CN220636749U

CN220636749U - Stop valve welding system

Info

Publication number: CN220636749U
Application number: CN202322262613.XU
Authority: CN
Inventors: 潘国军; 孔雄伟; 明亮
Original assignee: Sichuan Hongxin Refrigeration Technology Co ltd
Current assignee: Sichuan Hongxin Refrigeration Technology Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-03-22
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses a stop valve welding system, which comprises a rotary workbench, welding equipment arranged on one side of the workbench and matched with a corresponding welding station, and an assembly station arranged on the workbench, wherein the workbench further comprises: the device comprises a detection station, at least two compressed air cooling stations and a material taking station; wherein, all be provided with matched with welding frock on each station, all be provided with independent cooling module on each welding frock. The utility model provides a stop valve welding system, which is characterized in that two air cooling stations are arranged behind adjacent welding stations, so that compressed air can be used for blowing air to rapidly cool an upper copper pipe to room temperature, at the moment, a cooling module continuously takes away heat of the copper pipe through cold water, the temperature of a valve body is ensured to be controlled within a technical requirement allowable range, the valve body flowing to a material taking station is enabled to reach normal temperature, the safety is better, meanwhile, the production continuity is considered, the stay time of the welding stations is controlled, and the yield is improved.

Description

Stop valve welding system

Technical Field

The utility model relates to the technical field of valve body preparation. More particularly, the present utility model relates to a shut-off valve welding system.

Background

The stop valve is an important part of the split air conditioner, and plays roles of connecting an outdoor unit with an indoor unit, closing or opening a refrigerant inquiry path, vacuumizing or filling the refrigerant, a valve core in the valve body is sealed by a rubber sealing ring, if the sealing ring is damaged, the stop valve is leaked, if a cooling protection measure is not good during welding, the sealing ring is damaged at a high temperature, and therefore cooling protection is usually required during welding (generally, the temperature does not exceed 120C during welding of the valve body).

In practical continuous-flow shut-off valve welding systems, there are usually a plurality of welding stations and a plurality of assembly works, but in this way, in order to ensure that the quenching temperature of the shut-off valve does not exceed 120C during welding, the shut-off valve is immersed in water or protected by spraying water during the welding process. However, in the welding process of immersing in water or protecting water spraying, because the cooling medium is water, the risk that the quality of products is affected by the cooling water entering the valve body (because water enters an air conditioner pipeline to freeze to cause pipeline blockage) exists, and after the welding in the mode is adopted, the blowing treatment or the drying treatment is generally required to ensure that the quality of the factory stop valve meets the requirement, so that the processing process of the stop valve is complicated, and the labor cost and the production cost are high; in addition, after the welding is finished by taking away heat through water cooling, the cooling effect of the valve body cannot meet the requirement, so that operators are easy to scald due to the fact that the valve body is provided with high temperature during material taking, and the water spraying cooling is performed in a long-time stay mode, so that the processing time of each station is too long, and the efficiency is affected.

Disclosure of Invention

It is an object of the present utility model to address the above problems and/or disadvantages and to provide advantages which will be described below.

To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a stop valve welding system including a rotary table, a welding apparatus provided at one side of the table to be matched with a corresponding welding station, an assembling station provided on the table, the table further including:

the detection station is arranged between the assembly station and the welding station;

at least two compressed air cooling stations disposed on the downstream side of the welding station;

the material taking station is arranged between the cooling station and the assembling station;

wherein, all be provided with matched with welding frock on each station, all be provided with independent cooling module on each welding frock.

Preferably, the welding fixture is configured to include:

a clamping assembly which is opened and closed in space to isolate the valve body part from the outside;

a fixed assembly spatially mated with the clamping assembly to support and define the valve body;

the clamping assembly is arranged at a welding position of the valve body and the copper pipe, and is used for fixing the cooling module through the arc-shaped mounting groove, and the cooling module is a semicircular hollow cooling block which is oppositely arranged;

the internal cavity of each cooling block is communicated with an external circulating cooling unit through a water inlet pipeline and a water outlet pipeline which are matched with each other;

the cooling block is configured to be prepared from red copper.

Preferably, the clamping assembly is configured to include:

a power mechanism for providing a clamping force;

fixing pieces which are arranged oppositely in space and are connected with the power output ends of the power mechanism;

the fire blocking cover is arranged at the upper end of the fixing piece and is used for blocking the valve body in space;

wherein the cooling block is disposed on the firestop cover.

