Automatic rivet fixing machine

Abstract

The utility model discloses an automatic rivet fixing machine, including work head, the carousel on work head and the eight stations around the carousel periphery side, eight stations include the rivet feeding station, two product feeding stations, detection station, two rivet pressing stations, unloading station and unloading detection station of sequential arrangement, be provided with eight positioning fixtures on the carousel, eight positioning fixtures correspond respectively with eight stations, be equipped with a plurality of longitudinal through -hole on each positioning fixture, be equipped with thimble in each through -hole, and thimble inserts into corresponding through -hole from below to above, and thimble can slide up and down in the through -hole. The utility model discloses through setting up the positioning fixture and bearing product, through carousel and drive product and displace to eight stations in turn, through rivet feeding station, two product feeding stations and detection station, realize efficient positioning and put, through two rivet pressing stations, unloading station and unloading detection station, carry out rivet pressing, unloading work step, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, specifically an automatic riveting fixing machine. Background Technology

[0002] When products need to be fixed in assembly, they are usually secured with rivets. However, due to the special nature of the products, there are multiple riveting assembly positions, requiring multiple holes for rivet placement before riveting. In automated production, to improve production efficiency, a device is needed to automatically perform the rivet positioning, riveting, inspection, and unloading processes. Therefore, an automatic rivet fixing machine has been developed. Utility Model Content

[0003] The purpose of this invention is to provide an automatic riveting machine that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic riveting fixing machine, comprising a worktable, a turntable on the worktable, and eight workstations surrounding the turntable. The eight workstations include a rivet feeding workstation, two product feeding workstations, an inspection workstation, two riveting workstations, a material unloading workstation, and a material unloading inspection workstation arranged in sequence. The turntable is provided with eight positioning fixtures, which correspond to the eight workstations respectively. Each positioning fixture is provided with several longitudinally penetrating through holes, and each through hole is provided with a pin. The pin is inserted into the corresponding through hole from bottom to top, and the pin can slide up and down in the through hole.

[0005] Preferably, a roller is rotatably connected to the inner side of the movable seat, and an annular platform concentrically arranged below the turntable is provided. The roller and the annular platform are arranged vertically and abut against each other. The positioning fixture is also provided with a limiting boss, and the through hole is provided on the limiting boss.

[0006] Preferably, the rivet feeding station includes a vibratory feeder and a positioning assembly. The positioning assembly includes a positioning table and a rear baffle and a front baffle disposed on the positioning table. The front baffle is slidably connected to the positioning table and can slide closer to or further away from the rear baffle. The rear baffle has a plurality of limiting grooves on the side near the front baffle and a plurality of stop bars on the side near the rear baffle. The positions and numbers of the plurality of limiting grooves and the plurality of stop bars correspond to each other, and the corresponding limiting grooves and stop bars form a limiting structure.

[0007] Preferably, a first propulsion cylinder is provided on the positioning platform, the movable end of the first propulsion cylinder is connected to the front baffle, the rear baffle is slidably connected to the positioning platform, and the transmission direction of the rear baffle is perpendicular to the transmission direction of the front baffle. A second propulsion cylinder is provided on the positioning platform, the second propulsion cylinder is connected to the rear baffle, the vibrating plate is connected to a material channel, the outlet of the material channel abuts against the rear baffle, and the outlet of the material channel is flush with the height of the limiting groove.

[0008] Preferably, the positioning component further includes a lifting module and a push plate disposed at the movable end of the lifting module, the push plate being driven upward to abut against the movable seat.

[0009] Preferably, each of the two riveting stations is provided with a pressing module, and a fan-shaped fixing frame is provided between the two pressing modules. A top pressing frame is provided directly below the pressing module, and a roller is movably connected to the top of the top pressing frame. The roller abuts against the bottom surface of the turntable.

