CN109015479B

CN109015479B - Accurate tight door assembly system of clamping of new energy automobile

Info

Publication number: CN109015479B
Application number: CN201810751468.2A
Authority: CN
Inventors: 李青华
Original assignee: Individual
Current assignee: Jiangsu Kunyang Automation Equipment Co ltd
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2020-07-17
Anticipated expiration: 2038-07-10
Also published as: CN109015479A

Abstract

The invention relates to the field of new energy automobile manufacturing, in particular to a vehicle door assembling system for accurately clamping a new energy automobile. A vehicle door assembly system for accurately clamping a new energy vehicle comprises a turnover mechanism, a guide mechanism, a bracket mechanism, a clamping mechanism and a positioning mechanism; the clamping mechanism comprises a first clamping mechanism and a second clamping mechanism; the first clamping mechanism and the second clamping mechanism are adopted, so that the workpiece can be clamped and fixed at a correct position, the workpiece is prevented from being misplaced or deformed during assembly operation, and the assembly precision and stability of the workpiece are ensured; the second clamping mechanism clamps the vehicle door workpiece, accurately positions the vehicle door hinge to the mounting position, waits for mounting equipment to mount the hinge on the vehicle door workpiece, and can accurately fix the two hinges on the two hinge mounting points on the hinge reinforcing plate by adopting the clamping mechanism. Greatly improving the production efficiency and reducing the labor intensity.

Description

Accurate tight door assembly system of clamping of new energy automobile

Technical Field

The invention relates to the field of new energy automobile manufacturing, in particular to a vehicle door assembling system for accurately clamping a new energy automobile.

Background

As shown in fig. 3, the door work 2 includes a door lock 21, a door inner panel 22, a door sash 23, a door sill outer reinforcement 24, a door outer panel 25, a door reinforcement cross member 26, a hinge reinforcement plate 27, and a hinge 28. The door inner plate 22 is an integral stamping part, and the door inner plate 22 is a basic supporting structure of the door workpiece 2; the door lock 21 is mounted on the rear end portion of the door inner panel 22; the door sash 23 is welded to the sash structure of the door inner panel 22; the outer reinforcing plate 24 of the vehicle door windowsill is welded at the lower end of the vehicle door window frame 23, and locally reinforces the windowsill position of the vehicle door workpiece 2; the door reinforcing beam 26 is fixed on the door outer plate 25, the door outer plate 25 is fixed on the door inner plate 22 through edge covering and welding processes, a convex edge at one end of the door reinforcing beam 26 is pressed against the inner surface of the door inner plate 22, and a part of force on the door outer plate 25 can be transmitted to the door inner plate 22 through the door reinforcing beam 26 to prevent the deformation of the door outer plate 25; the hinge reinforcing plate 27 is a force bearing part on the door workpiece 2, the hinge reinforcing plate 27 is fixed at the front end part of the door inner plate 22, the hinge reinforcing plate 27 is fixedly contacted with one end of the door reinforcing cross beam 26, and part of force on the door outer plate 25 is directly transmitted to the hinge reinforcing plate 27 through the door reinforcing cross beam 26; the hinge reinforcing plate 27 is provided with two hinge mounting points which are spaced at a certain distance and used for reducing the sagging amount of the vehicle door workpiece 2; two hinges 28 are fixed to two hinge mounting points on the hinge reinforcement plate 27 for opening and closing of the door. In the case of mass production, it is difficult to ensure the uniqueness and consistency of the position of the door workpiece 2 with a tooling or positioning system. When the door with the hinge assembly is assembled, the workload of mounting and adjusting the door is increased, the debugging difficulty is increased, the gap and the break difference between the door and the side wall assembly are difficult to ensure, and operators complain about the gap and the break difference.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a vehicle door assembling system for accurately clamping a new energy vehicle, wherein a first clamping mechanism and a second clamping mechanism are adopted, so that a workpiece can be clamped and fixed at a correct position, the workpiece is prevented from being misplaced or deformed during assembling operation, and the assembling precision and stability of the workpiece are ensured; the second clamping mechanism clamps the vehicle door workpiece, accurately positions the vehicle door hinge to the mounting position, waits for mounting equipment to mount the hinge on the vehicle door workpiece, and can accurately fix the two hinges on the two hinge mounting points on the hinge reinforcing plate by adopting the clamping mechanism. Greatly improving the production efficiency and reducing the labor intensity.

In order to achieve the purpose, the invention adopts the following technical scheme:

a vehicle door assembly system for accurately clamping a new energy vehicle comprises a turnover mechanism, a guide mechanism, a bracket mechanism, a clamping mechanism and a positioning mechanism; the turnover mechanism comprises a bedplate and angle adjusting support leg devices, wherein the angle adjusting support leg devices are provided with two groups, and the two groups of angle adjusting support leg devices are fixedly arranged at the bottom of the bedplate; the bedplate is provided with an installation reference hole, the whole bedplate is of a pentagonal structure, one side of the bedplate is provided with two openings, the opposite sides of the two openings are provided with a boss, and a through groove is formed in the bedplate;

the clamping mechanism comprises a first clamping mechanism and a second clamping mechanism; the number of the first clamping mechanisms is three, two first clamping mechanisms are arranged on the left side of the bedplate and used for clamping the inner plate of the vehicle door, and one first clamping mechanism is arranged on the right side outer plate structure of the bedplate;

the second clamping mechanism comprises a second clamping mechanism base, a first base reinforcing plate, a second base reinforcing plate, a first base rotating shaft, a second base rotating shaft, a first rotating shaft connecting piece, a second clamping mechanism flat plate and a manual hinge clamp; the second clamping mechanism base is fixed on the upper surface of the bedplate, and a side plate of the second clamping mechanism base is arranged to be of a step structure; the first base reinforcing plate is fixed on the first-stage step; the second base reinforcing plate is fixed on the second-stage step; the first base reinforcing plate and the second base reinforcing plate are used for reinforcing the structural strength of the second clamping mechanism base; the first base rotating shaft and the second base rotating shaft are arranged on the second clamping mechanism base through a rotating pair; the front end of the second clamping mechanism flat plate is fixed on the upper surface of the second base rotating shaft, and the rear end of the second clamping mechanism flat plate is connected with the first base rotating shaft through a first rotating shaft connecting piece; the upper end of the first base rotating shaft is connected with a cylinder piston rod through a revolute pair, and the cylinder works to push the first base rotating shaft to rotate, so that the second clamping mechanism flat plate is pushed to rotate around a fixed axis where the second base rotating shaft is located; the two manual hinge clamps are arranged on two sides of the second clamping mechanism flat plate and used for clamping and positioning the hinges of the vehicle door workpiece.

As a further improvement, the angle adjusting support leg device comprises an angle adjusting mounting plate, a rotating shaft mounting plate, a rotating shaft seat and a limiting bolt; the angle adjusting mounting plate is fixed on the lower surface of the bedplate; the angle adjusting mounting plate is connected to the rotating shaft mounting plate through a rotating shaft and can rotate around the rotating shaft, and five limiting holes are formed in the arc edge of the angle adjusting mounting plate and respectively correspond to five different inclination angles of the bedplate; the rotating shaft mounting plate is provided with a limiting hole, and a limiting bolt is fixed on the limiting hole of the rotating shaft mounting plate through one limiting hole on the rotating mounting plate to adjust different space angles of the bedplate; the pivot mounting panel is fixed in the both sides of pivot seat, and the pivot seat is fixed on ground, provides the support for whole car door assembly fixture device.

As a further improvement, the upper surface of the bedplate is fixedly provided with a hanging ring and four identification blocks, and the identification blocks are arranged on the periphery of the bedplate and used for positioning marks when the vehicle door workpiece conveying and assembling equipment works.

The first clamping mechanism comprises a second support, a first clamping cylinder, a first pressure arm, a first positioning block, a third adjusting gasket, a first pressing block and a fourth adjusting gasket, the second support is arranged on the upper surface of the bedplate, the upper end of the second support is L-shaped, the first positioning block presses the third adjusting gasket and is fixed on a horizontal mounting surface of a L-shaped structure at the upper end of the second support, the contact surface of the first positioning block and a workpiece is an arc surface, the arc surface is completely attached to the surface of a vehicle door workpiece at the clamping position and evenly stressed, the first positioning block is prevented from damaging the surface of the vehicle door workpiece, the first clamping cylinder is arranged on a vertical mounting surface of a L-shaped structure at the upper end of the second support, the first pressing arm is arranged on a corner guide rod of the first clamping cylinder, the first clamping cylinder works to drive the first pressing arm to rotate and press the vehicle door workpiece, a boss plane is arranged at the free end of the first pressing arm, the first pressing block presses the fourth adjusting gasket and is fixed on the lower surface of the boss plane of the first pressing arm, and the mounting position of the first pressing block and the first pressing block can be.

