A feeding device for fastener production

Abstract

This invention belongs to the field of fastener manufacturing technology and discloses a feeding device for fastener production. It includes a base, with frames mounted on both the front and rear sides of the base's top. A lever is provided between the two frames, and a mounting shaft is fixedly sleeved in the middle of the lever. The lever is movably connected to the two frames via the mounting shaft, and the lever rotates relative to the frames via the mounting shaft. This invention, by setting a rotatable lever and engaging it with a limiting post and an arc-shaped limiting groove, controls the rotation of the lever to raise or lower the left and right clamping components. Furthermore, a single 180-degree rotation of the base automatically grips the workpiece, moves it to the corresponding position, and completes the automatic feeding. The entire process is automated, avoiding the need for manual workpiece removal and feeding in traditional devices, thus improving the automation level of the device.

Description

Technical Field

[0001] This invention belongs to the field of fastener production technology, specifically a feeding device for fastener production. Background Technology

[0002] Fasteners are common components in mechanical engineering. They connect two or more parts tightly together using threads, keyways, pins, etc., ensuring the strength and reliability of the connection. Common fasteners include screws, nuts, washers, pins, and springs. Tapping machines are often used in the processing of fasteners. A tapping machine is a mechanical device used to create threads; it is also called a thread tapping machine or thread cutting machine. It can cut internal or external threads on a workpiece for fastening to other components. During the tapping process, a feeding device is needed to assist in improving the thread processing efficiency of fasteners.

[0003] The conventional feeding components used in tapping machines mainly consist of a conveyor and a feeding device. The conveyor and the feeding device mainly consists of a conveyor belt and a feeding device. The conveyor belt is used to transport fasteners, while the feeding device can transport individual fasteners at equal distances. When a single fastener is transported to the bottom of the feeding device, the feeding device can pick up the fastener and transfer it to the feeding end of the tapping machine to complete the feeding operation. Although this feeding method can achieve periodic automatic feeding, the device can only transport fasteners to the worktable of the tapping machine. The workpiece still needs to be manually removed from the feeding device and placed on the worktable, resulting in a low degree of automation.

[0004] The current feeding devices can automatically grip fasteners, and there are two main gripping methods. One is mechanical gripping, which uses two relatively close mechanical grippers to grip the fasteners. This gripping method is relatively stable and not easy to fall off, but the overall gripping time is relatively long. The other method uses magnetic adsorption to grip the workpiece. Although this method can grip the workpiece quickly, there is a risk of the workpiece falling off if it is subjected to external vibration during the movement of the feeding device. It cannot simultaneously achieve both fast gripping and gripping stability, and needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device for fastener production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for fastener production, comprising a base, frames mounted on the front and rear sides of the top of the base, a lever between the two frames, a mounting shaft fixedly sleeved in the middle of the lever, the lever being movably connected to the two frames via the mounting shaft, the lever rotating relative to the frames via the mounting shaft, extension frames fixedly mounted on the left and right sides of the two frames, an arc-shaped plate mounted on the opposite ends of the two extension frames, an arc-shaped limiting groove formed inside the arc-shaped plate, the two arc-shaped plates being symmetrically arranged left and right, grooves formed on the left and right sides of the lever, clamping assemblies movably connected inside the grooves, the clamping assemblies rotating relative to the grooves, a partial structure of the clamping assemblies being movably engaged with the arc-shaped limiting grooves, and a support tank movably connected to the bottom of the base, the base rotating relative to the support tank.

[0007] Before using the device, it needs to be coordinated with an external tapping machine and a conveyor / distributor. The upper left side of the lever should be coordinated with the tapping machine, while the lower right side of the lever should be coordinated with the conveyor / distributor. That is, when the clamping component on the left side of the lever rises to its highest point, it should be exactly at the loading point of the tapping machine, and when the clamping component on the right side of the lever descends to its lowest point, it should be exactly at the distributing point of the distributor, meaning that a single workpiece is exactly below the clamping component. At the same time, the external tapping machine and the conveyor / distributor should be on the same horizontal line.

[0008] As a further technical solution of the present invention, a mounting base is fixedly connected to one end of the front frame, and a servo motor is fixedly connected to the top of the mounting base. The output shaft of the servo motor is connected to the front side of the mounting shaft.

