An automatic chamfering mechanism for flat metal parts

Abstract

This invention discloses an automatic chamfering mechanism for flat metal parts, comprising a main body, which includes a workpiece, a guiding and limiting mechanism, a grinding mechanism, and a feeding mechanism. The guiding and limiting mechanism guides and limits the workpiece; the grinding mechanism performs chamfering on the workpiece; and the feeding mechanism feeds the finished workpiece into the next processing step. The workpiece is a flat cuboid metal part. Compared with the prior art, this invention achieves automatic chamfering of flat metal parts by combining the guiding and limiting mechanism, the grinding mechanism, and the feeding mechanism.

Description

Technical Field

[0001] This invention is an automatic chamfering mechanism for flat metal parts. Background Technology

[0002] Automation refers to the process by which machines, systems, or processes achieve predetermined goals through automatic detection, information processing, analysis, judgment, and control, without the direct intervention of humans or with minimal human involvement, according to human requirements. Automation technology is widely used in industry, agriculture, military, scientific research, transportation, commerce, medicine, services, and households. Adopting automation technology not only liberates people from heavy physical labor, some mental labor, and harsh or dangerous working environments, but also expands human organ functions, greatly improves labor productivity, and enhances humanity's ability to understand and transform the world. Therefore, automation is an important condition and significant indicator of the modernization of industry, agriculture, national defense, and science and technology.

[0003] With the popularization and application of automation technology, automation is widely used in more and more mechanical production and processing. Today, traditional manual and semi-automatic processing is outdated and can no longer meet current production needs. The same is true for the chamfering of flat iron. Most of the existing flat iron processing requires a lot of manual participation, which not only results in low production efficiency but also increases labor costs. Summary of the Invention:

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic chamfering mechanism for flat metal parts.

[0005] An automatic chamfering mechanism for flat metal parts includes a main body, which includes a workpiece, a guide and limiting mechanism, a grinding mechanism, and a feeding mechanism.

[0006] The aforementioned guide and limiting mechanism is used to guide and limit the workpiece.

[0007] The grinding mechanism is used to chamfer the workpiece;

[0008] The feeding mechanism is used to send the finished workpiece into the next processing step;

[0009] The processed part is a flat rectangular metal part.

[0010] Working principle: This invention uses a guide and limit mechanism to replace manual positioning, ensuring that the workpiece will not shift position during processing and thus affecting the processing effect.

[0011] In order to fully restrict the degrees of freedom of the workpiece and prevent the workpiece from shifting laterally and vertically during processing, the guide limiting mechanism includes a first guide limiting mechanism and a second guide limiting mechanism. The first guide limiting mechanism is used to limit the vertical degree of freedom of the workpiece, and the second guide limiting mechanism is used to limit the lateral degree of freedom of the workpiece.

[0012] In order to limit the vertical automation of the workpiece, the first guide limiting mechanism includes a guide column group, a pressure roller group, and a limiting wheel group;

[0013] The pressure roller assembly includes a first pressure roller assembly and a second pressure roller assembly. The first pressure roller assembly includes a first pressure roller and a second pressure roller. The second pressure roller assembly includes a third pressure roller and a fourth pressure roller. The first pressure roller is located directly above the second pressure roller, and the third pressure roller is located directly above the fourth pressure roller. The first pressure roller assembly and the second pressure roller assembly are parallel to each other and located at the same horizontal height. The first pressure roller assembly is located in front of the second pressure roller assembly. The first pressure roller, the second pressure roller, the third pressure roller, and the fourth pressure roller are all cylinders, and each cylinder has concentric through holes along its axial direction.

[0014] The guide post assembly includes a first guide post assembly and a second guide post assembly. The first guide post assembly includes a first guide post and a second guide post. The second guide post assembly includes a third guide post and a fourth guide post. The first guide post passes through the through hole of the first pressure roller. The second guide post passes through the through hole of the second pressure roller. The third guide post passes through the through hole of the third pressure roller. The fourth guide post passes through the through hole of the fourth pressure roller.

