Chamfering device and chamfering method for fastener production

Abstract

The present invention relates to the technical field of chamfering devices, specifically to a chamfering device for fastener production and a chamfering method thereof, comprising a fixing frame, an inner side of the fixing frame is provided with a hexagon socket screw, an outer side of the inner hexagon socket screw of the fixing frame is provided with a clamping structure, a cylinder is installed on one side of the fixing frame, an output shaft of the cylinder is fixedly connected to the mounting frame, a first motor is installed on the inner side of the mounting frame, an output shaft of the first motor is fixedly connected to a grinding shaft, chamfering structures are provided on both sides of the mounting frame, the chamfering structure includes a mounting sleeve, a cleaning structure is provided on the outer side of the mounting sleeve, the head position of the hexagon socket screw can be chamfered by the mutual cooperation of the first discharge pipe and the chamfering rod, the assembly hole of the hexagon socket screw can be chamfered by the mutual cooperation of the grinding shaft and the second guide groove, and the second guide groove is used to clean small burrs inside the assembly hole.

Description

Technical Field

[0001] The present invention relates to the technical field of chamfering devices, in particular to a chamfering device for fastener production and a chamfering method thereof. Background Art

[0002] Hexagon socket screws are a commonly used fastener widely used in various fields. Common fasteners include bolts, studs, screws, nuts, washers, pins, etc. In the production of fasteners, such as bolt production, screw production, pin production, etc., the fasteners need to be chamfered.

[0003] When processing existing hexagon socket screws, tiny burrs will be left inside and outside the internal hexagonal assembly hole. The presence of burrs will affect the use of the screw and greatly affect the assembly effect. When milling chamfers, the high temperature generated by friction will cause the screw to deform. Metal particles generated after chamfering will remain in the assembly hole and outside of the screw, and friction will remove the oxide layer on the outside of the screw, causing the screw to come into contact with humid air and rust. To this end, we propose a chamfering device and chamfering method for fastener production. Summary of the Invention

[0004] In order to remedy the deficiencies of the prior art and solve at least one of the technical problems raised in the background art, the present invention provides a chamfering device and a chamfering method for fastener production.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a chamfering device for fastener production, comprising a fixed frame, an inner side of the fixed frame is provided with a hexagon socket screw, the outside of the inner hexagon socket screw of the fixed frame is provided with a clamping structure, a cylinder is installed on one side of the fixed frame, the output shaft of the cylinder is fixedly connected to the mounting frame, a first motor is installed on the inner side of the mounting frame, the output shaft of the first motor is fixedly connected to the grinding shaft, multiple groups of second guide grooves are provided on the outer side of the grinding shaft, chamfering structures are provided on both sides of the mounting frame, the chamfering structure includes a mounting sleeve, and a cleaning structure is provided on the outer side of the mounting sleeve.

[0006] Preferably, the chamfer structure includes two groups of first fixing rods fixedly connected to the mounting frame, the lower ends of the two groups of first fixing rods are commonly fixedly connected to a fixing annular plate, the upper and lower ends of the fixing annular plate are provided with sliding grooves, the inner wall of the fixing annular plate is fixedly connected to multiple groups of first protrusions, the outer side of the first protrusion is slidably connected to the second protrusion, the other side of the second protrusion is fixedly connected to the slider, the other side of the slider is slidably connected to the output shaft of the first electric telescopic rod, the outer shell of the first electric telescopic rod is fixedly connected to the mounting sleeve, the inner side of the mounting sleeve is fixedly connected to the output shaft of the first motor, a first spring is provided on the inner side of the slider, one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the output shaft of the first electric telescopic rod.

[0007] Preferably, the lower end of the slider is fixedly connected to a fixing plate, one side of the fixing plate is fixedly connected to an oil tank, and the other side of the oil tank is rotatably connected to the output shaft of the first motor through a sleeve, the inner side of the oil tank is fixedly connected to a fixing sleeve, the outer side of the fixing sleeve is provided with a second feeding hole, the inner side of the fixing sleeve is rotatably connected to the first discharge pipe, the first discharge pipe is hollowed out, a first feeding hole is provided on the outer side of the first discharge pipe near the upper end, a discharge hole is provided on the outer side of the first discharge pipe near the lower end, a blade is fixedly connected to the outer side of the first discharge pipe, the upper end of the first discharge pipe is fixedly connected to a first gear, the outer side of the first gear is rotatably connected to a first synchronous belt, the first synchronous belt has a certain elasticity, the inner side of the first synchronous belt is rotatably connected to the second gear, and the inner side of the second gear is fixedly connected to the output shaft of the first motor.