[0009] The adjustment range of the lever should be set according to the distance between the external tapping machine and the external conveying and distributing machine. The minimum rotation angle range of the lever should be between -20 degrees and +20 degrees. At the same time, the length of the arc-shaped limiting groove should be set according to the adjustment range of the lever. That is, when the clamping assembly moves to the highest or lowest point of the arc-shaped limiting groove, this is the maximum rotation angle of the lever, and it should correspond to the external tapping machine and the external conveying and distributing machine.

[0010] In the initial state, the lever and the base are parallel. When loading is required, the servo motor can be controlled to rotate clockwise, which will drive the lever to rotate clockwise. At this time, the left end of the lever can tilt upward and the right end can tilt downward. After loading is completed, the servo motor can be controlled to rotate counterclockwise again, so that the lever and the base are parallel again, waiting for the second loading process.

[0011] As a further technical solution of the present invention, a cam divider is fixedly connected to the bottom end of the inner cavity of the support tank, a main motor is provided at the top end of the cam divider, the output shaft of the cam divider is connected to the input end of the main motor, and the output shaft of the main motor is connected to the middle part of the bottom end of the base.

[0012] The single rotation angle of the support tank is 180 degrees.

[0013] After the fastener is gripped, the cam divider can be activated and the base can be rotated accordingly via the main motor. At this time, the clamping assembly gripping the fastener can rotate 180 degrees, moving it directly below the tapping machine's feed end. Once the tapping machine's feeding end is fixed, the corresponding clamping assembly will no longer be loaded with fasteners. The lever can then be rotated 180 degrees to move the clamping assembly below the tapping machine to the top of the conveyor feeder, completing the cyclic feeding operation.

[0014] As a further technical solution of the present invention, the clamping assembly includes a mounting block, a rotating shaft is fixedly connected to the side of the mounting block near the lever, and the mounting block is movably connected to the groove through the rotating shaft. The mounting block rotates relative to the groove. Limiting posts are fixedly connected to the front and rear sides of the mounting block near the middle position. The limiting posts are movably engaged with the arc-shaped limiting groove, and the limiting posts are displaced relative to the arc-shaped limiting groove.

[0015] As a further technical solution of the present invention, the mounting block has a mounting groove in the middle, an electric push rod is fixedly connected to the right end of the inner cavity of the mounting groove, a limit block is fixedly connected to the output end of the electric push rod, the limit block moves left and right relative to the mounting groove, and a through groove is opened on the front side of the mounting block, which is connected to the mounting groove, and an extension plate is movably engaged inside the through groove.

[0016] As a further technical solution of the present invention, the rear end of the extension plate is connected to the front end of the limiting block, and an electromagnet located at the front end of the mounting block is fixedly connected to the front end of the extension plate.

[0017] When fasteners need to be loaded, the clamping assembly on the right end of the lever can be rotated above the external conveyor feeder. When the feeder dispenses individual fasteners, the servo motor can be activated to control the lever to rotate clockwise. The clockwise rotation of the lever drives the clamping assembly to rotate synchronously. At this time, the mounting block can rotate relative to the groove under the guidance of the limiting post and the arc-shaped limiting groove, and always maintain a parallel relationship with the base until the mounting block on the right side moves to the bottom of the arc-shaped limiting groove. At this time, the electric push rod can be extended, which will drive the limiting block, the extension plate and the electromagnet to extend. At the same time, the power of the electromagnet can be turned on to attract the fasteners, completing the fastener attraction and loading process.

[0018] Once the clamping assembly on the right is fixed, the lever can be rotated counterclockwise until it is parallel to the base. At this point, the clamping assembly with the fasteners will rise and rotate to the position directly below the tapping machine's loading end by rotating the base. Meanwhile, the lever will continue to rotate clockwise, and the clamping assembly with the fasteners will move to the loading end of the tapping machine, completing the automatic loading process.

