A welding tool for automobile front wall connecting plate

Abstract

The present invention discloses a welding tool for a front wall connecting plate of an automobile, and relates to the technical field of automobile parts processing, comprising a placement rack capable of placing the front wall connecting plate of the automobile, wherein a plurality of groups of lower pressing plates are evenly inserted on the placement rack, and auxiliary plates are fixed to the bottoms of both sides of each group of lower pressing plates, and a limiting component is arranged on the placement rack. By setting the limiting component, the entire positioning process of the front wall connecting plate of the automobile is simple and convenient, and the front wall connecting plate of the automobile only needs to be pressed downward to be quickly and multi-directionally adsorbed and positioned according to the size and external shape of the front wall connecting plate of the automobile, and the top of the front wall connecting plate of the automobile can be completely exposed, and the influence of the top pressing or the side pressing on the normal welding of the front wall connecting plate of the automobile can be effectively avoided, and the unused lower pressing plates only need to be pressed downward and hidden on the placement rack, and the influence of the normal welding work of the front wall connecting plate of the automobile can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a welding tool for an automobile front wall connecting plate. Background Art

[0002] The car's front connecting plate refers to the partition between the engine compartment and the car body. It is connected to the floor and the front pillar and installed under the front cover. The main function of this partition is to prevent the exhaust gas, high temperature and noise in the engine compartment from entering the car body, and to protect the comfort and safety of the car. When processing the car's front connecting plate, the car's front connecting plate welding tooling is required.

[0003] When the existing welding tool is used to weld the automobile dash connecting plate, it is necessary to position the automobile dash connecting plate in advance. However, since the automobile dash connecting plate is mostly of irregular shape and has a certain arc, the existing welding tool has a poor positioning effect on the automobile dash connecting plate and cannot quickly position it in multiple places according to the size and external shape of the automobile dash connecting plate. As a result, the automobile dash connecting plate is prone to position shift during the welding process, which directly affects the processing accuracy of the automobile dash connecting plate. Therefore, a welding tool for automobile dash connecting plates is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a welding tool for a front connecting plate of an automobile, so as to solve the problem that the positioning effect is poor and the front connecting plate of the automobile cannot be quickly positioned in multiple places according to its size and external shape, which causes the front connecting plate of the automobile to be easily moved during the welding process, thereby directly affecting the processing accuracy of the front connecting plate of the automobile.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding tool for a front connecting plate of an automobile, comprising a placement rack capable of placing the front connecting plate of an automobile, a plurality of groups of lower pressure plates being evenly inserted on the placement rack, auxiliary plates being fixed to the bottom of both sides of each group of lower pressure plates, fixing racks being inserted on two adjacent groups of the auxiliary plates and the top of the fixing racks being fixed to the top of an inner cavity of the placement rack, two groups of first springs being symmetrically wound on each group of the fixing racks along the left-right direction and the two ends of the first springs being fixed to the auxiliary plates and the top of the inner cavity of the placement rack, and a limiting component being arranged on the placement rack.

[0006] Preferably, the limit assembly includes a flip block rotatably mounted on each group of lower pressure plates, each group of lower pressure plates is inserted with a vertical tube, one end of the vertical tube is connected to a first telescopic tube, one end of the first telescopic tube away from the vertical tube is connected to a straw and one end of the straw is embedded in the flip block, the other end of the vertical tube is connected to a second telescopic tube, one end of the second telescopic tube away from the vertical tube is connected to a three-way tube embedded in the bottom of the fixed frame, a displacement sensor is embedded in the bottom of the left auxiliary plate, an air pump is fixed on the front side of the top of the inner cavity of the placement rack, the air inlet end of the air pump is connected to a main pipe, the main pipe is respectively connected to the first connecting frame and the second connecting frame in the upper and lower directions, the bottom ends of multiple groups of three-way tubes are connected to the second connecting frame, each group of three-way tubes is provided with a first auxiliary solenoid valve at one end away from the second telescopic tube and the second connecting frame, a chamber is opened in each group of the lower pressure plates, the vertical tube is connected to a second auxiliary solenoid valve and the second auxiliary solenoid valve is located in the chamber, and a photodiode sensor is embedded in each group of the straws.