[0008] Preferably, a C-shaped bracket is fixedly connected to the lower end of the fixing plate, and two groups of symmetrical frosting sheets are fixedly connected to both sides of the C-shaped bracket.

[0009] Preferably, the inner side of the fixed plate is rotatably connected to a chamfered rod via a rotating shaft, a plurality of first guide grooves are provided on the outer side of the chamfered rod, and the upper end of the chamfered rod is fixedly connected to the first discharge pipe via a rotating shaft.

[0010] Preferably, the cleaning structure includes a second fixed rod fixedly connected to the mounting sleeve, the other end of the second fixed rod is fixedly connected to an air pump, one side of the air pump is fixedly connected to two groups of symmetrical fixed blocks, and spherical rollers are installed on the side close to each other of the two groups of fixed blocks, and the two groups of spherical rollers slide on the inner sides of the two groups of slide grooves respectively.

[0011] Preferably, a fourth electric telescopic rod is installed at the lower end of the air pump, the output shaft of the fourth electric telescopic rod is fixedly connected to a mounting plate, a second motor is installed on one side of the mounting plate, and a fourth gear is rotatably connected to the other side of the mounting plate, the output shaft of the second motor is fixedly connected to the fourth gear, and the other end of the fourth gear is fixedly connected to a cleaning plate.

[0012] Preferably, the outer side of the fourth gear is rotatably connected to the second synchronous belt, the inner side of the second synchronous belt is rotatably connected to the third gear, one end of the third gear is rotatably connected to the mounting plate through a rotating shaft, the other end of the third gear is fixedly connected to the first cleaning roller brush, an exhaust hole is provided on the outer side of the first cleaning roller brush, the outer side of the first cleaning roller brush is rotatably connected to a sliding sleeve, the inner side of the sliding sleeve is slidably connected to the second cleaning roller brush, an exhaust hole is provided on the outer side of the second cleaning roller brush, a circular limiting plate is fixedly connected to the outer side of the second cleaning roller brush, the outer side of the sliding sleeve is fixedly connected to an exhaust hose, the outer side of the exhaust hose passes through the mounting plate, the other end of the exhaust hose is fixedly connected to the output port of the air pump, a third electric telescopic rod is installed on the inner side of the first cleaning roller brush, and the output shaft of the third electric telescopic rod is fixedly connected to the second cleaning roller brush.

[0013] Preferably, the clamping structure includes two groups of second electric telescopic rods installed on the fixed frame, the output shafts of the two groups of second electric telescopic rods are commonly fixedly connected to an annular top plate, the upper end of the annular top plate is fixedly connected to a rubber pad, and the outer sides of the two groups of second electric telescopic rods are commonly provided with a third spring, one end of the third spring is fixedly connected to the annular top plate, and the other end of the third spring is fixedly connected to the fixed frame.

[0014] A method for using a chamfering device for fastener production, applicable to the above-mentioned chamfering device for fastener production, comprises the following steps:

[0015] S1, install the fastener on the inner side of the fixed frame and fix its position by the clamping structure;

[0016] S2, starting the cylinder to drive the first motor downward, so that the grinding shaft chamfers the assembly hole of the fastener, and the chamfering structure chamfers the periphery of the fastener head;

[0017] S3, after chamfering is completed, the fastener head and assembly hole are cleaned through the cleaning structure.

[0018] Compared with the prior art, the present invention provides a chamfering device and a chamfering method for fastener production, which have the following beneficial effects:

[0019] 1. Through the cooperation between the first discharge tube and the chamfering rod, the head position of the hexagon socket screw can be chamfered. Through the cooperation between the grinding shaft and the second guide groove, the assembly hole of the hexagon socket screw can be chamfered, and the second guide groove is used to clean the small burrs inside the assembly hole. The end of the screw after chamfering forms a bevel, which can be more easily aligned and screwed into the threaded hole, reducing the resistance during installation. The chamfering treatment not only improves the convenience and efficiency of installation, but also enhances the strength, durability and aesthetics of the screw, while reducing the risk of damage during installation and use.

