CN219169990U

CN219169990U - Electron beam welding fixture for pressure-bearing pipe assembly

Info

Publication number: CN219169990U
Application number: CN202222668267.0U
Authority: CN
Inventors: 徐晓龙; 巴依尔; 侯光伟; 张翼飞; 孙立元; 孙伟
Original assignee: Shenyang Jinfeng Special Cutting Tools Co ltd
Current assignee: Shenyang Jinfeng Special Cutting Tools Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-06-13
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses an electron beam welding fixture for a pressure-bearing pipe assembly, which comprises: the clamping device is used for clamping the pressure-bearing pipe assembly in the vertical direction, and the clamping direction of the clamping device and the central axis of the pressure-bearing pipe assembly are positioned on the same vertical straight line; and the driving device is used for driving the pressure-bearing pipe assembly to rotate. The utility model reduces the occupied area in the placement site and ensures the welding quality of the upper joint of the pressure-bearing pipe assembly.

Description

Electron beam welding fixture for pressure-bearing pipe assembly

Technical Field

The utility model relates to the field of welding fixtures, in particular to an electron beam welding fixture for a pressure-bearing pipe assembly.

Background

The pressure-bearing pipe assembly is formed by welding an upper joint, a circumferential positioning cylindrical pin, a middle pipe and an outer pipe after assembly. In order to ensure the welding quality of the seam on the assembled pressure-bearing pipe assembly by the electron beam welding device, the assembled pressure-bearing pipe assembly needs to be fixed by a clamp, so that the stability of the assembled state of the pressure-bearing pipe assembly is ensured. Because the clamp and the electron beam welding device need to be placed together for use, a large ground area in a place is occupied.

Meanwhile, as the electron beam welding device needs to carry out circumference continuous welding on the joint on the pressure-bearing pipe assembly, the situation that the electron beam emitted by the electron gun is deviated up and down due to vibration of the device easily exists in the process that the electron gun of the electron beam welding device rotates and moves around the pressure-bearing pipe assembly, so that the welding quality of the joint on the pressure-bearing pipe assembly is affected.

Disclosure of Invention

The utility model aims to provide an electron beam welding fixture for a pressure-bearing pipe assembly, which reduces the occupied area in a placement site, realizes circumferential continuous welding of joints on the pressure-bearing pipe assembly by an electron beam welding device in a manner of driving the pressure-bearing pipe assembly to rotate, and ensures the stability of the vertical height of an electron beam relative to the pressure-bearing pipe assembly.

The utility model solves the problems by adopting the following technical scheme:

an electron beam welding tooling fixture for a pressure-bearing pipe assembly, comprising:

the clamping device is used for clamping the pressure-bearing pipe assembly in the vertical direction, and the clamping direction of the clamping device and the central axis of the pressure-bearing pipe assembly are positioned on the same vertical straight line;

and the driving device is used for driving the pressure-bearing pipe assembly to rotate.

As a further improvement of the technical scheme, the clamping device comprises a supporting column, an extension arm and a three-jaw chuck, one end of the extension arm is detachably arranged on the top end of the supporting column, the other end of the extension arm is rotatably connected with a supporting block through a rolling bearing, the supporting block is positioned right above the three-jaw chuck and is positioned on the central axis of the three-jaw chuck, and when the lower end of the pressure-bearing pipe assembly is clamped and fixed on the three-jaw chuck, the upper end of the pressure-bearing pipe assembly is supported on the bottom surface of the supporting block, and the three-jaw chuck realizes rotation through the driving device. Through the cooperation use between three-jaw chuck and the support piece to realized the pressure-bearing tube subassembly and fixed at the centre gripping between three-jaw chuck and the support piece, combined the antifriction bearing who supports and set up between piece and the extension arm, can drive pressure-bearing tube subassembly together and rotate when making drive arrangement drive three-jaw chuck rotate, thereby make the seam between two adjacent parts on the pressure-bearing tube subassembly can be located the emission orbit of electron beam in proper order at the pressure-bearing tube subassembly pivoted in-process, and then realize the welding of electron beam butt joint.

