A handlebar counterweight pressing and riveting device and its process

Abstract

This invention discloses a handlebar counterweight riveting device and its process, comprising: a worktable for providing a riveting station; and a riveting mechanism disposed on the worktable for riveting the handlebar tube. The riveting mechanism includes a push plate, which is translated by the pushing and pulling action of a push-pull rod fixed on the worktable for bearing and unloading the handlebar tube. A fixed seat is movably connected to the outer surface of the push plate, which is fixed on the worktable. An arc groove is formed on the outer surface of the fixed seat, and two sets of abutments are provided on the outside of the fixed seat. The outer surface of one set of abutments is movably connected to the outer surface of the worktable. This invention relates to the field of riveting technology and solves the problems of existing riveting machines, where the positioning of the riveting part of the workpiece requires manual operation, which is time-consuming and labor-intensive. Furthermore, during multiple riveting processes, the position and direction of the station still need to be manually adjusted, resulting in low actual riveting efficiency.

Description

Technical Field

[0001] This invention relates to the field of riveting technology, specifically to a riveting device and process for a handlebar counterweight. Background Technology

[0002] Traditionally, when processing handlebar tubes, punching is performed, then counterweights are placed inside both ends of the handlebar tube, and welding is done through punching. This method has low processing efficiency and poor forming effect. Currently, a press riveting process is used for production. However, existing press riveting machines are difficult to effectively and accurately align the press riveting parts with the workpiece to be press riveted, which can easily lead to problems such as unstable connection, deformation, and tilting of the press riveting parts. In the invention patent application number CN201410231059.1, a press riveting nut press riveting machine is disclosed, which includes a worktable, a feeding table, and a controller. It can accurately fix the press riveting nut in the pre-set hole of the workpiece, the workpiece is easy to change, and the degree of automation is high.

[0003] Although this device has the advantages mentioned above, it still has the following drawbacks in practical use:

[0004] 1) During use, the riveting holes of the workpiece need to be manually positioned, and the loading and unloading of the workpiece also need to be manually operated, resulting in low actual riveting processing efficiency.

[0005] 2) When multiple riveting processes are required on a workpiece, the use of this device necessitates manual adjustment of the workpiece's position and orientation, which further reduces the efficiency of the riveting process.

[0006] Therefore, it is necessary to address the shortcomings that still exist in existing devices. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a handlebar counterweight riveting device and its process, which solves the problems of existing riveting machines where manual operation is required for positioning the riveting part of the workpiece, resulting in time-consuming and labor-intensive positioning, and the need for manual adjustment of the position and direction of the workstation during multiple riveting processes, leading to low actual riveting processing efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a handlebar counterweight riveting device, comprising:

[0009] The workbench is used to provide a riveting station;

[0010] The riveting mechanism is set on the workbench and is used for riveting the handlebar tubes. The riveting mechanism includes a push plate, which is translated by the push-pull action of a push-pull rod fixed on the workbench. It is used for bearing and unloading the handlebar tubes. The outer surface of the push plate is movably connected to a fixed seat, which is fixed on the workbench. The outer surface of the fixed seat has an arc groove. Two sets of abutments are set on the outside of the fixed seat. The outer surface of one set of abutments is movably connected to the outer surface of the workbench, and the outer surface of the other set of abutments is movably connected to the outer surface of the push plate. A punch is set on the outside of the other set of abutments. The punch is used for riveting the handlebar tubes.

[0011] The flipping assembly is located below the push plate and performs multiple riveting processes at equal radial angles by driving the handlebar tube to rotate.

[0012] The linkage assembly is set on the workbench and is used for centering and limiting the handlebar tubes.

[0013] Preferably, the body of another set of abutments has a through groove, and a pressing rod is provided inside the groove. The outer surface of the pressing rod is fixedly connected to the outer surface of the push plate, and the output end of the pressing rod is fixedly connected to the outer surface of the punch. The abutment is provided with two slot plates on the outside. The outer surface of one slot plate is fixedly connected to the top of the fixed seat, and the other slot plate is fixedly connected to the support leg of the worktable.