[0015] The two ends of the first guide post and the second guide post are respectively fixed to one end of the first fixing plate and the second fixing plate, and the two ends of the third guide post and the fourth guide post are respectively fixed to the other end of the first fixing plate and the second fixing plate. The first fixing plate and the second fixing plate are respectively fixed to the third fixing plate and the fourth fixing plate through a connecting assembly.

[0016] The guide post assembly is fitted with a first mounting plate and a second mounting plate that are parallel to each other and perpendicular to the guide post assembly via a linear bearing. The first mounting plate and the second mounting plate are located between the first fixing plate and the second fixing plate. The inner side of the first mounting plate is provided with a third mounting plate that is perpendicular to the first mounting plate. The inner side of the second mounting plate is provided with a fourth mounting plate that is perpendicular to the second mounting plate.

[0017] The limiting wheel assembly includes a first limiting wheel assembly and a second limiting wheel assembly. The first limiting wheel assembly includes a first limiting wheel and a second limiting wheel. The second limiting wheel assembly includes a third limiting wheel and a fourth limiting wheel. The first limiting wheel and the second limiting wheel are fixed on a third mounting plate, wherein the first limiting wheel is located above the second limiting wheel. The third limiting wheel and the fourth limiting wheel are fixed on a fourth mounting plate, wherein the third limiting wheel is located directly above the fourth limiting wheel.

[0018] The planes formed by the rotational trajectories of the pressure roller group and the limiting roller group are parallel to each other.

[0019] In order to fully restrict the lateral degree of freedom of the workpiece, the second guide limiting mechanism includes a first guide wheel group and a second guide wheel group;

[0020] The first guide wheel assembly includes a first guide wheel and a second guide wheel. A shaft is passed through the center of the first guide wheel and the second guide wheel. One end of the shaft is connected to a fifth mounting plate, and the other end of the shaft is connected to a sixth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the fifth mounting plate and the sixth mounting plate by bolts passing through the fifth mounting plate, the shaft and the sixth mounting plate in sequence.

[0021] The fifth and sixth mounting plates are fixed to the inner side of the first mounting plate. The fifth and sixth mounting plates are parallel to each other and both are perpendicular to the first mounting plate. The first guide wheel and the second guide wheel are located on both sides of the third mounting plate, and the third mounting plate is located between the fifth and sixth mounting plates.

[0022] The second guide wheel assembly includes a third guide wheel and a fourth guide wheel. A shaft is passed through the center of the third guide wheel and the fourth guide wheel. One end of the shaft is connected to the seventh mounting plate, and the other end of the shaft is connected to the eighth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the seventh mounting plate and the eighth mounting plate by bolts passing through the seventh mounting plate, the shaft and the eighth mounting plate in sequence.

[0023] The seventh and eighth mounting plates are fixed to the inner side of the first mounting plate. The seventh and eighth mounting plates are parallel to each other and both are perpendicular to the first mounting plate. The third and fourth guide wheels are located on both sides of the third mounting plate, and the fourth mounting plate is located between the seventh and eighth mounting plates.

[0024] To prevent the pressure rollers from shifting during processing and causing the workpiece to shift position, a first limiting block and a second limiting block are respectively provided on both sides of the first pressure roller group and the second pressure roller. The first limiting block and the second limiting block are fixedly sleeved on the guide column group.

[0025] In order to prevent the workpiece from shifting due to vertical displacement of the guide wheels during the processing, a first stop block and a second stop block are respectively provided above and below the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel, and the stop blocks are sleeved on the shaft.

[0026] To ensure stable chamfering of the workpiece, the grinding mechanism includes a first scraper and a second scraper. Both the first and second scrapers include an upper scraper and a lower scraper, and the cross-sections of the upper and lower scrapers are circular. The upper scraper is located directly above the lower scraper. The first scraper is mounted on the third mounting plate and located behind the first limit wheel assembly. The second scraper is mounted on the fourth mounting plate and located behind the second limit wheel assembly.

