CN210334958U

CN210334958U - Positioning fixture before vacuum welding

Info

Publication number: CN210334958U
Application number: CN201921277925.5U
Authority: CN
Inventors: 潘敏松; 梅丽娜; 尹良良
Original assignee: Ningbo Jintai Rubber Plastics Industry Co ltd
Current assignee: Ningbo Jintai Rubber Plastics Industry Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-17
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses a positioning clamp before vacuum welding, which comprises an installation seat and a positioning device, the positioning device is fixedly arranged on the mounting seat and comprises an inserting pipe, a sheath and a wrench, one end of the sheath is inserted on the insertion pipe, the other end of the sheath is inserted on the wrench, and the wrench is connected with the insertion pipe through screw threads, the structure is simple, the installation is convenient, simultaneously, the welding precision is not high and the welding efficiency is not reduced due to instability in the welding process, the spanner rotates clockwise, the sheath and the capillary can be riveted tightly without deformation and friction scratch to the sheath and the capillary, the capillary component can be taken out by the spanner in the anticlockwise direction, which is convenient and simple, meanwhile, the welding fixture can be conveniently and quickly positioned, and the problems of low welding accuracy and low welding efficiency are avoided.

Description

Positioning fixture before vacuum welding

Technical Field

The utility model belongs to a vacuum welding anchor clamps, especially a positioning fixture before vacuum welding.

Background

In the general fusion welding process, if the atmosphere is directly contacted with a high-temperature molten pool, oxygen in the atmosphere can oxidize metals and various alloy elements, nitrogen, water vapor and the like in the atmosphere enter the molten pool, and defects such as pores, slag inclusion, cracks and the like are formed in a welding seam in the subsequent cooling process, so that the quality and the performance of the welding seam are deteriorated.

The vacuum welding process can avoid oxidation, the manufacturing cost is easier to control, the size of a weldment cannot be guaranteed, the assembly precision and the efficiency are guaranteed, welding deformation is prevented, a welding fixture is often needed, the welding fixture is installed, the welding fixture and a welding product need to be positioned in advance, and unstable welding accuracy and welding efficiency are prevented from being reduced due to the fact that welding is not conducted when welding is conducted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned prior art and providing a simple structure, simple to operate avoids appearing an unstable before vacuum welding positioning fixture who leads to the welding accuracy not high and welding efficiency's reduction simultaneously in welding process.

In order to realize the purpose, the utility model discloses a positioning fixture before vacuum welding, including mount pad and positioner, positioner is fixed to be set up on the mount pad, positioner is including pegging graft pipe, sheath and spanner, sheath one end is pegged graft on pegging graft the pipe, the other end of sheath is pegged graft on the spanner, and spanner and the pipe threaded connection that pegs graft.

Furthermore, be equipped with fixed orifices and first screw hole on the mount pad, the mount pad is fixed through the fixed orifices, grafting pipe one end is equipped with the first screw thread with first screw hole matched with, the grafting pipe is fixed at the mount pad through the screw of mutually supporting of first screw hole and first screw thread.

Further, the spanner inboard is equipped with the second screw hole, the other end of grafting pipe is equipped with the second screw thread with second screw hole matched with, the grafting pipe is mutually supported and spanner screwed connection through second screw hole and second screw thread.

Further, the sheath is formed by four sheath pieces in an integrated mode, wherein a positioning and tightening hole is formed in one end face of the sheath formed by the four sheath pieces in the integrated mode.

Furthermore, a clearance groove is formed between every two of one ends of the four sheath pieces, a groove is formed in the middle end of each sheath piece, and the opening positions of the grooves and the opening positions of the clearance grooves are arranged in opposite directions.

Furthermore, the upper end of each sheath piece of the sheath is also provided with a groove, the upper end part and the lower end part of each sheath piece are both in a conical table structure, the lower end part of each groove is inserted into the corresponding insertion pipe, and the upper end part of each groove is inserted into the corresponding wrench.

The utility model provides a pair of positioning fixture before vacuum welding, its beneficial effect is:

1. the utility model provides a positioning fixture before vacuum welding, its simple structure, simple to operate avoids appearing the unstability simultaneously in welding process and leads to the reduction of welding accuracy height and welding efficiency.

2. It is rotatory through spanner clockwise, can rivet sheath and capillary tightly, and can not produce deformation and friction to sheath and capillary and scrape and draw, and the spanner counter-clockwise takes out capillary subassembly, and convenient simple like this also is convenient for quick location to welding jig simultaneously, avoids appearing the problem of the not high and welding efficiency's of welding accuracy reduction.

3. The sheath is by four sheath piece integrated into one piece, and wherein, be equipped with the location on four sheath piece integrated into one piece's the sheath terminal surface and step up the hole, four sheath pieces's one end is equipped with the clearance groove between two liang, and every sheath piece's middle-end still is equipped with the fluting, the fluting is opposite direction setting with the open position of clearance groove, the upper end of every sheath piece of sheath still is equipped with the recess, and the upper end portion and the lower tip that are located the recess all are the toper platform structure, and wherein the lower tip of recess is pegged graft in the grafting pipe, and the upper end portion is pegged graft in the spanner, is convenient for like this to the tight location of clamp of capillary, avoids the capillary not hard up, leads to welding accuracy not.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