[0020] 2. Through the cooperation between the first discharge pipe and the fixed sleeve, the first discharge pipe can output lubricating oil outward through the discharge hole when it rotates, and the centrifugal force during rotation makes the outer sides of the chamfering rod and the grinding shaft stick to the lubricating oil. The lubricating oil can reduce the friction between the chamfering rod, the grinding shaft and the hexagon socket screw, thereby reducing the heat generated during the processing and preventing the tool and workpiece from overheating. The lubricating oil helps to obtain a smoother processed surface, reduce burrs and roughness, improve the quality of chamfering, significantly improve the processing quality, efficiency and tool life, and reduce damage to the workpiece and tool.

[0021] 3. Through the cooperation of the fourth gear and the cleaning plate, the cleaning plate can clean the lower area after chamfering. Through the cooperation of the third gear and the third electric telescopic rod, the inside of the assembly hole of the hexagon socket screw and the upper chamfered area can be cleaned, so that the outside of the hexagon socket screw is kept clean. Through the cooperation of the exhaust hose and the sliding sleeve, air flow can be output to the chamfered area to remove particles remaining due to friction and cool the hexagon socket screw after chamfering, thereby improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a chamfering device for fastener production proposed by the present invention;

[0023] Figure 2 This is an enlarged schematic diagram of the overall structure of the chamfering structure and cleaning structure of a chamfering device for fastener production proposed by the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of the overall structure of a chamfering structure of a chamfering device for fastener production proposed by the present invention;

[0025] Figure 4 A chamfering device for fastener production proposed by the present invention Figure 3 A schematic diagram of the structure of part A in the middle;

[0026] Figure 5 A chamfering device for fastener production proposed by the present invention Figure 3 A magnified schematic diagram of the structure of part B;

[0027] Figure 6 This is a schematic cross-sectional view of the overall structure of a cleaning structure of a chamfering device for fastener production proposed by the present invention;

[0028] Figure 7 This is a schematic cross-sectional view of the cleaning structure of a chamfering device for fastener production proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the overall structure of the clamping structure of a chamfering device for fastener production proposed by the present invention.

[0030] In the figure: 1. fixed frame; 2. cylinder; 3. mounting frame; 4. first motor; 5. grinding shaft; 6. chamfering structure; 61. first fixed rod; 62. fixed annular plate; 63. first protrusion; 64. chute; 65. mounting sleeve; 66. first electric telescopic rod; 67. slider; 68. second protrusion; 69. first spring; 610. fixed plate; 611. oil tank; 612. first discharge pipe; 613. first feed hole; 614. first gear; 615. first synchronous belt; 616. second gear; 617. fixed sleeve; 618. second feed hole; 619. blade; 620. discharge hole; 621. chamfering rod; 622. first guide Flow trough; 623, C-shaped bracket; 624, frosting sheet; 7, hexagon socket screw; 8, clamping structure; 81, second electric telescopic rod; 82, annular top plate; 83, rubber pad; 84, third spring; 9, cleaning structure; 91, second fixing rod; 92, air pump; 93, fixing block; 94, spherical roller; 95, mounting plate; 96, third gear; 97, first cleaning roller brush; 98, sliding sleeve; 99, exhaust hose; 910, second cleaning roller brush; 911, second synchronous belt; 912, fourth gear; 913, second motor; 914, third electric telescopic rod; 915, cleaning plate; 916, fourth electric telescopic rod; 10, second guide trough. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] See also Figure 1 - Figure 8A chamfering device for fastener production includes a fixed frame 1, an inner side of the fixed frame 1 is provided with a hexagon socket screw 7, the outside of the inner side of the hexagon socket screw 7 of the fixed frame 1 is provided with a clamping structure 8, a cylinder 2 is installed on one side of the fixed frame 1, the output shaft of the cylinder 2 is fixedly connected to the mounting frame 3, a first motor 4 is installed on the inner side of the mounting frame 3, the output shaft of the first motor 4 is fixedly connected to the grinding shaft 5, and multiple groups of second guide grooves 10 are provided on the outer side of the grinding shaft 5, chamfering structures 6 are provided on both sides of the mounting frame 3, the chamfering structure 6 includes a mounting sleeve 65, and a cleaning structure 9 is provided on the outer side of the mounting sleeve 65.

