阅读说明：本技术 用于椅子托盘连接件的自动铆接机及其工作方法 (Automatic riveting machine for chair tray connecting piece and working method thereof ) 是由 杨余东 于 2021-05-24 设计创作，主要内容包括：用于椅子托盘连接件的自动铆接机及其工作方法,其中,自动铆接机包括设置有若干夹具的回转工作台,所述回转工作台的旋转方向上依次设置装夹工位、铆钉装配工位一、铆钉装配工位二、铆接工位一、铆接工位二、卸料工位；所述铆钉装配工位一与铆钉装配工位二,均设置有一个机械手,其中,一个机械手将铆钉装配至托盘主体上的其中一个铆接孔中,另一个机械手将铆钉装配至托盘主体上的另一个铆接孔中；所述铆接工位一与铆接工位二,均设置有位于所述回转工作台上方的用于压紧铆钉上部的压紧装置以及位于所述回转工作台下方的墩粗机构；本发明,加工效率高,且制造成本低。(The automatic riveting machine comprises a rotary worktable provided with a plurality of clamps, and a clamping station, a first rivet assembling station, a second rivet assembling station, a first riveting station, a second riveting station and an unloading station are sequentially arranged in the rotating direction of the rotary worktable; the first rivet assembling station and the second rivet assembling station are respectively provided with a manipulator, wherein one manipulator assembles the rivet into one riveting hole on the tray main body, and the other manipulator assembles the rivet into the other riveting hole on the tray main body; the first riveting station and the second riveting station are respectively provided with a pressing device which is positioned above the rotary worktable and used for pressing the upper part of a rivet and a upsetting mechanism which is positioned below the rotary worktable; the invention has high processing efficiency and low manufacturing cost.)

1. The automatic riveting machine for the chair tray connecting piece is characterized by comprising a rotary workbench (1) provided with a plurality of clamps (11), wherein a clamping station, a rivet assembling station I, a rivet assembling station II, a riveting station I, a riveting station II and an unloading station are sequentially arranged in the rotating direction of the rotary workbench (1);

the first rivet assembling station and the second rivet assembling station are respectively provided with a manipulator (21), wherein one manipulator (21) assembles the rivet into one riveting hole (011) in the tray main body (01), and the other manipulator (21) assembles the rivet into the other riveting hole (011) in the tray main body (01);

the first riveting station and the second riveting station are respectively provided with a pressing device (4) which is positioned above the rotary worktable (1) and used for pressing the upper part of a rivet, and a upsetting mechanism (5) which is positioned below the rotary worktable (1);

the clamp (11) comprises a bottom plate (111), a positioning plate (112) arranged on the bottom plate (111) and two positioning columns (113), the two positioning columns (113) are respectively used for being matched and positioned with two positioning holes (012) in the tray main body (01), and the positioning plate (112) is used for positioning a side edge part (013) of the tray main body (01).

2. The automatic riveter for chair tray connectors according to claim 1, wherein the first rivet assembling station and the second rivet assembling station are both provided with a mechanical arm (22); the mechanical arm (22) comprises a horizontal rail (221), a horizontal sliding table (222) arranged on the horizontal rail (221), a vertical rail (223) arranged on the horizontal sliding table (222), and a vertical sliding block (224) arranged on the vertical rail (223), wherein the mechanical arm (21) is connected with the vertical sliding block (224).

3. The automatic riveter for chair tray coupling parts according to claim 1, further comprising an auxiliary fixing structure (3) for pressing an upper surface of the tray main body (01); the auxiliary fixing structure (3) comprises a mounting table (31), a hinge frame (32) arranged on the mounting table (31), a pressing plate (33) rotatably arranged on the hinge frame (32), and a first air cylinder (34) used for controlling the pressing plate (33) to move.

4. The automatic riveting machine for the tray connecting piece of the chair according to claim 1, wherein the first rivet assembling station and the second rivet assembling station are both provided with a feeding pipe (23) and a rivet adjusting mechanism (24); the rivet adjusting mechanism (24) comprises an adjusting shaft (241), a gear (242) which is connected with the adjusting shaft (241) and coaxially arranged, a rack (243) which is meshed with the gear (242), and a second air cylinder (244) which is connected with the rack (243), wherein a receiving groove (2411) is formed in the outer circumferential surface of the adjusting shaft (241), and the receiving groove (2411) is used for receiving rivets sent out from an outlet of the feeding pipe (23); the receiving groove (2411) is changed into a vertical direction after the second air cylinder (244) performs a pushing stroke action, and is aligned with the outlet of the feeding pipe (23) after the second air cylinder (244) performs a returning stroke action.

