Positioning and spin riveting device for parts
By designing the positioning riveting device in the production of automobiles according to the soundboard, and clamping the pins with the lifting mechanism and the U-shaped extrusion rod, the problem of reducing the finished product pass rate caused by the pin angle deviation is solved, and higher product quality and production efficiency are achieved.
Patent Information
- Application Number
- CN202411880313.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-28
AI Technical Summary
During the production process of automobile press plates, the pins are prone to reduce the final product pass rate due to angle deviation when connected by rotary rivets, which affects the output and product quality.
A riveting device for parts is designed, using technical means such as lifting mechanism and U-shaped extrusion rod. Through the insertion rod, the U-shaped extrusion rod is brought into contact with the third extrusion surface, which drives the U-shaped extrusion rod to clamp the pin to ensure that the pin does not rotate during the rivet.
It effectively improves the clamping stability of the pins, reduces the downtime rate, improves product quality and production efficiency, and reduces replacement costs and equipment costs.
Smart Images
Figure CN119702939A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of automobile click plate production, and in particular to a positioning riveting device for parts. Background Art
[0002] The original car was driven by a rudder. The violent vibrations generated by the car were transmitted to the driver, making it more difficult for him to control the direction. When the engine was installed at the front of the car, the driver could no longer use the rudder to steer the car due to the increase in weight. The new design of the steering wheel came into being. The gear system introduced between the driver and the wheel is flexible in operation and well isolates the violent vibrations from the road. Not only that, a good steering wheel system can also give the driver a feeling of intimacy with the road.
[0003] With the advancement of vehicle technology, the functions on the steering wheel are increasing. The most basic function is to honk the horn. The driver needs to press the middle position of the steering wheel. There is a metal button plate under the plastic shell. There are three pins connected to the button plate. Moving the pins downward can power on the horn and make a whistle sound.
[0004] The click plate and the pin are generally connected by riveting. During production, a robot is used to insert the pin into the mounting seat, and then the click plate is placed above the pin, and the upper end of the pin passes through the mounting hole on the click plate, and then the riveting is performed by a riveting device. A notch is provided on the pin, and the notch must be oriented toward the middle of the click plate. When performing the riveting connection, the pin is easily rotated with the riveting device, resulting in a pin angle deviation, causing a decrease in the qualified rate of the finished product, which is not conducive to improving production and product quality. Summary of the invention
[0005] In order to better fix the angle of the pin and improve the output and product quality, the present application provides a positioning riveting device for parts.
[0006] The present application provides a positioning riveting device for a component using the following technical solution:
[0007] A positioning riveting device for parts comprises a work table and a base plate, the base plate is provided with a lifting mechanism, three plug rods that can move up and down are installed on the lifting mechanism, the work table is located above the base plate, a connecting plate is fixed on the work table, a mounting plate is fixed on the connecting plate, three mounting blocks are fixed above the mounting plate, two transverse sliding holes and a longitudinal sliding hole perpendicular to the transverse sliding holes are provided on the mounting block, and a placement hole for placing pins is provided in the vertical direction of the mounting block, a fixed clamping surface is provided on one side of the placement hole, a movable clamping block is slidably provided in the longitudinal sliding hole, a movable clamping surface matching the fixed clamping surface is provided on the movable clamping block, the movable clamping surface and the fixed clamping surface are distributed on both sides of the placement hole for clamping the pin, and a first extrusion surface is provided on the side of the movable clamping block away from the movable clamping surface The U-shaped extrusion rod is slidably provided on the side end of the mounting block, and both ends of the U-shaped extrusion rod slide in the horizontal sliding holes at corresponding positions, and one side of the U-shaped extrusion rod is provided with a second extrusion surface, and the second extrusion surface is in contact with the first extrusion surface. As the U-shaped extrusion rod goes deeper into the mounting block, the second extrusion surface will squeeze the first extrusion surface, so that the movable clamping block moves in the direction close to the fixed clamping surface, and a third extrusion surface is provided at the bottom of the middle section of the U-shaped extrusion rod, and the third extrusion surface is located directly above the insertion rod at the corresponding position, and a thrust spring is provided on the back of the U-shaped extrusion rod for pushing the U-shaped extrusion rod to insert into the mounting block, and a passing groove is provided on the mounting block, and three second through grooves are provided on the mounting plate, and a first through groove is provided on the connecting plate, and the passing groove, the first through groove and the second through groove are all located directly above the insertion rod at the corresponding position, serving as a channel for the insertion rod to move upward.