[0019] By setting a rotatable lever, which works in conjunction with the locking between the limiting post and the arc-shaped limiting groove, the rotation of the lever can be controlled to raise or lower the two clamping components on the left and right sides. In addition, the base can be rotated 180 degrees at a time to automatically grab the workpiece and move it to the corresponding position to complete the automatic loading. The whole process is completed automatically, avoiding the need for manual workpiece removal and loading in traditional devices, thus improving the automation level of the device.

[0020] When gripping a workpiece, the clamping assembly on the right moves to the lowest point of the arc-shaped limiting groove, allowing for workpiece gripping. Meanwhile, the clamping assembly on the left moves to the highest point of the arc-shaped limiting groove. At this point, the fastener gripped by the clamping assembly is directly below the input end of the tapping machine and can be received and fixed by the tapping machine, completing both workpiece gripping and loading. By repeating this step, both workpiece gripping and tapping machine loading can be completed simultaneously.

[0021] By setting up two symmetrical clamping components and coordinating the left and right rotation of the lever, when the right clamping component is at its lowest point, the left clamping component at the bottom will necessarily be at its highest point. The right clamping component can perform the workpiece gripping process, while the left clamping component can load the workpiece onto the tapping machine's worktable. The two processes are completed simultaneously, reducing the loading time by half. This avoids the problem of workpiece gripping and loading being done in separate steps in traditional devices, significantly shortening the loading time and further improving processing efficiency.

[0022] As a further technical solution of the present invention, fixed guide rails are fixedly connected to the left and right sides of the front end of the mounting block, and guide blocks are movably engaged inside the fixed guide rails. Extension rods are fixedly connected to the upper and lower ends of the guide blocks, and extension rods are also fixedly connected to the left and right sides of the top end of the limiting block.

[0023] As a further technical solution of the present invention, a connecting rod is movably sleeved on the outer side of the extension rods at the upper and lower ends of the guide block, and the other end of the connecting rod is movably sleeved between the extension rods located on the left and right sides of the limiting block, and the connecting rod rotates relative to the two extension rods.

[0024] As a further technical solution of the present invention, the guide block is displaced back and forth relative to the fixed guide rail, and the front ends of the two guide blocks are fixedly connected to clamps, and the two clamps are provided with anti-slip grooves at their relatively close ends.

[0025] When gripping a workpiece, the extension of the electric push rod causes the limiting block to move away from the lever, thus reducing the distance between the limiting block and the fixed guide rail. This applies a force to the connecting rod, causing it to deflect. The distance between the two connecting rods then increases, and simultaneously, a force is applied to the two guide blocks, causing them to move away from each other and slide relative to the fixed guide rail. At this time, the two clamping plates move away from each other, and the fasteners and electromagnets are in an attractive state.

[0026] Once adsorption is complete, when the clamping assembly on the right moves upward, the electric push rod can be activated to shorten it. This causes the limiting block to move closer to the lever, increasing the distance between the limiting block and the fixed guide rail. Simultaneously, the two limiting blocks deflect, decreasing the angle between them, and bringing the two clamping plates closer together until they contact the fastener, clamping the fastener between the two clamping plates. This completes the clamping and fixing process. After fixing, the power to the electromagnet is turned off, releasing the adsorption. The fastener is now in the clamped and fixed state.

[0027] By simultaneously incorporating both clamping and adsorption fixing methods, and coordinating their operation with lever rotation to achieve vertical displacement of the clamping components, the device first utilizes adsorption fixing to quickly pick up the workpiece. During the adsorption and transfer process, clamping fixing replaces adsorption fixing, completing the clamping fixing during the transfer process. This effectively avoids the problem of traditional devices being unable to simultaneously achieve clamping stability and clamping efficiency, achieving stable clamping while shortening clamping time and improving feeding efficiency.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. This invention features a rotatable lever that engages with a limiting post and an arc-shaped limiting groove. By controlling the rotation of the lever, the left and right clamping components can be raised or lowered. Furthermore, a single 180-degree rotation of the base enables the automatic gripping and movement of the workpiece to the corresponding position, completing the automatic loading process. The entire process is automated, avoiding the need for manual workpiece removal and loading in traditional devices, thus improving the automation level of the device.

