High-precision rivet spot welding equipment for intelligent manufacturing

Abstract

The invention discloses high-precision rivet spot welding equipment for intelligent manufacturing, and relates to the technical field of rivet spot welding equipment, the high-precision rivet spot welding equipment for intelligent manufacturing comprises a workbench, a feeding mechanism is mounted on the workbench, the feeding mechanism is used for intermittently feeding workpieces, a fixing frame is fixed on the workbench, a spot welding mechanism is mounted on the fixing frame, and the spot welding mechanism is used for intermittently welding the workpieces. A vibration feeding disc is further fixed to the workbench and used for automatic feeding of rivet bodies, and the vibration feeding disc is connected with the conveying mechanism through a material guiding frame to achieve conveying of the rivet bodies. According to the high-precision rivet spot welding equipment for intelligent manufacturing, a servo motor is adopted by a feeding mechanism to drive a rotating disc, intermittent feeding is achieved by rotating the rotating disc by 90 degrees each time, a limiting ring is matched to effectively prevent workpieces from being thrown out due to centrifugal force, a supporting plate on the rotating disc is located through a torsional spring and a protruding plate, the workpieces can be stably supported, and meanwhile a protruding shaft at the lower end of the supporting plate is matched with a first inclined panel; and a foundation is laid for subsequent automatic discharging, and the problems of feeding deviation, material clamping and the like of traditional equipment are effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to rivet spot welding equipment technical field, specifically to a high-precision rivet spot welding equipment for intelligent manufacturing. BACKGROUND

[0002] In the field of intelligent manufacturing, rivet spot welding, as a key process for connecting workpieces, is widely used in production scenes such as automobile parts, household appliance shells, hardware accessories, etc. The current rivet spot welding equipment in the industry still has the following problems in actual application: The spot welding electrodes, rivet conveying mechanisms, and workpiece positioning mechanisms of traditional equipment are mostly controlled independently, and there is a delay in action connection (such as the rivet not being in place when the electrode is pressed down); the welding pressure control relies on direct driving by a pneumatic cylinder, which is easy to cause workpiece deformation due to excessive pressure or virtual welding due to insufficient pressure; at the same time, there is a lack of real-time detection of the welding state (such as whether the electrode contacts the workpiece and whether the rivet is adsorbed in place), which makes it difficult to guarantee welding consistency; after welding is completed, the workpiece often needs to be manually assisted to separate due to being tightly clamped with the feeding tray, which not only increases labor costs but also easily scratches the surface of the workpiece due to improper operation; although some equipment is provided with a discharging structure, the discharging trigger timing does not match the workpiece welding rhythm, which easily causes problems such as not welding before discharging or remaining after welding, affecting the continuity of the production line. SUMMARY

[0003] The purpose of the present application is to provide a high-precision rivet spot welding equipment for intelligent manufacturing to solve the problems raised in the background.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a high-precision rivet spot welding equipment for intelligent manufacturing, comprising a workbench, a feeding mechanism is installed on the workbench, and the feeding mechanism is used for intermittent feeding of workpieces; a fixed frame is fixed on the workbench, a spot welding mechanism is installed on the fixed frame; a vibrating feeding tray is also fixed on the workbench for automatic feeding of rivet bodies; the vibrating feeding tray is connected to a conveying mechanism through a guide frame to realize the conveying of rivet bodies; the conveying mechanism is used for intermittent automatic feeding of rivet bodies; the conveying mechanism is connected to a positioning mechanism installed on the workbench, and the positioning mechanism is used for positioning of workpieces to ensure the accuracy of rivet body welding.

[0005] Preferably, an electric control box is fixedly installed on the lower side of the workbench, a discharging port is provided on the workbench, and a collection box is provided below the discharging port; through the above structure, the workpieces welded with rivet bodies can be collected for subsequent processing.

[0006] Preferably, the feeding mechanism comprises a servo motor fixed on the workbench, and the output end of the servo motor is fixed with a rotating disc, wherein the rotating disc rotates 90 degrees each time, and a limiting ring is arranged outside the rotating disc, and the limiting ring is fixed with the workbench through a supporting rod; the intermittent rotation of the rotating disc driven by the servo motor can provide basic guarantee for the intermittent feeding of the workpiece, thereby providing guarantee for the normal processing, and the limiting ring can limit the workpiece from swinging out due to the centrifugal force of the rotating disc.

