CN108356552B

CN108356552B - Joint machining clamping tool

Info

Publication number: CN108356552B
Application number: CN201810023109.5A
Authority: CN
Inventors: 刘拥军; 张全民; 贾广涛; 王路平; 李静瑞; 李晓光; 张子明; 王安平; 崔文霞; 陈思远; 赵进良; 胡中辉; 吴比
Original assignee: State Grid Corp of China SGCC; Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Current assignee: State Grid Corp of China SGCC; Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2020-01-07
Anticipated expiration: 2038-01-10
Also published as: CN108356552A

Abstract

The invention relates to a clamping tool for joint machining. The joint processing clamping tool comprises a base, wherein the base is provided with positioning holes for allowing at least two cylinders to be processed to be connected to be inserted and radially positioning the cylinders, the holes of the positioning holes are used for supporting the outer side surface of the bottom of a U-shaped groove structure to be processed and connected along the supporting surface, the joint processing clamping tool further comprises a compression structure used for compressing the U-shaped groove structure from top to bottom on the supporting surface, and the joint processing clamping tool further comprises a rotation stopping positioning pin used for simultaneously penetrating at least two through holes to be processed and connected. Through connecting processing clamping frock, can realize simultaneously to a plurality of waiting to process to connect and carry out automatic positioning orientation, only need the clamp joint can process the joint, positioning accuracy is high, and stability is good, has improved production efficiency, has effectively guaranteed the processingquality who connects, creates better economic benefits.

Description

Joint machining clamping tool

Technical Field

The invention relates to a clamping tool for joint machining.

Background

A joint with a special shape is shown in figures 1 to 2 and comprises an upper part and a lower part which are integrally arranged, wherein the lower part is a cylinder, the upper part is a U-shaped groove structure, through holes are correspondingly arranged on the groove walls at two sides of the U-shaped groove structure, and round corners are arranged on the inner side surfaces, close to the opening, of the groove walls at two sides of the U-shaped groove structure. When the joint is used for processing round corners, a cylinder is generally arranged on a chuck, then a workpiece is aligned through a magnetic force meter, and finally the workpiece is processed through a machine tool. The machining process is complicated in operation, troublesome in clamping and alignment, large in labor hour consumption, and machining errors are increased due to inaccurate alignment, so that the machining precision is difficult to guarantee.

Disclosure of Invention

The invention aims to provide a connector machining clamping tool with high positioning precision.

In order to achieve the purpose, the joint machining clamping tool adopts the following scheme:

scheme 1: the joint processing clamping tool comprises a base, wherein the base is provided with positioning holes for allowing at least two cylinders to be processed to be connected to be inserted and radially positioning the cylinders, the holes of the positioning holes are used for supporting the outer side surface of the bottom of a U-shaped groove structure to be processed and connected along the supporting surface, the joint processing clamping tool further comprises a compression structure used for compressing the U-shaped groove structure from top to bottom on the supporting surface, and the joint processing clamping tool further comprises a rotation stopping positioning pin used for simultaneously penetrating at least two through holes to be processed and connected.

Has the advantages that: meanwhile, a plurality of joints to be processed are automatically positioned and oriented, the joints can be processed only by clamping the joints, the positioning precision is high, the stability is good, the production efficiency is improved, the processing quality of the joints is effectively guaranteed, and better economic benefits are created.

Scheme 2: on the basis of the scheme 1, the pressing structure presses the inner side surface of the groove bottom of the U-shaped groove structure onto the supporting surface by pressing. The pressing plate is limited through the groove walls on the two sides, so that the pressing plate is prevented from sliding, and the pressing structure is more reliable.

Scheme 3: on the basis of the scheme 1, four positioning holes are arranged in two rows and two columns. The four joints to be machined can be clamped simultaneously, and the problem that the clamping tool is too heavy and inconvenient to move is avoided.

Scheme 4: on the basis of the scheme 2, the pressing structure comprises a pressing screw fixed on the base and a pressing plate used for pressing the inner side surface of the bottom of the U-shaped groove. Treat through compression screw and clamp plate and process the joint and compress tightly, easy operation just is difficult not hard up.

Scheme 5: on the basis of scheme 4, the clamp plate has two, and compresses tightly through the locking plate of wearing the dress on the compression screw, and two clamp plates correspond two rows and wait to process the joint, and the both ends of every clamp plate are used for compressing tightly two of the same row and wait to process the joint.

Scheme 6: on the basis of

scheme

4 or 5, the clamp plate is D shape axle, the plane of D shape axle is for being used for with the pressing surface of the tank bottom inside flank pressure tight fit in U-shaped groove, D shape axle still is equipped with the breach of stepping down of dodging the rotation-stopping locating pin on the arc surface at its both ends, D shape axle is equipped with on the arc surface at its middle part and is used for with the pressing surface of locking plate pressure tight fit. Through the pressing fit of the pressing plate, the rotation stopping positioning pin and the locking pressing plate, the pressing structure is more reliable.

Scheme 7: on the basis of scheme 6, the middle part of locking plate is equipped with the screw. The compression screw rod penetrates through the middle part of the locking plate, and when the locking plate is compressed under stress, the pressure plate contacted with the lower part of the locking plate can be uniformly stressed.