as shown in fig. 1-2, the positioning device 2 of the present invention comprises an installation base 1 and a positioning device 2, wherein the positioning device 2 is fixedly disposed on the installation base 1, the positioning device 2 comprises an insertion tube 3, a sheath 4 and a wrench 5, one end of the sheath 4 is inserted on the insertion tube 3, the other end of the sheath 4 is inserted on the wrench 5, the wrench 5 is in threaded connection with the insertion tube 3, the installation base 1 is provided with a fixing hole 6 and a first threaded hole 7, the installation base 1 is fixed through the fixing hole 6, one end of the insertion tube 3 is provided with a first threaded hole 8 matched with the first threaded hole 7, the insertion tube 3 is fixed on the installation base 1 through the mutually matched screw of the first threaded hole 7 and the first threaded hole 8, the inner side of the wrench 5 is provided with a second threaded hole 9, the other end of the insertion tube 3 is provided with a second threaded hole 10 matched with the second threaded hole 9, the plug pipe 3 is mutually matched with the wrench 5 through a second threaded hole 9 and a second thread 10 and is in threaded connection with the wrench 5, the sheath 4 is formed by four sheath pieces 11 in one piece, wherein a positioning tightening hole 12 is formed in one end face of the sheath 4 formed by four sheath pieces 11 in one piece, a clearance groove 12 is formed between every two ends of one end of each of the four sheath pieces 11, a notch 13 is further formed in the middle end of each sheath piece 11, the notch 13 and the opening position of the clearance groove 12 are arranged in opposite directions, a groove 14 is further formed in the upper end of each sheath piece 11 of the sheath 4, the upper end and the lower end of each groove 14 are in a conical table structure, the lower end of each groove 14 is plugged into the plug pipe 3, and the upper end is plugged into the wrench 5.

The positioning fixture before vacuum welding provided by the embodiment has simple structure and convenient installation, avoids the problems of low welding accuracy and low welding efficiency caused by instability in the welding process, can rivet the sheath 4 and the capillary tightly by rotating the wrench 5 clockwise, does not deform and rub and scratch the sheath 4 and the capillary, takes out the capillary component by the wrench 5 anticlockwise, is convenient and simple, is convenient and quick to position the welding fixture, avoids the problems of low welding accuracy and low welding efficiency, the sheath 4 is integrally formed by four sheath sheets 11, wherein one end face of the sheath 4 integrally formed by the four sheath sheets 11 is provided with a positioning and tightening hole 12, one end of each of the four sheath sheets 11 is provided with a clearance groove, and the middle end of each sheath sheet 11 is also provided with a notch 13, the open slot 13 and the open position of the clearance slot are arranged in opposite directions, the upper end of each sheath piece 11 of the sheath 4 is also provided with a groove 14, the upper end part and the lower end part of each groove 14 are both in a conical table structure, the lower end part of each groove 14 is inserted into the insertion tube 3, and the upper end part is inserted into the wrench 5, so that the capillary tube is conveniently clamped and positioned, and the problem that the welding accuracy is low and the welding efficiency is reduced due to the fact that the capillary tube is loosened is avoided.

During operation, mount pad 1 is fixed through fixed orifices 6, 3 one ends of grafting pipe are equipped with the first screw thread 8 with 8 hole 7 matched with of first screw thread, grafting pipe 3 is fixed at mount pad 1 through the spiral of mutually supporting of 8 hole 7 of first screw threads and 8, then 5 anticlockwise rotations of earlier spanner, make its sheath 4 not hard up, then put into sheath 4 with the capillary, then 5 clockwise rotations of spanner, can rivet sheath 4 and capillary tightly, then carry out vacuum welding, accomplish the back, 5 anticlockwise take out capillary subassembly of spanner.

Claims

1. The utility model provides a positioning fixture before vacuum welding which characterized in that: the positioning device is fixedly arranged on the mounting seat and comprises an inserting pipe, a sheath and a wrench, wherein one end of the sheath is inserted into the inserting pipe, the other end of the sheath is inserted into the wrench, and the wrench is in threaded connection with the inserting pipe.

2. The pre-vacuum welding positioning fixture of claim 1, wherein: the mounting seat is provided with a fixing hole and a first threaded hole, the mounting seat is fixed through the fixing hole, one end of the insertion pipe is provided with a first thread matched with the first threaded hole, and the insertion pipe is fixed on the mounting seat through the mutually matched screw of the first threaded hole and the first thread.

3. The pre-vacuum welding positioning fixture of claim 1, wherein: the spanner inboard is equipped with the second screw hole, the other end of grafting pipe is equipped with the second screw thread with second screw hole matched with, the grafting pipe is mutually supported and spanner screwed connection through second screw hole and second screw thread.

4. The pre-vacuum welding positioning fixture of claim 1, wherein: the sheath is by four sheath pieces integrated into one piece, wherein, is equipped with the location on four sheath piece integrated into one piece's the sheath one end face and steps up the hole.

5. The pre-vacuum welding positioning fixture of claim 4, wherein: and a clearance groove is formed between every two of one ends of the four sheath pieces, a slot is also formed in the middle end of each sheath piece, and the slots and the opening positions of the clearance grooves are arranged in opposite directions.

6. The pre-vacuum welding positioning fixture of claim 5, wherein: the upper end of each sheath piece of the sheath is also provided with a groove, the upper end part and the lower end part of each sheath piece are both in a conical table structure, the lower end part of each groove is inserted into the corresponding insertion pipe, and the upper end part of each groove is inserted into the corresponding wrench.