Notch chamfering machine for cold-drawn round steel

Abstract

The invention relates to the technical field of chamfering machines, and provides a cold-drawn round steel notch chamfering machine which comprises a machine body, a clamping mechanism and a cutter head, the clamping mechanism is arranged on the machine body and used for clamping round steel, the cold-drawn round steel notch chamfering machine further comprises a driving mechanism, a protection assembly, a scrap collecting assembly and a blowing-off assembly, and the driving mechanism is used for driving the cutter head to rotate and move; the protection assembly is used for protecting a chamfering area and blocking chamfering scraps, the scrap collecting assembly is used for collecting the chamfering scraps and comprises a scrap collecting box, the scrap collecting box is fixedly connected to the bottom of the machine body, a discharging opening for allowing the chamfering scraps to fall down is formed in the machine body, and the scrap collecting box is located below the discharging opening; the blowing-off assembly is used for assisting in blowing off the chamfering chippings. By means of the technical scheme, the problems that in the prior art, metal chippings generated during chamfering splash, potential safety hazards exist, and a cutter is damaged are solved.

Description

Technical Field

[0001] The invention relates to the technical field of chamfering machines, and in particular to a cold-drawn round steel notching and chamfering machine. Background Art

[0002] The round steel chamfering machine is a device used to chamfer the ends of round steel. The purpose of chamfering is mainly to remove the sharp edges of the ends of round steel to make it safer and prevent scratches on operators during use. At the same time, in some assembly occasions, the chamfered round steel can be better installed with other components.

[0003] At present, chamfering machines usually place round steel manually on the clamping mechanism, clamp and position the round steel through the clamping mechanism, and the high-speed rotating tool will cut the end of the round steel according to the set angle and depth to form a chamfer. During the process of processing the round steel, the chamfering machine cuts off the excess material of the round steel cut by cutting. The high-speed rotation of the tool will cause the cut material to produce metal debris splashing, which poses a certain safety hazard. At the same time, the debris may affect the normal operation of the equipment and even damage the tool and other components, requiring frequent manual cleaning of the debris. Summary of the invention

[0004] The present invention provides a cold-drawn round steel cutting and chamfering machine, which solves the problems in the related art of metal debris splashing caused by chamfering, potential safety hazards and tool damage.

[0005] The technical solution of the present invention is as follows: A cold drawn round steel notching and chamfering machine comprises a machine body, a clamping mechanism and a cutter disc, wherein the clamping mechanism is arranged on the machine body and is used to clamp the round steel, and further comprises: A driving mechanism, the driving mechanism is used to drive the cutter disc to rotate and move, and the driving mechanism includes: A movable seat, the movable seat being movably arranged on the machine body; A driving shaft, the driving shaft is rotatably arranged on the moving seat, and the cutter disc is fixedly connected to the driving shaft; A protection component is used to protect the chamfer area and block chamfer debris. The protection component includes: A fixed cover, the fixed cover is fixedly connected to the body; A movable cover, wherein the movable cover is fixedly connected to the movable seat, and the movable cover and the fixed cover are in sliding cooperation; A chip collecting assembly, the chip collecting assembly is used to collect chamfering debris, and the chip collecting assembly comprises: A chip collecting box, the chip collecting box is fixedly connected to the bottom of the machine body, the machine body is provided with a material drop opening for the chamfering debris to fall, and the chip collecting box is located below the material drop opening; A blow-off assembly, the blow-off assembly is used to assist in blowing off the chamfered debris, and the blow-off assembly includes: A fan, wherein the fan is mounted on the movable seat; A blowing pipe is fixedly connected to the interior of the movable cover, the blowing pipe is communicated with an air outlet of the blower, and the blowing pipe is connected with a plurality of nozzles.

[0006] In order to reduce the secondary contamination of chamfered chips, a drop plate is rotatably connected inside the chip box. The drop plate is arranged inside the chip box at an angle and is connected to the inner wall of the chip box through a supporting spring.

[0007] In order to improve the effect of chamfering debris sliding off, a knocking mechanism is also included, and the knocking mechanism is used to knock the drop plate, and the knocking mechanism includes: A rotating rod, the rotating rod is rotatably connected to the inside of the chip collecting box, the rotating rod is located below the drop plate, and the rotating rod is connected to the driving shaft through a transmission assembly; A knocking block is fixedly connected to the outside of the rotating rod through an elastic plate, and the knocking block is in contact with the bottom end of the drop plate.

