CN113059258B - Hinge welding device with welding mechanism and positioning device - Google Patents

Hinge welding device with welding mechanism and positioning device Download PDF

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Publication number
CN113059258B
CN113059258B CN202110362460.9A CN202110362460A CN113059258B CN 113059258 B CN113059258 B CN 113059258B CN 202110362460 A CN202110362460 A CN 202110362460A CN 113059258 B CN113059258 B CN 113059258B
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China
Prior art keywords
positioning
shaft sleeve
base plate
shaft
substrate
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CN113059258A (en
Inventor
石红信
赵培峰
邱然锋
任柯旭
张肖飞
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Henan University of Science and Technology
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Henan University of Science and Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/36Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/002Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps

Abstract

A hinge welding device having a welding mechanism and a positioning device for positioning a base plate and a sleeve, the welding mechanism then welding the sleeve to a corresponding boss of the base plate. The positioning device comprises a substrate positioning seat and a shaft sleeve positioning seat. The base plate positioning seat is provided with a height positioning structure and a transverse positioning structure, wherein the height positioning structure is provided with a height positioning surface which is used for positioning the base plate to enable the base plate to be in butt joint with the shaft sleeve and has a set height, and the transverse positioning structure is used for being matched with at least one side surface of the base plate in the width direction to position the base plate until each convex part of the base plate is aligned with the corresponding shaft sleeve. The shaft sleeve positioning seat is matched with the substrate positioning seat to relatively position the substrate and the shaft sleeve and is provided with: a positioning groove or a positioning shaft for positioning the shaft sleeve to be welded to a set position so as to enable the two shaft sleeves to be coaxial; and the axial positioning structure is used for positioning the distance between the two shaft sleeves and is provided with two positioning surfaces which are parallel and spaced and are respectively positioned with the opposite end surfaces of the two shaft sleeves.

Description

Hinge welding device with welding mechanism and positioning device
The application is a divisional application of Chinese patent application with the application number of 201910210086.3 and the title of hinge welding positioning device and hinge welding device.
Technical Field
The invention relates to a hinge welding positioning device and a hinge welding device.
Background
In the prior art, the door and the vehicle body are usually mounted through a hinge. The structure of hinge is as shown in fig. 1, including base plate 11 and two axle sleeves 12 that are located base plate 11 tip, base plate 11 includes the board body, and one side of board body is outwards outstanding side by side along the face and is had two convex parts 13, and two axle sleeves 12 weld respectively on the corresponding convex part 13 of base plate, and the axis collineation of two axle sleeves 12, and the interval between two axle sleeves 12 will satisfy the axle sleeve that can supply the hinge of adaptation and insert and supply the round pin axle to wear to adorn and constitute hinge structure. In the subsequent welding and positioning process, the distance and the coaxiality between the shaft sleeves 12 need to meet the related design requirements to be used normally. However, since manual welding is difficult to satisfy, it is necessary to position the boss 12 and the base plate 11 by a positioning device at the time of welding.
The utility model discloses a hinge welding position device, as the chinese utility model patent of grant publication No. CN205904614U, includes base, location axle and locating plate. The positioning plate is arranged on one side of the base and used for positioning the base plate to form a base plate positioning seat; the location axle is the stepped shaft that the symmetry set up, and the axle sleeve cover can make axle sleeve axis and location axle axis collineation after the path axle head of location axle goes up, has guaranteed the axiality of two axle sleeves, and the step face of stepped shaft can fix a position the interval of two axle sleeves, and the location axle constitutes the axle sleeve positioning seat. This hinge welding position device needs fix a position and weld axle sleeve and base plate through manual mode, can't realize automatic streamlined production.
Chinese utility model patent with grant bulletin number CN205057351U discloses a door hinge continuous welding device, including the frame, be provided with in the frame and be used for placing the mould of putting of door hinge, put the mould and include the support, support one side is provided with the pin. The welding machine is characterized in that a guide rail assembly is further arranged on the rack, a welding gun capable of moving on the guide rail assembly is arranged on the guide rail assembly, and a control system is further arranged on the rack. During welding, a door hinge sleeve (namely a shaft sleeve) needs to be placed on the base, one end of the door hinge body (namely the base plate) is placed on the door hinge sleeve, the other end of the door hinge body is blocked and leaned on the stop lever, and then the welding gun sequentially welds the door hinge on the placing mold. The door hinge continuous welding device needs to manually place the door hinge sleeve and the door hinge body on the placing mould before welding, the production efficiency is low, and the door hinge sleeve is manually placed on the door hinge sleeve, and the placing mould is not provided with a positioning structure for positioning the door hinge body and the door hinge sleeve, so that the position requirement between the door hinge body and the door hinge sleeve is difficult to ensure.
Disclosure of Invention
The invention aims to provide a hinge welding device which can improve the production efficiency of a hinge while ensuring the welding precision of a shaft sleeve and a base plate; the invention also aims to provide a hinge welding and positioning device which is used for positioning the base plate and the shaft sleeve.