[0008] By adopting the above technical solution, before inserting the pin, the lifting mechanism drives the insertion rod to move upward, and the top of the insertion rod passes through the first through slot and the second through slot in sequence, and abuts against the third extrusion surface. As the insertion rod continues to move upward, it drives the U-shaped extrusion rod to move away from the mounting block and compress the thrust spring. At this time, the second extrusion surface no longer extrudes the first extrusion surface. At this time, the mobile clamping block can move away from the fixed clamping surface, and the pin can be inserted into the placement hole by the manipulator. When the three pins are placed, the lifting mechanism drives the insertion rod to descend. After the insertion rod is lowered, the thrust spring extends and the U-shaped extrusion rod is inserted into the mounting block. At this time, the second extrusion surface will squeeze the first extrusion surface, driving the movable clamping block to move in the direction close to the fixed clamping surface. At this time, the pin can be clamped and fixed under the clamping action of the fixed clamping surface and the movable clamping surface. After that, the press plate can be placed and riveted through the riveting device to achieve the connection between the pin and the press plate. In addition, during the riveting process, the pin is clamped and will not rotate with it. The clamping is stable and the downtime rate is low, which can effectively improve product quality and production efficiency.
[0009] Preferably, a vertical square groove is opened in the vertical direction of the mounting block, and the vertical square groove is connected with the placement hole, and a fixed clamping block is inserted in the vertical square groove, the fixed clamping surface is arranged on the side end of the fixed clamping block close to the movable clamping block, and a supporting spring for propping the fixed clamping block and the movable clamping block apart is arranged, a fixed seat is fixed on the mounting plate, and three mounting cavities are arranged on the fixed seat, the mounting block is located in the mounting cavity, and a spring hole is arranged on the inner side wall of the mounting cavity, and the bottom of the spring hole is against the end of the thrust spring away from the U-shaped extrusion rod.
[0010] By adopting the above technical solution, the fixed clamping surface is set on the fixed clamping block. When producing pins of different specifications, only the movable clamping block and the fixed clamping block need to be replaced, and the remaining parts can continue to be used, thereby reducing the replacement cost. Moreover, the fixed clamping block can be separated, and when producing the installation block, the production process is simpler, thereby reducing the equipment cost.
[0011] Preferably, three notches are provided on the upper surface of the fixing seat, and gaskets for supporting the click board are fixed in the notches.
[0012] By adopting the above technical solution, when performing rotary riveting, the click plate needs to be placed on a fixed seat, and three gaskets provide support force for the click plate. When producing click plates of different specifications, gaskets of different thicknesses can be replaced, which is more convenient to use and has a lower replacement cost.
[0013] Preferably, the lifting mechanism includes four fixing columns fixed on the base plate, a fixing plate is fixed above the fixing columns, four through holes are opened on the fixing plate, and sliding sleeves are arranged in the through holes, a sliding rod is inserted in the sliding sleeve, a lifting plate is arranged on the upper end of the sliding rod, a mounting groove is opened on the lifting plate, the inserted rod is fixed in the mounting groove, a stabilizing plate is fixed at the bottom of the sliding rod, a plurality of circular holes are opened in the middle position of the stabilizing plate, a plurality of mounting rods are fixed on the lower surface of the fixing plate, the mounting rods pass through the circular holes at corresponding positions, and a cylinder is installed at the bottom of the plurality of mounting rods, and the piston rod end of the cylinder is fixed to the stabilizing plate by a connecting shaft.
[0014] By adopting the above technical solution, four fixed columns fix the fixed plate. When the cylinder is extended, the stabilizing plate can be lifted upward. Through the four sliding rods, the lifting plate is driven to move upward, and then the insertion rod is driven to move upward. The same structure is also used for descent. The four sliding rods are lifted and lowered together, and the lifting and lowering stability is relatively high.
[0015] Preferably, a U-shaped mounting frame is fixed to the upper end of the sliding rod, two clamping plates are fixed on both sides of the U-shaped mounting frame, the lifting plate is slidably arranged in the middle of the two clamping plates and is located above the U-shaped mounting frame, two positioning protrusions are fixed on the side of the upper surface of the U-shaped mounting frame away from the opening, and the positioning protrusions are abutted against one side of the lifting plate, pin holes are provided on both sides of the two open ends of the U-shaped mounting frame, and the lifting plate is provided with positioning holes aligned with the pin holes, and positioning pins are provided in the pin holes and the positioning holes at corresponding positions.
[0016] By adopting the above technical solution, the U-shaped mounting frame is fixed to the upper end of the sliding rod, one side of the lifting plate is blocked by the positioning protrusion, the other side is fixed by the positioning pin, and the other two sides are restricted by the clamping plate. The structure is relatively stable. During disassembly and installation, the positioning pin is removed from the pin hole, and the lifting plate can be slid in or out from the open side of the U-shaped mounting frame. The installation and disassembly process is simple, which is convenient for operators to assemble equipment and perform maintenance.
[0017] Preferably, the lifting plate is provided with three mounting holes, in which infrared sensors are installed, and the infrared sensors are located directly below the placement holes, with the probes facing upward, three first detection holes are provided on the connecting plate, and three second detection holes are provided on the mounting plate, and both the first detection holes and the second detection holes are directly above the infrared sensors.
[0018] By adopting the above technical solution, the probe of the infrared sensor can detect whether a pin is placed in the placement hole, which is convenient for controlling the stroke of the rotary riveting equipment and outputs a signal in time when a fault occurs, thereby ensuring efficient operation of the equipment.
