Zinc breaking structure used before welding of galvanized sheet

Abstract

The utility model discloses a zinc breaking structure used before galvanized sheet welding, and relates to the field of welding equipment, the zinc breaking structure comprises a mounting bottom plate, a mounting seat is arranged at the center of the top of the mounting bottom plate, a bottom die used for placing a galvanized sheet is arranged in the middle of the mounting seat, and zinc breaking shells are arranged on the top of the mounting bottom plate and located on the two sides of the mounting seat; fixed connection plates are fixedly arranged on the opposite sides of the two zinc breaking shells, friction rods used for breaking a zinc layer are rotationally arranged at the two ends of the sides, close to the bottom die, of the two fixed connection plates, the opposite sides of every two friction rods movably penetrate through the fixed connection plates to be connected with gears, and racks used for transmission are connected between every two gears in an engaged mode; clamping plates are fixedly arranged at the positions, located on the two adjacent sides of the zinc breaking shell, of the top of the mounting base, tooth-shaped clamping plates are arranged on the surfaces of the sides, close to the bottom die, of the two clamping plates in an inserted mode, and a lower pressing plate is connected to the tops of the two tooth-shaped clamping plates. Welding points are thinned through physical friction, a zinc layer on the surface of the workpiece is effectively removed, and welding operation of the workpiece is facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the field of welding equipment, in particular to a zinc layer removing structure for galvanized sheet before welding. BACKGROUND

[0002] The galvanized sheet is a kind of sheet material with a layer of zinc plated on the surface of the steel sheet, and has good corrosion resistance and aesthetic appearance, so that the galvanized sheet is widely used in the fields of building, automobile manufacturing, refrigeration box, ventilation and heating facilities and furniture manufacturing, etc. However, when the galvanized sheet is welded, the melting and evaporation of zinc will cause defects such as spatter, porosity and crack in the weld, thereby reducing the strength and corrosion resistance of the weld, and affecting the safety and service life of the whole structure. Generally, the zinc layer of the welding area needs to be removed before welding to reduce the influence of the melting and evaporation of zinc on the weld quality and welding process during welding. The existing zinc layer removing structure usually uses electricity to preliminarily melt the zinc layer, and then cooperates with the welding point structure for welding. However, different materials have different electrical conductivity, so that the zinc layer is not completely melted, which is easy to cause the workpiece to be unwelded. CONTENT OF THE UTILITY MODEL

[0003] In order to improve the problem that the conventional zinc layer removing structure is not thorough in removing the zinc layer and is easy to cause the workpiece to be unwelded, the application provides a zinc layer removing structure for galvanized sheet before welding.

[0004] The zinc layer removing structure for galvanized sheet before welding provided by the application adopts the following technical scheme:

[0005] The zinc layer removing structure for galvanized sheet before welding comprises a mounting bottom plate, a plurality of fixing seats are arranged on the top of the mounting bottom plate, a pressing top cover is connected to the top of each of the fixing seats, a mounting seat is arranged at the center of the top of the mounting bottom plate, a bottom die for placing the galvanized sheet is arranged in the middle of the mounting seat, a zinc layer removing shell is arranged on each side of the mounting seat at the top of the mounting bottom plate, a fixed connecting plate is fixedly arranged on each side of the zinc layer removing shell, a friction rod for removing the zinc layer is rotatably arranged on each end of the side of the fixed connecting plate close to the bottom die, a gear is movably penetrated through the fixed connecting plate and connected to each side of the friction rods opposite to each other, and a rack for transmission is meshingly connected between the gears.

[0006] A clamping plate is fixedly arranged on each side of the mounting seat adjacent to the zinc layer removing shell at the top, a toothed clamping plate is insertedly arranged on the surface of each side of the clamping plate close to the bottom die, a pressing plate is connected and arranged on the top of each of the toothed clamping plates, and the top of the pressing plate is in lifting connection with the bottom of the pressing top cover.

[0007] By adopting the technical scheme, the workpiece placed in the bottom mold is clamped by the toothed clamping plate, and the upper-to-lower pressure of the pressing top cover is matched, so that the fixing effect is ensured, and the friction rod is in abutment with the side surface of the workpiece and rotates, so that the friction rod polishes the surface of the workpiece, thereby effectively removing the zinc layer on the surface of the workpiece and preventing the occurrence of welding separation in the subsequent welding process.

[0008] Preferably, a concave workpiece is movably inserted in the bottom mold, and a top mold is movably inserted in the concave interior of the workpiece, and the top of the top mold is in abutment with the bottom surface of the pressing plate.