[0008] In order to realize the transmission connection between the rotating rod and the driving shaft, the transmission assembly includes: A support frame, the support frame is fixedly connected to the body; Transmission rod 1, the transmission rod 1 is rotatably connected to the support frame, and the transmission rod 1 is transmission-connected to the drive shaft; Transmission rod 2, the transmission rod 2 is rotatably connected to the support frame, the transmission rod 2 is transmission-connected to the rotating rod, and the transmission rod 2 is transmission-connected to the transmission rod 1.

[0009] In order to ensure the transmission connection between the driving shaft and the transmission rod 1 during movement, the external fixed sleeve of the driving shaft is provided with a sprocket 1, the movable cover is fixedly connected with a transmission box, the internal rotatable connection of the transmission box is provided with a sprocket 2, the sprocket 2 and the sprocket 1 are connected through chain transmission, the sprocket 2 and the transmission rod 1 are in sliding fit, and the transmission box is provided with a through hole for the transmission rod 1 to pass through.

[0010] In order to reduce the accumulation of chamfered debris under the drop plate, a slide is fixedly connected to the inner bottom wall of the chip collecting box, and a cleaning port is opened on the chip collecting box. The cleaning port is located on the side with a lower height of the slide, and a cleaning plate is detachably connected to the cleaning port.

[0011] In order to position the round steel, a positioning assembly is also included, and the positioning assembly is used to position the round steel during the clamping process. The positioning assembly includes: A positioning plate, wherein the positioning plate is movably arranged on the fixed cover, the positioning plate is a hollow structure, the positioning plate is connected to the air outlet of the fan, and a plurality of blowing holes are provided on the positioning plate.

[0012] The working principle and beneficial effects of the present invention are: 1. In the present invention, the round steel is positioned by the positioning plate, the round steel is clamped by the clamping mechanism, the moving seat drives the driving shaft and the cutter disc to move, the driving shaft drives the cutter disc to rotate, the round steel cut is chamfered, the chamfering area is protected by the fixed cover and the moving cover, the debris generated by the chamfering falls into the interior of the chip collecting box through the drop port for collection, the chamfering debris is blown off with the assistance of the fan and the blow pipe, the chamfering debris slides onto the landslide through the drop plate, and then slides to the cleaning port through the landslide, so that the flying of the chamfering debris in the chip collecting box is reduced, the splashing of the chamfering debris is avoided, and the processing is safer.

[0013] 2. In the present invention, the driving shaft drives the rotating rod to rotate through the transmission assembly, driving the knocking block to knock the drop plate, thereby assisting the chamfered chips on the drop plate to slide down and reducing the chamfered chips from continuing to rise through the drop port.

[0014] 3. In the present invention, air is supplied to the positioning plate by a fan. During the positioning process, air is blown to the cutter disc and the clamping mechanism through the blowing holes to purge the cutter disc and the clamping mechanism, thereby reducing residual chamfering debris on the cutter disc and the clamping mechanism, ensuring the chamfering processing accuracy of the round steel, and reducing damage to the cutter disc.

