Maintenance-free connector dust cover assembling device and assembling method thereof
Technical Field
The invention relates to a maintenance-free connector dust cover assembling device and an assembling method thereof, and relates to the field of automobile pull rod connector assembling.
Background
With the continuous development of the commercial vehicle industry, the demand of the pull rod is continuously increased, and the joint is used as the most important mechanism of the pull rod and is a key part for ensuring the stability and the safety of automobile operation, so that the joint is called a life-saving part. The dust cover can prevent that the dust from the fitting surface entering bulb round pin, increases bulb round pin's life, and its life is very big to the influence that the pull rod connects. For the effectual fastening dust cover, there is the recess in the bulb seat, and there is the arch the lower part of dust cover, and the arch of dust cover is embedded into the recess of bulb seat in for making the leakproofness stronger and assemble the fastening, the protruding excircle diameter in the dust cover bottom is less than ball seat recess edge diameter, causes the assembly difficulty.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a maintenance-free connector dust cover assembling device and an assembling method thereof.
In order to solve the technical problem, the invention provides a maintenance-free connector dust cover assembling device which comprises a sliding mechanism, a spreading mechanism, a fixed clamping mechanism and a workbench, wherein the sliding mechanism is vertically arranged on the workbench through welding, and a line rail drives the spreading mechanism to slide up and down to complete dust cover assembling; the opening mechanism is arranged on the sliding mechanism through a screw, and the radial stretching of the bottom diameter of the dust cover is realized through the movement of the cylinder; the fixed clamping mechanism is fixed on the workbench through a screw and is responsible for fixing and clamping the joint assembly; the center of the fixed clamping mechanism coincides with the center of the spreading mechanism, and the whole spreading mechanism is driven to move up and down by the up-and-down movement of the piston rod of the movable cylinder, so that the assembly of the dust cover and the pull rod joint component is completed.
The opening mechanism comprises a thin-wall cylinder I, a fixed plate I, a hexagonal connecting plate, a hook plate, a dust cover pressing block, a connecting hinge I, a connecting plate I and a nut connecting I; the first fixing plate is mounted on the sliding mechanism through screws, the first thin-wall cylinder is fixed above the first fixing plate through screws, and the hexagonal connecting plate is fixed below the first fixing plate through screws; the hexagonal connecting plate fixes one end of each of six hook plates through a pin shaft, and the hook plates can rotate around the pin shafts; one end of the nut is connected with the first thin-wall cylinder through threads, and the other end of the nut is connected with the first connecting plate through threads; the boss hole at the bottom edge of the first connecting plate is connected with a first twelve connecting hinges through pin shafts, the first connecting hinges can rotate around the pin shafts, and the other sides of the first connecting hinges are connected with the hook plates; the dust cover pressing block is provided with a groove, two sides of the dust cover pressing block are fixed on the hook plate through pin shafts, and the pin shafts can slide in the groove; when a piston rod of the thin-wall cylinder moves up and down, the nut connection drives the connecting plate to move up and down, and the hinge connected with the connecting plate drives the hook plate to complete the opening and closing actions, so that the radial stretching of the dust cover is realized;
the hook plates are six in number and are uniformly distributed on the periphery of the hexagonal connecting plate at an angle of 60 degrees.
The sliding mechanism comprises a moving cylinder, a T-shaped nut, a second fixing plate, a bracket, a precise linear rail and a linear rail sliding block, the bracket is welded on the workbench, and the moving cylinder is fixed above the bracket through a screw; the top of a piston rod of the moving cylinder is connected with a T-shaped nut through threads, and the lower edge of the T-shaped nut is embedded into a second fixing plate; the precise linear rail is fixed on the bracket through a screw, the linear rail sliding block is matched with the precise linear rail, and the back of the linear rail sliding block is fixed on the fixing plate II through a screw; and the movable cylinder drives the T-shaped nut to move after ventilation, and the T-shaped nut drives the second fixing plate to slide along the rail of the linear rail.
