Rivet fastening system for bicycle racks

Abstract

The present invention relates to the technical field of bicycle accessories, and relates to an assembly device for bicycle racks, and in particular to a rivet riveting system for bicycle racks. The present invention comprises a storage device, a feeding device and a riveting device which are installed in sequence, wherein the storage device comprises a silo, and the rivets to be riveted are built in the silo, and the discharge port of the silo is connected to the feeding device, and the feeding device comprises a guide plate and a swing block, one end of the swing block is hingedly mounted at the center of the guide plate, and the other end of the swing block is slidably sleeved on the outer edge of the circumference of the guide plate, and the outer end of the swing block can swing along the outer periphery of the guide plate to push the rivets output by the storage device along the outer periphery of the guide plate to the bottom of the riveting device, and the riveting device comprises a lifting assembly and a riveting head, and the riveting head and the lifting assembly are fixed as a whole, and the riveting head reciprocates in the vertical direction under the action of the lifting assembly, and can punch the axial end of the rivet in a low position to achieve riveting.

Description

Technical Field

[0001] The present invention relates to the technical field of bicycle accessories, and particularly to an assembly device for a bicycle rack, and in particular to a rivet riveting system for a bicycle rack. Background Art

[0002] With the acceleration of urbanization and the strengthening of people's environmental awareness, bicycles as a means of transportation have returned to people's sight. The frame is a common accessory of a bicycle, which is generally made by welding a transverse axis, an outer frame and other components. Among them, the outer frame forms a closed complete frame, the transverse axis is in the shape of "[", the rod-shaped part in the middle of the transverse axis is welded to the outer frame as a whole, and the bent parts at both ends are used to install the connecting rod. When the transverse axis part of the frame and the connecting rod are assembled, rivets are used to rivet the connection position.

[0003] At present, there is no special equipment for the riveting process of the above-mentioned process. Generally, a hydraulic cylinder is used to drive the riveting head to move up and down for riveting. In this process, the operator takes a rivet and inserts the rivet into the through hole of the pre-assembled shelf and the connecting rod, and then presses the rivet to place the shelf and the connecting rod in the working position below the riveting head. After riveting, the above operation is repeated to insert the rivet on the other side for riveting. In the above process, the rivet, the shelf and the connecting rod are all free parts. The shelf and the connecting rod need to be assembled with the rivet separately, and after the assembly is completed, the rivet is in an inverted state with the small head facing upward, which can easily cause the rivet to fall off during the movement. The operation is extremely inconvenient and the efficiency is very low. Therefore, based on the above-mentioned shortcomings, a rivet riveting system for bicycle racks should be designed, which can automatically complete the storage and feeding of materials, and the rivet can be inverted and positioned during the feeding process. When the equipment is used, the operator only needs to hold the assembled frame and connecting rod and put them on the outside of the inverted rivet. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a rivet riveting system for a bicycle rack which has a reasonable structure, can store and feed materials automatically, and can position the rivets invertedly during the feeding process.

[0005] The technical solution adopted by the present invention is:

[0006] The rivet riveting system for bicycle racks is characterized in that it includes a storage device, a feeding device and a riveting device installed in sequence, the storage device includes a silo, the silo contains rivets to be riveted, the discharge port of the silo is connected to the feeding device, the feeding device includes a guide plate and a swing block, one end of the swing block is hinged to the center of the circle of the guide plate, and the other end of the swing block is slidably mounted on the outer edge of the circumference of the guide plate, the outer end of the swing block can swing along the outer periphery of the guide plate and thus push the rivets output by the storage device to the bottom of the riveting device along the outer periphery of the guide plate, the riveting device includes a lifting assembly and a riveting head, the rivet head and the lifting assembly are fixed as a whole, the rivet head reciprocates in the vertical direction under the action of the lifting assembly, and can punch the axial end of the rivet in a low position to achieve riveting.