[0010] Preferably, a rotating module is provided on the worktable, the rotating module is linked to the turntable, the rotating module includes a rotary motor and a reducer linked to the rotary motor, and the movable end of the reducer is linked to the turntable.

[0011] Preferably, the unloading station includes a transmission assembly and a clamping assembly mounted on the transmission assembly. The transmission assembly includes a lifting motor and a rotating shaft rotatably connected to the movable end of the lifting motor. The transmission assembly also includes a fixed sleeve mounted on the worktable, with a longitudinally penetrating channel in the fixed sleeve. The rotating shaft passes through the channel and connects to the clamping assembly. A sliding rail connected to the channel is provided on the side end of the fixed sleeve. A roller three is rotatably connected to the side end of the rotating shaft. The roller three is located inside the sliding rail, and the upper end of the sliding rail faces the center of the turntable. The sliding rail rotates from top to bottom outwards.

[0012] Preferably, the gripping assembly includes a connecting rod and a finger cylinder, wherein one end of the connecting rod is connected to the top of the rotating shaft, and the other end of the connecting rod is connected to the finger cylinder.

[0013] Preferably, both the inspection station and the unloading inspection station are equipped with multiple sensors, and the sensing end of the sensor is aligned directly above the corresponding positioning fixture.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model uses a positioning fixture to support the product, and a turntable to move the product sequentially to eight workstations. The product is placed in a rivet loading station, two product loading stations, and an inspection station to achieve efficient positioning and feeding. The riveting and feeding steps are carried out through two riveting stations, a feeding station, and a feeding inspection station, thereby improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning component of this utility model. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the positioning component of this utility model. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the positioning fixture of this utility model;

[0020] Figure 5 This is a partial structural diagram of the present invention. Figure 1 ;

[0021] Figure 6 This is a partial structural diagram of the present invention. Figure 2 ;

[0022] Figure 7 This is a partial structural diagram of the present invention. Figure 3 ;

[0023] Figure 8 This is a partial structural diagram of the present invention. Figure 4 . Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Please see Figures 1 to 8This utility model provides an embodiment of an automatic riveting machine, comprising a worktable 100, a turntable 1 on the worktable 100, and eight workstations surrounding the turntable. The eight workstations include a riveting loading workstation 10, two product loading workstations 20, an inspection workstation 30, two riveting workstations 40, a unloading workstation 50, and an unloading inspection workstation 60 arranged in sequence. The turntable 1 is provided with eight positioning fixtures 70, which correspond to the eight workstations respectively. The turntable 1 can drive the positioning fixtures 70 to pass through the eight workstations in sequence. Through the riveting loading workstation 10, the two product loading workstations 20, and the inspection workstation 30, efficient positioning and feeding are achieved. Through the two riveting workstations 40, the unloading workstation 50, and the unloading inspection workstation 60, the riveting and unloading work steps are performed, thereby improving production efficiency.

[0027] The rivet feeding station 10 includes a vibratory feeder 11 and a positioning assembly 12. The vibratory feeder 11 is used to vibrate and feed rivets, each with a hole in the middle. The positioning assembly 12 includes a positioning table 121 and a rear baffle 122 and a front baffle 123 mounted on the positioning table 121. The front baffle 123 is slidably connected to the positioning table 121. The rear baffle 122 has several limiting grooves 124 on the side near the front baffle 123, and the front baffle 123 has several stop bars 125 on the side near the rear baffle 122. The number and position of the limiting grooves 124 correspond to the number of stop bars 125. The vibratory feeder 11 is connected to a material channel 13. The outlet of the material channel 13 abuts against the rear baffle 122, and the outlet of the material channel 13 is flush with the height of the limiting grooves 124. The vibratory feeder 11 vibrates the rivet into the corresponding limiting groove 124. The front baffle 123 can slide closer to or away from the rear baffle 122. The positioning fixture 70 is provided with several through holes 71 and a pin 72. The pin 72 passes through the through hole 71 from top to bottom. The front baffle 123 approaches the rear baffle 122. The corresponding limiting groove 124 and the stop bar 125 approach each other to form a limiting structure. Each limiting structure can clamp the positioning rivet for rivet positioning. Several limiting structures and several through holes 71 are aligned from top to bottom. Then the pin 32 moves upward and inserts the rivet. Finally, the front baffle 123 moves away from the rear baffle 122, and the rivet slides down along the pin 72. Multiple holes can be used for material feeding, achieving efficient positioning and feeding, and improving production efficiency.

