WO2024078617A1

WO2024078617A1 - Welding positioning device and welding positioning system

Info

Publication number: WO2024078617A1
Application number: PCT/CN2023/124521
Authority: WO
Inventors: 严镇; 任晓星; 耿军红; 马明军; 王付伟; 张永波
Original assignee: 苏州佳祺仕科技股份有限公司
Priority date: 2022-10-14
Filing date: 2023-10-13
Publication date: 2024-04-18
Also published as: CN115338588B; CN115338588A

Abstract

A welding positioning device and a welding positioning system. The welding positioning device comprises a floating mechanism (1), a driving device (2), a limiting plate (3) and at least one locking mechanism (4), wherein the locking mechanism (4) is in sliding connection with the floating mechanism (1); and the driving device (2) is in driving connection with the locking mechanism (4). By means of providing the floating mechanism (1), when the driving device (2) drives the floating mechanism (1) to drive a workpiece to be processed to move and to position said workpiece, the angle of said workpiece can be finely adjusted by means of the floating mechanism (1) in the process of pressing against said workpiece, so that said workpiece is tightly fitted to the limiting plate (3); thus, the stability of said workpiece can be effectively improved.

Description

Welding positioning device and welding positioning system

Technical Field

The present application relates to the technical field of workpiece welding positioning, and in particular to a welding positioning device and a welding positioning system.

Background technique

Currently, when welding a workpiece, the workpiece needs to be moved to a preset welding position and positioned before welding. For example, when welding a battery pack, the battery pack needs to be moved to a position that can be reached by the welding equipment before welding the battery pack.

In the prior art, when a battery pack needs to be welded, the electrodes of the battery pack need to be welded. Therefore, when the battery pack is fixed, the positioning of the battery pack is unstable due to the uneven welding surface of the battery pack. This causes shaking to easily occur during the welding process, reduces the welding accuracy, causes the overall welding quality to decline, and easily damages the surface of the battery pack.

Summary of the invention

In order to solve the above technical problems, the welding positioning device disclosed in the present application, through the setting of a floating mechanism, enables the driving device to drive the floating mechanism to move the workpiece to be processed and position the workpiece to be processed. The floating mechanism can be used to fine-tune the angle of the workpiece to be processed during the pressing process, so that the workpiece to be processed and the limit plate are tightly fitted, which can effectively improve the stability of the workpiece to be processed and avoid damage to the surface of the workpiece to be processed.

In order to achieve the above-mentioned invention object, the present application provides a welding positioning device, including a floating mechanism, a driving device, a limiting plate and at least one locking mechanism;

The locking mechanism is slidably connected to the floating mechanism, and the locking mechanism is used to lock or release the floating mechanism;

The side of the floating mechanism away from the locking mechanism is used to hold the workpiece to be processed;

The driving device is drivingly connected to the locking mechanism;

The driving device is used to drive the locking mechanism to drive the floating mechanism and the workpiece to be processed on the floating mechanism to move toward or away from the limiting plate, so that the floating mechanism floats and presses or releases the workpiece to be processed.

In some embodiments, the floating mechanism includes a fixed plate, a floating plate, and at least one connecting component;

The fixed plate and the floating plate are connected via the connecting assembly;

There is a gap between the floating plate and the fixed plate, and the floating plate can move relative to the connecting assembly within the range of the gap, so that the floating plate can move relative to the fixed plate;

The locking mechanism is slidably connected to the fixed plate and the floating plate, and the locking mechanism is used to lock or release the floating plate. Moving board.

In some embodiments, the connecting assembly includes a bolt and a first elastic member sleeved on the bolt;

One end of the bolt is fixedly connected to the fixed plate, and the other end passes through the gap and is connected to the floating plate;

One end of the first elastic member is located in the floating plate, and the other end passes through the gap and is located in the fixed plate;

The floating plate moves along the bolt within the gap range by compressing the first elastic member;

The floating plate is capable of tilting relative to the fixed plate based on an elastic movement direction of the first elastic member.

In some embodiments, further comprising a welding protection device;

The welding protection device is arranged on a side of the limiting plate close to the floating mechanism;

When the floating mechanism floats and presses the workpiece to be processed, the welding protection device contacts the workpiece to be processed.

