A friction-melting self-extruding screw deburring device

Abstract

This invention belongs to the field of screw manufacturing technology, specifically a friction-melting self-extrusion screw deburring device, including a worktable; a rotating shaft is rotatably connected to the front end face of the worktable, and the rotating shaft is connected to the output end of an external motor; a square seat is fixedly connected to the outer circumference of the rotating shaft; clamping seats are fixedly connected to the four end faces of the square seat, and the clamping seats are hollow cylindrical seats that facilitate the placement of screws; each clamping seat is provided with a clamping mechanism for clamping the screw; the clamping seat on the left is connected to an external conveyor belt, which can transport the screw to be deburred into the clamping seat; the conveyor plate sends the subsequent screws to be inspected into the clamping seat on the left. After the burrs on the upper screws are deburred, the square seat rotates 90 degrees clockwise, and the steps of the cylinder seat and the rotating motor are repeated to achieve uninterrupted deburring of the screws, thereby improving the screw processing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of screw manufacturing technology, specifically a deburring device for self-extruding screws through friction melting. Background Technology

[0002] Screws and bolts are basic single-unit parts used in industrial applications to connect and fasten two or more structural components. Usually, the structural components being fastened and the fastening components have pre-drilled threaded holes, or pre-drilled holes that can be extruded or cut to form threads, and are connected and fastened by steel self-tapping screws or bolts.

[0003] In China, the forming of connecting threads in sheet metal structures increasingly utilizes the melting drilling technology to achieve chip-free piercing, followed by threading through tap cutting. However, after threading, some burrs inevitably appear at the end of the screw. If there are too many burrs, it may cause the nut to be unable to be screwed into the screw, affecting the subsequent use of the screw.

[0004] Currently, when dealing with burrs on the ends of screws, the presence of threads on the screw's circumference makes the process quite troublesome. Some methods involve using a sanding plate for polishing, which is also cumbersome.

[0005] Therefore, the present invention provides a device for deburring self-extruding screws by friction melting. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A friction-melting self-extrusion screw deburring device of this invention includes a worktable; a rotating shaft is rotatably connected to the front end face of the worktable, and the rotating shaft is connected to the output end of an external motor; a square seat is fixedly connected to the outer circumferential surface of the rotating shaft; clamping seats are fixedly connected to the four end faces of the square seat, and each clamping seat is a hollow cylindrical seat, which facilitates the placement of screws; each clamping seat is provided with a clamping mechanism for clamping the screw; the left clamping seat is connected to an external conveyor belt, through which the screw to be deburred can be transported into the clamping seat; a mounting plate is fixedly connected to the upper end face of the worktable; a cylinder seat is fixedly connected to the end of the mounting plate away from the worktable; a rotary motor is fixedly connected to the telescopic end of the cylinder seat; the output end of the rotary motor is provided with multiple friction rods for deburring screws; during operation, when processing the screw to be deburred, through... An external conveyor belt feeds screws into the left-side clamping seat, where the internal clamping mechanism holds the screws. A drive motor then rotates the shaft and square seat 90 degrees clockwise, bringing the left-side clamping seat to the same vertical plane as the friction rod. Next, the extension end of the control cylinder seat moves the rotary motor downwards, pressing the friction rod against the upper outer wall of the screw. The output end of the control rotary motor rotates the friction rod, deburring the upper outer wall of the screw. This automatic deburring prevents excessive burrs from preventing the nut from being screwed in. Simultaneously, the conveyor plate feeds subsequent screws into the left-side clamping seat. After the upper screws have been deburred, the square seat rotates 90 degrees clockwise, repeating the cylinder seat and rotary motor steps to achieve continuous deburring of the screws, improving processing efficiency.