[0009] By adopting the technical scheme, the workpiece is inserted in the bottom mold, and the top of the workpiece is inserted by the inner wall of the top mold, so that the workpiece is clamped and fixed from the upper and lower ends, thereby improving stability and facilitating the zinc breaking process.

[0010] Preferably, two sides of the zinc breaking shell facing the bottom mold are each provided with a rotating groove, a longitudinal groove is formed in the groove bottom of the rotating groove in the zinc breaking shell, the longitudinal groove penetrates through the top of the zinc breaking shell and is in communication with the outside, a connecting plate is fixedly arranged on the top of the installation bottom plate on the opposite side of the two zinc breaking shells, and the two connecting plates are in one-to-one fixed connection with the two zinc breaking shells.

[0011] By adopting the technical scheme, the rotating groove is provided for reserving installation space for the subsequent gear and rack, and the longitudinal groove is in communication with the rotating groove and the outside, thereby reserving connection space for the interaction of the subsequent pressure block, and the two connecting plates are connected with the zinc breaking shell, thereby providing a mounting fulcrum for the rotation of the gear.

[0012] Preferably, the two ends of the rotating groove are in rotary connection with the gear, and the rotation shafts of the four gears are in rotary connection with the fixed connection plates.

[0013] By adopting the technical scheme, the gear drives the friction rod to rotate back and forth, so that the friction rod rubs against the workpiece, thereby breaking the zinc layer.

[0014] Preferably, the top of the installation bottom plate is movably connected with an extension rod at the position of the two zinc breaking shells, the top of the extension rod is movably penetrated through the zinc breaking shell and located in the rotating groove, and the penetration end of the extension rod is fixedly connected with the bottom of the rack.

[0015] By adopting the technical scheme, the extension rod drives the rack to move up and down back and forth, and the movement of the rack drives the two gears to rotate back and forth, thereby synchronously driving the friction rod to rotate by the gear, thereby transmitting power for the movement of the friction rod.

[0016] Preferably, the two rack tops are fixed with torsion springs, the two torsion springs are inserted through the longitudinal slots on the zinc breaking shell top, the inserted ends of the two torsion springs are fixed with force receiving blocks, and the opposite sides of the two force receiving blocks are fixed with the side surface of the pressing plate.

[0017] By adopting the above technical scheme, the torsion spring connects the force receiving block and the rack, so that when the force receiving block moves downward, a pushing force is generated on the spring to assist the movement of the rack.

[0018] Preferably, the bottom of the pressing top cover is fixed with limiting blocks at the positions of the two zinc breaking shells, and the limiting blocks are movably inserted into the surface of the force receiving block.

[0019] By adopting the above technical scheme, the groove of the limiting block is movably inserted into the force receiving block, and when the pressing plate drives the force receiving block to move, the force receiving block is limited by the limiting block and translates along the groove of the limiting block, thereby improving the stability.

[0020] Preferably, the top of the mounting seat is fixed with a plurality of guide seats around the bottom die, a connecting rod is fixed in each of the guide seats, and the connecting rods are movably inserted through the top of the pressing plate and fixed with the pressing top cover.

[0021] By adopting the above technical scheme, the mounting seat is integrally fixed with the pressing top cover through the guide seats, and the connecting rods in the four guide seats are inserted through the pressing plate, so that the pressing plate moves up and down along the surface of the connecting rods to form a limiting effect.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The pressing plate is used to press the top die to apply pressure, and the tooth-shaped clamping plate is fixed in the clamping plate to abut the side surface of the workpiece, so that the workpiece simultaneously receives longitudinal and transverse pressure, preventing the workpiece from vibrating during zinc breaking, and the telescopic rod moves back and forth along the rack to drive the friction rod to rotate back and forth, thereby forming a friction force by abutting the surface of the workpiece, effectively removing the zinc layer on the surface of the workpiece through physical friction, preventing the residue of the zinc layer, and avoiding the problem of welding separation during welding. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the present application;

[0025] Figure 2 is a top view of the present application;

[0026] Figure 3 is an exploded view of the present application;

[0027] Figure 4 is a perspective side view of the present application;

[0028] Figure 5 It is the internal structure diagram of the zinc breaking shell of the application;

[0029] Figure 6 It is the gear connection diagram of the application.

[0030] The figure mark: 1, the installation bottom plate; 2, the fixed seat; 3, the lower pressing top cover; 4, the mounting seat; 5, the guide seat; 6, the clamping plate; 7, the toothed clamping plate; 8, the zinc breaking shell; 9, the connecting plate; 10, the bottom die; 11, the workpiece; 12, the top die; 13, the lower pressing plate; 14, the limiting block; 15, the stress block; 16, the rotating groove; 17, the longitudinal groove; 18, the fixed plate; 19, the telescopic rod; 20, the friction rod; 21, the gear; 22, the rack; 23, the torsional spring. DETAILED DESCRIPTION

[0031] The following will be combined with the Figures 1-6 The application is further explained.

