Stainless steel round bar cutting device

Abstract

The invention relates to the technical field of metal cutting, and discloses a stainless steel round bar cutting device which comprises a base, a movable table, a cutting machine, a fixed clamping assembly, a movable clamping assembly, a rotary driving assembly, a movable driving assembly, a scale assembly and an automatic zero returning assembly. According to the device, firstly, through mutual cooperation of the fixed clamping assembly and the multiple sets of movable clamping assemblies, a round bar is always kept to be tightly clamped in the adjusting process, that is, the round bar is adjusted without being detached, and therefore the machining efficiency of the device is improved; meanwhile, after each time of cutting is completed, the scale assembly can be driven by the automatic zero returning assembly to return to zero, so that during continuous blanking, the cutting length and the cutting position do not need to be calculated repeatedly, accurate blanking cutting operation can be achieved only by adjusting the position of the cutting machine according to the length needed by blanking, and the production efficiency is improved. And the cutting precision of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, in particular to a stainless steel round bar cutting device. Background Art

[0002] During machining, it is usually necessary to cut stainless steel round bars. Since the lengths of the bars required in actual use vary, the bars need to be cut multiple times during round bar cutting. Existing stainless steel round bar cutting devices need to be clamped multiple times during cutting to obtain bars of different lengths, which reduces the actual machining efficiency. Summary of the invention

[0003] The object of the present invention is to provide a stainless steel round bar cutting device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A stainless steel round bar cutting device comprises a base, a moving platform, a cutting machine, a fixed clamping assembly, a moving clamping assembly, a rotating drive assembly, a moving drive assembly, a scale assembly and an automatic zeroing assembly; The fixed clamping assembly is installed on the base and is used to fix and clamp one end of the round rod; The base is fixedly connected with a first slide rail, and the mobile clamping assembly is provided with multiple groups, and the multiple groups of mobile clamping assemblies are slidably installed on the first slide rail, so that the protruding part of the round rod can be freely clamped by the multiple groups of mobile clamping assemblies, and the mobile clamping assembly and the round rod are in transverse rolling contact. After one cutting is completed, the mobile clamping assembly can be loosened. At this time, the clamping point can be freely adjusted through the transverse rolling contact between the mobile clamping assembly and the round rod. After the adjustment is completed, the mobile clamping assembly is locked. During the adjustment process, the round rod is always kept tightly clamped under the clamping of the fixed clamping assembly, so that the non-disassembly adjustment of the round rod can be realized; The base is fixedly connected with a second slide rail, the second slide rail is slidably connected with a second slide seat, the mobile platform is fixedly connected with the second slide seat, the rotary drive assembly is mounted on the mobile platform, and the cutting machine is mounted on the rotary drive assembly, so that the rotary drive assembly drives the cutting machine to rotate and lift, and the round bar is pressed down and cut; The mobile drive assembly is installed on the mobile platform, and a three-stage adjustment part is arranged inside the mobile drive assembly, which is used to drive the mobile platform to move and perform multi-stage adjustment, thereby improving the adjustment accuracy of the mobile drive assembly; The scale assembly is installed on the moving table, and the automatic zeroing assembly is installed between the scale assembly and the rotary drive assembly. When the rotary drive assembly drives the cutting machine to complete one cutting operation, the rotary drive assembly drives the automatic zeroing assembly to unlock. At this time, the automatic zeroing assembly releases the scale assembly, and the scale assembly automatically resets, so that the moving table and the scale automatically return to zero, and the scale assembly and the base are relatively locked again, facilitating the staff to measure the length of the next cut.

[0005] As a further solution of the present invention: the fixed clamping assembly includes a fixed stop frame, a fixed clamping seat, and a lifting clamping seat; The fixed stop frame is fixedly connected to the base, the fixed clamping seat is fixedly connected to the fixed stop frame, a first clamping groove is provided in the fixed clamping seat, clamping studs fixedly connected to the base are provided on both sides of the fixed clamping seat, a lifting frame is slidably connected to the clamping studs, a nut is threadedly connected to the clamping studs passing through the lifting frame, the lifting clamping seat is fixedly connected to the lifting frame, a second clamping groove is provided in the lifting clamping seat, and the first clamping groove and the second clamping groove cooperate with each other.