[0033] In this embodiment, the chamfering structure 6 includes two groups of first fixing rods 61 fixedly connected to the mounting frame 3, and the lower ends of the two groups of first fixing rods 61 are commonly fixedly connected to a fixed annular plate 62, and a sliding groove 64 is provided at the upper and lower ends of the fixed annular plate 62. The inner wall of the fixed annular plate 62 is fixedly connected to multiple groups of first protrusions 63, and the outer side of the first protrusion 63 is slidably connected to the second protrusion 68, and the other side of the second protrusion 68 is fixedly connected to a slider 67, and the other side of the slider 67 is slidably connected to the output shaft of the first electric telescopic rod 66. The outer shell of the first electric telescopic rod 66 is fixedly connected to a mounting sleeve 65, and the inner side of the mounting sleeve 65 is fixedly connected to the output shaft of the first motor 4. A first spring 69 is provided on the inner side of the slider 67, and one end of the first spring 69 is fixedly connected to the slider 67, and the other end of the first spring 69 is fixedly connected to the output shaft of the first electric telescopic rod 66.

[0034] Specifically, the first fixing rod 61 is used to fix the connection between the annular plate 62 and the mounting frame 3, the slide groove 64 is used for the sliding of the spherical roller 94, so that the cleaning structure 9 maintains balance, and the output shaft of the first motor 4 drives the first electric telescopic rod 66 to rotate through the mounting sleeve 65, and the first electric telescopic rod 66 drives the slider 67 to rotate through the output shaft, and the slider 67 drives the oil tank 611 to rotate inside the fixed annular plate 62 through the fixing plate 610. When the second protrusion 68 follows the rotation of the slider 67, the second protrusion 68 will contact the first protrusion 63 and slide the slider 67 to the other side through the protrusion of the first protrusion 63, and then reset again through the tension of the first spring 69, so that the C-shaped bracket 623 is slightly shaken by the mutual cooperation between the second protrusion 68 and the first protrusion 63, so that the grinding sheet 624 rubs the chamfered areas at the upper and lower ends of the head of the hexagon socket screw 7 without affecting the transmission of the first electric telescopic rod 66.

[0035] In this embodiment, the lower end of the slider 67 is fixedly connected to a fixed plate 610, one side of the fixed plate 610 is fixedly connected to an oil tank 611, the other side of the oil tank 611 is rotatably connected to the output shaft of the first motor 4 through a sleeve, the inner side of the oil tank 611 is fixedly connected to a fixed sleeve 617, the outer side of the fixed sleeve 617 is provided with a second feed hole 618, the inner side of the fixed sleeve 617 is rotatably connected to the first discharge pipe 612, the first discharge pipe 612 is hollowed out, and the outer side of the first discharge pipe 612 is provided near the upper end. There is a first feed hole 613, and a discharge hole 620 is opened on the outer side of the first discharge pipe 612 near the lower end. The outer side of the first discharge pipe 612 is fixedly connected to a blade 619, and the upper end of the first discharge pipe 612 is fixedly connected to a first gear 614. The outer side of the first gear 614 is rotatably connected to a first synchronous belt 615, and the first synchronous belt 615 has a certain degree of elasticity. The inner side of the first synchronous belt 615 is rotatably connected to a second gear 616, and the inner side of the second gear 616 is fixedly connected to the output shaft of the first motor 4.

[0036] Specifically, the fixed plate 610 is used to install the oil tank 611, and the oil tank 611 is rotatably connected to the output shaft of the first motor 4 through a sleeve to keep itself balanced. The fixed sleeve 617 can control the feeding and closing of the first discharge pipe 612 when the first discharge pipe 612 rotates. The first discharge pipe 612 is a hollow design to allow the lubricating oil to be output, and can also be connected to the first gear 614 as a rotating shaft, so that the second gear 616 follows the rotation of the first motor 4 and drives the first gear 614 to rotate through the first synchronous belt 615, so that the first feed hole 613 on the outside of the first discharge pipe 612 coincides with the second feed hole 618, so that the lubricating oil flows into the first discharge pipe 612 and then flows out through the discharge hole 620. The blade 619 rotates with the first discharge pipe 612 to stir the lubricating oil in the oil tank 611.

[0037] In this embodiment, a C-shaped bracket 623 is fixedly connected to the lower end of the fixing plate 610 , and two sets of symmetrical frosting sheets 624 are fixedly connected to both sides of the C-shaped bracket 623 .

[0038] Specifically, when the C-shaped bracket 623 rotates along with the fixing plate 610 , the grinding sheet 624 is used to perform chamfering on the head of the hexagon socket screw 7 .