[0007] The cam is secured to the bottom of the L-shaped plate and has one end each for locking the cam in place.

[0008] Preferably, two groups of sealing rings for use with straws are embedded in sequence from the inside to the outside on each group of the flip blocks.

[0009] Preferably, the placement rack is provided with an auxiliary placement groove for use with the flip block.

[0010] Preferably, a fixing groove is formed on each group of the lower pressing plates, the first telescopic tube is located in the fixing groove, and there is a gap between the bottom of the flip block and the bottom of the inner cavity of the fixing groove.

[0011] Preferably, the number of the lower pressing plates is at least twenty groups.

[0012] Preferably, there is a spacing between the T-shaped rod and the lower pressing plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present invention, by setting a limit assembly and utilizing the elastic rebound of the first spring, a supporting force can be continuously given to the auxiliary plate and the lower pressure plate, so that the lower pressure plate can be kept in a jacking state on the placement frame, so that the automobile front wall connecting plate can stably press down multiple groups of lower pressure plates until the bottom of the automobile front wall connecting plate contacts the placement plate. At this time, under the action of the first spring, multiple groups of lower pressure plates can make the movable flip blocks stably fit at various places on the bottom of the automobile front wall connecting plate according to the external shape of the automobile front wall connecting plate, and cooperate with multiple groups of displacement sensors to monitor the position and number of the moving lower pressure plates in real time. At the same time, the photodiode sensor can monitor the brightness between the bottom of the automobile front wall connecting plate and the flip block in real time, so as to monitor the sealing degree in real time. At the same time, with the assistance of the air pump, it can The first installation solenoid valve and the second auxiliary solenoid valve adapted for moving the lower pressure plate downward are quickly opened to quickly extract the air in the corresponding suction tubes and suction cups and keep the negative pressure inside them, so that the suction cups can be used to quickly position the lower pressure plate after it is moved downward, and the flip block can be quickly adsorbed on the bottom of the front connecting plate of the automobile. The whole positioning process is simple and convenient. Only the front connecting plate of the automobile needs to be pressed downward to quickly and multi-directionally adsorb and position it according to its size and external shape, and the top of the front connecting plate of the automobile can be completely exposed, which can effectively avoid the top pressing or side pressing affecting the normal welding of the front connecting plate of the automobile, and the unused lower pressure plate only needs to be pressed down and hidden on the placement rack, which can effectively avoid affecting the normal welding work of the front connecting plate of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a welding tool for a front wall connecting plate of an automobile according to the present invention;

[0016] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0017] Figure 3 This is a bottom view of the structure of a welding tool for a front wall connecting plate of an automobile according to the present invention;

[0018] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0019] Figure 5 for Figure 3 A magnified view of the structure at C in the middle;

[0020] Figure 6 It is a partial cross-sectional view of the structure of the lower pressing plate and the turning block of the present invention;

[0021] Figure 7 It is a partial three-dimensional diagram of the structure of the limiting assembly of the present invention;

[0022] Figure 8It is a partial cross-sectional view of the structure of the placement rack of the present invention.