[0008] Preferably, the clamping mechanism includes an electric telescopic rod fixed to the inner wall of the clamping seat; a wrapping plate is fixed to the end of the electric telescopic rod away from the inner wall of the clamping seat; the wrapping plate is made of rubber; multiple arc-shaped bladders are fixed to the end face of the wrapping plate near the screw; during operation, when the screw enters the clamping seat, by controlling the telescopic end of the electric telescopic rod to move closer to the screw, its telescopic end and the wrapping plate clamp the threaded part of the screw, which can perform positioning processing on the screw, improve the stability of the screw during deburring, and prevent it from self-rotating during deburring, thus affecting the deburring problem; and the arc-shaped bladders can protect the threaded part from scratches; when the clamping seat rotates to the lower position, the processed screw can be removed simply by controlling the electric telescopic rod and the wrapping plate away from the screw.

[0009] Preferably, a vertical rod is fixed to the output end of the rotary motor; multiple friction rods are fixed to the outer circumferential surface of the vertical rod in a circumferential array; a through ring is fixed to the bottom of each friction rod for passing through the screw; the diameter of the through ring is larger than the diameter of the friction rod; the friction rods are designed to expand outwards from top to bottom; during operation, when the telescopic end of the cylinder seat drives the rotary motor to move downwards, the rotary motor will simultaneously drive the vertical rod, friction rods, and through rings to move towards the screw. Because the friction rods are designed to expand outwards from top to bottom, i.e., the frame formed by multiple friction rods has a smaller diameter at the top and a larger diameter at the bottom, the upper outer wall of the screw will gradually contact the upper circumferential surface of the multiple friction rods. Subsequently, by the rotary motor driving the vertical rod and friction rods, the upper outer wall of the screw can be polished. This design not only avoids damaging the screw threads and facilitates subsequent use of the screw, but also the expanding design of the friction rods can adapt to different types of screws, improving practicality.

[0010] Preferably, each of the friction rods has friction patterns on its outer peripheral surface; the outer peripheral surface of the friction patterns has rounded corners; during operation, the friction patterns on the outer peripheral surface of the friction rods improve the grinding effect of the friction rods on the upper outer wall of the screw, and facilitate the subsequent use of the screw.

[0011] Preferably, a limiting plate is fixed to the outer peripheral surface of the rotary motor; a shielding circular frame is fixed to the lower end surface of the limiting plate to prevent debris from splashing; during operation, when the rotary motor moves towards the screw, it will simultaneously drive the shielding circular frame to move, and then the shielding circular frame will be on the outside of the screw, which can shield the debris generated when the screw is deburred, thus avoiding the problem of debris splashing onto the worktable surface.

[0012] Preferably, two positioning rods are fixedly connected to the outer circumferential surface of the shielding round frame; two positioning sleeves are fixedly connected to the outer circumferential surface of the clamping seat at the corresponding positions of the positioning rods; the positioning sleeve is provided with a through groove adapted to the positioning rod, and the length of the vertical section of the positioning rod is adapted to the depth of the through groove in the positioning sleeve; during operation, when the shielding round frame moves towards the screw, the shielding round frame will drive the positioning rod to gradually extend into the positioning sleeve. Through the setting of the positioning rod and the positioning sleeve, when the positioning rod enters the positioning sleeve, it can be ensured that each friction rod is connected to the upper outer wall of the screw, which improves the deburring efficiency of the screw and ensures that the vertical rod and the screw are on the same vertical center line.

[0013] Preferably, a limiting frame is fixedly connected to the outer circumferential surface of the shielding circular frame away from the positioning rod; there are two limiting frames, which are symmetrically arranged relative to the shielding circular frame; a rotating rod is rotatably connected to the inner wall of the limiting frame; a deflecting post is fixedly connected to the outer circumferential surface of the rotating rod; a winding ring plate is fixedly connected to the bottom of the deflecting post, and the winding ring plate is made of shrinkable rubber; a contact rod is fixedly connected to the upper end face of the clamping seat at the corresponding position of the deflecting post; when the deflecting post moves downward with the shielding circular frame, the outer surface of the deflecting post will contact the top of the contact rod; during operation, in the initial state, the winding ring plates on both sides are in a separated state, and the two are separated. The gap allows the screw to pass through; when the shielding ring moves downward with the rotary motor, the deflection post on the surface of the shielding ring will contact the contact rod on the upper end face of the clamping seat and squeeze the deflection post. The deflection posts on both sides are pressed, which will drive the winding ring plate at the bottom to move in the opposite direction. Then the retractable rubber winding ring plates on both sides will contact the screw thread and wrap around the outer circumference of the screw. With the action of the shielding ring above, the machined surface of the screw can be kept in a closed environment, preventing debris from falling into the clamping seat and occupying the space of the clamping seat, which would affect the subsequent clamping of the screw by the clamping seat, thus maintaining a good working environment.