[0006] As a further solution of the present invention: the movable clamping assembly includes a first sliding seat, a fixed clamping seat, a lifting clamping seat, and a transverse roller; The first sliding seat is slidably connected to the first slide rail, the fixed stop frame is fixedly connected to the first sliding seat, a first clamping groove is provided in the fixed clamping seat, clamping studs fixedly connected to the first sliding seat are provided on both sides of the fixed clamping seat, a lifting frame is slidably connected to the clamping studs, a nut is threadedly connected to the clamping studs passing through the lifting frame, the lifting clamping seat is fixedly connected to the lifting frame, a second clamping groove is provided in the lifting clamping seat, and the transverse roller is installed in the first clamping groove and the second clamping groove.

[0007] As a further solution of the present invention: the rotary drive assembly includes a rotating arm and a hydraulic drive rod; The rotating arm is rotatably connected to the moving table, the cutting machine is installed on the rotating arm, the installation end of the hydraulic drive rod is rotatably installed on the moving table, and the output end of the hydraulic drive rod is rotatably connected to the rotating arm.

[0008] As a further solution of the present invention: the moving drive assembly includes a ball screw, a drive cylinder, and a three-stage adjustment part; The ball screw is rotatably connected between the fixed frames, the drive cylinder is fixedly connected to the nut of the ball screw, and the three-stage adjustment part is installed on the drive end of the ball screw.

[0009] As a further solution of the present invention: The three-stage adjustment part includes a first gear fixedly connected to the driving end of the ball screw. A first driving shaft and a second driving shaft are rotatably connected in the fixed frame. One end of the first driving shaft is fixedly connected to a second gear, and the second gear meshes with the first gear. The other end of the first driving shaft is fixedly connected to a third gear, and one end of the second driving shaft is fixedly connected to a fourth gear, and the fourth gear meshes with the third gear. The first gear and the third gear have the same structure, the second gear and the fourth gear have the same structure, and the pitch circle diameters of the first gear and the third gear are smaller than those of the second gear and the fourth gear. A set of cranks are respectively installed on the first driving shaft, the second driving shaft and the driving end of the ball screw.

[0010] As a further solution of the present invention: The scale assembly includes a fixed cylinder, a sliding telescopic rod, a sliding table, and a first spring; The fixed cylinder is fixedly connected to the side of the moving table away from the fixed clamping assembly. The sliding telescopic rod is slidably connected in the fixed cylinder. The sliding table is fixedly connected to the end of the sliding telescopic rod away from the fixed clamping assembly. The other end of the sliding telescopic rod is fixedly connected to a first stop block. The first spring is arranged between the first stop block and the fixed cylinder and sleeved on the outer wall of the sliding telescopic rod. A scale is arranged on the sliding table, and a pointer is installed on the moving table, and the pointer cooperates with the scale.

[0011] As a further solution of the present invention: The automatic zeroing assembly includes a first connecting rod, a magnetic suction friction head, a magnetic suction friction strip, and a lifting frame; A positioning groove is arranged at the bottom of the sliding table. The magnetic suction friction head is arranged in the positioning groove. An installation hole is arranged on one side of the positioning groove. A second connecting rod is slidably connected in the installation hole, and the magnetic suction friction head is fixedly connected to the second connecting rod. A second spring sleeved on the second connecting rod is arranged in the positioning groove. The magnetic suction friction strip is fixedly installed on the base and is arranged in the positioning groove and slides relative to the positioning groove. The magnetic suction friction head and the magnetic suction friction strip are magnetically attracted to each other and have strong friction; A first sliding groove is arranged in the moving table. Fixed rods fixedly connected to the moving table are arranged on both sides of the first sliding groove. The lifting frame is slidably connected to the fixed rods. A second sliding groove is arranged in the lifting frame. The first connecting rod is slidably installed in the first sliding groove and the second sliding groove. One end of the first connecting rod is fixedly connected to the second connecting rod. The other end of the first connecting rod passes through the first sliding groove and the second sliding groove and is fixedly connected to a limiting frame. A ball groove is arranged in the lifting frame, and a connecting ball is installed between the ball groove and the limiting frame. A second stop block is fixedly connected to the fixed rod, and a third spring sleeved on the fixed rod is arranged between the second stop block and the lifting frame; A driving groove is fixedly connected to the lifting frame, and a rotating lifting rod is fixedly connected to the rotating arm. One end of the rotating lifting rod is arranged in the driving groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: First, through the mutual cooperation of the fixed clamping component and multiple groups of movable clamping components, the present invention realizes the firm clamping of the round bar during the adjustment process, that is, the non-detachable adjustment of the round bar, thereby improving the processing efficiency of the present invention. At the same time, every time the cutting is completed in the present invention, the scale component will be reset under the drive of the automatic reset component. Therefore, during continuous blanking, there is no need to repeatedly calculate the cutting length and cutting position. It is only necessary to adjust the position of the cutting machine according to the required blanking length to achieve precise operation of the blanking cutting, improving the cutting accuracy of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a stainless steel round bar cutting device in the present invention.

