Rivet manufacturing equipment

Abstract

The utility model relates to the technical field of rivet manufacturing, and discloses a rivet manufacturing device which comprises a workbench, a rivet pressing device and a rivet pressing device. The clamp assembly is installed on the table top and used for fixing the riveting rod; the spinning assembly is located above the clamp assembly and comprises a riveting head tool, a first rotation driving mechanism for driving the riveting head tool to rotate around the first axis of the riveting head tool, and a lifting driving mechanism for driving the riveting head tool to reciprocate in the vertical direction; the first axis is perpendicular to the table top; the heating device is provided with a heating end, and the heating end is used for heating the upward end of the riveting rod; the feeding device comprises a feeding vibration assembly and a material taking and placing assembly, the feeding vibration assembly is used for conveying the riveting rods to the clamp assembly, and the material taking and placing assembly is used for placing the riveting rods on the clamp assembly; and the control device is in signal connection with the clamp assembly, the spinning assembly, the heating device, the feeding vibration assembly and the material taking and placing assembly. The equipment can automatically finish hot riveting of rivets, is high in forming quality, high in spin riveting speed and high in efficiency, and saves manpower.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet manufacturing, in particular to a rivet manufacturing device. Background Art

[0002] Rivets are headed parts with unthreaded rods. During assembly, the rod is inserted into the hole of the connector, and then the rod ends are riveted to achieve connection. Rivets are cheaper and lighter than bolts, and are also suitable for automated installation tools. They are faster to install than bolts and nuts. They are widely used in aerospace products and are one of the most common fasteners used for structural connections that are not expected to be disassembled.

[0003] Among them, tungsten and molybdenum are rare refractory metals with high melting point, high density, and high hardness. Therefore, when making rivets with this material, hot riveting is used. The existing riveting machine equipment currently requires two people to cooperate in spinning rivets, one of whom heats the rivet rod with a fire, and the other controls the operation of the riveting machine so that the rivet head rotates and punches around the axis of the rivet rod. For manual cooperation in the manufacture of rivets, it is very easy to cause safety hazards due to poor communication, and it is also easy to have defects such as missing rivets or unstable quality, which is not conducive to the guarantee of product quality. In addition, manual cooperation in operation and manufacturing requires a lot of manpower, material resources, and financial resources, high work costs, low work efficiency, and long-term manual work is prone to occupational diseases and personal safety hazards. Utility Model Content

[0004] The utility model aims to provide a rivet manufacturing device, which can make various mechanisms work automatically under the control of a control device to complete the hot riveting of the rivet head and the rivet rod, and the rivet head and the rivet rod are accurately aligned, and the heating position and heating time of the rivet rod by the heating end can also be accurately controlled, which is beneficial to improving the rivet forming quality, and the riveting speed is fast and the efficiency is high. The riveting process of the rivet head and the rivet rod is time-saving and labor-saving, and manpower is saved, which alleviates the problems of high labor intensity and personal safety hazards of operators, and can also reduce the occurrence of occupational diseases of workers in spinning operations, and has good promotion and application value.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A rivet manufacturing device, comprising:

[0007] A work frame, the work frame comprising a workbench and a bracket fixed to the workbench;

[0008] A clamp assembly, which is mounted on the workbench and is used to clamp, fix or release the rivet rod;

[0009] A spinning assembly, the spinning assembly is mounted on the bracket and is located on a side of the clamp assembly away from the table, the spinning assembly includes a rivet head tooling for clamping or releasing the rivet head, a first rotation drive mechanism for driving the rivet head tooling to rotate around its first axis, and a lifting drive mechanism for driving the rivet head tooling to reciprocate in a direction perpendicular to the table; wherein the first axis is perpendicular to the table, and when the rivet head is aligned with the rivet rod and connected by forming, the first axis coincides with the axis center line of the rivet rod;

[0010] A heating device, wherein the heating device has a heating end, and the heating end is used to heat an end of the rivet rod facing the rivet head, so that the rivet head is connected to one end of the rivet rod by forming;

[0011] A feeding device, the feeding device comprising a feeding vibration assembly and a material picking and placing assembly, the feeding vibration assembly is used to hold the material and convey the rivet rod to the clamp assembly, and the material picking and placing assembly is used to clamp the rivet rod and place it on the clamp assembly;

[0012] The control device, the clamp assembly, the spinning assembly, the heating device, the feeding vibration assembly and the material picking and placing assembly are all connected to the control device by signal.