In some embodiments, the welding protection device includes a welding accommodating mechanism, a sealing mechanism, an air filling pipe, and a dust removal pipe;

A welding cavity is formed in the welding accommodating mechanism;

A gas channel is formed between the welding accommodating mechanism and the sealing mechanism;

The gas channel is connected to the welding chamber;

One end of the inflation pipe is in communication with the gas channel, and the other end is in communication with the inflation mechanism;

One end of the dust removal pipeline is communicated with the welding chamber, and the other end is communicated with the dust removal structure.

In some embodiments, the welding accommodating mechanism includes a welding cylinder and a protective shell sleeved on the welding cylinder;

The welding cavity is located in the welding cylinder, and the welding cavity runs through both ends of the welding cylinder;

The sealing mechanism is sleeved on one end of the welding cylinder, and the gas channel is formed between the inner side wall of the sealing mechanism and the outer side wall of the welding cylinder;

A gas containing cavity is formed between one end of the protective shell close to the sealing mechanism and the outer side wall of the welding cylinder;

One end of the inflation pipe is communicated with the gas channel through the gas accommodating chamber.

In some embodiments, the locking mechanism includes a fixing pin, a driving member, a lifting member, and a second elastic member;

The driving member is drivingly connected to the lifting member;

The fixing pin is arranged on a side of the lifting member away from the driving member, and the fixing pin is slidably connected with the floating mechanism;

The driving member is used to drive the lifting member to drive the fixing pin to move toward or away from the floating mechanism, so as to lock or release the floating mechanism;

The second elastic member is sleeved on the fixing pin;

The fixing pin can move along the elastic movement direction of the second elastic member.

In some embodiments, a slot-type photoelectric switch is also included;

The slot-type photoelectric switch is used to detect the movement information of the fixing pin when the locking mechanism locks the floating mechanism.

In some embodiments, a pressure sensor, a displacement sensor, a substrate, and a bracket assembly are also included;

The locking mechanism, the pressure sensor, and the displacement sensor are all arranged on the substrate;

The base plate is slidably connected to the bracket assembly;

The driving device and the limiting plate are both fixedly connected to the bracket assembly;

The driving device is drivingly connected to the substrate;

The driving device can drive the substrate to move towards or away from the limiting plate, and the locking mechanism and the floating mechanism move synchronously with the substrate;

The pressure sensor is used to detect the pressure information between the workpiece to be processed and the limiting plate;

The displacement sensor is used to detect displacement information of the substrate.

The present application also provides a welding positioning system, including a welding positioning device and a control device, wherein the welding positioning device is the welding positioning device described above;

The control device is communicatively connected with the pressure sensor, displacement sensor, and slot-type photoelectric switch in the welding positioning device;

The control device is used to control the drive device and the drive member in the locking mechanism to output the driving force.

Implementing the embodiments of the present application has the following beneficial effects:

The welding positioning device of the present application is provided with a floating mechanism, so that when the driving device drives the floating mechanism to drive the workpiece to be processed to move and position the workpiece to be processed, the floating mechanism can be used to fine-tune the angle of the workpiece to be processed during the pressing process, so that the workpiece to be processed and the limit plate are tightly fitted, which can effectively improve the stability of the workpiece to be processed and avoid damage to the surface of the workpiece to be processed.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic structural diagram of a welding positioning device provided in an embodiment of the present application;

FIG2 is a schematic structural diagram of a floating mechanism provided in an embodiment of the present application;

FIG3 is a schematic cross-sectional structure diagram of a floating mechanism provided in an embodiment of the present application;

FIG4 is a schematic structural diagram of a locking mechanism provided in an embodiment of the present application;

FIG5 is a schematic structural diagram of a locking mechanism provided in an embodiment of the present application when locking a floating mechanism;

FIG6 is a partial cross-sectional structural schematic diagram of FIG5 ;

FIG7 is a partial structural schematic diagram of a welding positioning device provided in an embodiment of the present application;

FIG8 is a schematic structural diagram of a welding protection device provided in an embodiment of the present application;

FIG9 is a plan cross-sectional view of a welding protection device provided in an embodiment of the present application;

FIG10 is a sectional view of a three-dimensional structure of a welding protection device provided in an embodiment of the present application;

FIG11 is a schematic structural diagram of a sealing block in a welding protection device provided in an embodiment of the present application;

FIG12 is a schematic structural diagram of a welding cylinder in a welding protection device provided in an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a specific welding protection device provided in an embodiment of the present application.