[0030] 2. This invention simultaneously incorporates clamping and adsorption fixing methods, which work in tandem. The rotation of levers facilitates the vertical displacement of the clamping assembly. This allows the device to first utilize adsorption fixing for rapid workpiece pickup, and then, during the transfer process, clamping fixation replaces adsorption fixing. This completes the clamping fixation during transfer, effectively avoiding the problem of traditional devices being unable to simultaneously achieve both clamping stability and clamping efficiency. It achieves stable clamping while shortening clamping time and improving loading efficiency.

[0031] 3. This invention features two symmetrical clamping components that, when the right clamping component is at its lowest point, the left clamping component at its bottom will be at its highest point. The right clamping component can grip the workpiece, while the left clamping component can load the workpiece onto the tapping machine's worktable. Both processes are completed simultaneously, halving the loading time and avoiding the problem of separate workpiece gripping and loading in traditional devices. This significantly reduces loading time and further improves processing efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the support tank of the present invention;

[0034] Figure 3 This is a schematic diagram showing the fit between the base and the frame structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the concealed base and frame structure of the present invention;

[0036] Figure 5 This is an exploded view of the arc-shaped limiting groove and clamping assembly structure of the present invention;

[0037] Figure 6 This is an exploded view of the groove and clamping assembly structure of the present invention;

[0038] Figure 7 This is a separate schematic diagram of the clamping assembly structure of the present invention;

[0039] Figure 8 This is a cross-sectional schematic diagram of the internal structure of the mounting groove of the present invention;

[0040] Figure 9 This is a schematic diagram of the hidden mounting block structure of the present invention.

[0041] In the diagram: 1. Base; 2. Frame; 3. Mounting seat; 4. Servo motor; 5. Support tank; 6. Main motor; 7. Cam divider; 8. Lever; 9. Mounting shaft; 10. Extension frame; 11. Arc plate; 12. Arc-shaped limiting groove; 13. Groove; 14. Clamping assembly; 141. Mounting block; 142. Limiting post; 143. Mounting groove; 144. Electric push rod; 145. Limiting block; 146. Extension rod; 147. Extension plate; 148. Electromagnet; 149. Fixed guide rail; 1410. Guide block; 1411. Clamping plate; 1412. Connecting rod. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1 to 9 As shown in the embodiment of the present invention, a feeding device for fastener production includes a base 1. A frame 2 is installed on both the front and rear sides of the top of the base 1. A lever 8 is provided between the two frames 2. A mounting shaft 9 is fixedly sleeved in the middle of the lever 8. The lever 8 is movably connected to the two frames 2 through the mounting shaft 9. The lever 8 rotates relative to the frame 2 through the mounting shaft 9. Extension frames 10 are fixedly installed on the left and right sides of the two frames 2. An arc-shaped plate 11 is installed at the relatively far end of each of the two extension frames 10. An arc-shaped limiting groove 12 is opened inside the arc-shaped plate 11. The two arc-shaped plates 11 are symmetrically arranged left and right. Grooves 13 are opened on both the left and right sides of the lever 8. A clamping assembly 14 is movably connected inside the groove 13. The clamping assembly 14 rotates relative to the groove 13. A partial structure of the clamping assembly 14 is movably engaged with the arc-shaped limiting groove 12. A support tank 5 is movably connected to the bottom of the base 1, and the base 1 rotates relative to the support tank 5.

[0044] Before using the device, it needs to be coordinated with an external tapping machine and a conveyor / distributor. The upper left side of lever 8 should be coordinated with the tapping machine, while the lower right side of lever 8 should be coordinated with the conveyor / distributor. That is, when the clamping assembly 14 on the left side of lever 8 rises to its highest point, it should be exactly at the loading point of the tapping machine, and when the clamping assembly 14 on the right side of lever 8 falls to its lowest point, it should correspond to the distributing point of the distributor, meaning that a single workpiece is exactly below the clamping assembly 14. At the same time, the external tapping machine and the conveyor / distributor should be on the same horizontal line.

[0045] like Figure 1 and Figure 3As shown, a mounting base 3 is fixedly connected to one end of the front frame 2, and a servo motor 4 is fixedly connected to the top of the mounting base 3. The output shaft of the servo motor 4 is connected to the front side of the mounting shaft 9.