[0014] Preferably, the flipping assembly includes a key shaft, which is disposed outside the push plate. The outer surface of the key shaft is fitted with a rubber sleeve. Two rotary cylinders for driving the key shaft to rotate and adjust are disposed outside the key shaft. The outer surfaces of the two rotary cylinders are fixedly connected to the bottom of the push plate. The output ends of the two rotary cylinders are fixedly connected to a rotating frame. The outer surfaces of the two rotating frames are fixedly connected to a flipping motor. The output ends of the two flipping motors are fixedly connected to the two ends of the key shaft respectively through couplings.

[0015] Preferably, the drive assembly includes a drive motor, the outer surface of which is fixedly connected to the outer surface of the worktable, the output end of which is fixedly connected to a lead screw via a coupling, the outer surface of which is threaded with a helical tube, one end of which is fixedly connected to an arc strip, the outer surface of which is slidably connected to the outer surface of the worktable, the outer surface of which is fixedly connected to a connecting plate, and the outer surface of which is fixedly connected to the outer surface of another set of abutments.

[0016] Preferably, the outer surface of the arc bar is movably connected to a slide, the outer surface of the slide bar is embedded and fixedly connected to the outer surface of a set of abutments, one side of the outer surface of the slide bar is slidably connected to the body of the worktable, the body of the arc bar is provided with a through abutment groove, abutment post is movably connected inside the abutment groove, and one end of the abutment post is fixedly connected to the outer surface of the slide bar.

[0017] Preferably, a feeding unit is provided on the outside of the arc strip. The feeding unit includes a material trough, which is inverted T-shaped and opened on the body of a set of abutments and is in a through state. One side of the inside of the material trough is coaxial with the arc groove, and a slide cylinder is slidably connected inside the material trough.

[0018] Preferably, a rotating roller is rotatably connected inside the slide cylinder, a pusher motor is fixedly connected to the outer surface of the rotating roller, the outer surface of the pusher motor is fixedly connected to the inside of the material trough, a spiral groove is opened on the outer surface of the rotating roller, a swivel block is movably connected inside the spiral groove, and the outer surface of the swivel block is fixedly connected to the inside of the slide cylinder.

[0019] Preferably, a feeding module is provided on the outside of the material trough. The feeding module includes a material pipe, the inside of which is connected to the inside of the material trough. The outer surface of the material pipe is fixedly connected to the outer surface of a set of abutments. Two baffles are slidably connected through the inside of the material pipe. A rack is fixedly connected to the outer surface of each of the two baffles. A gear meshes between the outer surfaces of the two racks. A rotating rod is fixedly connected through the body of the gear. A torsion spring is sleeved on the outer surface of the rotating rod. A frame is fixedly connected to the outside of the material pipe. The outer surface of the baffles is movably connected to the outer surface of the frame. The end of the rotating rod is rotatably connected to the outer surface of the frame. The two ends of the torsion spring are fixedly connected to the gear and the outer surface of the frame, respectively.

[0020] Preferably, a winding motor is fixedly connected to the outer surface of the frame, a drum is fixedly connected to the output end of the winding motor, a cable is wound around the outer surface of the drum, one end of the cable is slidably connected to the body of the frame, and the other end of the cable is fixedly connected to the outer surface of a rack on one side.

[0021] This invention also discloses a handlebar counterweight pressing and riveting process, which specifically includes the following steps:

[0022] Step 1: Use a robotic arm to place the handlebar tube to be riveted on the upper slot plate. Then, the push plate abuts against the fixed seat to support it. Then, the movement of the screw tube drives the two sets of abutments through the arc strip and connecting plate to center and limit the handlebar tube.

[0023] Step 2: The vibratory feeder adds the counterweights into the feed tube. Through the movement of the baffles on both sides, the counterweights are added into the feed trough one by one. The sliding cylinder pushes the counterweights into the handlebar tube. Then, the extrusion rod drives the punch to perform a riveting process on the handlebar tube.

