous clamping workpiece clamping disk for machining according to claim 1, characterized in that a rotating bearing (31) is rotatably connected to the outer side of the synchronous rotating ring (3), a second gear (32) is arranged on the outer side of the rear end of the synchronous rotating ring (3), and the second gear (32) is in transmission with a machine tool power system.