[0014] Figure 2 It is Figure 1 a partial enlarged view of point A in

[0015] Figure 3 It is a schematic structural diagram of a stainless steel round bar cutting device in the present invention.

[0016] Figure 4 It is Figure 3 a partial enlarged view of point B in

[0017] Figure 5 It is a schematic structural diagram of a stainless steel round bar cutting device in the present invention.

[0018] Figure 6 It is Figure 5 a partial enlarged view of point C in

[0019] Figure 7 It is a schematic structural diagram of a stainless steel round bar cutting device in the present invention.

[0020] Figure 8 It is Figure 7 a partial enlarged view of point D in

[0021] Figure 9 It is a schematic structural diagram of a stainless steel round bar cutting device in the present invention.

[0022] Figure 10 It is Figure 9 a partial enlarged view of point E in

[0023] Figure 11 It is a schematic structural diagram of the movable clamping component in a stainless steel round bar cutting device in the present invention.

[0024] In the figure: 1 - base, 2 - first slide rail, 3 - fixed stop, 4 - first sliding seat, 5 - fixed clamping seat, 6 - first clamping groove, 7 - clamping stud, 8 - lifting frame, 9 - nut, 10 - lifting clamping seat, 11 - second clamping groove, 12 - fixed frame, 13 - second slide rail, 14 - second sliding seat, 15 - moving table, 16 - first gear, 17 - first drive shaft, 18 - second drive shaft, 19 - second gear, 20 - third gear, 21 - fourth gear, 22 - ball screw, 23 - drive cylinder, 24 - rotating arm, 25 - hydraulic drive rod, 26 - cutting machine, 27 - fixed cylinder, 28 - sliding telescopic rod, 29 - sliding table, 30 - first stop block, 31 - first spring, 32 - scale, 33 - pointer, 34 - first sliding groove, 35 - first connecting rod, 36 - positioning groove, 37 - magnetic friction head, 38 - mounting hole, 39 - second connecting rod, 40 - fixed rod, 41 - lifting frame, 42 - second sliding groove, 43 - second stop block, 44 - third spring, 45 - limiting frame, 46 - connecting ball, 47 - ball groove, 48 - magnetic friction strip, 49 - drive groove, 50 - rotating lifting rod, 51 - crank, 52 - second spring, 53 - fixed clamping assembly, 54 - moving clamping assembly, 55 - rotary drive assembly, 56 - moving drive assembly, 57 - scale assembly, 58 - automatic zeroing assembly, 59 - three - stage adjustment part, 60 - transverse roller. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] In one case of this embodiment, refer to Figures 1 to 11 , a stainless - steel round bar cutting device, including a base 1, a moving table 15, a cutting machine 26, a fixed clamping assembly 53, a moving clamping assembly 54, a rotary drive assembly 55, a moving drive assembly 56, a scale assembly 57, and an automatic zeroing assembly 58; the fixed clamping assembly 53 is installed on the base 1 and is used for fixedly clamping one end of the round bar; the first slide rail 2 is fixedly connected to the base 1, and multiple groups of the moving clamping assemblies 54 are slidably installed on the first slide rail 2; A second slide rail 13 is fixedly connected to the base 1. A second sliding seat 14 is slidably connected to the second slide rail 13. The moving table 15 is fixedly connected to the second sliding seat 14. The rotary drive assembly 55 is installed on the moving table 15. The cutting machine 26 is installed on the rotary drive assembly 55. Thus, the rotary drive assembly 55 drives the cutting machine 26 to rotate and lift, and press down on the round bar for cutting; The moving drive assembly 56 is installed on the moving table 15. A three-stage adjustment part 59 is arranged in the moving drive assembly 56; The scale assembly 57 is installed on the moving table 15, and the automatic zeroing assembly 58 is installed between the scale assembly 57 and the rotary drive assembly 55; The present invention first fixedly clamps the clamping end of the round bar through the fixed clamping assembly 53, and freely clamps the extending part of the round bar through multiple moving clamping assemblies 54. The moving clamping assemblies 54 are in transverse rolling contact with the round bar. After one cutting is completed, the moving clamping assemblies 54 can be loosened. At this time, the clamping point can be freely adjusted through the transverse rolling contact between the moving clamping