As a further improvement, the second clamping mechanism base comprises a base side plate, a second clamping cylinder, a second sensor support, a third base reinforcing plate, a third sensor support, a first buffer, a base bottom plate, a first buffer block a, a second buffer block b and a third buffer block c; the base side plates are arranged on the base bottom plate, the two base side plates are parallel to each other, the base side plates are arranged into a first-stage step structure and a second-stage step structure, the middle of the second-stage step structure is rectangular hollow, a first rotating shaft hole is formed in the top end of the second-stage step structure, a second rotating shaft hole is formed in the side edge of the second-stage step structure, and an inclined boss is arranged above the second rotating shaft hole structure; the second clamping cylinder body is arranged on the upper surface of the base bottom plate, the piston rod is arranged on the rotating shaft of the first base, and the tail end of the piston rod is provided with a rod end joint bearing; the second sensor is arranged on the side surface of the base side plate through a second sensor bracket, and the detection direction of the second sensor is vertical to the inclined boss plane above the second rotating shaft hole structure; the third sensor is arranged on the side surface of the base side plate through a third sensor support, the third sensor is arranged on the same side as the second sensor, the third sensor is positioned above the rectangular hollow structure of the base side plate, and the detection direction of the third sensor is vertical to the plane of the base bottom plate; the first buffer is arranged on the side surface of the base side plate through a first buffer support, the first buffer is symmetrically arranged on the other side of the second sensor, and the buffering direction of the first buffer is vertical to an inclined boss plane above the second rotating shaft hole structure and is used for slowing down the rotating speed of the second clamping mechanism flat plate; the third base reinforcing plate is arranged inside the rectangular hollow structure of the base side plate and used for reinforcing the structural strength of the base side plate; the number of the first buffer blocks a is two, and the first buffer blocks a compress the adjusting gaskets and are fixed on the upper surfaces of the secondary steps of the side plates of the base; the second buffer block b compresses the adjusting gasket and is fixed on the upper surface of the inclined boss structure of the secondary step of the side plate of the base; the third buffer block c compresses the adjusting gasket and is fixed on the bottom surface of the third base reinforcing plate; the first buffer block a, the second buffer block b and the third buffer block c are used for limiting.

As a further improvement, the first base rotating shaft comprises a first shaft sleeve, a first connecting rod, a second connecting rod, a first mandrel, a first flange bushing, a second mandrel, a first swing bolt, a second swing bolt, a first stop bolt, a second stop bolt and a fourth buffer block d; two ends of the first shaft sleeve are provided with a countersunk head hole structure; the first flange bushing is arranged on a counter bore structure of the first shaft sleeve and plays a role in protection, and the shaft and the base body are protected from direct abrasion; the first mandrel is installed inside the first flange bushing through a revolute pair, positioning shaft shoulders are arranged at two ends of the first mandrel to play a positioning role, the positioning shaft shoulders are arranged to prevent the first mandrel from shifting along the axial direction in the working process, and through holes are formed in the positioning shaft shoulders of the first mandrel to prevent the first mandrel from rotating; the first connecting rod is welded on the outer cylindrical surface of the first shaft sleeve, a third rotating shaft hole is formed in the upper end of the first connecting rod, a boss is arranged at the lower end of the first connecting rod, and the middle structural arc is excessive and is attached to the outer cylindrical surface of the first shaft sleeve; the arc structure in the middle of the first connecting rod is provided with a lightening hole; the second connecting rod is welded on the outer cylindrical surface of the first shaft sleeve, a fourth shaft hole is formed in the upper end of the second connecting rod, the lower end of the second connecting rod is an arc surface and is attached to the outer cylindrical surface of the first shaft sleeve, and the second connecting rod is close to the first connecting rod; the second mandrel is arranged on a third shaft hole at the upper end of the first connecting rod, and a through hole is formed in one end of the second mandrel; the first swing bolt penetrates through a through hole of the second mandrel, the second stop bolt penetrates through a round hole of the first swing bolt and is fixed on the side wall of the first connecting rod, and the second mandrel is fixed; the tail end of a piston rod of the second clamping cylinder is connected to the second mandrel, and a rod end joint bearing at the tail end of the piston rod of the second clamping cylinder is used for providing a rotating action; the second swing bolt penetrates through a through hole of the first spindle, the first stop bolt penetrates through a round hole of the second swing bolt and is fixed on the side wall of the base side plate, the first spindle is fixed, and the first shaft sleeve and the first flange bushing are used for providing rotation action; the fourth buffer block d is fixed on the boss plane of first link lower extreme, and fourth buffer block d is used for providing buffering and limiting displacement at first link rotation in-process.

As a further improvement, the second base rotating shaft comprises a second shaft sleeve, a second flange bushing, a third spindle, a third swing bolt and a third stop bolt; two ends of the second shaft sleeve are arranged to be of a countersunk head hole structure, a plane is arranged on the outer circular surface of the second shaft sleeve, and the second clamping mechanism flat plate is fixed on the plane of the outer circular surface of the second shaft sleeve; the second flange bushing is arranged on the counter sink structure of the second shaft sleeve; the third mandrel is installed inside the second flange bushing through a revolute pair, and positioning shaft shoulders are arranged at two ends of the third mandrel and prevent the third mandrel from moving along the axial direction in the working process; a through hole is formed in the third mandrel positioning shaft shoulder to prevent the third mandrel from rotating; and a third swing bolt penetrates through a through hole of a third mandrel, a third stop bolt penetrates through a round hole of the third swing bolt and is fixed on the side wall of the base side plate, the third mandrel is fixed, and a second shaft sleeve and a second flange bushing are used for providing rotation action.

As a further improvement, the first swivel connection comprises a first connecting rod, a thrust washer, a first bushing, a second bushing, a fourth spindle, a fifth spindle, a fourth swing bolt, a fifth swing bolt, a fourth stop bolt, and a fifth stop bolt; round holes are formed in the upper end and the lower end of the first connecting rod; the fifth mandrel is arranged on a fourth shaft hole of the second connecting rod; the first connecting rod nested with the first bushing is installed on a fifth spindle through a revolute pair, and one end of the fifth spindle is provided with a through hole; a fifth swing bolt penetrates through a through hole of a fifth spindle, a fifth stop bolt penetrates through a round hole of the fifth swing bolt and is fixed on the side wall of the second connecting rod, and the fifth spindle is fixed; the second bushing is nested on the round hole at the upper end of the first connecting rod; the fourth mandrel is arranged on the second bushing through a revolute pair; one end of the fourth mandrel is provided with a through hole; a fourth swing bolt penetrates through a through hole of a fourth mandrel, a fourth stop bolt penetrates through a round hole of the fourth swing bolt and is fixed on the side wall of the second clamping mechanism flat plate, and the fourth mandrel is fixed; the thrust washers are four and are arranged at two ends of the fourth spindle and the fifth spindle; the first bushing and the second bushing play a role in protection, and the shaft and the base body are protected from direct abrasion; the thrust washer plays the guard action, avoids the direct contact wearing and tearing of head rod and shaft hole wall.

As a further improvement, the second clamping mechanism flat plate comprises a first clamping platform, a first stop block, a second stop block and a fifth shaft hole lifting lug; the first clamping platform is arranged on the plane of the outer circular surface of the second shaft sleeve; a groove is formed in the middle of one side of the first clamping platform, and the groove is arranged to prevent the first clamping platform from interfering with the second bracket in the process of rotating around the axis of the third spindle; the first stop block and the second stop block are arranged on the lower surface of the first clamping platform, correspond to the first buffer block a and the second buffer block b, and provide limiting effect on the rotation angle of the first clamping platform; the fifth shaft hole lifting lug is arranged on the lower surface of the first clamping platform, and the fourth mandrel is connected with the fifth shaft hole lifting lug and the first connecting rod and is used for driving the first clamping platform to rotate;

as a further improvement, the manual hinge clamp comprises two manual hinge clamps, wherein each manual hinge clamp comprises a clamping arm mounting seat, a left clamping arm and a right clamping arm; the hinge comprises a male hinge, a female hinge and a hinge pin;

the clamping arm mounting seat compresses the adjusting gasket and is fixed on the first clamping platform; the left clamping arm and the right clamping arm are arranged on the clamping arm mounting seat, and are in linkage work and clamp a hinge pin and a female hinge of the hinge, and are used for positioning the position of the hinge relative to a vehicle door workpiece;