[0013] The rivet manufacturing equipment can, under the control of the control device, enable each mechanism to work automatically to complete the hot riveting of the rivet head and the rivet rod, and the rivet head and the rivet rod are accurately positioned, and the heating position and heating time of the rivet rod by the heating end can also be accurately controlled, which is beneficial to improving the rivet forming quality, and the spin riveting speed is fast and the efficiency is high. The riveting process of the rivet head and the rivet rod saves time and effort, saves manpower, alleviates the problems of high labor intensity and personal safety hazards of operators, and can also reduce the occurrence of occupational diseases of workers in spinning operations, and has good promotion and application value.

[0014] Optionally, the lifting drive mechanism includes a guide rail extending in a direction perpendicular to the table top, a moving part movably mounted on the guide rail along the extending direction of the guide rail, and a first power device for driving the moving part to move;

[0015] The first rotary drive mechanism is installed on the moving part, and includes a rotating part, a second power device which is transmission-connected with the rotating part and used for driving the rotating part to rotate around the first axis, and the rivet head tooling is installed on the rotating part.

[0016] Optionally, the feeding vibration assembly includes a feeding vibrating bowl and a linear feeder. The feeding vibrating bowl includes a chassis, a hopper disposed on the chassis, and a vibrator disposed at the bottom of the hopper. The hopper is used to hold the riveting rods, and the vibrator is used to drive the hopper to vibrate so that a spiral conveying channel can be formed in the hopper. The linear feeder has a linear conveying channel and can convey the riveting rods along the linear conveying channel. The feeding port of the linear conveying channel is connected to the discharging port of the spiral conveying channel, and the discharging port of the linear conveying channel is close to the fixture assembly.

[0017] Optionally, the material picking and placing assembly includes: a jaw mechanism for clamping or releasing the rivets, a second rotation driving mechanism for driving the jaw mechanism to rotate around a second axis parallel to the tabletop, and a moving driving mechanism for driving the jaw mechanism to move linearly, the line being perpendicular to the second axis.

[0018] Optionally, the jaw mechanism includes a Y-shaped pneumatic jaw, the second rotation driving mechanism includes a rotary cylinder, and the moving driving mechanism includes: a guide rail extending from the discharging port of the linear conveying channel to the fixture assembly, a slider movably mounted on the guide rail along the extension direction of the guide rail, and a power assembly for driving the slider to move;

[0019] The rotary cylinder is disposed on one side of the periphery of the fixture assembly. The rotary cylinder has a rotary output end, and the moving driving mechanism is mounted on the rotary output end so that the moving driving mechanism rotates with the rotary output end. The axis line of the rotary output end coincides with the second axis; the Y-shaped pneumatic jaw is mounted on the slider so that the Y-shaped pneumatic jaw reciprocates along the guide rail with the slider.

[0020] Optionally, the material picking and placing assembly further includes: a translation driving mechanism, which includes: a linear guide rail disposed on one side of the periphery of the fixture assembly and parallel to the tabletop, a base block movably mounted on the linear guide rail along the extension direction of the linear guide rail, and a third power device in transmission connection with the base block and used to drive the base block to act, wherein the rotary cylinder is mounted on the base block.

[0021] Optionally, the fixture assembly includes a jaw chuck. The jaw chuck includes: a chuck and at least two jaws disposed on the chuck for clamping the riveting rods. The at least two jaws are evenly spaced around the circumference of the axis line of the chuck. A fixing station for placing the riveting rods is formed at a position corresponding to the axis line of the chuck in the chuck. Each jaw approaches or moves away from the fixing station in the radial direction of the chuck, and a clamping surface is formed on one side of each jaw facing the fixing station;

[0022] Preferably, the fixture assembly includes a pneumatic three-jaw chuck.

[0023] Optionally, the rivet manufacturing equipment further includes a receiving tray. An opening is provided in the middle of the jaw chuck, and the receiving tray is disposed below the opening. When the jaws release the rivet rod, the rivet rod passes through the opening and falls into the receiving tray.

[0024] Optionally, the heating device includes an AC inverter welding machine, and the welding head of the AC inverter welding machine constitutes the heating end; a welding head driving mechanism for driving the welding head to approach or move away from the connecting end of the rivet rod is provided on the periphery of the fixture assembly.

[0025] Optionally, the welding head driving mechanism includes: a linear track extending towards the fixture assembly at one end, a support plate movably mounted on the linear track along the linear track, and a cylinder assembly for driving the support plate to reciprocate along the linear track. The welding head is mounted on the support plate. Description of the Drawings

[0026] The specification drawings forming a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0027] Figure 1 is a schematic structural diagram of a rivet manufacturing equipment provided in this embodiment;

[0028] Figure 2 is a partial structural diagram of a rivet manufacturing equipment provided in this embodiment.