5. The automatic riveter for chair tray connectors according to claim 1, wherein the first rivet assembling station and the second rivet assembling station are both further provided with a guide device (6); the guiding device (6) comprises a guiding needle (61) arranged below the rotary working table (1) and a lifting mechanism (62) connected with the guiding needle (61), and a yielding hole (12) for the guiding needle (61) to pass through is formed in the rotary working table (1).

6. The automatic riveter of claim 5, characterized in that, the elevating mechanism (62) comprises an elevating cylinder, an oil cylinder, an elevating screw.

7. The automatic riveter for chair tray connections according to claim 1, characterised in that the press device (4) comprises a press block (41) and a press block drive mechanism (42) connected to the press block (41).

8. The automatic riveter for chair tray connections according to claim 1, characterised in that the upsetting mechanism (5) comprises an upsetting head (51) which can be moved towards and away from the rivet and an upsetting head drive structure (52) connected to the upsetting head (51).

9. The automatic riveter for chair tray connectors according to claim 1, characterised in that a discharge mechanism (7) is provided on the discharge station; the discharging mechanism (7) comprises an adsorption device (71) used for adsorbing and releasing a handle, a first lifting cylinder (72) connected with the adsorption device (71), a first mounting frame (73) used for mounting the first lifting cylinder (72), and a translation cylinder (74) connected with the first mounting frame (73).

10. The operating method of an automatic riveter for chair tray connectors according to claim 1, comprising the steps of:

step 1: after an assembly part formed after the mounting part (02) is assembled in the tray main body (01) is clamped on the rotary workbench (1) through a clamp (11), the rotary workbench (1) rotates, a workpiece is sent to a first rivet assembling station, a manipulator (21) on the first rivet assembling station grabs a rivet and assembles the rivet into one riveting hole (011) of the tray main body (01), then the rotary workbench (1) rotates, the workpiece is sent to a second rivet assembling station, and the manipulator (21) on the second rivet assembling station grabs the rivet and assembles the rivet into the other riveting hole (011) of the tray main body (01);

step 2: the rotary worktable (1) rotates, a workpiece is conveyed to a first riveting station, a pressing device (4) on the first riveting station is pressed on the upper portion of one rivet, a upsetting mechanism (5) is used for upsetting the lower end of the rivet to realize riveting, then the rotary worktable (1) rotates, the workpiece is conveyed to a second riveting station, the pressing device (4) on the second riveting station is pressed on the upper portion of the other rivet, and the upsetting mechanism (5) is used for upsetting the lower end of the rivet to realize riveting;

and step 3: the rotary working table (1) rotates to convey the workpiece to the unloading station.

Technical Field

The invention relates to an automatic riveting machine for a chair tray connecting piece and a working method thereof, belonging to the field of manufacturing of chair tray connecting pieces.

Background

A chair tray connecting piece is a part used for connecting a chair tray and a backrest tail end connecting part, and the structure of the chair tray connecting piece is shown in figures 5-6, and comprises a U-shaped tray main body 01 and a mounting piece 02 assembled in the tray main body 01, wherein the mounting piece 02 is used for being inserted into the backrest tail end connecting part, the backrest tail end connecting part is generally of an inserted link structure, the tray main body 01 is provided with two riveting holes 011, rivets 03 are arranged in the riveting holes 011, the rivets 03 play a role in blocking, the mounting piece 02 is limited in the tray main body 01, the mounting piece 02 is prevented from slipping from the U-shaped hole of the tray main body 01, and positioning holes 012 are further arranged on the tray main body 01.

At present, in the prior art, the manufacture of the tray handle is completed through manual riveting, and the steps of tray body clamping, mounting part assembling, riveting, finished product disassembling and the like are required to be sequentially performed, so that the manual investment is high, the manufacturing cost is high, and the processing efficiency is low.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide the automatic riveting machine for the chair tray connecting piece, which has high processing efficiency and low manufacturing cost.