Preferably, the fixing assembly is configured to include:

the mounting seat is arranged on the clamping assembly;

the fixed sleeve is arranged on the mounting seat and used for preventing the stop valve from being reversely assembled;

wherein, the mounting seat is provided with a fixing pin matched with the valve body mounting hole;

the fixed sleeve is provided with a notch matched with the extending end of the valve body.

Preferably, the mounting seat is provided with a supporting piece in the extending direction of the copper pipe;

wherein, the support piece is provided with a clamping groove at the position contacted with the copper pipe.

Preferably, the welding fixture is arranged on the workbench through a mounting plate.

Preferably, the method further comprises:

an air cooling unit matched with the cooling station;

the detection mechanism is matched with the detection station;

and the controller is in communication connection with the workbench, the welding equipment, the air cooling unit and the detection mechanism.

Preferably, a water inlet pipeline and a water outlet pipeline of the cooling block and a connecting pipeline or a gas pipeline of the power mechanism on the clamping assembly are arranged at the center of the workbench, and the multichannel gas-liquid rotary joint is connected with an external gas source and a water pump.

The utility model at least comprises the following beneficial effects: the utility model adopts a rotary multi-station design, so that the utility model is suitable for a running water production mode, further, two air cooling stations are arranged behind the adjacent welding stations, the upper copper pipe can be immediately cooled down to the room temperature by compressed air blowing, at the moment, the cooling module continuously takes away the heat of the copper pipe through cold water, the temperature of the valve body is ensured to be controlled within a technical requirement allowable range, the valve body flowing to the material taking station is further enabled to reach the normal temperature, the safety is better, meanwhile, the production continuity is considered, the residence time of the welding stations is controlled, and the yield is improved;

in addition, the independent cooling module is designed, so that the cooling medium is not in contact with the valve body, namely, the product is not in direct contact with cooling water in the whole welding process, the cooling protection function is achieved, the risk of water inflow in the product pipe is guaranteed, drying or blowing treatment is not needed in the later stage, and the production cost and the labor cost are effectively controlled by the reduction process.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of a shut-off valve welding system according to the present utility model;

FIG. 2 is a schematic diagram of a shut-off valve welding system in a closed configuration according to one embodiment of the present utility model;

FIG. 3 is a schematic view of FIG. 2 with half of the clamping unit removed;

FIG. 4 is a schematic view showing a structure of a cut-off valve welding system in an opened state according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an explosive construction of a shut-off valve;

fig. 6 is a schematic view of the cut-off valve after welding is completed.

Detailed Description

The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that, in the description of the present utility model, the orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, which are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, may be a detachable connection, or may be integrally connected, may be mechanically connected, may be electrically connected, may be directly connected, may be indirectly connected through an intermediate medium, may be communication between two members, and may be understood in a specific manner by those skilled in the art.

Furthermore, in the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first and second features, or an indirect contact of the first and second features through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

After welding, the upper copper pipe is immediately cooled to room temperature by compressed air blowing, and at the moment, the cooling block (red copper) continuously takes away the heat of the copper pipe through cold water, so that the temperature of the valve body is ensured to be controlled within the technical requirement allowable range.

Example 1

The stop valve welding system has a structure as shown in fig. 1, and comprises a rotary workbench 1, welding equipment (not shown) arranged on one side of the workbench and matched with a corresponding welding station 2, and an assembling station 3 arranged on the workbench, wherein the workbench further comprises:

the detection station 4 is arranged between the assembly station and the welding station and is used for facilitating a detection mechanism to detect whether a product to be assembled is on the tool or not, further judging whether the welding operation needs to be started at the next station, and ensuring the safety and the production continuity;

at least two compressed air cooling stations 5 arranged on the downstream side of the welding station, wherein the temperature of the welding position of the valve body is taken away rapidly through two-stage external air cooling and the whole internal cooling of the cooling module;

a material taking station 6 arranged between the cooling station and the assembling station;

wherein, all be provided with matched with welding frock on each station, all be provided with independent cooling module 7 on each welding frock, this scheme adopts independent cooling module design for coolant does not contact with the valve body, promptly at whole welding process in the product with cooling water direct contact and reach the cooling protect function, guarantee the intraductal risk of no intaking of product, so later stage need not to be in adopting stoving or blowing treatment, reduction technology in order to effectively control manufacturing cost and cost of labor.