[0029] Reference Signs: 1 - working frame; 2 - fixture assembly; 3 - spinning assembly; 4 - heating device; 5 - feeding device; 6 - control device; 7 - rivet rod; 11 - base; 12 - column; 13 - workbench; 14 - bracket; 31 - rivet head tooling; 32 - first rotary drive mechanism; 33 - lifting drive mechanism; 41 - heating end; 51 - feeding vibration assembly; 52 - material picking and placing assembly; 511 - discharging vibration disk; 512 - linear feeder; 521 - jaw mechanism; 522 - second rotary drive mechanism; 523 - moving drive mechanism; 524 - translation drive mechanism. Detailed Description of the Embodiment

[0030] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present utility model rather than limitation thereof. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present utility model without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Accordingly, it is intended that the present utility model cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0031] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model rather than requiring the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. The terms "connected", "coupled", "arranged" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] Reference Figure 1As shown in the figure, the present utility model provides a rivet manufacturing device. For the convenience of description, in this embodiment, the plane parallel to the tabletop is defined as the horizontal plane (horizontal direction), and the direction perpendicular to the horizontal plane is defined as the vertical direction. Specifically, the rivet manufacturing device provided in this embodiment includes: a workbench 1, a fixture assembly 2, a spinning assembly 3, a heating device 4, a feeding device 5, and a control device 6. Among them, the workbench 1 includes a worktable 13 and a bracket 14 fixed to the worktable 13. The workbench 1 further includes a base 11 and a column 12. The base 11 is fixed to the ground. One end of the column 12 is fixedly connected to the base 11. The column 12 is vertically arranged. The worktable 13 is fixedly connected to the column 12 and can be installed in the middle of the column 12. The bracket 14 is fixedly connected to the column 12 and is arranged at the top of the column 12. The bracket 14 can specifically be a crossbeam frame. The tabletop of the worktable 13 is horizontally arranged and faces upward, towards the bracket 14. The fixture assembly 2 is installed on the tabletop of the worktable 13 and can clamp and fix or release the rivet rod 7. When the rivet rod needs to be processed and connected, the axis line of the rivet rod 7 extends vertically and is placed and fixed vertically in the fixture assembly 2. The spinning assembly 3 is installed on the bracket 14 and is located on the side of the fixture assembly 2 away from the tabletop. The spinning assembly 3 specifically includes a rivet head tooling 31, a first rotation driving mechanism 32, and a lifting driving mechanism 33. The rivet head tooling 31 can clamp or release the rivet head. Specifically, the rivet head tooling 31 has a clamping position for installing the rivet head. The rivet head can be stuck in the clamping position of the rivet head tooling, and the rivet head tooling can firmly hold the rivet head. Preferably, the material of the rivet head tooling can be selected as white strip steel, which has high hardness, is not easy to deform, and is wear-resistant. The first rotation driving mechanism 32 can drive the rivet head tooling 31 to rotate around its own first axis. The lifting driving mechanism 33 can drive the rivet head tooling 31 to reciprocate in a direction perpendicular to the tabletop. And the first axis is perpendicular to the tabletop. Among them, when the rivet head is installed on the rivet head tooling, the axis line of the rivet head coincides with the first axis. The first axis can be set to coincide with the axis line of the rivet rod on the fixture assembly. When the rivet head is aligned with the rivet rod and formed and connected, the first axis coincides with the axis line of the rivet rod 7, which is convenient for the connection position between the rivet head and the rivet rod to be accurate during the spinning connection.The heating device 4 has a heating end 41, and the heating end 41 can heat one end of the riveting rod facing the rivet head, so that the rivet head and one end of the riveting rod are formed and connected. Specifically, in this embodiment, the rivet head and the riveting rod can be made of metal tungsten or metal molybdenum; the feeding device 5 includes a feeding vibration assembly 51 and a material picking and placing assembly 52. The feeding vibration assembly 51 is used for containing materials and conveying the riveting rod to the fixture assembly 2, and the material picking and placing assembly 52 is used for picking up the riveting rod and placing it on the fixture assembly. After the riveting rod and the rivet head are connected and formed, the riveting rod on the fixture assembly 2 can be replaced to enter the next cycle of production; among them, the above-mentioned fixture assembly 2, the spinning assembly 3, the heating device 4, and the feeding vibration assembly 51 and the material picking and placing assembly 52 are all connected to the control device 6 by signals. The control device 6 can issue instructions according to the program content contained in itself, so as to control the fixture assembly 2, the rivet head tooling 31, the first rotation driving mechanism 32, the lifting driving mechanism 33, and the heating device 4 and the feeding vibration assembly 51 and the material picking and placing assembly 52 to perform corresponding actions according to the instructions, realizing the automatic connection and forming of the rivet head and the riveting rod, and completing the automatic manufacture of the rivet.