[0014] Preferably, a tightening ring is fixedly connected above the winding ring plate. The tightening ring has an outward expansion design from bottom to top, and the top of the tightening ring is fixedly connected to the bottom of the through ring. A recycling frame is fixedly connected to the bottom of the worktable. A torsion spring is provided on the inner wall of the rotating rod. During operation, the tightening ring is provided above the winding ring plate, which allows the tightening ring to be placed in a contracted state on the outer wall of the screw when the winding ring plates on both sides wrap around it. This facilitates the falling of debris into the tightening ring. Moreover, when the rotating rod rotates, it will simultaneously drive the torsion spring on its inner wall to contract. After the burr is removed once, when the deflection post and the contact rod move away from each other, the torsion spring returns to its initial state, thus facilitating the subsequent removal of the screw.

[0015] Preferably, the inner wall of the tightening ring is provided with a negative pressure suction hole; the negative pressure suction hole is connected to an external waste frame through an air extraction pipe, and the air extraction pipe is controlled by an external air pump; during operation, when the screw burrs are being processed, the external air pump is controlled to allow the air extraction pipe to draw air through the negative pressure suction hole, which can suck up the debris that falls into the tightening ring, making it convenient to collect and process the debris.

[0016] Preferably, the inner wall of the recycling box is lined with a rubber pad; the outer wall of the rubber pad is provided with multiple friction protrusions; during operation, when the processed screws fall into the recycling box, the rubber pad on its inner wall can prevent the screws from being scratched due to the high hardness of the recycling box, thus facilitating the subsequent use of the screws.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The friction-melting self-extrusion screw deburring device of the present invention deburrs the upper outer wall of the screw through a friction rod, thereby automatically removing burrs from the upper outer wall of the screw and avoiding the problem of excessive burrs on the upper outer wall of the screw, which would prevent the nut from being screwed in. While the friction rod is deburring the screw, the subsequent screws to be tested are fed into the clamping seat on the left side by a conveyor plate. After the burrs on the upper screw are removed, the square seat rotates 90 degrees clockwise and repeats the steps of the cylinder seat and the rotary motor, thereby achieving uninterrupted deburring of the screw and improving the screw processing efficiency.

[0019] 2. The friction-melting self-extrusion screw deburring device of the present invention uses a frame formed by multiple friction rods with a small upper diameter and a large lower diameter. Therefore, the upper outer wall of the screw gradually comes into contact with the upper peripheral surface of the multiple friction rods. Then, by rotating the motor to drive the vertical rod and the friction rods, the upper outer wall of the screw can be polished. This design not only avoids damaging the screw threads and facilitates subsequent use of the screw, but also the expandable design of the friction rods can adapt to different types of screws, improving practicality.

[0020] 3. The friction-melting self-extrusion screw deburring device of the present invention uses the deflection columns on both sides to move the bottom winding ring plate in opposite directions when pressed. Then, the retractable rubber winding ring plates on both sides will contact the screw thread and wrap around the outer circumference of the screw. With the help of the shielding round frame above, the machined surface of the screw can be kept in a closed environment, preventing debris from falling into the clamping seat and occupying the space of the clamping seat, which would affect the subsequent clamping of the screw by the clamping seat, thus maintaining a good working environment. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a front view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the square base in this invention;

[0025] Figure 4 This is a schematic diagram of the clamping seat structure in this invention;

[0026] Figure 5 This is a schematic diagram of the friction rod structure in this invention;

[0027] Figure 6 This is a schematic diagram of the through-ring structure in this invention;

[0028] Figure 7 This is a schematic diagram of the deflection column structure in this invention;

[0029] Figure 8 This is a schematic diagram of the positioning rod structure in this invention;

[0030] Figure 9 This is a schematic diagram of the tightening ring structure in this invention;

[0031] Figure 10 This is a schematic diagram of the rubber pad structure in the second embodiment of the present invention.