In order to achieve the purpose, the technical scheme of the hinge welding and positioning device is as follows: the hinge welding positioning device comprises a substrate positioning seat and a shaft sleeve positioning seat which is matched with the substrate positioning seat to relatively position a substrate and a shaft sleeve group, the welding positioning device is provided with a set reference positioning plane and a reference axis which is parallel to the set reference positioning plane, the shaft sleeve positioning seat is provided with a positioning groove or a positioning shaft which is used for positioning the shaft sleeve to be welded to a set position so that the two shaft sleeves are coaxial, and the respective axes of the positioning groove or the positioning shaft are parallel to or coincident with the reference axis; the base plate positioning seat is provided with a height positioning structure which is used for positioning and matching with the base plate, the height positioning structure is provided with a height positioning surface which is used for positioning the base plate to a set height which is in butt joint with the shaft sleeve by a set distance between the base plate and a set reference positioning plane, and the base plate positioning seat is also provided with a transverse positioning structure which is used for matching with at least one side surface of the base plate in the width direction to position the base plate until each convex part of the base plate is aligned with the corresponding shaft sleeve; the welding positioning device further comprises a substrate feeding mechanism and a shaft sleeve feeding mechanism, wherein the output end of the shaft sleeve feeding mechanism is provided with a shaft sleeve driving mechanism used for pushing each shaft sleeve to the position where the opposite end face is attached to the positioning face, and the output end of the substrate feeding mechanism is provided with a substrate driving mechanism used for applying force to the substrate to enable the substrate to be in pressure contact with the shaft sleeve.
The invention has the beneficial effects that: according to the hinge welding positioning device, the shaft sleeve is conveyed to a set position through the shaft sleeve feeding mechanism to be matched with the corresponding positioning groove or positioning shaft, and the coaxiality of the two shaft sleeves can be guaranteed after the shaft sleeve is matched with the positioning groove or the positioning shaft; then the shaft sleeve driving mechanism pushes the shaft sleeves along the axial direction until the end faces opposite to the two shaft sleeves are attached to the two positioning faces on the axial positioning structure between the two shaft sleeves, and the distance between the two shaft sleeves can be ensured through the two positioning faces. The height of the base plate can be positioned through the height positioning surface, so that the base plate can be correctly butted with the shaft sleeve in the height direction, the base plate can be accurately butted with the shaft sleeve in the width direction through the matching of the transverse positioning structure and the side surface of the base plate, and then the base plate is forced to be in contact with the shaft sleeve through the base plate driving mechanism. The hinge positioning mechanism can move the shaft sleeve and the base plate through the feeding and driving mechanism and position the shaft sleeve and the base plate through the positioning structure, so that the feeding and positioning automation is realized, the welding precision of the shaft sleeve and the base plate is ensured, and the production efficiency of the hinge is improved.
Furthermore, the shaft sleeve positioning seat is provided with two positioning grooves, the two positioning grooves are coaxially arranged at intervals and are respectively used for being in positioning fit with two corresponding shaft sleeves to be welded, and the axial positioning structure is arranged between the two positioning grooves. The locating slot is simple in structure, convenient to set and stable in matching with the shaft sleeve.
Furthermore, the axial positioning structure is a limiting block arranged between the two positioning grooves in a blocking mode, and two end faces, back to each other, of the limiting block in the axial direction of the reference axis form the positioning faces. Carry out limit structure simple to two constant head tanks through the stopper, can correspond the hinge of different models through changing different stoppers.
Further, the welding positioning device further comprises a shaft sleeve fixing structure, the shaft sleeve fixing structure comprises a pressing piece used for pressing the shaft sleeve in the positioning groove, and an avoiding space for the substrate to stretch into and press and contact with the shaft sleeve is formed between the pressing piece and the groove edge of the positioning groove. Increase and compress tightly the piece and fix the axle sleeve and can prevent that the axle sleeve atress from removing when welding from causing the welding position inaccurate.
Furthermore, the welding positioning device also comprises a support shaft which is used for being arranged in the inner hole of each shaft sleeve in a penetrating mode, and the support shaft is an insulating shaft or the peripheral surface of the support shaft is provided with an insulating layer. Increase the back shaft and support in the hole of axle sleeve and can prevent that the axle sleeve atress warp.
Further, the shaft sleeve positioning seat is further provided with a feeding baffle plate which is used for blocking the output end of the shaft sleeve feeding mechanism and is positioned on one side of the positioning groove, and the feeding baffle plate is provided with a blocking surface which is used for being matched with the shaft sleeve in a blocking mode and enabling the axis of the shaft sleeve to be coincident with the reference axis. The shaft sleeve on the shaft sleeve feeding mechanism can be blocked through the feeding baffle plate, so that the shaft sleeve stops moving when the axis of the shaft sleeve is coincident with the reference axis, and the feeding baffle plate is simple in structure and accurate in positioning.
Further, the shaft sleeve driving mechanism comprises shaft sleeve push rods which are arranged on two opposite sides of the shaft sleeve feeding mechanism and used for being matched with corresponding shaft sleeves in a pushing mode. The push rod has a simple structure, the pushing distance is convenient to control, the shaft sleeve is pushed by the push rod to enter the corresponding positioning groove or the corresponding positioning shaft, and the end face of the shaft sleeve is attached to the positioning surface.
