CN219005366U

CN219005366U - Six-point floating centering tool

Info

Publication number: CN219005366U
Application number: CN202320081542.0U
Authority: CN
Inventors: 刘卫星; 肖鹏; 李金伟
Original assignee: Hunan Shixin New Materials Co Ltd
Current assignee: Hunan Shixin New Materials Co Ltd
Priority date: 2023-01-11
Filing date: 2023-01-11
Publication date: 2023-05-12
Anticipated expiration: 2033-01-11

Abstract

The utility model relates to a six-point floating centering tool which comprises a die carrier, a driving shaft penetrating through the die carrier along the center of the die carrier and rotationally assembled with the die carrier, a driving disc arranged on the driving shaft and six connecting arms circumferentially and uniformly arranged on the driving disc, wherein one end of each connecting arm far away from the driving disc is connected with an executing arm, a crank sliding block mechanism is formed among the driving disc, the connecting arms and the executing arms, one end of each executing arm far away from each connecting arm is provided with a floating leaning die set, and sliding guide is realized between each executing arm and the die carrier through a guide rail sliding block set. By adopting the six-point floating centering tool, quick centering and fixing of the workpiece are realized, centering accuracy is improved, and processing quality of products is ensured.

Description

Six-point floating centering tool

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a six-point floating centering tool.

Background

When processing ring, ring class work piece, need carry out centering clamping to the work piece, adopt three-jaw or four-jaw centering chuck to carry out the clamping at present often, exist the drawback: because the ring and ring workpieces have the characteristics of large diameter, thin wall, low strength, weak rigidity and the like, the centering chuck is adopted for clamping, self-adaptive adjustment cannot be realized, and quick, accurate and stable clamping and positioning cannot be realized easily.

Disclosure of Invention

Therefore, the utility model aims to provide a six-point floating centering tool so as to realize quick centering and fixing of a workpiece, improve centering accuracy and ensure processing quality of products.

The utility model solves the problems by the following technical means:

the utility model provides a six-point floating centering tool, includes the die carrier, passes the die carrier and with the die carrier pivoted drive shaft of assembly, installs at drive epaxial driving disk and circumference six linking arms of evenly arranging on the driving disk along the die carrier center, the one end that the driving disk was kept away from to the linking arm is connected with the actuating arm, constitutes slider-crank mechanism between driving disk, linking arm and the actuating arm, the one end that the linking arm was kept away from to the actuating arm is provided with and floats by the module, realize sliding guide through guide rail slider group between actuating arm and the die carrier.

Further, the upper side and the lower side of the assembly position of the driving shaft and the die carrier are respectively provided with a first plane bearing and a first conical bearing, the lower side of the driving disc is provided with a second conical bearing, and the outer side end of the first conical bearing is provided with a locking nut.

Further, circumferential positioning is achieved between the drive disc and the drive shaft by means of keys.

Further, the guide rail and sliding block set comprises a guide rail and a sliding block which are in sliding fit, the guide rail is fixedly assembled with the die carrier through guide rail fixing screws, and the sliding block is fixedly assembled with the execution arm through sliding block fixing screws.

Further, a handle is connected to the drive shaft.

Further, the top of drive shaft is connected with eye screw.

Further, one end of the connecting arm is connected with the driving disc through a connecting screw, and the other end of the connecting arm is connected with the actuating arm through the connecting screw.

Further, the portion of the driving shaft located between the die carrier and the driving plate is provided with an adjusting sleeve.

Further, a second plane bearing is arranged at the joint of the floating leaning module and the actuating arm.

Further, the die carrier is fixedly installed on the base.

The utility model has the beneficial effects that:

the utility model provides a six-point floating centering frock, including the die carrier, pass the die carrier and with the die carrier pivoted drive shaft of assembly, install at drive epaxial driving disk and circumference six linking arms of evenly arranging on the driving disk along the die carrier center, the one end that the driving disk was kept away from to the linking arm is connected with the actuating arm, constitutes slider-crank mechanism between driving disk, linking arm and the actuating arm, the one end that the linking arm was kept away from to the actuating arm is provided with and floats by the module, realize sliding guide through guide rail slider group between actuating arm and the die carrier. By adopting the six-point floating centering tool, quick centering and fixing of the workpiece are realized, centering accuracy is improved, and processing quality of products is ensured. By adopting the six-point floating centering tool, quick centering and fixing of the workpiece are realized, centering accuracy is improved, and processing quality of products is ensured.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present utility model;

fig. 2 is a top view of a preferred embodiment of the present utility model.

Detailed Description

The present utility model will be described in further detail by way of examples. The features and advantages of the present utility model will become more apparent from the description. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model.