The automatic riveting machine for the chair tray connecting piece comprises a rotary workbench provided with a plurality of clamps, wherein a clamping station, a rivet assembling station I, a rivet assembling station II, a riveting station I, a riveting station II and an unloading station are sequentially arranged in the rotating direction of the rotary workbench;

the first rivet assembling station and the second rivet assembling station are respectively provided with a manipulator, wherein one manipulator assembles the rivet into one riveting hole on the tray main body, and the other manipulator assembles the rivet into the other riveting hole on the tray main body;

the first riveting station and the second riveting station are respectively provided with a pressing device which is positioned above the rotary worktable and used for pressing the upper part of a rivet and a upsetting mechanism which is positioned below the rotary worktable;

the clamp comprises a bottom plate, a positioning plate and two positioning columns, wherein the positioning plate and the two positioning columns are arranged on the bottom plate, the two positioning columns are respectively used for being matched and positioned with the two positioning holes in the tray main body, and the positioning plate is used for positioning the side edge parts of the tray main body.

According to the automatic riveting machine, after the mounting part is arranged in the tray main body at the clamping station, the assembly body of the mounting part and the assembly body of the tray main body are fixed on the rotary workbench through the clamp, two rivets are automatically assembled at the first rivet assembling station and the second rivet assembling station, two pairs of rivets at the first rivet assembling station and the second rivet assembling station are automatically upset and riveted at the same time, finished product manufacturing is completed, and the finished product is disassembled at the unloading station.

Preferably, the rivet assembling station I and the rivet assembling station II are both provided with mechanical arms; the mechanical arm comprises a horizontal rail, a horizontal sliding table arranged on the horizontal rail, a vertical rail arranged on the horizontal sliding table, and a vertical sliding block arranged on the vertical rail, wherein the mechanical arm is connected with the vertical sliding block.

Preferably, the tray further comprises an auxiliary fixing structure for pressing the upper surface of the tray main body; the auxiliary fixing structure comprises a mounting table, a hinge frame arranged on the mounting table, a pressing plate rotatably arranged on the hinge frame, and a first air cylinder used for controlling the pressing plate to act.

Preferably, the first rivet assembling station and the second rivet assembling station are both provided with a feeding pipe and a rivet adjusting mechanism; the rivet adjusting mechanism comprises an adjusting shaft, a gear, a rack and a second air cylinder, wherein the gear is connected with the adjusting shaft and coaxially arranged, the rack is meshed with the gear, and the second air cylinder is connected with the rack; the receiving groove is vertical after the cylinder II performs a pushing stroke action, and is aligned to the outlet of the feeding pipe after the cylinder II performs a returning stroke action.

Preferably, the first rivet assembling station and the second rivet assembling station are both provided with a guide device; the guiding device comprises a guiding needle arranged below the rotary worktable and a lifting mechanism connected with the guiding needle, and a yielding hole for the guiding needle to pass through is formed in the rotary worktable. The design of the guiding device realizes the assembly positioning of the rivet, so that the rivet is assembled more smoothly, and the riveting success rate of the riveting machine is indirectly improved.

Preferably, the lifting mechanism comprises a lifting cylinder, an oil cylinder and a lifting screw rod.

Preferably, the pressing device comprises a pressing block and a pressing block driving mechanism connected with the pressing block.

Preferably, the upsetting mechanism comprises an upsetting head which can be close to and far from the rivet and an upsetting head driving structure connected with the upsetting head.

Preferably, the unloading station is provided with an unloading mechanism; the unloading mechanism comprises an adsorption device used for adsorbing and releasing the handle, a first lifting cylinder connected with the adsorption device, a first mounting frame used for mounting the first lifting cylinder, and a translation cylinder connected with the first mounting frame.

The working method of the automatic riveting machine for the chair tray connecting piece comprises the following steps:

step 1: after an assembly part formed by assembling the mounting part into the tray main body is clamped on a rotary workbench through a clamp, the rotary workbench rotates, a workpiece is sent to a first rivet assembling station, a manipulator on the first rivet assembling station grabs a rivet and assembles the rivet into one riveting hole of the tray main body, then the rotary workbench rotates, the workpiece is sent to a second rivet assembling station, and the manipulator on the second rivet assembling station grabs the rivet and assembles the rivet into the other riveting hole of the tray main body;

step 2: the rotary worktable rotates to convey a workpiece to a first riveting station, a pressing device on the first riveting station is pressed on the upper portion of one rivet, a upsetting mechanism is used for upsetting the lower end of the rivet to achieve riveting, then the rotary worktable rotates to convey the workpiece to a second riveting station, the pressing device on the second riveting station is pressed on the upper portion of the other rivet, and the upsetting mechanism is used for upsetting the lower end of the rivet to achieve riveting.

And step 3: the rotary worktable rotates to convey the workpiece to the unloading station.

