An angle steel chamfering CNC machine tool

Abstract

The present invention belongs to the technical field of angle steel cutting, and discloses an angle steel chamfering numerical control machine tool, including a bottom plate; a feeding assembly; a clamping assembly; a punching assembly; a discharging assembly and a cutting assembly. By installing a newly designed cutting assembly, the angle steel first enters the through groove of the trapezoidal block. However, at this time, the angle steel may not be at the center position of the through groove. Move the rubber telescopic block upward. The rubber telescopic block has a trapezoidal design that is narrow at the top and wide at the bottom. During the continuous rising process, the angle steel will be clamped in the through groove. At this time, increase the stroke of the two second hydraulic rods to drive the cutter to cut the angle steel. The four telescopic rods provided will follow and adjust to absorb the sudden inertia when the two second hydraulic rods are started, solving the problem that there is no positioning after the angle steel moves into the cutting area, and in addition, the cutting tools mostly use obliquely cutting devices driven by hydraulic rods, which will generate vibrations during cutting and tool retraction, thus causing deviation of the existing position of the angle steel.

Description

Technical Field

[0001] The invention belongs to the technical field of angle steel cutting, and particularly relates to a numerical control machine tool for angle steel chamfering. Background Art

[0002] Angle steel, commonly known as angle iron, is a long strip of steel with two sides perpendicular to each other at an angle. In actual use, different lengths of angle steel are required. Therefore, an angle steel chamfering machine has emerged. This is a device specifically used for angle steel chamfering. It usually has specific chamfering molds and cutting tools, and can accurately cut angle steel according to the set angle. When operating, the angle steel is first fixed on the workbench of the chamfering machine, the cutting angle and position are adjusted, and the machine is started. The cutting tool will chamfer the angle steel along the predetermined trajectory. However, in actual use, during the transportation and cutting of angle steel, the angle steel moves into the cutting area, and there is often a deviation value in this feeding angle. Coupled with the fact that most of the cutting tools used are inclined cutting devices driven by hydraulic rods, vibrations will occur during cutting and tool retraction, which will cause the existing position of the angle steel to shift, resulting in the shift of the chamfering position, and in severe cases, even damage to the cutting tool. Summary of the Invention

[0003] The purpose of the invention is to provide a numerical control machine tool for angle steel chamfering to solve the problems mentioned in the above background art.

[0004] To achieve the above purpose, the invention provides the following technical solution: A numerical control machine tool for angle steel chamfering includes a bottom plate. A feeding assembly is fixedly installed on the top of the bottom plate. It also includes a linkage punching and discharging mechanism, which includes a clamping assembly. The clamping assembly is fixedly installed on the right side of the feeding assembly. A punching assembly is fixedly installed on the right side of the clamping assembly. An discharging assembly is fixedly installed on the right side of the punching assembly.

[0005] A cutting assembly is fixedly installed on the right side of the punching assembly. The cutting assembly includes a column. Two second hydraulic rods are fixedly connected to the inner side of the top of the column. The telescopic ends of the two second hydraulic rods are fixedly connected to a cutting knife. A trapezoidal block is fixedly installed on the right side of the cutting knife. Four telescopic rods are fixedly connected to the left side of the trapezoidal block. The telescopic ends of the four telescopic rods are fixedly connected to the inner side of the top of the column. A weight block is fixedly connected to the bottom of the trapezoidal block. A through groove is penetrated through the inside of the trapezoidal block. A rubber telescopic block is movably installed on the right side inside the through groove. Two second springs are fixedly installed on the right side of the trapezoidal block. The right ends of the two second springs are elastically connected to the weight block.

[0006] Preferably, the column is fixedly mounted on the top of the base plate, the inner side of the top of the column is an inclined surface, the left top of the trapezoidal block is also an inclined surface, the slope of the inclined surface of the column and the trapezoidal block is the same, and the rubber telescopic block is electrically driven and can move vertically in the through groove.

[0007] Preferably, the feeding assembly includes a base, which is fixedly mounted on the top of the bottom plate, an L-shaped plate is fixedly mounted on the top of the base, a push block is slidably mounted on the top of the L-shaped plate, a connecting rod is fixedly connected to the right side of the push block, the other end of the connecting rod is fixedly connected to a first electric wheel, the outer edge of the first electric wheel is movably sleeved with a track, and the track is fixedly mounted on the left side of the base.