The fixed clamping mechanism comprises a pressing plate, a second connecting hinge, a second connecting plate, a second nut connecting plate, a second hexagonal connecting plate, a second thin-wall cylinder and a supporting seat, wherein the second thin-wall cylinder is fixed below the workbench through screws, and the second hexagonal connecting plate is fixed above the workbench through screws; the upper end of the nut connecting block is connected with the connecting plate II through an external thread, and the lower end of the nut connecting block is connected with the thin-wall cylinder II through an internal thread; two ends of the second connecting hinge are connected with the pressing plate and the second connecting plate through pin shafts respectively, and the hinge can rotate around the pin shafts; the bottom end hole of the pressing plate is connected with the second hexagonal connecting plate through a pin shaft, and the pressing plate can rotate around the pin shaft connected with the second hexagonal connecting plate; the supporting seat is fixed on the second connecting plate through screws; when two piston rods of the thin-wall cylinder move up and down, the pressing plate completes opening and closing, and the joint assembly is fixed.
The invention also provides an assembling method of the maintenance-free connector dust cover assembling device, which comprises the following steps:
(1) the dust cover is placed in the opening mechanism, and the protruding part of the hook plate of the opening mechanism is placed in the bottom ring of the dust cover;
(2) the ball pin and the joint combination of the ball seat are arranged in the fixed clamping mechanism, the ball seat is arranged in the supporting seat groove, the ball seat handle is arranged in the imitated groove, and the ball pin is vertically upward; buckling the guide cone groove to the threaded end of the ball pin;
(3) the thin-wall cylinder I of the spreading mechanism is ventilated, and the piston rod drives the hook plate to enlarge the bottom diameter of the dust cover through the hinge structure;
(4) a thin-wall cylinder II of the fixed clamping mechanism is ventilated, and a piston rod drives a pressing plate to fix and clamp the ball seat through a hinge structure;
(5) the movable cylinder is ventilated, and the piston rod drives the opening mechanism to move downwards along the precise linear rail;
(6) when the spreading mechanism moves downwards to a certain degree, the pressing plate of the fixed clamping mechanism supports the bottom ring of the dust cover, the spreading mechanism descends again, the dust cover gradually breaks away from the hook plate, and the dust cover is embedded into the groove of the ball seat under the influence of the resilience performance of the dust cover, so that the assembly of the dust cover is completed;
(7) the three cylinders of the fixed clamping mechanism, the sliding mechanism and the opening mechanism are ventilated, the piston rod of the cylinder returns to the original position, and the whole assembly action is completed.
(8) The adapter assembly is removed, the guide cone is removed, the two are placed on the appropriate station tool, and the next assembly is started.
Has the beneficial effects that: the invention realizes the semi-automatic assembly of the dust cover, greatly reduces the labor intensity of workers, omits complicated manual actions, greatly saves the labor intensity, improves the working efficiency and increases the assembly precision and the consistency of products. Has the advantages of compact structure and simple operation.
Drawings
FIG. 1 is a front view of the present invention in a schematic configuration;
FIG. 2 is a schematic side view of the structure of the present invention;
FIG. 3 is a front view of the distracting mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of the spreader mechanism of the present invention after placement of the dust cover;
FIG. 5 is a schematic view of the dust boot of the present invention in an expanded position;
FIG. 6 is a schematic front view of the slider mechanism of the present invention;
FIG. 7 is a schematic side view of the slider mechanism of the present invention;
FIG. 8 is a front view of the fixing and clamping mechanism of the present invention;
FIG. 9 is a rear cross-sectional view of the fixing ball seat of the fixing clamping mechanism of the present invention;
FIG. 10 is a schematic view of the contact state between the fixed clamping mechanism and the spreading mechanism according to the present invention.
In the figure: 1. a sliding mechanism; 2. a distraction mechanism; 3. fixing the clamping mechanism; 4. a work table; 5. a thin-wall cylinder I; 6. a first fixing plate; 7. a hexagonal connecting plate; 8. a hook plate; 9. a dust cover pressing block; 10. the first connecting hinge; 11. a first connecting plate; 12. the screw nut is connected with the first screw nut; 13. a moving cylinder; 14. a T-shaped nut; 15. a second fixing plate; 16. a support; 17. a precision wire track; 18. a linear rail slider; 19. pressing a plate; 20. a second connecting hinge; 21. a second connecting plate; 22. the nut is connected with the second nut; 23. a second hexagonal connecting plate; 24. a thin-wall cylinder II; 25. a supporting seat; 26. a ball pin; 27. a ball seat; 28. a guide cone; 29. a dust cover.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-10, the invention provides a maintenance-free connector dust cover assembling device, which comprises a sliding mechanism 1, a spreading mechanism 2, a fixed clamping mechanism 3 and a workbench 4, wherein the sliding mechanism 1 is vertically installed on the workbench 4 through welding, and drives the spreading mechanism to slide up and down along a linear rail, so that the dust cover assembly is completed; the expanding mechanism 2 is arranged on the sliding mechanism 1 through a screw, and the radial stretching of the bottom diameter of the dust cover is realized through the movement of the cylinder; the fixed clamping mechanism 3 is fixed on the workbench 4 through a screw to fix and clamp the joint assembly; the center of the fixed clamping mechanism 3 coincides with the center of the expanding mechanism 2, the whole expanding mechanism 2 is driven to move up and down by the up-and-down movement of the piston rod of the movable air cylinder, and the assembly of the dust cover 29 and the joint component is completed in the shortest distance.