[0007] Preferably, a rotatable supporting plate is connected in the groove of the rotating disc, a torsion spring is connected between the supporting plate and the rotating disc, the supporting plate is in contact with the workpiece for supporting, and the supporting plate is in contact with a convex plate fixed on the rotating disc for positioning; a convex shaft is fixed to the lower end of the side of the supporting plate close to the convex plate, the convex shaft is in sliding connection with a first inclined plate fixed on the workbench, and the first inclined plate is located at the side of the discharging port; the supporting plate can lift the workpiece to ensure the normal subsequent processing of the workpiece, the convex plate can limit the supporting plate to rotate in one direction, and the sliding action between the convex shaft and the first inclined plate can provide a basic force for the rotation of the supporting plate, thereby providing basic guarantee for the automatic discharging of the workpiece.

[0008] Preferably, the spot welding mechanism comprises a cylinder fixed on the fixing frame, the output end of the cylinder is fixed with a fixed plate, a mounting plate is arranged below the fixed plate, a spot welding electrode is fixed to the lower end surface of the mounting plate, a gas guide channel connected with a vacuum pump is arranged at the center position of the spot welding electrode, and the vacuum pump is fixed on the mounting plate; the spot welding electrode can realize the welding of the workpiece and the rivet body, and the vacuum pump can realize the initial adsorption and fixation of the rivet body, thereby ensuring the normal processing.

[0009] Preferably, a contact sensor is further fixed on the mounting plate and has a height higher than that of the vacuum pump, and left and right symmetrical slide rods are fixed on the mounting plate and in sliding connection with the fixed plate, and a first spring is fixed between the fixed plate and the mounting plate; the contact sensor can transmit signals for the work of the spot welding electrode, thereby ensuring the processing, and the elasticity of the first spring can provide a basic force for the automatic resetting of the mounting plate.

[0010] Preferably, the conveying mechanism comprises a fixed box fixed on the workbench, a guide cylinder connected with the guide frame is fixed on the fixed box, and a movable frame is slidably connected with the guide cylinder, the movable frame is connected with a moving plate arranged in the fixed box, the front end of the moving plate is symmetrically connected with a rotatable limiting plate, a torsional spring is further connected between the limiting plate and the moving plate, a groove for positioning the rivet body is formed in the limiting plate, the intermittent automatic conveying of the rivet body is ensured by the above structure, and the downward movement of the limiting plate and the spot welding electrode is avoided by the rotating action of the limiting plate, so that the normal processing is ensured.

[0011] Preferably, the second spring is fixed between the movable frame and the fixed box, a round rod is fixed on the left side of the movable frame, and the round rod is slidably connected with the second inclined plate, the second inclined plate is fixed with the fixed plate through the connecting rod, and the sliding action between the round rod and the second inclined plate can provide basic force for the movement of the moving plate and the limiting plate, so that the automatic feeding of the rivet body is realized.

[0012] Preferably, the positioning mechanism comprises a support fixed on the workbench, a movable sleeve is slidably connected with the support, a third spring is fixed between the movable sleeve and the support, a top rod is fixed on the lower end of the movable sleeve, the top rod is slidably connected with a third inclined plate, and the third inclined plate is fixed with the movable frame, the sliding action between the top rod and the third inclined plate can provide basic guarantee for the movement of the movable sleeve, so that the positioning of the workpiece is ensured.

[0013] Preferably, the positioning mechanism comprises a support fixed on the workbench, a movable sleeve is slidably connected with the support, a third spring is fixed between the movable sleeve and the support, a top rod is fixed on the lower end of the movable sleeve, the top rod is slidably connected with a third inclined plate, and the third inclined plate is fixed with the movable frame, the sliding action between the top rod and the third inclined plate can provide basic guarantee for the movement of the movable sleeve, so that the positioning of the workpiece is ensured.