Furthermore, one side of the output end of the substrate feeding mechanism on the substrate positioning seat is provided with a positioning slide extending towards the shaft sleeve positioning seat, the bottom plate of the positioning slide forms the height positioning structure, the upper plate surface of the bottom plate forms the height positioning surface, the transverse positioning structure is a baffle plate arranged on one side of the positioning slide, which is back to the substrate feeding mechanism, a material pushing plate is arranged on the substrate feeding mechanism, the material pushing plate can push a corresponding substrate to the positioning slide along the conveying direction perpendicular to the substrate feeding mechanism, and the substrate driving mechanism comprises a substrate pushing rod which moves in a reciprocating manner along the direction of the positioning slide. The base plate is conveyed to the output end by the base plate feeding mechanism, then is pushed to the positioning slide way by the material pushing plate and is transversely positioned by the material blocking plate, the height of the base plate is positioned by the height of the bottom plate of the positioning slide way, and finally the base plate is pushed to be in contact with the shaft sleeve by the base plate driving mechanism; the base plate can be positioned in height and transverse direction through the material pushing plate, the positioning slide way and the base plate driving mechanism, and orderly welding can be realized by stopping one gear at a time.
In order to achieve the purpose, the technical scheme of the hinge welding device is as follows: a hinge welding device, wherein the hinge includes two axle sleeves and has the base plate of two convex parts, hinge welding device includes pay-off and positioner and welding mechanism, wherein pay-off and positioner are used for conveying and location base plate and axle sleeve, and welding mechanism welds the corresponding convex part of base plate with the axle sleeve afterwards, and wherein pay-off and positioner includes:
the base plate positioning seat is provided with a height positioning structure and a transverse positioning structure, wherein the height positioning structure is provided with a height positioning surface which is used for positioning the base plate so that the base plate is in butt joint with the shaft sleeve and has a set height, and the transverse positioning structure is used for being matched with at least one side surface of the base plate in the width direction so as to position the base plate until each convex part of the base plate is aligned with the corresponding shaft sleeve;
the axle sleeve positioning seat cooperates with the base plate positioning seat and fixes a position the base plate and the axle sleeve relatively and is equipped with: a positioning groove or a positioning shaft for positioning the shaft sleeve to be welded to a set position so as to enable the two shaft sleeves to be coaxial; the axial positioning structure is used for positioning the distance between the two shaft sleeves and is provided with two positioning surfaces which are parallel and spaced and are respectively positioned with the opposite end surfaces of the two shaft sleeves;
the output end of the shaft sleeve feeding mechanism is provided with a shaft sleeve driving mechanism for pushing each shaft sleeve to the position where the opposite end surface is attached to the positioning surface; and
and the output end of the substrate feeding mechanism is provided with a substrate driving mechanism for applying force to the substrate to press and contact the substrate and the shaft sleeve.
The beneficial effects of the invention are: the feeding and positioning device firstly conveys the shaft sleeve to a set position through the shaft sleeve feeding mechanism to be matched with the corresponding positioning groove or positioning shaft, and the coaxiality of the two shaft sleeves can be ensured after the shaft sleeve is matched with the positioning groove or the positioning shaft; then the shaft sleeve driving mechanism pushes the shaft sleeves along the axial direction until the end faces opposite to the two shaft sleeves are attached to the two positioning faces on the axial positioning structure between the two shaft sleeves, and the distance between the two shaft sleeves can be ensured through the two positioning faces. The height of the base plate can be positioned through the height positioning surface, so that the base plate can be correctly butted with the shaft sleeve in the height direction, the base plate can be accurately butted with the shaft sleeve in the width direction through the matching of the transverse positioning structure and the side surface of the base plate, and then the base plate is forced to be in contact with the shaft sleeve through the base plate driving mechanism. The hinge positioning mechanism can move the shaft sleeve and the base plate through the feeding and driving mechanism and position the shaft sleeve and the base plate through the positioning structure, so that the feeding and positioning automation is realized, the welding precision of the shaft sleeve and the base plate is ensured, and the production efficiency of the hinge is improved.
Furthermore, the shaft sleeve positioning seat is provided with two positioning grooves, the two positioning grooves are coaxially arranged at intervals and are respectively used for being in positioning fit with two corresponding shaft sleeves to be welded, and the axial positioning structure is arranged between the two positioning grooves. The locating slot is simple in structure, convenient to set and stable in matching with the shaft sleeve.
Furthermore, the axial positioning structure is a limiting block arranged between the two positioning grooves in a blocking mode, and two end faces, back to each other, of the limiting block in the axial direction of the reference axis form the positioning faces. Carry out limit structure simple to two constant head tanks through the stopper, can correspond the hinge of different models through changing different stoppers.
Furthermore, pay-off and positioner still includes axle sleeve fixed knot structure, and axle sleeve fixed knot constructs including being used for compressing tightly the piece that compresses tightly in the constant head tank with the axle sleeve, compress tightly the piece with be formed with between the groove edge of constant head tank and supply the base plate to stretch into and with the dodge space of axle sleeve pressure contact. Increase and compress tightly the piece and fix the axle sleeve and can prevent that the axle sleeve atress from removing and causing the welding position inaccurate when the welding.
Furthermore, the feeding and positioning device also comprises a support shaft which is used for being arranged in the inner hole of each shaft sleeve in a penetrating mode, and the support shaft is an insulating shaft or the peripheral surface of the support shaft is provided with an insulating layer. Increase the back shaft and support in the hole of axle sleeve and can prevent that the axle sleeve atress warp.