[0027] To ensure the mounting plates are securely connected and will not fall off, the fifth and seventh mounting plates are connected by a connecting plate, and the sixth and eighth mounting plates are connected by a connecting plate.

[0028] In order for the entire mechanism to swing up and down with the workpiece during processing, the connecting assembly includes two connecting columns and two tension springs. One end of the two connecting columns is connected to the front end of the first fixed plate and the second fixed plate, respectively, and the other end of the two connecting columns is connected to the front end of the third fixed plate and the fourth fixed plate, respectively. One end of the two springs is connected to the rear end of the first fixed plate and the second fixed plate, respectively, and the other end of the two springs is connected to the rear end of the third fixed plate and the fourth fixed plate, respectively.

[0029] In order to smoothly feed the finished workpiece into the next processing step, the gift-giving mechanism includes a fifth fixed plate, a sixth fixed plate, and multiple rollers. One end of the fifth fixed plate is connected to the rear end of the third fixed plate, and one end of the sixth fixed plate is connected to the rear end of the fourth fixed plate. The other ends of the fifth and sixth fixed plates are connected by a connecting plate. Multiple rollers are provided between the fifth and sixth fixed plates. One end of each roller is movably inserted through the fifth fixed plate, and the other end of each roller is movably inserted through the sixth fixed plate.

[0030] Beneficial effects: Compared with the prior art, the present invention achieves automatic chamfering of flat metal parts by combining the guiding and limiting mechanism, the grinding mechanism and the feeding mechanism.

[0031] This invention limits the lateral and vertical degrees of freedom of the workpiece through a first guide limiting mechanism and a second guide limiting mechanism, respectively. The first limiting mechanism includes a pressure roller group and a limiting roller group. The pressure roller group includes a first pressure roller group and a second pressure roller group. Each pressure roller group includes two pressure rollers, which are placed parallel to each other. The first pressure roller group is located at the front of the overall mechanism, and the second pressure roller group is located at the back of the overall mechanism. The limiting roller group is located in the middle of the overall mechanism. By limiting the three positions of the workpiece, it is ensured that the workpiece will not deviate vertically during the processing.

[0032] In addition, the second guide limiting mechanism includes a first guide wheel group and a second guide wheel group. The first guide wheel group and the second guide wheel group are symmetrically arranged on both sides of the workpiece processing position, and each group has two guide wheels. The guide wheels are also spaced apart by a certain distance. When the workpiece moves in it, there are two contact points between the two sides of the workpiece and each guide wheel group. If there is only one contact point, the workpiece may rotate. This ensures that the workpiece will not shift laterally during the processing.

[0033] Meanwhile, the third fixing plate is connected and fixed to the first fixing plate, the fourth fixing plate and the second fixing plate through connecting columns and springs. The spring mechanism can swing with the up and down swing of the workpiece, which can prevent the workpiece from bending and deforming due to different heights when it enters the feeding mechanism. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of an automatic chamfering mechanism for flat metal parts;

[0035] Figure 2 This is a partial schematic diagram of an automatic chamfering mechanism for flat metal parts;

[0036] In the diagram, 1. Third fixing plate, 2. Connecting column, 3. Second guide column, 4. First guide column, 5. First fixing plate, 6. Spring, 7. Fourth guide column, 8. Third guide column, 9. Seventh fixing plate, 10. Roller, 11. Connecting plate, 12. Processed part, 13. Eighth fixing plate, 14. Fourth fixing plate, 15. Second fixing plate, 16. Second mounting plate, 17. Linear bearing, 18. Limiting block, 19. First mounting plate, 20. First pressure roller group, 21. Limiting roller group, 22. Guide roller group, 23. Second pressure roller group. Detailed Implementation

[0037] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0038] like Figure 1-2As shown, the components are: third fixed plate 1, connecting column 2, second guide column 3, first guide column 4, first fixed plate 5, spring 6, fourth guide column 7, third guide column 8, seventh fixed plate 9, roller 10, connecting plate 11, processed part 12, eighth fixed plate 13, fourth fixed plate 14, second fixed plate 15, second mounting plate 16, linear bearing 17, limiting block 18, first mounting plate 19, first pressure roller group 20, limiting roller group 21, guide roller group 22, and second pressure roller group 23.