[0032] The embodiment of the application discloses a zinc breaking structure before galvanized sheet welding.

[0033] Refer to Figure 1 , Figure 2 , Figure 3 A zinc breaking structure before galvanized sheet welding, comprising an installation bottom plate 1, four fixed seats 2 are fixedly arranged around the upper end face of the installation bottom plate 1, a connecting column is fixedly connected to the end of each of the four fixed seats 2 away from the installation bottom plate 1, and a lower pressing top cover 3 is fixedly arranged on the top of the four connecting columns, a lifting driving device is fixedly arranged on the top of the lower pressing top cover 3 through screws, and the telescopic end of the lifting driving device is movably connected with a lower pressing plate 13 penetrating through the lower end face of the lower pressing top cover 3, and a mounting seat 4 is protrusively arranged on the upper end face of the installation bottom plate 1 at the position of the lower pressing plate 13, four guide seats 5 are fixedly arranged around the upper end face of the mounting seat 4, and a sliding rod is fixedly arranged in each of the guide seats 5, and the four sliding rods are movably penetrated through the upper end face of the lower pressing plate 13 and fixedly connected with the lower end face of the lower pressing top cover 3.

[0034] It should be noted that toothed through grooves are formed on both sides of the surface of the lower pressing plate 13, and toothed clamping plates 7 are fixedly arranged in the through grooves, the bottoms of the two toothed clamping plates 7 are protrusively arranged outside the through grooves of the lower pressing plate 13, and the thickness of the toothed clamping plates 7 is at least twice the thickness of the lower pressing plate 13, so that a lower pressing space is reserved.

[0035] The bottom of the fixing seat 2 is fixedly connected with the mounting bottom plate 1, the connecting column in the fixing seat 2 is fixedly connected with the lower pressing cover 3, so that the mounting bottom plate 1 and the lower pressing cover 3 form an integral fixing, meanwhile, the lower pressing plate 13 is located at the bottom of the lower pressing cover 3, the lower pressing plate 13 is pushed by the lifting driving device to move longitudinally, and the slide rods in the four guide seats 5 are respectively inserted through the surface of the lower pressing plate 13 and fixedly connected with the lower pressing cover 3, so that the lower pressing plate 13 is limited by the slide rods when moving, preventing the lower pressing plate 13 from deviating during movement, and facilitating subsequent positioning operation.

[0036] Referring to Figure 2 , Figure 3 , Figure 4 , the recess is formed in the upper end surface of the mounting seat 4 between the four guide seats 5, and the bottom die 10 is fixedly arranged in the recess, the bottom die 10 is concave as a whole, and the concave opening is upward, the workpiece 11 for breaking zinc is movably inserted into the concave opening of the bottom die 10, the outer surface of the workpiece 11 abuts against the inner wall of the concave opening of the bottom die 10 and is also concave, after the workpiece 11 is inserted, the top die 12 is further inserted into the concave opening of the workpiece 11, and the outer surface of the top die 12 abuts against the inner wall of the concave opening of the workpiece 11, the clamping plates 6 are fixedly arranged on the upper end surface of the mounting seat 4 at the positions of the two tooth-shaped clamping plates 7, and the tooth surfaces are formed on the sides of the two clamping plates 6 facing the bottom die 10, and the tooth surfaces of the bottom die 10 are embedded with the tooth-shaped clamping plates 7.

[0037] It should be noted that the connecting plates 9 are fixedly arranged on the upper end surface of the mounting bottom plate 1 at the two sides of the mounting seat 4, the horizontal plates are fixedly arranged on the two side surfaces of the two connecting plates 9, and the zinc breaking shell 8 is movably inserted between the two horizontal plates, the zinc breaking shell 8 is T-shaped as a whole, and the T-shaped protrusions of the zinc breaking shell 8 are clamped with the two horizontal plates to form support.

[0038] The workpiece 11 is inserted into the bottom die 10 to form preliminary fixation, then the top die 12 is inserted into the workpiece 11, and the lower pressing plate 13 moves downward to apply pressure to the top of the top die 12, so that the top die 12 presses the inner surface of the workpiece 11, with the movement of the lower pressing plate 13, the tooth-shaped clamping plate 7 is pressed into the tooth surface of the clamping plate 6, with the pressing of the tooth-shaped clamping plate 7, the two sides of the outer surface of the workpiece 11 are abutted, and the workpiece 11 is fixed in multiple directions longitudinally and transversely as a whole, preventing the workpiece 11 from vibrating during breaking zinc, so as to affect the breaking zinc effect.