[0032] In the diagram: 1. Workbench; 101. Recycling frame; 102. Rubber pad; 2. Rotating shaft; 3. Square seat; 301. Clamping seat; 4. Mounting plate; 401. Cylinder seat; 402. Rotary motor; 403. Limiting plate; 5. Friction rod; 501. Friction texture; 6. Electric telescopic rod; 7. Wrapping plate; 8. Vertical rod; 9. Through ring; 10. Shielding round frame; 11. Positioning rod; 12. Positioning sleeve; 13. Limiting frame; 14. Rotating rod; 141. Torsion spring; 15. Deflection column; 16. Winding ring plate; 17. Contact rod; 18. Tightening ring; 19. Negative pressure suction hole. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0034] like Figures 1 to 5 As shown in the embodiment of the present invention, a friction-melting self-extrusion screw deburring device includes a worktable 1; a rotating shaft 2 is rotatably connected to the front end face of the worktable 1, and the rotating shaft 2 is connected to the output end of an external motor; a square seat 3 is fixedly connected to the outer circumferential surface of the rotating shaft 2; a clamping seat 301 is fixedly connected to each of the four end faces of the square seat 3, and the clamping seat 301 is a hollow cylindrical seat, which can facilitate the placement of screws; each clamping seat 301 is provided with a clamping mechanism for clamping the screw; the clamping seat 301 on the left side is connected to an external conveyor belt, and the screw to be deburred can be transported into the clamping seat 301 by the external conveyor belt; a mounting plate 4 is fixedly connected to the upper end face of the worktable 1; a cylinder seat 401 is fixedly connected to the end of the mounting plate 4 away from the worktable 1; a rotary motor 402 is fixedly connected to the telescopic end of the cylinder seat 401; and a plurality of friction rods 5 for deburring screws are provided at the output end of the rotary motor 402.

[0035] In the formation of connecting threads in sheet metal structures, the use of welding drilling technology to achieve chip-free piercing is increasingly common. Threads are then formed by tapping. However, after threading, burrs inevitably appear at the end of the screw. If there are too many burrs, it may cause the nut to be unable to be screwed into the screw, affecting the subsequent use of the screw. Currently, when dealing with burrs at the end of the screw, the presence of threads on the screw's circumference makes burr removal quite troublesome. Some methods involve using a grinding plate for polishing, which is also cumbersome.

[0036] When working with deburred screws (refer to the attached document), Figure 1 and Figure 3 When processing (as shown in Figure A), the screw is fed into the clamping seat 301 on the left side via an external conveyor belt, where the clamping mechanism inside clamps the screw. Then, the drive motor drives the rotating shaft 2 and the square seat 3 to rotate 90 degrees clockwise, so that the clamping seat 301 on the left side is on the same vertical plane as the friction rod 5. After that, the telescopic end of the cylinder seat 401 is controlled to drive the rotary motor 402 to move downward, so that the friction rod 5 presses against the upper outer wall of the screw. The output end of the rotary motor 402 is controlled to drive the friction rod 5 to rotate, and the friction rod 5 will deburr the upper outer wall of the screw, realizing automatic deburring of the upper outer wall of the screw, avoiding the problem of too many burrs on the upper outer wall of the screw, which would prevent the nut from being screwed in.

[0037] While the friction rod 5 deburrs the screws, the subsequent screws to be tested are fed into the clamping seat 301 on the left side by the conveyor plate. After the screw burrs above are processed, the square seat 3 rotates 90 degrees clockwise and repeats the steps of the cylinder seat 401 and the rotary motor 402 to achieve uninterrupted deburring of the screws, thus improving the screw processing efficiency. This design not only allows for uninterrupted deburring of the screws, but also avoids the need to use a grinding plate, making the process more convenient.