[0033] When the above-mentioned rivet manufacturing equipment manufactures rivets, such as Figure 1As shown, the program and parameters in the control device 6 are input in advance, and each control mechanism is debugged. Under the control of the control device 6, the feeding vibration assembly 51 conveys the rivet rod to the fixture assembly 2. The material picking and placing assembly 52 picks up the rivet rod and places it on the fixed station of the fixture assembly 2. The fixture assembly 2 fixes the rivet rod, making the rivet rod vertically placed, with one end extending into the fixture assembly 2 and the other end facing upward being exposed, facilitating subsequent docking with the riveting head. The lifting drive mechanism 33 drives the riveting head tooling 31 to rise to the highest position in the stroke, making space for the lower part. The riveting head is installed on the riveting head tooling 31, and the riveting head tooling 31 clamps the riveting head. Then, the lifting drive mechanism 33 is started to drive the riveting head tooling to move downward. The riveting head tooling faces the fixture assembly 2, and the riveting head is opposite to the rivet rod. The axis line of the riveting head is substantially coincident with the axis line of the rivet rod. It should be noted that in the vertical direction, when the riveting head tooling 31 faces the fixture assembly 2, the clamping station of the riveting head tooling 31 and the fixed station of the fixture assembly 2 are vertically opposite. The clamping station on the riveting head tooling 31 and the fixed station of the fixture assembly 2 are pre-adjusted and aligned. When installing the riveting head, only need to move the riveting head tooling 31 upward to provide space for installing the riveting head. After the riveting head is installed on the riveting head tooling 31, then start the lifting drive mechanism 33 to drive the riveting head tooling 31 to descend, and start the first rotation drive mechanism 32 for spinning operation. It should be noted that the first rotation drive device can be started when the riveting head tooling descends to a preset position. For example, when the riveting head just touches the rivet rod, start the first rotation drive device. The heating end 41 of the heating device 4 heats the upper end of the rivet rod. After heating to the preset temperature or after heating for a preset duration (for example, the preset heating duration is 3 seconds), it is withdrawn, and the lifting drive mechanism is controlled to act, and the riveting head presses downward. When the riveting head touches the top of the rivet rod, control the first rotation drive mechanism 32 to make the riveting head tooling 31 rotate around the first axis. The first axis is coincident with the axis line of the riveting head. Then the riveting head also rotates around its own axis line. Then the riveting head rotates and moves downward while rotating around the axis line of the rivet rod for rotary stamping forming. When the riveting head descends to the preset position, it stops, and the first rotation drive mechanism 32 also stops working. The connection between the riveting head and the rivet rod is formed, and the rivet manufacturing is completed.

[0034] It should be noted that the above control device may include a PLC control program. According to the actions and times of each operation link, set parameters are input into the control program of the control device, so that each mechanism acts in sequence, and each operation link forms a closed loop. As long as the start button is pressed, each mechanism (fixture assembly, spinning assembly, heating assembly, and feeding device) can cooperate according to the program parameters to work and carry out the process of automatically manufacturing rivets.

[0035] Therefore, the rivet manufacturing equipment can, under the control of the control device, enable each mechanism to work automatically to complete the hot riveting of the rivet head and the rivet rod, and the rivet head and the rivet rod are accurately positioned, and the heating position and heating time of the rivet rod by the heating end can also be accurately controlled, which is beneficial to improving the rivet forming quality, and the spin riveting speed is fast and the efficiency is high. The riveting process of the rivet head and the rivet rod saves time and effort, saves manpower, alleviates the problems of high labor intensity and personal safety hazards of operators, and can also reduce the occurrence of occupational diseases among workers in spinning operations, and has good promotion and application value.

[0036] Specifically, Figure 1 As shown, in the above-mentioned rivet manufacturing equipment, the lifting drive mechanism 33 includes a guide rail extending in a direction perpendicular to the table surface, a moving part movably installed on the guide rail along the extending direction of the guide rail, and a first power device for driving the moving part to move; illustratively, the lifting drive mechanism 33 can be a cylinder assembly, the cylinder assembly includes a cylinder body and a piston rod installed on the cylinder body and moving linearly, the axis of the piston rod is perpendicular to the table surface and can move up and down, wherein the piston rod constitutes the moving part.

[0037] Further, the first rotation drive mechanism 32 is installed on the moving part, and the first rotation drive mechanism 32 includes a rotating part, a second power device that is transmission-connected to the rotating part and used to drive the rotating part to rotate around the first axis, and the rivet head tooling is installed on the rotating part. Preferably, the second power device can be a motor, the body of the motor can be fixed to the piston rod, the output shaft of the motor is transmission-connected to the rotating part, the output shaft of the motor can be connected to a coupling, the coupling can be connected to the rotating part, the rotating part can be a flange or other parts, and the rivet head tooling is installed on the rotating part and can rotate with the rotating part.