[0028] Furthermore, the bottom of the positioning fixture 70 is movably connected to a movable seat 74, and several ejector pins 72 are mounted on the movable seat 74. The ejector pins 72 move up and down with the movable seat 74. The positioning assembly 12 also includes a lifting module 126 and a push plate 127 disposed at the movable end of the lifting module 126. The push plate 127 moves upward and can abut against the movable seat 74. The lifting module 126 is used to lift the movable seat 74 to realize the upward movement of the ejector pins 72. After the lifting module 126 is reset, the movable seat 74 and the ejector pins 72 fall downward under the action of gravity.

[0029] Furthermore, a first propulsion cylinder 128 is provided on the positioning platform 121, and the movable end of the first propulsion cylinder 128 is connected to the front baffle 123.

[0030] Furthermore, the rear baffle 122 is slidably connected to the positioning platform 121, and the transmission direction of the rear baffle 122 is perpendicular to the transmission direction of the front baffle 123. The positioning platform 121 is provided with a second propulsion cylinder 129, which is connected to the rear baffle 122. This structure can connect a material channel 13 through the vibrating plate 11 and continuously feed material. Since the outlet of the material channel 13 is in contact with the rear baffle 122, no material will fall. When the rear baffle 122 moves, when the outlet of the material channel 13 is aligned with the limiting groove 124, the rivet is fed into the limiting groove 124.

[0031] Furthermore, the limiting strip 125 has a locking groove 1251 on the side near the limiting groove, and the structure of the locking groove 1251 is adapted to the shape of the rivet, and it clamps with the limiting groove 124 to achieve a better positioning effect.

[0032] The movable seat 74 is also provided with several guide posts 75, which correspond one-to-one with several through holes 71. The guide posts 75 are inserted into the corresponding through holes 71 from bottom to top, and the ejector pins 72 are set on the guide posts 75.

[0033] In this embodiment, the cross-section of the through hole 71 is convex (not shown in the figure), wherein the lower end diameter of the through hole 71 is adapted to the diameter of the guide post 75, and the upper end diameter of the through hole 71 is adapted to the diameter of the ejector pin 72.

[0034] A roller 76 is rotatably connected to the inner side of the movable seat 74. An annular platform 2 is set below the turntable 1 and is concentric with the turntable 1. The roller 76 and the annular platform 2 are arranged vertically and abut against each other. The annular platform 27 has the effect of limiting the downward movement of the movable seat 74, which can prevent the guide post 75 from disengaging from the through hole 71. At the same time, during the rotation of the turntable 1, the roller 76 and the annular platform 2 are driven relative to each other without affecting the rotation effect of the turntable 1. The movable seat 74 is driven by the corresponding positioning fixture 70.

[0035] The movable seat 74 and the ejector pin 72 can slide in the up and down direction, while the guide post 75 slides relative to each other in the through hole 71. While the ejector pin 72 moves up and down, it can make the rivet fit more snugly into the ejector pin 72, thereby improving the positioning effect of the rivet and the positioning fixture 70.

[0036] In this embodiment, the two product loading stations 20 are manually loaded, and the holes of the products are aligned with the rivets and ejector pins 72 to achieve the positioning effect.

[0037] In this embodiment, the positioning fixture 70 is provided with a limiting boss 73, and a through hole 71 is provided on the limiting boss 73. The limiting boss 73 can be fitted with the product and fitted with the ejector pin 72 for limiting, which further improves the positioning effect between the product and the positioning fixture 70.