As a further improvement of the technical scheme, the support column comprises an upper column body and a lower column body, wherein the upper column body is inserted into the lower column body from top to bottom and can not rotate, and a linear driving device for driving the upper column body to vertically lift relative to the lower column body is arranged on the lower column body. The linear driving device has the advantages that the linear driving device is used for driving the upper column body, the vertical distance between the propping block and the three-jaw chuck is adjusted, the pressure-bearing pipe assemblies with different lengths can be clamped and fixed between the propping block and the three-jaw chuck, the application range of the clamp is improved, the use convenience of the clamp is improved, and the utilization rate of the clamp is guaranteed.

As a further improvement of the technical scheme, the rubber layer is arranged on the bottom surface of the propping block, so that friction between the propping block and the upper end of the pressure-bearing pipe assembly is increased, and the clamping effect of the propping block and the three-jaw chuck on the pressure-bearing pipe assembly is guaranteed.

As a further improvement of the technical scheme, the device further comprises a support frame, the clamping device and the driving device are detachably arranged on the support frame, a plurality of fixing sheets are arranged on the bottom surface of the support frame, and mounting holes are formed in the fixing sheets. Through the setting of support frame for clamping device and drive arrangement can leave the ground and place, thereby reduced the moist condition in place of placing the influence of the electronic component on the anchor clamps. Simultaneously, through the setting of stationary blade and mounting hole on the stationary blade on the support frame for anchor clamps can adopt the fix with screw on place, thereby ensured anchor clamps placement state's stability.

Compared with the prior art, the utility model has the following advantages and effects:

according to the utility model, the clamping device is used for clamping and fixing the pressure-bearing pipe assembly in the vertical direction, so that the whole clamp is vertical, the occupied area of furniture is reduced, and the utilization rate of the field is improved. Meanwhile, the driving effect of the driving device on the pressure-bearing pipe assembly is achieved, the joint between two adjacent components on the pressure-bearing pipe assembly can be sequentially located on the emission track of the electron beam in the process of rotating the pressure-bearing pipe assembly, so that welding of the electron beam to the joint is achieved, the situation that the height of the electron beam relative to the pressure-bearing pipe assembly deviates up and down due to the fact that the welding device performs circumferential continuous electron beam welding on the pressure-bearing pipe assembly in a rotating mode around the pressure-bearing pipe assembly is avoided, stability of the vertical height of the electron beam relative to the pressure-bearing pipe assembly is guaranteed, and welding quality of the joint on the pressure-bearing pipe assembly is guaranteed.

Drawings

FIG. 1 is a schematic structural view of an electron beam welding fixture for a pressure-bearing pipe assembly.

FIG. 2 is a schematic side view of an electron beam welding fixture for a pressure-containing tube assembly according to the present utility model.

Fig. 3 is a schematic cross-sectional view of the structure between the extension arm and the abutment block shown in fig. 2.

The clamping device 1, the driving device 2, the supporting frame 3, the fixing piece 31, the mounting hole 32, the supporting column 4, the upper column 41, the lower column 42, the extension arm 5, the three-jaw chuck 6, the rolling bearing 7, the supporting block 8, the rubber layer 81, the pressure-bearing pipe assembly 9, the upper joint 91, the middle pipe 92, the outer pipe 93 and the joint 94.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Referring to fig. 1 and 2, an electron beam welding fixture for a pressure-bearing pipe assembly according to this embodiment includes a clamping device 1 for clamping the pressure-bearing pipe assembly in a vertical direction, a driving device 2 for driving the pressure-bearing pipe assembly to rotate, and a supporting frame 3, wherein the clamping direction of the clamping device 1 and the central axis of the pressure-bearing pipe assembly are on the same vertical straight line, the clamping device 1 and the driving device 2 are detachably mounted on the supporting frame 3, a plurality of fixing plates 31 are arranged on the bottom surface of the supporting frame 3, and mounting holes 32 are formed in the fixing plates 31.

