CN114260688A

CN114260688A - Vacuum elbow box

Info

Publication number: CN114260688A
Application number: CN202111517238.8A
Authority: CN
Inventors: 龙晓斌; 龙晓明; 龙川
Original assignee: Oms Machinery Co Ltd
Current assignee: Oms Machinery Co Ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-01

Abstract

The invention discloses a vacuum elbow box which comprises a box body, wherein a containing cavity is arranged in the box body, a sliding block capable of sliding up and down in the containing cavity is arranged in the containing cavity, an arc-shaped adsorption port capable of being attached to a U-shaped heat exchange pipe elbow is arranged at the lower end of the sliding block, an air suction port used for being connected with air suction and blowing equipment is arranged on the box body, and air channels communicated with the adsorption port and the air suction port are arranged in the sliding block and the box body. The vacuum elbow sucking device has the advantages that the vacuum elbow sucking device sucks the elbow without damaging the elbow, the sucking and releasing speeds are high, and the working efficiency is high. Because of adopting negative pressure absorption and blowing release, the absorption and the release are faster, the suction is firmer and more reliable, and the cost is lower.

Description

Vacuum elbow box

Technical Field

The invention relates to the technical field of heat exchanger manufacturing equipment, in particular to a vacuum elbow box.

Background

The bend needs to be inserted between two heat exchange tubes during the manufacturing process of the heat exchanger, the process needs to clamp the bent part of the bend, and then the two legs of the bend are respectively inserted into the two heat exchange tubes.

In the prior art, the work is usually completed manually, and the work speed is low, the efficiency is low, the cost is high, and the quality is low.

In the prior art, there are also some elbow clamping mechanisms such as the patent with publication number CN 109702721B, which use a clamping jaw cylinder to drive two clamping jaws to open and close, and the two clamping jaws are both provided with arc-shaped grooves for clamping elbows. However, the clamping mechanism has the following problems that 1) the precision requirement is high, and the clamping is easy to deviate and damage; 2) the stroke and the size are large, the occupied space is large, and more clamping jaws are difficult to intensively arrange; 3) slow action, slow working speed, low efficiency and the like.

The present invention has been made based on such a situation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the vacuum elbow box which has the advantages of simple structure, low cost, high working speed, high efficiency and small volume, and the elbow can not be damaged by the vacuum elbow box.

The invention is realized by the following technical scheme:

in order to solve the technical problem, the invention provides a vacuum elbow box which comprises a box body, wherein a containing cavity is arranged in the box body, a sliding block capable of sliding up and down is arranged in the containing cavity, an arc-shaped adsorption port capable of being attached to a U-shaped heat exchange pipe elbow is arranged at the lower end of the sliding block, an air suction port used for being connected with air suction and blowing equipment is arranged on the box body, and air channels communicated with the adsorption port and the air suction port are arranged in the sliding block and the box body.

In order to further solve the technical problem to be solved by the invention, in the vacuum elbow box provided by the invention, the side wall of the sliding block is tightly attached to the side wall of the accommodating cavity.

In order to further solve the technical problem to be solved by the invention, a limit structure capable of limiting the up-and-down sliding distance of the sliding block is arranged between the sliding block and the box body in the vacuum elbow box provided by the invention.

In order to further solve the technical problem to be solved by the invention, in the vacuum elbow box provided by the invention, the limiting structure comprises a limiting column arranged in the accommodating cavity, a limiting hole in the vertical direction is arranged in the middle of the sliding block, and the limiting column is inserted into the limiting hole.

In order to further solve the technical problem to be solved by the invention, the invention provides the vacuum elbow box, wherein the lower end opening of the accommodating cavity is sized to allow the bent part of the U-shaped heat exchange tube elbow to pass through and limit the welding ring on the U-shaped heat exchange tube elbow to pass through.