In conclusion, the invention has the following beneficial effects:

1: according to the invention, after the mounting part is arranged in the tray main body at the clamping station, the assembly body of the mounting part and the tray main body is fixed on the rotary worktable by using the clamp, two rivets are automatically assembled at the first rivet assembling station and the second rivet assembling station, two pairs of rivets are automatically upset and riveted at the first riveting station and the second riveting station, and the finished product is manufactured;

2: according to the invention, the guiding devices are arranged at the first rivet assembling station and the second rivet assembling station, and during the rivet assembling process, the dynamic motion of the guiding needle is utilized to guide the rivet to smoothly complete the assembling, so that the riveting success rate of the riveting machine is indirectly improved;

3: the rivet is adjusted before the manipulator grabs the rivet, so that the rivet is in the most convenient grabbing state of the vertical direction, the grabbing by the manipulator is facilitated, the grabbing success rate of the manipulator is improved, and the working efficiency of the automatic riveting machine is indirectly improved;

4: the auxiliary fixing structure further improves the clamping effect, and prevents the problem of rivet assembly caused by the jump of the tray main body.

Drawings

FIG. 1 is a schematic view of an automatic riveter at a first viewing angle;

FIG. 2 is a schematic diagram of the automatic riveter at a second viewing angle;

FIG. 3 is a schematic view of the mounting of the robot arm to the robot arm;

FIG. 4 is a schematic diagram of the structure of the electromagnetic adsorption gripping mechanism;

FIG. 5 is a schematic diagram of a chair tray attachment of the prior art;

fig. 6 is an exploded schematic view of a chair tray attachment of the background art.

Detailed Description

The invention will be further explained by means of specific embodiments with reference to the drawings.

Example (b): as shown in fig. 1-2, an automatic riveting machine for a chair tray connecting piece includes a rotary table 1 provided with a plurality of clamps 11, where the number of the clamps 11 may be one or multiple, specifically, the clamps 11 include a bottom plate 111, a positioning plate 112 disposed on the bottom plate 111, and two positioning columns 113, where the two positioning columns 113 are respectively used for positioning in cooperation with two positioning holes 012 on a tray main body 01, the positioning plate 112 is used for positioning a side portion 013 of the tray main body 01, and a clamping station, a first rivet assembling station, a second rivet assembling station, a first riveting station, a second riveting station, and an unloading station are sequentially disposed in a rotation direction of the rotary table 1; on the clamping station, the riveting finished product can be manually unloaded, and automatic unloading of the riveting finished product can be realized by using tools such as a mechanical arm and the like; the first rivet assembling station and the second rivet assembling station are both provided with a manipulator 21, the manipulators 21 can be pneumatic clamping jaws, one manipulator 21 assembles a rivet into one riveting hole 011 on the tray main body 01, the other manipulator 21 assembles the rivet into the other riveting hole 011 on the tray main body 01, and the manipulators 21 are arranged at the positions so as to prevent the manipulators 21 from concentrating or bunching and reasonably plan the space of the riveting machine; the riveting station I and the riveting station II are respectively provided with a pressing device 4 which is positioned above the rotary worktable 1 and used for pressing the upper part of a rivet and a upsetting mechanism 5 which is positioned below the rotary worktable 1, in the embodiment, the pressing device 4 comprises a pressing block 41 and a pressing block driving mechanism 42 connected with the pressing block 41, the pressing block driving mechanism 42 can be an air cylinder but is not limited to the air cylinder, the pressing block 41 is used for acting on the upper part of the rivet 2, the upsetting mechanism 5 comprises an upsetting head 51 which can be close to and far away from the rivet and an upsetting head driving mechanism 52 connected with the upsetting head 51, the upsetting head driving mechanism 52 is a linear lifting structure, specifically can be a linear air cylinder, so that the upsetting head 51 realizes linear motion, when a workpiece reaches the riveting station I or the riveting station II, the pressing block driving mechanism 42 drives the pressing block 41 to move from top to bottom, and the pressing block 41 acts on the upper part of the rivet 2, the upset head driving structure 52 drives the upset head 51 to move from bottom to top and act on the lower end of the rivet 2, and further, in another embodiment, the upset head driving structure 52 is a rotary lifting structure, when upsetting the rivet 2, the upset head 51 rotates, enters the rivet hole 021 at the end of the rivet 2 and expands the rivet hole 021, so as to upset the rivet 2, therefore, in the whole riveting process, the riveting effect is good, the rotary lifting structure can adopt a common rotary lifting cylinder, and also can adopt a motor connected to the lifting cylinder, and the rotating shaft of the motor is connected with the upset head 51, which is not specifically described herein.