[0019] Preferably, a socket is provided inside the insertion rod, and the upper end of the socket is open, a graphite strip is inserted in the socket, a spring groove is provided at the side end of the socket, and a lifting block is slidably provided in the spring groove and the socket, a push-out spring is provided at the bottom of the lifting block, a cavity is provided inside the insertion rod, the cavity is connected to the lower end of the spring groove, and a limit assembly for controlling the push-out length of the graphite strip is provided in the cavity.
[0020] By adopting the above technical solution, the graphite strip is inserted into the socket, and its bottom is supported by the lifting block, and the lifting block is supported by the ejection spring. When the insertion rod moves upward and contacts the third extrusion surface, the third extrusion surface will press the graphite strip into the socket, and the upper surface of the graphite strip will be against the third extrusion surface, and in the subsequent movement, the graphite will be smeared on the third extrusion surface, thereby reducing the friction between the third extrusion surface and the insertion rod, reducing the wear of parts, and reducing noise.
[0021] Preferably, the limiting assembly includes a fixed shaft fixed in the cavity and an arc-shaped guide plate fixed on the circumferential side of the fixed shaft, a swing rod is rotatably provided on the fixed shaft, a spring winder is rotatably provided on the swing rod, a partition is provided between the cavity and the spring groove, and a stop block is provided at the bottom of the partition, an elastic rope is connected between the partition and the swing rod, a thin rope is wound around the spring winder, one end of the thin rope passes around the arc-shaped guide plate, passes into the interior of the push-out spring from the bottom of the push-out spring, and extends upward along the push-out spring to connect with the lifting block.
[0022] By adopting the above technical solution, when the graphite strip is not in contact with the third extrusion surface, the push-out spring will pop the graphite strip upward, and the pop-up speed is relatively fast. At this time, the thin rope will be pulled, and the thin rope will quickly generate tension to drive the spring retractor and the swing rod to rotate along the fixed axis, so that the spring retractor is against the inner wall of the cavity. At this time, the spring retractor will be subject to friction resistance and stop rotating, and will not continue to release the thin rope. At this time, the length of the thin rope is limited, thereby limiting the pop-up length of the graphite strip. Moreover, when the graphite strip is squeezed by the third extrusion surface and retracted into the insertion hole, the thin rope is released downward, and the elastic rope will drive the swing rod and the spring retractor to separate from the inner wall of the cavity. At this time, the spring retractor will reel in the thin rope to ensure that the thin rope is taut. When the graphite strip is frictionally lost, the push-out spring will push the graphite strip upward. At this time, the pushing speed is relatively slow. The thin rope will drive the spring retractor to rotate, so that the thin rope can be released for a longer length, ensuring that the graphite strip can continue to be coated with graphite on the third extrusion surface, and a lubrication effect is achieved through graphite.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. Use the thrust spring to push the U-shaped extrusion rod into the mounting block and squeeze the mobile clamping block. The pin is clamped by the mobile clamping surface on the mobile clamping block and the fixed clamping surface in the mounting block. In the subsequent riveting process, the pin is ensured not to rotate, and after clamping, the pin will not deviate due to the matching clearance, thereby reducing the downtime rate and effectively improving the output and quality.
[0025] 2. With the help of the lifting mechanism, the insertion rod is lifted upward, and the insertion rod is against the third extrusion surface. As the insertion rod continues to move upward, it will drive the U-shaped extrusion rod to move away from the mounting block and compress the thrust spring. At this time, the second extrusion surface no longer squeezes the first extrusion surface. At this time, the mobile clamping block can move away from the fixed clamping surface. The pin can be inserted into the placement hole or the pin after riveting can be removed by the manipulator, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is an axonometric diagram of the overall structure of the present application;
[0027] Figure 2This is a schematic diagram of the structure of the connecting components on the work surface in this application;
[0028] Figure 3 This is a schematic diagram of the split structure of the connecting parts on the work surface in this application;
[0029] Figure 4 This is a schematic diagram of the disassembled structure of the internal components of the installation block in this application;
[0030] Figure 5 This is a schematic diagram of the structure of the mounting plate and the connecting plate in this application;
[0031] Figure 6 It is a schematic diagram of the structure of the fixing seat in this application;
[0032] Figure 7 It is a structural schematic diagram of the lifting mechanism in this application;
[0033] Figure 8 It is a schematic diagram of the structure of the installation components of the lifting plate in this application;
[0034] Fig. 9 It is a cross-sectional schematic diagram of the insertion rod in this application;
[0035] Fig.10 It is a partial cross-sectional schematic diagram of the insertion rod in this application;
[0036] Fig.11 For this application Fig.10 A schematic diagram of the enlarged structure at A in the middle;
[0037] Fig.12 The figure is a schematic diagram of the assembly structure of the click plate and the pin;
[0038] Figure numerals: 1, bottom plate; 2, work table; 3, lifting mechanism; 4, plug rod; 5, connecting plate; 6, mounting plate; 7, mounting block; 8, horizontal sliding hole; 9, longitudinal sliding hole; 10, placement hole; 11, fixed clamping surface; 12, movable clamping block; 13, movable clamping surface; 14, first extrusion surface; 15, U-shaped extrusion rod; 16, second extrusion surface; 17, third extrusion surface; 18, thrust spring; 19, first through groove; 20, second through groove; 21, passage groove; 22, vertical square groove; 23, fixed clamping block; 24, support spring; 25, fixed seat; 26, mounting cavity; 27, spring hole; 28, notch; 29, gasket; 30, fixed column; 31, fixed plate; 32, sliding sleeve; 3 3. Sliding rod; 34. Stabilizing plate; 35. Lifting plate; 36. Round hole; 37. Mounting rod; 38. Cylinder; 39. Mounting groove; 40. U-shaped mounting frame; 41. Clamp; 42. Positioning protrusion; 43. Pin hole; 44. Positioning hole; 45. Positioning pin; 46. Mounting hole; 47. Infrared sensor; 48. First detection hole; 49. Second detection hole; 50. Socket; 51. Graphite strip; 52. Spring groove; 53. Lifting block; 54. Push-out spring; 55. Fixed shaft; 56. Arc guide plate; 57. Swinging rod; 58. Spring winder; 59. Partition; 60. Elastic rope; 61. Stop block; 62. Thin rope; 63. Cavity; 100. Pressing plate; 200. Pin; 300. Notch. DETAILED DESCRIPTION
[0039] The following is combined with Figure 1-12 This application is described in further detail.