[0046] The adjustment range of lever 8 should be set according to the distance between the external tapping machine and the external conveying and distributing machine. The minimum rotation angle range of lever 8 should be between -20 degrees and +20 degrees. At the same time, the length of arc-shaped limiting groove 12 should be set according to the adjustment range of lever 8. That is, when the clamping assembly 14 moves to the highest point or the lowest point of arc-shaped limiting groove 12, this is the maximum rotation angle of lever 8, and it corresponds to the external tapping machine and the external conveying and distributing machine.

[0047] In the initial state, lever 8 and base 1 are parallel. When loading is required, servo motor 4 can be controlled to rotate clockwise, which will drive lever 8 to rotate clockwise. At this time, the left end of lever 8 can tilt upward and the right end can tilt downward. After loading is completed, servo motor 4 can be controlled to rotate counterclockwise again, so that lever 8 is parallel to base 1 again, waiting for the second loading process.

[0048] like Figure 1 and Figure 2 As shown, a cam divider 7 is fixedly connected to the bottom of the inner cavity of the support tank 5. A main motor 6 is provided at the top of the cam divider 7. The output shaft of the cam divider 7 is connected to the input end of the main motor 6. The output shaft of the main motor 6 is connected to the middle of the bottom of the base 1.

[0049] The single rotation angle of the support tank 5 is 180 degrees.

[0050] After the fastener is gripped, the cam divider 7 can be activated and the base 1 can be rotated accordingly via the main motor 6. At this time, the clamping assembly 14 gripping the fastener can rotate 180 degrees, that is, the clamping assembly 14 gripping the fastener can be rotated to the direct under end of the tapping machine. After the tapping machine's feeding end is fixed, the corresponding clamping assembly 14 will no longer be loaded with fasteners. Then, the lever 8 can be controlled to rotate 180 degrees, so that the clamping assembly 14 located below the tapping machine can continue to rotate to the top of the conveyor and feeder, completing the cyclic feeding operation.

[0051] like Figure 6 and Figure 7 as well as Figure 8 and Figure 9As shown, the clamping assembly 14 includes a mounting block 141. A rotating shaft is fixedly connected to the side of the mounting block 141 near the lever 8, and the mounting block 141 is movably connected to the groove 13 through the rotating shaft. The mounting block 141 rotates relative to the groove 13. Limiting posts 142 are fixedly connected to the front and rear sides of the mounting block 141 near the center. The limiting posts 142 are movably engaged with the arc-shaped limiting groove 12, and the limiting posts 142 are displaced relative to the arc-shaped limiting groove 12. A mounting groove 143 is provided in the center of the mounting block 141. An electric push rod 144 is fixedly connected to the right end of the inner cavity of the mounting groove 143. A limit block 145 is fixedly connected to the output end of the electric push rod 144. The limit block 145 moves left and right relative to the mounting groove 143. A through groove communicating with the mounting groove 143 is opened on the front side of the mounting block 141. An extension plate 147 is movably engaged inside the through groove. The rear end of the extension plate 147 is connected to the front end of the limit block 145. An electromagnet 148 located at the front end of the mounting block 141 is fixedly connected to the front end of the extension plate 147.

[0052] Example 1: When fasteners need to be loaded, the clamping assembly 14 on the right end of lever 8 can be rotated above the external conveyor and distributor. When the distributor separates individual fasteners, the servo motor 4 can be turned on to control lever 8 to rotate clockwise. At this time, the clockwise rotation of lever 8 drives the clamping assembly 14 to rotate synchronously. At this time, the mounting block 141 can rotate relative to the groove 13 under the guidance of the limiting post 142 and the arc-shaped limiting groove 12, and always maintains a parallel relationship with the base 1 until the mounting block 141 on the right side moves to the bottom of the arc-shaped limiting groove 12. At this time, the electric push rod 144 can be extended, which will drive the limiting block 145, the extension plate 147 and the electromagnet 148 to extend. At the same time, the power of the electromagnet 148 can be turned on to attract the fasteners, completing the fastener attraction and loading process.