[0008] Preferably, the clamping assembly includes two second electric wheels, and the two second electric wheels are movably clamped in the track, and a longitudinal plate is fixedly installed on the top of the two second electric wheels, and a connecting plate is movably hinged on the top of the longitudinal plate, and a first motor is fixedly connected to the hinge between the longitudinal plate and the connecting plate, and a clamping plate is fixedly connected to the right side of the connecting plate, and the clamping plate has two square holes, and round shafts are movably installed in the two square holes, and two groups of first springs are elastically connected to the right sides of the two round shafts, and the right ends of the two groups of first springs are fixedly connected to the clamping plate, and the outer edges of the two round shafts are sleeved with electric rubber wheels.

[0009] Preferably, the punching assembly includes a long groove, which is opened on the right side of the middle part of the L-shaped plate, a collecting box is fixedly installed at the bottom of the long groove, a top plate is fixedly installed at the top of the long groove, two hydraulic punching rods are fixedly installed on the inner side of the top of the top plate, a first fixed plate is fixedly installed on the front side of the two hydraulic punching rods, two first hydraulic rods are fixedly connected to the inner side of the first fixed plate, and the telescopic ends of the two first hydraulic rods are fixedly connected to a "川" block.

[0010] Preferably, the top plate is fixedly mounted on the top of the bottom plate, the two hydraulic punching rods can pass through the long slot when extending and retracting, the tail end of the "川" block is made of rubber material, and can contact the L-shaped plate under the movement of the two first hydraulic rods.

[0011] Preferably, the discharging assembly includes two second fixed plates, the two second fixed plates are fixedly installed on the top of the base plate, a step plate is rotatably installed at the middle position of the two second fixed plates, a second motor is fixedly installed on the right side of the rotating shaft of the step plate, the first track and the second track are fixedly installed on the top and left side of the step plate respectively, and the third track is fixedly installed on the front side of the second track.

[0012] Preferably, the first crawler track, the second crawler track and the third crawler track are all driven by electric motors, and the third crawler track is fixedly installed on the top right side of the base plate.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. By installing a newly designed cutting component in the present invention, the angle steel first enters the through groove of the trapezoidal block. However, at this time, the angle steel may not be at the center position of the through groove. Move the rubber telescopic block upward. The rubber telescopic block has a trapezoidal design that is narrower at the top and wider at the bottom. During the continuous upward movement, the angle steel will be clamped in the through groove. At this time, increase the stroke of the two second hydraulic rods to drive the cutting knife to cut the angle steel. The four telescopic rods arranged will adjust and absorb the sudden inertia when the two second hydraulic rods are started, solving the problem that the angle steel lacks positioning after moving into the cutting area. In addition, most of the cutting tools used are inclined cutting devices driven by hydraulic rods, which will generate vibrations during cutting and retracting the knife, thus causing the deviation of the existing position of the angle steel.

[0015] 2. By installing a clamping component in the present invention, the second electric wheel moves in the track, driving the whole clamping component to move. After determining the appropriate position, start the first motor to rotate the connecting plate towards the direction of the vertical plate. When the connecting plate is at a right angle to the vertical plate, the clamping plate connected to the connecting plate can play an adjusting role on the angle steel placed on the L-shaped plate. When the electric rubber wheel contacts the angle steel, its outer surface will be stressed, and then the first spring will be compressed through the round shaft. After the first spring is stressed, it will restore its stroke, and the two electric rubber wheels can clamp the angle steel, improving the stability during transportation.

[0016] 3. By installing a flip-up discharging component in the present invention, the first crawler and the second crawler in a vertical relationship are started simultaneously to receive the angle steel. When the angle steel completely leaves the cutting component, start the second motor. The second motor rotates counterclockwise to drive the stepped plate to flip. At this time, the angle steel will flip and fall onto the third crawler, and can be transported through the third crawler to complete the blanking. After the angle steel flips, it will be buckled on the surface of the third crawler in a triangular state. One is that it can improve the stability during transportation, and the other is that it is convenient for stacking multiple angle steels, which can save space. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the feeding component structure of the present invention;

[0019] Figure 3 is a schematic diagram of the clamping component structure of the present invention;

[0020] Figure 4 is a schematic diagram of the punching component structure of the present invention;

[0021] Figure 5 is a schematic diagram of the cutting component structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 Schematic enlarged view of the structure at position A in the present invention;

[0023] Figure 7 Schematic diagram of the structure of the discharging component of the present invention.