the clamping arm mounting seat comprises a second corner block, a second clamping platform, a fourth sensor bracket, a fourth sensor, a hinge brake block, a buffer block bracket, a clamping arm handle, a sixth mandrel, a third bushing, a sixth swing bolt, a fifth buffer block e, a sixth buffer block f and a seventh buffer block g; the second corner block compresses the adjusting gasket and is fixed on the first clamping platform; the second clamping platform compresses the adjusting gasket and is fixed on the side face of the second corner block, three cylindrical holes are formed in the horizontal plane part of the second clamping platform, the tail end of the second clamping platform is of a slender structure, and right-angle transition is adopted at the joint of the root part of the slender structure; the fourth sensor is fixed on the side surface of the second clamping platform through a fourth sensor support, and the detection direction of the fourth sensor is vertical to the upper plane of the second clamping platform and is used for detecting the opening and closing state of the left clamping arm; the hinge brake block is arranged on the upper surface of the second clamping platform, and when the second clamping mechanism positions the hinge relative to the vehicle door workpiece, the hinge brake block stops the female hinge from rotating, so that the left clamping arm and the right clamping arm can clamp the female hinge of the hinge; the third bushing is nested on the cylindrical hole on the elongated structure of the second clamping platform; a sixth mandrel penetrates through a cylindrical hole in the middle of the clamping arm handle and a third bushing, and the clamping arm handle is installed on the elongated structure of the second clamping platform through a revolute pair; the sixth swing bolt penetrates through the through hole of the sixth spindle, the sixth swing bolt is fixed on the upper surface of the clamping arm handle through a stop bolt, and the sixth spindle is fixed; the buffer block bracket is fixed at the right-angle transition position of the root part of the slender structure of the second clamping platform; the fifth buffer block e and the seventh buffer block g are fixed on the buffer block bracket; the seventh buffer block g is fixed on the clamping arm handle; the fifth buffer block e, the sixth buffer block f and the seventh buffer block g are used for limiting the handle of the clamping arm; when the manual hinge clamp is in a clamping state, the clamping arm handle is positioned in the middle, the fifth buffer block e and the sixth buffer block f are in contact with each other and limit the clamping arm handle to rotate rightwards, when the manual hinge clamp is in a releasing state, the clamping arm handle turns to the left, and the seventh buffer block g is in contact with the section of the clamping arm handle and limits the clamping arm handle to continue to rotate leftwards;

the left clamping arm comprises a second connecting rod, a left connecting block, a left hinge pin positioning block, a fourth bushing, a first pin shaft, a fifth bushing, a seventh mandrel, a seventh swing bolt and a fourth sensor catch; cylindrical holes are formed in the two ends of the second connecting rod, and the fourth bushing is nested in the cylindrical holes of the second connecting rod; the left connecting block is arranged on the second connecting rod through a first pin shaft; the second connecting rod is arranged on the clamping arm handle through a first pin shaft; the fifth bush is nested on the cylindrical hole of the second clamping platform, the seventh mandrel penetrates through the cylindrical hole of the left connecting block and the fifth bush, and the left connecting block is installed on the second clamping platform through the rotating pair; the seventh swing bolt penetrates through the through hole of the seventh spindle, the seventh swing bolt is fixed on the upper surface of the left connecting block through a stop bolt, and the seventh spindle is fixed; the left hinge pin positioning block compresses the adjusting gasket and is fixed on the side face of the left connecting block, and a cylindrical hole for fixing the hinge pin is formed in the tail end of the left hinge pin positioning block; the fourth sensor blocking piece is arranged on the side face of the left hinge pin positioning block, corresponds to the fourth sensor and is used for detecting the opening and closing state of the left clamping arm;

the right clamping arm comprises a third connecting rod, a right connecting block, a right hinge pin positioning block, a fifth bushing, a second pin shaft, a hinge pin ejector rod, a female hinge ejector rod, an ejector rod gasket, a spring and an eighth mandrel; cylindrical holes are formed in the two ends of the third connecting rod, and the fifth bushing is nested in the cylindrical hole of the third connecting rod; the right connecting block is arranged on the third connecting rod through a second pin shaft; the third connecting rod is arranged on the clamping arm handle through a second pin shaft; the eighth mandrel penetrates through the cylindrical hole and the bushing of the right connecting block, and the right connecting block is installed on the second clamping platform through the revolute pair; the swing bolt penetrates through the through hole of the eighth spindle, the swing bolt is fixed on the upper surface of the right connecting block through a stop bolt, and the eighth spindle is fixed; the right hinge pin positioning block compresses the adjusting gasket and is fixed on the side surface of the right connecting block; the hinge pin ejector rod nested with the spring is arranged at the free end of the right hinge pin positioning block through a nut, the hinge pin ejector rod can slide along a cylindrical hole of the right hinge pin positioning block, the free end of the hinge pin ejector rod is arranged to be a conical surface and is used for being attached to the end surface of the hinge pin, the hinge pin is only allowed to rotate around a fixed axis, and the impact of the hinge pin ejector rod on the hinge pin when the hinge pin is pressed tightly can be relieved by the aid of the spring; the female hinge ejector rod and the ejector rod gasket are installed at the free end of the right hinge pin positioning block through bolts, the length of the female hinge ejector rod is adjusted by increasing or reducing the number of the ejector rod gaskets so as to adapt to female hinges with different widths, and the female hinge ejector rod and the left hinge pin positioning block compress the female hinge so as to determine the relative position of the hinge and the second clamping mechanism.

Due to the adoption of the technical scheme, the workpiece can be clamped and fixed at a correct position by adopting the first clamping mechanism and the second clamping mechanism, the workpiece is prevented from being misplaced or deformed during assembly operation, and the assembly precision and stability of the workpiece are ensured; the second clamping mechanism clamps the vehicle door workpiece, accurately positions the vehicle door hinge to the mounting position, waits for mounting equipment to mount the hinge on the vehicle door workpiece, and can accurately fix the two hinges on the two hinge mounting points on the hinge reinforcing plate by adopting the clamping mechanism. Greatly improving the production efficiency and reducing the labor intensity. .

Drawings

Fig. 1 is a schematic structural diagram of a precision clamping door assembly system of a new energy automobile according to an embodiment of the invention.

Fig. 2 is an exploded view of the turnover mechanism according to the embodiment of the present invention.

Fig. 3 is an exploded view of a vehicle door workpiece structure according to an embodiment of the invention.

Fig. 4 is an exploded view of the guiding mechanism according to the embodiment of the present invention.

Fig. 5 is an exploded view of the first bracket structure according to the embodiment of the present invention.

Fig. 6 is an exploded view of the first clamping mechanism according to the embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a second clamping mechanism according to an embodiment of the invention.

Fig. 8 is an exploded view of a second clamping mechanism base structure according to an embodiment of the present invention.

Fig. 9 is an exploded view of a first base hinge structure according to an embodiment of the invention.

Fig. 10 is an exploded view of a second base hinge structure according to an embodiment of the invention.

Fig. 11 is an exploded view of a first shaft coupling structure according to an embodiment of the present invention.

Fig. 12 is an exploded view of a second clamping mechanism plate structure according to an embodiment of the present invention.

Fig. 13 is a schematic structural view of a manual hinge clamp according to an embodiment of the present invention.

Fig. 14 is an exploded view of a clamp arm mount configuration according to an embodiment of the present invention.

Fig. 15 is an exploded view of the left clamp arm configuration of an embodiment of the present invention.

Fig. 16 is an exploded view of the right clamp arm configuration of an embodiment of the present invention.

Fig. 17 is an exploded view of the first positioning mechanism 7 according to the embodiment of the present invention.

Fig. 18 is an exploded view of a second cradle structure according to an embodiment of the invention.

Detailed Description

The vehicle door assembling system accurately clamped by the new energy vehicle as shown in fig. 1 comprises a turnover mechanism 1, a guide mechanism 3, a first bracket 4, a first clamping mechanism 5, a second clamping mechanism 6, a first positioning mechanism 7, a second positioning mechanism 8 and a second bracket 9. The turnover mechanism 1 is used for positioning the upper clamp part and is arranged into a turnover structure, so that a workpiece can be turned over towards two sides, and a hinge can be conveniently assembled on an assembling device; the guide mechanism 3 is used for guiding the vehicle door workpiece and guiding the vehicle door workpiece 2 to be placed at the correct position on the vehicle door assembling fixture; the first bracket 4 and the second bracket 9 are used for supporting a door frame window structure and a door outer plate of the door workpiece 2; the first clamping mechanism 5 is used for clamping and fixing the workpiece at a correct position, so that the workpiece is prevented from being misplaced or deformed during assembly operation, and the assembly precision and stability of the workpiece are ensured; the second clamping mechanism 6 clamps the vehicle door workpiece 2, accurately positions the vehicle door hinge to the mounting position, and waits for mounting equipment to mount the hinge on the vehicle door workpiece 2; the second positioning mechanism 7 accurately positions the spatial position of the vehicle door workpiece 2, so that the assembly precision and stability of the workpiece are ensured; the first positioning mechanism 8 is used for precise positioning of the door workpiece 2.