assemblies 54 and the round bar. After the adjustment is completed, the moving clamping assemblies 54 are locked again. During the adjustment process, the round bar is always firmly clamped under the clamping of the fixed clamping assembly 53, so that the non-detachable adjustment of the round bar can be realized; After that, during the cutting and blanking process, the present invention drives the cutting machine 26 to rotate and press down through the rotary drive assembly 55. Then, the round bar is cut off by the saw blade rotating at high speed of the cutting machine 26. When the rotary drive assembly 55 rotates and presses down to the lowest point, the rotary drive assembly 55 drives the automatic zeroing assembly 58 to unlock, and the scale assembly 57 linearly slides relative to the base 1. At this time, the scale assembly 57 automatically resets under the action of the elastic force. Then, the rotary drive assembly 55 drives the cutting machine 26 to rise. At this time, the automatic zeroing assembly 58 closes again, and the scale assembly 57 is fixed relative to the base 1 under the action of the automatic zeroing assembly 58. The saw blade of the cutting machine 26 is flush with the cross section of the round bar, thereby realizing the zeroing of the equipment, that is, the zero point of the scale assembly 57 corresponds to the cross section of the round bar; After that, the moving table 15 can be driven to move through the moving clamping assemblies 54. At this time, the moving distance of the moving table 15 can be directly observed through the scale assembly 57. At the same time, since the cutting machine 26 moves synchronously with the moving table 15, that is, the relative moving distance between the cutting point of the cutting machine 26 and the round bar is the same as the moving distance of the moving table 15, the cutting length of the round bar can be accurately measured. After each cutting is completed, the scale assembly 57 will be zeroed under the drive of the automatic zeroing assembly 58. Therefore, during continuous blanking, there is no need to repeatedly calculate the cutting length and cutting position. Only by adjusting the position of the cutting machine 26 according to the required blanking length can the accurate operation of blanking cutting be realized.

[0027] In a case of this embodiment, please refer to Figure 1 and Figure 3 , the fixed clamping assembly 53 includes a fixed stop 3, a fixed clamping seat 5, and a lifting clamping seat 10; the fixed stop 3 is fixedly connected to the base 1, the fixed clamping seat 5 is fixedly connected to the fixed stop 3, a first clamping groove 6 is provided in the fixed clamping seat 5, clamping studs 7 fixedly connected to the base 1 are provided on both sides of the fixed clamping seat 5, a lifting frame 8 is slidably connected to the clamping studs 7, a nut 9 is threadedly connected to the clamping stud 7 passing through the lifting frame 8, the lifting clamping seat 10 is fixedly connected to the lifting frame 8, a second clamping groove 11 is provided in the lifting clamping seat 10, the lifting clamping seat 10 slides relative to the fixed clamping seat 5, and the first clamping groove 6 and the second clamping groove 11 are equilateral right-angled squares that are symmetric to each other; When the fixed clamping assembly 53 clamps a round bar, first loosen the nut 9, so as to lift the lifting clamping seat 10 through the lifting frame 8. At this time, the side length of the square clamping groove formed by the first clamping groove 6 and the second clamping groove 11 increases. At this time, the clamping end of the round bar can be inserted into the first clamping groove 6 and the second clamping groove 11. Then tighten the nut 9. At this time, under the rotation and pressing of the nut 9, the lifting frame 8 drives the lifting clamping seat 10 to slide and insert into the fixed clamping seat 5. At this time, the side length of the square clamping groove formed by the first clamping groove 6 and the second clamping groove 11 decreases, and finally fits on the outer edge of the round bar, thereby realizing four-point positioning and fixed clamping of the outer edge of the round bar. At this time, the part of the round bar that needs to be cut is suspended on one side of the fixed clamping assembly 53.