[0015] 4. Therefore, compared with the round steel cutting and chamfering machine in the prior art, the present invention blocks the chamfering debris while chamfering the round steel through the sliding cooperation of the movable cover and the fixed cover, and blows the chamfering debris through the blanking port to the inside of the chip collecting box under the action of the fan, and the chamfering debris slides to the slope through the drop plate, and the driving shaft drives the rotating rod to rotate, driving the knocking tool to knock the drop plate, thereby assisting the sliding of the chamfering debris, and the chamfering debris slides to the cleaning port through the landslide, and the chamfering debris can be cleaned out regularly, thereby reducing the safety hazard caused by the splashing of metal debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention; Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 3It is a schematic diagram of the structure of the driving mechanism, the blowing-off assembly and the positioning assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the chip collection assembly, the drop plate and the knocking mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the drive shaft, transmission assembly and knocking mechanism of the present invention; Figure 6 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1. Machine body; 2. Cutter head; 3. Drop plate; 4. Support spring; 5. Slide; 101. Fixed clamping seat; 102. Mobile clamping seat; 103. Electric cylinder 1; 201, moving seat; 202, driving shaft; 203, electric cylinder 2; 204, motor; 301, fixed cover; 302, movable cover; 401, chip box; 501, fan; 502, air blower; 503, nozzle; 601, positioning plate; 602, electric cylinder three; 603, air supply pipe one; 604, air supply pipe two; 701, rotating rod; 702, striking block; 801, support frame; 802, transmission rod 1; 803, transmission rod 2; 804, sprocket 1; 805, transmission box; 806, sprocket 2. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figures 1 to 6As shown, the present embodiment proposes a cold-drawn round steel cutting and chamfering machine, comprising a machine body 1, a clamping mechanism and a cutter disc 2. The clamping mechanism is arranged on the machine body 1 for clamping the round steel, and also comprises a driving mechanism, a protective component, a chip collecting component and a blowing-off component. Compared with the round steel cutting and chamfering machine in the prior art, the present invention blocks the chamfering debris while chamfering the round steel through the sliding cooperation of the movable cover 302 and the fixed cover 301, and blows the chamfering debris through the blanking port to the inside of the chip collecting box 401 under the action of the fan 501, and the chamfering debris slides onto the slope through the drop plate 3, and the rotating rod 701 is driven to rotate by the driving shaft 202, so as to drive the knocking fastener to knock the drop plate 3, thereby assisting the sliding of the chamfering debris, and the chamfering debris slides to the cleaning port through the landslide 5, and the chamfering debris can be cleaned out regularly, thereby reducing the safety hazard caused by the splashing of metal debris.

[0021] The clamping mechanism includes a fixed clamping seat 101 and a movable clamping seat 102. The fixed clamping seat 101 is fixedly connected to the machine body 1. An electric cylinder 103 is installed on the machine body 1. The movable clamping seat 102 is fixedly connected to the output end of the electric cylinder 103. The fixed clamping seat 101 and the movable clamping seat 102 are provided with clamping openings matching the round steel. The round steel is placed inside the clamping opening on the fixed clamping seat 101, and the round steel is positioned by the positioning plate 601. The electric cylinder 103 drives the movable clamping seat 102 to descend, and cooperates with the fixed clamping seat 101 to clamp the round steel to ensure the stability of the round steel. The axis of the round steel is aligned with the axis of the cutter disc 2.

[0022] The driving mechanism is used to drive the cutter disc 2 to rotate and move. The driving mechanism includes a moving seat 201 and a driving shaft 202. The moving seat 201 is movably set on the machine body 1. An electric cylinder 203 is installed on the machine body 1. The moving seat 201 is fixedly connected to the output end of the electric cylinder 203. The driving shaft 202 is rotatably set on the moving seat 201. A motor 204 is installed on the moving seat 201. The driving shaft 202 is fixedly connected to the output end of the motor 204. The cutter disc 2 is fixedly connected to the driving shaft 202. The moving seat 201 can be driven to move toward the clamping mechanism through the electric cylinder 203. The driving shaft 202 and the cutter disc 2 are driven to rotate through the motor 204 to chamfer the cut of the round steel.

[0023] The protective component is used to protect the chamfering area and block the chamfering debris. The protective component includes a fixed cover 301 and a movable cover 302. The fixed cover 301 is fixedly connected to the body 1, and the movable cover 302 is fixedly connected to the movable seat 201. The movable cover 302 and the fixed cover 301 are in sliding cooperation. The drive shaft 202 and the movable cover 302 are rotatably connected. The cutter disc 2 is located inside the movable cover 302. The movement of the movable seat 201 and the cutter disc 2 is achieved through the sliding cooperation of the movable cover 302 and the fixed cover 301. At the same time, the movable cover 302 cooperates with the fixed cover 301 and the body 1 to close the chamfering area to avoid the splashing of chamfering debris. The fixed cover 301 and the movable cover 302 are both made of transparent material, and the chamfering situation can be observed.

[0024] The chip collecting assembly is used to collect chamfering debris, and the chip collecting assembly includes a chip collecting box 401, which is fixedly connected to the bottom of the machine body 1. The machine body 1 is provided with a drop opening for the chamfering debris to fall. The chip collecting box 401 is located below the drop opening. The metal debris generated by chamfering falls into the interior of the chip collecting box 401 through the drop opening for collection.