[0040] The embodiment of the present application discloses a positioning riveting device for parts.
[0041] refer to Fig.12 The pin 200 is connected to the click plate 100 by riveting, and a notch 300 is provided on the pin 200 , and the direction of the notch 300 needs to be toward the inner side of the click plate 100 .
[0042] It should be noted that in actual production, the rotary riveting equipment has a rotatable work surface 2 and a base plate 1 located at the bottom of the equipment. Multiple workstations are arranged on the work surface 2, and different steps are performed at different workstations, such as rotary riveting, placing parts, removing parts and testing, etc. These are all existing technologies and will not be elaborated here.
[0043] Reference Figure 1The positioning riveting device for parts includes a work surface 2 and a base plate 1. A connecting plate 5 is provided on the work surface 2. Three mounting blocks 7 for placing and clamping the pins 200 are provided on the connecting plate 5. An insertion rod 4 is provided below the connecting plate 5. A lifting mechanism 3 for controlling the lifting and lowering movement of the insertion rod 4 is provided on the base plate 1. When the insertion rod 4 is inserted upward into the mounting block 7, the locking effect of the internal parts of the mounting block 7 on the pin 200 can be released. In addition, an infrared sensor 47 is installed next to the insertion rod 4 to detect whether the pin 200 is inserted into the mounting block 7.
[0044] Through the above-mentioned arrangement, the insertion rod 4 is first moved upward by the lifting mechanism 3, and then when the pin 200 is inserted, the pin 200 is placed in the mounting block 7 by the manipulator, and the direction of the notch 300 is adjusted. After that, the lifting mechanism 3 drives the insertion rod 4 to descend. At this time, the mounting block 7 can fix the pin 200, and it will not rotate during the subsequent riveting process, thereby reducing the downtime rate and effectively improving the output and quality. In addition, the probe of the infrared sensor 47 can detect whether the pin 200 is inserted in the mounting block 7, which is convenient for controlling the stroke of the riveting equipment and outputting signals in time when a fault occurs, thereby ensuring efficient operation of the equipment.
[0045] Reference Figure 2-6A mounting plate 6 is fixed on the connecting plate 5, and three mounting blocks 7 are fixed on the top of the mounting plate 6. The mounting block 7 is provided with two transverse sliding holes 8 and a longitudinal sliding hole 9 perpendicular to the transverse sliding hole 8, and the mounting block 7 is provided with a placement hole 10 for placing the pin 200 in the vertical direction, the placement hole 10 intersects with the longitudinal sliding hole 9, and a vertical square groove 22 is provided next to the placement hole 10, the vertical square groove 22 partially overlaps with the placement hole 10, a fixed clamping block 23 is inserted in the vertical square groove 22, a fixed clamping surface 11 is provided on one side of the fixed clamping block 23, and a movable clamping block 12 is slidably provided in the longitudinal sliding hole 9, The movable clamping block 12 is provided with a movable clamping surface 13 matching the fixed clamping surface 11, and the movable clamping surface 13 and the fixed clamping surface 11 are distributed on both sides of the placement hole 10 for clamping the pin 200, and a support spring 24 for holding the fixed clamping block 23 and the movable clamping block 12 apart is provided, and the other side of the movable clamping block 12 is provided with an inclined first extrusion surface 14, and a U-shaped extrusion rod 15 is slidably provided at the side end of the mounting block 7, and the two ends of the U-shaped extrusion rod 15 slide in the transverse sliding holes 8 at the corresponding positions, and the two sides of the U-shaped extrusion rod 15 are respectively located at the fixed clamping block 23 and the movable clamping block 12. On the outside of the tightening block 12, one side of the U-shaped extrusion rod 15 is provided with a second extrusion surface 16, and the second extrusion surface 16 is in contact with the first extrusion surface 14. When the U-shaped extrusion rod 15 penetrates into the mounting block 7, the second extrusion surface 16 will squeeze the first extrusion surface 14, so that the movable clamping block 12 moves toward the direction close to the fixed clamping surface 11. A third extrusion surface 17 is provided below the U-shaped extrusion rod 15. The third extrusion surface 17 is located directly above the insertion rod 4 at the corresponding position. A fixing seat 25 is fixed on the mounting plate 6, and three mounting cavities 26 are provided on the fixing seat 25. The mounting block 7 is located in the mounting cavity 26. A spring hole 27 is provided on the inner wall of the U-shaped extrusion rod 15, and a thrust spring 18 is provided in the spring hole 27 for pushing the U-shaped extrusion rod 15 into the mounting block 7. Three notches 28 are provided on the upper surface of the fixing seat 25, and a gasket 29 for supporting the sound plate 100 is fixed in the notch 28, and the gasket 29 is replaceable. A through groove 21 is provided on the mounting block 7, three second through grooves 20 are provided on the mounting plate 6, and a first through groove 19 is provided on the connecting plate 5. The through groove 21, the first through groove 19 and the second through groove 20 are all located directly above the insertion rod 4 at the corresponding position, serving as a channel for the insertion rod 4 to move upward.