Among them, the reference numerals in the figure correspond to: 1-floating mechanism, 101-fixed plate, 102-floating plate, 103-connecting assembly, 1031-bolt, 1032-first elastic member, 2-driving device, 3-limiting plate, 4-locking mechanism, 401-fixing pin, 402-driving member, 403-lifting member, 404-second elastic member, 405-slot-type photoelectric switch, 5-welding protection device, 6-welding accommodating mechanism, 601-welding cavity, 602-welding cylinder, 6021-through hole, 603-protection Protective shell, 6031-first channel, 6032-second channel, 604-gas containing chamber, 7-sealing mechanism, 701-sealing block, 7011-first annular ring, 7012-first connecting channel, 7013-second annular ring, 7014-second connecting channel, 702-first sealing ring, 703-second sealing ring, 8-inflation pipe, 9-dust removal pipe, 10-gas channel, 11-pressure sensor, 12-displacement sensor, 13-substrate, 14-bracket assembly, 15-workpiece to be processed.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings.

It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. In different implementation variations, the same components have the same reference numerals.

As shown in FIGS. 1-13 , the present application provides a welding positioning device, including a floating mechanism 1 , a driving device 2 , a limiting plate 3 , and at least one locking mechanism 4 ;

The locking mechanism 4 is slidably connected to the floating mechanism 1, and the locking mechanism 4 is used to lock or release the floating mechanism 1;

In one example, the locking mechanism 4 locks or releases the floating mechanism 1 during the sliding process relative to the floating mechanism 1 .

When the locking mechanism 4 locks the floating mechanism 1, the floating mechanism 1 is fixed relative to the locking mechanism 4. When the locking mechanism 4 releases the floating mechanism 1, at least a portion of the floating mechanism 1 can change in distance or angle relative to the locking mechanism 4, so as to facilitate the subsequent floating and pressing of the workpiece 15 to be processed.

The side of the floating mechanism 1 away from the locking mechanism 4 is used to hold the workpiece 15 to be processed;

In one example, when the workpiece 15 to be processed is placed on the floating mechanism 1 , the floating mechanism 1 is in a locked state.

The driving device 2 is drivingly connected to the locking mechanism 4;

The driving device 2 is used to drive the locking mechanism 4 to drive the floating mechanism 1 and the workpiece 15 to be processed on the floating mechanism 1 to move toward or away from the limiting plate 3, so that the floating mechanism 1 floats and presses or releases the workpiece 15 to be processed.

In one example, when the locking mechanism 4 locks the floating mechanism 1, the driving device 2 can drive the locking mechanism 4 to drive the floating mechanism 1 and the workpiece to be processed 15 on the floating mechanism 1 to move toward the direction close to the limiting plate 3. When the workpiece to be processed 15 and the limiting plate 3 reach a preset clamping condition, the locking mechanism 4 releases the floating mechanism 1, so that the floating mechanism 1 further floats and clamps the workpiece to be processed 15, so that the workpiece to be processed 15 is in close contact with the limiting plate 3, thereby allowing the workpiece to be processed 15 to be kept in close contact with the limiting plate 3 in real time during welding.

The present application sets up a floating mechanism 1, so that when the driving device 2 drives the floating mechanism 1 to move the workpiece 15 to be processed and positions the workpiece 15 to be processed, the floating mechanism 1 can be used to fine-tune the angle of the workpiece 15 to be processed during the pressing process, so that the workpiece 15 to be processed and the limit plate 3 are tightly fitted, which can effectively improve the stability of the workpiece 15 to be processed and avoid damage to the surface of the workpiece 15 to be processed.

In some exemplary embodiments, as shown in FIG. 2 , FIG. 3 and FIG. 5 , the floating mechanism 1 includes a fixed plate 101 , a floating plate 102 and at least one connecting assembly 103 ;

The fixed plate 101 and the floating plate 102 are connected via the connecting assembly 103;

In one example, the fixed plate 101 and the floating plate 102 are arranged opposite to each other; correspondingly, four connection components 103 may be included, and the four connection components 103 are distributed at four corresponding corners of the fixed plate 101 and the floating plate 102 .

There is a gap between the floating plate 102 and the fixed plate 101, and the floating plate 102 can move relative to the connecting assembly 103 within the range of the gap, so that the floating plate 102 can move relative to the fixed plate 101;

The locking mechanism 4 is slidably connected to the fixed plate 101 and the floating plate 102 , and the locking mechanism 4 is used to lock or release the floating plate 102 .

In one example, when the locking mechanism 4 releases the floating mechanism 1, the locking mechanism 4 only limits the fixed plate 101, and the floating plate 102 is in a freely released state; at this time, the floating plate 102 can tilt in any direction relative to the fixed plate 101 within the gap range.