[0038] The workbench 100 is also equipped with a rotating module 3, which includes a rotating motor 4 and a reducer 5 that is linked to the rotating motor 4. The movable end of the reducer 5 is linked to the turntable 1.

[0039] Furthermore, the rotary motor 4 is a servo motor, which can be controlled by a PLC program to rotate the servo motor a certain number of times, so that the turntable 1 can rotate at the set angle, and the positioning fixture 70 can be moved to the set position for the next processing step.

[0040] After the rivet, product, and positioning fixture 70 are positioned together, they are rotated to the detection station 30 via turntable 1. Multiple sensors on the detection station 30 detect whether there is a product on the corresponding positioning fixture 70. If a product is detected, the two riveting stations 40 are driven sequentially via turntable 1. If no product is detected, the turntable 1 stops rotating and an alarm is issued, prompting the operator to handle the situation.

[0041] Each of the two riveting stations 40 is equipped with a pressing module 41, and a fan-shaped fixing frame 42 is provided between the two pressing modules 41. A top pressing frame 43 is provided directly below the pressing module 41. Rollers 44 are movably connected to the top of the top pressing frame 43, and the rollers 44 abut against the bottom surface of the turntable 1.

[0042] The pressing module 41 includes a lifting mechanism and a pressing block disposed at the movable end of the lifting mechanism. The pressing block can be used to press the rivet up and down. The two pressing modules 41 can be used to press the two positioning fixtures 70 respectively, which improves the riveting efficiency. The fan-shaped fixing frame 42 can maintain the stable support of the two pressing modules 41 and ensure the riveting effect.

[0043] A soft rubber layer is provided on the circumferential end face of roller 44. Roller 44 abuts against the bottom surface of turntable 1. When riveting the product, roller 44 lifts turntable 1, improves the overall support of riveting station 40, and ensures the riveting effect.

[0044] The unloading station 50 includes a transmission assembly 51 and a clamping assembly 52 disposed on the transmission assembly 51. The transmission assembly 51 includes a lifting motor 53 and a rotating shaft 54 ​​rotatably connected to the movable end of the lifting motor 53. The transmission assembly 51 also includes a fixed sleeve 55 disposed on the worktable 100. The fixed sleeve 55 has a longitudinally penetrating channel. The rotating shaft 54 ​​passes through the channel and is connected to the clamping assembly 52. ​​A sliding rail 56 connected to the channel is provided on the side end of the fixed sleeve 55. A roller 57 is rotatably connected to the side end of the rotating shaft 54. The roller 57 is located inside the sliding rail 56, and the upper end of the sliding rail 56 faces the center of the turntable 1. The sliding rail 56 rotates from top to bottom outwards.

[0045] The gripping assembly 52 includes a connecting rod 58 and a finger cylinder 59, wherein one end of the connecting rod 58 is connected to the top end of the rotating shaft 54, and the other end of the connecting rod 58 is connected to the finger cylinder 59.

[0046] The lifting cylinder 53 drives the rotating shaft 54 ​​to move up and down. During the upward transmission, the roller 3 57 slides along the sliding track 56. When it reaches the top, the connecting rod 58 faces the center of the turntable 1. The product position after riveting is moved to below the finger cylinder 59. The finger cylinder 59 clamps the riveted product. The lifting cylinder 53 resets downward, driving the product to move. Finally, the finger cylinder 59 releases the product, realizing unloading.

[0047] Multiple sensors on the unloading and inspection station 60 are aligned with the sensor heads directly above the corresponding positioning fixtures 70. If no product is detected, the positioning fixtures 70 are moved sequentially to the rivet loading station 10 via the turntable 1. If a product is detected, the turntable 1 stops rotating and an alarm is triggered, prompting the operator to handle the situation.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic riveting machine, comprising a worktable, characterized in that: The workbench has a turntable and eight workstations surrounding it. The eight workstations include a rivet loading station, two product loading stations, an inspection station, two riveting stations, a unloading station, and an unloading inspection station arranged in sequence. The turntable is equipped with eight positioning fixtures, which correspond to the eight workstations. Each positioning fixture has several longitudinally penetrating through holes, and each through hole has a ejector pin inserted into the corresponding through hole from bottom to top. The ejector pin can slide up and down within the through hole.