The automatic riveting machine comprises the following steps in work:

step 1: after the assembly part formed after the mounting part 02 is assembled in the tray main body 01 is clamped on the rotary workbench 1 through the clamp 11, the rotary workbench 1 rotates to send a workpiece to a first rivet assembling station, a manipulator 21 on the first rivet assembling station grabs a rivet and assembles the rivet into one riveting hole 011 of the tray main body 01, then the rotary workbench 1 rotates to send the workpiece to a second rivet assembling station, and the manipulator 21 on the second rivet assembling station grabs the rivet and assembles the rivet into the other riveting hole 011 of the tray main body 01;

step 2: the rotary working table 1 rotates to convey a workpiece to the first riveting station, the pressing device 4 on the first riveting station is pressed on the upper portion of one rivet, the upsetting mechanism 5 is used for upsetting the lower end of the rivet to achieve riveting, then the rotary working table 1 rotates to convey the workpiece to the second riveting station, the pressing device 4 on the second riveting station is pressed on the upper portion of the other rivet, and the upsetting mechanism 5 is used for upsetting the lower end of the rivet to achieve riveting.

And step 3: the rotary worktable 1 rotates to convey the workpiece to the unloading station.

According to the automatic riveting machine, after the mounting piece 02 is arranged in the tray main body 01 at the clamping station, the assembly of the mounting piece 02 and the tray main body is fixed on the rotary worktable 1 through the clamp 11, two rivets are automatically assembled at the first rivet assembling station and the second rivet assembling station, two pairs of two rivets at the first rivet assembling station and the second rivet assembling station are automatically upset and riveted at the same time, finished product manufacturing is completed, and a finished product is dismounted at the discharging station.

In the present embodiment, the first rivet assembling station and the second rivet assembling station are both provided with a mechanical arm 22, as shown in fig. 3, the mechanical arm 22 is connected to the mechanical arm 21 and controls the movement of the mechanical arm 21, wherein the mechanical arm 22 includes a horizontal rail 221, a horizontal sliding table 222 disposed on the horizontal rail 221, a vertical rail 223 disposed on the horizontal sliding table 222, and a vertical slider 224 disposed on the vertical rail 223, the mechanical arm 21 is connected to the vertical slider 224, the horizontal sliding table 222 can horizontally slide through a cylinder, the vertical slider 224 can vertically slide through a cylinder, after the mechanical arm 21 grasps a rivet, the horizontal sliding table 222 carries the mechanical arm 21 right above the riveting hole 011, then the vertical slider 224 moves, the mechanical arm 21 feeds the rivet into the riveting hole 011, then the mechanical arm 21 releases the rivet and resets under the control of the vertical slider 224 and the horizontal sliding table 222, waiting for the next time to pick the rivet.

In this embodiment, as shown in fig. 1-2, the automatic riveting machine further includes an auxiliary fixing structure 3 for pressing the upper surface of the tray main body 01, where the auxiliary fixing structure 3 includes a mounting table 31, a hinge frame 32 disposed on the mounting table 31, a pressing plate 33 rotatably mounted on the hinge frame 32, and a first cylinder 34 for controlling the pressing plate 33 to move, one end of the pressing plate 33 is a pressing end, the other end of the pressing plate 33 is connected to the first cylinder 34, a hinge point where the pressing plate 33 is connected to the hinge frame 32 is located between the pressing end and the first cylinder 34, a through mounting hole 12 is formed in the center of the rotary table 1, the lower portion of the mounting table 31 is located in the mounting hole 12, and the upper portion of the mounting table 31 is located above the rotary table (1). In this embodiment, the first rivet assembling station and the second rivet assembling station are respectively and correspondingly provided with a hinge frame 32, a pressing plate 33 and a first cylinder 34, the pressing plate 33 corresponding to the first rivet assembling station is used for pressing the upper surface of the tray main body 01 on the first rivet assembling station, and the pressing plate 33 corresponding to the second rivet assembling station is used for pressing the upper surface of the tray main body 01 on the second rivet assembling station. When the workpiece moves to the first rivet assembling station or the second rivet assembling station, the pressing plate 33 is pressed on the upper surface of the tray main body 01 under the action of the first air cylinder 34, the clamping effect is further improved, and the problem of rivet assembling caused by jumping of the tray main body 01 is prevented.