In this embodiment, the driving device 2 is a positioner, and when the welding between the components on the pressure-bearing pipe assembly in the vertical state is completed, the vertical state can be changed into the horizontal state through the positioner, so that a worker can conveniently transport the pressure-bearing pipe assembly taken down from the clamping device 1 through a transport means.

Referring to fig. 2 and 3, the clamping device 1 includes a support column 4, an extension arm 5, and a three-jaw chuck 6, one end of the extension arm 5 is detachably mounted on the top end of the support column 4, the other end of the extension arm 5 is rotatably connected with a supporting block 8 through a rolling bearing 7, the supporting block 8 is located right above the three-jaw chuck 6 and is located on the central axis of the three-jaw chuck 6, when the lower end of the pressure-bearing tube assembly is clamped and fixed on the three-jaw chuck 6, the upper end of the pressure-bearing tube assembly is supported on the bottom surface of the supporting block 8, and the three-jaw chuck 6 is rotated through the driving device 2.

The support column 4 comprises an upper column 41 and a lower column 42, the upper column 41 is inserted into the lower column 42 from top to bottom and is not rotatable, and a linear driving device for driving the upper column 41 to vertically lift relative to the lower column 42 is installed on the lower column 42. In this embodiment, the linear driving device is an electro-hydraulic push rod.

Referring to fig. 3, a rubber layer 81 is provided on the bottom surface of the supporting block 8.

The using method of the clamp is as follows:

step one: the upper cylinder is driven by the linear driving device to vertically move upwards relative to the lower cylinder, so that the vertical distance between the propping block and the three-jaw chuck is longer than the length of the pressure-bearing pipe assembly;

step two: the lower end of the outer tube of the pressure-bearing tube assembly is fixed through a three-jaw chuck, then the middle tube and the upper joint are assembled through circumferential positioning cylindrical pins in sequence, so that the assembly of the pressure-bearing tube assembly is completed, then the upper column is driven by the linear driving device to vertically move downwards relative to the lower column until the top ends of the propping block and the upper joint prop against, the assembled pressure-bearing tube assembly is clamped and fixed between the propping block and the three-jaw chuck, and the fixation of the pressure-bearing tube assembly on the clamp is completed.

The foregoing description of the utility model is merely exemplary of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a pressure-bearing pipe assembly electron beam welding frock clamp which characterized in that includes:

2. The pressure tube assembly electron beam welding fixture of claim 1, wherein: the clamping device comprises a support column, an extension arm and a three-jaw chuck, one end of the extension arm is detachably arranged on the top end of the support column, the other end of the extension arm is rotationally connected with a propping block through a rolling bearing, the propping block is positioned right above the three-jaw chuck and is positioned on the central axis of the three-jaw chuck, and when the lower end of the pressure-bearing pipe assembly is clamped and fixed on the three-jaw chuck, the upper end of the pressure-bearing pipe assembly props against the bottom surface of the propping block, and the three-jaw chuck rotates through the driving device.

3. The pressure tube assembly electron beam welding fixture of claim 2, wherein: the support column comprises an upper column body and a lower column body, wherein the upper column body is inserted into the lower column body from top to bottom and can not rotate, and a linear driving device for driving the upper column body to vertically lift relative to the lower column body is arranged on the lower column body.

4. The pressure tube assembly electron beam welding fixture of claim 2, wherein: and a rubber layer is arranged on the bottom surface of the propping block.

5. The pressure tube assembly electron beam welding fixture of claim 1, wherein: still include the support frame, clamping device and drive arrangement all detachable install on the support frame, be equipped with a plurality of stationary blades on the bottom surface of support frame, offered the mounting hole on the stationary blade.