[0028] In a case of this embodiment, please refer to Figure 11 , the movable clamping assembly 54 includes a first sliding seat 4, a fixed clamping seat 5, a lifting clamping seat 10, and a transverse roller 60; the first sliding seat 4 is slidably connected to the first slide rail 2, the fixed stop 3 is fixedly connected to the first sliding seat 4, a first clamping groove 6 is provided in the fixed clamping seat 5, clamping studs 7 fixedly connected to the first sliding seat 4 are provided on both sides of the fixed clamping seat 5, a lifting frame 8 is slidably connected to the clamping studs 7, a nut 9 is threadedly connected to the clamping stud 7 passing through the lifting frame 8, the lifting clamping seat 10 is fixedly connected to the lifting frame 8, a second clamping groove 11 is provided in the lifting clamping seat 10, and the transverse roller 60 is installed in the first clamping groove 6 and the second clamping groove 11; After the clamping end of the round bar is clamped by the fixed clamping assembly 53, the moving clamping assembly 54 adjusts the relative position between the first sliding seat 4 and the round bar through the sliding connection between the first sliding seat 4 and the slide rail. During the adjustment process, the first sliding seat 4 drives the fixed clamping seat 5 and the lifting clamping seat 10 to move synchronously, so that the fixed clamping seat 5 and the lifting clamping seat 10 move to both sides of the round bar. Then, the nut 9 is tightened. At this time, under the rotation and pressure of the nut 9, the lifting frame 8 drives the lifting clamping seat 10 to slide into the fixed clamping seat 5. The side length of the square clamping groove formed by the first clamping groove 6 and the second clamping groove 11 is reduced, and the first clamping groove 6 and the second clamping groove 11 drive the transverse rollers 60 to fit on the outer edge of the round bar, thereby realizing the four-point positioning rolling clamping of the outer edge of the round bar.

[0029] In one case of this embodiment, please refer to Figure 5 , the rotation drive assembly 55 includes a rotating arm 24 and a hydraulic drive rod 25; the rotating arm 24 is rotatably connected to the moving table 15, the cutting machine 26 is installed on the rotating arm 24, the installation end of the hydraulic drive rod 25 is rotatably installed on the moving table 15, and the output end of the hydraulic drive rod 25 is rotatably connected to the rotating arm 24; The rotation drive assembly 55 drives the rotating arm 24 to rotate and lift around the moving table 15 through the hydraulic drive rod 25. The rotating arm 24 drives the cutting machine 26 to rotate and lift, thereby adjusting the relative position between the cutting machine 26 and the round bar. At the same time, the telescopic speed of the hydraulic drive rod 25 can be controlled, and then the rotation and descent speed of the cutting machine 26 can be adjusted, thereby realizing the adjustment of the cutting feed amount of the cutting machine 26 to the round bar.