Further, the shaft sleeve positioning seat is further provided with a feeding baffle plate which is used for blocking the output end of the shaft sleeve feeding mechanism and is positioned on one side of the positioning groove, and the feeding baffle plate is provided with a blocking surface which is used for being matched with the shaft sleeve in a blocking mode and enabling the axis of the shaft sleeve to be coincident with the reference axis. The shaft sleeve on the shaft sleeve feeding mechanism can be blocked through the feeding baffle plate, so that the shaft sleeve stops moving when the axis of the shaft sleeve is coincident with the reference axis, and the feeding baffle plate is simple in structure and accurate in positioning.
Further, the shaft sleeve driving mechanism comprises shaft sleeve push rods which are arranged on two opposite sides of the shaft sleeve feeding mechanism and used for being matched with the corresponding shaft sleeves in a pushing mode. The push rod has a simple structure, the pushing distance is convenient to control, the shaft sleeve is pushed by the push rod to enter the corresponding positioning groove or the corresponding positioning shaft, and the end face of the shaft sleeve is attached to the positioning surface.
Furthermore, one side of the output end of the substrate feeding mechanism on the substrate positioning seat is provided with a positioning slide extending towards the shaft sleeve positioning seat, the bottom plate of the positioning slide forms the height positioning structure, the upper plate surface of the bottom plate forms the height positioning surface, the transverse positioning structure is a baffle plate arranged on one side of the positioning slide, which is back to the substrate feeding mechanism, a material pushing plate is arranged on the substrate feeding mechanism, the material pushing plate can push a corresponding substrate to the positioning slide along the conveying direction perpendicular to the substrate feeding mechanism, and the substrate driving mechanism comprises a substrate pushing rod which moves in a reciprocating manner along the direction of the positioning slide. The base plate is conveyed to the output end by the base plate feeding mechanism, then pushed to the positioning slide way by the material pushing plate and transversely positioned by the material blocking plate, the height of the base plate is positioned by the height of the bottom plate of the positioning slide way, and finally the base plate driving mechanism pushes the base plate to be in contact with the shaft sleeve; the base plate can be positioned in height and transverse direction through the material pushing plate, the positioning slide way and the base plate driving mechanism, and one-gear one-stop and orderly welding can be realized.
Furthermore, the welding mechanism is a resistance welding machine, the resistance welding machine is provided with a first electrode which is in conductive connection with the shaft sleeve and a second electrode which is in conductive connection with the substrate, the substrate driving mechanism is provided with a push rod, and the second electrode is installed on the push rod. The substrate and the shaft sleeve are welded together simply and conveniently through resistance welding.
Drawings
FIG. 1 is a schematic view of a prior art hinge; FIG. 2 is a schematic structural view of a hinge welding apparatus according to an embodiment 1 of the present invention; FIG. 3 is a schematic structural view of a hinge welding apparatus according to an embodiment 2 of the present invention; description of reference numerals: 1-a hinge; 11-a substrate; 12-a shaft sleeve; 13-a convex part; 2-shaft sleeve positioning seat; 21-shaft sleeve feeding mechanism; 22-a feeding baffle; 23-shaft sleeve supporting block; 24-shaft sleeve pressing block; 25-a limiting block; 26-shaft sleeve push rod; 3-substrate positioning seat; 31-a substrate feeding mechanism; 32-a pusher plate; 33-a substrate stop; 34-a striker plate; 35-a substrate push bar; 41-a second electrode; 42-a first electrode; 201-a limiting block; 202-supporting shaft; 203-avoiding hole.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the embodiment 1 of the hinge welding apparatus of the present invention, as shown in fig. 2, the hinge welding apparatus includes a hinge welding-positioning device and a welding mechanism for welding the boss 12 and the base plate 11 on the hinge welding-positioning device. The hinge welding positioning device comprises a substrate positioning seat 3 used for conveying a substrate 11 and positioning the substrate 11 and a shaft sleeve positioning seat 2 used for conveying a shaft sleeve 12 and positioning the shaft sleeve 12. The hinge welding positioning device is provided with a set reference positioning plane and a reference axis parallel to the set reference positioning plane. In the embodiment, the hinge is welded and positioned on the workbench, and the plane where the upper surface of the workbench is located forms a reference positioning plane. The welding mechanism adopted in the present embodiment is a resistance welding machine, the resistance welding machine is provided with a second electrode 41 and a first electrode 42, the structure of the resistance welding machine is the prior art, and only the second electrode 41 and the first electrode 42 are shown in the figure. In other embodiments, other welding methods such as argon arc welding, brazing and the like which can adopt welding outside a welding gun can be adopted, and in this case, the shaft sleeve and the substrate do not need to be connected with electrodes.
As shown in fig. 2, the shaft sleeve positioning seat 2 includes a shaft sleeve feeding mechanism 21, the shaft sleeve feeding mechanism 21 is a conveyor belt, the shaft sleeve feeding mechanism 21 conveys the shaft sleeve 12 from right to left, and the left end of the shaft sleeve feeding mechanism 21 is an output end. Since two shaft sleeves 12 are provided above the hinge 1 to be welded in this embodiment, two shaft sleeve feeding mechanisms 21 are also provided in parallel at intervals in a horizontal direction perpendicular to the left-right direction. The shaft sleeve feeding mechanism 21 is fixedly provided with a feeding baffle plate 22 at the tail end position, and the side surface of the feeding baffle plate 22 facing the shaft sleeve 12 is matched with the shaft sleeve 12 in a stopping way so as to stop the shaft sleeve 12 at the tail end of the shaft sleeve feeding mechanism 21. The feeding baffle 22 is provided with a travel switch which can be triggered by the shaft sleeve 12, and the specific model of the travel switch is Joseph LXK 3.