2. The automatic riveting machine according to claim 1, characterized in that: The positioning fixture is movably connected to a movable seat at its bottom. A roller is rotatably connected to the inner side of the movable seat. An annular platform is set below the turntable and is concentric with the turntable. The roller and the annular platform are arranged vertically and abut against each other. The positioning fixture is also provided with a limiting boss, and the through hole is set on the limiting boss.

3. An automatic riveting fixing machine according to claim 1, characterized in that: The rivet loading station includes a vibratory feeder and a positioning assembly. The positioning assembly includes a positioning table and a rear baffle and a front baffle set on the positioning table. The front baffle is slidably connected to the positioning table and can slide closer to or further away from the rear baffle. The rear baffle has several limiting grooves on the side closer to the front baffle and several stop bars on the side closer to the rear baffle. The positions and numbers of the limiting grooves and stop bars correspond to each other, and the corresponding limiting grooves and stop bars form a limiting structure.

4. An automatic riveting fixing machine according to claim 3, characterized in that: A first propulsion cylinder is provided on the positioning platform. The movable end of the first propulsion cylinder is connected to the front baffle. The rear baffle is slidably connected to the positioning platform, and the transmission direction of the rear baffle is perpendicular to the transmission direction of the front baffle. A second propulsion cylinder is provided on the positioning platform and is connected to the rear baffle. The vibrating plate is connected to a material channel. The outlet of the material channel abuts against the rear baffle, and the outlet of the material channel is flush with the height of the limiting groove.

5. An automatic riveting fixing machine according to claim 3, characterized in that: The positioning assembly also includes a lifting module and a push plate located at the movable end of the lifting module. The push plate can move upward and abut against the movable seat.

6. An automatic riveting fixing machine according to claim 1, characterized in that: Each of the two riveting stations is equipped with a pressing module, and a fan-shaped fixing frame is provided between the two pressing modules. A top pressing frame is provided directly below the pressing module, and a roller is movably connected to the top of the top pressing frame. The roller abuts against the bottom surface of the turntable.

7. An automatic riveting fixing machine according to claim 1, characterized in that: A rotating module is provided on the workbench. The rotating module is linked to the turntable. The rotating module includes a rotary motor and a reducer linked to the rotary motor. The movable end of the reducer is linked to the turntable.

8. An automatic riveting fixing machine according to claim 1, characterized in that: The unloading station includes a transmission assembly and a clamping assembly mounted on the transmission assembly. The transmission assembly includes a lifting motor and a rotating shaft rotatably connected to the movable end of the lifting motor. The transmission assembly also includes a fixed sleeve mounted on the worktable, with a longitudinally penetrating channel in the fixed sleeve. The rotating shaft passes through the channel and connects to the clamping assembly. A sliding rail connected to the channel is provided on the side end of the fixed sleeve. A roller three is rotatably connected to the side end of the rotating shaft. The roller three is located inside the sliding rail, and the upper end of the sliding rail faces the center of the turntable. The sliding rail rotates from top to bottom outwards.

9. An automatic riveting fixing machine according to claim 8, characterized in that: The gripping assembly includes a connecting rod and a finger cylinder, wherein one end of the connecting rod is connected to the top of the rotating shaft, and the other end of the connecting rod is connected to the finger cylinder.

10. An automatic riveting fixing machine according to claim 1, characterized in that: Both the inspection station and the unloading inspection station are equipped with multiple sensors, and the sensing end of the sensor is aligned directly above the corresponding positioning fixture.

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