[0024] Step 3: The flip motor drives the key shaft and rubber sleeve to rotate. Through the contact friction between the rubber sleeve and the handlebar tube, the handlebar tube rotates accordingly. Then, the punch performs equal-angle riveting on the handlebar tube. After the riveting is completed, when the push plate and the stop seat move to reset, the handlebar tube is abutted by the stop seat on the other side and is unloaded through the lower slot plate.

[0025] Beneficial effects

[0026] This invention provides a handlebar counterweight pressing and riveting device and its process. Compared with the prior art, it has the following advantages:

[0027] (1) By setting up a riveting mechanism, the handlebar tube can be supported by the separate movement of the push plate and the two sets of abutments, and the centering and limiting functions of the handlebar tube can be realized simultaneously, thereby improving the positioning efficiency. The guide function of the slot plate can realize automatic feeding, and the abutment function of the set of abutments can realize automatic unloading of the workpiece during the resetting process of the riveting process.

[0028] (2) By setting up a flipping component, the contact friction between the rubber roller and the handlebar tube is utilized, and then driven by the flipping motor, the handlebar tube is rotated, thereby enabling multiple riveting processes at the radial and equal angles to improve the stability of the riveting after riveting.

[0029] (3) By setting up a drive assembly, the rotation of the drive motor and the threaded connection of the lead screw and the screw tube are used to make the screw tube drive the connecting plate and the arc strip to move horizontally. The displacement difference between the two ends and the middle part of the arc strip is used to push a set of abutments laterally, so that the two sets move synchronously, realize the centering and limiting of the handlebar tube, and thus improve the rapid positioning function of the riveting part.

[0030] (4) By setting up a feeding unit, the counterweight enters the other side through the inside of the material trough. At the same time, by utilizing the spiral groove and the spiral block's spiral contact, as well as the forward and reverse rotation of the pusher motor, the reciprocating motion of the slide can be used to push the counterweight into the inside of the handlebar tube end after the handlebar tube is positioned, thereby improving the overall riveting efficiency.

[0031] (5) By setting up a feeding module, the winding and releasing of the cable by the drum, the compression and rebound of the torsion spring, and the meshing of the two racks and gears, the two baffles move synchronously in opposite directions to separate the counterweights stored inside the material tube one by one, thereby improving the efficiency and effect of the riveting process. Attached Figure Description

[0032] Figure 1 This is a perspective view of the external structure of the present invention;

[0033] Figure 2 This is a perspective view of the external structure of the punch of the present invention;

[0034] Figure 3 This is a perspective view of the external structure of the key shaft of the present invention;

[0035] Figure 4 This is a perspective view of the external structure of the solenoid of the present invention;

[0036] Figure 5 This is a perspective view of the internal structure of the abutment of the present invention;

[0037] Figure 6 This is a perspective view of the external structure of the frame of the present invention;

[0038] Figure 7 This is a schematic diagram of the overall structure of the handlebar tube of the present invention;

[0039] Figure 8 This is an exploded view of the overall structure of the handlebar tube of the present invention.

[0040] In the diagram: 1. Worktable; 2. Push plate; 3. Tilting assembly; 31. Key shaft; 32. Rubber sleeve; 33. Rotary cylinder; 34. Rotating frame; 35. Tilting motor; 4. Push-pull rod; 5. Fixed base; 6. Arc groove; 7. Abutment; 8. Drive assembly; 81. Drive motor; 82. Lead screw; 83. Screw; 84. Arc strip; 85. Feeding unit; 851. Material trough; 852. Feeding module; 8521. Material pipe; 8522. 8523. Baffle; 8524. Rack; 8525. Gear; 8526. Rotating rod; 8527. Torsion spring; 8528. Frame; 8529. Winding motor; 8520. Drum; 853. Slide drum; 854. Rotating roller; 855. Pusher motor; 856. Spiral groove; 857. Rotating block; 86. Connecting plate; 87. Slide carriage; 88. Abutment groove; 89. Abutment column; 9. Punch; 10. Through groove; 11. Extrusion rod; 12. Groove plate. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1-6 This invention provides a technical solution: a handlebar counterweight riveting device.