The expanding mechanism 2 comprises a thin-wall cylinder I5, a fixing plate I6, a hexagonal connecting plate 7, a hook plate 8, a dust cover pressing block 9, a connecting hinge I10, a connecting plate I11 and a nut connecting I12; the first fixing plate 6 is mounted on the sliding mechanism 1 through screws, the thin-wall cylinder 5 is fixed above the first fixing plate through screws, and the hexagonal connecting plate 7 is fixed below the first fixing plate through screws; the hexagonal connecting plate 7 fixes one end of six hook plates 8 through pin shafts, and the hook plates 8 can rotate around the pin shafts; one end of the nut connecting rod 12 is connected with the thin-wall cylinder 5 through threads, and the other end of the nut connecting rod is connected with the connecting plate 11 through threads; the boss hole at the bottom edge of the first connecting plate 11 is connected with a first twelve connecting hinges 10 through pin shafts, the first connecting hinges 10 can rotate around the pin shafts, and the other sides of the first connecting hinges 10 are connected with the hook plates 8; the dust cover pressing block 9 is provided with a groove, two sides of the dust cover pressing block 9 are fixed on the hook plate 8 through pin shafts, the pin shafts can slide in the groove, when the hook plate support is opened and closed, the pin shafts on the hook plate move in the dust cover pressing block groove, the distance between the dust cover pressing block and the hook plate is ensured to be unchanged, and the position of the dust cover is ensured to be fixed during assembly; when the piston rod of the thin-wall cylinder 5 moves up and down, the screw nut is connected with the screw nut 12 to drive the connecting plate 11 to move up and down, and the hinge connected with the connecting plate drives the hook plate 8 to complete the opening and closing actions, so that the radial stretching of the dust cover is realized.
The six hook plates 8 are uniformly distributed on the periphery of the hexagonal connecting plate 7 at an angle of 60 degrees, and when the dust cover is unfolded by the unfolding mechanism, the unfolding diameter of the dust cover is ensured to be minimum, and the deformation of the dust cover is minimum; correspondingly, six dust cover press blocks 9 are arranged, the contact positions of the press blocks and the ball head seat adopt a profiling design, and the fixing and clamping are firmer.
The sliding mechanism 1 comprises a moving cylinder 13, a T-shaped nut 14, a second fixing plate 15, a bracket 16, a precise linear rail 17 and a linear rail slider 18, the bracket 16 is welded on the workbench 4, the moving cylinder 13 is fixed above the bracket 16 through a screw, and a cylinder piston rod moves up and down; the top of a piston rod of the moving cylinder 13 is connected with a T-shaped nut 14 through threads, and the lower edge of the T-shaped nut 14 is embedded into a second fixing plate 15; the precise linear rail 17 is fixed on the bracket 16 through a screw, the linear rail sliding block 18 is matched with the precise linear rail 17, and the back of the linear rail sliding block 18 is fixed on the second fixing plate 15 through a screw; after the movable air cylinder 13 is ventilated, the T-shaped nut 14 is driven to move, and the T-shaped nut 14 drives the second fixing plate 15 to slide along the track of the linear rail.