[0014] Compared with the prior art, the present application has the following advantages: 1. The high-precision rivet spot welding equipment for intelligent manufacturing, the feeding mechanism adopts a servo motor driven turntable, intermittent feeding is realized by rotating 90° each time, the limiting ring can effectively prevent the workpiece from being thrown out due to centrifugal force, the supporting plate on the turntable is positioned by the torsional spring and the convex plate, the workpiece can be stably supported, the convex shaft at the lower end of the supporting plate cooperates with the first inclined plate to lay a foundation for subsequent automatic feeding, effectively solving the problems of feeding deviation and material jamming of traditional equipment, when the positioning pin is reset after welding, an upward force is generated on the workpiece, the workpiece is loosened in the groove of the turntable, when the turntable drives the workpiece to rotate to the discharge port, the convex shaft at the lower end of the supporting plate is slidably connected with the first inclined plate, the supporting plate is driven to be inclined, and the workpiece falls into the collecting box through the discharge port under the action of its own gravity, so that the automatic material collecting function is realized, manual assistance is not needed, and the work efficiency is effectively improved. 2. The high-precision rivet spot welding equipment for intelligent manufacturing, the positioning mechanism is connected with the third inclined panel through the movable sleeve and the positioning pin, the positioning pin can penetrate the workpiece round hole to realize the secondary accurate positioning of the workpiece before welding, the fourth spring between the positioning pin and the movable sleeve can buffer the pressure to avoid damaging the workpiece, ensure that the rivet is completely aligned with the workpiece round hole, and significantly reduce the misplacement waste rate; 3. The high-precision rivet spot welding equipment for intelligent manufacturing, the movable frame of the conveying mechanism is connected with the fixed plate fixed to the spot welding mechanism through the round rod and the second inclined panel, the limit plate can drive the rivet to push to the welding station when the spot welding mechanism is pressed down, and the moving plate can limit the next rivet after pushing to the position to avoid falling in advance, the whole process does not need independent driving element, realizes the seamless connection of spot welding preparation and rivet conveying, effectively avoids the risk of empty welding and missed welding; 4. The high-precision rivet spot welding equipment for intelligent manufacturing, the center of the spot welding electrode is provided with a gas guide channel connected with the vacuum pump, which can adsorb the rivet before welding to avoid displacement, the first spring between the fixed plate and the mounting plate can realize flexible adjustment of welding pressure, which can ensure close contact between the rivet and the workpiece to avoid false welding, and prevent workpiece deformation caused by excessive pressure, at the same time, the contact sensor can detect the position of the fixed plate in real time to ensure the normal welding. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the whole structure of the device; Figure 2 It is a bottom view of the feeding mechanism; Figure 3 It is a bottom view of the feeding mechanism; Figure 4 It is a front view of the spot welding machine; Figure 5 It is a front view of the spot welding machine; Figure 6 It is a front view of the conveying mechanism; Figure 7 It is a front view of the limit plate; Figure 8 It is a front view of the positioning mechanism;

[0016] As shown in the figure: 1, workbench; 101, electric control box; 102, discharging port; 103, collection box; 2, feeding mechanism; 201, servo motor; 202, turntable; 203, limiting ring; 204, supporting rod; 205, supporting plate; 206, convex plate; 207, convex shaft; 208, first inclined plate; 3, workpiece; 4, fixing frame; 5, spot welding mechanism; 501, air cylinder; 502, fixed plate; 503, mounting plate; 504, spot welding electrode; 505, vacuum pump; 506, contact sensor; 507, sliding rod; 508, first spring; 6, conveying mechanism; 601, fixed box; 602, material guiding cylinder; 603, movable frame; 604, moving plate; 605, limiting plate; 606, second spring; 607, round rod; 608, second inclined plate; 609, connecting rod; 7, vibrating feeding disc; 8, material guiding frame; 9, rivet body; 10, positioning mechanism; 1001, support; 1002, movable sleeve; 1003, third spring; 1004, ejector rod; 1005, third inclined plate; 1006, positioning peg; 1007, fourth spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-8 The present application provides a technical solution: a high-precision rivet spot welding device for intelligent manufacturing, which comprises a workbench 1, wherein the workbench 1 is provided with a feeding mechanism 2 installed thereon, and the feeding mechanism 2 is used for intermittent feeding of a workpiece 3; the workbench 1 is further provided with a fixing frame 4 fixed thereon, and the fixing frame 4 is provided with a spot welding mechanism 5 installed thereon; the workbench 1 is also provided with a vibrating feeding disc 7 for automatic feeding of a rivet body 9; the vibrating feeding disc 7 is connected with a conveying mechanism 6 through a material guiding frame 8 to realize conveying of the rivet body 9, and the conveying mechanism 6 is used for intermittent automatic feeding of the rivet body 9; the conveying mechanism 6 is connected with a positioning mechanism 10 installed on the workbench 1, and the positioning mechanism 10 is used for positioning of the workpiece 3 to ensure the accuracy of rivet body 9 welding.