[0039] Third fixing plate 1, connecting column 2, second guide column 3, first guide column 4, first fixing plate 5, spring 6, fourth guide column 7, third guide column 8, seventh fixing plate 9, roller 10, connecting plate 11, machined part 12, eighth fixing plate 13, fourth fixing plate 14, second fixing plate 15, second mounting plate 16, linear bearing 17, limiting block 18, first mounting plate 19, first pressure roller group 20, limiting roller group 21, guide roller group 22, second pressure roller group 23

[0040] An automatic chamfering mechanism for flat metal parts includes a main body, which includes a processing part 12, a guide and limiting mechanism, a grinding mechanism and a feeding mechanism;

[0041] The guide and limiting mechanism is used to guide and limit the workpiece 12.

[0042] The grinding mechanism is used to chamfer the workpiece 12;

[0043] The feeding mechanism is used to send the finished workpiece 12 into the next processing step;

[0044] The processed part 12 is a flat rectangular metal part.

[0045] In this embodiment, the guide limiting mechanism includes a first guide limiting mechanism and a second guide limiting mechanism. The first guide limiting mechanism is used to limit the vertical degree of freedom of the workpiece 12, and the second guide limiting mechanism is used to limit the lateral degree of freedom of the workpiece 12.

[0046] In this embodiment, the first guide limiting mechanism includes a guide post assembly, a pressure roller assembly, and a limiting roller assembly 21;

[0047] The pressure roller assembly includes a first pressure roller assembly 20 and a second pressure roller assembly 23. The first pressure roller assembly 20 includes a first pressure roller and a second pressure roller, and the second pressure roller assembly 23 includes a third pressure roller and a fourth pressure roller. The first pressure roller is located directly above the second pressure roller, and the third pressure roller is located directly above the fourth pressure roller. The first pressure roller assembly 20 and the second pressure roller assembly 23 are parallel to each other and located at the same horizontal height. The first pressure roller assembly 20 is located in front of the second pressure roller assembly 23. The first pressure roller, the second pressure roller, the third pressure roller, and the fourth pressure roller are all cylinders, and each cylinder has concentric through holes along its axial direction.

[0048] The guide post assembly includes a first guide post 4 group and a second guide post 3 group. The first guide post 4 group includes a first guide post 4 and a second guide post 3. The second guide post 3 group includes a third guide post 8 and a fourth guide post 7. The first guide post 4 passes through the through hole of the first pressure roller. The second guide post 3 passes through the through hole of the second pressure roller. The third guide post 8 passes through the through hole of the third pressure roller. The fourth guide post 7 passes through the through hole of the fourth pressure roller.

[0049] The two ends of the first guide post 4 and the second guide post 3 are respectively fixed to one end of the first fixing plate 5 and the second fixing plate 15, and the two ends of the third guide post 8 and the fourth guide post 7 are respectively fixed to the other end of the first fixing plate 5 and the second fixing plate 15. The first fixing plate 5 and the second fixing plate 15 are respectively fixed to the third fixing plate 1 and the fourth fixing plate 14 through connecting components.

[0050] The guide post assembly is fitted with a first mounting plate 19 and a second mounting plate 16 that are parallel to each other and perpendicular to the guide post assembly via a linear bearing 17. The first mounting plate 19 and the second mounting plate 16 are located between the first fixing plate 5 and the second fixing plate 15. The inner side of the first mounting plate 19 is provided with a third mounting plate that is perpendicular to the first mounting plate 19. The inner side of the second mounting plate 16 is provided with a fourth mounting plate that is perpendicular to the second mounting plate 16.