[0038] In one possible implementation, Figure 1As shown in the figure, the above-mentioned feeding vibration assembly 51 includes a feeding vibrating disk 511 and a linear feeder 512. The feeding vibrating disk 511 includes a chassis, a hopper provided on the chassis, and a vibrator provided at the bottom of the hopper. The hopper is used to hold the riveting rods, and the vibrator is used to drive the hopper to vibrate, so that a spiral conveying channel can be formed in the hopper. Preferably, the vibrator can be a pulse electromagnet, which is provided at the bottom of the hopper, enabling the hopper to vibrate in the vertical direction. Driven by an inclined spring plate, the hopper makes a torsional vibration around an axis in the vertical direction. This vibration causes the riveting rods to rise along the spiral track, thus presenting a spiral conveying channel in the hopper. The vibration makes the riveting rods arranged orderly and neatly, and accurately conveys them forward along the spiral conveying channel to the linear feeder 512. The linear feeder 512 has a linear conveying channel and can convey the riveting rods along the linear conveying channel. The inlet of the linear conveying channel is connected to the outlet of the spiral conveying channel, and the outlet of the linear conveying channel is close to the fixture assembly 2. The riveting rods enter the linear feeder 512 and are arranged orderly in the linear conveying channel, and are fed according to the set vibration frequency. Preferably, a vibration frequency detector can also be installed at the bottom of the hopper to detect and adjust the vibration rate and frequency for detecting the feeding speed. In addition, material detectors are respectively arranged at both ends of the linear transmission channel. The material detectors are used to detect materials and can detect whether there are riveting rods. When it is detected that there are no riveting rods in the linear conveying channel, the vibrating disk is controlled to vibrate and convey the riveting rods into the linear transmission channel to achieve automatic feeding. Specifically, the vibration frequency detector and the material detector can be combined by large-scale integrated circuits and highly sensitive sensors, and an LED touch screen is set to display data, such as the vibration frequency value, and screen touch operations can also be performed. It can not only observe the straight pipe, but also has simple operations, greatly facilitating the on-site detection by operators.

[0039] Based on the above rivet manufacturing equipment, as Figure 1 shown in the figure, the material picking and placing assembly 52 includes: a jaw mechanism 521 for clamping or releasing the rivets, a second rotation driving mechanism 522 for driving the jaw mechanism 521 to rotate around its own second axis, and a moving driving mechanism 523 for driving the jaw mechanism 521 to approach or move away from the fixture assembly 2. The second rotation driving mechanism 522 can drive the jaw mechanism 521 to rotate and adjust the angle of the jaw mechanism 521 so that the jaw mechanism 521 is aligned with the riveting rods, pick up a riveting rod at the outlet of the linear transmission channel, then rotate the jaw mechanism 521, and combine with the moving driving mechanism 523 to drive the jaw mechanism 521 to move, so that the jaw mechanism 521 clamps the riveting rod and installs it into the fixture assembly 2. After the riveting rod is installed, release the riveting rod, and then reset to prepare to pick up the next riveting rod, realizing the automatic picking and placing of the riveting rods and improving the work efficiency.

[0040] As a specific implementation manner, as Figure 1As shown, the hopper is placed horizontally with its opening facing upward. The spiral conveying channel spirals upward at a certain angle. The linear conveying channel of the linear feeder 512 is also horizontally arranged. The inlet of the linear conveying channel is connected to the outlet of the spiral conveying channel. The riveting rods are arranged at intervals on the linear conveying channel and are orderly conveyed forward to the outlet of the linear conveying channel. Moreover, in the horizontal direction, the linear feeder 512 can be arranged beside the fixture assembly 2 with a certain interval. Exemplarily, the outlet of the linear feeder 512 can face the direction where the fixture assembly 2 is located.

[0041] Among them, the second rotation driving mechanism 522 includes a rotary cylinder. The rotary cylinder is arranged on one side of the periphery of the fixture assembly 2 and near the fixture assembly 2. The rotary cylinder has a rotary output end and a pneumatic part for driving the rotary output end to rotate around its own axis. The axis of the rotary output end coincides with the second axis, and the axis of the rotary output shaft is horizontally arranged.