[0038] The clamping mechanism includes an electric telescopic rod 6 fixedly connected to the inner wall of the clamping seat 301; a wrapping plate 7 is fixedly connected to the end of the electric telescopic rod 6 away from the inner wall of the clamping seat 301; the wrapping plate 7 is made of rubber; multiple arc-shaped bladders are fixedly connected to the end face of the wrapping plate 7 near the screw; during operation, when the screw enters the clamping seat 301, the telescopic end of the electric telescopic rod 6 is controlled to move closer to the screw, so that its telescopic end and the wrapping plate 7 clamp the threaded part of the screw, which can perform positioning processing on the screw, improve the stability of the screw during deburring, and avoid the screw from rotating during deburring, which would affect the deburring process; and the arc-shaped bladders can protect the threaded part from scratches.

[0039] When the clamping seat 301 rotates to the lower position, the processed screw can be removed simply by controlling the electric telescopic rod 6 and the wrapping plate 7 to move away from the screw.

[0040] like Figures 5 to 9 As shown, the output end of the rotary motor 402 is fixedly connected to a vertical rod 8; a plurality of friction rods 5 are fixedly connected to the outer circumferential surface of the vertical rod 8 in a circumferential array; a through ring 9 is fixedly connected to the bottom of the friction rod 5, and the through ring 9 is used to pass through the screw; the diameter of the through ring 9 is larger than the diameter of the friction rod 5; the plurality of friction rods 5 are designed to expand outward from top to bottom;

[0041] During operation, when the telescopic end of the cylinder seat 401 drives the rotary motor 402 to move downward, the rotary motor 402 simultaneously drives the vertical rod 8, the friction rod 5, and the through ring 9 to move towards the screw side. Because the friction rod 5 has an outward expansion design from top to bottom, that is, the frame formed by multiple friction rods 5 has a small upper diameter and a large lower diameter, the upper outer wall of the screw will gradually come into contact with the upper peripheral surface of the multiple friction rods 5. Then, by the rotary motor 402 driving the vertical rod 8 and the friction rod 5, the upper outer wall of the screw can be polished. This design not only avoids damaging the screw threads and facilitates subsequent use of the screw, but also the expansion design of the friction rod 5 can adapt to different types of screws, improving practicality.

[0042] Each of the friction rods 5 has a friction texture 501 on its outer peripheral surface; the outer peripheral surface of the friction texture 501 has rounded corners; during operation, the friction texture 501 on the outer peripheral surface of the friction rod 5 improves the grinding effect of the friction rod 5 on the upper outer wall of the screw, and facilitates the subsequent use of the screw.

[0043] The outer peripheral surface of the rotary motor 402 is fixedly connected to a limiting disk 403; the lower end surface of the limiting disk 403 is fixedly connected to a shielding circular frame 10 to prevent debris from splashing.

[0044] During operation, when the rotary motor 402 moves towards the screw, it will simultaneously drive the shielding round frame 10 to move. Subsequently, the shielding round frame 10 will be on the outside of the screw, which can shield the debris generated when the screw is deburred, thus preventing the debris from splashing onto the surface of the worktable 1.

[0045] Two positioning rods 11 are fixedly connected to the outer circumferential surface of the shielding round frame 10; two positioning sleeves 12 are fixedly connected to the outer circumferential surface of the clamping seat 301 at the corresponding positions of the positioning rods 11; the positioning sleeve 12 is provided with a through groove adapted to the positioning rods 11, and the length of the vertical section of the positioning rods 11 and the depth of the through groove in the positioning sleeve 12 are adapted to each other; during operation, when the shielding round frame 10 moves towards the side closer to the screw, the shielding round frame 10 will drive the positioning rods 11 to gradually extend into the positioning sleeve 12. Through the setting of the positioning rods 11 and the positioning sleeves 12, when the positioning rods 11 enter the positioning sleeves 12, it can be ensured that each friction rod 5 is connected to the upper outer wall of the screw, which improves the deburring efficiency of the screw and ensures that the vertical rods 8 and the screw are on the same vertical center line.