[0039] Referring to Figure 3 , Figure 5 , Figure 6, two broken zinc shell 8 relative to one side surface are provided with rotating groove 16, rotating groove 16 channel is composed of two circular groove clamping strip groove, gear 21 is rotatably connected in two circular grooves, rack 22 is movably arranged in strip groove, and rack 22 is engaged with two gears 21, and longitudinal groove 17 is formed in the middle of strip groove of rotating groove 16, and longitudinal groove 17 penetrates through the top of broken zinc shell 8 and communicates with the outside, and the notch in the top of two broken zinc shell 8 communicates with longitudinal groove 17, and the force block 15 is inserted and arranged in the notch, the top of two force blocks 15 is fixedly connected with the outer surface of the lower pressing plate 13, and the limit block 14 is fixedly arranged at the position of two force blocks 15, and the recess is formed in two limit blocks 14, and the inner wall of the recess is inserted with two force blocks 15 to form a limit.

[0040] It should be noted that the bottom of two force blocks 15 is fixedly provided with torsion spring 23 penetrating longitudinal groove 17 and fixedly connected with rack 22, the position of two broken zinc shell 8 relative to one side of rotating groove 16 is fixedly provided with fixed plate 18, the side surface of fixed plate 18 facing rotating groove 16 is rotatably connected with two gears 21, and the rack 22 is clamped and fixed, at the same time, the bottom of two broken zinc shell 8 arranged on the upper end surface of mounting plate 1 is provided with telescopic rod 19, the bottom of telescopic rod 19 is connected with driving device, the top of telescopic rod 19 is movably penetrated through broken zinc shell 8 and fixedly connected with the bottom of rack 22, the opposite side surface of two fixed plates 18 is connected with two friction rods 20, four friction rods 20 are penetrated through two fixed plates 18 respectively, so as to be fixedly connected with the rotating rods of four gears 21 one by one, and the opposite side of four friction rods 20 abuts against the side surface of workpiece 11, and the abutting surface of four friction rods 20 is provided with a plurality of protrusions.

[0041] Telescopic rod 19 reciprocatingly extends and contracts to drive rack 22 to move up and down synchronously, rack 22 moves up and down to drive two gears 21 to reciprocatingly rotate, two gears 21 reciprocatingly rotate to drive friction rod 20 to rotate synchronously, so that the protrusions at the front end of friction rod 20 rub against the outer surface of workpiece 11, and at the same time, friction rod 20 is in reciprocating rotation state, so as to prevent friction rod 20 from forming too large rotating force to damage workpiece 11 itself, friction rod 20 rubs against workpiece 11 to remove the zinc layer on the surface of workpiece 11, and when the lower pressing plate 13 descends, the force block 15 descends along the recess of limit block 14 synchronously, so that the force block 15 applies pressure to torsion spring 23, thereby assisting the driving of rack 22, and improving the driving force of rack 22.

[0042] The implementation principle of the zinc breaking structure before the galvanized sheet welding of the embodiment of the application is as follows: when the device is used, the workpiece 11 needs to be placed in the groove of the bottom die 10, and then the top die 12 is inserted into the groove of the workpiece 11 to form a preliminary fixation, and then the personnel make the lifting driving device controlled by the microcomputer to drive the lower pressing plate 13 to descend, when the lower end surface of the lower pressing plate 13 abuts against the top of the top die 12, the lifting driving device stops running, at this time, the lower pressing plate 13 exerts a downward pressure on the top die 12, so as to keep the longitudinal fixation of the workpiece 11, and at the same time, the lower pressing plate 13 drives the toothed clamping plate 7 to descend synchronously in the descending process, when the toothed clamping plate 7 is inserted into the tooth groove of the clamping plate 6, the two toothed clamping plates 7 on the opposite sides abut against the side surface of the workpiece 11, so as to form the transverse fixation of the workpiece 11.

[0043] When the fixation of the workpiece 11 is completed, the personnel make the driving device controlled by the microcomputer to drive the telescopic rod 19 to repeatedly move up and down, the telescopic rod 19 repeatedly moves to drive the rack 22 to move synchronously, so as to make the rack 22 pull and pull the two gears 21 back and forth, so that the two gears 21 rotate back and forth, the gear 21 drives the friction rod 20 to rotate synchronously, at this time, the convex surface of the friction rod 20 abuts against the side surface of the workpiece 11, with the back and forth rotation of the friction rod 20, the convex surface of the friction rod 20 rubs the side surface of the workpiece 11, so as to grind off the zinc layer on the surface of the workpiece 11, the zinc breaking effect is obvious, the zinc layer is prevented from being left, and the subsequent welding process is facilitated.