[0019] The workbench 1 is fixedly installed with an electric control box 101, and a discharging port 102 is arranged on the workbench 1, and a collecting box 103 is arranged below the discharging port 102; the feeding mechanism 2 comprises a servo motor 201 fixed on the workbench 1, and a rotating disc 202 is fixed to the output end of the servo motor 201, wherein the rotating disc 202 rotates 90° each time, and a limiting ring 203 is arranged on the outer side of the rotating disc 202, and the limiting ring 203 is fixed to the workbench 1 through a supporting rod 204; a rotatable supporting plate 205 is connected in the groove of the rotating disc 202, and a torsion spring is connected between the supporting plate 205 and the rotating disc 202, and the supporting plate 205 is in contact with the workpiece 3 for supporting, and the supporting plate 205 is in contact with a convex plate 206 fixed on the rotating disc 202 to realize positioning, and a convex shaft 207 is fixed to the lower end of the side of the supporting plate 205 close to the convex plate 206, and the convex shaft 207 is in sliding connection with a first inclined plate 208 fixed on the workbench 1, and the first inclined plate 208 is located at the side of the discharging port 102; When the high-precision rivet spot welding equipment for intelligent manufacturing is used, as shown in the figure, Figures 1-8 firstly, the workpiece 3 to be processed is nested and installed in the groove of the rotating disc 202 by manual operation, and the lower end surface of the workpiece 3 is in contact with the supporting plate 205 to realize this, at this time, the workpiece 3 is supported by the supporting plate 205, after the workpiece 3 is placed, the rotating disc 202 is driven by the servo motor 201 to rotate intermittently, and rotates 90° each time, in the rotating process, the limiting action of the limiting ring 203 can avoid the workpiece 3 from being thrown out due to the centrifugal force in the rotating process, so as to ensure the normal feeding of the workpiece 3; The conveying mechanism 6 comprises a fixed box 601 fixed on the workbench 1, and a guide cylinder 602 is fixed on the fixed box 601 and connected with the guide frame 8, and a movable frame 603 is in sliding connection with the guide cylinder 602, and the movable frame 603 is connected with a moving plate 604 arranged in the fixed box 601, the moving plate 604 is symmetrically connected with a rotatable limiting plate 605 at the front end, and the limiting plate 605 and the moving plate 604 are further connected with a torsion spring, and the limiting plate 605 is provided with a groove for positioning the rivet body 9; a second spring 606 is fixed between the movable frame 603 and the fixed box 601, a round rod 607 is fixed to the left side of the movable frame 603, and the round rod 607 is in sliding connection with a second inclined plate 608, and the second inclined plate 608 is fixed to the fixed plate 502 through a connecting rod 609; In the workpiece 3 feeding process, the vibration feeding disc 7 can realize the conveying of the rivet body 9, and the guide frame 8 can guide the rivet body 9 into the guide cylinder 602, and the guide cylinder 602 can guide the rivet body 9 to cooperate with the groove in the limiting plate 605, so as to realize the positioning of the rivet body 9, and realize the automatic feeding of the rivet body 9; The spot welding mechanism 5 comprises a cylinder 501 fixed on the fixed frame 4, and the output end of the cylinder 501 is fixed with a fixed plate 502, and a mounting plate 503 is arranged directly below the fixed plate 502, and the lower end surface of the mounting plate 503 is fixed with a spot welding electrode 504, a gas guide channel connected with a vacuum pump 505 is arranged at the center position of the spot welding electrode 504, and the vacuum pump 505 is fixed on the mounting plate 503; a contact sensor 506 is also fixed on the mounting plate 503, and the height of the contact sensor 506 is higher than the height of the vacuum pump 505, and the mounting plate 503 is also fixed with slide rods 507 which are symmetrically arranged left and right, and the slide rods 507 are in sliding connection with the fixed plate 502, and the fixed plate 502 is fixed with a first spring 508 between the mounting plate 503; When the round hole on the workpiece 3 rotates to the position directly above the positioning nail 1006, welding is carried out at this time, and the fixed plate 502, the mounting plate 503 and the spot welding electrode 504 can be driven to move downward by the extension of the cylinder 501, when the fixed plate 502 moves downward, the connecting rod 609 and the second inclined plate 608 are simultaneously driven to move downward, and the sliding action between the inclined surface of the second inclined plate 608 and the round rod 607 makes the movable frame 603 move forward under stress, thereby driving the moving plate 604 and the limiting plate 605 to move forward, so that the limiting plate 605 drives the rivet body 9 in the groove in the nested limiting plate 605 to move forward, at this time, the second spring 606 is contracted under stress, and the rivet body 9 moves out of the fixed box 601, when the plane of the second inclined plate 608 contacts and slides with the round rod 607, at this time, the rivet body 9 is just moved to the position directly above the positioning nail 1006 on the workpiece 3, so as to facilitate subsequent riveting, and at this time, the lower end surface height of the spot welding electrode 504 is higher than the upper end surface height of the rivet body 9 on the limiting plate 605, and at this time, the moving plate 604 limits the next rivet body 9 in the material guiding cylinder 602, so as to avoid the next rivet body 9 from falling; The positioning mechanism 10 comprises a support 1001 fixed on the workbench 1, and the support 1001 is in sliding connection with a movable sleeve 1002, and the movable sleeve 