[0024] In the figure: 1, bottom plate; 2, feeding component; 3, clamping component; 4, punching component; 5, cutting component; 6, discharging component; 21, base; 22, L-shaped plate; 23, pushing block; 24, connecting rod; 25, first electric wheel; 26, track; 31, second electric wheel; 32, vertical plate; 33, first motor; 34, connecting plate; 35, clamping plate; 36, square hole; 37, round shaft; 38, first spring; 39, electric rubber wheel; 41, long slot; 42, collecting box; 43, top plate; 44, hydraulic punching rod; 45, first fixing plate; 46, first hydraulic rod; 47, S-shaped block; 51, column; 52, second hydraulic rod; 53, cutting knife; 54, trapezoidal block; 55, telescopic rod; 56, load-bearing block; 57, through slot; 58, second spring; 59, rubber telescopic block; 61, second fixing plate; 62, second motor; 63, stepped plate; 64, first track; 65, second track; 66, third track. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1 to 7 shown, the embodiment of the present invention provides an angle steel chamfering numerical control machine tool, including a bottom plate 1, a feeding component 2 is fixedly installed on the top of the bottom plate 1, and further includes a linkage punching and discharging mechanism, which includes a clamping component 3, the clamping component 3 is fixedly installed on the right side of the feeding component 2, a punching component 4 is fixedly installed on the right side of the clamping component 3, and a discharging component 6 is fixedly installed on the right side of the punching component 4;

[0027] Cutting assembly 5, the cutting assembly 5 is fixedly installed on the right side of the punching assembly 4. The cutting assembly 5 includes a column 51. Inside the top of the column 51, two second hydraulic rods 52 are fixedly connected. The telescopic ends of the two second hydraulic rods 52 are fixedly connected with a cutter 53. On the right side of the cutter 53, a trapezoidal block 54 is fixedly installed. On the left side of the trapezoidal block 54, four telescopic rods 55 are fixedly connected. The telescopic ends of the four telescopic rods 55 are all fixedly connected with the inner side of the top of the column 51. At the bottom of the trapezoidal block 54, a weight block 56 is fixedly connected. Inside the trapezoidal block 54, a through groove 57 is penetrated. Inside the right side of the through groove 57, a rubber telescopic block 59 is movably installed. On the right side of the trapezoidal block 54, two second springs 58 are fixedly installed. The right ends of the two second springs 58 are elastically connected with the weight block 56; The column 51 is fixedly installed on the top of the bottom plate 1. The inner side of the top of the column 51 is an inclined surface. The top left side of the trapezoidal block 54 is also an inclined surface. The slope of the inclined surface of the column 51 is the same as that of the trapezoidal block 54. The rubber telescopic block 59 is driven by electricity and can move vertically in the through groove 57;

[0028] The angle steel will first enter into the through groove 57 of the trapezoidal block 54. However, at this time, the angle steel may not be at the center position of the through groove 57. At this time, move the rubber telescopic block 59 upward. The rubber telescopic block 59 has a trapezoidal design with a narrow top and a wide bottom. During the continuous rising process, the angle steel will be clamped in the through groove 57. At this time, increase the stroke of the two second hydraulic rods 52 to drive the cutter 53 to cut the angle steel. The impact force generated during cutting can be slightly relieved by the two second springs 58. When the two second hydraulic rods 52 are started, a sudden inertia will be generated, resulting in shaking. Therefore, the four telescopic rods 55 provided will adjust accordingly to absorb the impact force, solving the problem that there is no positioning after the angle steel moves. In addition, most of the cutting tools used are inclined cutting devices driven by hydraulic rods, and vibrations will be generated during cutting and retracting the tool, thus causing the deviation of the existing position of the angle steel;

[0029] Among them, the feeding assembly 2 includes a base 21. The base 21 is fixedly installed on the top of the bottom plate 1. On the top of the base 21, an L-shaped plate 22 is fixedly installed. On the top of the L-shaped plate 22, a pushing block 23 is slidably installed. On the right side of the pushing block 23, a connecting rod 24 is fixedly connected. The other end of the connecting rod 24 is fixedly connected with a first electric wheel 25. The outer edge of the first electric wheel 25 is movably sleeved with a track 26. The track 26 is fixedly installed on the left side of the base 21;