When the locking mechanism 4 locks the floating mechanism 1 , the locking mechanism 4 can limit the positions of the fixed plate 101 and the floating plate 102 , and the angle between the floating plate 102 and the fixed plate 101 is constant.

In some exemplary embodiments, the connection assembly 103 includes a bolt 1031 and a first elastic member 1032 sleeved on the bolt 1031;

In one example, the first elastic member 1032 may be a spring.

One end of the bolt 1031 is connected to the floating plate 102, and the other end passes through the gap and is fixedly connected to the fixed plate 101;

In one example, the bolt 1031 is threadedly connected to the fixed plate 101 , and the other end is slidably connected to the floating plate 102 . Specifically, the floating plate 102 is limited by a nut at one end of the bolt 1031 , so that a gap is formed between the floating plate 102 and the fixed plate 101 .

Specifically, the height of the bolt 1031 may be equal to the sum of the height of the fixed plate 101 , the height of the floating plate 102 , and the height of the gap.

One end of the first elastic member 1032 is located in the floating plate 102, and the other end passes through the gap and is located in the fixed plate 101;

The floating plate 102 moves along the bolt 1031 within the gap range by compressing the first elastic member 1032;

The floating plate 102 can be tilted relative to the fixed plate 101 based on the elastic movement direction of the first elastic member 1032 .

In one example, the floating plate 102 may compress the first elastic member 1032 along the axial direction of the bolt, or may compress the first elastic member 1032 along the circumferential direction of the first elastic member 1032 , so that the floating plate can be tilted relative to the fixed plate 101 within the gap range.

In the embodiment of the present application, as shown in FIG1 , a welding protection device 5 is also included;

The welding protection device 5 is arranged on a side of the limiting plate 3 close to the floating mechanism 1;

When the floating mechanism 1 floats and presses the workpiece 15, the welding protection device 5 contacts the workpiece 15. The welding protection device 5 is used to weld the workpiece 15, which can not only improve the welding quality but also reduce the welding time.

In some exemplary embodiments, as shown in FIGS. 8 to 13 , the welding protection device 5 includes a welding accommodating mechanism 6 , a sealing mechanism 7 , an air charging duct 8 , and a dust removal duct 9 ;

The welding accommodating mechanism 6 has a welding cavity 601 formed therein; the welding cavity 601 corresponds to the welding point of the workpiece 15 to be processed. The welding chamber 601 is used to realize welding of the workpiece 15 to be processed.

A gas channel 10 is formed between the welding accommodating mechanism 6 and the sealing mechanism 7;

The gas channel 10 is distributed around the welding cavity 601 and is connected to the welding cavity 601;

In one example, the gas channel 10 is connected to the welding chamber 601 through through holes, and the through holes can be evenly distributed around the welding chamber 601, so that when the shielding gas is input, the shielding gas can enter the welding chamber 601 evenly.

One end of the inflation pipe 8 is connected to the gas channel 10, and the other end is connected to the inflation mechanism;

One end of the dust removal pipe 9 is connected to the welding chamber 601, and the other end is connected to the dust removal structure; the gas channel distributed around the welding chamber is formed by the welding accommodating mechanism and the sealing mechanism in the present application, so that when the protective gas needs to be input, it can be evenly distributed into the welding chamber through the gas channel, thereby improving the quality of welding and reducing the welding time.

In the embodiment of the present application, the welding accommodating mechanism 6 may include a welding cylinder 602 and a protective shell 603 sleeved on the welding cylinder 602;

The welding cavity 601 is located in the welding tube 602, and the welding cavity 601 passes through both ends of the welding tube 602;

In one example, one end of the welding tube 602 is fixedly connected to the limiting plate 3, and the other end is in contact with the workpiece to be processed 15 through the sealing mechanism 7; an opening connected to the welding chamber 601 is provided on the limiting plate 3; so that the welding equipment can enter the welding chamber 601 through the opening, and then perform welding processing on the welding points of the workpiece to be processed 15 corresponding to the welding chamber 601.

The sealing mechanism 7 is sleeved on one end of the welding tube 602, and a gas channel 10 is formed between the inner wall of the sealing mechanism 7 and the outer wall of the welding tube 602;

Specifically, the sealing mechanism 7 is provided with a channel communicating with the welding cavity 601 , so as to facilitate welding of the workpiece through the welding cavity 601 .