1002 is fixed with a third spring 1003 between the support 1001, and the movable sleeve 1002 is fixed with a top rod 1004 at the lower end, the top rod 1004 is in sliding connection with a third inclined plate 1005, and the third inclined plate 1005 is in fixed connection with the movable frame 603; the movable sleeve 1002 is in sliding connection with a positioning nail 1006, and the positioning nail 1006 is arranged directly below the spot welding electrode 504, and the positioning nail 1006 is fixed with a fourth spring 1007 between the movable sleeve 1002; When the movable frame 603 is forced to move forward, the third inclined plane plate 1005 is driven to move forward, and the sliding action between the inclined surface of the third inclined plane plate 1005 and the top rod 1004 makes the movable sleeve 1002 slide upward relative to the support 1001. At this time, the third spring 1003 is contracted under the action of force, thereby driving the positioning nail 1006 to move upward. When the plane of the second inclined plane plate 608 contacts and slides with the circular rod 607, the plane of the third inclined plane plate 1005 contacts and slides with the top rod 1004 at this time. At this time, the positioning nail 1006 penetrates the upper circular hole of the workpiece 3, achieving auxiliary positioning of the workpiece 3, ensuring the accuracy of subsequent welding, and at this time, the upper end surface of the movable sleeve 1002 contacts the supporting plate 205 to achieve the supporting effect of the supporting plate 205; When the rivet body 9 moves to the position directly above the positioning nail 1006, the positioning nail 1006 penetrates the upper circular hole of the workpiece 3 to achieve auxiliary positioning, and at this time, the continuous extension of the air cylinder 501 can drive the fixed plate 502, the mounting plate 503 and the spot welding electrode 504 to continue to move downward. When the spot welding electrode 504 is nested with the head of the rivet body 9, at this time, the vacuum pump 505 and the gas guide channel in the spot welding electrode 504 can achieve the adsorption and fixation of the rivet body 9 on the limiting plate 605, and at this time, the spot welding electrode 504 contacts the limiting plate 605. When the spot welding electrode 504 continues to move downward, the limiting plate 605 is forced to rotate at this time, thereby avoiding the limiting plate 605 hindering the normal downward movement of the spot welding electrode 504. Until the spot welding electrode 504 contacts the positioning nail 1006, the rivet body 9 can accurately penetrate the upper circular hole of the workpiece 3 to be positioned. At this time, the rivet body 9 is in contact with the workpiece 3, and the position of the spot welding electrode 504 is limited. The continuous extension of the air cylinder 501 can drive the fixed plate 502 to move downward relative to the mounting plate 503. At this time, the first spring 508 is contracted under the action of force, and the head of the rivet body 9 and the spot welding electrode 504 are in close contact with the workpiece 3 through the elastic action of the first spring 508. At this time, the supporting plate 205 is supported by the movable sleeve 1002, which can avoid the overturning of the supporting plate 205 and the workpiece 3. Until the fixed plate 502 contacts the contact sensor 506, the spot welding electrode 504 works to achieve the welding effect of the workpiece 3 and the rivet body 9; After the welding is completed, the fixed plate 502, the mounting plate 503 and the spot welding electrode 504 can be driven to move upward and reset by the contraction of the air cylinder 501. When the spot welding electrode 504 is separated from the workpiece 3, the positioning peg 1006 can generate an upward force on the rivet body 9 and the workpiece 3 when it moves upward and resets under the action of the third spring 1003, so that the workpiece 3 is in an inclined state, thereby loosening the workpiece 3 and the groove on the turntable 202, and the workpiece 3 and the groove on the turntable 202 are engaged to affect the subsequent normal unloading. When the spot welding electrode 504 moves upward and separates from the limiting plate 605, the limiting plate 605 automatically recovers to a horizontal state under the action of the torsional spring at this time, so as to convey the next rivet body 9. In the process of moving the fixed plate 502 upward, the second inclined plate 608 is driven to move upward synchronously, and the sliding action between the second inclined plate 608 and the round rod 607 and the elastic action of the second spring 606 can reset the movable frame 603, the moving plate 604 and the limiting plate 605. After the reset is completed, the groove on the limiting plate 605 is nested with the next rivet body 9 at this time, so as to feed the next rivet body 9. When the movable frame 603 resets, the third inclined plate 1005 is driven to reset synchronously, and the sliding action between the third inclined plate 1005 and the jacking rod 1004 and the elastic action of the third spring 1003 can make the movable sleeve 1002 move downward and reset. At this time, the positioning peg 1006 is separated from the rivet body 9, and the workpiece 3 recovers to a horizontal state under the action of its own gravity. After the air cylinder 501 is contracted and reset is completed, the servo motor 201 drives the turntable 202 and the processed workpiece 3 and rivet body 9 to rotate. When the convex shaft 207 at the lower end surface of the supporting plate 205 rotates to contact and slide with the first inclined plate 208, the supporting plate 205 rotates to an inclined state at this time, and the processed workpiece 3 and rivet body 9 can be unloaded by the action of their own gravity. At this time, the processed workpiece 3 and rivet body 9 fall into the collecting box 103 through the discharge port 102 to be collected for subsequent processing.