[0025] The blowing-off assembly is used to assist in blowing off the chamfering debris. The blowing-off assembly includes a fan 501 and a blowing pipe 502. The fan 501 is installed on the movable seat 201. The blowing pipe 502 is fixedly connected to the inside of the movable cover 302. The blowing pipe 502 is connected to the air outlet of the fan 501. The blowing pipe 502 is connected to a plurality of nozzles 503. Air is supplied to the inside of the blowing pipe 502 through the fan 501. The blowing pipe 502 is located above the cutter disc 2. The blowing pipe 502 moves with the cutter disc 2. Air is blown toward the cutter disc 2 through the nozzles 503 to assist in blowing off the debris generated by chamfering to the inside of the chip collecting box 401. At the same time, the inner walls of the movable cover 302 and the fixed cover 301 are swept to reduce the adhesion of the chamfering debris in the movable cover 302 and the fixed cover 301.

[0026] In order to position the round steel, a positioning assembly is also included. The positioning assembly is used to position the round steel during the clamping process. The positioning assembly includes a positioning plate 601. The positioning plate 601 is movably arranged on the fixed cover 301. The fixed cover 301 is equipped with an electric cylinder 3 602. The positioning plate 601 is fixedly connected to the output end of the electric cylinder 3 602. The positioning plate 601 is a hollow structure. The positioning plate 601 is connected to the air outlet of the fan 501. A plurality of blowing holes are opened on the positioning plate 601. The air outlet of the fan 501 is connected to an air supply pipe 1 603 and an air supply pipe 2 604 through a three-way joint. The air supply pipe 1 603 is connected to the blowing pipe 502. The air supply pipe 2 60 The positioning plate 601 is connected to the positioning plate 601 through the telescopic hose, and the positioning plate 601 can be driven to move through the electric cylinder 602. When the round steel is loaded, the positioning plate 601 moves to the position corresponding to the clamping opening, and the round steel is placed on the fixed clamping seat 101, so that the incision of the round steel and the positioning plate 601 are closely attached to position the round steel, so as to ensure the dimensional accuracy of the subsequent chamfering. When the positioning plate 601 moves between the cutter disc 2 and the fixed clamping seat 101, the cutter disc 2 and the cut of the round steel are purged through the blowing hole to reduce the adhesion of chamfering debris on the cutter disc 2, and at the same time, remove impurities at the cut of the round steel, so as to ensure the accuracy of the chamfering and reduce the damage of the cutter disc 2.

[0027] In order to reduce the secondary contamination of chamfered chips, the chip collecting box 401 is internally rotatably connected with a drop plate 3, and the drop plate 3 is inclinedly arranged inside the chip collecting box 401. The drop plate 3 is connected to the inner wall of the chip collecting box 401 through the supporting spring 4. When the chamfered chips fall into the chip collecting box 401, they are above the drop plate 3, and the chamfered chips slide down through the drop plate 3. The side of the drop plate 3 with a higher height is rotatably connected to the chip collecting box 401, and the gap between this side and the chip collecting box 401 is smaller. There is a certain gap between the lower side of the drop plate 3 and the inner wall of the chip collecting box 401, so that metal chips fall into the bottom of the chip collecting box 401. Through the elasticity of the supporting spring 4 and the rotation of the drop plate 3, when the metal chips hit the surface of the drop plate 3, the drop plate 3 can be swung to facilitate the falling of the chamfered chips.

[0028] In order to improve the effect of the chamfered chips sliding off, it also includes a knocking mechanism, which is used to knock on the drop plate 3. The knocking mechanism includes a rotating rod 701 and a knocking block 702. The rotating rod 701 is rotatably connected to the inside of the chip collecting box 401, and the rotating rod 701 is located below the drop plate 3. The rotating rod 701 is connected to the drive shaft 202 through a transmission assembly, and the knocking block 702 is fixedly connected to the outside of the rotating rod 701 through an elastic plate. The knocking block 702 contacts the bottom end of the drop plate 3, and the driving shaft 202 drives the rotating rod 701 to rotate. The rotating rod 701 drives multiple knocking blocks 702 to rotate, continuously knocking on the bottom end of the drop plate 3, driving the drop plate 3 to swing, further improving the falling efficiency of the chamfered chips on the drop plate 3, and avoiding the accumulation of chamfered chips on the drop plate 3.