[0039] In this embodiment, the inner side of the fixed plate 610 is rotatably connected to a chamfered rod 621 via a rotating shaft, and multiple groups of first guide grooves 622 are opened on the outer side of the chamfered rod 621. The upper end of the chamfered rod 621 is fixedly connected to the first discharge pipe 612 via a rotating shaft.

[0040] Specifically, when the first discharge pipe 612 rotates, the chamfering rod 621 is driven to rotate, thereby chamfering the head of the hexagon socket screw 7 .

[0041] In this embodiment, the cleaning structure 9 includes a second fixed rod 91 fixedly connected to the mounting sleeve 65, and the other end of the second fixed rod 91 is fixedly connected to an air pump 92. One side of the air pump 92 is fixedly connected to two groups of symmetrical fixed blocks 93. Spherical rollers 94 are installed on the side close to each other of the two groups of fixed blocks 93, and the two groups of spherical rollers 94 slide on the inner sides of the two groups of slide grooves 64 respectively.

[0042] Specifically, when the first motor 4 rotates, it drives the second fixed rod 91 to rotate through the installation sleeve 65, and the second fixed rod 91 drives the air pump 92 to move. The air pump 92 drives the spherical roller 94 to slide on the inner side of the slide groove 64 through the fixed block 93 to keep the cleaning structure 9 balanced when rotating and reduce friction.

[0043] In this embodiment, a fourth electric telescopic rod 916 is installed at the lower end of the air pump 92, and the output shaft of the fourth electric telescopic rod 916 is fixedly connected to the mounting plate 95. A second motor 913 is installed on one side of the mounting plate 95, and the other side of the mounting plate 95 is rotatably connected to the fourth gear 912. The output shaft of the second motor 913 is fixedly connected to the fourth gear 912, and the other end of the fourth gear 912 is fixedly connected to the cleaning plate 915.

[0044] Specifically, after the cylinder 2 drives the chamfering structure 6 to reset upward, the fourth electric telescopic rod 916 is started to drive the mounting plate 95 to move downward, the second motor 913 is started, and the second motor 913 drives the fourth gear 912 to rotate. The other end of the fourth gear 912 cleans the chamfered area below the hexagon socket screw 7 through the cleaning plate 915.

[0045] In this embodiment, the outer side of the fourth gear 912 is rotatably connected to the second synchronous belt 911, and the inner side of the second synchronous belt 911 is rotatably connected to the third gear 96. One end of the third gear 96 is rotatably connected to the mounting plate 95 through a rotating shaft, and the other end of the third gear 96 is fixedly connected to the first cleaning roller brush 97. The outer side of the first cleaning roller brush 97 is provided with an exhaust hole, and the outer side of the first cleaning roller brush 97 is rotatably connected to the sliding sleeve 98. The inner side of the sliding sleeve 98 is slidably connected to the second cleaning roller brush 910. The outer side of the second cleaning roller brush 910 is provided with an exhaust hole, and the outer side of the second cleaning roller brush 910 is fixedly connected to a circular limiting plate, and the outer side of the sliding sleeve 98 is fixedly connected to an exhaust hose 99. The outer side of the exhaust hose 99 passes through the mounting plate 95, and the other end of the exhaust hose 99 is fixedly connected to the output port of the air pump 92. A third electric telescopic rod 914 is installed on the inner side of the first cleaning roller brush 97, and the output shaft of the third electric telescopic rod 914 is fixedly connected to the second cleaning roller brush 910.

[0046] Specifically, the fourth gear 912 drives the third gear 96 to rotate through the second synchronous belt 911, and the third gear 96 drives the first cleaning roller brush 97 to rotate. The first cleaning roller brush 97 drives the second cleaning roller brush 910 to rotate through the third electric telescopic rod 914, and the air pump 92 is started. The output port of the air pump 92 outputs airflow to the sliding sleeve 98 through the exhaust hose 99. The airflow is transported to the first cleaning roller brush 97 and the second cleaning roller brush 910 through the sliding sleeve 98. When the second cleaning roller brush 910 rotates, it cleans the debris in the assembly hole of the hexagon socket screw 7, and then uses the airflow to expel the internal debris to the outside, thereby keeping the assembly hole clean. When the first cleaning roller brush 97 rotates, it cleans the chamfered area above the head of the hexagon socket screw 7, and uses the airflow to clean the outer debris, keeping the outer side of the hexagon socket screw 7 clean and evenly applying lubricating oil.