[0046] When the insertion rod 4 rises, the top of the insertion rod 4 passes through the first through slot 19, the second through slot 20 and finally inserts into the through slot 21. During the rising process, the top of the insertion rod 4 abuts against the third extrusion surface 17. As the insertion rod 4 continues to move upward, it will drive the U-shaped extrusion rod 15 to move away from the mounting block 7 and compress the thrust spring 18. At this time, the support spring 24 will move the movable clamping block 12 away from the fixed clamping block 23. The pin 200 can be inserted into the placement hole 10 by the manipulator. When the three pins 200 are placed, the lifting mechanism 3 drives the insertion rod 4 to descend. After the insertion rod 4 descends, The thrust spring 18 is extended to insert the U-shaped extrusion rod 15 into the mounting block 7. At this time, the second extrusion surface 16 will squeeze the first extrusion surface 14, driving the movable clamping block 12 to approach the fixed clamping block 23. At this time, the pin 200 can be clamped and fixed under the clamping action of the fixed clamping surface 11 and the movable clamping surface 13. After that, the sound plate 100 is placed and then riveted by a riveting device to achieve the connection between the pin 200 and the sound plate 100. In addition, during the riveting process, the pin 200 is clamped and will not rotate with the rotation. The clamping is stable and the downtime rate is low, which can effectively improve product quality and production efficiency.
[0047] Moreover, the fixed clamping block 23 and the mounting block 7 are designed to be split and can be replaced. When producing pins 200 of different specifications, only the movable clamping block 12 and the fixed clamping block 23 need to be replaced, and the remaining parts can continue to be used, thereby reducing replacement costs. Moreover, the fixed clamping block 23 can be separated, and when producing the mounting block 7, the production process is simpler, thereby reducing equipment costs.
[0048] In addition, when performing rotary riveting, the click plate 100 needs to be placed on the fixing seat 25, and three gaskets 29 provide support force for the click plate 100. When producing click plates 100 of different specifications, gaskets 29 of different thicknesses can be replaced, which is more convenient to use and has a lower replacement cost.
[0049] refer to Figure 7 The lifting mechanism 3 includes four vertically arranged fixing columns 30 fixed on the base plate 1, a fixing plate 31 is fixed above the fixing columns 30, the fixing plate 31 is located directly below the connecting plate 5, four through holes are provided on the fixing plate 31, and sliding sleeves 32 are provided in the through holes, a sliding rod 33 that can slide up and down is inserted in the sliding sleeve 32, a lifting plate 35 is provided at the upper end of the sliding rod 33, and a stabilizing plate 34 is fixed at the lower end, a mounting groove 39 is provided on the lifting plate 35, and the insertion rod 4 is fixed in the mounting groove 39, and a plurality of circular holes 36 are provided in the middle position of the stabilizing plate 34, and a plurality of mounting rods 37 for mounting a cylinder 38 are fixed on the lower surface of the fixing plate 31, the mounting rods 37 pass through the circular holes 36 at corresponding positions, and the cylinder 38 is installed at the bottom of the mounting rods 37, and the piston rod end of the cylinder 38 is fixed to the stabilizing plate 34 by a connecting shaft, so that the cylinder 38 can drive the stabilizing plate 34 to rise and fall.
[0050] Through the above-mentioned arrangement, the four fixing columns 30 fix the fixing plate 31, and the stability is relatively high. When the cylinder 38 is extended, the stabilizing plate 34 can be lifted upward, and the lifting plate 35 is driven to move upward through the four sliding rods 33, thereby driving the insertion rod 4 to move upward. The same structure also works for descent, and the four sliding rods 33 are lifted and lowered together, and the lifting stability is relatively high. In addition, the position of the cylinder 38 can be set below the base plate 1, which is convenient for connection with the gas path of the production base and is also convenient for maintenance.