A gas containing chamber 604 is formed between one end of the protective shell 603 close to the sealing mechanism 7 and the outer wall of the welding cylinder 602;

In one example, an annular groove is formed on the protective shell 603 , and a gas containing chamber 604 is formed between the inner wall of the annular groove and the outer wall of the welding tube 602 .

One end of the gas charging pipe 8 is connected to the gas channel 10 through the gas containing chamber 604. The present application sets up the gas containing chamber 604 so that when the shielding gas is input, the shielding gas first enters the gas containing chamber 604, and then evenly enters the welding chamber through the gas channel 10, and when the shielding gas input is stopped, the unused shielding gas in the welding chamber can rise and enter the gas containing chamber 604 again, and the shielding gas originally unused in the gas containing chamber 604 stays in the gas containing chamber 604 for the next use, which can greatly save the use of shielding gas.

In some exemplary embodiments, at least one through hole 6021 is provided at one end of the welding cylinder 602;

The gas channel 10 is connected to the welding chamber 601 through the through hole 6021 .

In one example, when a through hole 6021 is provided on the welding cylinder 602 , the through hole 6021 may be distributed around the side wall of the welding cylinder 602 , so that the shielding gas in the gas channel 10 is evenly distributed into the welding chamber 601 through the through hole 6021 .

In another example, one end of the welding cylinder 602 is provided with a plurality of through holes 6021, and the plurality of through holes 6021 are evenly distributed along the side wall of the welding cylinder 602;

Each of the through holes 6021 is connected to the gas channel 10 , so that the protective gas in the gas channel 10 is evenly distributed into the welding chamber 601 through the through holes 6021 .

In some exemplary embodiments, the sealing mechanism 7 includes a sealing block 701 and a first sealing ring 702;

The sealing block 701 is sleeved on the welding cylinder 602;

In one example, the sealing block 701 is provided with a channel communicating with the welding chamber 601 , so as to facilitate welding of the workpiece to be processed through the welding chamber 601 .

Specifically, the welding cylinder 602 abuts against the workpiece 15 to be processed through the sealing block 701 .

The first sealing ring 702 is located on one side of the sealing block 701 close to the protective shell 603;

The first sealing ring 702 is respectively connected to the sealing block 701 and the protective shell 603 by interference fit.

In one example, a first annular groove is provided on one side of the sealing block 701 close to the protective shell 603, and the first sealing ring is located in the first annular groove, wherein the first sealing ring 702 protrudes and has an interference fit with the first annular groove and the protective shell 603. This method can improve the airtightness of the gas channel 10.

In another example, an annular groove cooperating with the first sealing ring 702 is provided on the protective shell 603 to improve the airtightness between the sealing block 701 and the protective shell 603 .

In some exemplary embodiments, the sealing block 701 includes a first annular ring 7011 and a second annular ring 7013 formed integrally;

The first annular ring 7011 is sleeved on the welding cylinder 602;

One end of the welding cylinder 602 abuts against the second annular ring 7013;

In an exemplary embodiment, the first annular groove is located on a side of the first annular ring 7011 away from the second annular ring 7013 .

A first communication channel 7012 is formed on the first annular ring 7011, and a second communication channel 7014 is formed on the second annular ring 7013;

The first communicating channel 7012 and the second communicating channel 7014 are in communication with the welding chamber 601 .

In one example, the inner diameter of the first communication channel 7012 is greater than the outer diameter of the welding cylinder 602, so that a gas channel 10 is formed between the inner side wall of the first annular ring 7011 and the outer side wall of the welding cylinder 602;

The through hole 6021 connecting the welding cavity 601 and the gas channel 10 is located on the inner side wall of the first annular ring 7011. On the outer side of the connecting sleeve 602.

The inner diameter of the second communication channel 7014 is greater than or equal to the inner diameter of the welding cavity 601 to avoid affecting the welding of the workpiece.

In some exemplary embodiments, the sealing mechanism 7 further includes a second sealing ring 703;

The second sealing ring 703 is located between the welding cylinder 602 and the second annular ring 7013;

The second sealing ring 703 is interference-fitted with the welding cylinder 602 and the second annular ring 7013 respectively.

In one example, a second annular groove is provided on one side of the second annular ring 7013 close to the first annular ring 7011 , and the second sealing ring 703 is located in the second annular groove. The second sealing ring 703 protrudes from the second annular groove and has an interference fit with the welding cylinder 602 .

Specifically, the welding cylinder 602 is provided with an annular groove matched with the second sealing ring 703 to improve the airtightness between the second annular ring 7013 and the welding cylinder 602 , thereby improving the airtightness of the gas channel 10 .

