CN-116329856-A - Piston rod welding tool

CN116329856ACN 116329856 ACN116329856 ACN 116329856ACN-116329856-A

Abstract

The invention relates to the technical field of piston rod welding, in particular to a piston rod welding tool. The problem that the rod head is easy to loose and slide on the piston rod is solved. The novel rod head comprises a bottom plate, wherein a first supporting piece and a second supporting piece are arranged on the bottom plate and used for supporting a piston rod body and a rod head body respectively, a fixing piece used for fixing the piston rod body is arranged on the first supporting piece, the first fixing piece adjusts the fixing distance along the radial direction of the piston rod, a moving piece used for driving the rod head body to longitudinally move is arranged between the second supporting piece and the bottom plate, and the piston rod body corresponds to the rod head body concentrically when the rod head body longitudinally moves in place. The invention prevents the piston rod body from generating offset displacement with the rod head body, prevents the rod head body from loosening and sliding on the piston rod body, prevents the rod head from sliding, and ensures the welding effect.

Inventors

ZHOU YONGQING
ZHAO WEIFENG
ZHU ZHAOHONG

Assignees

KUNSHAN YOUJIAXIN MACHINERY EQUIPMENT CO LTD

Dates

Publication Date: 20230627
Application Date: 20230324
Priority Date: 20230324

Claims (6)

1. The piston rod welding tool comprises a bottom plate, wherein a first supporting piece and a second supporting piece are arranged on the bottom plate and used for supporting a piston rod body and a rod head body respectively, and the welding tool is characterized in that a fixing piece used for fixing the piston rod body is arranged on the first supporting piece, the first fixing piece adjusts a fixed distance along the radial direction of a piston rod, a moving piece used for driving the rod head body to longitudinally move is arranged between the second supporting piece and the bottom plate, and the piston rod body corresponds to the rod head body concentrically when the rod head body longitudinally moves in place.
2. The welding fixture for the piston rod of claim 1, wherein the top end of the first supporting member is in a V-shaped structure which is horizontally and symmetrically arranged, the piston rod body is horizontally arranged on the inner side of the first supporting member, and the central axis of the piston rod body longitudinally corresponds to the center of the first supporting member.
3. The piston rod welding tool as set forth in claim 2, wherein the fixing member includes a fixing frame and a screw rod, both ends of the fixing frame are respectively connected to both side top ends of the first supporting member, the screw rod is screwed to a middle part of the fixing frame, an inner end of the screw rod is close to the piston rod body, and the screw rod moves along a radial direction of the piston rod body.
4. A piston rod welding fixture as claimed in claim 3, wherein the number of first supports is at least two, the first supports being distributed along the axial direction of the piston rod body.
5. The welding fixture for the piston rod of claim 3, wherein the moving part comprises a moving seat, guide rods and a screw rod, the moving seat is longitudinally arranged on the bottom plate in a plate shape, the upper end and the lower end of one side, close to the piston rod body, of the moving seat are vertically connected with support plates, the upper end and the lower end of the guide rods are connected to corresponding support plates, the number of the guide rods is at least two, the second support parts are in sliding fit on the guide rods, the two ends of the screw rod are in rotating fit on the two corresponding support plates, the screw rod is in threaded connection with the second support parts, the rod head is placed on the second support parts, and the central axis of the screw rod is parallel to the central axis of the screw rod and corresponds to each other.
6. The piston rod welding tool of claim 5, wherein a rotating hand wheel is fixedly connected after the top end of the screw rod penetrates out of the support plate.

Description

Piston rod welding tool Technical Field The invention relates to the technical field of piston rod welding, in particular to a piston rod welding tool. Background The piston rod is a connecting part for supporting the piston to do work, and one end of the piston rod is required to be welded with an earring so as to facilitate the guiding and heat conduction of the piston rod. However, when the conventional piston rod is used for welding the rod head, the placement of the piston rod and the rod head is unstable, offset displacement is easy to occur, the rod head is easy to slide due to loose sliding on the piston rod, and the welding of the rod head is affected. Disclosure of Invention The invention provides a piston rod welding tool, which drives a screw rod to position and clamp a piston rod body, drives a second supporting piece to longitudinally move by rotating a hand wheel, drives a rod head body to move towards the piston rod body until the piston rod body and the rod head body concentrically correspond to each other, completes positioning and installation, facilitates subsequent welding operation, avoids offset displacement of the piston rod body and the rod head body, prevents the rod head body from loosening and sliding on the piston rod body, prevents the rod head from sliding, and ensures the welding effect. In order to solve the technical problems, the invention adopts the following technical scheme: the piston rod welding tool comprises a bottom plate, a first supporting piece and a second supporting piece are arranged on the bottom plate and used for supporting a piston rod body and a rod head body respectively, a fixing piece used for fixing the piston rod body is arranged on the first supporting piece, the first fixing piece is used for adjusting a fixed distance along the radial direction of the piston rod, a moving piece used for driving the rod head body to longitudinally move is arranged between the second supporting piece and the bottom plate, and the piston rod body corresponds to the rod head body concentrically when the rod head body longitudinally moves in place. Further, the top end of the first supporting piece is of a V-shaped structure which is horizontally and symmetrically arranged, the piston rod body is horizontally arranged on the inner side of the first supporting piece, and the central axis of the piston rod body corresponds to the center of the first supporting piece longitudinally. Further, the mounting includes mount and screw rod, the both ends of mount are connected the both sides top of first support piece respectively, screw rod threaded connection is in the middle part of mount, the screw rod inner is close to the piston rod body, the radial movement of screw rod along the piston rod body. Further, the number of the first supporting pieces is at least two, and the first supporting pieces are distributed along the axial direction of the piston rod body. Further, the moving part comprises a moving seat, guide rods and a screw rod, the moving seat is longitudinally arranged on the bottom plate in a plate shape, the upper end and the lower end of the moving seat, which are close to one side of the piston rod body, are vertically connected with support plates, the upper end and the lower end of the guide rods are connected to the corresponding support plates, the number of the guide rods is at least two, the second support members are in sliding fit with the guide rods, the two ends of the screw rod are in rotating fit with the two corresponding support plates, the screw rod is in threaded connection with the second support members, the screw rod is placed on the second support members, and the central axes of the screw rod are parallel to the central axes of the screw rod and correspond to each other. Further, the top end of the screw rod penetrates out of the support plate and is fixedly connected with a rotary hand wheel. The invention has the beneficial effects that: the driving screw rod carries out positioning and clamping to the piston rod body, drives the second support piece to longitudinally move through rotating the hand wheel, drives the rod head body to move to the piston rod body until the piston rod body corresponds to the rod head body concentrically, completes positioning and installation, is convenient for follow-up welding operation, avoids the piston rod body to deviate from the rod head body and displace, prevents the rod head body from loosening and sliding on the piston rod body, prevents the rod head from sliding, and ensures the welding effect. Drawings Fig. 1 is a schematic perspective view of a welding tool for a piston rod; reference numerals illustrate: 01. a piston rod body; 02. a club head body; 1. a bottom plate; 2. a first support; 3. a second support; 4. a fixing member; 41. a fixing frame; 42. a screw; 5. a moving member; 51. a movable seat; 52. a guide rod; 53. a screw rod; 6. a support plate; 7. the hand wheel is rotated. Detailed D