[0051] refer to Figure 8 A U-shaped mounting frame 40 is fixed to the upper end of the slide bar 33, and two clamping plates 41 are fixed on both sides of the U-shaped mounting frame 40. The lifting plate 35 is slidably arranged in the middle of the two clamping plates 41, and the lower surface of the lifting plate 35 is against the top of the U-shaped mounting frame 40. The two sides of the lifting plate 35 are restricted by the clamping plates 41 and cannot be separated from the U-shaped mounting frame 40 upward. Two positioning protrusions 42 are fixed on the upper surface of the middle section of the U-shaped mounting frame 40, and the positioning protrusions 42 are against one side of the lifting plate 35. Pin holes 43 are set on both sides of the open end of the U-shaped mounting frame 40, and the lifting plate 35 is provided with a pin hole 43 that is aligned with the pin hole 43. 3, a positioning pin 45 is arranged in the pin hole 43 and the positioning hole 44 at the corresponding position, which is used to fix the lifting plate 35, and three mounting holes 46 are opened on the lifting plate 35, and the infrared sensor 47 is installed in the mounting hole 46, with the probe facing upward, three first detection holes 48 are opened on the connecting plate 5, and three second detection holes 49 are opened on the mounting plate 6, and the first detection holes 48 and the second detection holes 49 are both directly above the infrared sensor 47, so that the probe of the infrared sensor 47 can pass through the mounting plate 6 and the connecting plate 5, and detect that there is a pin 200 in the placement hole 10.
[0052] By removing the positioning pin 45 from the pin hole 43, the lifting plate 35 and the infrared sensor 47 installed above can be slid out from the opening side of the U-shaped mounting frame 40. The disassembly process is simple and the installation effect can be achieved in the same way, which is convenient for operators to assemble and repair the equipment.
[0053] refer to Figure 9-11The plug rod 4 has a socket 50 formed inside, and the upper end of the socket 50 is open, a graphite strip 51 is inserted into the socket 50, a spring groove 52 is formed at the side of the socket 50, and a lifting block 53 is slidably provided in the spring groove 52 and the plug rod 50, the bottom of the graphite strip 51 abuts against the lifting block 53, and a push-out spring 54 is provided at the bottom of the lifting block 53, a cavity 63 connected to the lower end of the spring groove 52 is provided inside the plug rod 4, a fixed shaft 55 and an arc-shaped guide plate 56 arranged around the fixed shaft 55 are provided in the cavity 63, and the cavity 63 and the spring groove 52 are connected. A partition 59 is arranged between them, and a stopper 61 is arranged at the bottom of the partition 59, a swing rod 57 is rotatably arranged on the fixed shaft 55, and a spring winder 58 is rotatably arranged on the swing rod 57, an elastic rope 60 is connected between the partition 59 and the swing rod 57, and under the action of the elastic rope 60, the swing rod 57 is pressed against the stopper 61, and a thin rope 62 is wound around the spring winder 58, one end of the thin rope 62 passes around the arc guide plate 56, passes into the inside of the push-out spring 54 from the bottom of the push-out spring 54, and extends upward along the push-out spring 54 to be connected with the lifting block 53.
[0054] The graphite strip 51 is inserted into the insertion hole 50, and the push-out spring 54 supports it from the bottom. When the insertion rod 4 moves upward and contacts the third extrusion surface 17, the third extrusion surface 17 will press the graphite strip 51 into the insertion hole 50, and the upper surface of the graphite strip 51 will still be against the third extrusion surface 17, and in the subsequent movement, the graphite powder will be smeared on the third extrusion surface 17, and the friction between the third extrusion surface 17 and the insertion rod 4 will be reduced by the lubrication effect of the graphite powder, the wear of the parts will be reduced, and the noise can be reduced. When the graphite strip 51 is not in contact with the third extrusion surface 17, the push-out spring 54 will pop the graphite strip 51 upward, and the pop-up speed is relatively fast, at this time, the thin rope 62 will be pulled, and the thin rope 62 will quickly generate tension to drive the spring retractor 58 and the swing rod 57 to rotate along the fixed shaft 55, so that the spring retractor 58 is against the inner wall of the cavity 63, and the spring retractor 58 will be affected. The thin rope 62 stops rotating due to the frictional resistance of the inner wall of the cavity 63 and will not continue to release the thin rope 62. At this time, the length of the thin rope 62 is limited, which in turn limits the ejection length of the graphite strip 51, which can prevent the graphite strip 51 from being ejected too long and breaking. Moreover, when the graphite strip 51 is squeezed by the third extrusion surface 17 and retracted into the insertion hole 50, the thin rope 62 is released downward, and the elastic rope 60 drives the swing rod 57 and the spring winder 58 to separate from the inner wall of the cavity 63. At this time, the spring winder 58 will wind up the thin rope 62 to ensure that the thin rope 62 is taut. When the graphite strip 51 is frictionally worn, the push-out spring 54 pushes the graphite strip 51 upward. At this time, the pushing speed is slow, and the thin rope 62 drives the spring winder 58 to rotate, while the swing rod 57 does not rotate, so that the thin rope 62 can be released to a longer length, ensuring that the graphite strip 51 can continue to be coated with graphite on the third extrusion surface 17, and a lubrication effect is achieved through graphite.