As shown in fig. 2, the turnover mechanism includes a bedplate 11 and two sets of angle adjusting leg devices, wherein the two sets of angle adjusting leg devices are fixedly arranged at the bottom of the bedplate 11; the angle adjustment leg device comprises an angle adjustment mounting plate 12, a rotating shaft 13, a rotating shaft mounting plate 14, a rotating shaft seat 15 and a limiting bolt 16. The angle adjusting mounting plate 12 is fixed on the lower surface of the bedplate 11; the angle adjusting mounting plate 12 is connected to the rotating shaft mounting plate 14 through a rotating shaft 13, the angle adjusting mounting plate 12 can rotate around the rotating shaft 13, and 5 limiting holes are formed in the arc edge of the angle adjusting mounting plate 12 and respectively correspond to five different inclination angles of the bedplate 11; a limiting hole is formed in the rotating shaft mounting plate 14, and a limiting bolt 16 is fixed on the limiting hole of the rotating shaft mounting plate 14 through one limiting hole in the rotating mounting plate 12 to adjust different spatial angles of the bedplate 11, so that assembly of assembly equipment is facilitated; the rotating shaft mounting plates 14 are fixed on two sides of the rotating shaft seat 15, and the rotating shaft seat 15 is fixed on the ground or other equipment, so that support is provided for the whole automobile door assembling clamp, and the stability of the clamp is ensured; the bedplate 11 is the basic element of car door assembly jig, and its precision directly influences the accuracy of locating element, is provided with each component installation benchmark hole on the bedplate 11 for installation fixture equipment, and the bedplate 11 is whole to be pentagonal structure, is provided with two openings on one side, and its opposite side is provided with a boss, and inside is provided with six logical grooves, and this setting reduces the weight of bedplate 11 when guaranteeing that fixture equipment has enough mounted position on it, reduces unnecessary weight in the equipment. The bedplate 11 is further provided with a hanging ring 17 and four identification blocks 18, the hanging ring 17 is fixed on the upper surface of the bedplate 11 and can be used for hoisting the bedplate 11 to facilitate movement of the bedplate 11, and the identification blocks 18 are arranged around the bedplate 11 and can be used for positioning marks when the vehicle door workpiece 2 is conveyed and the assembling equipment works. When the turnover mechanism 1 works, the rotating shaft seat 15 is fixed on the ground or other equipment; the working angle of the bedplate 11 is adjusted, one of the limiting holes on the arc edge of the angle adjusting mounting plate 12 is aligned with the limiting hole on the rotating shaft mounting plate 14, the angle is fixed by a limiting bolt 16, the inclination angle of the bedplate 11 is determined, and subsequent workpiece positioning and assembling work can be carried out.

As shown in FIG. 4, the number of the guide mechanisms 3 is four, the guide mechanisms 3 are located on the periphery of the bedplate 11 and correspond to edge wrapping positions of a door sash 23 and a door outer plate 25 of a door workpiece 2 respectively, each guide mechanism 3 comprises L seats 31, upper guide blocks 32 and lower guide blocks 33, the L seats 31 are installed on the upper surface of the bedplate 11, the upper ends of the L seats 31 are provided with inclined surface structures, the upper guide blocks 32 are fixed on the inclined surface structures at the upper ends of the L seats 31 through two bolts, the upper guide blocks 32 are arranged so that the door workpiece 2 can still be guided to enter a correct placement position when a certain deviation exists in the position of the door workpiece 2 on an automobile door assembly fixture, the lower guide blocks 33 are fixed on the vertical surface of the L seats 31 through four bolts, and when the door workpiece 2 is guided to the correct position by the upper guide blocks 32, the lower guide blocks 33 further determine the position of the door workpiece 2 and wait for subsequent accurate positioning and clamping assembly.

As shown in FIG. 5, the first bracket 4 comprises a first support 41, a support block 42, a first sensor support 43, a first sensor 44, a first corner block 45, a first adjusting gasket 46, a second adjusting gasket 47 and a support block 48, wherein the first support 41 is fixedly installed on the upper surface of the bedplate 11 through bolts, the upper cross section of the first support 41 is provided with three threaded holes at equal intervals, the support block 42 is L-shaped, the upper end and the lower end of the long side of the support block 42 are fixed on the first support 41 through bolts, the short side of the support 42 is fixed on the upper surface of the bedplate 11 through a bolt, the support 42 plays a supporting role on the first support 41 and keeps the first support 41 stable in operation, the first sensor 44 is fixed on the upper end of the first support 41 through the first sensor support 43, the sensor installation plane of the first sensor support 43 is arranged in a bending structure to adapt to bending of the door sash 23, the first sensor 44 is used for detecting the distance between the bracket 4 and the door sash 23, the approach degree of the door sash 4 is judged, the first corner block 45 is arranged on the door sash 23, the corner of the door sash 23, the first sensor support is arranged in a clamp structure, the door sash 23, the guide rail is arranged on the left side of the door sash 23, the support structure, the door sash 23, the door sash is arranged for detecting the guide rail, the guide rail is arranged for detecting the size of the guide rail, the guide rail assembly is arranged on the guide rail assembly, the.

As shown in FIG. 6, a first clamping mechanism 5 comprises a second support 51, a first clamping cylinder 52, a first pressing arm 53, a first positioning block 54, a third adjusting gasket 55, a first pressing block 56 and a fourth adjusting gasket 57, the second support 51 is mounted on the upper surface of a platen 11, the upper end of the second support 51 is L-shaped, the first positioning block 54 presses the third adjusting gasket 55 and is fixed on the horizontal mounting surface of the upper end L-shaped structure of the second support 51, the contact surface of the first positioning block 54 with a workpiece is an arc surface which is completely attached to the surface of the door workpiece 2 at a clamping position and uniformly stressed, the first positioning block 54 does not damage the surface of the door workpiece 2, the first clamping cylinder 52 is mounted on the vertical mounting surface of the upper end L-shaped structure of the second support 51, the first pressing arm 53 is mounted on the corner guide rod of the first clamping cylinder 52, the first clamping cylinder 52 works to drive the first pressing arm 53 to rotate and press the door workpiece 2, the first pressing block 53 is mounted on the vertical mounting surface of the platen 52, the platen 5 is provided with a first pressing cylinder 53, the platen 56 is mounted in a space for facilitating the clamping mechanism 5, the first pressing block 5, the first pressing mechanism 5 and the workpiece 2 to be in a state, the first clamping mechanism, the platen 5 is in a state of a pressing mechanism, the platen 2, the pressing mechanism, the platen 5, the pressing mechanism, the platen 5, the pressing mechanism is in a first pressing mechanism, the pressing mechanism is in a first pressing mechanism, the pressing mechanism.

As shown in fig. 7, the second clamping mechanism 6 includes a second clamping mechanism base 61, a first base reinforcing plate 62, a second base reinforcing plate 63, a first base rotating shaft 64, a second base rotating shaft 65, a first rotating shaft connector 66, a second clamping mechanism flat plate 67, and a manual hinge clamp 68. The second clamping mechanism base 61 is fixed on the upper surface of the bedplate 11, and the side plate of the second clamping mechanism base 61 is arranged into a step structure; the first base reinforcing plate 62 is fixed on the first step; the second base reinforcing plate 63 is fixed on the second-stage step; the first base reinforcing plate 62 and the second base reinforcing plate 63 are used to reinforce the structural strength of the second clamping mechanism base 61; the first base rotating shaft 64 and the second base rotating shaft 65 are mounted on the second clamping mechanism base 61 through a rotating pair; the front end of the second clamping mechanism flat plate 67 is fixed on the upper surface of the second base rotating shaft 65, and the rear end is connected with the first base rotating shaft 64 through the first rotating shaft connecting piece 66; the upper end of the first base rotating shaft 64 is connected with a cylinder piston rod through a revolute pair, and the cylinder works to push the first base rotating shaft 64 to rotate, so that the second clamping mechanism flat plate 67 is pushed to rotate around the fixed axis of the second base rotating shaft 65; the two manual hinge clamps 68 are provided, and the manual hinge clamps 68 are mounted on both sides of the second clamping mechanism plate 67, and are used for clamping and positioning the hinge 28 of the door workpiece 2.