[0023] In the figure: 1. placement rack; 2. lower pressure plate; 3. auxiliary plate; 4. fixing rack; 5. first spring; 6. displacement sensor; 7. flip block; 8. vertical pipe; 9. first telescopic pipe; 10. suction pipe; 11. sealing ring; 12. L-shaped plate; 13. T-shaped rod; 14. mounting plate; 15. second spring; 16. docking pipe; 17. suction cup; 18. auxiliary telescopic pipe; 19. L-shaped pipe; 20. branch pipe; 21. first installation solenoid valve; 22. second installation solenoid valve; 23. second telescopic pipe; 24. three-way pipe; 25. photodiode sensor; 26. first auxiliary solenoid valve; 27. chamber; 28. second auxiliary solenoid valve; 29. ​​air pump; 30. main pipe; 31. first connecting rack; 32. second connecting rack; 33. auxiliary placement slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 8The present invention provides a technical solution: a welding tool for a front wall connecting plate of an automobile, comprising a placement rack 1 capable of placing the front wall connecting plate of the automobile, a plurality of groups of lower pressing plates 2 are evenly inserted on the placement rack 1, the number of the lower pressing plates 2 is at least twenty groups, and the number of the lower pressing plates 2 is limited so that the front wall connecting plates of automobiles with different sizes and shapes can be fixed, auxiliary plates 3 are fixed to the bottoms of both sides of each group of lower pressing plates 2, fixing racks 4 are inserted on two adjacent groups of auxiliary plates 3, and the tops of the fixing racks 4 are fixed to the top of the inner cavity of the placement rack 1, two groups of first springs 5 ​​are symmetrically wound on each group of fixing racks 4 along the left-right direction, and the two ends of the first springs 5 ​​are fixed to the tops of the auxiliary plates 3 and the inner cavities of the placement rack 1, and a limiting component is arranged on the placement rack 1, and the limiting component includes a rotating device A flip block 7 is arranged on each group of lower pressure plates 2, and an auxiliary placement groove 33 used in conjunction with the flip block 7 is opened on the placement frame 1. The design of the auxiliary placement groove 33 makes it easy to completely hide the top flip block 7 on the placement frame 1 when the unused lower pressure plate 2 is pressed down, so as to avoid the protrusion of the flip block 7 affecting the normal welding work of the front wall connecting plate of the automobile. A vertical tube 8 is inserted in each group of lower pressure plates 2, and one end of the vertical tube 8 is connected to a first telescopic tube 9. The end of the first telescopic tube 9 away from the vertical tube 8 is connected to a straw 10, and one end of the straw 10 is embedded in the flip block 7. Two groups of sealing rings 11 used in conjunction with the straw 10 are sequentially embedded on each group of flip blocks 7 from the inside to the outside. By setting the sealing ring 11, the sealing effect between the flip block 7 and the front wall connecting plate of the automobile is improved. , thereby improving the adsorption effect of the flip block 7 on the front connecting plate of the automobile, the other end of the vertical tube 8 is connected with the second telescopic tube 23, and a fixed groove is opened on each group of lower pressure plates 2, and the first telescopic tube 9 is located in the fixed groove. There is a spacing between the bottom of the flip block 7 and the bottom of the inner cavity of the fixed groove. The design of the fixed groove and the spacing can give the flip block 7 a certain rotatable space so that it can better fit at the bottom of the front connecting plate of the automobile, and the first telescopic tube 9 has a certain pulling force, which can initially limit the flip block 7, so that the flip block 7 can maintain a relatively horizontal state when not in use. The end of the second telescopic tube 23 away from the vertical tube 8 is connected with a three-way pipe 24 embedded in the bottom of the fixed frame 4, and a displacement sensor 6 is embedded at the bottom of the left auxiliary plate 3. The top of the inner cavity of the placement frame 1 An air pump 29 is fixed on the front of the part, and the air inlet end of the air pump 29 is connected to a main pipe 30. The main pipe 30 is connected to a first connecting frame 31 and a second connecting frame 32 in the up and down directions respectively. The bottom ends of multiple groups of three-way pipes 24 are connected to the second connecting frame 32. The end of each group of three-way pipes 24 away from the second telescopic tube 23 and the second connecting frame 32 is provided with a first auxiliary solenoid valve 26. A chamber 27 is opened in each group of lower pressure plates 2, and a second auxiliary solenoid valve 28 is connected to the vertical pipe 8 and the second auxiliary solenoid valve 28 is located in the chamber 27. A photodiode sensor 25 is embedded in each group of straws 10. The limiting assembly also includes multiple groups of L-shaped plates 12 fixed to the top of the inner cavity of the placement frame 1 and used in conjunction with the lower pressure plate 2. A T-shaped rod 13 is longitudinally inserted into each group of L-shaped plates 12.A mounting plate 14 is fixed to one end of the T-shaped rod 13 away from the lower pressing plate 2, a second spring 15 is wound around each set of T-shaped rods 13, and both ends of the second spring 15 are fixed to the protruding ends of the T-shaped rod 13 and the L-shaped plate 12, a butt joint 16 with one end embedded in the mounting plate 14 is inserted into the L-shaped plate 12, and there is a spacing between the T-shaped rod 13 and the lower pressing plate 2. The spacing is designed to prevent the T-shaped rod 13 from directly contacting the lower pressing plate 2 and affecting the normal movement of the lower pressing plate 2, one end of the butt joint 16 is connected to a suction cup 17 attached to the lower pressing plate 2, and the other end of the butt joint 16 is connected to an auxiliary telescopic tube 18, an L-shaped tube 19 is embedded at the bottom of the L-shaped plate 12, and one end of the L-shaped tube 19 is connected to the auxiliary telescopic tube 18, and the other end of the L-shaped tube 19 is connected to the first connecting frame 31, and each set of L The L-shaped tube 19 is connected with a branch tube 20, a first installation solenoid valve 21 is provided on the L-shaped tube 19, and a second installation solenoid valve 22 is provided on the branch tube 20. By setting a limit assembly, the entire positioning process of the front wall connecting plate of the automobile is simple and convenient. Only by pressing the front wall connecting plate of the automobile downward, it can be quickly adsorbed and positioned in multiple directions according to the size and external shape of the front wall connecting plate of the automobile, and the top of the front wall connecting plate of the automobile can be completely exposed, which can effectively avoid the top pressing or side pressing method affecting the normal welding of the front wall connecting plate of the automobile, and the unused lower pressure plate 2 only needs to be pressed down and hidden on the placement rack 1, which can effectively avoid affecting the normal welding work of the front wall connecting plate of the automobile. An external frame is fixed on the top of one side of the placement rack 1, and a controller is provided on the external frame.