[0007] Furthermore, the storage device adopts a vibrating disc automatic loader, which includes an open disc-shaped silo, and a discharge channel is installed on one side of the disc-shaped silo along the inclined direction of the outer edge of the disc-shaped silo. The discharge channel is inclined along the horizontal plane, and its bottom is a discharge port.

[0008] Furthermore, the material guide plate is a disc-like structure, and its outer edge is arc-shaped, and the curvature of the arc is not less than the swing angle of the pendulum block; the material guide plate is provided with an embedding groove along the outer peripheral extension direction, and an arc-shaped push block is integrally installed on the outer end of the pendulum block, and the arc-shaped push block is embedded in the embedding groove and can move along the outer periphery of the material guide plate under the action of the pendulum block.

[0009] Furthermore, a material guide pipe is installed between the feeding position of the material guide disk and the storage position of the material storage device, the middle part of the material guide pipe is set to pass through, the through position is set as a material guide channel, the material guide channel is cylindrical, and its inner diameter is adapted to the outer diameter of the big head side of the rivet, the material guide pipe is set to an angle, and the lower side is the storage position.

[0010] Furthermore, the middle part of the swing block and the end of a piston rod of a cylinder are hinged, and the outward and return movements of the piston rod drive the swing block to swing and cause the arc-shaped push block and the guide plate to move relative to each other.

[0011] Furthermore, a limit plate is integrally installed at the upper end of the guide disc, and the limit plate is arranged along the axial direction of the guide disc to block the upper end position of the embedding groove. The limit plate is formed with a notch on the side facing the feeding position, and the notch is adapted to the outer diameter of the small head of the rivet.

[0012] Furthermore, the riveting device includes a base, in which the lifting assembly is installed.

[0013] Furthermore, the lifting assembly includes a hydraulic cylinder and a lifting plate, the hydraulic cylinder of the hydraulic cylinder is perpendicular to the upper end surface of the base, the lifting plate is installed at the end of the hydraulic rod, a stamping block is installed in the lower end surface of the lifting plate, and the lower end of the stamping block is installed with the rivet joint.

[0014] Furthermore, the hydraulic cylinder comprises two, the two hydraulic cylinders are symmetrically installed under the base, the upper ends of the hydraulic rods of the two hydraulic cylinders are respectively passed through two through holes made in the base, a lifting plate is integrally installed on the upper ends of the two hydraulic rods, a stamping block is installed in the lower end surface of the lifting plate, and the lower end of the stamping block is installed with the rivet joint.

[0015] Furthermore, a bracket is installed on the side of any hydraulic rod, and a proximity switch is installed on the upper and lower positions of the bracket respectively. An induction ring is sleeved on the outside of the hydraulic rod horizontally with the detection end of the proximity switch. The synchronous movement of the induction ring and the hydraulic rod can trigger the two proximity switches respectively.

[0016] The advantages and positive effects of the present invention are:

[0017] In the present invention, a storage device, a feeding device and a riveting device cooperate to form a complete riveting system. During use, the storage device stores and discharges materials, and the feeding device pushes the rivets output by the discharging device to the riveting position, and finally the riveting head of the riveting device performs punching and riveting. This process does not require manual operation, and the operator only needs to hold the shelf and connecting rod to be riveted and fixed, which is not only simple to operate but also more efficient.

[0018] In the present invention, the material storage device adopts a vibrating plate type automatic feeder, which has a mature technology and is widely used in the material storage and discharging process of round or cylindrical components such as bottle caps, rivets, resistors, etc.

[0019] In the present invention, the guide plate adopts a disk-like structure, which can be a complete disc or a partial disc arc structure, and the rivets are transported on the periphery of the arc area. One side end of the swing block is hinged with the circular position of the guide plate, and the rivet is pushed from the storage position of the storage device to the riveting position through the swing from the low position to the high position. The embedded groove formed along the periphery of the guide plate plays a guiding role. On the one hand, it is used to accommodate the large head side of the rivet to be embedded, and on the other hand, it guides the embedded arc push block. The arc push block is fixed with the swing, and moves along the periphery of the guide plate under the action of the cylinder, thereby pushing the rivet to move.