[0047] In this embodiment, the clamping structure 8 includes two groups of second electric telescopic rods 81 installed on the fixed frame 1, the output shafts of the two groups of second electric telescopic rods 81 are commonly fixedly connected to the annular top plate 82, the upper end of the annular top plate 82 is fixedly connected to the rubber pad 83, and the outer sides of the two groups of second electric telescopic rods 81 are commonly provided with a third spring 84, one end of the third spring 84 is fixedly connected to the annular top plate 82, and the other end of the third spring 84 is fixedly connected to the fixed frame 1.

[0048] Specifically, the hexagon socket screw 7 is installed on the inner side of the fixed frame 1 through its own thread, and then the second electric telescopic rod 81 is started. The output shaft of the second electric telescopic rod 81 drives the annular top plate 82 to move upward, so that the rubber pad 83 is close to the lower end of the head of the hexagon socket screw 7. The tension of the third spring 84 stabilizes the position of the hexagon socket screw 7 to prevent displacement.

[0049] A method for using a chamfering device for fastener production, applicable to the above-mentioned chamfering device for fastener production, comprises the following steps:

[0050] S1, install the fastener on the inner side of the fixed frame 1 and fix its position by the clamping structure 8;

[0051] S2, start the cylinder 2 to drive the first motor 4 to move downward, so that the grinding shaft 5 chamfers the assembly hole of the fastener, and the chamfering structure 6 chamfers the periphery of the fastener head;

[0052] S3, after chamfering is completed, the fastener head and the assembly hole are cleaned by the cleaning structure 9.

[0053] Working principle: when in use, install the hexagon socket screw 7 on the inner side of the fixed frame 1 through its own thread, and then start the second electric telescopic rod 81. The output shaft of the second electric telescopic rod 81 drives the annular top plate 82 to move upward, so that the rubber pad 83 is close to the lower end of the head of the hexagon socket screw 7. The tension of the third spring 84 stabilizes the position of the hexagon socket screw 7 to avoid deviation. After the hexagon socket screw 7 is installed, start the cylinder 2. The output shaft of the cylinder 2 drives the first motor 4 installed on the inner side of the mounting frame 3 to move downward, and drives the other structures of the chamfering structure 6 and the cleaning structure 9 to move downward through the mounting frame 3 through the first fixed rod 61. The output shaft of the first motor 4 drives the grinding shaft 5 to fit the assembly hole at the upper end of the hexagon socket screw 7, and starts the first electric The telescopic rod 66 and the output shaft of the first electric telescopic rod 66 drive the slider 67 to extend to one side so that the second protrusion 68 fits the first protrusion 63. When the slider 67 moves, it drives the C-shaped bracket 623 to move. The C-shaped bracket 623 moves to fit the two sets of grinding sheets 624 to the upper and lower ends of the head of the hexagon socket screw 7. The first motor 4 is started, and the output shaft of the first motor 4 drives the grinding shaft 5 to chamfer the assembly hole at the upper end of the hexagon socket screw 7. The output shaft of the first motor 4 drives the first electric telescopic rod 66 to rotate through the mounting sleeve 65. The first electric telescopic rod 66 drives the slider 67 to rotate through the output shaft. The slider 67 drives the oil tank 611 to rotate inside the fixed annular plate 62 through the fixed plate 610. The output shaft of the first motor 4 drives the second gear 616 to rotate. The first gear 614 is driven by the first synchronous belt 615 to rotate, and the first gear 614 drives the first discharge pipe 612 to rotate. The first discharge pipe 612 drives the chamfering rod 621 to chamfer the angles of the upper and lower ends of the head of the hexagon socket screw 7. The first discharge pipe 612 drives the blade 619 to stir the lubricating oil in the oil tank 611 to avoid sedimentation. When the first discharge pipe 612 rotates, the first feed hole 613 is aligned with the second feed hole 618 on the outside of the fixed sleeve 617 according to the rotation frequency, so that the lubricating oil passes through the blade 619 and the first feed hole 613 into the inner side of the first discharge pipe 612, and then flows out through the discharge hole 620, and is guided along the first guide groove 622. When the second protrusion 68 follows the slider 67 to rotate, the second protrusion 68 will contact the first protrusion 63, and the slider 67 will slide to the other side through the protrusion of the first protrusion 63, and then reset again through the tension of the first spring 69, so that the C-shaped bracket 623 will shake slightly through the cooperation between the second protrusion 68 and the first protrusion 63, without affecting the transmission of the first electric telescopic rod 66, the grinding sheet 624 will rub the chamfered areas of the upper and lower ends of the head of the hexagon socket screw 7 to make the friction area smoother. When the chamfering rod 621 rotates, part of the lubricating oil is thrown out by centrifugal force to lubricate the chamfered area and the outer side of the grinding shaft 5. The lubricating oil flows downward through the second guide groove 10 to isolate the chamfered area from air.Avoid rust on the chamfered area of ​​the hexagon socket screw 7 after cleaning the oxide layer;

