CN108687484B

CN108687484B - Spring pin flange welding positioning fixture

Info

Publication number: CN108687484B
Application number: CN201810804264.0A
Authority: CN
Inventors: 耿洋茉; 黄浩; 叶作贵; 骆先梅; 莫竞芳; 吴昌硕; 肖玉斌
Original assignee: Jianglu Machinery and Electronics Group Co Ltd
Current assignee: Jianglu Machinery and Electronics Group Co Ltd
Priority date: 2018-07-20
Filing date: 2018-07-20
Publication date: 2020-07-10
Anticipated expiration: 2038-07-20
Also published as: CN108687484A

Abstract

The invention discloses a spring pin flange welding positioning fixture, which belongs to the technical field of welding processing auxiliary tools and comprises a positioning disk, wherein positioning holes for inserting spring pins are uniformly and vertically arranged on the positioning disk in an annular shape, a boss with the diameter smaller than that of the positioning disk is arranged at the upper end of the positioning disk, and a positioning table with the diameter smaller than that of the boss and used for positioning the center of a flange is vertically arranged at the upper end of the boss; a flange limiting disc for pressing the flange is coaxially arranged above the positioning table; a central shaft is arranged in the centers of the positioning disc and the flange limiting disc; nuts for fixing the positioning disc and the flange limiting disc are arranged at the two ends of the central shaft; a push disc is arranged below the positioning disc; and the push disc is annularly provided with a push rod matched with the positioning hole. The problem of the spring catch can't guarantee axiality and straightness that hangs down when with flange welding is solved.

Description

Spring pin flange welding positioning fixture

Technical Field

The invention belongs to the technical field of auxiliary welding tools, and particularly relates to a spring pin flange welding positioning fixture.

Background

As shown in fig. 1, the spring pin 3 needs to be vertically welded in the bolt hole uniformly arranged on the flange in an annular shape, the welding of the spring pin and the flange generally requires to ensure the coaxiality and the verticality of the flange and the spring pin, the verticality is generally detected by human eye observation or by a simple tool at present, and the coaxiality and the verticality of the spring pin and the flange cannot be ensured by adopting the detection method and the detection tool. In addition, under the influence of welding stress, the spring pin welding has deformation, and the perpendicularity of the spring pin is more difficult to guarantee, so that the welding yield is low.

Disclosure of Invention

The invention aims to solve the problems, provides a spring pin flange welding positioning fixture, and solves the problem that the coaxiality and the verticality cannot be ensured when a spring pin is welded with a flange.

In order to realize the purpose, the invention adopts the technical scheme that: the spring pin flange welding positioning fixture comprises a positioning disc, positioning holes for inserting spring pins are uniformly and vertically arranged on the positioning disc in an annular shape, a boss with the diameter smaller than that of the positioning disc is arranged at the upper end of the positioning disc, and a positioning table with the diameter smaller than that of the boss and used for positioning the center of a flange is vertically arranged at the upper end of the boss; a flange limiting disc for pressing the flange is coaxially arranged above the positioning table; a central shaft is arranged in the centers of the positioning disc and the flange limiting disc; nuts for fixing the positioning disc and the flange limiting disc are arranged at the two ends of the central shaft; a push disc is arranged below the positioning disc; and the push disc is annularly provided with a push rod matched with the positioning hole.

Further, the lower end of the positioning hole is provided with an ejection hole; the diameter of the ejection hole is larger than that of the ejector rod and smaller than that of the positioning hole.

Furthermore, the spring pin is in transition fit with the positioning hole.

Furthermore, the spring pin is in transition fit with the hole in the flange.

Furthermore, a rotating handle is vertically inserted into the top end of the central shaft.

The invention has the beneficial effects that:

1. the inner hole of the flange is matched with the boss, and the coaxiality of the spring pin and the flange is guaranteed.

2. The flange limiting disc is adopted to compress the flange and the spring pin during welding, the spring pin cannot deform, the perpendicularity of the end face of the flange and the axis of the spring pin can be guaranteed, and the product quality is improved.

3. The invention has the advantages of simple structure, convenient installation, accurate positioning, convenient and reliable use and low manufacturing cost, and can obviously improve the production efficiency and ensure the welding quality.

Drawings

FIG. 1 is a schematic top view of a flange;

FIG. 2 is a schematic cross-sectional view of a flange mounted spring pin;

FIG. 3 is a schematic structural view of a spring pin flange welding positioning fixture according to the present invention;

FIG. 4 is a schematic top view of the puck;

fig. 5 is a schematic sectional structure view of the puck.