[0026] Working principle: Under the elastic rebound effect of the first spring 5, a supporting force can be continuously given to the auxiliary plate 3 and the lower pressure plate 2, so that the lower pressure plate 2 can be kept in the jacking state on the placement rack 1. The user presses the front wall connecting plate of the car downward. At this time, the bottom of the front wall connecting plate of the car will pre-contact the flip block 7, and the movable flip block 7 can be tightly attached to the bottom of the front wall connecting plate of the car. As the front wall connecting plate of the car continues to move downward, the lower pressure plate 2 and the auxiliary plate 3 will be driven to move downward synchronously, and the first spring 5 will be stretched synchronously until the bottom of the front wall connecting plate of the car contacts the placement rack 1. At this time, the first spring is used to 5 has elastic rebound, and multiple groups of lower pressure plates 2 can make the movable flip blocks 7 stably fit at various places on the bottom of the front connecting plate of the automobile according to the external shape of the front connecting plate of the automobile. At this time, with the cooperation of the displacement sensor 6, the position of the movable lower pressure plate 2 can be timely known, and the photodiode sensor 25 can monitor the brightness in the straw 10, so as to quickly know that certain groups of flip blocks 7 have contacted with the bottom of the front connecting plate of the automobile and are in a sealed state. At this time, the user turns on the air pump 29 through the controller, and turns on the first installation solenoid valve 21 and the second auxiliary solenoid valve 22 adapted for use with the movable lower pressure plate 2. The magnetic valve 28, at this time, the air pump 29 can quickly extract the air in the corresponding suction tube 10 and the suction cup 17 through the first connecting frame 31 and the second connecting frame 32, so that the suction tube 10 and the suction cup 17 are kept in a negative pressure state, and the elastic rebound of the second spring 15 is used to make the suction cup 17 fit on the lower pressure plate 2 in real time. At this time, the suction cup 17 in the negative pressure state can be quickly adsorbed on the lower pressure plate 2 after it is moved down, so that the lower pressure plate 2 after it is moved down can be quickly positioned, and the flip block 7 can be quickly adsorbed on the bottom of the front connecting plate of the automobile, so that the front connecting plate of the automobile can be quickly adsorbed and fixed from different positions and angles, and the entire positioning The process is simple and convenient, and the user only needs to press down the car's front connecting plate to quickly and multi-directionally adsorb and position it according to its size and external shape. The bottom adsorption and fixing method can fully expose the top and sides of the car's front connecting plate, which can effectively avoid the top pressing or side pressing method affecting the normal welding of the car's front connecting plate. Since there are a large number of lower pressing plates 2, if there are unused lower pressing plates 2 that affect the welding work, the user only needs to press them down and hide them on the placement rack 1 and adsorb and fix them. Then the user can use welding tools to start welding the car's front connecting plate.