Drawings

FIG. 1 is a schematic view of the structure of a joint to be machined;

FIG. 2 is a partial cross-sectional view of a joint to be machined;

fig. 3 is a use state diagram of the clamping tool for processing a joint according to the embodiment 1 of the invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a top view of the base of FIG. 3;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

FIG. 7 is a schematic view of the platen of FIG. 3;

FIG. 8 is a cross-sectional view taken at B-B of FIG. 7;

FIG. 9 is a schematic structural view of the locking plate of FIG. 3;

in the figure: 1. a joint; 2. a base; 3. pressing a plate; 4. a compression screw; 5. a rotation stopping positioning pin; 6. a locking plate; 7. a nut; 8. a cylinder; 9. a U-shaped slot structure; 10. perforating; 11. round corners; 12. and (7) positioning the holes.

Detailed Description

The following describes a further embodiment of the clamping tool for processing a joint according to the present invention with reference to the accompanying drawings.

The specific embodiment 1 of the joint machining clamping tool disclosed by the invention comprises a base 2, wherein 4 positioning holes 12 are formed in the base 2, the lower part of the joint 1 to be machined is a cylinder 8, the upper part of the joint 1 to be machined is a U-shaped groove structure 9, and the 4 cylinders 8 of the joints 1 to be machined are inserted into the positioning holes 12 in the base 2, so that the radial positioning of the joints 1 to be machined is realized. When the U-shaped groove structure 9 of the joint 1 to be processed is pressed from top to bottom from the upper pressing structure, the hole edge of the positioning hole 12 on the base 2 forms a supporting surface for supporting the outer side surface of the bottom of the U-shaped groove structure 9 of the joint 1 to be processed. The joint 1 to be processed is rotated to enable the direction of a notch of the upper U-shaped groove structure 9 of the joint 1 to be consistent, at the moment, two pressing plates 3 are placed on the inner side surface of the bottom of the U-shaped groove structure 9 of the joint 1 to be processed, then two rotation stopping positioning pins 5 are respectively inserted into through holes 10 (every two positioning pins are penetrated together) in the groove wall of the U-shaped groove structure 9 of the joint 1 to be processed (fine adjustment is carried out if necessary), so that the direction of the joint 1 is fixed, and the joint 1 can not rotate any more. After the direction of the fixed joint 1 is fixed, the locking plate 6 penetrates through the compression screw 4 on the base 2 and is placed on the pressing plate 3, at the moment, the nut 7 is screwed, so that the locking plate 6 can be compressed, the pressing plate 3 at the lower part is pressed from the top to the bottom by the locking plate 6 and acts on the inner side surface of the U-shaped groove structure 9, which is in contact with the lower part of the pressing plate 3 and is to be processed with the joint 1, and the outer side surface of the bottom of the U-shaped groove structure 9 is compressed to the hole edge of the positioning hole 12. At the moment, the joint 1 to be machined cannot rotate or move, so that the clamping of the joint 1 to be machined is realized, the positioning precision is high, the stability is good, the production efficiency is improved, the machining quality of the joint is effectively guaranteed, and better economic benefit is created.

Example 2: the difference from the embodiment 1 is that the positioning holes on the base are arranged in a single row or a plurality of rows and columns. When the positioning holes are arranged in a single row, the pressing structure comprises pressing plates and two locking plates, the number of the pressing plates is the same as that of the positioning holes, the two locking plates are perpendicular to the pressing plates and respectively press two ends of each pressing plate, and the two locking plates are respectively locked on the base through corresponding pressing screw rods.

Example 3: the difference from the embodiment 1 is that the pressing plate presses the joint to be processed on the base by pressing the groove edge of the U-shaped groove structure.

Example 4: the difference with embodiment 1 is that the pressing structure comprises a pressing cam which is rotatably assembled on the base, and a pressing plate which is in press fit with the outer contour surface of the pressing cam, when the cam is rotated, the pressing plate can be pushed to move downwards through the outer contour surface of the cam, and the lower side surface of the pressing plate presses the U-shaped groove structure.

Claims

1. The utility model provides a joint processing clamping frock, characterized by: the joint machining clamping tool comprises a base, wherein a positioning hole for inserting and radially positioning a cylinder of at least two joints to be machined is formed in the base, the hole edge of the positioning hole forms a supporting surface for supporting the outer side surface of the bottom of a U-shaped groove structure of the joint to be machined, the joint machining clamping tool further comprises a pressing structure for pressing the U-shaped groove structure onto the supporting surface from top to bottom, and the joint machining clamping tool further comprises a rotation stopping positioning pin for simultaneously penetrating through holes of the at least two joints to be machined; the pressing structure presses the inner side surface of the bottom of the U-shaped groove structure to press the U-shaped groove structure on the supporting surface; the compact structure is including fixing the clamp plate of the tank bottom medial surface that compresses tightly the U-shaped groove on the base and fixing the compression screw on the base, the locating hole has four and is two rows of arranging, and the central line of locating hole is the rectangle, the clamp plate has two, and compresses tightly through the locking plate of wearing the dress on the compression screw, and two clamp plates correspond two rows and wait to process the joint, and the both ends of every clamp plate are used for compressing tightly two of same row and wait to process the joint, it has two to spline the locating pin, and every both ends of splines the locating pin pass two of same row and wait to process the perforation that connects.

2. The joint machining clamping tool according to claim 1, which is characterized in that: the clamp plate is D shape axle, the plane of D shape axle is for being used for with the pressing surface of the tank bottom inside side pressure tight fit in U-shaped groove, D shape axle still is equipped with the breach of stepping down of dodging the locating pin of splining on the arc surface at its both ends, D shape axle is equipped with the plane that compresses tightly that is used for with locking plate pressure tight fit on the arc surface at its middle part.

3. The joint machining clamping tool according to claim 2, which is characterized in that: and a screw hole is formed in the middle of the locking plate.