CN215356673U

CN215356673U - Spot welding machine with automatic positioning function

Info

Publication number: CN215356673U
Application number: CN202120849224.5U
Authority: CN
Inventors: 秦旭峰; 姜伟宏; 周勇
Original assignee: Changzhou Mengzhida Automobile Motor Co ltd
Current assignee: Changzhou Mengzhida Automobile Motor Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-31
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a spot welding machine with automatic positioning, and relates to the technical field of spot welding machines. This practicality is through setting up the effect that the structure played the buffering protection bonding tool above, utilize the telescopic link surface to set up buffer spring, buffering bonding tool impulse pressure, to bonding tool buffering protection, the life of extension bonding tool, reduce economic cost, laser positioning component control motor carries out automatic weld location, still play the effect that compresses tightly in advance through setting up above structure, utilize pressure spring elasticity potential energy constantly to increase, elastic pressure promotes the clamp plate and compresses tightly the work piece, have the function that compresses tightly in advance, prevent among the welding process, the welding work piece displacement leads to the welding askew partially, thereby improve the welding precision, improve welding quality.

Description

Spot welding machine with automatic positioning function

Technical Field

The utility model relates to the technical field of spot welding machines, in particular to a spot welding machine with automatic positioning function.

Background

The working principle of the spot welding machine is that the welding flux and the welded material on the welding electrode are melted by the high-temperature electric arc generated when the anode and the cathode are short-circuited instantly, so that the purpose of combining the welding flux and the welded material is achieved, and in order to ensure the size of a nugget and the strength of a welding point, the welding time and the welding current can be mutually supplemented within a certain range. In order to ensure a certain strength of the welding point, a large current can be used for a short time (strong condition, also called as hard specification), and a small current can be used for a long time (weak condition, also called as soft specification). On the premise of ensuring the size of a nugget and the strength of a welding spot, the welding time and the welding current need to be mutually supplemented within a certain range, specifically, a hard standard or a soft standard is selected, the performance and the thickness of metal and the power of a welding machine used have an upper limit and a lower limit on the current and the time required by the metal with different performances and thicknesses, and the requirements are met when the spot welding machine is used.

In the existing method, when a welding head of a spot welding machine is used, pressure is usually required to act on the welding head, the welding head is gradually deformed due to impact along with use, so that the use is influenced, the service life of the welding head is short due to the impact, and the economic loss is caused by replacing the welding head.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spot welding machine with automatic positioning to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: a spot welding machine with automatic positioning comprises a bottom plate, wherein both sides of the top of the bottom plate are fixedly connected with side columns, the tops of the opposite sides of the two side columns are respectively connected with a protection box and a connecting block in a sliding manner, the bottoms of the protection box and the connecting block are both fixedly connected with an electric push rod, the bottom of the inner wall of the protection box is fixedly connected with a motor, one end of the motor output shaft, which is positioned outside the protection box, is fixedly connected with a screw rod, the surface of the screw rod is in threaded connection with a moving block, the bottom of the moving block is fixedly connected with an organism, the bottom of the organism is provided with a welding head, the bottom of the organism and the middle part of the welding head are provided with a laser positioning component, the top of bottom plate just is located the equal fixedly connected with telescopic link in two relative one sides of electric putter, two the top fixedly connected with welding bench of telescopic link, two the surface of telescopic link all is equipped with buffer spring.

Further, the top of the opposite side of the side column is provided with a sliding groove, the surface of the inner wall of the sliding groove is connected with one side of the protection box and the connecting block in a sliding mode respectively in a back-to-back mode through a sliding block, the bottom end of the electric push rod is fixedly connected with the top of the bottom plate, the electric push rod is located on the opposite side of the two side columns respectively, and the sliding groove plays a role in enhancing the moving stability.

Furthermore, the output shaft of the motor runs through the protection box and extends to the outside of the protection box, the guide rod penetrates through the top of the moving block, the right end of the guide rod is fixedly connected with the top of the left side of the protection box, the left end of the guide rod is fixedly connected with the top of the right side of the connecting block, the guide rod plays a role in limiting and assisting balance for the moving block, the two buffer springs are respectively located on two sides between the welding table and the bottom plate, the top of the bottom plate is located on one side, opposite to the two telescopic rods, of each telescopic rod, and the limiting blocks play a role in limiting the up-down movement distance of the welding table.