In some exemplary embodiments, the protective shell 603 is provided with a first channel 6031 and a second channel 6032 ; in one example, the first channel 6031 is located on a side of the second channel 6032 away from the sealing mechanism 7 .

The first channel 6031 is in communication with the gas containing chamber 604, and one end of the inflation pipe 8 is located in the first channel 6031;

One end of the inflation pipe 8 is connected to the gas containing chamber 604 through the first channel 6031, and the other end is connected to the inflation mechanism;

The second channel 6032 is in communication with the welding chamber 601, and one end of the dust removal pipe 9 is located in the second channel 6032;

One end of the dust removal pipe 9 is connected to the welding chamber 601 through the second channel 6032, and the other end is connected to the dust removal structure.

In some exemplary embodiments, as shown in FIG. 13 , the welding protection device may include a plurality of welding accommodating mechanisms 6 , sealing mechanisms 7 , inflation ducts 8 , and dust removal ducts 9 .

The working principle of the welding protection device of this application is as follows:

When welding is required for the workpiece, the protective gas (such as nitrogen) is uniformly input into the welding chamber 601 through the inflation pipe 8 through the first channel 6031, the gas containing chamber 604, the gas channel 10 and the through hole 6021 in sequence to achieve protection for welding; at the same time, the welding slag and the like generated in the welding chamber 601 are discharged through the dust removal pipe 9, thereby improving the quality of welding and saving welding time.

In some exemplary embodiments, as shown in FIG. 4 , FIG. 5 and FIG. 6 , the locking mechanism 4 includes a fixing pin 401 , a driving member 402 , a lifting member 403 and a second elastic member 404 ;

The driving member 402 is drivingly connected to the lifting member 403;

In one example, the driving member 402 may be a driving cylinder;

The fixing pin 401 may be a cylindrical pin; the lifting member 403 may be a lifting plate; and the second elastic member 404 may be a spring.

The fixing pin 401 is disposed on a side of the lifting member 403 away from the driving member 402, and the fixing pin 401 is slidably connected to the floating mechanism 1;

In one example, one end of the fixing pin 401 is fixedly connected to the lifting member 403 , and the other end is slidably connected to the floating mechanism.

The driving member 402 is used to drive the lifting member 403 to drive the fixing pin 401 to move toward or away from the floating mechanism 1, so as to lock or release the floating mechanism 1;

The second elastic member 404 is sleeved on the fixing pin 401;

The fixing pin 401 can move along the elastic movement direction of the second elastic member 404 , thereby enabling the fixing pin 401 to move toward or away from the lifting member 403 .

In some exemplary embodiments, a slot-type photoelectric switch 405 is also included;

The slot-type photoelectric switch 405 is used to detect the movement information of the fixing pin 401 when the locking mechanism 4 locks the floating mechanism 1 , so as to determine whether a workpiece to be processed is placed on the floating mechanism 1 .

In one example, the slot-type photoelectric switch 405 can be in a closed state when the locking mechanism locks the floating mechanism 1; after the workpiece to be processed is placed on the floating mechanism 1, the workpiece to be processed compresses the fixing pin 401 in the direction of the lifting member 403, and then the slot-type photoelectric switch 405 is disconnected; and then, whether the workpiece to be processed 15 is placed on the floating mechanism 1 can be judged based on the closed and disconnected states of the slot-type photoelectric switch 405.

In some exemplary embodiments, as shown in FIG. 7 , a pressure sensor 11 , a displacement sensor 12 , a substrate 13 and a bracket assembly 14 are also included;

The locking mechanism 4, the pressure sensor 11, and the displacement sensor 12 are all arranged on the substrate 13;

The base plate 13 is slidably connected to the bracket assembly 14;

The driving device 2 and the limiting plate 3 are both fixedly connected to the bracket assembly 14;

The driving device 2 is drivingly connected to the substrate 13;

The driving device 2 can drive the substrate 13 to move toward or away from the limiting plate 3, and the locking mechanism 4 and the floating mechanism 1 move synchronously with the substrate 13, thereby moving the workpiece to be processed on the floating mechanism 1 toward or away from the limiting plate 3 to achieve the pressing or releasing of the workpiece to be processed.

In one example, the driving device 2 drives the base plate 13 to slide along the bracket assembly 14 , thereby driving the locking mechanism 4 , the floating mechanism 1 and the base plate 13 to move synchronously.