[0027] However, as is well known to those skilled in the art, the working principles and wiring methods of the controller, photodiode sensor 25, displacement sensor 6, first installed solenoid valve 21, second installed solenoid valve 22, first auxiliary solenoid valve 26, second auxiliary solenoid valve 28 and air pump 29 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool for a front wall connecting plate of an automobile, comprising a placement frame (1) capable of placing the front wall connecting plate of the automobile, characterized in that: A plurality of groups of lower pressing plates (2) are evenly inserted on the placement rack (1), and auxiliary plates (3) are fixed to the bottom of both sides of each group of lower pressing plates (2), and fixing frames (4) are inserted on two adjacent groups of auxiliary plates (3), and the top of the fixing frame (4) is fixed to the top of the inner cavity of the placement rack (1), and two groups of first springs (5) are symmetrically wound on each group of fixing frames (4) along the left-right direction, and the two ends of the first springs (5) are fixed to the top of the inner cavity of the auxiliary plates (3) and the placement rack (1), and a limit position component is provided on the placement rack (1); The limit assembly comprises a flip block (7) rotatably mounted on each group of lower pressure plates (2), a vertical tube (8) is inserted in each group of the lower pressure plates (2), one end of the vertical tube (8) is connected to a first telescopic tube (9), the end of the first telescopic tube (9) away from the vertical tube (8) is connected to a suction tube (10) and one end of the suction tube (10) is embedded in the flip block (7), the other end of the vertical tube (8) is connected to a second telescopic tube (23), the end of the second telescopic tube (23) away from the vertical tube (8) is connected to a three-way tube (24) embedded in the bottom of the fixed frame (4), a displacement sensor (6) is embedded in the bottom of the left auxiliary plate (3), and an air pump is fixed on the front of the top of the inner cavity of the placement frame (1). (29), the air inlet end of the air pump (29) is connected to a main pipe (30), the main pipe (30) is connected to a first connecting frame (31) and a second connecting frame (32) in the up and down directions respectively, the bottom ends of the multiple groups of three-way pipes (24) are connected to the second connecting frame (32), and the end of each group of three-way pipes (24) away from the second telescopic pipe (23) and the second connecting frame (32) is provided with a first auxiliary solenoid valve (26), each group of the lower pressure plate (2) is provided with a chamber (27), the vertical pipe (8) is connected to a second auxiliary solenoid valve (28) and the second auxiliary solenoid valve (28) is located in the chamber (27), and each group of the suction pipes (10) is embedded with a photodiode sensor (25); The limiting assembly also includes a plurality of groups of L-shaped plates (12) fixed to the top of the inner cavity of the placement frame (1) and used in conjunction with the lower pressure plate (2), each group of the L-shaped plates (12) having a T-shaped rod (13) inserted longitudinally thereon, an end of the T-shaped rod (13) away from the lower pressure plate (2) having a mounting plate (14) fixed thereto, a second spring (15) wound around each group of the T-shaped rod (13) and the two ends of the second spring (15) being fixed to the protruding ends of the T-shaped rod (13) and the L-shaped plate (12), a butt joint pipe (16) having one end embedded in the mounting plate (14) being inserted thereon, and the butt joint pipe One end of the butt joint (16) is connected to a suction cup (17) attached to the lower pressure plate (2), the other end of the butt joint (16) is connected to an auxiliary telescopic tube (18), an L-shaped tube (19) is embedded at the bottom of the L-shaped plate (12), one end of the L-shaped tube (19) is connected to the auxiliary telescopic tube (18), the other end of the L-shaped tube (19) is connected to a first connecting frame (31), each group of the L-shaped tubes (19) is connected to a branch tube (20), a first installation solenoid valve (21) is provided on the L-shaped tube (19), and a second installation solenoid valve (22) is provided on the branch tube (20); Two groups of sealing rings (11) for use with the straws (10) are sequentially embedded on each group of the turning blocks (7) from the inside to the outside; The placement rack (1) is provided with an auxiliary placement groove (33) for use with the turning block (7); A fixing groove is formed on each group of the lower pressing plates (2), the first telescopic tube (9) is located in the fixing groove, and there is a gap between the bottom of the flip block (7) and the bottom of the inner cavity of the fixing groove; The number of the lower pressing plates (2) is at least twenty groups; There is a distance between the T-shaped rod (13) and the lower pressing plate (2).

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