Further, the bottom of organism both sides all fixedly connected with fixed block, two the slide bar has all run through on the fixed block, two the bottom fixedly connected with clamp plate of slide bar, two the surface of slide bar all overlaps and is equipped with pressure spring, two pressure spring is located between one side that two fixed blocks and clamp plate are relative respectively, the through-hole has been seted up at the middle part of clamp plate.

Further, the bottom fixedly connected with a plurality of cushion blocks of clamp plate, the cushion block adopts the silica gel material, the cushion block plays the effect of buffering protection, avoids electrically conductive danger.

Further, two the equal fixedly connected with limiting plate in top of slide bar, two the surperficial top of slide bar all is equipped with spacing spring, two spacing spring is located respectively between two limiting plates and two relative one sides of fixed block, prevents the collision, has played spacing effect.

Compared with the prior art, the utility model has the following beneficial effects:

1. this spot welder with automatic positioning has played the effect of buffering protection bonding tool through setting up above structure, utilizes the telescopic link surface to set up buffer spring, cushions bonding tool impact pressure, and to bonding tool buffering protection, the life of extension bonding tool reduces economic cost, and laser positioning subassembly control motor carries out automatic weld location.

2. This spot welder with automatic positioning has played the effect that compresses tightly in advance through setting up above structure, utilizes the continuous increase of pressure spring elasticity potential energy, and elastic pressure promotes the clamp plate and compresses tightly the work piece, has the function of compressing tightly in advance, prevents among the welding process, and the welding work piece displacement leads to welding askew partially to improve welding precision, improve welding quality.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is an enlarged schematic view of the utility model at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the utility model at B of FIG. 1;

fig. 4 is a bottom view of the platen of the present invention.

In the figure: 1. a base plate; 2. a side post; 3. a protection box; 4. connecting blocks; 5. an electric push rod; 6. a motor; 7. a screw rod; 8. a moving block; 9. a body; 10. a welding head; 11. a telescopic rod; 12. a welding table; 13. a buffer spring; 14. a limiting block; 15. a fixed block; 16. a slide bar; 17. pressing a plate; 18. a compression spring; 19. a through hole; 20. cushion blocks; 21. a limiting plate; 22. a limiting spring; 23. a chute; 24. a slider; 25. a guide bar; 26. and a laser positioning assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The spot welding with automatic positioning shown in fig. 1-2 and 4 comprises a bottom plate 1, wherein two sides of the top of the bottom plate 1 are fixedly connected with side columns 2, the tops of the opposite sides of the two side columns 2 are respectively connected with a protection box 3 and a connecting block 4 in a sliding manner, the bottoms of the protection box 3 and the connecting block 4 are respectively fixedly connected with an electric push rod 5, the bottom of the inner wall of the protection box 3 is fixedly connected with a motor 6, one end of an output shaft of the motor 6, which is positioned outside the protection box 3, is fixedly connected with a lead screw 7, the surface of the lead screw 7 is connected with a moving block 8 in a threaded manner, the bottom of the moving block 8 is fixedly connected with an organism 9, the bottom of the organism 9 is provided with a welding head 10, the bottom of the organism 9 and the middle of the welding head 10 are provided with a laser positioning assembly 26, the top of the bottom plate 1 and the opposite sides of the two electric push rods 5 are respectively fixedly connected with an expansion link 11, two the top fixedly connected with welding bench 12 of telescopic link 11, two the surface of telescopic link 11 all is equipped with buffer spring 13.

Two spout 23 has all been seted up at the top of the relative one side of side post 2, two the surface of the 23 inner walls of spout all through slider 24 respectively with guard box 3 and the one side sliding connection that connecting block 4 carried on the back mutually, two the bottom of electric putter 5 and the top fixed connection of bottom plate 1, two electric putter 5 is located two relative one sides of side post 2 respectively, during the use, spout 23 cooperation slider 24 removes for vertical steady movement about guard box 3 and connecting block 4 can be.