[0046] A limiting frame 13 is fixedly connected to the outer circumferential surface of the shielding round frame 10 away from the positioning rod 11; there are two limiting frames 13, which are symmetrically arranged with respect to the shielding round frame 10; a rotating rod 14 is rotatably connected to the inner wall of the limiting frame 13; a deflection column 15 is fixedly connected to the outer circumferential surface of the rotating rod 14; a winding ring plate 16 is fixedly connected to the bottom of the deflection column 15, and the winding ring plate 16 is made of shrinkable rubber; a contact rod 17 is fixedly connected to the upper end surface of the clamping seat 301 at the corresponding position of the deflection column 15; when the deflection column 15 moves downward with the shielding round frame 10, the outer surface of the deflection column 15 will contact the top of the contact rod 17.

[0047] During operation, in the initial state, the two winding ring plates 16 are separated from each other, and the gap between them allows the screw to pass through. When the shielding ring 10 moves downward with the rotary motor 402, the deflection post 15 on the surface of the shielding ring 10 will contact the contact rod 17 on the upper end face of the clamping seat 301 and squeeze the deflection post 15. The deflection post 15 on both sides is pressed, which will drive the winding ring plate 16 at its bottom to move in opposite directions. Then, the two retractable rubber winding ring plates 16 on both sides will contact the threads of the screw and wrap around the outer circumference of the screw. With the action of the shielding ring 10 above, the machined surface of the screw can be kept in a closed environment, preventing debris from falling into the clamping seat 301 and occupying the space of the clamping seat 301, which would affect the subsequent clamping of the screw by the clamping seat 301, thus maintaining a good working environment.

[0048] A tightening ring 18 is fixedly connected above the winding ring plate 16. The tightening ring 18 has an outward expansion design from bottom to top, and the top of the tightening ring 18 is fixedly connected to the bottom of the through ring 9. A recycling frame 101 is fixedly connected to the bottom of the workbench 1. A torsion spring 141 is provided on the inner wall of the rotating rod 14. During operation, the tightening ring 18 is provided above the winding ring plate 16, which makes it convenient for the winding ring plates 16 on both sides to wrap around the outer wall of the screw. The tightening ring 18 will be placed in a closed state on the outer wall of the screw, which makes it easy for debris to fall into the tightening ring 18. Moreover, when the rotating rod 14 rotates, it will simultaneously drive the torsion spring 141 on its inner wall to contract. When the burr is processed once, the deflection post 15 and the contact rod 17 move away from each other, and the torsion spring 141 returns to its initial state, which facilitates the subsequent removal of the screw.

[0049] Reference Figure 5 , Figure 6 and Figure 7 As shown, this is a schematic diagram of the state when the two sides of the winding ring plate 16 and the tightening ring 18 are abutting against each other.

[0050] The inner wall of the tightening ring 18 is provided with a negative pressure suction hole 19; the negative pressure suction hole 19 is connected to an external waste frame through an air extraction pipe, and the air extraction pipe is controlled by an external air pump; during operation, when the screw burrs are being processed, the external air pump is controlled to make the air extraction pipe draw air through the negative pressure suction hole 19, which can suck up the debris that falls into the tightening ring 18, making it convenient to collect and process the debris. Example 2

[0051] like Figure 10 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the inner wall of the recycling frame 101 is covered with a rubber pad 102; the outer wall of the rubber pad 102 is provided with a plurality of friction protrusions; during operation, when the processed screw falls into the recycling frame 101, the rubber pad 102 on its inner wall can prevent the screw from being scratched due to the high hardness of the recycling frame 101 when it falls into the recycling frame 101, thus facilitating the subsequent use of the screw.

[0052] During operation, when deburring screws are processed as shown in Figure A, the screws are fed into the clamping seat 301 on the left side via an external conveyor belt. By controlling the extension end of the electric telescopic rod 6 to move closer to the screw, the extension end, the wrapping plate 7, and the clamping seat 301 themselves can position the screw, improving the stability of the screw during deburring and preventing it from rotating during deburring, which would affect the deburring process.