The shaft sleeve positioning seat 2 further comprises two shaft sleeve supporting blocks 23 which are located between the output ends of the two shaft sleeve feeding mechanisms 21 and correspond to the shaft sleeve feeding mechanisms 21, positioning grooves are formed in the shaft sleeve supporting blocks 23, the upper surfaces of the two positioning grooves are arc-shaped surfaces, the axes of the two positioning grooves coincide, and the axes of the shaft sleeve 12 coincide with a set reference axis after the shaft sleeve 12 is placed on the positioning grooves. In other embodiments, the reference axis may be any axis parallel to the detent axis. And the outer sides of the two shaft sleeve supporting blocks 23 are also provided with shaft sleeve driving mechanisms, each shaft sleeve driving mechanism comprises a shaft sleeve push rod 26, and the shaft sleeve push rods 26 can reciprocate along the axis direction of the positioning grooves. After the shaft sleeve 12 on the shaft sleeve positioning seat 2 is stopped at the end of the shaft sleeve positioning seat 2 by the feeding baffle 22, the shaft sleeve 12 is just on the motion path of the shaft sleeve push rod 26, and the shaft sleeve 12 can be pushed by the shaft sleeve push rod 26 and moves axially until the shaft sleeve 12 is pushed to the positioning groove. After axle sleeve push rod 26 promoted axle sleeve 12 to the constant head tank, the constant head tank can be fixed a position axle sleeve 12's radial position. In other embodiments, only one positioning groove with a longer extension length may be provided instead of the two positioning grooves, so as to be shared by the two bushings.
In order to control the distance between the two shaft sleeves 12, the shaft sleeve positioning seat 2 further comprises a limiting block 25. In this embodiment, the limiting block 25 is movably disposed between the two shaft sleeves 12 in the up-down direction, the side faces of the limiting block 25 facing the two shaft sleeves 12 are perpendicular to the reference axis, the distance between the two side faces is consistent with the distance between the opposite end faces of the two shaft sleeves 12 on the actual hinge 1, the side faces of the limiting block 25 facing the two shaft sleeves 12 form a positioning face, and the limiting block 25 forms an axial positioning structure. In the process that the two shaft sleeves 12 are pushed to the positioning grooves by the shaft sleeve push rods 26, the limiting blocks 25 move downwards at the same time, in the process that the shaft sleeves 12 move along the axis direction, the limiting blocks 25 move to positions between the two shaft sleeves 12, and finally the end faces of the opposite ends of the two shaft sleeves 12 abut against the corresponding positioning faces on the limiting blocks 25 respectively for limiting, so that the shaft sleeves 12 are positioned in the axial direction.
A be used for supporting axle sleeve 12 in this embodiment for axle sleeve piece 23 is propped up, is provided with the constant head tank on axle sleeve piece 23, in other embodiments, also can adopt the axle sleeve of location axle support, the inboard fixedly connected with connecting block of back shaft, has certain interval between the connecting block. The side of connecting block is hugged closely to messenger's axle sleeve after the axle sleeve push rod promoted the axle sleeve, and the side of connecting block orientation axle sleeve is the locating surface, and the connecting block constitutes axial positioning structure for fix a position the axial of axle sleeve. After welding, the connecting block drives the positioning shaft to move towards the middle, and the positioning shaft is restored to the original position to perform next positioning after being separated from the shaft sleeve.
In order to prevent the shaft sleeve 12 from being pushed away from a preset position by the base plate 11 during welding, in this embodiment, a shaft sleeve pressing block 24 is further disposed above the shaft sleeve supporting block 23, a lower surface of the shaft sleeve pressing block 24 is an arc-shaped surface matched with the shaft sleeve 12, the shaft sleeve pressing block 24 can move in the vertical direction to press the shaft sleeve 12 against a positioning groove of the shaft sleeve supporting block 23, the shaft sleeve pressing block 24 constitutes a pressing member, after the shaft sleeve pressing block 24 presses the shaft sleeve 12, an avoidance space for the base plate 11 to extend into and press and contact with the shaft sleeve 12 is formed between the shaft sleeve pressing block 24 and an opposite groove edge of the shaft sleeve supporting block 23. In other embodiments, when the requirements on the position accuracy of the shaft sleeve 12 and the base plate 11 are not high, the pressing piece is not required to be arranged; in other embodiments, the pressing member may also be a pressing shaft extending into the inner hole of the shaft sleeve to press the shaft sleeve.
In this embodiment, the end of the first electrode 42 is arc-shaped, and after the shaft sleeve 12 is fixed by the shaft sleeve support block 23 and the shaft sleeve pressing block 24, the first electrode 42 presses the shaft sleeve 12 through the arc-shaped end to realize the conductive communication with the shaft sleeve 12.