[0042] The moving driving mechanism 523 is installed on the rotary output end and can rotate with the rotary output end. The moving driving mechanism 523 specifically includes: a guide rail extending from the outlet of the linear conveying channel to the fixture assembly 2, a slider movably installed on the guide rail along the extension direction of the guide rail, and a power assembly for driving the slider to move. Preferably, the guide rail can extend along a direction perpendicular to the second axis and is arranged between the outlet of the linear feeder 512 and the fixture assembly 2. The slider is installed on the guide rail, and the power assembly can drive the slider to reciprocate up and down. Exemplarily, the moving driving mechanism can be a linear cylinder. The linear cylinder includes: a cylinder body and a moving block movably installed on the cylinder body. The cylinder body is arranged along a direction perpendicular to the second axis, and the moving block can reciprocate along a direction perpendicular to the second axis on the cylinder body. Among them, the moving block of the linear cylinder constitutes the slider.

[0043] The jaw mechanism 521 is installed on the slider and can reciprocate along a direction perpendicular to the second axis with the slider to achieve expansion and contraction. Preferably, the jaw mechanism 521 includes a Y-shaped pneumatic jaw. The Y-shaped pneumatic jaw has two jaws and a pneumatic part for driving the two jaws to approach or separate from each other. Among them, the rotary output shaft of the rotary cylinder rotates so that the Y-shaped pneumatic jaw aligns with the outlet of the linear feeder 512. The slider moves so that the Y-shaped pneumatic jaw moves towards the outlet of the linear feeder 512. The Y-shaped pneumatic jaw can grip the riveting rod at the outlet of the linear feeder 512. Then, the slider moves back so that the Y-shaped pneumatic jaw retracts with the riveting rod gripped. The rotary cylinder is started again, and the rotary output shaft of the rotary cylinder rotates a certain angle so that the riveting rod aligns with the fixture assembly 2. The slider moves again so that the Y-shaped pneumatic jaw moves towards the fixture assembly 2 and approaches the fixture assembly 2, and then places the riveting rod on the fixture assembly 2 to achieve material placement.

[0044] In a specific embodiment, as Figure 1 shown, in the horizontal direction, the linear feeder 512 is arranged beside the fixture assembly 2, and the linear feeder 512 is horizontally arranged. The linear conveying channel of the linear feeder 512 can be arranged along the radial direction of the fixture assembly 2, and the discharge port of the linear conveying channel faces the fixture assembly 2. In the vertical direction, the linear feeder is arranged below the fixture assembly 2, and the rotation angle range of the rotation output end is set to 90°. Among them, the Y-shaped pneumatic gripper is located between the discharge port of the linear feeder 512 and the fixture assembly 2. The rotary cylinder is arranged beside the fixture assembly 2 and above the linear feeder 512, and can be arranged at a height similar to that of the fixture assembly 2. Among them, the rotary output shaft of the rotary cylinder rotates within a 90° angle range and has two angle limit positions. One angle limit position is in the vertical direction, and the other angle limit position is in the horizontal direction. Among them, when the rotary output shaft rotates to the limit position in the vertical direction, the moving direction of the Y-shaped pneumatic gripper is in the vertical direction, and the Y-shaped pneumatic gripper moves up and down reciprocally and can contract towards the linear feeder 512 to facilitate gripping the rivet rod; when the rotary output shaft rotates to the limit position in the horizontal direction, the Y-shaped pneumatic gripper moves back and forth horizontally towards the fixture assembly 2 to facilitate placing the rivet rod on the fixture assembly 2; specifically, the rivet rod is horizontally placed at the discharge port of the linear feeder 512, and the axis line of the rivet rod is parallel to the horizontal plane. Initially, the Y-shaped pneumatic gripper faces downward and moves downward close to the rivet rod. The Y-shaped pneumatic gripper grips the rivet rod, and the linear cylinder is activated to make the Y-shaped pneumatic gripper rise. After rising to a preset position (for example, a position with the same height as the fixture assembly 2), the rotary output shaft of the rotary cylinder rotates 90°. The Y-shaped pneumatic gripper rotates and faces the fixture assembly 2 horizontally. At this time, the rivet rod is in an upright state, and the axis line of the rivet rod is in the vertical direction. The Y-shaped pneumatic gripper grips the rivet rod and moves horizontally towards the fixture assembly 2 to send the rivet rod to the fixture assembly 2, and then the Y-shaped pneumatic gripper releases and places the rivet rod on the fixed station of the fixture assembly 2. Thus, one-time automatic feeding of the rivet rod is completed.