As shown in fig. 8, the second clamping mechanism base 61 includes a base side plate 610, a second clamping cylinder 611, a second sensor 612, a second sensor support 613, a third base reinforcing plate 614, a third sensor 615, a third sensor support 616, a first bumper support 617, a first bumper 618, a base bottom plate 619, a first bumper a, a second bumper b, and a third bumper c. The two base side plates 610 are arranged, the base side plates 610 are installed on the base bottom plate 619, the two base side plates 610 are parallel to each other, the base side plates 610 are arranged into a first-stage step structure and a second-stage step structure, the middle of the second-stage step structure is arranged into a rectangular hollow, the arrangement can ensure the structural strength of the second clamping mechanism 6 and reduce the weight of equipment, a first rotating shaft hole is formed in the top end of the second-stage step structure, a second rotating shaft hole is formed in the side edge of the second-stage step structure, and an inclined boss is arranged above the second rotating shaft; the second clamping cylinder 611 is arranged on the upper surface of the base bottom plate 619, a piston rod is arranged on the first base rotating shaft 64, and the tail end of the piston rod is provided with a rod end joint bearing; the second sensor 612 is installed on the side surface of the base side plate 610 through the second sensor support 613, and the detection direction of the second sensor 612 is perpendicular to the inclined boss plane above the second rotating shaft hole structure; the third sensor 615 is installed on the side surface of the base side plate 610 through a third sensor support 616, the third sensor 615 is on the same side as the second sensor 612, the third sensor 615 is located above the rectangular hollow structure of the base side plate 610, and the detection direction of the third sensor 615 is perpendicular to the plane of the base bottom plate 619; the first buffer 618 is installed on the side surface of the base side plate 610 through a first buffer support 617, the first buffers 61 are symmetrically installed on the other side of the second sensor 612, and the buffering direction of the first buffer 618 is perpendicular to the inclined boss plane above the second rotating shaft hole structure and is used for slowing down the rotating speed of the second clamping mechanism flat plate 67; the third base reinforcing plate 614 is installed inside the rectangular hollow structure of the base side plate 610, and the third base reinforcing plate 614 is used for reinforcing the structural strength of the base side plate 610; the number of the first buffer blocks a is two, and the first buffer blocks a compress the adjusting gaskets and are fixed on the upper surfaces of the secondary steps of the base side plate 610; the second buffer block b compresses the adjusting gasket and is fixed on the upper surface of the second-stage step inclined boss structure of the base side plate 610; the third buffer block c compresses the adjusting gasket and is fixed on the bottom surface of the third base reinforcing plate 614; the first buffer block a, the second buffer block b and the third buffer block c are used for limiting.

As shown in fig. 9, the first base rotation shaft 64 includes a first bushing 641, a first link 642, a second link 643, a first spindle 644, a first flange bushing 645, a second spindle 646, a first swing bolt 647, a second swing bolt 648, a first stopper bolt 649, a second stopper bolt 640, and a fourth buffer block d. Two ends of the first bushing 641 are provided with countersunk head structures; the first flange bushing 645 is installed on the counter bored structure of the first bushing 641, and the first flange bushing 645 plays a role of protection to protect the shaft and the base from direct abrasion; the first mandrel 644 is mounted inside the first flange bushing 645 through a revolute pair, positioning shaft shoulders are arranged at two ends of the first mandrel 644 to play a positioning role, the positioning shaft shoulders are arranged to prevent the first mandrel 644 from shifting along the axial direction in the working process, and through holes are formed in the positioning shaft shoulders of the first mandrel 644 to prevent the first mandrel 644 from rotating; the first connecting rod 642 is welded on the outer cylindrical surface of the first shaft sleeve 641, a third rotating shaft hole is formed in the upper end of the first connecting rod 642, a boss is arranged at the lower end of the first connecting rod 642, and the middle structure is in arc transition and is attached to the outer cylindrical surface of the first shaft sleeve 641; the arc structure in the middle of the first connecting rod 642 is provided with lightening holes, so that the weight of parts is reduced on the premise of not influencing the structural strength; the second connecting rod 643 is welded on the outer cylindrical surface of the first shaft sleeve 641, a fourth shaft hole is formed in the upper end of the second connecting rod 643, the lower end of the second connecting rod 643 is an arc surface and is attached to the outer cylindrical surface of the first shaft sleeve 641, and the second connecting rod 643 is close to the first connecting rod 642; a second spindle 646 is installed on a third shaft hole at the upper end of the first connecting rod 642, and a through hole is formed at one end of the second spindle 646; the first swing bolt 647 passes through a through hole of the second spindle 646, the second stopper bolt 640 passes through a circular hole of the first swing bolt 647 to be fixed to a sidewall of the first link 642, and the second spindle 646 is fixed; the end of the piston rod of the second clamping cylinder 611 is connected to the second spindle 646, and the rod end joint bearing at the end of the piston rod of the second clamping cylinder 611 is used for providing the rotating motion; the second swing bolt 648 passes through a through hole of the first spindle 644, the first stopper bolt 649 passes through a circular hole of the second swing bolt 648 and is fixed to the sidewall of the base side plate 610, the first spindle 644 is fixed, and the first boss 641 and the first flange bushing 645 are used to provide a rotating motion; the fourth buffer block d is fixed on the boss plane at the lower end of the first connecting rod 642 and is used for providing buffering and limiting effects in the rotation process of the first connecting rod 642.

As shown in fig. 10, the second base shaft 65 includes a second bushing 651, a second flange bushing 652, a third spindle 653, a third swing bolt 654 and a third stop bolt 655. Two ends of the second shaft sleeve 651 are arranged to be in a countersunk hole structure, a plane is arranged on the outer circular surface of the second shaft sleeve 651, and the second clamping mechanism flat plate 67 is fixed on the plane of the outer circular surface of the second shaft sleeve 651; the second flange bushing 652 is mounted on a counter bore structure of the second bushing 651, and the second flange bushing 652 plays a role in protection, and protects the shaft and the base body from direct abrasion; the third spindle 653 is mounted inside the second flange bushing 652 through a revolute pair, and positioning shoulders are arranged at two ends of the third spindle 653 to play a positioning role, and are arranged to prevent the third spindle 653 from shifting in the axial direction during working; a through hole is formed in the positioning shaft shoulder of the third spindle 653, so that the third spindle 653 is prevented from rotating; the third swing bolt 654 passes through a through hole of the third spindle 653, the third stopper bolt 655 passes through a circular hole of the third swing bolt 654 and is fixed to the sidewall of the base side plate 610, the third spindle 653 is fixed, and the second bushing 651 and the second flange bushing 652 are used to provide a rotating motion.

As shown in fig. 11, first pivot connection 66 includes a first connecting rod 661, a thrust washer 662, a first bushing 663, a second bushing 664, a fourth spindle 665, a fifth spindle 666, a fourth swing bolt 667, a fifth swing bolt 668, a fourth stop bolt 669, and a fifth stop bolt 660. The upper end and the lower end of the first connecting rod 661 are provided with round holes; fifth spindle 666 is mounted on the fourth shaft hole of second link 643; a first connecting rod 661 nested with the first bushing 663 is mounted on the fifth spindle 666 through a revolute pair, and one end of the fifth spindle 666 is provided with a through hole; a fifth swing bolt 668 passes through a through hole of the fifth spindle 666, a fifth stopper bolt 660 passes through a circular hole of the fifth swing bolt 668 to be fixed to a sidewall of the second link 643, and the fifth spindle 666 is fixed; the second bushing 664 is nested on a round hole at the upper end of the first connecting rod 661; the fourth spindle 665 is mounted on the second bush 664 by means of a revolute pair; one end of the fourth mandrel 665 is provided with a through hole; a fourth swing bolt 667 passes through the through hole of the fourth spindle 665, a fourth stop bolt 669 passes through the circular hole of the fourth swing bolt 667 and is fixed on the side wall of the second clamping mechanism flat plate 67, and the fourth spindle 665 is fixed; the thrust washers 662 are four pieces, and the thrust washers 662 are mounted at both ends of the fourth spindle 665 and the fifth spindle 666; the first bushing 663 and the second bushing 664 play a role in protection and protect the shaft and the base body from direct abrasion; the thrust washer 662 protects the first connecting rod 661 from direct contact wear with the wall of the shaft hole.