[0030] Place the angle steel in the L-shaped plate 22, start the clamping assembly 3, start the first electric wheel 25. Through the connecting rod 24, the pushing block 23 can also have a pushing effect on the angle steel on the surface of the L-shaped plate 22;

[0031] The clamping assembly 3 includes two second electric wheels 31, which are both movably clamped in the track 26. A longitudinal plate 32 is fixedly installed on the top of the two second electric wheels 31, and a connecting plate 34 is movably hinged on the top of the longitudinal plate 32. A first motor 33 is fixedly connected to the hinge between the longitudinal plate 32 and the connecting plate 34. A clamping plate 35 is fixedly connected to the right side of the connecting plate 34. The clamping plate 35 has two square holes 36, and round shafts 37 are movably installed in the two square holes 36. Two groups of first springs 38 are elastically connected to the right sides of the two round shafts 37. The right ends of the two groups of first springs 38 are fixedly connected to the clamping plate 35, and the outer edges of the two round shafts 37 are sleeved with electric rubber wheels 39.

[0032] The second electric wheel 31 moves in the track 26, driving the whole clamping assembly 3 to move. After determining the appropriate position, the first motor 33 is started to rotate the connecting plate 34 in the direction of the longitudinal plate 32. When the connecting plate 34 is at a vertical angle with the longitudinal plate 32, the clamping plate 35 connected to the connecting plate 34 can adjust the angle steel placed on the L-shaped plate 22. When the electric rubber wheel 39 contacts the angle steel, its outer surface will be stressed, and then the first spring 38 will be squeezed through the circular shaft 37. After the first spring 38 is stressed, it will resume its stroke, and the two electric rubber wheels 39 can clamp the angle steel.

[0033] The punching assembly 4 includes a long slot 41, which is opened on the right side of the middle of the L-shaped plate 22. A collecting box 42 is fixedly installed at the bottom of the long slot 41, and a top plate 43 is fixedly installed on the top of the long slot 41. Two hydraulic punching rods 44 are fixedly installed on the inner side of the top of the top plate 43. A first fixed plate 45 is fixedly installed on the front side of the two hydraulic punching rods 44. Two first hydraulic rods 46 are fixedly connected to the inner side of the first fixed plate 45. The telescopic ends of the two first hydraulic rods 46 are fixedly connected to a "川" block 47. The top plate 43 is fixedly installed on the top of the bottom plate 1. The two hydraulic punching rods 44 can pass through the long slot 41 when telescopic. The tail end of the "川" block 47 is made of rubber and can contact the L-shaped plate 22 under the movement of the two first hydraulic rods 46.

[0034] The stroke of the two first hydraulic rods 46 is increased to push the "Chuan" block 47 to fit the angle steel to the surface of the L-shaped plate 22 again. At this time, the squeezing force of the "Chuan" block 47 and the clamping force of the clamping plate 35 and the two electric rubber wheels 39 can ensure the stability of the angle steel on the L-shaped plate 22. At this time, the two hydraulic punching rods 44 increase the stroke again to punch holes in the angle steel. The scraped waste will fall from the long groove 41 into the collection box 42, and the waste collection can be completed.

[0035] Among them, the discharging assembly 6 includes two second fixing plates 61. Both of the two second fixing plates 61 are fixedly installed on the top of the bottom plate 1. A stepped plate 63 is rotatably installed at the middle position of the two second fixing plates 61. A second motor 62 is fixedly installed on the right side of the rotating shaft of the stepped plate 63. A first crawler 64 and a second crawler 65 are respectively fixedly installed on the top and left side of the stepped plate 63. A third crawler 66 is fixedly installed on the front side of the second crawler 65; the first crawler 64, the second crawler 65 and the third crawler 66 are all driven by electric motors, and the third crawler 66 is fixedly installed on the right side of the top of the bottom plate 1;

[0036] The first crawler 64 and the second crawler 65 in a vertical relationship are started simultaneously to receive the angle steel. When the angle steel completely leaves the cutting assembly 5, the second motor 62 is started. The second motor 62 rotates counterclockwise to drive the stepped plate 63 to turn over. At this time, the angle steel will flip and fall onto the third crawler 66. Through the transportation of the third crawler 66, the blanking can be completed. After the angle steel is flipped, it will be buckled on the surface of the third crawler 66 in a triangular state. One is to improve the stability during transportation, and the other is to facilitate the stacking of multiple angle steels to save space.