[0020] In the present invention, the setting of the limiter is used to block the transmission of the rivet, so that it is fixed below the riveted head and is in a state perpendicular to the base. In addition, the notch position fixes the small head of the rivet, which can effectively prevent the operator from tipping over when assembling the shelf and the shelf.

[0021] In the present invention, the riveting device includes a base and a lifting assembly. The base is used to install the material guide plate. The lifting assembly can be suspended from the top or passed from the bottom to the top. The lifting assembly can control the up and down movement of the rivet head. When it is in the upper state, the rivet head moves up the feeding assembly to load the material. When it is in the lower state, the rivet head and the small head side of the rivet are in close contact and are punched and riveted.

[0022] In the present invention, the bracket installed beside the hydraulic rod, the two proximity switches in the bracket and the induction ring set on the outside of the hydraulic rod cooperate to improve the automation and expandability of the riveting system. When in use, a special control cabinet can be configured, and a PLC or a single-chip microcomputer is installed in the control cabinet for automatic control. The signal output ends of the two proximity switches are respectively connected to the PLC. The PLC can identify the working conditions at this time according to the triggering status of the two proximity switches, and control the hydraulic cylinder and the air cylinder respectively, thereby realizing the automatic operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A partial cross-sectional view of the middle riveting device;

[0025] Figure 3 for Figure 1 The structural diagram of the feeding device;

[0026] Figure 4 It is a structural schematic diagram of the feeding process of the feeding device;

[0027] Figure 5 It is a top view of the guide tray part in the feeding device. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with examples. The following examples are illustrative rather than restrictive, and the protection scope of the present invention cannot be limited by the following examples.

[0029] The invention discloses a rivet riveting system for bicycle racks. The invention is innovative in that the system comprises a storage device 2, a feeding device 3 and a riveting device 1 which are installed in sequence. The storage device comprises a silo which contains rivets to be riveted. The discharge port of the silo is connected to the feeding device. The feeding device comprises a guide plate and a pendulum block. One end of the pendulum block is hinged at the center of the guide plate. The other end of the pendulum block is slidably mounted on the outer edge of the circumference of the guide plate. The outer end of the pendulum block can swing along the outer periphery of the guide plate and push the rivets output by the storage device to the bottom of the riveting device along the outer periphery of the guide plate. The riveting device comprises a lifting assembly and a rivet head. The rivet head and the lifting assembly are fixed as a whole. The rivet head reciprocates in the vertical direction under the action of the lifting assembly and can punch the axial end of the rivet in a low position to achieve riveting.

[0030] In this embodiment, the storage device adopts a vibrating disc automatic loader, which includes an open disc-shaped silo. A discharge channel is installed on one side of the disc-shaped silo along the inclined direction of the outer edge of the disc-shaped silo. The discharge channel is inclined along the horizontal plane, and its bottom is a discharge port.

[0031] In this embodiment, the guide plate 37 is a plate-like structure, and its outer edge is in an arc shape, and the arc of the arc is not less than the swing angle of the swing block 35. The arc of the guide plate is preferably a minor arc, and the upper part of the arc preferably coincides with the axial position of the rivet and the horizontal projection of the rivet head.

[0032] In this embodiment, the material guide plate is fixed in the base of the riveting device through a base 36, and the base fixes the material guide plate in a direction perpendicular to the base.

[0033] In this embodiment, a limit plate 31 is integrally installed at the upper end of the guide disk. The limit plate is arranged along the axial direction of the guide disk to block the upper end position of the embedding groove 38. A notch 39 is formed on the side of the limit plate facing the feeding position, and the notch is preferably matched with the outer diameter of the small head of the rivet.

[0034] In this embodiment, a material guide tube 32 is installed between the feeding position of the material guide disk and the storage position of the material storage device. The middle part of the material guide tube is set to be through, and the through position is set as a material guide channel. The material guide channel is cylindrical, and its inner diameter is adapted to the outer diameter of the big head side of the rivet. The material guide tube is set at an angle, and the lower side is the storage position.