[0053] Once the clamping assembly 14 on the right end is fixed, the lever 8 can be controlled to rotate counterclockwise until the lever 8 and the base 1 are parallel to each other. At this time, the clamping assembly 14 loaded with fasteners will rise accordingly, and the clamping assembly 14 loaded with fasteners will be rotated to the bottom of the tapping machine by rotating the base 1. At the same time, the lever 8 will continue to be controlled to rotate clockwise. At this time, the clamping assembly 14 loaded with fasteners will move to the bottom of the tapping machine to complete the automatic feeding process.

[0054] By setting a rotatable lever 8, which engages with the locking post 142 and the arc-shaped locking groove 12, the rotation of the lever 8 can be controlled to raise or lower the two clamping components 14. In addition, the base 1 can rotate 180 degrees in one go to automatically grab the workpiece and move it to the corresponding position to complete the automatic loading. The whole process is completed automatically, avoiding the need for manual workpiece removal and loading in traditional devices, thus improving the automation level of the device.

[0055] When the workpiece is being gripped, the clamping assembly 14 on the right moves to the lowest point of the arc-shaped limiting groove 12, at which point the workpiece can be gripped. Meanwhile, the clamping assembly 14 on the left moves to the highest point of the arc-shaped limiting groove 12. At this point, the fastener gripped by the clamping assembly 14 is located directly below the input end of the tapping machine and can be received and fixed by the tapping machine, thus completing the workpiece gripping and loading. By repeating this step, the workpiece gripping and tapping machine loading processes can be completed simultaneously.

[0056] By setting two symmetrical clamping components 14 and coordinating the left and right rotation of the lever 8, when the right clamping component 14 is at its lowest point, the left clamping component 14 at the bottom will necessarily be at its highest point. The right clamping component 14 can perform the workpiece gripping process, while the left clamping component 14 can load the workpiece onto the tapping machine's worktable. The two processes are completed simultaneously, reducing the loading time by half. This avoids the problem of workpiece gripping and loading being done in separate steps in traditional devices, significantly shortening the loading time and further improving processing efficiency.

[0057] like Figure 8 and Figure 9 As shown, fixed guide rails 149 are fixedly connected to the left and right sides of the front end of the mounting block 141. Guide blocks 1410 are movably engaged inside the fixed guide rails 149. Extension rods 146 are fixedly connected to the upper and lower ends of the guide blocks 1410. Extension rods 146 are also fixedly connected to the left and right sides of the top of the limiting block 145. Connecting rods 1412 are movably sleeved on the outer surfaces of the extension rods 146 at the upper and lower ends of the guide blocks 1410. The other end of the connecting rods 1412 is movably sleeved between the extension rods 146 on the left and right sides of the limiting block 145. The connecting rods 1412 rotate relative to the two extension rods 146, and the guide blocks 1410 move back and forth relative to the fixed guide rails 149. Clamping plates 1411 are fixedly connected to the front ends of the two guide blocks 1410. Anti-slip grooves are opened at the relatively close ends of the two clamping plates 1411.

[0058] Example 2: When gripping a workpiece, the extension of the electric push rod 144 can drive the limiting block 145 to move away from the lever 8. At this time, the distance between the limiting block 145 and the fixed guide rail 149 decreases, and a force can be applied to the connecting rod 1412, causing the connecting rod 1412 to deflect. At this time, the distance between the two connecting rods 1412 increases, and at the same time, a force can be applied to the two guide blocks 1410, causing the two guide blocks 1410 to move away from each other, and slide relative to the fixed guide rail 149. At this time, the two clamping plates 1411 move away from each other, and the fastener and the electromagnet 148 are in an adsorption state.

[0059] Once adsorption is complete, when the clamping assembly 14 on the right side moves upward, the electric push rod 144 can be shortened by activating it. This causes the limiting block 145 to move closer to the lever 8, increasing the distance between the limiting block 145 and the fixed guide rail 149. Simultaneously, the two limiting blocks 145 deflect, decreasing the angle between them, and the two clamping plates 1411 move closer together until they contact the fastener, clamping the fastener between the two clamping plates 1411. This completes the clamping and fixing process. After fixing, the power to the electromagnet 148 is turned off, releasing the adsorption. The fastener is now in the clamped and fixed state.