[0054] After the chamfering is completed, the first electric telescopic rod 66 is started to offset the C-shaped bracket 623 from the hexagon socket screw 7, and then the cylinder 2 is started to lift the mounting frame 3 upward to offset it from the hexagon socket screw 7, and the fourth electric telescopic rod 916 is started. The output shaft of the fourth electric telescopic rod 916 drives the mounting plate 95 to move downward, and at the same time, the third electric telescopic rod 914 is started. The output shaft of the third electric telescopic rod 914 drives the second cleaning roller brush 910 to slide outward. The third electric telescopic rod 914 limits the third electric telescopic rod 914 through a limit plate at one end. The moving range of the rod 914 makes the outer side of the third electric telescopic rod 914 fit into the inner wall of the assembly hole of the hexagon socket screw 7, and the outer side of the first cleaning roller brush 97 fits into the outer wall of the head of the hexagon socket screw 7. The first motor 4 is started again, and the output shaft of the first motor 4 drives the second fixed rod 91 to rotate through the mounting sleeve 65. The second fixed rod 91 drives the air pump 92 to rotate, and the air pump 92 drives the spherical roller 94 to slide in the slide groove 64 through the fixing block 93, thereby reducing the friction generated during movement and maintaining the balance of the cleaning structure 9. The second motor 913 is driven by the second motor 913, and the fourth gear 912 is driven to rotate. The other end of the fourth gear 912 cleans the chamfered area below the hexagon socket screw 7 through the cleaning plate 915. The fourth gear 912 drives the third gear 96 to rotate through the second synchronous belt 911. The third gear 96 drives the first cleaning roller brush 97 to rotate. The first cleaning roller brush 97 drives the second cleaning roller brush 910 to rotate through the third electric telescopic rod 914, and the air pump 92 is started. The output port of the air pump 92 is pushed toward the sliding door through the exhaust hose 99. The airflow is output from the movable sleeve 98, and the airflow is transported to the first cleaning roller brush 97 and the second cleaning roller brush 910 through the sliding sleeve 98. When the second cleaning roller brush 910 rotates, it cleans the debris in the assembly hole of the hexagon socket screw 7, and then uses the airflow to expel the internal debris to the outside, thereby keeping the assembly hole clean. When the first cleaning roller brush 97 rotates, it cleans the chamfered area above the head of the hexagon socket screw 7, and uses the airflow to clean the outer debris, keeping the outer side of the hexagon socket screw 7 clean, and evenly applying lubricating oil.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A chamfering device for fastener production, comprising a fixed frame, characterized in that: The inner side of the fixed frame is provided with a hexagon socket screw, the outer side of the hexagon socket screw inside the fixed frame is provided with a clamping structure, a cylinder is installed on one side of the fixed frame, the output shaft of the cylinder is fixedly connected to the mounting frame, the inner side of the mounting frame is provided with a first motor, the output shaft of the first motor is fixedly connected to the grinding shaft, the outer side of the grinding shaft is provided with multiple groups of second guide grooves, both sides of the mounting frame are provided with chamfered structures, the chamfered structure includes a mounting sleeve, the outer side of the mounting sleeve is provided with a cleaning structure, the chamfered structure includes two groups of first fixing rods fixedly connected to the mounting frame, the two groups of the first The lower end of the fixing rod is commonly fixedly connected to a fixing annular plate, and the upper and lower ends of the fixing annular plate are provided with sliding grooves, and the inner wall of the fixing annular plate is fixedly connected to multiple groups of first protrusions, the outer side of the first protrusion is slidably connected to the second protrusion, and the other side of the second protrusion is fixedly connected to a slider, and the other side of the slider is slidably connected to the output shaft of the first electric telescopic rod, and the outer shell of the first electric telescopic rod is fixedly connected to a mounting sleeve, and the inner side of the mounting sleeve is fixedly connected to the output shaft of the first motor, and a first spring is provided on the inner side of the slider, and one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the The output shaft of the first electric telescopic rod is fixedly connected, the lower end of the slider is fixedly connected to a fixed plate, the lower end of the fixed plate is fixedly connected to a C-shaped bracket, two groups of symmetrical frosting sheets are fixedly connected to both sides of the C-shaped bracket, the inner side of the fixed plate is rotatably connected to a chamfering rod through a rotating shaft, the outer side of the chamfering rod is provided with multiple groups of first guide grooves, the upper end of the chamfering rod is fixedly connected to the first discharge pipe through a rotating shaft, the cleaning structure includes a second fixed rod fixedly connected to the mounting sleeve, the other end of the second fixed rod is fixedly connected to an air pump, one side of the air pump is fixedly connected to two groups of symmetrical fixed blocks, and the two groups of fixed blocks are relatively Spherical rollers are installed on the close side, and the two groups of spherical rollers slide on the inner sides of the two groups of slide grooves respectively. The cleaning structure also includes a fourth gear, one end of the fourth gear is fixedly connected to the cleaning plate, the outer side of the fourth gear is rotatably connected to the second synchronous belt, the inner side of the second synchronous belt is rotatably connected to the third gear, one end of the third gear is rotatably connected to the mounting plate through a rotating shaft, and the other end of the third gear is fixedly connected to the first cleaning roller brush, an exhaust hole is provided on the outer side of the first cleaning roller brush, the outer side of the first cleaning roller brush is rotatably connected to a sliding sleeve, and the inner side of the sliding sleeve is slidably connected to the second cleaning roller brush.