[0055] The implementation principle of a positioning riveting device for a component of the embodiment of the present application is as follows: before inserting the pin 200, the cylinder 38 drives the insertion rod 4 to move upward, and the top of the insertion rod 4 passes through the first through slot 19 and the second through slot 20 in sequence, and abuts against the third extrusion surface 17. As the insertion rod 4 continues to move upward, it drives the U-shaped extrusion rod 15 to move away from the mounting block 7 and compresses the thrust spring 18. At this time, the support spring 24 moves the movable clamping block 12 away from the fixed clamping block 23. The pin 200 can be inserted into the placement hole 10 by the manipulator. When the three pins 200 are placed, the lifting mechanism 3 drives the insertion rod 4 to move upward. 4 descends, and after the insertion rod 4 descends, the thrust spring 18 extends, and the U-shaped extrusion rod 15 is inserted into the mounting block 7. At this time, the second extrusion surface 16 will squeeze the first extrusion surface 14, driving the movable clamping block 12 to approach the fixed clamping block 23. At this time, the pin 200 can be clamped and fixed under the clamping action of the fixed clamping surface 11 and the movable clamping surface 13. After that, the pressing plate 100 is placed and then riveted by the riveting device to achieve the connection between the pin 200 and the pressing plate 100. In addition, during the riveting process, the pin 200 is clamped and will not rotate with it. The clamping is stable and the downtime rate is low, which can effectively improve product quality and production efficiency.
[0056] In addition, the graphite strip 51 is inserted into the insertion hole 50, and the push-out spring 54 supports it from the bottom. When the insertion rod 4 moves upward and contacts the third extrusion surface 17, the graphite powder is smeared on the third extrusion surface 17. The lubricating effect of the graphite powder reduces the friction between the third extrusion surface 17 and the insertion rod 4, reduces the wear of the parts, and can reduce noise. When the graphite strip 51 is not in contact with the third extrusion surface 17, the push-out spring 54 will pop the graphite strip 51 upward, and the pop-up speed is relatively fast. The thin rope 62 will quickly swing the rod 57 along the fixed axis 55, so that the spring winder 58 is against the inner wall of the cavity 63. At this time, the spring winder 58 will be affected by the friction resistance of the inner wall of the cavity 63 and stop rotating, thereby limiting the pop-up length of the graphite strip 51 and preventing the graphite strip 51 from being popped out too long and breaking.
[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A positioning riveting device for parts, comprising a work surface (2) and a bottom plate (1), characterized in that: The bottom plate (1) is provided with a lifting mechanism (3), and three insertion rods (4) capable of moving up and down are installed on the lifting mechanism (3). The work surface (2) is located above the bottom plate (1), and a connecting plate (5) is fixed on the work surface (2), and a mounting plate (6) is fixed on the connecting plate (5). Three mounting blocks (7) are fixed above the mounting plate (6), and two transverse sliding holes (8) and one longitudinal sliding hole (9) are provided on the mounting block (7), and a placement hole (10) for placing a pin (200) is provided in the vertical direction. 0), a fixed clamping surface (11) is arranged on one side of the placement hole (10), a movable clamping block (12) is slidably arranged in the longitudinal sliding hole (9), a movable clamping surface (13) matching the fixed clamping surface (11) is arranged on the movable clamping block (12), the movable clamping surface (13) and the fixed clamping surface (11) are distributed on both sides of the placement hole (10) and are used to clamp the pin (200), and a first extrusion surface (14) is arranged on the side of the movable clamping block (12) away from the movable clamping surface (13), and a U-shaped extrusion rod is slidably arranged on the side end of the mounting block (7) (15), and both ends of the U-shaped extrusion rod (15) slide in the transverse sliding holes (8) at corresponding positions, one side of the U-shaped extrusion rod (15) is provided with a second extrusion surface (16), and the second extrusion surface (16) is in contact with the first extrusion surface (14), as the U-shaped extrusion rod (15) goes deeper into the mounting block (7), the second extrusion surface (16) will squeeze the first extrusion surface (14), so that the movable clamping block (12) moves in a direction close to the fixed clamping surface (11), and the bottom of the middle section of the U-shaped extrusion rod (15) is provided with a third extrusion surface (17), and the third extrusion surface (16) is in contact with the first extrusion surface (14). The pressing surface (17) is located just above the insertion rod (4) at the corresponding position, and a thrust spring (18) is arranged on the back of the U-shaped extrusion rod (15) for pushing the U-shaped extrusion rod (15) to be inserted into the mounting block (7). A passage groove (21) is provided on the mounting block (7), three second passage grooves (20) are provided on the mounting plate (6), and a first passage groove (19) is provided on the connecting plate (5). The passage groove (21), the first passage groove (19) and the second passage groove (20) are all located just above the insertion rod (4) at the corresponding position, serving as a channel for the insertion rod (4) to move upward.