[0030] In one case of this embodiment, please refer to Figure 7, the moving drive assembly 56 includes a ball screw 22, a drive cylinder 23, and a three-stage adjustment part 59; the ball screw 22 is rotatably connected between the fixed brackets 12, the drive cylinder 23 is fixedly connected to the nut of the ball screw 22, the drive cylinder 23 is fixedly connected to the moving table 15, the three-stage adjustment part is installed on the drive end of the ball screw 22, and the three-stage adjustment part 59 includes a first gear 16 fixedly connected to the drive end of the ball screw 22. A first drive shaft 17 and a second drive shaft 18 are rotatably connected in the fixed bracket 12. A second gear 19 is fixedly connected to one end of the first drive shaft 17, and the second gear 19 meshes with the first gear 16. A third gear 20 is fixedly connected to the other end of the first drive shaft 17. A fourth gear 21 is fixedly connected to one end of the second drive shaft 18, and the fourth gear 21 meshes with the third gear 20. The first gear 16 and the third gear 20 have the same structure, the second gear 19 and the fourth gear 21 have the same structure, and the pitch circle diameters of the first gear 16 and the third gear 20 are smaller than those of the second gear 19 and the fourth gear 21. A set of cranks 51 are respectively installed on the drive ends of the first drive shaft 17, the second drive shaft 18, and the ball screw 22; The moving drive assembly 56 first forms a two-stage accelerator through the mutual cooperation of the first gear 16, the second gear 19, the third gear 20, and the fourth gear 21. When the staff drives the second drive shaft 18 to rotate through the crank 51, first, the second drive shaft 18 drives the fourth gear 21 to rotate, the fourth gear 21 drives the third gear 20 to rotate, and the third gear 20 drives the first drive shaft 17 to rotate. During this process, an acceleration occurs between the first drive shaft 17 and the second drive shaft 18. At the same time, the second drive shaft 18 drives the first gear 16 to rotate through the second gear 19, and the first gear 16 drives the ball screw 22 to rotate. During this process, another acceleration occurs between the first drive shaft 17 and the ball screw 22. At this time, when the second drive shaft 18 rotates one circle, the ball screw 22 rotates N² circles. When the staff drives the first drive shaft 17 to rotate through the crank 51, when the first drive shaft 17 rotates one circle, the ball screw 22 rotates N circles. When the staff directly drives the ball screw 22 to rotate through the crank 51, when the crank 51 rotates one circle, the ball screw 22 rotates one circle. The value of N is related to the acceleration ratio between the first gear 16, the third gear 20 and the second gear 19, the fourth gear 21; And the adjustment speed of the crank 51 connected to the second drive shaft 18 is the fastest, but the adjustment accuracy is the worst. The adjustment speed of the crank 51 connected to the first drive shaft 17 is slower, but the accuracy is higher. And the adjustment speed of the crank 51 connected to the ball screw 22 is the slowest, but the adjustment accuracy is the highest; When the ball screw 22 rotates, the moving drive assembly 56 converts the rotational motion of the ball screw 22 into a linear motion of the drive cylinder 23 through the ball screw 22, and the drive cylinder 23 drives the moving table 15 to move.

[0031] In one case of this embodiment, please refer to Figure 2 、 Figure 7 and Figure 10 The scale assembly 57 includes a fixed cylinder 27, a sliding telescopic rod 28, a sliding table 29, and a first spring 31. The fixed cylinder 27 is fixedly connected to one side of the moving table 15 away from the fixed clamping assembly 53. The sliding telescopic rod 28 is slidably connected inside the fixed cylinder 27. The sliding table 29 is fixedly connected to one end of the sliding telescopic rod 28 away from the fixed clamping assembly 53. A first stopper 30 is fixedly connected to the other end of the sliding telescopic rod 28. The first spring 31 is arranged between the first stopper 30 and the fixed cylinder 27 and is sleeved on the outer wall of the sliding telescopic rod 28. A scale 32 is arranged on the sliding table 29, and a pointer 33 is installed on the moving table 15, and the pointer 33 cooperates with the scale 32. The scale assembly 57 first slidably installs and fixes the sliding table 29 through the sliding connection between the fixed cylinder 27 and the sliding telescopic rod 28. When the moving table 15 moves, first, the sliding table 29 is relatively fixed to the base 1 under the limitation of the automatic zeroing assembly 58. At this time, the moving table 15 drives the pointer 33 to move synchronously. At this time, the pointer 33 slides relatively with the sliding table 29. The moving table 15 compresses the first spring 31 through the fixed cylinder 27, and then, through the cooperation between the pointer 33 and the scale 32, accurately measures the relative position change amount between the moving table 15 and the sliding table 29. When the cutting is completed, the automatic zeroing assembly 58 is unlocked. At this time, the sliding table 29 loses its fixation, and the elastic potential energy of the first spring 31 is converted into the kinetic energy of the sliding table 29, so that the sliding table 29 slides relatively with the moving table 15 to reset, and at this time, the pointer 33 points to the zero point of the scale 32.