[0051] The limiting wheel assembly 21 includes a first limiting wheel assembly 21 and a second limiting wheel assembly 21. The first limiting wheel assembly 21 includes a first limiting wheel and a second limiting wheel. The second limiting wheel assembly 21 includes a third limiting wheel and a fourth limiting wheel. The first limiting wheel and the second limiting wheel are fixed on a third mounting plate, wherein the first limiting wheel is located above the second limiting wheel. The third limiting wheel and the fourth limiting wheel are fixed on a fourth mounting plate, wherein the third limiting wheel is located directly above the fourth limiting wheel.

[0052] The planes formed by the rotational trajectories of the pressure roller group and the limiting roller group 21 are parallel to each other.

[0053] In this embodiment, the second guide limiting mechanism includes a first guide wheel group 22 and a second guide wheel group 22;

[0054] The first guide wheel assembly 22 includes a first guide wheel and a second guide wheel. A shaft is passed through the center of the first guide wheel and the second guide wheel. One end of the shaft is connected to the fifth mounting plate, and the other end of the shaft is connected to the sixth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the fifth mounting plate and the sixth mounting plate by bolts passing through the fifth mounting plate, the shaft and the sixth mounting plate in sequence.

[0055] The fifth and sixth mounting plates are fixed to the inner side of the first mounting plate 19. The fifth and sixth mounting plates are parallel to each other and both are perpendicular to the first mounting plate 19. The first guide wheel and the second guide wheel are located on both sides of the third mounting plate, and the third mounting plate is located between the fifth and sixth mounting plates.

[0056] The second guide wheel assembly 22 includes a third guide wheel and a fourth guide wheel. A shaft is passed through the center of the third guide wheel and the fourth guide wheel. One end of the shaft is connected to the seventh mounting plate, and the other end of the shaft is connected to the eighth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the seventh mounting plate and the eighth mounting plate by bolts passing through the seventh mounting plate, the shaft and the eighth mounting plate in sequence.

[0057] The seventh and eighth mounting plates are fixed to the inner side of the first mounting plate 19. The seventh and eighth mounting plates are parallel to each other and both are perpendicular to the first mounting plate 19. The third and fourth guide wheels are located on both sides of the third mounting plate, and the fourth mounting plate is located between the seventh and eighth mounting plates.

[0058] In this embodiment, the first pressure roller group 20 and the second pressure roller are respectively provided with a first limiting block 18 and a second limiting block 18 on both sides, and the first limiting block 18 and the second limiting block 18 are fixedly sleeved on the guide column group.

[0059] In this embodiment, the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel are respectively provided with a first stop block and a second stop block above and below them, and the stop blocks are sleeved on the shaft.

[0060] In this embodiment, the grinding mechanism includes a first scraper and a second scraper. Both the first scraper and the second scraper include an upper scraper and a lower scraper. The cross-sections of the upper scraper and the lower scraper are circular. The upper scraper is located directly above the lower scraper. The first scraper is mounted on the third mounting plate and is located behind the first limiting wheel group 21. The second scraper is mounted on the fourth mounting plate and is located behind the second limiting wheel group 21.

[0061] In this embodiment, the fifth mounting plate and the seventh mounting plate are connected by a connecting plate 11, and the sixth mounting plate and the eighth mounting plate are connected by a connecting plate 11.

[0062] In this embodiment, the connecting assembly includes two connecting posts 2 and two tension springs. One end of the two connecting posts 2 is connected to the front end of the first fixing plate 5 and the second fixing plate 15, respectively, and the other end of the two connecting posts 2 is connected to the front end of the third fixing plate 1 and the fourth fixing plate 14, respectively. One end of the two springs 6 is connected to the rear end of the first fixing plate 5 and the second fixing plate 15, respectively, and the other end of the two springs 6 is connected to the rear end of the third fixing plate 1 and the fourth fixing plate 14, respectively.