As shown in fig. 2, the substrate positioning stand 3 includes a substrate feeding mechanism 31, and the substrate feeding mechanism 31 is also a conveyor belt. When the substrate feeding mechanism 31 conveys the substrate 11, the convex part 13 of the substrate 11 is placed on the substrate feeding mechanism 31 towards the right, the feeding direction of the substrate feeding mechanism 31 is opposite to the feeding direction of the shaft sleeve feeding mechanism 21, the right end of the substrate feeding mechanism 31 is an output end, a substrate stop block 33 is fixedly arranged at the output end, the substrate stop block 33 can stop the substrate 11 at the tail end of the substrate feeding mechanism 31, and a travel switch which can be triggered by the substrate 11 is arranged on the substrate stop block 33.
The end of the substrate feeding mechanism 31 is provided with a material pushing plate 32 at one side of the substrate 11 in the width direction, the material pushing plate 32 is of a T-shaped structure and comprises a transverse edge and a vertical edge perpendicular to the transverse edge, the transverse edge of the material pushing plate is parallel to the length direction of the substrate 11 on the substrate feeding mechanism 31, the vertical edge of the material pushing plate is fixedly connected with a material pushing plate driving device, the material pushing plate driving device can enable the material pushing plate 32 to move along the width direction of the substrate 11 by pushing the vertical edge, and the substrate 11 is pushed away from the substrate feeding mechanism 31 after the material pushing plate 32 moves along the width direction of the substrate 11.
One side of the substrate feeding mechanism 31, which is away from the material pushing plate 32, is provided with a positioning slide way which is parallel to the conveying direction of the substrate feeding mechanism 31 and extends toward the shaft sleeve positioning seat 2, and the material pushing plate 32 can push the substrate 11 to the positioning slide way. The positioning slide comprises a bottom plate (not shown in the figure) for supporting the substrate 11, the bottom plate of the positioning slide forms a height positioning structure, and the plane of the upper plate surface of the bottom plate forms a height positioning surface. In this embodiment, after the substrate 11 is positioned in the height direction, the plane of the center position in the height direction can be directly opposite to the axis of the shaft sleeve 12. A material blocking plate 34 is arranged on one side of the positioning slide way, which is opposite to the substrate feeding mechanism 31, the material pushing plate 32 can be blocked by the material blocking plate 34 after pushing the substrate 11 onto the positioning slide way, the blocked substrate 11 is positioned in the width direction of the substrate 11, so that the convex part 13 on the substrate 11 just corresponds to the corresponding shaft sleeve 12, and the material blocking plate 34 forms a transverse positioning structure. The substrate positioning seat 31 further includes a substrate pushing rod 35, the substrate pushing rod 35 is also fixedly connected to a substrate pushing rod driving device, the substrate pushing rod driving device pushes the substrate pushing rod 35, so that the substrate pushing rod 35 can reciprocate along the length direction of the positioning slideway, so as to push the substrate 11 towards the direction of the shaft sleeve positioning seat 2, so that the substrate 11 contacts with the shaft sleeve 12, and the substrate pushing rod 35 constitutes a push rod in the substrate driving mechanism.
In other embodiments, the positioning slide way is not provided, but the substrate feeding mechanism is provided with a wider width, the material pushing plate and the material blocking plate are arranged on two opposite sides of the substrate feeding mechanism, when the substrate moves to the material pushing plate, the travel switch controls the substrate feeding mechanism to stop, and the material pushing plate pushes the substrate to move until the substrate is stopped by the material blocking plate, so that the substrate is transversely positioned. And then the substrate is pushed to contact the shaft sleeve by the substrate driving mechanism. At the moment, the upper surface of the substrate feeding mechanism is a height positioning surface, and the substrate feeding mechanism is of a height positioning structure.
In this embodiment, the second electrode 41 of the welding machine is used for connecting with the substrate 11, the second electrode 41 is mounted on the substrate pushing rod 35, a mechanical gripper is disposed at the front end of the second electrode 41, when the substrate 11 is pushed onto the positioning slide from the substrate feeding mechanism 31, the mechanical gripper grips the substrate 11, and the substrate pushing rod 35 pushes the mechanical gripper to move together with the substrate 11, so as to achieve conductive connection between the second electrode 41 and the substrate 11, and prepare for the subsequent welding operation.
The equal fixedly connected with drive arrangement of parts such as axle sleeve push rod 26, stopper 25, axle sleeve briquetting 24, scraping wings 32, base plate push rod 35 in this embodiment is in order to realize reciprocating motion to stopper 25 is the example, and stopper 25 fixed connection is at electric putter's output, and electric putter makes the stopper can carry out reciprocating motion through driving motor and lead screw nut mechanism, and electric putter constitutes stopper drive arrangement. In other embodiments, the driving device may also be a hydraulic cylinder, for example, the limit block is fixed on a piston rod of the hydraulic cylinder, and the motion of the limit block is realized by the extension and retraction of the piston rod, but of course, the driving device may also be an air cylinder or a slider-crank mechanism, and since the driving form belongs to the prior art well known to those skilled in the art, the driving device is not limited in detail, and is not shown in the drawings.
In the embodiment, the driving devices for realizing the reciprocating motion of each component in the hinge welding positioning device are all in signal connection with the same controller, the model of the controller is Micro800, meanwhile, travel switches arranged on the shaft sleeve feeding mechanism and the substrate feeding mechanism are also in signal connection with the controller, information about whether the substrate and the shaft sleeve are in place or not is transmitted to the controller, and the controller can control the start and stop of the conveyor belt and the action of the driving devices according to the information transmitted by the travel switches and the set flow.
