CN215432602U

CN215432602U - Positioning tool

Info

Publication number: CN215432602U
Application number: CN202121453356.2U
Authority: CN
Inventors: 汤健; 陶勇; 钟鲁江
Original assignee: JIANGSU WUDONG MACHINERY CO Ltd
Current assignee: JIANGSU WUDONG MACHINERY CO Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-07
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a positioning tool which comprises a lower bracket and an upper bracket, wherein the upper bracket is used for clamping a cylinder and is positioned and installed on the lower bracket in a way that a groove is clamped with a rod. The barrel is clamped on the upper bracket, the upper bracket is positioned and installed on the lower bracket and fixed under the clamping action of the groove and the rod, after one end of the barrel is machined, the barrel and the upper bracket are integrally turned for 180 degrees and automatically positioned under the clamping action of the groove and the rod, the other end of the barrel is machined, and through the arrangement, the barrel is automatically corrected, and the clamping reference of the other end of the barrel is unchanged, so that the machining precision is improved.

Description

Positioning tool

Technical Field

The utility model relates to the technical field of machine tool machining, in particular to a positioning tool.

Background

When a large-diameter long cylinder workpiece is processed at two end faces (such as plane milling, boring, drilling and the like), equal-height blocks and tools are generally used for clamping, a theodolite or a three-coordinate system is used for correcting, the clamping is carried out again after one end is processed, the processed face or hole is used as a reference, the processing of the other end is carried out after the correction, time and labor are wasted, and the processing precision is easily poor due to secondary clamping.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the technical problem that the precision of two machined end faces of a traditional large-diameter long cylinder is poor is solved.

The utility model provides a positioning tool which comprises a lower bracket and an upper bracket, wherein the upper bracket is used for clamping a cylinder and is positioned and installed on the lower bracket in a way that a groove is clamped with a rod.

The barrel is clamped on the upper bracket, the upper bracket is positioned and installed on the lower bracket and fixed under the clamping action of the groove and the rod, after one end of the barrel is machined, the barrel and the upper bracket are integrally turned for 180 degrees and automatically positioned under the clamping action of the groove and the rod, the other end of the barrel is machined, and through the arrangement, the barrel is automatically corrected, and the clamping reference of the other end of the barrel is unchanged, so that the machining precision is improved.

Further, the groove is V type groove, distribute in go up the bracket lower extreme with the bottom bracket upper end to be the mutual disposition, the pole is cylindrical, and the joint in between the V type groove. So set up, can not the drunkenness when V type groove and pole joint, the joint is more firm, and the precision is also higher.

Further, the V-shaped grooves are identical in structure, four groups of corresponding two V-shaped grooves and four groups of corresponding rods are arranged, a rectangle is formed, and the V-shaped grooves and the rods are evenly distributed at two ends of the cylinder body. So set up, the structure is more firm after upper bracket and lower carriage are connected.

Further, the rod diameter error is 0.003mm or less. The coplanar inclined plane of the V-shaped groove of the upper bracket is formed in a cutting mode by a knife, and the coplanar inclined plane of the V-shaped groove of the lower bracket is also formed in a cutting mode by the knife, so that the coplanar inclined planes are ensured to be positioned on one plane; through the machining precision of the V-shaped groove and the rod, the clamping precision of the cylinder body is controlled, and the machining and the installation are more convenient.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a right side view of the present invention;

FIG. 2 is a front view of the present invention;

in the figure: 1. a lower bracket; 2. an upper bracket; 3. a rod; 4. and a V-shaped groove.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-2, the utility model relates to a positioning tool, which is arranged on a workbench and comprises two lower brackets 1 and an upper bracket 2 correspondingly arranged with the lower brackets 1, wherein the upper bracket 2 clamps and fixes two ends of a cylinder body through a clamping belt.

The lower end of the upper bracket 2 and the upper end of the lower bracket 1 are both provided with a clamping block, the clamping block is provided with a V-shaped groove 4, and the V-shaped groove 4 on the upper bracket 2 corresponds to the V-shaped groove 4 at the upper end of the lower bracket 1 and is arranged oppositely. The cylindrical rod 3 is connected in the corresponding V-shaped groove 4 in a clamping mode, and due to the arrangement, the V-shaped groove 4 cannot move when being connected with the rod 3 in a clamping mode, the clamping is firmer, and the processing precision of the barrel is higher. The two corresponding V-shaped grooves 4 and the rods 3 are arranged into four groups to form a rectangle and are uniformly distributed at the two ends of the cylinder body. So set up, the structure is more firm after upper bracket 2 is connected with lower bracket 1.

The diameter error of the rod 3 is less than 0.003 mm. The coplanar inclined plane of the V-shaped groove 4 of the upper bracket 2 is formed in a cutting mode, and the coplanar inclined plane of the V-shaped groove 4 of the lower bracket 1 is also formed in a cutting mode, so that the inclined planes are positioned on one plane; through the machining precision of the V-shaped groove 4 and the rod 3, the clamping precision of the cylinder body is controlled, and the machining and the installation are more convenient.

Clamping a cylinder on an upper bracket 2, placing a rod 3 into a V-shaped groove 4 of a lower bracket 1, then clamping and connecting the rod 3 in the V-shaped groove 4 of the upper bracket 2 to realize mounting and positioning, and fixing the upper bracket 2 and the lower bracket 1 through bolts and nuts; after barrel one end processing was accomplished, the barrel turned 180 with upper bracket 2 is whole to realize automatic positioning with the V type groove 4 joint again of upper bracket 2 on pole 3, process the barrel other end, so set up, barrel automatic correction, barrel other end clamping benchmark is unchangeable, thereby has improved the machining precision.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a location frock which characterized in that: including lower bracket (1) and upper bracket (2), upper bracket (2) are used for the clamping barrel to install through the mode location of groove and pole (3) joint on lower bracket (1).

2. The positioning tool according to claim 1, characterized in that: the groove is V type groove (4), distribute in upper bracket (2) lower extreme with bottom bracket (1) upper end to be the mutual disposition, pole (3) are cylindrical, and the joint in between V type groove (4).

3. The positioning tool according to claim 2, characterized in that: the V-shaped grooves (4) are identical in structure, and the corresponding two V-shaped grooves (4) and the rods (3) are arranged into four groups to form a rectangle and are uniformly distributed at two ends of the cylinder body.

4. The positioning tool according to claim 3, characterized in that: the diameter error of the rod (3) is less than 0.003 mm.