As shown in fig. 12, the second clamping mechanism plate 67 includes a first clamping platform 671, a first stop 672, a second stop 673, and a fifth axis aperture ear 674. A first clamping platform 671 is mounted on the plane of the outer circular surface of the second bushing 651; a groove is formed in the middle of one side of the first clamping platform 671, and the groove is arranged to prevent the first clamping platform 671 from interfering with the second bracket 9 in the process of rotating around the axis of the third spindle 653; the first block 672 and the second block 673 are arranged on the lower surface of the first clamping platform 671, the first block 672 and the second block 673 correspond to the first buffer block a and the second buffer block b, and the first block 672 and the second block 673 provide the limiting function of the rotation angle of the first clamping platform 671; the fifth axis eye lifting lug 674 is mounted on the lower surface of the first clamping platform 671, and the fourth spindle 665 connects the fifth axis eye lifting lug 674 with the first connecting rod 661 for driving the first clamping platform 671 to rotate.

As shown in fig. 13, there are two manual hinge clamps 68, and the manual hinge clamps 68 include a clamping arm mount 681, a left clamping arm 682, and a right clamping arm 683; hinge 28 includes a male hinge 281, a female hinge 282, and a hinge pin 283. The clamp arm mount 681 compresses the shim and secures to the first clamp platform 671; the left and right clamp

arms

682 and 683 are mounted on the clamp arm mount 681, and the left and right clamp

arms

682 and 683 work in conjunction and clamp the hinge pin 283 and the female hinge 282 of the hinge 28 for positioning the hinge 28 relative to the door workpiece 2.

As shown in fig. 14, the clamping arm mount 681 includes a second corner block 6810, a second clamping platform 6811, a fourth sensor support 6812, a fourth sensor 6813, a hinge stop 6814, a bump stop support 6815, a clamping arm handle 6816, a sixth spindle 6817, a third bushing 6818, a sixth swing bolt 6819, a fifth bump stop e, a sixth bump stop f, and a seventh bump stop g. The second corner block 6810 compresses the spacer shim and is secured to the first clamping platform 671; the second clamping platform 6811 compresses the adjusting gasket and is fixed on the side of the second corner block 6810, three cylindrical holes are arranged on the horizontal plane part of the second clamping platform 6811, the tail end of the second clamping platform 6811 is of a slender structure, and right-angle transition is adopted at the joint of the root parts of the slender structure; the fourth sensor 6813 is fixed to a side surface of the second clamping platform 6811 through a fourth sensor holder 6812, and the detection direction of the fourth sensor 6813 is perpendicular to an upper plane of the second clamping platform 6811, and is configured to detect an open/close state of the left clamping arm 682; a hinge stop 6814 is mounted on the upper surface of the second clamping platform 6811, the hinge stop 6814 blocking rotation of the female hinge 282 when the second clamping mechanism 6 is positioned to position the hinge 28 relative to the door workpiece 2, ensuring that the left and right clamping arms 682, 683 can grip the female hinge 282 of the hinge 28; a third bushing 6818 nests in a cylindrical hole in the elongated structure of the second clamping platform 6811; a sixth spindle 6817 passes through a cylindrical hole in the middle of the clamp arm handle 6816 and through a third bushing 6818 to mount the clamp arm handle 6816 on the elongated structure of the second clamp platform 6811 via a revolute pair; a sixth swing bolt 6819 passes through a through hole of the sixth spindle 6817, and the sixth swing bolt 6819 is fixed to the upper surface of the clamping arm handle 6816 by a stopper bolt, and the sixth spindle 6817 is fixed; a buffer block support 6815 is fixed at the right angle transition of the root of the elongated structure of the second clamping platform 6811; the fifth buffer block e and the seventh buffer block g are fixed on the buffer block support 6815; the seventh buffer block g is fixed on the clamping arm handle 6816; the fifth buffer block e, the sixth buffer block f and the seventh buffer block g are used for limiting the clamping arm handle 6816. When the manual hinge clamp 68 is in the clamped state, the clamping arm handle 6816 is positioned in the middle, the fifth buffer block e and the sixth buffer block f contact and restrict the clamping arm handle 6816 from rotating to the right, and when the manual hinge clamp 68 is in the released state, the clamping arm handle 6816 turns to the left, and the seventh buffer block g contacts the cross section of the clamping arm handle 6816 and restricts the clamping arm handle 6816 from continuing to rotate to the left.

As shown in fig. 15, the left clamping arm 682 includes a second connecting link 6820, a left connecting block 6821, a left hinge pin positioning block 6822, a fourth bushing 6823, a first pin 6824, a fifth bushing 6825, a seventh spindle 6826, a seventh swing bolt 6827, and a fourth sensor tab 6828. Cylindrical holes are formed in two ends of the second connecting rod 6820, and the fourth bushing 6823 is nested in the cylindrical holes of the second connecting rod 6820; the left connecting block 6821 is mounted on the second connecting rod 6820 through a first pin 6824; a second connecting link 6820 is mounted on the clamp arm handle 6816 via a first pin 6824; the fifth bush 6825 is nested in the cylindrical hole of the second clamping platform 6811, the seventh spindle 6826 penetrates through the cylindrical hole of the left connecting block 6821 and the fifth bush 6825, and the left connecting block 6821 is mounted on the second clamping platform 6811 through a revolute pair; the seventh swing bolt 6827 passes through the through hole of the seventh spindle 6826, and the seventh swing bolt 6827 is fixed to the upper surface of the left connecting block 6821 by a stopper bolt, and the seventh spindle 6826 is fixed; the left hinge pin positioning block 6822 compresses the adjusting gasket and is fixed on the side face of the left connecting block 6821, and the tail end of the left hinge pin positioning block 6822 is provided with a cylindrical hole for fixing the hinge pin 283; a fourth sensor stop 6828 is mounted on the side of the left hinge pin positioning block 6822, and the fourth sensor stop 6828 corresponds to the fourth sensor 6813 for detecting the open/close state of the left clamp arm 682.

As shown in fig. 16, the right clamp arm 683 includes a third connecting rod 6830, a right connecting block 6831, a right hinge pin positioning block 6832, a fifth bushing 6833, a second pin 6834, a hinge pin post 6835, a female hinge post 6836, a post spacer 6837, a spring 6838, and an eighth mandrel 6839. Cylindrical holes are formed in two ends of the third connecting rod 6830, and the fifth bushings 6833 are nested in the cylindrical holes of the third connecting rod 6830; the right connecting block 6831 is arranged on a third connecting rod 6830 through a second pin shaft 6834; a third connecting link 6830 is mounted on the clamp arm handle 6816 by a second pin 6834; an eighth spindle 6839 passes through the cylindrical hole of the right connecting block 6831 and the bushing, and the right connecting block 6831 is arranged on the second clamping platform 6811 through a revolute pair; the swing bolt passes through the through hole of the eighth spindle 6839, and the swing bolt 6839 is fixed on the upper surface of the right connecting block 6831 by a stop bolt, and the eighth spindle 6839 is fixed; the right hinge pin positioning block 6832 compresses the adjusting gasket and is fixed on the side surface of the right connecting block 6831; the hinge pin top rod 6835 nested with the spring 6838 is arranged at the free end of the right hinge pin positioning block 6832 through a nut, the hinge pin top rod 6835 can slide along the cylindrical hole of the right hinge pin positioning block 6832, the free end of the hinge pin top rod 6835 is arranged into a conical surface and is used for being jointed with the end surface of the hinge pin 283 and only allowing the hinge pin 283 to rotate around a fixed axis, and the use of the spring 6838 can relieve the impact of the hinge pin top rod 6835 on the hinge pin 283 when the hinge pin 283 is pressed; the female hinge post 6836 and post-lever washer 6837 are bolted to the free end of the right hinge pin locating block 6832, and the length of the female hinge post 6836 is adjusted by increasing or decreasing the number of post-lever washers 6837 to accommodate different widths of female hinges 282, and the female hinge post 6836 and left hinge pin locating block 6822 compress the female hinge 282 to determine the relative positions of the hinge 28 and the second clamping mechanism 6.

When the second clamping mechanism 6 is in an initial state, the piston rod of the second clamping cylinder 611 contracts to pull the first base rotating shaft 64 to rotate, and the first base rotating shaft 64 prompts the second clamping mechanism flat plate 67 to rotate along the fixed axis of the second base rotating shaft 65 through the first rotating shaft connecting piece 66; when the second sensor 612 detects that the second clamping mechanism flat plate 67 rotates to the maximum angle, the second sensor 612 sends a signal to notify the second clamping cylinder 611 to stop working, the internal space of the automobile door assembling jig is increased, and the conveying equipment conveys the door workpiece 2 to the automobile door assembling jig.