[0020] It should be noted that in this text, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0021] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be noted that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A high-precision rivet spot welding device for intelligent manufacturing, comprising a workbench (1), characterized in that: The workbench (1) is provided with a feeding mechanism (2) for intermittently feeding workpieces (3), a fixed frame (4) is fixed on the workbench (1), a spot welding mechanism (5) is installed on the fixed frame (4), a vibrating feeding tray (7) is also fixed on the workbench (1) for automatically feeding rivet bodies (9), the vibrating feeding tray (7) is connected with a conveying mechanism (6) through a guide frame (8) to convey the rivet bodies (9), the conveying mechanism (6) is used for intermittently automatically feeding the rivet bodies (9), the conveying mechanism (6) is connected with a positioning mechanism (10) installed on the workbench (1), and the positioning mechanism (10) is used for positioning the workpieces (3) to ensure the accuracy of rivet body (9) welding.

2. A high-precision rivet spot welding device for intelligent manufacturing according to claim 1, characterized in that: The workbench (1) is provided with a feeding mechanism (2) for intermittently feeding workpieces (3), a fixed frame (4) is fixed on the workbench (1), a spot welding mechanism (5) is installed on the fixed frame (4), a vibrating feeding tray (7) is also fixed on the workbench (1) for automatically feeding rivet bodies (9), the vibrating feeding tray (7) is connected with a conveying mechanism (6) through a guide frame (8) to convey the rivet bodies (9), the conveying mechanism (6) is used for intermittently automatically feeding the rivet bodies (9), the conveying mechanism (6) is connected with a positioning mechanism (10) installed on the workbench (1), and the positioning mechanism (10) is used for positioning the workpieces (3) to ensure the accuracy of rivet body (9) welding.