[0053] Then, the drive motor drives the rotating shaft 2 and the square seat 3 to rotate 90 degrees clockwise, so that the clamping seat 301 on the left side rotates to be on the same vertical plane as the friction rod 5. Then, the telescopic end of the control cylinder seat 401 drives the rotary motor 402 to move downward. The rotary motor 402 will simultaneously drive the vertical rod 8, the friction rod 5 and the through ring 9 to move towards the screw side. Since the friction rod 5 is designed to expand outward from top to bottom, that is, the frame formed by multiple friction rods 5 has a small diameter at the top and a large diameter at the bottom, the upper outer wall of the screw will gradually come into contact with the upper peripheral surface of multiple friction rods 5. Then, by driving the vertical rod 8 and the friction rod 5 through the rotary motor 402, the upper outer wall of the screw can be polished. This design not only does not damage the screw thread and facilitates the subsequent use of the screw, but also the expansion design of the friction rod 5 can adapt to different types of screws, improving practicality.

[0054] The friction rod 5 is pressed against the upper outer wall of the screw. The output end of the rotary motor 402 is controlled to drive the friction rod 5 to rotate. The friction rod 5 will deburr the upper outer wall of the screw, realize the automatic deburring of the upper outer wall of the screw, and avoid the problem that the nut cannot be screwed into the screw due to too many burrs on the upper outer wall of the screw.

[0055] When the rotary motor 402 moves towards the screw, it simultaneously drives the shielding round frame 10 to move. Subsequently, the shielding round frame 10 will be on the outside of the screw, which can shield the debris generated when the screw is deburred, and avoid the problem of debris splashing onto the surface of the worktable 1. When the shielding round frame 10 moves closer to the screw, the shielding round frame 10 will drive the positioning rod 11 to gradually extend into the positioning sleeve 12. Through the setting of the positioning rod 11 and the positioning sleeve 12, when the positioning rod 11 enters into the positioning sleeve 12, it can ensure that each friction rod 5 is connected to the upper outer wall of the screw, which improves the deburring efficiency of the screw and ensures that the vertical rod 8 and the screw are on the same vertical center line.

[0056] In the initial state, the two winding ring plates 16 are separated from each other, and the gap between them allows the screw to pass through. When the shielding ring 10 moves downward with the rotary motor 402, the deflection post 15 on the surface of the shielding ring 10 contacts the contact rod 17 on the upper end face of the clamping seat 301 and squeezes the deflection post 15. The deflection post 15 on both sides is pressed, which drives the winding ring plate 16 at its bottom to move in opposite directions. Then, the retractable rubber winding ring plates 16 on both sides will contact the threads of the screw and wrap around the outer circumference of the screw. With the action of the shielding ring 10 above, the machined surface of the screw can be kept in a closed environment. To prevent debris from falling into the clamping seat 301 and occupying its space, thus affecting the subsequent clamping of screws, a good working environment is maintained. A tightening ring 18 is provided above the winding ring plate 16. When the winding ring plates 16 on both sides wrap around the outer wall of the screw, the tightening ring 18 will be in a closed state and placed on the outer wall of the screw, making it easy for debris to fall into the tightening ring 18. Moreover, when the rotating rod 14 rotates, it will simultaneously drive the torsion spring 141 on its inner wall to contract. After the burr is removed once, when the deflection post 15 and the contact rod 17 move away, the torsion spring 141 returns to its initial state, thus facilitating the subsequent removal of the screw.