2. A positioning riveting device for parts according to claim 1, characterized in that: A vertical square groove (22) is provided in the vertical direction of the mounting block (7), and the vertical square groove (22) is connected to the placement hole (10), and a fixed clamping block (23) is inserted in the vertical square groove (22), the fixed clamping surface (11) is arranged at the side end of the fixed clamping block (23) close to the movable clamping block (12), and a support spring (24) for holding the fixed clamping block (23) and the movable clamping block (12) apart is arranged between the fixed clamping block (23) and the movable clamping block (12), a fixed seat (25) is fixed on the mounting plate (6), and three mounting cavities (26) are arranged on the fixed seat (25), the mounting block (7) is located in the mounting cavity (26), and a spring hole (27) is arranged on the inner side wall of the mounting cavity (26), and the bottom of the spring hole (27) abuts against one end of the thrust spring (18) away from the U-shaped extrusion rod (15).
3. The positioning riveting device for parts according to claim 2 is characterized in that: The upper surface of the fixing seat (25) is provided with three notches (28), and gaskets (29) for supporting the soundboard (100) are fixed in the notches (28).
4. The positioning riveting device for parts according to claim 1, characterized in that: The lifting mechanism (3) comprises four fixing columns (30) fixed on the bottom plate (1), a fixing plate (31) is fixed above the fixing columns (30), four through holes are provided on the fixing plate (31), and a sliding sleeve (32) is provided in the through hole, a sliding rod (33) is inserted in the sliding sleeve (32), a lifting plate (35) is provided at the upper end of the sliding rod (33), a mounting groove (39) is provided on the lifting plate (35), the insertion rod (4) is fixed in the mounting groove (39), a stabilizing plate (34) is fixed at the bottom of the sliding rod (33), a plurality of circular holes (36) are provided in the middle position of the stabilizing plate (34), a plurality of mounting rods (37) are fixed on the lower surface of the fixing plate (31), the mounting rods (37) pass through the circular holes (36) at corresponding positions, and a cylinder (38) is installed at the bottom of the plurality of mounting rods (37), and the piston rod end of the cylinder (38) is fixed to the stabilizing plate (34) by a connecting shaft.
5. The positioning riveting device for parts according to claim 4 is characterized in that: A U-shaped mounting frame (40) is fixed to the upper end of the slide bar (33), two clamping plates (41) are fixed on both sides of the U-shaped mounting frame (40), the lifting plate (35) is slidably arranged in the middle of the two clamping plates (41) and is located above the U-shaped mounting frame (40), two positioning protrusions (42) are fixed on the side of the upper surface of the U-shaped mounting frame (40) away from the opening, and the positioning protrusions (42) are abutted against one side of the lifting plate (35), pin holes (43) are arranged on both sides of the opening end of the U-shaped mounting frame (40), and a positioning hole (44) aligned with the pin hole (43) is arranged on the lifting plate (35), and a positioning pin (45) is arranged in the pin hole (43) and the positioning hole (44) at the corresponding position.
6. A positioning riveting device for parts according to claim 5, characterized in that: The lifting plate (35) is provided with three mounting holes (46), an infrared sensor (47) is installed in the mounting hole (46), and the infrared sensor (47) is located directly below the placement hole (10), with the probe facing upwards; the connecting plate (5) is provided with three first detection holes (48), and the mounting plate (6) is provided with three second detection holes (49), and both the first detection holes (48) and the second detection holes (49) are directly above the infrared sensor (47).
7. The positioning riveting device for parts according to claim 1, characterized in that: The insert rod (4) is provided with an insert hole (50) at the upper end thereof, a graphite strip (51) is inserted into the insert hole (50), a spring groove (52) is provided at the side end of the insert hole (50), a lifting block (53) is slidably provided in the spring groove (52) and the insert hole (50), a push-out spring (54) is provided at the bottom of the lifting block (53), a cavity (63) is provided inside the insert rod (4), the cavity (63) is communicated with the lower end of the spring groove (52), and a limit assembly for controlling the push-out length of the graphite strip (51) is provided in the cavity (63).
8. A positioning riveting device for parts according to claim 7, characterized in that: The limiting assembly comprises a fixed shaft (55) fixed in the cavity (63) and an arc-shaped guide plate (56) fixed on the circumference of the fixed shaft (55); a swing rod (57) is rotatably arranged on the fixed shaft (55); a spring reel (58) is rotatably arranged on the swing rod (57); a partition (59) is arranged between the cavity (63) and the spring groove (52); a stopper (61) is arranged at the bottom of the partition (59); an elastic rope (60) is connected between the partition (59) and the swing rod (57); a thin rope (62) is wound around the spring reel (58); one end of the thin rope (62) bypasses the arc-shaped guide plate (56), passes through the inside of the ejection spring (54) from the bottom of the ejection spring (54), and extends upward along the ejection spring (54) to be connected to the lifting block (53).