[0043] Example 1: Refer to the attached instruction manual Figure 1 Appendix Figure 2 ;

[0044] The system includes a workbench 1, with a riveting mechanism on its exterior. The riveting mechanism includes a push plate 2, with a push-pull rod 4 fixedly connected to the outer surface of the push plate 2. The push-pull rod 4 is made of hydraulic rod and connected to an external control circuit. The outer surface of the push-pull rod 4 is movably connected to the outer surface of the workbench 1. A fixed seat 5 is movably connected to the outer surface of the push plate 2, and the outer surface of the fixed seat 5 is fixedly connected to the outer surface of the workbench 1. An arc groove 6 is formed on the outer surface of the fixed seat 5. The inner diameter of the arc groove 6 matches the outer diameter of the handlebar tube and covers half of the handlebar tube surface. The lower part of the arc groove 6 is flush with the surface of the push plate 2 to ensure that the handlebar tube can be pushed into the arc groove 6. Two sets of abutments 7 are provided on the exterior of the fixed seat 5. The outer surface of one set of abutments 7 is movably connected to the outer surface of the workbench 1, and the outer surface of the other set of abutments 7 is flush with the outer surface of the push plate 2. The outer surface of the push plate 2 is movably connected. Another set of abutments 7 is provided with a punch 9 on its exterior. The punch 9 is used for riveting the handlebar tube. The body of the other set of abutments 7 has a through groove 10. The inside of the through groove 10 is provided with a pressing rod 11. The pressing rod 11 is made of hydraulic rod and is connected to an external control circuit. The outer surface of the pressing rod 11 is fixedly connected to the outer surface of the push plate 2. The output end of the pressing rod 11 is fixedly connected to the outer surface of the punch 9. The abutment 7 is provided with two slot plates 12 on its exterior. The two slot plates 12 are arranged one above the other and inclined downwards. A mechanical arm for gripping the handlebar tube is provided on the outer side of the upper slot plate 12. A collection box is provided on one side of the lower slot plate 12. The outer surface of one slot plate 12 is fixedly connected to the top of the fixed seat 5. The other slot plate 12 is fixedly connected to the support leg of the worktable 1.

[0045] In this embodiment, the output end of the push-pull rod 4 first extends, causing the push plate 2 to move and fit against the fixed seat 5. Then, the robotic arm picks up the processed handlebar tube and places it on the upper slot plate 12, allowing it to automatically roll onto the push plate 2. Next, two sets of abutments 7 move to abut the handlebar tube. One set centers the handlebar tube by abutting both ends, while the other pushes the handlebar tube into the arc groove 6, thereby laterally limiting the handlebar tube. Then, the output end of the extrusion rod 11 extends, driving the punch 9 to press and rivet the handlebar tube. After processing, the push plate 2 and abutments 7 reset one after another. The handlebar tube falls under the abutment action of the abutments 7 and falls into the collection box through the lower slot plate 12 for unified collection.

[0046] Example 2: Based on Example 1, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 3 ;

[0047] The push plate 2 is externally equipped with a flipping assembly 3, which includes a key shaft 31. The key shaft 31 is located outside the push plate 2, and a rubber sleeve 32 is fitted on the outer surface of the key shaft 31. The connection between the rubber sleeve 32 and the key shaft 31 allows for stable radial rotation, and axial sliding facilitates disassembly and replacement. Two rotary cylinders 33 are provided outside the key shaft 31 for driving the key shaft 31 to rotate and adjust. The rotary cylinders 33 are connected to an external control circuit. The outer surfaces of the two rotary cylinders 33 are fixedly connected to the bottom of the push plate 2. The output ends of the two rotary cylinders 33 are fixedly connected to a rotating frame 34. The outer surfaces of the two rotating frames 34 are fixedly connected to a flipping motor 35. The flipping motor 35 is electrically connected to the external control circuit. The output ends of the two flipping motors 35 are fixedly connected to both ends of the key shaft 31 through couplings.