2. A chamfering device for fastener production according to claim 1, characterized in that: One side of the fixed plate is fixedly connected to an oil tank, and the other side of the oil tank is rotatably connected to the output shaft of the first motor through a sleeve, the inner side of the oil tank is fixedly connected to a fixed sleeve, the outer side of the fixed sleeve is provided with a second feed hole, the inner side of the fixed sleeve is rotatably connected to the first discharge pipe, the first discharge pipe is hollow design, the outer side of the first discharge pipe is provided with a first feed hole near the upper end, the outer side of the first discharge pipe is provided with a discharge hole near the lower end, the outer side of the first discharge pipe is fixedly connected to a blade, the upper end of the first discharge pipe is fixedly connected to a first gear, the outer side of the first gear is rotatably connected to a first synchronous belt, the first synchronous belt has a certain degree of elasticity, the inner side of the first synchronous belt is rotatably connected to the second gear, and the inner side of the second gear is fixedly connected to the output shaft of the first motor.

3. A chamfering device for fastener production according to claim 1, characterized in that: A fourth electric telescopic rod is installed at the lower end of the air pump, and the output shaft of the fourth electric telescopic rod is fixedly connected to a mounting plate. A second motor is installed on one side of the mounting plate, and the other side of the mounting plate is rotationally connected to the fourth gear, and the output shaft of the second motor is fixedly connected to the fourth gear.

4. A chamfering device for fastener production according to claim 1, characterized in that: An exhaust hole is provided on the outside of the second cleaning roller brush, and a circular limit plate is fixedly connected to the outside of the second cleaning roller brush. An exhaust hose is fixedly connected to the outside of the sliding sleeve, and the outside of the exhaust hose passes through the mounting plate. The other end of the exhaust hose is fixedly connected to the output port of the air pump. A third electric telescopic rod is installed on the inside of the first cleaning roller brush, and the output shaft of the third electric telescopic rod is fixedly connected to the second cleaning roller brush.

5. The chamfering device for fastener production according to claim 1, characterized in that: The clamping structure includes two groups of second electric telescopic rods installed on the fixed frame, the output shafts of the two groups of second electric telescopic rods are commonly fixedly connected to an annular top plate, the upper end of the annular top plate is fixedly connected to a rubber pad, and the outer sides of the two groups of second electric telescopic rods are commonly provided with a third spring, one end of the third spring is fixedly connected to the annular top plate, and the other end of the third spring is fixedly connected to the fixed frame.

6. A method for using a chamfering device for fastener production, applicable to a chamfering device for fastener production according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, install the fastener on the inner side of the fixed frame and fix its position by the clamping structure; S2, starting the cylinder to drive the first motor downward, so that the grinding shaft chamfers the assembly hole of the fastener, and the chamfering structure chamfers the periphery of the fastener head; S3, after chamfering is completed, the fastener head and assembly hole are cleaned through the cleaning structure.

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