The working process of the hinge welding device and the control flow of the controller in the embodiment are as follows: for the shaft sleeve 12, the shaft sleeve 12 is transported by the shaft sleeve feeding mechanism 21 in the direction close to the substrate positioning seat 31, then the shaft sleeve 12 is stopped at the position where the axis coincides with the reference axis by the feeding stop block, the travel switch arranged on the shaft sleeve feeding mechanism 21 is triggered, the travel switch transmits the information that the shaft sleeve is conveyed in place to the controller, and the controller controls the shaft sleeve feeding mechanism to stop transmitting after receiving the signal; then the controller controls the limiting block 25 to move downwards to a position between the two shaft sleeves 12, and controls the shaft sleeve push rod 26 to move after a set period of time, the shaft sleeve push rod 26 pushes the shaft sleeve 12 to move towards the middle, the shaft sleeve 12 is pushed to the positioning groove of the shaft sleeve supporting block 23 from the shaft sleeve feeding mechanism 21 until the shaft sleeve 12 is stopped by the positioning surface on the limiting block 25, and the shaft sleeve 12 is reset by the shaft sleeve push rod after being stopped by the positioning surface; finally, the controller controls the shaft sleeve pressing block 24 to move downwards to press the shaft sleeve 12, and the shaft sleeve 12 is tightly pressed on the shaft sleeve supporting block 23.
For the substrate 11, the end of the substrate 11 conveyed to the substrate feeding mechanism 31 by the substrate feeding mechanism 31 is stopped by the substrate stopper 33 and then triggers the travel switch, the travel switch transmits a signal to the controller, and the controller controls the substrate feeding mechanism to stop transmitting; then the controller controls the material pushing plate 32 to push the substrate 11 until the substrate 11 is stopped by the material stopping plate 34, and the material pushing plate driving device resets after stopping; then the controller controls the substrate pushing rod 35 to move, and the substrate pushing rod 35 pushes the substrate 11 to move towards the shaft sleeve positioning seat 2 and pass through the avoiding space to contact with the shaft sleeve 12. It should be noted that the controller controls the substrate pushing rod 35 to push the substrate 11 to contact the bushing 12 after the bushing pressing block 24 presses the bushing 12.
And finally, the welding machine works, the shaft sleeve 12 and the base plate 11 are welded together, and after the welding work is finished, the controller controls the base plate pushing rod 35, the shaft sleeve pressing block 24 and the limiting block 25 to reset to prepare for welding of the next hinge. The hinge welding device in the embodiment can move the shaft sleeve and the base plate through the feeding and driving mechanism and position the shaft sleeve and the base plate through the positioning structure, so that the automation of feeding and positioning is realized, and the production efficiency of the hinge is improved while the welding precision of the shaft sleeve and the base plate is ensured.
In the embodiment 2 of the hinge welding apparatus of the present invention, as shown in fig. 3, since the shaft sleeve 12 is easily pressed by the pressing block or the base plate 11 to deform during the positioning and welding processes, which affects the subsequent assembly and rotation, in order to prevent the deformation of the shaft sleeve 12, in this embodiment, an insulating shaft body as the support shaft 202 is preset in the inner hole of the shaft sleeve 12 before the shaft sleeve 12 is transported by the shaft sleeve feeding mechanism, and the insulating shaft body is made of plastic, has a certain strength, and is insulated from the shaft sleeve 12. The support shaft 202 is removed from the sleeve 12 after the hinge is welded, and the shape of the sleeve 12 is substantially unchanged by the support shaft 202. In other embodiments, the supporting shaft may be a metal rod, such as a steel rod, a copper rod, a tungsten rod, etc., and an insulating substance, such as SiC, AL2O3, or a ceramic coating, etc., is applied to the outer side of the metal rod before the metal rod is placed in the inner bore of the bushing. In this embodiment, the limiting block 201 is provided with an avoiding hole 203 for avoiding the supporting shaft protruding from the end face of the shaft sleeve, and in other embodiments, the length of the supporting shaft can be smaller than that of the shaft sleeve, so that the axial positioning of the shaft sleeve is prevented from being affected.
In the embodiment of the hinge welding and positioning device of the present invention, the structure of the hinge welding and positioning device in this embodiment is the same as that of the hinge welding and positioning device in the above embodiment, and details are not repeated.