The output shaft of the motor 6 penetrates through the protection box 3 and extends to the outside of the protection box 3, the top of the moving block penetrates through a guide rod 25, the right end of the guide rod 25 is fixedly connected with the top of the left side of the protection box 3, the left end of the guide rod 25 is fixedly connected with the top of the right side of the connecting block 4, and when the moving block is used, the guide rod 25 keeps the moving block 8 stable in left-right moving and limits the moving block not to rotate along with the rotation of the lead screw 7.

Two buffer spring 13 is located the both sides between welding bench 12 and the bottom plate 1 respectively, the top of bottom plate 1 just is located the equal fixedly connected with stopper 14 in two telescopic link 11 relative one sides, during the use, stopper 14 reciprocates the distance restriction to welding bench 12, avoids too downstream.

The implementation mode is specifically as follows: when the welding machine is used, the motor 6 rotates to drive the lead screw 7 to rotate, the moving block 8 in threaded connection with the surface of the lead screw 7 moves leftwards or rightwards along the left direction, the moving block 8 drives the welding head 10 at the bottom of the machine body 9 to move, at the moment, the laser positioning assembly 26 arranged at the bottom of the machine body 9 positions a welding seam, when the laser positioning assembly 26 is positioned to the welding seam, the motor 6 stops working, the lead screw 7 stops rotating, the moving block 8 on the surface of the lead screw 7 stops moving, then the two electric push rods 5 synchronously shorten, the two electric push rods 5 synchronously drive the protective box 3 and the connecting block 4 to simultaneously move downwards along the sliding grooves 23 of the two side columns 2, the moving block 8 on the lead screw 7 and the guide rod 25 is pushed to move downwards, the moving block 8 drives the welding head 10 at the bottom of the machine body 9 to move downwards to weld the welding seam, when welding is performed, the pressure is higher, the welding table 12 is pressed downwards, the welding table 12 pushes the two telescopic rods 11 to shorten, the buffer spring 13 on two telescopic link 11 surfaces compresses, and to pressure buffering, pressure transmission to bottom plate 1 to offset pressure, played the effect of buffering protection bonding tool 10 through setting up above structure, utilized telescopic link 11 surfaces to set up buffer spring 13, buffering bonding tool 10 impact pressure, to bonding tool 10 buffer protection, the life of extension bonding tool reduces economic cost, laser positioning assembly 26 control motor 6 carries out automatic weld positioning.

The spot welding machine with the automatic positioning function as shown in fig. 1 and 3 further comprises two fixing blocks 15 fixedly connected to the bottoms of the two sides of the machine body 9, two sliding rods 16 penetrate through the two fixing blocks 15, a pressing plate 17 is fixedly connected to the bottom ends of the two sliding rods 16, pressing springs 18 are sleeved on the surfaces of the two sliding rods 16, the two pressing springs 18 are respectively located between the two fixing blocks 15 and one side, opposite to the pressing plate 17, of each pressing plate 17, and a through hole 19 is formed in the middle of each pressing plate 17.

The bottom fixedly connected with of clamp plate 17 has a plurality of cushions 20, cushion 20 adopts the silica gel material, and during the use, cushion 20 plays the effect of buffer protection, avoids clamp plate 17 bottom collision welding material on the welding bench 12 to silica gel is insulating, also avoids electrically conductive danger.

Two equal fixedly connected with limiting plate 21 in top of slide bar 16, two the surperficial top of slide bar 16 all is equipped with spacing spring 22, two spacing spring 22 is located respectively between two limiting plates 21 and two relative one sides of fixed block 15, during the use, limiting plate 21 limits slide bar 16's displacement, avoids slide bar 16 to break away from fixed block 15, and spacing spring 22 cushions protection limiting plate 21 and fixed block 15, prevents to collide.

The implementation mode is specifically as follows: during the use, carry out welding process, organism 9 moves down, organism 9 drives two fixed blocks 15 and moves down, two fixed blocks 15 promote pressure spring 18 and promote the clamp plate 17 that two slide bars 16 bottoms to move down, the top of welding workpiece is pushed down to the cushion 20 of clamp plate 17 bottom, along with organism 9 constantly moves down, pressure spring 18 pressure increases gradually, pressure spring 18 applies the pressure increase for clamp plate 17, compress tightly welding workpiece, the effect of compressing tightly in advance has been played through setting up above structure, utilize pressure spring 18 elasticity potential energy constantly to increase, elasticity pressure promotes clamp plate 17 and compresses tightly the work piece, it compresses tightly the function in advance to have, prevent in the welding process, the welding workpiece displacement leads to welding askew, thereby improve welding precision, improve welding quality.