[0063] In this embodiment, the gift-giving mechanism includes a fifth fixed plate 9, a sixth fixed plate 13, and a plurality of rollers 10. One end of the fifth fixed plate 9 is connected to the rear end of the third fixed plate 1, and one end of the sixth fixed plate 13 is connected to the rear end of the fourth fixed plate 14. The other ends of the fifth fixed plate 9 and the sixth fixed plate 13 are connected by a connecting plate 11. A plurality of rollers 10 are provided between the fifth and sixth fixed plates 13. One end of each roller 10 is movably inserted into the fifth fixed plate 9, and the other end of each roller 10 is movably inserted into the sixth fixed plate 13.

[0064] Usage: The workpiece 12 passes between the first pressure roller and the second pressure roller, then between the first guide roller and the third guide roller, and arrives at the limiting wheel group 21. At the same time, the two sides of the workpiece 12 are chamfered by scrapers. After passing between the second guide roller and the fourth guide roller, it finally exits between the third pressure roller and the fourth pressure roller and is fed into the next processing step by the feeding mechanism. This process is repeated.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic chamfering mechanism for flat metal pieces, comprising a main body, characterized in that, The main components include a guide and limit mechanism, a grinding mechanism, and a feeding mechanism; The aforementioned guide and limiting mechanism is used to guide and limit the workpiece. The grinding mechanism is used to chamfer the workpiece; The feeding mechanism is used to send the finished workpiece into the next processing step; The processed part is a flat rectangular metal part; The guide limiting mechanism includes a first guide limiting mechanism and a second guide limiting mechanism. The first guide limiting mechanism is used to limit the vertical degree of freedom of the workpiece, and the second guide limiting mechanism is used to limit the lateral degree of freedom of the workpiece. The first guide and limiting mechanism includes a guide column assembly, a pressure roller assembly, and a limiting roller assembly; The pressure roller assembly includes a first pressure roller assembly and a second pressure roller assembly. The first pressure roller assembly includes a first pressure roller and a second pressure roller. The second pressure roller assembly includes a third pressure roller and a fourth pressure roller. The first pressure roller is located directly above the second pressure roller, and the third pressure roller is located directly above the fourth pressure roller. The first pressure roller assembly and the second pressure roller assembly are parallel to each other and located at the same horizontal height. The first pressure roller assembly is located in front of the second pressure roller assembly. The first pressure roller, the second pressure roller, the third pressure roller, and the fourth pressure roller are all cylinders, and each cylinder has concentric through holes along its axial direction. The guide post assembly includes a first guide post assembly and a second guide post assembly. The first guide post assembly includes a first guide post and a second guide post. The second guide post assembly includes a third guide post and a fourth guide post. The first guide post passes through the through hole of the first pressure roller. The second guide post passes through the through hole of the second pressure roller. The third guide post passes through the through hole of the third pressure roller. The fourth guide post passes through the through hole of the fourth pressure roller. The two ends of the first guide post and the second guide post are respectively fixed to one end of the first fixing plate and the second fixing plate, and the two ends of the third guide post and the fourth guide post are respectively fixed to the other end of the first fixing plate and the second fixing plate. The first fixing plate and the second fixing plate are respectively fixed to the third fixing plate and the fourth fixing plate through a connecting assembly. The guide post assembly is fitted with a first mounting plate and a second mounting plate that are parallel to each other and perpendicular to the guide post assembly via a linear bearing. The first mounting plate and the second mounting plate are located between the first fixing plate and the second fixing plate. The inner side of the first mounting plate is provided with a third mounting plate that is perpendicular to the first mounting plate. The inner side of the second mounting plate is provided with a fourth mounting plate that is perpendicular to the second mounting plate. The limiting wheel assembly includes a first limiting wheel assembly and a second limiting wheel assembly. The first limiting wheel assembly includes a first limiting wheel and a second limiting wheel. The second limiting wheel assembly includes a third limiting wheel and a fourth limiting wheel. The first limiting wheel and the second limiting wheel are fixed on a third mounting plate, wherein the first limiting wheel is located above the second limiting wheel. The third limiting wheel and the fourth limiting wheel are fixed on a fourth mounting plate, wherein the third limiting wheel is located directly above the fourth limiting wheel. The planes formed by the rotational trajectories of the pressure roller group and the limiting roller group are parallel to each other; The second guide limiting mechanism includes a first guide wheel assembly and a second guide wheel assembly; The first guide wheel assembly includes a first guide wheel and a second guide wheel. A shaft is passed through the center of the first guide wheel and the second guide wheel. One end of the shaft is connected to a fifth mounting plate, and the other end of the shaft is connected to a sixth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the fifth mounting plate and the sixth mounting plate by bolts passing through the fifth mounting plate, the shaft and the sixth mounting plate in sequence. The fifth and sixth mounting plates are fixed to the inner side of the first mounting plate. The fifth and sixth mounting plates are parallel to each other and both are perpendicular to the first mounting plate. The first guide wheel and the second guide wheel are located on both sides of the third mounting plate, and the third mounting plate is located between the fifth and sixth mounting plates. The second guide wheel assembly includes a third guide wheel and a fourth guide wheel. A shaft is passed through the center of the third guide wheel and the fourth guide wheel. One end of the shaft is connected to the seventh mounting plate, and the other end of the shaft is connected to the eighth mounting plate. A through hole is provided in the center of the shaft. The shaft is fixed between the seventh mounting plate and the eighth mounting plate by bolts passing through the seventh mounting plate, the shaft and the eighth mounting plate in sequence. The seventh and eighth mounting plates are fixed to the inner side of the first mounting plate. The seventh and eighth mounting plates are parallel to each other and both are perpendicular to the first mounting plate. The third and fourth guide wheels are located on both sides of the third mounting plate, and the fourth mounting plate is located between the seventh and eighth mounting plates.