[0035] In this embodiment, the guide plate is provided with an embedding groove along the peripheral extension direction, and an arc-shaped push block 33 is integrally installed at the outer end of the swing block. The arc-shaped push block is embedded in the embedding groove and can move along the periphery of the guide plate under the action of the swing block.

[0036] In this embodiment, the middle part of the swing block is hinged to the end of the piston rod of a cylinder 34, and the outward and return movements of the piston rod drive the swing block to swing and cause the arc-shaped push block and the guide plate to move relative to each other.

[0037] In this embodiment, the riveting device includes a base 16 in which the lifting assembly is installed.

[0038] In this embodiment, two hydraulic cylinders 19 are used, and the two hydraulic cylinders are symmetrically installed below the base. The upper ends of the hydraulic rods 11 of the two hydraulic cylinders are respectively passed through two through holes 15 made in the base, and a lifting plate 12 is integrally installed. A punching block 13 is installed in the lower end surface of the lifting plate, and the rivet joint 14 is installed at the lower end of the punching block.

[0039] In this embodiment, a bracket is installed at the side of any one of the hydraulic rods, and a proximity switch 18 is installed at the upper and lower positions of the bracket respectively. An induction ring 17 is sleeved on the outside of the hydraulic rod horizontally with the detection end of the proximity switch. The synchronous movement of the induction ring and the hydraulic rod can trigger the two proximity switches respectively. When the upper proximity switch is triggered, the feeding device can push the rivet to the riveting position. When the lower proximity switch is triggered, it is considered that one riveting is completed.

[0040] The use process of the present invention is:

[0041] The vibration plate automatic feeder is running, and the rivets are guided out one by one, and then fall into the feeding position of the groove made by the guide plate after being guided by the guide tube. The lifting plate in the riveting device moves up under the drive of the hydraulic cylinder until the upper proximity switch is triggered. The cylinder's outward movement pushes the swing block to swing upward, and then a rivet is pushed to the upper position through the arc push block. The rivet is blocked by the limit plate, and the small head is embedded in the gap. At this time, the operator holds the pre-assembled shelf and connecting rod, and after the rivet is installed, the lifting plate in the riveting device moves down under the drive of the hydraulic cylinder for riveting. When the lower proximity switch is triggered, the riveting is considered to be completed. Then repeat the above steps.

[0042] In the present invention, a storage device, a feeding device and a riveting device cooperate to form a complete riveting system. During use, the storage device stores and discharges materials, and the feeding device pushes the rivets output by the discharging device to the riveting position, and finally the riveting head of the riveting device performs punching and riveting. This process does not require manual operation, and the operator only needs to hold the shelf and connecting rod to be riveted and fixed, which is not only simple to operate but also more efficient.

[0043] In the present invention, the material storage device adopts a vibrating plate type automatic loading machine, which has mature technology and is widely used in round or cylindrical components such as bottle caps, rivets, resistors, etc.

[0044] In the present invention, the guide plate adopts a disk-like structure, which can be a complete disc or a partial disc arc structure, and the rivets are transported on the periphery of the arc area. One side end of the swing block is hinged with the circular position of the guide plate, and the rivet is pushed from the storage position of the storage device to the riveting position through the swing from the low position to the high position. The embedded groove formed along the periphery of the guide plate plays a guiding role. On the one hand, it is used to accommodate the large head side of the rivet to be embedded, and on the other hand, it guides the embedded arc push block. The arc push block is fixed with the swing, and moves along the periphery of the guide plate under the action of the cylinder, thereby pushing the rivet to move.

[0045] In the present invention, the riveting device includes a base and a lifting assembly. The base is used to install the material guide plate. The lifting assembly can be suspended from the top or passed from the bottom to the top. The lifting assembly can control the up and down movement of the rivet head. When it is in the upper state, the rivet head moves up the feeding assembly to load the material. When it is in the lower state, the rivet head and the small head side of the rivet are in close contact and are punched and riveted.