Claims (7)

1. Hinge welding set, wherein the hinge includes two axle sleeves and has the base plate of two convex parts, hinge welding set includes pay-off and positioner and welding mechanism, and wherein pay-off and positioner are used for conveying and location base plate and axle sleeve, and welding mechanism welds the corresponding convex part of axle sleeve at the base plate afterwards, and wherein pay-off and positioner include:
the base plate positioning seat is provided with a height positioning structure and a transverse positioning structure, wherein the height positioning structure is provided with a height positioning surface which is used for positioning the base plate so that the base plate is in butt joint with the shaft sleeve and has a set height, and the transverse positioning structure is used for being matched with at least one side surface of the base plate in the width direction so as to position the base plate until each convex part of the base plate is aligned with the corresponding shaft sleeve;
the axle sleeve positioning seat cooperates with the base plate positioning seat and fixes a position the base plate and the axle sleeve relatively and is equipped with: a positioning groove or a positioning shaft for positioning the shaft sleeves to be welded to a set position so as to enable the two shaft sleeves to be coaxial; the axial positioning structure is used for positioning the distance between the two shaft sleeves and is provided with two positioning surfaces which are parallel and spaced and are respectively positioned with the opposite end surfaces of the two shaft sleeves;
the output end of the shaft sleeve feeding mechanism is provided with a shaft sleeve driving mechanism for pushing each shaft sleeve to the position where the opposite end surface is attached to the positioning surface; and
a substrate feeding mechanism, the output end of which is provided with a substrate driving mechanism for applying force to the substrate to press and contact the substrate and the shaft sleeve,
wherein one side of the base plate positioning seat, which is positioned at the output end of the base plate feeding mechanism, is provided with a positioning slide way extending towards the shaft sleeve positioning seat, the bottom plate of the positioning slide way forms the height positioning structure, the upper plate surface of the bottom plate forms the height positioning surface, the transverse positioning structure is a material baffle plate arranged at one side of the positioning slide way, which is opposite to the base plate feeding mechanism, the base plate feeding mechanism is provided with a material pushing plate, the material pushing plate pushes the corresponding base plate to the positioning slide way along the conveying direction vertical to the base plate feeding mechanism, the base plate driving mechanism comprises a base plate pushing rod which reciprocates along the direction of the positioning slide way,
the welding mechanism is a resistance welding machine, the resistance welding machine is provided with a first electrode and a second electrode, the first electrode is used for being in conductive connection with the shaft sleeve, the second electrode is used for being in conductive connection with the substrate, the end portion of the first electrode is arc-shaped, the shaft sleeve is tightly pressed by the first electrode through the arc-shaped end portion after the shaft sleeve is fixed, conductive communication with the shaft sleeve is achieved, the second electrode is installed on a substrate push rod of the substrate driving mechanism, and a mechanical hand grip used for clamping the substrate is arranged at the front end of the second electrode, so that conductive connection between the second electrode and the substrate is achieved.
2. The hinge welding apparatus of claim 1, wherein the bushing locating seat is provided with two of the locating slots, the two locating slots being coaxially spaced apart for locating engagement with two corresponding bushings to be welded, respectively, the axial locating structure being disposed between the two locating slots.
3. The hinge welding device according to claim 2, wherein the axial positioning structure is a stopper disposed between the two positioning grooves, and two axial opposite end surfaces of the stopper along the reference axis form the positioning surfaces.
4. A hinge welding device according to claim 2, wherein the feeding and positioning device further comprises a shaft sleeve fixing structure, the shaft sleeve fixing structure comprises a pressing member for pressing the shaft sleeve in the positioning groove, and an avoiding space for the substrate to extend into and press against the shaft sleeve is formed between the pressing member and the groove edge of the positioning groove.
5. A hinge welding apparatus as claimed in claim 1, wherein the feeding and positioning means further comprises a support shaft for being inserted into the inner hole of each of the sleeves, the support shaft being an insulating shaft or having an insulating layer on an outer peripheral surface thereof.
6. The hinge welding apparatus according to claim 1, wherein the sleeve positioning seat is further provided with a feed baffle plate disposed at an output end of the sleeve feeding mechanism and on a side of the positioning groove, the feed baffle plate having a stop surface for engaging with the sleeve stop and causing an axis of the sleeve to coincide with the reference axis.
7. A hinge welding apparatus as claimed in claim 1, wherein the sleeve drive mechanism includes sleeve pushers disposed on opposite sides of the sleeve feed mechanism for pushing engagement with the respective sleeves.
CN202110362460.9A 2019-03-19 2019-03-19 Hinge welding device with welding mechanism and positioning device Active CN113059258B (en)

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CN111571168B (en) * 2020-05-25 2021-04-02 郑州磊展科技造纸机械有限公司 Method and tool for assembling grinding shell and grinding cover of double-disc pulping machine in interchangeable welding and centering manner

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US6373027B1 (en) * 1999-10-12 2002-04-16 Hyundai Motor Company Welding positioning system for seam welding
CN202292075U (en) * 2011-06-28 2012-07-04 合肥兴科石化设备技术有限责任公司 Shaft sleeve positioning and installing mechanism of automobile door hinge
CN108161195A (en) * 2017-12-12 2018-06-15 广州亨龙智能装备股份有限公司 Hinge resistance-welding process
CN108381104A (en) * 2018-05-25 2018-08-10 茵科门控(珠海保税区)有限公司 A kind of hinge tooling
CN108608150A (en) * 2018-06-11 2018-10-02 河南森源电气股份有限公司 Hinge welding tooling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6373027B1 (en) * 1999-10-12 2002-04-16 Hyundai Motor Company Welding positioning system for seam welding
CN202292075U (en) * 2011-06-28 2012-07-04 合肥兴科石化设备技术有限责任公司 Shaft sleeve positioning and installing mechanism of automobile door hinge
CN108161195A (en) * 2017-12-12 2018-06-15 广州亨龙智能装备股份有限公司 Hinge resistance-welding process
CN108381104A (en) * 2018-05-25 2018-08-10 茵科门控(珠海保税区)有限公司 A kind of hinge tooling
CN108608150A (en) * 2018-06-11 2018-10-02 河南森源电气股份有限公司 Hinge welding tooling

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Application publication date: 20210702

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