2. The automatic chamfering mechanism for flat metal pieces according to claim 1, characterized in that, The first pressure roller group and the second pressure roller group are respectively provided with a first limiting block and a second limiting block on both sides, and the first limiting block and the second limiting block are fixedly sleeved on the guide column group.

3. The automatic chamfering mechanism for flat metal pieces according to claim 1, characterized in that, The first guide wheel, the second guide wheel, the third guide wheel, and the fourth guide wheel are each provided with a first stop block and a second stop block above and below them, respectively, and the stop blocks are sleeved on the shaft.

4. The automatic chamfering mechanism for flat metal parts according to claim 1, characterized in that, The grinding mechanism includes a first scraper and a second scraper. Both the first scraper and the second scraper include an upper scraper and a lower scraper. The cross-section of the upper scraper and the lower scraper is circular. The upper scraper is located directly above the lower scraper. The first scraper is mounted on a third mounting plate and is located behind the first limit wheel assembly. The second scraper is mounted on a fourth mounting plate and is located behind the second limit wheel assembly.

5. An automatic chamfering mechanism for flat metal parts according to claim 1, characterized in that, The fifth and seventh mounting plates are connected by a connecting plate, and the sixth and eighth mounting plates are connected by a connecting plate.

6. An automatic chamfering mechanism for flat metal parts according to claim 1, characterized in that, The connecting assembly includes two connecting posts and two tension springs. One end of each of the two connecting posts is connected to the front end of the first fixing plate and the second fixing plate, respectively, and the other end of each of the two connecting posts is connected to the front end of the third fixing plate and the fourth fixing plate, respectively. One end of each of the two tension springs is connected to the rear end of the first fixing plate and the second fixing plate, respectively, and the other end of each of the two tension springs is connected to the rear end of the third fixing plate and the fourth fixing plate, respectively.

7. An automatic chamfering mechanism for flat metal parts according to claim 1, characterized in that, The feeding mechanism includes a fifth fixed plate, a sixth fixed plate, and multiple rollers. One end of the fifth fixed plate is connected to the rear end of the third fixed plate, and one end of the sixth fixed plate is connected to the rear end of the fourth fixed plate. The other ends of the fifth and sixth fixed plates are connected by a connecting plate. Multiple rollers are provided between the fifth and sixth fixed plates. One end of each roller is movably inserted through the fifth fixed plate, and the other end of each roller is movably inserted through the sixth fixed plate.

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