Working principle: in practical application, the welding system of this scheme can realize loading, detection, welding, cooling, get full chain closed loop operation of material, and each station is in space phase-match rather than operation flow, realize automated operation, its concrete operation flow is as follows, operating personnel is first on the assembly station with the valve body of waiting to weld, copper pipe is fixed on the welding frock of assembly station, the workstation is rotatory predetermined angle, carry the stop valve that accomplishes the assembly to the detection station, detect whether have the copper pipe on the welding frock of detection station through detection mechanism, if detect, it can weld to regard as, the workstation is rotatory a predetermined angle again and carries the product of waiting to weld to carry out the welding operation on the welding station, after the welding is accomplished the workstation is rotatory a predetermined angle again and carries the product after the welding to first cooling station and carries out preliminary cooling, the workstation is rotatory a predetermined angle and carries the product after the preliminary cooling to the second cooling station and carries to normal atmospheric temperature, the workstation is rotatory a predetermined angle and carries the product to the welding station, the welding frock is in the open state, operating personnel is in the welding station is rotated a predetermined angle again and is got out to take out the welding production of material frock and is flowed from the workstation and is in a predetermined angle after the welding station is in the welding state is got.

Example 2

The structure of the stop valve welding fixture is shown in fig. 2-4, and the stop valve welding fixture comprises a clamping assembly 9 which is open and close in space so as to isolate the valve body 8 from the outside;

a fixed assembly 10 spatially mated with the clamping assembly to support and define the valve body;

the clamping assembly is arranged at a welding position of the valve body and the copper pipe 11 and is used for fixing a cooling module through an arc-shaped mounting groove 12, and the cooling module is a semicircular hollow cooling block which is oppositely arranged;

the internal cavity of each cooling block is communicated with an external circulating cooling unit (not shown) through a matched water inlet pipeline 13 and a water outlet pipeline 14 respectively;

the cooling block is configured to be prepared from red copper, is limited by the material, has good physical structural stability, cannot be damaged due to spark generated by welding, and can be used for rapidly taking away heat generated by welding positions in a concentrated manner by means of excellent heat conductivity of the material, so that the welding temperature is ensured to be in a controllable range, meanwhile, a product is not in direct contact with cooling water in the whole welding process, a cooling protection function is achieved, the risk of water inflow in a product pipe is ensured, and the product quality is ensured to meet requirements.

Working principle: in practical application, the stop valve to be welded is shown in fig. 5, the valve body to be assembled is firstly placed on the fixing assembly, the copper pipe is spliced on the connecting end of the valve body, then the clamping unit is controlled to be in a clamping shape, the valve body and the copper pipe are clamped, cooling water is introduced into the cooling block through the water inlet pipeline and the water outlet pipeline of the external circulating cooling unit, the welding mechanism performs welding on the joint part of the valve body and the copper pipe, and meanwhile, heat transferred from the welding position to the valve body is taken away under the circulating action of the cooling water, so that the valve body is not influenced in the welding process, and a product after the welding is finished is shown in fig. 6.

Example 3

Embodiment 3, which is a preferred embodiment of the present utility model, has a specific structure as shown in fig. 2 to 4, and discloses the following modifications based on embodiment 2:

the clamping assembly is configured to include:

a power mechanism 15 for providing a clamping force;

a fixing member 16 which is arranged in a space opposite to each other and is connected with each power output end of the power mechanism;

a fire shield 17 arranged at the upper end of the fixing member and shielding the valve body in space;

wherein the cooling block is disposed on the firestop cover.

Working principle: this scheme provides power through power unit (cylinder) for two mounting can drive the fire shield and carry out reciprocating motion in the space, and shelter from or expose the valve body part in the motion process, with welding or assembly part, take out the process of part and cooperate, fire shield is closed when the welding promptly, blocks that the flame toasts the valve body and burns out valve body and plastic nut, lets in cold water in the cooling block (red copper) simultaneously and takes away the heat of copper pipe downward transmission, avoids the heat to the valve body transmission through the copper pipe.

Example 4

Embodiment 4, which is a preferred embodiment of the present utility model, has a specific structure as shown in fig. 3 to 5, and discloses the following modifications based on embodiment 2:

the securing assembly is configured to include:

a mounting block 18 provided on the clamping assembly;

a fixed sleeve 19 arranged on the mounting seat and used for preventing the stop valve from being reversely assembled;

wherein, the mounting seat is provided with a fixing pin 21 matched with the valve body mounting hole 20, and the fixing pin is used for preventing the valve body from generating angle deviation;

the fixed sleeve is provided with a notch (not shown) matched with the extending end of the valve body, in general, the stop valve in the scheme is provided with two connecting ports at positions deviating from a welding position, and each port is provided with a matched plastic nut;

the mounting seat is provided with a support piece 22 in the extending direction of the copper pipe;

the supporting piece is provided with a clamping groove 23 at a position contacted with the copper pipe, the copper pipe is supported in space through the clamping groove, and stability of the copper pipe after being connected and matched with the valve body is guaranteed.