[0048] In this embodiment, when radial multiple riveting is required on the handlebar tube, the output end of the push-pull rod 4 retracts, causing the push plate 2 to reverse and reset. Then, the output end of the rotary cylinder 33 drives the key shaft 31 to rotate through the rotating frame 34, so that the rubber sleeve 32 contacts the surface of the handlebar tube. Then, the flip motor 35 drives the key shaft 31 and the rubber sleeve 32 to rotate. Through the contact friction between the rubber sleeve 32 and the handlebar tube, the handlebar tube rotates and adjusts its position, thereby performing equal-angle multiple riveting to improve the quality and stability of the riveting.

[0049] Example 3: Based on Example 2, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 4 ;

[0050] The abutment 7 is externally equipped with a drive assembly 8, which includes a drive motor 81. The drive motor 81 is made of servo motor and is electrically connected to an external control circuit. The outer surface of the drive motor 81 is fixedly connected to the outer surface of the worktable 1. The output end of the drive motor 81 is fixedly connected to a lead screw 82 via a coupling. The outer surface of the lead screw 82 is threaded with a screw tube 83. One end of the screw tube 83 is fixedly connected to an arc strip 84. There is a displacement difference between the center and both sides of the arc strip 84, which can push a set of abutments 7 to move from the side plate to center the handlebar tube. The outer surface of the arc strip 84 is fixed to the worktable 1. The outer surface of the spiral tube 83 is slidably connected, and the outer surface of the spiral tube 83 is fixedly connected to the connecting plate 86. The outer surface of the connecting plate 86 is fixedly connected to the outer surface of another set of abutments 7. The outer surface of the arc strip 84 is movably connected to the slide 87. The cross-section of the slide 87 is rectangular, which can improve the stability of a set of abutments 7. The outer surface of the slide 87 is embedded and fixedly connected to the outer surface of a set of abutments 7. One side of the outer surface of the slide 87 is slidably connected to the body of the worktable 1. The body of the arc strip 84 has a through groove 88. The inside of the groove 88 is movably connected to the abutment post 89. One end of the abutment post 89 is fixedly connected to the outer surface of the slide 87.

[0051] In this embodiment, when the abutment 7 needs to abut against the handlebar tube, the drive motor 81 drives the lead screw 82 to rotate. Through the threaded connection between the lead screw 82 and the screw tube 83, the screw tube 83 drives the connecting plate 86 and the arc strip 84 to slide axially. The connecting plate 86 directly pushes another set of abutments 7 to abut against the handlebar tube. At the same time, the movement of the arc strip 84 changes the position of the abutment post 89 inside the abutment groove 88, and by using the displacement difference, the slide 87 pushes a set of abutments 7 to abut against the end of the handlebar tube.

[0052] Example 4: Based on Example 3, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 5 ;

[0053] A feeding unit 85 is provided on the outside of the arc strip 84. The feeding unit 85 includes a material trough 851, which is inverted T-shaped and is formed on the body of a set of abutments 7 and is in a through state. One side of the inside of the material trough 851 is coaxial with the arc groove 6, and the inner diameter of the two is the same. This allows the material trough 851 to be directly connected to the inside of the handlebar tube after the set of abutments 7 contacts the end of the handlebar tube. At the same time, the cross-sectional dimension of the upper side of the material trough 851 is adapted to the axial cross-sectional dimension of the counterweight. A slide cylinder 853 is slidably connected inside the material trough 851. The slide cylinder 853 can push the counterweight in through reciprocating motion. Inside one end of the handlebar tube, a roller 854 is rotatably connected to the inside of the slide cylinder 853. A pusher motor 855 is fixedly connected to the outer surface of the roller 854. The pusher motor 855 is made of servo motor and is electrically connected to an external control circuit. The outer surface of the pusher motor 855 is fixedly connected to the inside of the material trough 851. A spiral groove 856 is opened on the outer surface of the roller 854. A rotating block 857 is movably connected inside the spiral groove 856. There are two rotating blocks 857, one on the left and one on the right, so that the slide cylinder 853 is balanced by force. The outer surface of the rotating block 857 is fixedly connected to the inside of the slide cylinder 853.

[0054] In this embodiment, when the counterweight falls from the upper side to the lower side of the material trough 851, the pusher motor 855 drives the rotating roller 854 to rotate in both directions. Through the spiral groove 856 and the spiral block 857, the slide cylinder 853 is pushed to move horizontally and reciprocally inside the material trough 851, thereby pushing the counterweight into the interior of one end of the handlebar tube.