The fixed clamping mechanism 3 comprises a pressing plate 19, a second connecting hinge 20, a second connecting plate 21, a second nut connecting 22, a second hexagonal connecting plate 23, a second thin-wall cylinder 24 and a supporting seat 25, wherein the second thin-wall cylinder 24 is fixed below the workbench 4 through screws, and the second hexagonal connecting plate 23 is fixed above the workbench 4 through screws; the center of the second hexagonal connecting plate 23 is superposed with the center of the second thin-wall cylinder 24; the upper end of the second nut connecting block 22 is connected with the second connecting plate 21 through external threads, and the lower part of the second nut connecting block is connected with the second thin-wall cylinder 24 through internal threads; two ends of the second connecting hinge 20 are respectively connected with the pressing plate 19 and the second connecting plate 21 through pin shafts, and the hinge can rotate around the pin shafts; the bottom end hole of the pressing plate 19 is connected with the second hexagonal connecting plate 23 through a pin shaft, and the pressing plate 19 can rotate around the pin shaft connected with the second hexagonal connecting plate 23; the supporting seat 25 is fixed on the second connecting plate 21 through a screw; when the piston rod of the thin-wall cylinder II 24 moves up and down, the pressure plate 19 completes opening and closing, and the joint component is fixed.
The bottom surface of the second hexagonal connecting plate 23 is connected with the base, and the peripheral bosses are connected with the pressing plate through pin shafts; one end of the pressure plate is connected with the peripheral bosses of the second hexagonal connecting plate 23 through pin shafts, the middle of the pressure plate is connected with the second connecting hinge 20 through pin shafts, and the pressure plate can rotate around the connecting points; one end of the second connecting hinge 20 is connected with the second connecting plate 21 through a pin shaft and can rotate around the connecting point, and the other end of the second connecting hinge is connected with the pressing plate and can rotate around the connecting point; the positioning support seat is fixed on the second connecting plate 21 through screws.
After the thin-wall cylinder II 24 is ventilated, the nut connecting II 22 and the connecting plate II 21 are driven to move, one end of the connecting hinge I10 is driven by the connecting plate I11, the other end of the connecting hinge I drives the hook plate 8 to move, and the hook plate 8 rotates around the bottom pin shaft.
The pin hole boss of the first connecting plate 11 of the fixed clamping mechanism 3 and the pin hole boss of the second connecting plate 21 of the spreading mechanism 2 are staggered at a certain angle, so that the six pressing plates 19 are prevented from interfering with the six hook plates 8 when descending.
The invention also provides an assembling method of the maintenance-free connector dust cover assembling device, which comprises the following steps:
(1) the dust cover 29 is placed in the opening mechanism 2, and the convex part of the hook plate 8 of the opening mechanism 2 is placed in the bottom ring of the dust cover;
(2) the joint combination of the ball pin 26 and the ball seat 27 is arranged in the fixed clamping mechanism 3, the ball seat 27 is arranged in the groove of the supporting seat 25, the ball seat handle is arranged in the imitated groove, and the ball pin 26 is vertically upward; the guide cone 28 is slotted into the threaded end of the ball pin 26;
(3) the thin-wall cylinder I5 of the spreading mechanism 2 is ventilated, and the piston rod drives the hook plate 8 to enlarge the bottom diameter of the dust cover 29 through a hinge structure;
(4) a thin-wall cylinder II 24 of the fixed clamping mechanism 3 is ventilated, and a piston rod drives a pressing plate 19 to fix and clamp a ball seat 27 through a hinge structure;
(5) the movable cylinder 13 is ventilated, and the piston rod drives the expanding mechanism 2 to move downwards along the precise linear rail 17;
(6) when the spreading mechanism 2 moves downwards to a certain degree, the pressing plate 19 of the fixed clamping mechanism 3 supports the bottom ring of the dust cover 29, the spreading mechanism 2 descends again, the dust cover 29 is gradually separated from the hook plate 8, the dust cover is embedded into the groove of the ball seat under the influence of the self resilience performance, and the assembly of the dust cover is completed;
(7) the three cylinders of the fixed clamping mechanism 3, the sliding mechanism 1 and the opening mechanism 2 are ventilated, the piston rod of the cylinder returns to the original position, and the whole assembly action is completed after the whole mechanism returns to the original position.
(8) The adapter assembly is removed, the guide cone 28 is removed, the two are placed on the appropriate station tool, and the next assembly is started.
The invention has high automation degree, reduces the labor intensity and improves the working efficiency; simple structure, easy operation, the facilitate promotion can greatly improve the assembly efficiency of dust cover and joint to can guarantee to connect the uniformity of assembly.
The above-described embodiments of the invention are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the invention are intended to be embraced therein.