Working principle: in this scheme, place the valve body from top to bottom in fixed cover earlier to carry out uniqueness discernment through breach on it to its place position, angle, when one side connecting port just in time blocked into the draw-in groove, the position of valve body, angle have been limited, make the free end of fixed pin just in time can insert in the mounting hole of valve body, accomplish the fixing to the valve body, through this kind of fixed mode, can effectively reduce the valve body and produce the skew of angle and position in the space.

Example 5

Embodiment 5 is shown in fig. 1 as a preferred example of the present utility model, and the following modifications are disclosed on the basis of embodiment 1:

further comprises:

an air cooling unit (not shown) matched with the cooling station and configured to comprise an air compressor and an air pipe matched with the air compressor, wherein the air pipe is provided with a nozzle at a position matched with the cooling station, and the nozzle can be fixed on an external supporting structure (such as a supporting upright post) through a holder or other structures with adjustable angles and positions;

the detection mechanism (not shown) is matched with the detection station, can be set into a camera or a sensor according to the requirement, and has the function of detecting whether a copper pipe to be assembled is arranged on the tool, and only when the copper pipe is detected, the controller can control the welding equipment to perform welding operation at a preset welding position, and the welding duration of the welding equipment is also controlled by the controller;

the controller (not shown) is in communication connection with the workbench, the welding equipment, the air cooling unit and the detection mechanism, and is used for controlling the workbench to rotate for a fixed time length and a fixed angle, so that one welding tool is spatially matched with a corresponding station after each rotation, and the corresponding operation is completed on the station;

the welding tools are arranged on the workbench through the mounting plate 24, and each welding tool is fixed on the workbench through the mounting plate, so that the welding tools can be replaced after the later-stage tools are in a problem.

Example 5

the center of the workbench is provided with a water inlet pipeline and a water outlet pipeline of the cooling block, and a connecting pipeline or a gas transmission pipeline of a power mechanism on the clamping assembly, and the multichannel gas-liquid rotary joint is connected with an external gas source and a water pump.

Working principle: in practical application, the compressed air of the power mechanism on each welding tool, the water inlet pipeline and the water outlet pipeline of the cooling block are connected with the air source and the water pump at the lower part of the equipment through the multi-channel gas-liquid rotary joint in the middle of the workbench. When the welding fixture works, the compressed air pipeline and the water inlet and outlet pipeline rotate along with the welding fixture, so that interference and winding cannot be generated. It should be noted that, the multi-channel gas-liquid rotary joint is also referred to as a gas-liquid integrated hybrid slip ring, and the structure and the connection relation with other devices are the prior art, so they will not be described here.

The above embodiments are merely illustrative of a preferred embodiment, but are not limited thereto. In practicing the present utility model, appropriate substitutions and/or modifications may be made according to the needs of the user.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. Applications, modifications and variations of the present utility model will be readily apparent to those skilled in the art.

Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The utility model provides a stop valve welding system, includes rotary type workstation, sets up in workstation one side in order to correspond welding station matched with welding equipment, sets up the assembly station on the workstation, its characterized in that, the workstation still includes:

2. The shut-off valve welding system of claim 1, wherein the welding fixture is configured to comprise:

the cooling block is configured to be prepared from red copper.

3. The shut-off valve welding system of claim 2, wherein the clamp assembly is configured to comprise:

a power mechanism for providing a clamping force;

wherein the cooling block is disposed on the firestop cover.

4. The shut-off valve welding system of claim 2, wherein the securing assembly is configured to comprise:

the mounting seat is arranged on the clamping assembly;

5. The shut-off valve welding system of claim 4, wherein said mount is provided with a support in the extension direction of the copper tube;

6. The shut-off valve welding system of claim 2, wherein the welding fixture is disposed on the work table by a mounting plate.

7. The shut-off valve welding system of claim 1, further comprising:

an air cooling unit matched with the cooling station;

the detection mechanism is matched with the detection station;

8. The stop valve welding system of claim 1, wherein a multi-channel gas-liquid rotary joint for connecting a water inlet pipeline and a water outlet pipeline of the cooling block and a connecting cable or a gas pipeline of a power mechanism on the clamping assembly with an external gas source and a water pump is arranged at the center of the workbench.