[0055] Example 5: Based on Example 4, refer to the appendix of the instruction manual. Figure 5 Appendix Figure 6 ;

[0056] A feeding module 852 is provided on the outside of the material trough 851. The feeding module 852 includes a material tube 8521. A vibratory feeder is provided on the outside of the initial position of the material tube 8521 to uniformly and neatly add the counterweights into the material tube 8521 for storage. The inside of the material tube 8521 is connected to the inside of the material trough 851. The outer surface of the material tube 8521 is fixedly connected to the outer surface of a set of abutments 7. Two baffles 8522 are slidably connected through the inside of the material tube 8521. One side of the surface of the baffles 8522 can be chamfered to facilitate... To better contact the counterweights and separate the stacked counterweights one by one, racks 8523 are fixedly connected to the outer surfaces of both baffles 8522. Gears 8524 mesh between the outer surfaces of the two racks 8523. A rotating rod 8525 is fixedly connected through the body of the gear 8524. A torsion spring 8526 is sleeved on the outer surface of the rotating rod 8525. The torsion spring 8526 can cause the baffles 8522 to reverse and reset by rebounding. A fixing frame 8527 is fixedly connected to the outside of the material tube 8521. The main body is provided with cable perforations, and the inner side of the perforation end is rounded to avoid scratching the cable. The outer surface of the baffle 8522 is movably connected to the outer surface of the frame 8527. The end of the rotating rod 8525 is rotatably connected to the outer surface of the frame 8527. The two ends of the torsion spring 8526 are fixedly connected to the gear 8524 and the outer surface of the frame 8527, respectively. A winding motor 8528 is fixedly connected to the outer surface of the frame 8527. The winding motor 8528 is made of servo motor and is connected to an external control... The control circuit is electrically connected, and the output end of the winding motor 8528 is fixedly connected to the drum 8529. The drum 8529 pulls the rack 8523 to move by winding the cable, which can reduce space occupation and reduce the size of the equipment. On the one hand, it can avoid motion interference with other structures, and on the other hand, it can reduce the influence of inertia on the stability of a set of abutments 7. The outer surface of the drum 8529 is wrapped with a cable. One end of the cable is slidably connected to the body of the frame 8527, and the other end of the cable is fixedly connected to the outer surface of the rack 8523 on one side.

[0057] In this embodiment, the vibratory feeder neatly stores the counterweights inside the feed tube 8521. When riveting is required, the winding motor 8528 first drives the drum 8529 to rotate to wind the cable, thereby pulling the upper rack 8523 and the baffle 8522 to move. This causes the upper baffle 8522 to disengage from the counterweights. When the upper rack 8523 moves, it meshes with the gear 8524, causing the gear 8524 to drive the rotating rod 8525 to rotate and compress the torsion spring 8526, thereby passing through the lower rack. The meshing of gear 8523 and gear 8524 causes the lower baffle 8522 to move synchronously in the opposite direction and enter the material tube 8521 to receive the counterweight. Then, the winding motor 8528 reverses and releases the tension, and the upper baffle 8522 enters the material tube 8521 and contacts the counterweight adjacent to the lowermost counterweight. Through contact with it and the lower baffle 8522 resetting and disengaging from contact with the lowermost counterweight, the lowermost counterweight is separated and falls into the material trough 851. By repeating the above steps, the counterweights can be separated one by one.

[0058] This invention also discloses a handlebar counterweight pressing and riveting process, which specifically includes the following steps:

[0059] Step 1: Use a robotic arm to place the handlebar tube to be riveted on the upper slot plate 12. Then, push plate 2 abuts against fixed seat 5 to support it. Then, the screw tube 83 moves through arc strip 84 and connecting plate 86 to drive two sets of abutment seats 7 to center and limit the handlebar tube.

[0060] Step 2: The vibratory feeder adds the counterweights into the material tube 8521. Through the movement of the two side baffles 8522, the counterweights are added into the material trough 851 one by one. The counterweights are pushed into the handlebar tube by the sliding cylinder 853. Then the extrusion rod 11 drives the punch 9 to perform riveting on the handlebar tube.