[0060] By simultaneously incorporating both clamping and adsorption fixing methods and having them work in tandem, along with the rotation of lever 8 to achieve vertical displacement of the clamping assembly 14, the device first utilizes adsorption fixing to quickly pick up the workpiece when gripping it. During the adsorption and transfer process, clamping fixing replaces adsorption fixing, completing the clamping fixing during the transfer process. This effectively avoids the problem of traditional devices being unable to simultaneously achieve clamping stability and clamping efficiency, achieving stable clamping while shortening clamping time and improving feeding efficiency.

[0061] Working principle and usage process:

[0062] In the initial state, lever 8 and base 1 are parallel. When loading is required, servo motor 4 can be controlled to rotate clockwise, which will drive lever 8 to rotate clockwise. At this time, the left end of lever 8 can tilt upward and the right end can tilt downward. After loading is completed, servo motor 4 can be controlled to rotate counterclockwise again, so that lever 8 and base 1 are parallel again, waiting for the second loading process.

[0063] When fasteners need to be fed, the clamping assembly 14 on the right end of lever 8 can be rotated to the top of the external conveyor and feeder. When the feeder separates individual fasteners, the servo motor 4 can be turned on to control lever 8 to rotate clockwise. At this time, the clockwise rotation of lever 8 will drive the clamping assembly 14 to rotate synchronously. At this time, the mounting block 141 can rotate relative to the groove 13 under the guidance of the limiting post 142 and the arc-shaped limiting groove 12, and always maintain a parallel relationship with the base 1 until the mounting block 141 on the right side moves to the bottom of the arc-shaped limiting groove 12. At this time, the electric push rod 144 can be extended, and the limiting block 145, extension plate 147 and electromagnet 148 can be extended. At the same time, the power of electromagnet 148 can be turned on to attract the fasteners and complete the fastener attraction and feeding process.

[0064] Once the clamping assembly 14 on the right end is fixed, the lever 8 can be controlled to rotate counterclockwise until the lever 8 and the base 1 are parallel to each other. At this time, the clamping assembly 14 loaded with fasteners will rise accordingly, and the clamping assembly 14 loaded with fasteners will be rotated to the bottom of the tapping machine by rotating the base 1. At the same time, the lever 8 will continue to be controlled to rotate clockwise. At this time, the clamping assembly 14 loaded with fasteners will move to the bottom of the tapping machine to complete the automatic feeding process.

[0065] When the workpiece is gripped, the extension of the electric push rod 144 can drive the limiting block 145 to move away from the lever 8. At this time, the distance between the limiting block 145 and the fixed guide rail 149 decreases, and a force can be applied to the connecting rod 1412, which causes the connecting rod 1412 to deflect. At this time, the distance between the two connecting rods 1412 increases. At the same time, a force can be applied to the two guide blocks 1410, which causes the two guide blocks 1410 to move away from each other and slide relative to the fixed guide rail 149. At this time, the two clamping plates 1411 move away from each other, and the fastener and the electromagnet 148 are in an adsorption state.

[0066] After adsorption is complete, when the clamping assembly 14 on the right moves upward, the electric push rod 144 can be shortened by turning it on. This will cause the limiting block 145 to move closer to the lever 8. At this time, the distance between the limiting block 145 and the fixed guide rail 149 increases, and the two limiting blocks 145 deflect. The angle between the two limiting blocks 145 decreases, and the two clamping plates 1411 move closer to each other until they come into contact with the fastener. The fastener is clamped between the two clamping plates 1411, and the clamping and fixing are completed. After the fixing is completed, the power of the electromagnet 148 is turned off to release the adsorption. At this time, the fastener is in the clamped and fixed state.