3. A high-precision rivet spot welding device for intelligent manufacturing according to claim 2, characterized in that: The workbench (1) is provided with a feeding mechanism (2) for intermittently feeding workpieces (3), a fixed frame (4) is fixed on the workbench (1), a spot welding mechanism (5) is installed on the fixed frame (4), a vibrating feeding tray (7) is also fixed on the workbench (1) for automatically feeding rivet bodies (9), the vibrating feeding tray (7) is connected with a conveying mechanism (6) through a guide frame (8) to convey the rivet bodies (9), the conveying mechanism (6) is used for intermittently automatically feeding the rivet bodies (9), the conveying mechanism (6) is connected with a positioning mechanism (10) installed on the workbench (1), and the positioning mechanism (10) is used for positioning the workpieces (3) to ensure the accuracy of rivet body (9) welding.

4. A high-precision rivet spot welding device for intelligent manufacturing according to claim 3, characterized in that: The workbench (1) is provided with a feeding mechanism (2) for intermittently feeding workpieces (3), a fixed frame (4) is fixed on the workbench (1), a spot welding mechanism (5) is installed on the fixed frame (4), a vibrating feeding tray (7) is also fixed on the workbench (1) for automatically feeding rivet bodies (9), the vibrating feeding tray (7) is connected with a conveying mechanism (6) through a guide frame (8) to convey the rivet bodies (9), the conveying mechanism (6) is used for intermittently automatically feeding the rivet bodies (9), the conveying mechanism (6) is connected with a positioning mechanism (10) installed on the workbench (1), and the positioning mechanism (10) is used for positioning the workpieces (3) to ensure the accuracy of rivet body (9) welding.

5. A high precision rivet spot welding apparatus for intelligent manufacturing as claimed in claim 4 wherein: The workbench (1) is provided with a feeding mechanism (2) for intermittently feeding workpieces (3), a fixed frame (4) is fixed on the workbench (1), a spot welding mechanism (5) is installed on the fixed frame (4), a vibrating feeding tray (7) is also fixed on the workbench (1) for automatically feeding rivet bodies (9), the vibrating feeding tray (7) is connected with a conveying mechanism (6) through a guide frame (8) to convey the rivet bodies (9), the conveying mechanism (6) is used for intermittently automatically feeding the rivet bodies (9), the conveying mechanism (6) is connected with a positioning mechanism (10) installed on the workbench (1), and the positioning mechanism (10) is used for positioning the workpieces (3) to ensure the accuracy of rivet body (9) welding.

6. A high-precision rivet spot welding device for intelligent manufacturing according to claim 5, characterized in that: ​ 7. A high precision rivet spot welding apparatus for intelligent manufacturing as claimed in claim 6 wherein: The conveying mechanism (6) includes a fixed box (601) fixed on the workbench (1), and a guide cylinder (602) is fixed on the fixed box (601) and connected with the guide frame (8), and a movable frame (603) is slidably connected on the guide cylinder (602), and the movable frame (603) is connected with a moving plate (604) arranged in the fixed box (601), the moving plate (604) is symmetrically connected with a rotatable limiting plate (605) at the front end, a torsion spring is further connected between the limiting plate (605) and the moving plate (604), and a recess for positioning the rivet body (9) is formed in the limiting plate (605).

8. A high precision rivet spot welding apparatus for intelligent manufacturing as claimed in claim 7, wherein: The movable frame (603) is fixed with a second spring (606) between the movable frame (603) and the fixed box (601), a round rod (607) is fixed on the left side of the movable frame (603), and the round rod (607) is slidably connected with a second inclined plate (608), and the second inclined plate (608) is fixed with the fixed plate (502) through a connecting rod (609).

9. A high precision rivet spot welding apparatus for intelligent manufacturing as claimed in claim 8, wherein: The positioning mechanism (10) includes a support (1001) fixed on the workbench (1), and a movable sleeve (1002) is slidably connected on the support (1001), and a third spring (1003) is fixed between the movable sleeve (1002) and the support (1001), and a top rod (1004) is fixed on the lower end of the movable sleeve (1002), the top rod (1004) is slidably connected with a third inclined plate (1005), and the third inclined plate (1005) is fixedly connected with the movable frame (603).

10. A high precision rivet spot welding apparatus for intelligent manufacturing as claimed in claim 9, wherein: The movable sleeve (1002) is slidably connected with a positioning pin (1006), the positioning pin (1006) is arranged directly below the spot welding electrode (504), and a fourth spring (1007) is fixed between the positioning pin (1006) and the movable sleeve (1002).

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