The initial state of the clamping arm handle 6816 is located at the middle, the clamping arm handle 6816 is manually turned to the left, and the left clamping arm 682 and the right clamping arm 683 are opened; when the seventh bump stop g restricts the left rotation of the clamp arm handle 6816, the fourth sensor 6813 detects that the left clamp arm 682 is open, the fourth sensor 6813 signals to allow the manual placement of the hinge 28 on the manual hinge clamp 68, the manual reset of the clamp arm handle 6816, and the manual hinge clamp 68 clamps the hinge 28, at which time the fourth sensor 6813 detects that the left clamp arm 682 is closed.

After the door workpiece 2 is positioned by the first positioning mechanism 7 and the second positioning mechanism 8 and the spatial position is determined by the first clamping mechanism 5, the second clamping cylinder 611 is reset, the second clamping mechanism flat plate 67 rotates along the fixed axis of the second base rotating shaft 65, the first stop block 672 contacts the first buffer block a, and the second clamping mechanism flat plate 67 is limited to continue rotating; the third sensor 615 detects that the second clamping mechanism flat plate 67 reaches a specified working angle, and sends a signal to inform the second clamping cylinder 611 to stop working; the mounting position of the hinge 28 with respect to the door workpiece 2 is determined, and it is waited for the subsequent mounting apparatus to mount the hinge 28 to the hinge reinforcement plate 27.

As shown in fig. 17, the first positioning mechanism 7 includes a third support 71, a third clamp cylinder 72, a second press arm 73, a first clamp arm connecting block 74, a first pin boss connecting block 75, a first pin boss 76, a first positioning pin 77, a second presser 78, and a first cylinder stopper 79; the second positioning mechanism 8 is structurally lack of pressing block parts, and the other parts of the structure are the same as the first positioning mechanism 7. The third support 71 is arranged on the upper surface of the bedplate 11, and a boss structure is arranged on the cross section of the upper end of the third support 71; the third clamping cylinder 72 is arranged on the third support 71, and the third clamping cylinder 72 is a manual clamping cylinder; the second pressure arm 73 is arranged on a corner guide rod of the third clamping cylinder 72, and the third clamping cylinder 72 works to drive the second pressure arm 73 to rotate and position and press the workpiece; the free end of the second pressure arm 73 is provided with a boss plane, and the first clamping arm connecting block 74 is fixed on the lower surface of the boss of the second pressure arm 73; the first pin boss connecting block 75 compresses the adjusting shim and is fixed on the vertical surface of the first clamping arm connecting block 74; the first pin boss 76 compresses the adjusting shim and is fixed on the side of the first pin boss connecting block 75; the first positioning pin 77 is fixed at the tail end of the first pin seat 76 through a nut, the positioning direction of the first positioning pin 77 is perpendicular to the bedplate 11, and the first positioning pin 77 is used for accurately positioning the inner door plate 22 in the door workpiece 2; the second pressing block 78 presses the adjusting gasket and is fixed on the lower surface of the first clamping arm connecting block 74, and the second pressing block 78 is used for pressing the vehicle door workpiece 2 when the positioning pin is positioned and fixing the positioned vehicle door workpiece 2; the first cylinder stop block 79 is mounted on the first clamping arm connecting block 74, a bolt fixing hole is formed in the first cylinder stop block 79, and after the vehicle door workpiece 2 is positioned, the first cylinder stop block 79 is fixed with a boss structure of the cross section of the upper end of the third support 71, so that the third clamping cylinder 72 is ensured not to move any more. The first positioning mechanism 7 is arranged on a boss structure of the bedplate 11, and the second positioning mechanism 8 is arranged on the opposite side of the boss structure; when the first positioning mechanism 7 and the second positioning mechanism 8 work, the vehicle door workpiece 2 is preliminarily positioned on the vehicle hinge assembly fixture, the third clamping cylinder 72 is manually operated to act, and the second pressure arm 73 rotates and drives the first positioning pin 77 to position the positioning hole on the vehicle door inner plate 22; the second pressing block 78 on the first positioning mechanism 7 simultaneously presses the vehicle door workpiece 2 to fix the positioned vehicle door workpiece 2; after the door workpiece 2 is positioned, the first cylinder stop 79 is fixed with the boss structure of the upper end cross section of the third support 71, so that the third clamping cylinder 72 is ensured not to move any more, the door workpiece 2 is positioned, and then the door workpiece 2 is completely fixed by the first clamping mechanism 5.

As shown in fig. 18, the second bracket 9 includes a fourth support 91, a second positioning block 92, a fifth support 93, a third corner block 94, and a third positioning block 95. The fourth support 91 compresses the adjustment pad and is fixed to the upper surface of the second chassis reinforcing plate 63; the second positioning block 92 is fixed on the side surface of the fourth support 91; the fifth bearing 93 is fixed on the upper surface of the bedplate 11; a third positioning block 95 is fixed on the cross section of the fifth support 93 through a third corner block 94; the upper surfaces of the second positioning block 92 and the third positioning block 95 are inclined planes, and the inclined planes are used for the second positioning block 92 and the third positioning block 95 to be attached to a frame structure of the vehicle door workpiece 2, so that the damage of the structure of the vehicle door workpiece 2 due to uneven stress is avoided.

Claims

1. A vehicle door assembly system for accurately clamping a new energy vehicle comprises a turnover mechanism, a guide mechanism, a bracket mechanism, a clamping mechanism and a positioning mechanism; it is characterized in that the preparation method is characterized in that,

the turnover mechanism comprises a bedplate and angle adjusting support leg devices, wherein the angle adjusting support leg devices are provided with two groups, and the two groups of angle adjusting support leg devices are fixedly arranged at the bottom of the bedplate; the bedplate is provided with an installation reference hole, the whole bedplate is of a pentagonal structure, one side of the bedplate is provided with two openings, the opposite sides of the two openings are provided with a boss, and a through groove is formed in the bedplate;

the second clamping mechanism comprises a second clamping mechanism base, a first base reinforcing plate, a second base reinforcing plate, a first base rotating shaft, a second base rotating shaft, a first rotating shaft connecting piece, a second clamping mechanism flat plate and a manual hinge clamp; the second clamping mechanism base is fixed on the upper surface of the bedplate, and a side plate of the second clamping mechanism base is arranged to be of a step structure; the first base reinforcing plate is fixed on the first-stage step; the second base reinforcing plate is fixed on the second-stage step; the first base reinforcing plate and the second base reinforcing plate are used for reinforcing the structural strength of the second clamping mechanism base; the first base rotating shaft and the second base rotating shaft are arranged on the second clamping mechanism base through a rotating pair; the front end of the second clamping mechanism flat plate is fixed on the upper surface of the second base rotating shaft, and the rear end of the second clamping mechanism flat plate is connected with the first base rotating shaft through a first rotating shaft connecting piece; the upper end of the first base rotating shaft is connected with a cylinder piston rod through a revolute pair, and the cylinder works to push the first base rotating shaft to rotate, so that the second clamping mechanism flat plate is pushed to rotate around a fixed axis where the second base rotating shaft is located; the two manual hinge clamps are arranged on two sides of the second clamping mechanism flat plate and used for clamping and positioning the hinges of the vehicle door workpiece;

the angle adjusting leg device comprises an angle adjusting mounting plate, a rotating shaft mounting plate, a rotating shaft seat and a limiting bolt; the angle adjusting mounting plate is fixed on the lower surface of the bedplate; the angle adjusting mounting plate is connected to the rotating shaft mounting plate through a rotating shaft and can rotate around the rotating shaft, and five limiting holes are formed in the arc edge of the angle adjusting mounting plate and respectively correspond to five different inclination angles of the bedplate; the rotating shaft mounting plate is provided with a limiting hole, and a limiting bolt is fixed on the limiting hole of the rotating shaft mounting plate through one limiting hole on the rotating mounting plate to adjust different space angles of the bedplate; the rotating shaft mounting plates are fixed on two sides of the rotating shaft seat, and the rotating shaft seat is fixed on the ground and provides support for the whole automobile door assembling clamp device; the upper surface of the bedplate is fixedly provided with a hanging ring and four identification blocks, and the identification blocks are arranged on the periphery of the bedplate and used for positioning marks when the vehicle door workpiece conveying and assembling equipment works;