[0029] In order to reduce the accumulation of chamfered debris under the falling plate 3, a landslide 5 is fixedly connected to the inner bottom wall of the chip collecting box 401, and a cleaning port is opened on the chip collecting box 401. The cleaning port is located on the side with a lower height of the landslide 5, and a cleaning plate is detachably connected to the cleaning port. The higher side of the landslide 5 is below the lower side of the falling plate 3. The chamfered debris sliding down through the falling plate 3 falls on the higher side of the landslide 5 and slides to the cleaning port through the landslide 5, thereby avoiding excessive accumulation of chamfered debris under the falling plate 3, which would affect the continued falling of the chamfered debris.

[0030] In order to realize the transmission connection between the rotating rod 701 and the driving shaft 202, the transmission assembly includes a support frame 801, a transmission rod 1 802 and a transmission rod 2 803. The support frame 801 is fixedly connected to the machine body 1, and the transmission rod 1 802 is rotatably connected to the support frame 801. The transmission rod 1 802 is in transmission connection with the driving shaft 202. In order to ensure the transmission connection between the driving shaft 202 and the transmission rod 1 802 during the movement, the external fixed sleeve of the driving shaft 202 is provided with a sprocket 1 804. The movable cover 302 is fixedly connected with a transmission box 805, and the transmission box 805 is internally rotatably connected with a sprocket wheel 806. The sprocket wheel 806 and the sprocket wheel 1 804 are connected by chain transmission. The sprocket wheel 806 and the transmission rod 1 802 are in sliding cooperation. The sprocket wheel 806 is provided with a sliding hole adapted to the transmission rod 1 802, and a slider is fixedly connected to the inside of the sliding hole. The transmission rod 1 802 is provided with a sliding groove matching the slider. The transmission box 805 is provided with a slot for the transmission rod 1 804 to slide. 02 passes through the through hole, the transmission rod 2 803 is rotatably connected to the support frame 801, the transmission rod 2 803 and the rotating rod 701 are connected through the sprocket chain transmission, the transmission rod 2 803 is connected through the sprocket chain and the transmission rod 1 802, the motor 204 drives the drive shaft 202 and the cutter head 2 to rotate, the round steel cut is chamfered, the drive shaft 202 drives the sprocket 1 804 to rotate, and the sprocket 2 806 is driven to rotate under the transmission action of the chain, and the movable seat 201 is brought When the movable cover 302 and the cutter disc 2 move, the movable cover 302 drives the transmission box 805 to move, so that the sprocket 2 806 rotates with the sprocket 1 804, and the sprocket 2 806 moves along the transmission rod 1 802, while cooperating with the movement of the cutter disc 2, driving the transmission rod 1 802 to rotate, under the transmission action of the sprocket chain, the transmission rod 1 802 drives the transmission rod 2 803 to rotate, and the transmission rod 2 803 drives the rotating rod 701 and the knocking block 702 to rotate, and knocks the drop plate 3.

[0031] The working principle or use process of the cold drawn round steel notching and chamfering machine is as follows: First, place the round steel inside the clamping opening on the fixed clamping seat 101, and the electric cylinder 3 602 drives the positioning plate 601 to move to the position corresponding to the clamping opening, so that the round steel and the positioning plate 601 are tightly attached, and the electric cylinder 1 103 drives the mobile clamping seat 102 to descend to clamp the round steel; The electric cylinder 203 drives the moving seat 201 to approach the round steel, and the motor 204 drives the driving shaft 202 and the cutter head 2 to rotate, and the cutter head 2 performs chamfering on the round steel; The movable cover 302 and the fixed cover 301 protect the chamfering area, and under the action of the fan 501 and the blowing pipe 502, the chamfering debris falls into the inside of the chip collecting box 401 through the drop opening for collection; The chamfered chips fall on the drop plate 3 and slide down along the drop plate 3. Under the action of the transmission assembly, the driving shaft 202 drives the rotating rod 701 to rotate, driving the knocking block 702 to knock the drop plate 3, accelerating the swing of the drop plate 3, and causing the chamfered chips to fall down. The chamfered debris slides down the landslide 5 to the cleaning port, and the cleaning plate is opened regularly to clean out the chamfered debris.

[0032] The above are only preferred embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. A cold drawn round steel notching and chamfering machine, comprising a machine body (1), a clamping mechanism and a cutter disc (2), characterized in that: Also includes: A driving mechanism, the driving mechanism being used to drive the cutter disc (2) to rotate and move; A protection component, which is used to protect the chamfer area and block chamfer debris; A chip collecting assembly, the chip collecting assembly is used to collect chamfering debris, and the chip collecting assembly comprises: A chip collecting box (401), the chip collecting box (401) being fixedly connected to the bottom of the machine body (1), the machine body (1) being provided with a material drop opening for chamfering debris to drop, the chip collecting box (401) being located below the material drop opening; A blow-off component is used to assist in blowing off chamfering debris.