[0067] When the workpiece is being gripped, the clamping assembly 14 on the right moves to the lowest point of the arc-shaped limiting groove 12, at which point the workpiece can be gripped. Meanwhile, the clamping assembly 14 on the left moves to the highest point of the arc-shaped limiting groove 12. At this point, the fastener gripped by the clamping assembly 14 is located directly below the input end of the tapping machine and can be received and fixed by the tapping machine, thus completing the workpiece gripping and loading. By repeating this step, the workpiece gripping and tapping machine loading processes can be completed simultaneously.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for fastener production, comprising a base (1), characterized in that: The base (1) has frames (2) installed on both the front and rear sides of its top. A lever (8) is provided between the two frames (2). A mounting shaft (9) is fixedly sleeved in the middle of the lever (8). The lever (8) is movably connected to the two frames (2) through the mounting shaft (9). The lever (8) rotates relative to the frames (2) through the mounting shaft (9). Extension frames (10) are fixedly installed on the left and right sides of the two frames (2). An arc plate (11) is installed at the far end of each of the two extension frames (10). The inside of the shaped plate (11) is provided with an arc-shaped limiting groove (12). The two arc-shaped plates (11) are arranged symmetrically on the left and right. The lever (8) is provided with grooves (13) on both the left and right sides. The inside of each groove (13) is movably connected with a clamping assembly (14). The clamping assembly (14) rotates relative to the groove (13). The partial structure of the clamping assembly (14) is movably engaged with the arc-shaped limiting groove (12). The bottom end of the base (1) is movably connected with a support tank (5). The base (1) rotates relative to the support tank (5).

2. The feeding device for fastener production according to claim 1, characterized in that: A mounting base (3) is fixedly connected to one end of the frame (2) located on the front side. A servo motor (4) is fixedly connected to the top of the mounting base (3). The output shaft of the servo motor (4) is connected to the front side of the mounting shaft (9).

3. The feeding device for fastener production according to claim 1, characterized in that: A cam divider (7) is fixedly connected to the bottom of the inner cavity of the support tank (5). A main motor (6) is provided at the top of the cam divider (7). The output shaft of the cam divider (7) is connected to the input end of the main motor (6). The output shaft of the main motor (6) is connected to the middle part of the bottom of the base (1).

4. The feeding device for fastener production according to claim 1, characterized in that: The clamping assembly (14) includes a mounting block (141). A rotating shaft is fixedly connected to the side of the mounting block (141) near the lever (8), and the mounting block (141) is movably connected to the groove (13) through the rotating shaft. The mounting block (141) rotates relative to the groove (13). Limiting posts (142) are fixedly connected to the front and rear sides of the mounting block (141) and near the middle. The limiting posts (142) are movably engaged with the arc-shaped limiting groove (12), and the limiting posts (142) are displaced relative to the arc-shaped limiting groove (12).

5. The feeding device for fastener production according to claim 4, characterized in that: The mounting block (141) has a mounting groove (143) in the middle. An electric push rod (144) is fixedly connected to the right end of the inner cavity of the mounting groove (143). A limit block (145) is fixedly connected to the output end of the electric push rod (144). The limit block (145) moves left and right relative to the mounting groove (143). A through groove is opened on the front side of the mounting block (141) and communicates with the mounting groove (143). An extension plate (147) is movably engaged inside the through groove.

6. The feeding device for fastener production according to claim 5, characterized in that: The rear end of the extension plate (147) is connected to the front end of the limiting block (145), and the front end of the extension plate (147) is fixedly connected to an electromagnet (148) located at the front end of the mounting block (141).

7. A feeding device for fastener production according to claim 6, characterized in that: Fixed guide rails (149) are fixedly connected to the left and right sides of the front end of the mounting block (141). Guide blocks (1410) are movably engaged inside the fixed guide rails (149). Extension rods (146) are fixedly connected to the upper and lower ends of the guide blocks (1410). Extension rods (146) are also fixedly connected to the left and right sides of the top of the limiting block (145).

8. A feeding device for fastener production according to claim 7, characterized in that: A connecting rod (1412) is movably sleeved on the outer side of the extension rod (146) located at the upper and lower ends of the guide block (1410). The other end of the connecting rod (1412) is movably sleeved between the extension rod (146) located on the left and right sides of the limiting block (145). The connecting rod (1412) rotates relative to the two extension rods (146).

9. A feeding device for fastener production according to claim 8, characterized in that: The guide block (1410) moves back and forth relative to the fixed guide rail (149). The front ends of the two guide blocks (1410) are fixedly connected to the clamps (1411), and the two clamps (1411) are provided with anti-slip grooves at their relatively close ends.

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