Because the chair tray connecting piece has a certain thickness, the corresponding rivet is longer, the diameter length of the rivet is smaller, namely the ratio of the diameter to the length is smaller, after the rivet reaches the position of the manipulator 21 under the conveying of common conveying mechanisms such as a conveying belt, the rivet is difficult to keep the most vertical state which is convenient to grab, preferably, the rivet assembling station I and the rivet assembling station II are both provided with a feeding pipe 23 and a rivet adjusting mechanism 24; the rivet adjusting mechanism 24 comprises an adjusting shaft 241, a gear 242 which is connected with the adjusting shaft 241 and is coaxially arranged, a rack 243 meshed with the gear 242, and a second air cylinder 244 connected with the rack 243, the adjusting shaft 241 is provided with a receiving groove 2411 on the outer circumferential surface thereof, the receiving groove 2411 is used for receiving the rivet sent from the outlet of the feeding pipe 23, after the receiving groove 2411 receives the rivet, the rivet part is exposed to the receiving groove 2411, meanwhile, the second cylinder 244 performs a pushing stroke, the receiving groove 2411 is vertically arranged after the second cylinder 244 performs the pushing stroke, the rivet in the receiving groove 2411 is also vertically arranged, at this time, the manipulator 21 grasps the part of the rivet exposed out of the receiving groove 2411, takes out the rivet from the receiving groove 2411, then, the second cylinder 244 performs a return stroke, and the receiving groove 2411 aligns with the outlet of the feeding pipe 23 after the second cylinder 244 performs the return stroke, and then receives the next rivet. This setting is adjusted the rivet before manipulator 21 snatchs the rivet for the rivet is vertical this state of conveniently snatching most, makes things convenient for snatching of manipulator, improves the success rate of snatching of manipulator, indirectly promotes automatic riveter's work efficiency.

Preferably, the first rivet assembling station and the second rivet assembling station are both provided with a guide device 6; the guiding device 6 comprises a guiding pin 61 arranged below the rotary worktable 1 and a lifting mechanism 62 connected with the guiding pin 61, the rotary worktable 1 is provided with a abdicating hole 12 for the guiding pin 61 to pass through, the lifting mechanism 62 can be a cylinder but is not limited to a cylinder, for example, an oil cylinder, a lifting screw rod and the like can also be adopted, after the manipulator 21 carries the rivet right above the riveting hole 011, the lifting mechanism 62 drives the guiding pin 61 to ascend, the guiding pin 61 passes through the abdicating hole 12 and the riveting hole 011 on the tray main body 01, so that the riveting hole 011 and the abdicating hole 12 are collinear and aligned with the rivet, the rivet can smoothly penetrate from the upper inlet of the riveting hole 011, then the manipulator 21 starts to carry out riveting downwards, the manipulator 21 synchronously descends the guiding pin 61 during riveting, and when the guiding pin 61 exits the riveting hole 011 downwards, the manipulator 21 can make the rivet pass the export of riveting hole 011 in step, and guide needle 61 is at the in-process that descends, remains the collineation relation between hole 12, the riveting hole 011 both of stepping down all the time, effectively ensures that the rivet can pass lower riveting hole 011, from this it can be seen, the design of guiding device 6, in the rivet assembly process, utilizes the dynamic motion of guide needle 61, and the assembly is accomplished smoothly to the guide rivet, has promoted the riveting success rate of riveter, has indirectly promoted the work efficiency of riveter.

The unloading station is provided with an unloading mechanism 7, as shown in fig. 4, the unloading mechanism 7 includes an adsorption device 71 for adsorbing and releasing the handle, a first lifting cylinder 72 connected to the adsorption device 71, a first mounting bracket 73 for mounting the first lifting cylinder 72, and a translation cylinder 74 connected to the first mounting bracket 73, in this embodiment, the adsorption device 71 may be an electromagnetic adsorption device including an electromagnet and an electrified coil wound on the electromagnet, which is not specifically described herein, and in an initial state, the adsorption device 71 is located right above the workpiece, after the workpiece is sent to the unloading station, the first lifting cylinder 72 descends, the adsorption device 71 acts to adsorb the workpiece, the first lifting cylinder 72 ascends, then the translation cylinder 74 moves to drive the first mounting bracket 73, the first lifting cylinder 72 and the workpiece to move laterally, so that the workpiece is far away from the rotary table 1, the suction device 71 is actuated to release the workpiece, and then the translation cylinder 74 is reset to complete one discharge motion, in another embodiment, the suction device 71 may also be a vacuum suction device including a vacuum suction head and a vacuum pump connected to the vacuum suction head through a connecting air pipe. This shedding mechanism 7 can accomplish the unloading automatically, reduces the input of cost of labor.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.