In order to further solve the technical problem to be solved by the invention, in the vacuum elbow box provided by the invention, the gas channel comprises a first channel arranged in the box body and a second channel arranged in the sliding block, an impact cavity is arranged at the joint of the first channel and the second channel, an opening at the lower end of the first channel and an opening at the upper end of the second channel are staggered, and the impact cavity is arranged at the upper end of the sliding block.

In order to further solve the technical problem to be solved by the invention, in the vacuum elbow box provided by the invention, the vacuum elbow box further comprises a lifting drive for driving the box body to lift, and the box body is fixedly connected to the output end of the lifting drive.

Compared with the prior art, the invention has the following advantages:

the vacuum elbow sucking device has the advantages that the vacuum elbow sucking device sucks the elbow without damaging the elbow, the sucking and releasing speeds are high, and the working efficiency is high. Because of adopting negative pressure absorption and blowing release, the absorption and the release are faster, the suction is firmer and more reliable, and the cost is lower. More specifically, when the elbow is grabbed, vacuum suction is started, the sliding block is retracted into the box body, the box body is close to and enables an adsorption port at the lower end of the sliding block to be attached to the elbow, and the elbow is adsorbed and taken away under the action of negative pressure vacuum; when the elbow is inserted, the elbow box inserts the elbow into the heat exchange tube, vacuum suction is closed at the moment, air blowing is started, the lower end of the sliding block extends out of the box body, the elbow is firmly pressed in the heat exchange tube to be fixed, then the elbow box is withdrawn, the sliding block is taken away when the box body is completely lifted and separated, the sliding block is separated from the elbow, and the elbow is left in the heat exchange tube, so that the action of inserting the elbow is completed. Simple action and high speed.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the present invention in use.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

The vacuum elbow box shown in fig. 1 to 3 comprises a box body 1, wherein a containing cavity 11 is arranged in the box body 1, a sliding block 2 capable of sliding up and down is arranged in the containing cavity 11, an arc-shaped adsorption port 21 capable of being attached to a U-shaped heat exchange tube elbow is arranged at the lower end of the sliding block 2, an air suction port 12 used for connecting air suction and blowing equipment is arranged on the box body 1, and an air channel 13 communicating the adsorption port 21 with the air suction port 12 is arranged in the sliding block 2 and the box body 1.

The vacuum elbow sucking device has the advantages that the vacuum elbow sucking device sucks the elbow without damaging the elbow, the sucking and releasing speeds are high, and the working efficiency is high. Because of adopting negative pressure absorption and blowing release, the absorption and the release are faster, the suction is firmer and more reliable, and the cost is lower.

More specifically, when the elbow is grabbed, vacuum suction is started, the sliding block 2 is retracted into the box body 1, the box body 1 is close to and enables the adsorption port 21 at the lower end of the sliding block 2 to be attached to the elbow, and the elbow is adsorbed and taken away under the action of negative pressure vacuum; when the elbow is inserted, the elbow box inserts the elbow into the heat exchange tube, vacuum suction is closed at the moment, air blowing is started, the lower end of the sliding block 2 extends out of the box body 1, the elbow is firmly pressed in the heat exchange tube and does not move, (the sliding block 2 can tightly pull the elbow downwards under the pushing of air during air blowing) and then the elbow box retracts, when the box body 1 is completely lifted and separated, the sliding block 2 is taken away together, the sliding block 2 is separated from the elbow, the elbow is left in the heat exchange tube, and therefore the elbow inserting action is completed. The action is simple, the speed is high, the stroke is short, the volume is small, and the compactness is improved.

As shown in fig. 1 to 3, the cartridge 1 preferably includes a detachable upper half and a detachable lower half, so as to facilitate the manufacturing process and reduce the cost.

In a more specific embodiment of the present invention, the side wall of the slider 2 and the side wall of the accommodating cavity 11 are tightly attached to each other, so as to avoid air leakage and ensure reliability during vacuum suction.