[0045] Specifically, in order to perform the rivet rod feeding more precisely and conveniently, as Figure 1As shown in the figure, a translation driving mechanism 524 can also be provided on one side around the fixture assembly 2. The translation driving mechanism 524 includes a linear guide rail arranged on one side of the peripheral side of the fixture assembly 2 and parallel to the tabletop, a base block movably mounted on the linear guide rail along the extending direction of the linear guide rail, and a third power device drivingly connected to the base block and used to drive the base block to act. The rotary cylinder is mounted on the base block, and the base block can drive the second rotary driving mechanism 521 and the components mounted on the second rotary driving mechanism 521 to move along the linear guide rail, and can move closer to or away from the fixture assembly 2. When the jaw mechanism 521 rotates towards the fixture assembly 2, both the translation driving mechanism and the moving driving mechanism cooperate to move closer to or away from the fixture assembly 2, so that the stroke is longer, two-stage adjustment can be achieved, and it is more convenient to place the riveting rod.

[0046] Preferably, the third power device can be a servo motor, and the servo motor can be drivingly connected to the base block through a lead screw-nut mechanism. The lead screw-nut mechanism includes a lead screw and a moving nut mounted on the lead screw. The lead screw is arranged in parallel with the linear guide rail, the base block is fixedly connected to the moving nut, and the servo motor is drivingly connected to the lead screw and drives the lead screw to rotate.

[0047] In the above rivet manufacturing equipment, as Figure 2 shown, for the structural setting of the fixture assembly 2, as a possible implementation manner, the fixture assembly 2 includes a jaw chuck. The jaw chuck includes: a chuck and at least two jaws provided on the chuck for clamping the riveting rod. The at least two jaws are evenly spaced around the circumferential side of the axis of the chuck. A fixing station for placing the riveting rod is formed at the position corresponding to the axis of the chuck in the chuck. Each jaw surrounds the fixing station, and each jaw moves closer to or away from the fixing station in the radial direction of the chuck. A clamping surface is formed on the side of each jaw facing the fixing station. The jaw chuck operates quickly and accurately, and has a good fixing effect, so that the riveting rod can be firmly positioned and fixed at the fixing station, which is beneficial to ensuring the spinning quality during the stamping forming process of the riveting rod and the rivet head.

[0048] As a preferred method, the fixture assembly 2 can be a pneumatic three-jaw chuck. The three jaws clamp the riveting rod, which is stable and reliable, and the pneumatic jaws operate quickly and have high precision, which is beneficial to improving work efficiency.

[0049] Further, the above rivet manufacturing equipment further includes a receiving tray. An opening is provided in the middle of the jaw chuck, and the receiving tray is arranged below the opening. When the jaws release the riveting rod (after the riveting rod and the rivet head are welded to form a rivet), the riveting rod passes through the opening and falls into the receiving tray. Preferably, a receiving pipeline is provided between the opening of the jaw chuck and the receiving tray, and the rivet can slide into the receiving tray in the receiving pipeline, avoiding the rivet from scattering outside the receiving tray.

[0050] In the above rivet manufacturing equipment, for the heating device, specifically, as Figure 1As shown in the figure, the heating device 4 includes an AC inverter welding machine, and the welding head of the AC inverter welding machine constitutes the heating end 41; a welding head driving mechanism for driving the welding head to approach or move away from the connecting end of the riveting rod is provided on the periphery of the fixture assembly 2. The welding driving mechanism includes: a linear track extending towards the fixture assembly 2 at one end, a support plate movably mounted on the linear track along the linear track, and a cylinder assembly for driving the support plate to reciprocate along the linear track, and the welding head is mounted on the support plate. Specifically, the linear track is arranged parallel to the tabletop. Preferably, the linear track can be arranged on the tabletop, the linear track is arranged beside the fixture assembly 2, the welding head is fixed on the support plate, and as the support plate reciprocates on the linear track, it can approach or move away from the fixture assembly 2, facilitating the heating of the riveting rod.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rivet manufacturing device, characterized in that: include: A work frame, the work frame comprising a workbench and a bracket fixed to the workbench; A clamp assembly, which is mounted on the workbench and is used to clamp, fix or release the rivet rod; A spinning assembly, the spinning assembly is mounted on the bracket and is located on a side of the clamp assembly away from the table, the spinning assembly includes a rivet head tooling for clamping or releasing the rivet head, a first rotation drive mechanism for driving the rivet head tooling to rotate around its first axis, and a lifting drive mechanism for driving the rivet head tooling to reciprocate in a direction perpendicular to the table; wherein the first axis is perpendicular to the table, and when the rivet head is aligned with the rivet rod and connected by forming, the first axis coincides with the axis center line of the rivet rod; A heating device, wherein the heating device has a heating end, and the heating end is used to heat an end of the rivet rod facing the rivet head, so that the rivet head is connected to one end of the rivet rod by forming; A feeding device, the feeding device comprising a feeding vibration assembly and a material picking and placing assembly, the feeding vibration assembly is used to hold the material and convey the rivet rod to the clamp assembly, and the material picking and placing assembly is used to clamp the rivet rod and place it on the clamp assembly; The control device, the clamp assembly, the spinning assembly, the heating device, the feeding vibration assembly and the material picking and placing assembly are all connected to the control device by signal.