Claims

1. The rivet riveting system for bicycle racks is characterized by: It comprises a storage device, a feeding device and a riveting device which are installed in sequence, the storage device comprises a material bin, the material bin has rivets to be riveted built in it, the material outlet of the material bin is connected to the feeding device, the feeding device comprises a material guide plate and a swing block, one end of the swing block is hingedly mounted at the center position of the material guide plate, the other end of the swing block is slidably sleeved on the outer edge of the circumference of the material guide plate, the outer end of the swing block can swing along the outer periphery of the material guide plate to push the rivets output by the storage device along the outer periphery of the material guide plate to the bottom of the riveting device, the riveting device comprises a lifting assembly and a riveting head, the riveting head and the lifting assembly are fixed as a whole, the riveting head reciprocates in the vertical direction under the action of the lifting assembly, and can punch the axial end of the rivet in a low position to achieve riveting; The guide plate is a plate-like structure, and its outer edge is in an arc shape, and the arc of the arc shape is not less than the swing angle of the swing block; the guide plate is provided with an embedding groove along the extension direction of the outer circumference, and an arc-shaped push block is integrally installed at the outer end of the swing block, and the arc-shaped push block is embedded in the embedding groove and can move along the outer circumference of the guide plate under the action of the swing block; A material guide pipe is installed between the feeding position of the material guide plate and the storage position of the material storage device. The middle part of the material guide pipe is set through, and the through position is set as a material guide channel. The material guide channel is cylindrical, and its inner diameter is adapted to the outer diameter of the big head side of the rivet. The material guide pipe is set obliquely; The middle part of the swing block is hinged with the end of the piston rod of a cylinder, and the outward and return movements of the piston rod drive the swing block to swing so that the arc-shaped push block and the guide plate move relative to each other; A limit plate is integrally installed at the upper end of the guide disc, and the limit plate is arranged along the axial direction of the guide disc to block the upper end position of the embedding groove. The limit plate is formed with a notch on the side facing the feeding position, and the notch is adapted to the outer diameter of the small head of the rivet.

2. The rivet riveting system for bicycle racks according to claim 1, characterized in that: The material storage device adopts a vibrating disc automatic loader, which includes an open disc-shaped silo. A discharge channel is installed on one side of the disc-shaped silo along the inclined direction of the outer edge of the disc-shaped silo. The discharge channel is inclined along the horizontal plane, and its bottom is a discharge port.

3. The rivet riveting system for a bicycle rack according to claim 1, characterized in that: The riveting device comprises a base, in which the lifting assembly is installed.

4. The rivet riveting system for a bicycle rack according to claim 1, characterized in that: The lifting assembly includes a hydraulic cylinder and a lifting plate. The hydraulic rod of the hydraulic cylinder is perpendicular to the upper end surface of the base. The lifting plate is installed at the end of the hydraulic rod. A punching block is installed in the lower end surface of the lifting plate. The lower end of the punching block is installed with the rivet joint.

5. The rivet riveting system for a bicycle rack according to claim 4, characterized in that: The hydraulic cylinders include two, which are symmetrically mounted below the base. The upper ends of the hydraulic rods of the two hydraulic cylinders pass through two through holes formed in the base respectively. A lifting plate is integrally mounted on the upper ends of the two hydraulic rods, a stamping block is mounted on the lower end surface of the lifting plate, and the rivet joint is mounted on the lower end of the stamping block.

6. The rivet riveting system for a bicycle rack according to claim 5, characterized in that: A bracket is installed beside any hydraulic rod, and a proximity switch is installed at the upper and lower positions of the bracket respectively. An induction ring is sleeved on the outside of the hydraulic rod horizontal to the detection end of the proximity switch. The synchronous movement of the induction ring and the hydraulic rod can trigger two proximity switches respectively.

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