the first clamping mechanism comprises a second support, a first clamping cylinder, a first pressing arm, a first positioning block, a third adjusting gasket, a first pressing block and a fourth adjusting gasket, wherein the second support is arranged on the upper surface of the bedplate, the upper end of the second support is L-shaped, the first positioning block compresses the third adjusting gasket and is fixed on a horizontal mounting surface of a L-shaped structure at the upper end of the second support, the contact surface of the first positioning block, which is contacted with a workpiece, is an arc surface, the arc surface is completely attached to the surface of a vehicle door workpiece at the clamping position, and is uniformly stressed, so that the surface of the vehicle door workpiece is prevented from being damaged by the first positioning block;

the second clamping mechanism base comprises a base side plate, a second clamping cylinder, a second sensor support, a third base reinforcing plate, a third sensor support, a first buffer, a base bottom plate, a first buffer block a, a second buffer block b and a third buffer block c; the base side plates are arranged on the base bottom plate, the two base side plates are parallel to each other, the base side plates are arranged into a first-stage step structure and a second-stage step structure, the middle of the second-stage step structure is rectangular hollow, a first rotating shaft hole is formed in the top end of the second-stage step structure, a second rotating shaft hole is formed in the side edge of the second-stage step structure, and an inclined boss is arranged above the second rotating shaft hole structure; the second clamping cylinder body is arranged on the upper surface of the base bottom plate, the piston rod is arranged on the rotating shaft of the first base, and the tail end of the piston rod is provided with a rod end joint bearing; the second sensor is arranged on the side surface of the base side plate through a second sensor bracket, and the detection direction of the second sensor is vertical to the inclined boss plane above the second rotating shaft hole structure; the third sensor is arranged on the side surface of the base side plate through a third sensor support, the third sensor is arranged on the same side as the second sensor, the third sensor is positioned above the rectangular hollow structure of the base side plate, and the detection direction of the third sensor is vertical to the plane of the base bottom plate; the first buffer is arranged on the side surface of the base side plate through a first buffer support, the first buffer is symmetrically arranged on the other side of the second sensor, and the buffering direction of the first buffer is vertical to an inclined boss plane above the second rotating shaft hole structure and is used for slowing down the rotating speed of the second clamping mechanism flat plate; the third base reinforcing plate is arranged inside the rectangular hollow structure of the base side plate and used for reinforcing the structural strength of the base side plate; the number of the first buffer blocks a is two, and the first buffer blocks a compress the adjusting gaskets and are fixed on the upper surfaces of the secondary steps of the side plates of the base; the second buffer block b compresses the adjusting gasket and is fixed on the upper surface of the inclined boss structure of the secondary step of the side plate of the base; the third buffer block c compresses the adjusting gasket and is fixed on the bottom surface of the third base reinforcing plate; the first buffer block a, the second buffer block b and the third buffer block c are used for limiting.

2. The precision-clamping door assembly system of the new energy automobile is characterized in that the first base rotating shaft comprises a first shaft sleeve, a first connecting rod, a second connecting rod, a first mandrel, a first flange bushing, a second mandrel, a first swing bolt, a second swing bolt, a first stop bolt, a second stop bolt and a fourth buffer block d; two ends of the first shaft sleeve are provided with a countersunk head hole structure; the first flange bushing is arranged on a counter bore structure of the first shaft sleeve and plays a role in protection, and the shaft and the base body are protected from direct abrasion; the first mandrel is installed inside the first flange bushing through a revolute pair, positioning shaft shoulders are arranged at two ends of the first mandrel to play a positioning role, the positioning shaft shoulders are arranged to prevent the first mandrel from shifting along the axial direction in the working process, and through holes are formed in the positioning shaft shoulders of the first mandrel to prevent the first mandrel from rotating; the first connecting rod is welded on the outer cylindrical surface of the first shaft sleeve, a third rotating shaft hole is formed in the upper end of the first connecting rod, a boss is arranged at the lower end of the first connecting rod, and the middle structural arc is excessive and is attached to the outer cylindrical surface of the first shaft sleeve; the arc structure in the middle of the first connecting rod is provided with a lightening hole; the second connecting rod is welded on the outer cylindrical surface of the first shaft sleeve, a fourth shaft hole is formed in the upper end of the second connecting rod, the lower end of the second connecting rod is an arc surface and is attached to the outer cylindrical surface of the first shaft sleeve, and the second connecting rod is close to the first connecting rod; the second mandrel is arranged on a third shaft hole at the upper end of the first connecting rod, and a through hole is formed in one end of the second mandrel; the first swing bolt penetrates through a through hole of the second mandrel, the second stop bolt penetrates through a round hole of the first swing bolt and is fixed on the side wall of the first connecting rod, and the second mandrel is fixed; the tail end of a piston rod of the second clamping cylinder is connected to the second mandrel, and a rod end joint bearing at the tail end of the piston rod of the second clamping cylinder is used for providing a rotating action; the second swing bolt penetrates through a through hole of the first spindle, the first stop bolt penetrates through a round hole of the second swing bolt and is fixed on the side wall of the base side plate, the first spindle is fixed, and the first shaft sleeve and the first flange bushing are used for providing rotation action; the fourth buffer block d is fixed on the boss plane at the lower end of the first connecting rod and used for providing buffering and limiting effects in the rotating process of the first connecting rod;

the second base rotating shaft comprises a second shaft sleeve, a second flange bushing, a third mandrel, a third swing bolt and a third stop bolt; two ends of the second shaft sleeve are arranged to be of a countersunk head hole structure, a plane is arranged on the outer circular surface of the second shaft sleeve, and the second clamping mechanism flat plate is fixed on the plane of the outer circular surface of the second shaft sleeve; the second flange bushing is arranged on the counter sink structure of the second shaft sleeve; the third mandrel is installed inside the second flange bushing through a revolute pair, and positioning shaft shoulders are arranged at two ends of the third mandrel and prevent the third mandrel from moving along the axial direction in the working process; a through hole is formed in the third mandrel positioning shaft shoulder to prevent the third mandrel from rotating; and a third swing bolt penetrates through a through hole of a third mandrel, a third stop bolt penetrates through a round hole of the third swing bolt and is fixed on the side wall of the base side plate, the third mandrel is fixed, and a second shaft sleeve and a second flange bushing are used for providing rotation action.

3. The precision-clamped door assembly system of the new energy automobile is characterized in that the first rotating shaft connecting piece comprises a first connecting rod, a thrust washer, a first bushing, a second bushing, a fourth spindle, a fifth spindle, a fourth swing bolt, a fifth swing bolt, a fourth stop bolt and a fifth stop bolt; round holes are formed in the upper end and the lower end of the first connecting rod; the fifth mandrel is arranged on a fourth shaft hole of the second connecting rod; the first connecting rod nested with the first bushing is installed on a fifth spindle through a revolute pair, and one end of the fifth spindle is provided with a through hole; a fifth swing bolt penetrates through a through hole of a fifth spindle, a fifth stop bolt penetrates through a round hole of the fifth swing bolt and is fixed on the side wall of the second connecting rod, and the fifth spindle is fixed; the second bushing is nested on the round hole at the upper end of the first connecting rod; the fourth mandrel is arranged on the second bushing through a revolute pair; one end of the fourth mandrel is provided with a through hole; a fourth swing bolt penetrates through a through hole of a fourth mandrel, a fourth stop bolt penetrates through a round hole of the fourth swing bolt and is fixed on the side wall of the second clamping mechanism flat plate, and the fourth mandrel is fixed; the thrust washers are four and are arranged at two ends of the fourth spindle and the fifth spindle; the first bushing and the second bushing play a role in protection, and the shaft and the base body are protected from direct abrasion; the thrust washer plays the guard action, avoids the direct contact wearing and tearing of head rod and shaft hole wall.

4. The accurately-clamped door assembling system of the new energy automobile is characterized in that the second clamping mechanism flat plate comprises a first clamping platform, a first stop block, a second stop block and a fifth shaft hole lifting lug; the first clamping platform is arranged on the plane of the outer circular surface of the second shaft sleeve; a groove is formed in the middle of one side of the first clamping platform, and the groove is arranged to prevent the first clamping platform from interfering with the second bracket in the process of rotating around the axis of the third spindle; the first stop block and the second stop block are arranged on the lower surface of the first clamping platform, correspond to the first buffer block a and the second buffer block b, and provide limiting effect on the rotation angle of the first clamping platform; the fifth shaft hole lifting lug is arranged on the lower surface of the first clamping platform, and the fourth mandrel is connected with the fifth shaft hole lifting lug and the first connecting rod and used for driving the first clamping platform to rotate.

5. The accurately-clamped door assembling system of the new energy automobile is characterized in that the number of the manual hinge clamps is two, and each manual hinge clamp comprises a clamping arm mounting seat, a left clamping arm and a right clamping arm; the hinge comprises a male hinge, a female hinge and a hinge pin;