2. The rivet manufacturing equipment according to claim 1, characterized in that: The lifting drive mechanism includes a guide rail extending in a direction perpendicular to the table surface, a moving part movably mounted on the guide rail along the extending direction of the guide rail, and a first power device for driving the moving part to move; The first rotary drive mechanism is installed on the moving part, and includes a rotating part, a second power device which is transmission-connected with the rotating part and used for driving the rotating part to rotate around the first axis, and the rivet head tooling is installed on the rotating part.

3. The rivet manufacturing equipment according to claim 1, characterized in that: The feeding vibration assembly includes a discharge vibration plate and a linear feeder. The discharge vibration plate includes a chassis, a hopper arranged on the chassis, and a vibrator arranged at the bottom of the hopper. The hopper is used to hold rivet rods, and the vibrator is used to drive the hopper to vibrate so that a spiral conveying channel can be formed in the hopper. The linear feeder has a linear conveying channel, and the rivet rods can be conveyed along the linear conveying channel. The feed port of the linear conveying channel is connected to the discharge port of the spiral conveying channel, and the discharge port of the linear conveying channel is close to the clamp assembly.

4. The rivet manufacturing equipment according to claim 3, characterized in that: The material handling assembly includes: a clamping mechanism for clamping or releasing the rivet, a second rotating drive mechanism for driving the clamping mechanism to rotate around a second axis parallel to the table, and a moving drive mechanism for driving the clamping mechanism to move along a straight line, wherein the straight line is perpendicular to the second axis.

5. The rivet manufacturing equipment according to claim 4, characterized in that: The clamp mechanism includes a Y-shaped pneumatic clamp, the second rotary drive mechanism includes a rotary cylinder, and the mobile drive mechanism includes: a guide rail extending from the discharge port of the linear conveying channel to the clamp assembly, a slider movably mounted on the guide rail along the extension direction of the guide rail, and a power assembly for driving the slider to move; The rotating cylinder is arranged on one side of the peripheral side of the clamp assembly, and the rotating cylinder has a rotating output end. The moving drive mechanism is installed on the rotating output end so that the moving drive mechanism rotates with the rotating output end, and the axis of the rotating output end is arranged to coincide with the second axis line; the Y-shaped pneumatic clamp is installed on the slider so that the Y-shaped pneumatic clamp moves back and forth along the guide rail with the slider.

6. The rivet manufacturing equipment according to claim 5, characterized in that: The material picking and placing assembly also includes: a translation drive mechanism, which includes: a linear guide rail arranged on one side of the circumference of the clamp assembly and parallel to the table top, a base block movably installed on the linear guide rail along the extension direction of the linear guide rail, and a third power device that is transmission-connected to the base block and is used to drive the base block to move, wherein the rotary cylinder is installed on the base block.

7. The rivet manufacturing equipment according to any one of claims 1 to 6, characterized in that: The clamp assembly includes a jaw chuck, which includes: a chuck and at least two jaws on the chuck for clamping the rivet rod, at least two of the jaws are evenly spaced around the circumference of the axis of the chuck, a position in the chuck corresponding to the axis forms a fixed position for placing the rivet rod, each of the jaws approaches or moves away from the fixed position in the radial direction of the chuck, and each of the jaws forms a clamping surface on the side facing the fixed position.

8. The rivet manufacturing equipment according to claim 7, characterized in that: The clamp assembly includes a pneumatic three-jaw chuck.

9. The rivet manufacturing equipment according to claim 7, characterized in that: It also includes a material receiving tray. An opening is provided in the middle of the clamping jaw chuck. The material receiving tray is arranged below the opening. When the clamping jaw releases the rivet rod, the rivet rod passes through the opening and falls into the material receiving tray.

10. The rivet manufacturing equipment according to any one of claims 1 to 6, characterized in that: The heating device comprises an AC inverter welding machine, the welding head of which constitutes the heating end; a welding head driving mechanism for driving the welding head to approach or move away from the connecting end of the rivet rod is arranged on the peripheral side of the clamp assembly.

11. The rivet manufacturing equipment according to claim 10, characterized in that: The welding head driving mechanism includes: a linear track with one end extending toward the clamp assembly, a support plate movably mounted on the linear track, and a cylinder assembly for driving the support plate to reciprocate along the linear track, and the welding head is mounted on the support plate.

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