[0061] Step 3: The flip motor 35 drives the key shaft 31 and the rubber sleeve 32 to rotate. Through the contact friction between the rubber sleeve 32 and the handlebar tube, the handlebar tube rotates. Then, the punch 9 performs equal-angle riveting on the handlebar tube. After the riveting is completed, when the push plate 2 and the abutment 7 move to reset, the handlebar tube is abutted by the abutment 7 on the other side and is unloaded through the lower slot plate 12.

[0062] The final product is obtained through the above process. (Specific details to be discussed...) Figure 7-8 As shown, the handlebar tube surface is not punched and welded, but directly formed by press riveting using special equipment, which is more efficient. The punching process and welding process are eliminated, simplifying the original three processes into one press riveting process, saving time and labor. Previously, three processes required three people to complete, producing only about 2,200 pieces a day. Now, one machine can produce 2,500 pieces a day.

[0063] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handlebar counterweight pressing and riveting device, characterized in that: include: Workbench (1), the workbench (1) is used to provide a riveting station; The riveting mechanism is set on the workbench (1) and is used for riveting the handlebar tube. The riveting mechanism includes a push plate (2). The push plate (2) is translated by the push-pull action of the push-pull rod (4) fixed on the workbench (1) and is used for bearing and unloading the handlebar tube. The outer surface of the push plate (2) is movably connected to a fixed seat (5). The fixed seat (5) is fixed on the workbench (1). The outer surface of the fixed seat (5) is provided with an arc groove (6). The lower part of the arc groove (6) is flush with the surface of the push plate (2). Two sets of abutments (7) are provided on the outside of the fixed seat (5). The outer surface of one set of abutments (7) is movably connected to the outer surface of the workbench (1). The outer surface of the other set of abutments (7) is movably connected to the outer surface of the push plate (2). The other set of abutments (7) is provided with a punch (9). The punch (9) is used for radial riveting of the handlebar tube. The flipping component (3) is located below the push plate (2) and performs multiple riveting processes at equal radial angles by driving the handlebar tube to rotate. The drive assembly (8) is set on the workbench (1) and is used for centering and limiting the handlebar tube; The drive assembly (8) includes a drive motor (81), the outer surface of which is fixedly connected to the outer surface of the worktable (1), the output end of which is fixedly connected to a lead screw (82) via a coupling, the outer surface of which is threadedly connected to a screw tube (83), one end of which is fixedly connected to an arc strip (84), the outer surface of which is slidably connected to the outer surface of the worktable (1), the outer surface of which is fixedly connected to a connecting plate (86), and the outer surface of which is fixedly connected to the outer surface of another set of abutments (7); The outer surface of the arc strip (84) is movably connected to a slide (87). The outer surface of the slide (87) is embedded and fixedly connected to the outer surface of a set of abutments (7). One side of the outer surface of the slide (87) is slidably connected to the body of the worktable (1). The body of the arc strip (84) has a through groove (88). The inside of the groove (88) is movably connected to a post (89). One end of the post (89) is fixedly connected to the outer surface of the slide (87). The arc strip (84) is provided with a feeding unit (85) on its outside. The feeding unit (85) includes a material trough (851). The material trough (851) is inverted T-shaped and is opened on the body of a set of abutments (7) and is in a through state. One side of the inside of the material trough (851) is coaxial with the arc groove (6). The inside of the material trough (851) is slidably connected to a slide cylinder (853), and the counterweight is pushed into the handlebar tube by the push action of the slide cylinder (853).

2. The handlebar counterweight riveting device according to claim 1, characterized in that: Another set of the abutment (7) has a through groove (10) in its body. A pressing rod (11) is provided inside the through groove (10). The outer surface of the pressing rod (11) is fixedly connected to the outer surface of the push plate (2). The output end of the pressing rod (11) is fixedly connected to the outer surface of the punch (9). Two slot plates (12) are provided on the outside of the abutment (7). The outer surface of one slot plate (12) is fixedly connected to the top of the fixed seat (5). The other slot plate (12) is fixedly connected to the support leg of the worktable (1).