The pressure sensor 11 is used to detect the pressure information between the workpiece 15 to be processed and the limit plate 3;

In one example, the pressure information between the workpiece 15 to be processed and the limiting plate 3 may be determined according to the resistance information of the substrate.

The displacement sensor 12 is used to detect displacement information of the substrate 13 .

In one example, the displacement sensor 12 may be a grating ruler; specifically, the displacement of the substrate 13 may be determined according to the moving distance of the grating ruler.

The control device is in communication connection with the pressure sensor 11, the displacement sensor 12, and the slot-type photoelectric switch 405 in the welding positioning device;

The control device is used to control the driving device 2 and the driving member 402 in the locking mechanism 4 to output driving force.

Specifically, the control device is used to receive and process the opening and closing information of the slot-type photoelectric switch 405 , the pressure information collected by the pressure sensor 11 , and the displacement information collected by the displacement sensor 12 .

In one example, when the pressure sensor detects that the pressure information between the workpiece 15 to be processed and the limiting plate 3 reaches a preset pressure threshold, it is determined whether the displacement information of the substrate is within a preset moving distance range. If so, the driving member 402 in the locking mechanism 4 is controlled to move in a direction away from the floating mechanism 1 to release the floating plate 102, thereby allowing the floating plate 102 to float and press the workpiece 15 to be processed.

In some exemplary embodiments, the control method of the welding positioning device is as follows: controlling the locking mechanism 4 to lock the floating mechanism 1; when it is detected that there is a workpiece 15 to be processed on the floating mechanism 1, controlling the driving device 2 to drive the locking mechanism 4, the floating assembly 1 and the workpiece 15 to be processed to move in a direction close to the welding protection device 5, and when it is detected that the pressure information reaches a preset pressure threshold and the displacement information of the substrate is less than or equal to a preset moving distance range, controlling the locking mechanism 4 to release the floating mechanism 1, so that the floating mechanism 1 floats and presses the workpiece 15 to be processed.

The working principle of the welding positioning device system of this application is as follows:

When welding is required for the workpiece to be processed, the workpiece to be processed 1 is moved onto the floating plate 102 of the floating mechanism 1, and the driving device 2 is controlled to drive the substrate 13 to move along the bracket assembly toward the welding protection device 5 on the limit plate 3, thereby driving the locking mechanism 4, the floating mechanism 1 and the workpiece to be processed 15 to rise until the pressure information between the workpiece to be processed 15 and the welding protection device 5 reaches a preset pressure threshold and the displacement information of the substrate is less than or equal to a preset moving distance range; the driving member 402 in the locking mechanism 4 is controlled to drive the lifting member 403 to move in a direction away from the floating mechanism 1 to release the floating plate 102, thereby making the floating plate 102 float and press the workpiece to be processed 15;

After the welding of the workpiece to be processed is completed, the control driving device 2 drives the substrate 13 to move away from the limiting plate 3, so that the workpiece to be processed 15 is away from the welding protection device, and the workpiece to be processed 15 is moved out of the floating mechanism 1 for the next step of processing, thereby completing the welding of the workpiece to be processed 15.

The invention has a simple structure and is easy to operate. It can not only reduce the amount of shielding gas used and the welding time, but also Ensure stability during welding.

The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

A welding positioning device, characterized in that it comprises a floating mechanism (1), a driving device (2), a limiting plate (3) and at least one locking mechanism (4);

The locking mechanism (4) is slidably connected to the floating mechanism (1), and the locking mechanism (4) is used to lock or release the floating mechanism (1);

The side of the floating mechanism (1) away from the locking mechanism (4) is used for accommodating the workpiece (15) to be processed;

The driving device (2) is drivingly connected to the locking mechanism (4);

The driving device (2) is used to drive the locking mechanism (4) to drive the floating mechanism (1) and the workpiece (15) to be processed on the floating mechanism (1) to move in a direction close to or away from the limiting plate (3), so that the floating mechanism (1) floats to press or release the workpiece (15) to be processed;

The floating mechanism (1) comprises a fixed plate (101), a floating plate (102) and at least one connecting component (103);

The fixed plate (101) and the floating plate (102) are connected via the connecting assembly (103);

There is a gap between the floating plate (102) and the fixed plate (101), and the floating plate (102) can move relative to the connecting assembly (103) within the range of the gap, so that the floating plate (102) can move relative to the fixed plate (101);

The locking mechanism (4) is slidably connected to the fixed plate (101) and the floating plate (102), and the locking mechanism (4) is used to lock or release the floating plate (102);