The working principle of the utility model is as follows:

with reference to the attached drawings 1-2 and 4 in the specification, the welding head 10 is protected in a buffering mode through the arrangement of the structure, the buffer spring 13 is arranged on the surface of the telescopic rod 11 and used for buffering the impact pressure of the welding head 10 and protecting the welding head 10 in a buffering mode, the service life of the welding head is prolonged, the economic cost is reduced, and the laser positioning assembly 26 controls the motor 6 to perform automatic welding positioning.

Furthermore, referring to the attached drawings 1 and 3 of the specification, the structure plays a role of pre-pressing, the elastic potential energy of the pressing spring 18 is continuously increased, the elastic pressure pushes the pressing plate 17 to press the workpiece, the pre-pressing function is achieved, the welding workpiece displacement is prevented from causing welding deflection in the welding process, and therefore welding precision and welding quality are improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spot welder with automatic positioning, includes bottom plate (1), its characterized in that: the laser positioning device is characterized in that side columns (2) are fixedly connected to two sides of the top of the bottom plate (1), the top of one side, opposite to the two side columns (2), of each side column is respectively connected with a protection box (3) and a connecting block (4) in a sliding mode, the bottoms of the protection boxes (3) and the connecting blocks (4) are respectively and fixedly connected with an electric push rod (5), the bottom of the inner wall of each protection box (3) is fixedly connected with a motor (6), one end, located outside the protection box (3), of an output shaft of the motor (6) is fixedly connected with a lead screw (7), the surface of the lead screw (7) is in threaded connection with a movable block (8), the bottom of the movable block (8) is fixedly connected with an organism (9), a welding head (10) is arranged at the bottom of the organism (9) and located in the middle of the welding head (10), a laser positioning assembly (26) is arranged at the bottom of the bottom plate (1) and one side, opposite to the two electric push rods (5), is respectively and fixedly connected with a telescopic rod (11), two the top fixedly connected with welding bench (12) of telescopic link (11), two the surface of telescopic link (11) all is equipped with buffer spring (13).

2. A spot welder with automatic positioning according to claim 1, characterized in that: two spout (23) have all been seted up at the top of the relative one side of side post (2), two one side sliding connection that the surface of spout (23) inner wall all carried on the back respectively with guard box (3) and connecting block (4) through slider (24), two the bottom of electric putter (5) and the top fixed connection of bottom plate (1), two electric putter (5) are located two relative one sides of side post (2) respectively.

3. A spot welder with automatic positioning according to claim 1, characterized in that: the output shaft of motor (6) runs through guard box (3) and extends to the guard box (3) outside, guide arm (25) have been run through at the top of movable block (8), the right-hand member of guide arm (25) and the left top fixed connection of guard box (3), the left end of guide arm (25) and the top fixed connection on connecting block (4) right side, two buffer spring (13) are located the both sides between weld table (12) and bottom plate (1) respectively, the top of bottom plate (1) just is located equal fixedly connected with stopper (14) in two relative one sides of telescopic link (11).

4. A spot welder with automatic positioning according to claim 1, characterized in that: the equal fixedly connected with fixed block in bottom (15) of organism (9) both sides, two slide bar (16), two all run through on fixed block (15) slide bar (16) have been crossed the bottom fixedly connected with clamp plate (17) of slide bar (16), two the surface of slide bar (16) all is overlapped and is equipped with pressure spring (18), two pressure spring (18) are located respectively between one side that two fixed blocks (15) are relative with clamp plate (17), through-hole (19) have been seted up at the middle part of clamp plate (17).

5. A spot welder with automatic positioning according to claim 4, characterized in that: the bottom fixedly connected with of clamp plate (17) has a plurality of cushion (20), cushion (20) adopt the silica gel material.

6. A spot welder with automatic positioning according to claim 4, characterized in that: two equal fixedly connected with limiting plate (21) in top of slide bar (16), two the surperficial top of slide bar (16) all is equipped with spacing spring (22), two spacing spring (22) are located respectively between two limiting plate (21) and two fixed block (15) relative one sides.