[0044] The above is only the optional embodiment of the present disclosure, and is not used to limit the present disclosure, for the person skilled in the art, the present disclosure can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A zinc-breaking structure for galvanized sheet before welding, characterized by: The invention comprises a mounting base (1), wherein a plurality of fixing seats (2) are provided on the top of the mounting base (1), and a downward pressure top cover (3) is connected to the top of the plurality of fixing seats (2), and a mounting base (4) is provided at the center of the top of the mounting base (1), and a bottom mold (10) for placing a galvanized sheet is provided in the middle of the mounting base (4), and zinc-breaking shells (8) are provided on both sides of the mounting base (4) on the top of the mounting base (1), and fixing plates (18) are fixed on opposite sides of the two zinc-breaking shells (8), and friction rods (20) for breaking the zinc layer are rotatably provided at both ends of the side of the two fixing plates (18) close to the bottom mold (10), and the four friction rods (20) are movable on opposite sides of each other and penetrate the fixing plates (18) and are connected to gears (21), and the four gears (21) are meshed with racks (22) for transmission. The top of the mounting seat (4) is located on adjacent two sides of the zinc-breaking shell (8), and clamping plates (6) are fixed thereon. The surfaces of the two clamping plates (6) close to the bottom mold (10) are both plugged with toothed clamping plates (7). The tops of the two toothed clamping plates (7) are connected with a lower pressing plate (13), and the top of the lower pressing plate (13) is connected to the bottom of the lower pressing top cover (3) in a lifting manner.

2. The zinc-breaking structure for galvanized sheet before welding according to claim 1, characterized in that: A concave workpiece (11) is movably inserted into the bottom mold (10), and a top mold (12) is movably inserted into the concave interior of the workpiece (11), and the top of the top mold (12) abuts against the bottom surface of the lower pressing plate (13).

3. The zinc-breaking structure before welding of galvanized sheet according to claim 1, characterized in that: The two zinc-breaking shells (8) are provided with a rotation groove (16) on one side facing the bottom mold (10), and a longitudinal groove (17) is provided at the bottom of the rotation groove (16) in the zinc-breaking shell (8). The longitudinal groove (17) passes through the top of the zinc-breaking shell (8) and is connected to the outside. The top of the installation base plate (1) is located on the opposite side of the two zinc-breaking shells (8) and is fixed with a connecting plate (9). The two connecting plates (9) are fixedly connected to the two zinc-breaking shells (8) one by one.

4. The zinc-breaking structure before welding of galvanized sheet according to claim 3, characterized in that: Both ends of the two rotating grooves (16) are rotationally connected to the gears (21), and one end of the rotating shaft of the four gears (21) away from the rotating groove (16) is rotationally connected to the fixing plate (18).

5. The zinc-breaking structure before welding of galvanized sheet according to claim 4, characterized in that: The top of the mounting base plate (1) is located at the position of the two zinc-breaking shells (8) and is movably connected to a telescopic rod (19). The tops of the two telescopic rods (19) movably penetrate the zinc-breaking shells (8) and are located in the rotating groove (16). The penetrating ends of the two telescopic rods (19) are fixed to the bottom of the rack (22).

6. The zinc-breaking structure before welding of galvanized sheet according to claim 5, characterized in that: The tops of the two racks (22) are fixed with torsion springs (23), and the two torsion springs (23) are inserted through the longitudinal groove (17) and are located at the top of the zinc-breaking shell (8). The inserted ends of the two torsion springs (23) are fixed with force blocks (15), and the opposite sides of the two force blocks (15) are fixed to the side surface of the lower pressure plate (13).

7. The zinc-breaking structure before welding of galvanized sheet according to claim 1, characterized in that: The bottom of the downward pressure top cover (3) is located at the position of the two zinc-breaking shells (8) and is fixed with a limit block (14). The two limit blocks (14) are movably plugged into the surface of the force-bearing block (15).

8. The zinc-breaking structure before welding of galvanized sheet according to claim 1, characterized in that: A plurality of guide seats (5) are fixedly provided on the top of the mounting seat (4) around the bottom mold (10), and a connecting rod is fixedly provided in each of the guide seats (5). The connecting rods are movable through the top of the lower pressing plate (13) and are fixedly connected to the lower pressing cover (3).

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