As shown in fig. 1 to 2, the present embodiment provides a six-point floating centering fixture, which includes a die carrier 9, a driving shaft 2 passing through the die carrier along the center of the die carrier and rotationally assembled with the die carrier, a driving disk 4 mounted on the driving shaft, and six connecting arms 5 circumferentially uniformly arranged on the driving disk, wherein one end of each connecting arm far away from the driving disk is connected with an executing arm 6, and the connecting arms are connected with the driving disk and the connecting arms are connected with the executing arms through connecting screws 18; a crank sliding block mechanism is formed among the driving disc, the connecting arm and the executing arm, one end of the executing arm far away from the connecting arm is provided with a floating leaning module 7, and a second plane bearing 17 is assembled at the joint of the floating leaning module and the executing arm; the sliding guide is realized between the execution arm and the die carrier through a guide rail sliding block set 8, and the die carrier is fixedly arranged on a base 10. The upper side and the lower side of the assembly position of the driving shaft and the die carrier are respectively provided with a first plane bearing 14 and a first conical bearing 15, the lower side of the driving disc is provided with a second conical bearing 12, and smooth rotation between the driving shaft and the die carrier is realized through the bearings; the drive disc and the drive shaft are circumferentially positioned through a key 11, and a lock nut 16 is assembled at the outer side end of the first conical bearing and used for axially positioning the assembly of the drive disc. The guide rail and sliding block set comprises a guide rail and a sliding block which are in sliding fit, the guide rail is fixedly assembled with the die carrier through guide rail fixing screws, and the sliding block is fixedly assembled with the execution arm through sliding block fixing screws. The driving shaft is connected with a handle 3, and the driving shaft is driven to rotate by the handle. And the top of the driving shaft is connected with a lifting screw 1 so as to facilitate the whole lifting of the tool. The portion of the drive shaft between the mould carrier and the drive disc is fitted with an adjustment sleeve 13 to allow axial adjustment of the drive disc assembly.

When the device is specifically used, the cylindrical workpiece is sleeved on the outer sides of the six floating leaning modules in a surrounding manner, the handle drives the driving shaft to rotate in a reciprocating manner, the driving shaft drives the driving disc to rotate in a reciprocating manner, and the driving disc drives the actuating arm to do radial reciprocating motion until the outer side ends of the six floating leaning modules are in contact with the inner side walls of the workpiece, so that quick centering assembly between the workpiece and the die carrier is realized.

In conclusion, by adopting the six-point floating centering tool, quick centering and fixing of the workpiece are realized, centering accuracy is improved, and processing quality of products is ensured.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. Six floating centering frock of point, its characterized in that: the device comprises a die carrier, a driving shaft penetrating through the die carrier along the center of the die carrier and rotationally assembled with the die carrier, a driving disc mounted on the driving shaft, and six connecting arms circumferentially and uniformly arranged on the driving disc, wherein one end of each connecting arm far away from the driving disc is connected with an actuating arm, a crank sliding block mechanism is formed among the driving disc, the connecting arms and the actuating arms, one end of each actuating arm far away from each connecting arm is provided with a floating leaning module, and sliding guide is realized between each actuating arm and the die carrier through a guide rail sliding block group.

2. The six-point floating centering tool as claimed in claim 1, wherein: the upper side and the lower side of the assembly part of the driving shaft and the die carrier are respectively provided with a first plane bearing and a first conical bearing, the lower side of the driving disc is provided with a second conical bearing, and the outer side end of the first conical bearing is provided with a locking nut.

3. The six-point floating centering fixture of claim 2, wherein: the driving disc and the driving shaft are circumferentially positioned through keys.

4. A six point floating centering fixture as claimed in claim 3, wherein: the guide rail and sliding block set comprises a guide rail and a sliding block which are in sliding fit, the guide rail is fixedly assembled with the die carrier through guide rail fixing screws, and the sliding block is fixedly assembled with the execution arm through sliding block fixing screws.

5. The six-point floating centering fixture of claim 4, wherein: the driving shaft is connected with a handle.

6. The six-point floating centering fixture of claim 5, wherein: and the top of the driving shaft is connected with a lifting screw.

7. The six-point floating centering fixture of claim 6, wherein: one end of the connecting arm is connected with the driving disc through a connecting screw, and the other end of the connecting arm is connected with the actuating arm through the connecting screw.

8. The six-point floating centering fixture of claim 7, wherein: the part of the driving shaft between the die carrier and the driving disc is provided with an adjusting sleeve.

9. The six-point floating centering fixture of claim 8, wherein: and a second plane bearing is assembled at the joint of the floating backrest module and the actuating arm.

10. The six-point floating centering fixture of claim 9, wherein: the die carrier is fixedly arranged on the base.