[0037] Working principle:

[0038] When using the present invention, first feed the angle steel. Place the angle steel in the L-shaped plate 22. Start the clamping assembly 3. The second electric wheel 31 moves in the track 26, driving the entire clamping assembly 3 to move. After determining the appropriate position, start the first motor 33 and rotate the connecting plate 34 towards the direction of the vertical plate 32. When the connecting plate 34 is at a right angle to the vertical plate 32, the clamping plate 35 connected to the connecting plate 34 can play an adjusting role on the angle steel placed on the L-shaped plate 22. When the electric rubber wheels 39 come into contact with the angle steel, they will be forced to squeeze the first spring 38 through the round shaft 37. After the first spring 38 is stressed, it will then resume its stroke, and the two electric rubber wheels 39 can have a clamping effect on the angle steel. Rotating the electric rubber wheels 39 can push the angle steel from left to right; while the electric rubber wheels 39 are rotating, start the first electric wheel 25. Through the connecting rod 24, the push block 23 can also have a pushing effect on the angle steel on the surface of the L-shaped plate 22;

[0039] When the angle steel moves to the position of the punching assembly 4, stop the pushing effect of the electric rubber wheels 39 and the push block 23. First, increase the stroke of the two first hydraulic rods 46, and push the S-shaped block 47 to fit the angle steel to the surface of the L-shaped plate 22 again. At this time, the squeezing force of the S-shaped block 47 and the clamping forces of the clamping plate 35 and the two electric rubber wheels 39 can ensure the stability of the angle steel on the L-shaped plate 22. At this time, the two hydraulic punching rods 44 increase their strokes again to perform punching operations on the angle steel. The waste material cut and milled will fall into the collection box 42 from the long groove 41 to complete the collection;

[0040] After the punching operation is completed, the channel block 47 moves away, and the electric rubber wheel 39 and the pushing block 23 are restarted to move the angle steel. The angle steel is transported to the cutting assembly 5. The angle steel will first enter the through groove 57 of the trapezoidal block 54. However, at this time, the angle steel may not be at the center position of the through groove 57. At this time, the rubber telescopic block 59 moves upward. The rubber telescopic block 59 has a trapezoidal design that is narrower at the top and wider at the bottom. During the continuous upward movement, the angle steel will be clamped in the through groove 57. At this time, the stroke of the two second hydraulic rods 52 is increased to drive the cutter 53 to cut the angle steel. The impact force generated during cutting can be slightly relieved by the two second springs 58. When the two second hydraulic rods 52 are started, a sudden inertia will be generated, resulting in shaking. Therefore, the four telescopic rods 55 provided will adjust accordingly. After absorbing the impact force, they will return to the predetermined range again to complete the initialization;