In a more specific embodiment of the invention, a limiting structure capable of limiting the up-and-down sliding distance of the slide block 2 is arranged between the slide block 2 and the box body 1, so as to ensure that the slide block 2 slides in a limited range and cannot be separated. When the box body 1 is lifted and retracted, the slide block 2 can be pulled out together through the limiting structure.

In a more specific embodiment of the present invention, the limiting structure includes a limiting post 14 disposed in the accommodating cavity 11, a limiting hole 22 (i.e., a strip-shaped hole in the vertical direction) is disposed in the middle of the sliding block 2 in the vertical direction, and the limiting post 14 is inserted into the limiting hole 22.

In a more specific embodiment of the invention, the lower opening of the receiving chamber 11 is dimensioned to allow the passage of the bent part of the U-shaped heat exchange tube bend and to limit the passage of the weld ring on the U-shaped heat exchange tube bend. That is, the lower opening of the containing cavity 11 keeps off the welding ring outside, and the whole elbow is prevented from being sucked into the containing cavity 11.

In a more specific embodiment of the present invention, the gas channel 13 comprises a first channel 131 disposed in the cartridge body 1 and a second channel 132 disposed in the slider 2, an impact chamber 133 is disposed at a junction of the first channel 131 and the second channel 132, an opening at a lower end of the first channel 131 and an opening at an upper end of the second channel 132 are staggered, and the impact chamber 133 is disposed at an upper end of the slider 2. The impingement cavity 133 facilitates a uniform flow of gas and facilitates a rapid pushing of the slide 2 down when blowing.

In a more specific embodiment of the present invention, the vacuum bend box further comprises a lifting drive 3 for driving the box body 1 to lift, and the box body 1 is fixedly connected to the output end of the lifting drive 3. The lifting drive 3 is preferably a pneumatic cylinder. The lifting drive 3 drives the box body 1 to lift so that the box body is close to the elbow and is sleeved on the bent part of the elbow.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A vacuum elbow box, characterized in that: it comprises a box body (1), and the box body (1) is provided with an accommodating cavity (11), and the accommodating cavity (11) is provided with a chamber (11) that can be moved up and down in it. A sliding slider (2), the lower end of the slider (2) is provided with an arc-shaped adsorption port (21) that can fit with the elbow of the U-shaped heat exchange tube, and the box (1) is provided with a connection for connecting A suction port (12) of the air suction and air blowing device, a gas channel (13) connecting the suction port (21) and the suction port (12) is provided in the slider (2) and in the box body (1) .

2 . The vacuum elbow box according to claim 1 , wherein the side wall of the sliding block ( 2 ) closely fits with the side wall of the accommodating cavity ( 11 ). 3 .

3. A vacuum elbow box according to claim 1, characterized in that a limiter capable of limiting the sliding distance of the slider (2) up and down is provided between the slider (2) and the box body (1) structure.

4. A vacuum elbow box according to claim 3, characterized in that: the limiting structure comprises a limiting column (14) arranged in the accommodating cavity (11), and the middle part of the sliding block (2) A limit hole (22) in the up-down direction is provided, and the limit post (14) is inserted into the limit hole (22).

5. A vacuum elbow box according to claim 1, characterized in that: the size of the lower end opening of the accommodating cavity (11) allows the curved part of the elbow of the U-shaped heat exchange tube to pass through and restricts the U-shaped heat exchange Weld rings on pipe elbows pass through.

6. A vacuum elbow box according to claim 1, characterized in that: the gas channel (13) comprises a first channel (131) provided in the box body (1) and a first channel (131) provided in the slider (2) ) inside the second channel (132), an impact cavity (133) is provided at the connection between the first channel (131) and the second channel (132), and the opening at the lower end of the first channel (131) and the second channel (132) The openings at the upper end of the channel (132) are staggered from each other, and the impact cavity (133) is provided at the upper end of the slider (2).

7. A vacuum elbow box according to any one of claims 1-6, characterized in that: the vacuum elbow box further comprises a lift drive (3) for driving the box body (1) to lift and lower, so The box body (1) is fixedly connected to the output end of the lift drive (3).