[0057] While the friction rod 5 deburrs the screws, the subsequent screws to be tested are fed into the clamping seat 301 on the left side by the conveyor plate. After the screw burrs above are processed, the square seat 3 rotates 90 degrees in the forward direction and repeats the steps of the cylinder seat 401 and the rotary motor 402 to achieve uninterrupted deburring of the screws and improve the screw processing efficiency.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A friction-melting self-extrusion screw deburring device, comprising a worktable (1); characterized in that: The front end face of the workbench (1) is rotatably connected to a rotating shaft (2), which is connected to the output end of an external motor. A square seat (3) is fixed to the outer circumferential surface of the rotating shaft (2). Clamping seats (301) are fixed to the four end faces of the square seat (3). Each clamping seat (301) is provided with a clamping mechanism for clamping screws. The clamping seat (301) on the left side is connected to an external conveyor belt. A mounting plate (4) is fixed to the upper end face of the workbench (1). A cylinder seat (401) is fixed to the end of the mounting plate (4) away from the workbench (1). A rotary motor (402) is fixed to the telescopic end of the cylinder seat (401). A plurality of friction rods (5) for deburring screws are provided at the output end of the rotary motor (402). The clamping mechanism includes an electric telescopic rod (6) fixed to the inner wall of the clamping seat (301); a wrapping plate (7) is fixed to the end of the electric telescopic rod (6) away from the inner wall of the clamping seat (301); the wrapping plate (7) is made of rubber; and multiple arc-shaped bladders are fixed to the end face of the wrapping plate (7) near the screw. The output end of the rotary motor (402) is fixedly connected to a vertical rod (8); a plurality of friction rods (5) are fixedly connected in a circumferential array to the outer circumferential surface of the vertical rod (8); a through ring (9) is fixedly connected to the bottom of the friction rod (5), the through ring (9) is used to pass through the screw; the diameter of the through ring (9) is larger than the diameter of the friction rod (5); the plurality of friction rods (5) are designed to expand outward from top to bottom; Each of the friction rods (5) has friction patterns (501) on its outer peripheral surface; the outer peripheral surface of the friction patterns (501) has rounded corners; The outer peripheral surface of the rotary motor (402) is fixedly connected to a limiting disk (403); the lower end surface of the limiting disk (403) is fixedly connected to a shielding circular frame (10) to prevent debris from splashing. Two positioning rods (11) are fixedly connected to the outer circumferential surface of the shielding round frame (10); two positioning sleeves (12) are fixedly connected to the outer circumferential surface of the clamping seat (301) at the corresponding positions of the positioning rods (11); the positioning sleeves (12) are provided with through grooves that are adapted to the positioning rods (11), and the length of the vertical section of the positioning rods (11) and the depth of the through grooves in the positioning sleeves (12) are adapted to each other; A limiting frame (13) is fixedly connected to the outer periphery of the shielding round frame (10) away from the positioning rod (11); there are two limiting frames (13), which are symmetrically arranged relative to the shielding round frame (10); a rotating rod (14) is rotatably connected to the inner wall of the limiting frame (13); a deflection column (15) is fixedly connected to the outer periphery of the rotating rod (14); a winding ring plate (16) is fixedly connected to the bottom of the deflection column (15), and the winding ring plate (16) is made of shrinkable rubber; a contact rod (17) is fixedly connected to the upper end face of the clamping seat (301) at the corresponding position of the deflection column (15); when the deflection column (15) moves downward with the shielding round frame (10), the outer surface of the deflection column (15) will contact the top of the contact rod (17); A tightening ring (18) is fixedly connected above the winding ring plate (16). The tightening ring (18) is designed to expand outward from bottom to top. The top of the tightening ring (18) is fixedly connected to the bottom of the through ring (9). A recycling frame (101) is fixedly connected to the bottom of the workbench (1). A torsion spring (141) is provided on the inner wall of the rotating rod (14).

2. The deburring device for self-extruding screws by friction melting according to claim 1, characterized in that: The inner wall of the tightening ring (18) is provided with a negative pressure suction hole (19); the negative pressure suction hole (19) is connected to the external waste frame through a suction pipe, and the suction pipe is controlled by an external air pump.

3. The deburring device for self-extruding screws through friction melting according to claim 1, characterized in that: The inner wall of the recycling box (101) is covered with a rubber pad (102); the outer wall of the rubber pad (102) is provided with multiple friction protrusions.

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