In the figure: 1. positioning a plate; 2. a flange; 3. a spring pin; 4. a boss; 5. a flange limiting disc; 7. a nut; 8. a central shaft; 9. rotating the handle; 12. a top rod; 13. pushing the disc; 101. an ejection aperture; 102. positioning holes; 41. and a positioning table.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

As shown in fig. 1 to 5, the specific structure of the present invention is: the spring pin flange welding positioning fixture comprises a positioning disk 1, wherein positioning holes 102 for inserting spring pins 3 are uniformly and vertically arranged on the positioning disk 1 in an annular shape, a boss 4 with the diameter smaller than that of the positioning disk 1 is arranged at the upper end of the positioning disk 1, and a positioning table 41 with the diameter smaller than that of the boss 4 and used for positioning the center of a flange 2 is vertically arranged at the upper end of the boss 4; a flange limiting disc 5 for pressing the flange 2 is coaxially arranged above the positioning table 41; a central shaft 8 is arranged in the centers of the positioning disc 1 and the flange limiting disc 5; nuts 7 for fixing the positioning disc 1 and the flange limiting disc 5 are arranged at two ends of the central shaft 8; a push disc 13 is arranged below the positioning disc 1; the push disc 13 is provided with a push rod 12 in an annular shape, and the push rod is matched with the positioning hole 102.

Preferably, the lower end of the positioning hole 102 is provided with an ejection hole 101; the diameter of the ejection hole 101 is larger than that of the ejection rod 12 and smaller than that of the positioning hole 102.

Preferably, the spring pin 3 is in transition fit with the positioning hole 102.

Preferably, the spring pin 3 is in transition fit with the hole on the flange 2.

Preferably, a rotating handle 9 is vertically inserted into the top end of the central shaft 8.

The working principle of the spring pin flange welding positioning fixture is as follows:

firstly, inserting a spring pin 3 to be welded into a positioning hole 102 on a positioning disc 1, then sleeving a flange 2 to be welded with the spring pin into the upper end of the spring pin 3, and sleeving the flange 2 on a positioning table 41 of the positioning disc 1 at the same time; the flange limiting disc 5 is pressed at the upper end of the flange 2, the central shaft 8 sequentially penetrates through the flange limiting disc 5, the flange 2 and the positioning disc 1, finally the whole tool is locked and fixed through nuts 7 and gaskets arranged at two ends of the central shaft, and then the joint of the spring pin 3 and the flange 2 is welded.

After the welding is finished and the whole position to be welded is cooled, the nut 7 is loosened, the push disc 13 is driven to extrude forwards, and the ejector rod 12 arranged on the push disc 13 ejects the welded spring pin 3 and the flange 2 out of the positioning fixture.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. Spring catch flange welding position anchor clamps, its characterized in that: the positioning device comprises a positioning disc (1), wherein positioning holes (102) for inserting spring pins (3) are uniformly and vertically arranged on the positioning disc (1) in an annular shape, a boss (4) with the diameter smaller than that of the positioning disc (1) is arranged at the upper end of the positioning disc (1), and a positioning table (41) with the diameter smaller than that of the boss (4) and used for positioning the center of a flange (2) is vertically arranged at the upper end of the boss (4); a flange limiting disc (5) for pressing the flange (2) is coaxially arranged above the positioning table (41); a central shaft (8) is arranged at the centers of the positioning disc (1) and the flange limiting disc (5); nuts (7) used for fixing the positioning disc (1) and the flange limiting disc (5) are arranged at two ends of the central shaft (8); a push disc (13) is arranged below the positioning disc (1); the push disc (13) is annularly provided with a push rod (12) matched with the positioning hole (102); the lower end of the positioning hole (102) is provided with an ejection hole (101); the diameter of the ejection hole (101) is larger than that of the ejection rod (12) and smaller than that of the positioning hole (102).

2. The spring pin flange welding positioning fixture of claim 1, characterized in that: the spring pin (3) is in transition fit with the positioning hole (102).

3. The spring pin flange welding positioning fixture of claim 1, characterized in that: the spring pin (3) is in transition fit with the hole on the flange (2).

4. The spring pin flange welding positioning fixture of claim 1, characterized in that: a rotating handle (9) is vertically inserted into the top end of the central shaft (8).