3. The handlebar counterweight riveting device according to claim 2, characterized in that: The flipping assembly (3) includes a key shaft (31), which is located outside the push plate (2). The outer surface of the key shaft (31) is fitted with a rubber sleeve (32). Two rotary cylinders (33) for driving the key shaft (31) to rotate and adjust are provided outside the key shaft (31). The outer surfaces of the two rotary cylinders (33) are fixedly connected to the bottom of the push plate (2). The output ends of the two rotary cylinders (33) are fixedly connected to a rotating frame (34). The outer surfaces of the two rotating frames (34) are fixedly connected to a flipping motor (35). The output ends of the two flipping motors (35) are fixedly connected to both ends of the key shaft (31) through a coupling.

4. The handlebar counterweight riveting device according to claim 3, characterized in that: The inside of the slide cylinder (853) is rotatably connected to a rotating roller (854). The outer surface of the rotating roller (854) is fixedly connected to a pusher motor (855). The outer surface of the pusher motor (855) is fixedly connected to the inside of the material trough (851). The outer surface of the rotating roller (854) is provided with a spiral groove (856). The inside of the spiral groove (856) is movably connected to a swivel block (857). The outer surface of the swivel block (857) is fixedly connected to the inside of the slide cylinder (853).

5. The handlebar counterweight riveting device according to claim 4, characterized in that: A feeding module (852) is provided on the outside of the material trough (851). The feeding module (852) includes a material pipe (8521). The inside of the material pipe (8521) is connected to the inside of the material trough (851). The outer surface of the material pipe (8521) is fixedly connected to the outer surface of a set of abutments (7). Two baffles (8522) are slidably connected through the inside of the material pipe (8521). A rack (8523) is fixedly connected to the outer surface of each of the two baffles (8522). A gear (8523) meshes between the outer surfaces of the two racks (8523). 24), the gear (8524) is fixedly connected to a rotating rod (8525) through the body, a torsion spring (8526) is sleeved on the outer surface of the rotating rod (8525), a fixed frame (8527) is fixedly connected to the outside of the material tube (8521), the outer surface of the baffle (8522) is movably connected to the outer surface of the fixed frame (8527), the end of the rotating rod (8525) is embedded and rotatably connected to the outer surface of the fixed frame (8527), and the two ends of the torsion spring (8526) are fixedly connected to the outer surfaces of the gear (8524) and the fixed frame (8527) respectively.

6. The handlebar counterweight riveting device according to claim 5, characterized in that: A winding motor (8528) is fixedly connected to the outer surface of the frame (8527). A drum (8529) is fixedly connected to the output end of the winding motor (8528). A cable is wound on the outer surface of the drum (8529). One end of the cable is slidably connected to the body of the frame (8527). The other end of the cable is fixedly connected to the outer surface of a rack (8523) on one side.

7. A handlebar counterweight riveting process, employing the handlebar counterweight riveting device described in claim 6, characterized in that: Specifically, the following steps are included: Step 1: Use a robotic arm to place the handlebar tube to be riveted on the upper slot plate (12). Then, the push plate (2) abuts against the fixed seat (5) to support it. Then, the screw tube (83) moves through the arc strip (84) and the connecting plate (86) to drive the two sets of abutments (7) to center and limit the handlebar tube. Step 2: The vibratory feeder adds the counterweights into the material tube (8521). Through the separate movement of the two side baffles (8522), the counterweights are added into the material trough (851) one by one. Through the pushing action of the slide cylinder (853), the counterweights enter the handlebar tube. Then the extrusion rod (11) drives the punch (9) to perform riveting on the handlebar tube. Step 3: The flip motor (35) drives the key shaft (31) and the rubber sleeve (32) to rotate. Through the contact friction between the rubber sleeve (32) and the handlebar tube, the handlebar tube rotates. Then, the punch (9) performs equal-angle riveting on the handlebar tube. After the riveting is completed, when the push plate (2) and the abutment (7) move to reset, the handlebar tube is abutted by the abutment (7) on the other side and is unloaded through the lower slot plate (12).

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