[0041] After the cutting is completed, the rubber telescopic block 59 descends, and the pushing block 23 and the electric rubber wheel 39 push again. The angle steel that has been punched and cut will move to the discharging assembly 6 again. At this time, the first track 64 and the second track 65 in a vertical relationship are started simultaneously to receive the angle steel. When the angle steel completely leaves the cutting assembly 5, the second motor 62 is started. The second motor 62 rotates counterclockwise to drive the stepped plate 63 to turn over. At this time, the angle steel will turn over and fall onto the third track 66 and be transported by the third track 66 to complete the blanking.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle steel chamfering CNC machine tool, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly installed with a feeding assembly (2), and further includes, A linkage punching and discharging mechanism, which includes a clamping assembly (3). The clamping assembly (3) is fixedly installed on the right side of the feeding assembly (2). A punching assembly (4) is fixedly installed on the right side of the clamping assembly (3). A discharging assembly (6) is fixedly installed on the right side of the punching assembly (4); A cutting assembly (5). The cutting assembly (5) is fixedly installed on the right side of the punching assembly (4). The cutting assembly (5) includes a column (51). Two second hydraulic rods (52) are fixedly connected to the inner side of the top of the column (51). The telescopic ends of the two second hydraulic rods (52) are fixedly connected to a cutting knife (53). A trapezoidal block (54) is installed on the right side of the cutting knife (53). Four telescopic rods (55) are fixedly connected to the left side of the trapezoidal block (54). The telescopic ends of the four telescopic rods (55) are fixedly connected to the inner side of the top of the column (51). A weight block (56) is fixedly connected to the bottom of the trapezoidal block (54). A through groove (57) is formed through the interior of the trapezoidal block (54). A rubber telescopic block (59) is movably installed on the right side inside the through groove (57). Two second springs (58) are fixedly installed on the right side of the trapezoidal block (54). The right ends of the two second springs (58) are elastically connected to the weight block (56); The discharging assembly (6) includes two second fixing plates (61). Both of the two second fixing plates (61) are fixedly installed on the top of the bottom plate (1). A stepped plate (63) is rotatably installed at the middle position of the two second fixing plates (61). A second motor (62) is fixedly installed on the right side of the rotating shaft of the stepped plate (63). A first track (64) and a second track (65) are respectively fixedly installed on the top and left side of the stepped plate (63). A third track (66) is fixedly installed on the front side of the second track (65); The first track (64), the second track (65) and the third track (66) are all driven by electric motors. The third track (66) is fixedly installed on the top right side of the bottom plate (1).

2. The angle steel chamfering numerical control machine tool according to claim 1, characterized in that: The column (51) is fixedly installed on the top of the bottom plate (1). The inner side of the top of the column (51) is an inclined surface. The left top of the trapezoidal block (54) is also an inclined surface. The slope of the inclined surface of the column (51) is the same as that of the trapezoidal block (54). The rubber telescopic block (59) is driven by electricity and can move vertically in the through groove (57).

3. The angle steel chamfering CNC machine tool according to claim 2, wherein: The feeding assembly (2) includes a base (21). The base (21) is fixedly installed on the top of the bottom plate (1). An L-shaped plate (22) is fixedly installed on the top of the base (21). A pushing block (23) is slidably installed on the top of the L-shaped plate (22). A connecting rod (24) is fixedly connected to the right side of the pushing block (23). The other end of the connecting rod (24) is fixedly connected to a first electric wheel (25). A track (26) is movably sleeved on the outer edge of the first electric wheel (25). The track (26) is fixedly installed on the left side of the base (21).

4. The angle steel chamfering numerical control machine tool according to claim 3, characterized in that: The clamping assembly (3) comprises two second electric wheels (31), the two second electric wheels (31) are both movably clamped in the track (26), a longitudinal plate (32) is fixedly mounted on the top of the two second electric wheels (31), a connecting plate (34) is movably hinged on the top of the longitudinal plate (32), a first motor (33) is fixedly connected to the hinge between the longitudinal plate (32) and the connecting plate (34), a clamping plate (35) is fixedly connected to the right side of the connecting plate (34), the clamping plate (35) is provided with two square holes (36), a round shaft (37) is movably mounted in the two square holes (36), two groups of first springs (38) are elastically connected to the right sides of the two round shafts (37), the right ends of the two groups of first springs (38) are fixedly connected to the clamping plate (35), and the outer edges of the two round shafts (37) are sleeved with electric rubber wheels (39).

5. The angle steel chamfering CNC machine tool according to claim 4, wherein: The punching assembly (4) comprises a long slot (41), the long slot (41) being arranged at the middle right of the L-shaped plate (22), a collecting box (42) being fixedly mounted at the bottom of the long slot (41), a top plate (43) being fixedly mounted at the top of the long slot (41), two hydraulic punching rods (44) being fixedly mounted on the inner side of the top of the top plate (43), a first fixing plate (45) being fixedly mounted on the front side of the two hydraulic punching rods (44), two first hydraulic rods (46) being fixedly connected to the inner side of the first fixing plate (45), and a "川"-shaped block (47) being fixedly connected to the telescopic ends of the two first hydraulic rods (46).

6. The angle steel chamfering CNC machine tool according to claim 5, characterized in that: The top plate (43) is fixedly mounted on the top of the bottom plate (1); the two hydraulic punching rods (44) can pass through the long slot (41) when being extended or retracted; the tail end of the "川" block (47) is made of rubber and can contact the L-shaped plate (22) under the movement of the two first hydraulic rods (46).

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