2. A cold drawn round steel notching and chamfering machine according to claim 1, characterized in that: The driving mechanism comprises: A movable seat (201), the movable seat (201) being movably arranged on the machine body (1); A drive shaft (202), the drive shaft (202) being rotatably disposed on the movable seat (201), and the cutter disc (2) being fixedly connected to the drive shaft (202).

3. A cold drawn round steel notching and chamfering machine according to claim 2, characterized in that: The protection component comprises: A fixed cover (301), the fixed cover (301) being fixedly connected to the machine body (1); A movable cover (302), wherein the movable cover (302) is fixedly connected to the movable seat (201), and the movable cover (302) and the fixed cover (301) are in sliding cooperation.

4. A cold drawn round steel notching and chamfering machine according to claim 3, characterized in that: The blow-off assembly comprises: A fan (501), the fan (501) being mounted on the movable seat (201); A blowing pipe (502), the blowing pipe (502) is fixedly connected to the inside of the movable cover (302), the blowing pipe (502) is connected to an air outlet of the fan (501), and the blowing pipe (502) is connected to a plurality of nozzles (503).

5. The cold drawn round steel notching and chamfering machine according to claim 4, characterized in that: A drop plate (3) is rotatably connected inside the chip collecting box (401), and the drop plate (3) is arranged in an inclined manner inside the chip collecting box (401). The drop plate (3) is connected to the inner wall of the chip collecting box (401) via a supporting spring (4).

6. The cold drawn round steel notching and chamfering machine according to claim 5, characterized in that: It also includes a knocking mechanism, which is used to knock the drop plate (3), and the knocking mechanism includes: A rotating rod (701), the rotating rod (701) being rotatably connected to the inside of the chip collecting box (401), the rotating rod (701) being located below the drop plate (3), and the rotating rod (701) being transmission-connected to the driving shaft (202) via a transmission assembly; A knocking block (702), wherein the knocking block (702) is fixedly connected to the outside of the rotating rod (701) via an elastic plate, and the knocking block (702) is in contact with the bottom end of the drop plate (3).

7. The cold drawn round steel notching and chamfering machine according to claim 6, characterized in that: The transmission assembly comprises: A support frame (801), the support frame (801) being fixedly connected to the machine body (1); Transmission rod 1 (802), the transmission rod 1 (802) is rotatably connected to the support frame (801), and the transmission rod 1 (802) is transmission-connected to the drive shaft (202); Transmission rod 2 (803), the transmission rod 2 (803) is rotatably connected to the support frame (801), the transmission rod 2 (803) is transmission-connected to the rotating rod (701), and the transmission rod 2 (803) is transmission-connected to the transmission rod 1 (802).

8. The cold drawn round steel notching and chamfering machine according to claim 7, characterized in that: The driving shaft (202) is fixedly sleeved with a sprocket wheel 1 (804) on the outside, the movable cover (302) is fixedly connected with a transmission box (805), the transmission box (805) is internally rotatably connected with a sprocket wheel 2 (806), the sprocket wheel 2 (806) and the sprocket wheel 1 (804) are connected via a chain transmission, the sprocket wheel 2 (806) and the transmission rod 1 (802) are in sliding cooperation, and the transmission box (805) is provided with a through hole for the transmission rod 1 (802) to pass through.

9. The cold drawn round steel notching and chamfering machine according to claim 8, characterized in that: The inner bottom wall of the chip collecting box (401) is fixedly connected to a slideway (5), and the chip collecting box (401) is provided with a cleaning opening, the cleaning opening being located on a side of the slideway (5) with a lower height, and a cleaning plate being detachably connected to the cleaning opening.

10. A cold drawn round steel notching and chamfering machine according to claim 9, characterized in that: It also includes a positioning assembly, which is used to position the round steel during the clamping process, and the positioning assembly includes: A positioning plate (601), the positioning plate (601) being movably arranged on the fixed cover (301), the positioning plate (601) being a hollow structure, the positioning plate (601) being connected to an air outlet of the fan (501), and a plurality of air blowing holes being provided on the positioning plate (601).

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