The connecting assembly (103) comprises a bolt (1031) and a first elastic member (1032) sleeved on the bolt (1031);

One end of the bolt (1031) is connected to the floating plate (102), and the other end passes through the gap and is fixedly connected to the fixed plate (101);

One end of the first elastic member (1032) is located in the floating plate (102), and the other end passes through the gap and is located in the fixed plate (101);

The floating plate (102) moves along the bolt (1031) within the gap range by compressing the first elastic member (1032);

The floating plate (102) is capable of tilting relative to the fixed plate (101) based on the elastic movement direction of the first elastic member (1032);

The locking mechanism (4) comprises a fixing pin (401), a driving member (402), a lifting member (403) and a second elastic member (404);

The driving member (402) is drivingly connected to the lifting member (403);

The fixing pin (401) is arranged on a side of the lifting member (403) away from the driving member (402). (401) is slidably connected to the floating mechanism (1);

The driving member (402) is used to drive the lifting member (403) to drive the fixing pin (401) to move towards or away from the floating mechanism (1) so as to lock or release the floating mechanism (1);

The second elastic member (404) is sleeved on the fixing pin (401);

The fixing pin (401) is capable of moving along the elastic movement direction of the second elastic member (404).
The welding positioning device according to claim 1, characterized in that it also includes a welding protection device (5);

The welding protection device (5) is arranged on a side of the limiting plate (3) close to the floating mechanism (1);

When the floating mechanism (1) floats and presses the workpiece (15) to be processed, the welding protection device (5) contacts the workpiece (15) to be processed.
The welding positioning device according to claim 2, characterized in that the welding protection device (5) comprises a welding accommodating mechanism (6), a sealing mechanism (7), an air filling pipeline (8) and a dust removal pipeline (9);

A welding cavity (601) is formed in the welding accommodating mechanism (6);

A gas channel (10) is formed between the welding accommodating mechanism (6) and the sealing mechanism (7);

The gas channel (10) is connected to the welding chamber (601);

One end of the inflation pipe (8) is in communication with the gas channel (10), and the other end is in communication with the inflation mechanism;

One end of the dust removal pipe (9) is in communication with the welding chamber (601), and the other end is in communication with the dust removal structure.
The welding positioning device according to claim 3, characterized in that the welding accommodating mechanism (6) comprises a welding cylinder (602) and a protective shell (603) sleeved on the welding cylinder (602);

The welding cavity (601) is located in the welding cylinder (602), and the welding cavity (601) runs through both ends of the welding cylinder (602);

The sealing mechanism (7) is sleeved on one end of the welding tube (602), and the gas channel (10) is formed between the inner wall of the sealing mechanism (7) and the outer wall of the welding tube (602);

A gas containing chamber (604) is formed between one end of the protective shell (603) close to the sealing mechanism (7) and the outer side wall of the welding cylinder (602);

One end of the inflation pipe (8) is in communication with the gas channel (10) via the gas containing chamber (604).
The welding positioning device according to claim 1, characterized in that it also includes a slot-type photoelectric switch (405);

The slot-shaped photoelectric switch (405) is used to detect movement information of the fixing pin (401) when the locking mechanism (4) locks the floating mechanism (1).
The welding positioning device according to claim 1, characterized in that it also includes a pressure sensor (11), a displacement sensor (12), a base plate (13) and a bracket assembly (14);

The locking mechanism (4), the pressure sensor (11), and the displacement sensor (12) are all arranged on the substrate (13);

The base plate (13) is slidably connected to the support assembly (14);

The driving device (2) and the limiting plate (3) are both fixedly connected to the bracket assembly (14);

The driving device (2) is drivingly connected to the substrate (13);

The driving device (2) is capable of driving the base plate (13) to move in a direction close to or away from the limiting plate (3), and the locking mechanism (4), the floating mechanism (1) and the base plate (13) move synchronously;

The pressure sensor (11) is used to detect pressure information between the workpiece (15) to be processed and the limiting plate (3);

The displacement sensor (12) is used to detect displacement information of the substrate (13).
A welding positioning system, characterized in that it comprises a welding positioning device and a control device, wherein the welding positioning device is the welding positioning device according to any one of claims 1 to 6;

The control device is in communication connection with a pressure sensor (11), a displacement sensor (12), and a slot-type photoelectric switch (405) in the welding positioning device;

The control device is used to control the drive device (2) and the drive member (402) in the locking mechanism (4) to output a driving force.