[0032] In one case of this embodiment, please refer to Figure 4 and Figure 6 The automatic zeroing assembly 58 includes a first connecting rod 35, a magnetic adsorption friction head 37, a magnetic adsorption friction strip 48, and a lifting frame 41. A positioning groove 36 is provided at the bottom of the sliding table 29. The magnetic suction friction head 37 is arranged in the positioning groove 36. An installation hole 38 is provided on one side of the positioning groove 36. A second connecting rod 39 is slidably connected in the installation hole 38. The magnetic suction friction head 37 is fixedly connected to the second connecting rod 39. A second spring 52 sleeved on the second connecting rod 39 is arranged in the positioning groove 36. The magnetic suction friction strip 48 is fixedly installed on the base 1 and is arranged in the positioning groove 36 and slides relative to the positioning groove 36. The magnetic suction friction head 37 and the magnetic suction friction strip 48 are magnetically attracted to each other and have strong friction force; A first sliding groove 34 is arranged in the moving table 15. Fixed rods 40 fixedly connected to the moving table 15 are arranged on both sides of the first sliding groove 34. The lifting frame 41 is slidably connected to the fixed rods 40. A second sliding groove 42 is arranged in the lifting frame 41. The first connecting rod 35 is slidably installed in the first sliding groove 34 and the second sliding groove 42. One end of the first connecting rod 35 is fixedly connected to the second connecting rod 39. The other end of the first connecting rod 35 passes through the first sliding groove 34 and is fixedly connected with a limiting frame 45 in the second sliding groove 42. A ball groove 47 is arranged in the lifting frame 41. A connecting ball 46 is installed between the ball groove 47 and the limiting frame 45. A second stop block 43 is fixedly connected to the fixed rod 40. A third spring 44 sleeved on the fixed rod 40 is arranged between the second stop block 43 and the lifting frame 41; A driving groove 49 is fixedly connected to the lifting frame 41. A rotating lifting rod 50 is fixedly connected to the rotating arm 24. One end of the rotating lifting rod 50 is arranged in the driving groove 49; The automatic zeroing assembly 58 first increases the pressure between the magnetic suction friction head 37 and the magnetic suction friction strip 48 through magnetic attraction between them. At the same time, since the greater the pressure, the greater the friction force, relative fixation between the magnetic suction friction head 37 and the magnetic suction friction strip 48 is realized. At this time, due to the relative sliding connection between the installation hole 38 and the second connecting rod 39, the sliding table 29 is relatively fixed to the base 1 under the limitation of the magnetic suction friction head 37 and the magnetic suction friction strip 48. When the moving table 15 and the sliding table 29 move relative to each other, first, the first connecting rod 35 slides relatively in the first sliding seat 4 and the second sliding groove 42 driven by the second connecting rod 39. At the same time, the limiting frame 45 rolls relative to the lifting frame 41 under the action of the connecting ball 46; When the cutting machine 26 finishes cutting, it rotates and descends to the lowest point driven by the rotating arm 24. At this time, the rotating arm 24 drives the rotating lifting rod 50 to rotate and rise to the highest point. At this time, the rotating lifting rod 50 drives the lifting frame 41 to rise through the driving groove 49 and compresses the third spring 44. The lifting frame 41 drives the limiting frame 45 to rise through the connecting ball 46. The limiting frame 45 drives the magnetic adsorption friction head 37 to rise through the first connecting rod 35 and the second connecting rod 39 and compresses the second spring 52. At this time, the magnetic adsorption friction head 37 and the magnetic adsorption friction strip 48 no longer contact each other, and the friction between them is lost. At this time, the sliding table 29 moves and resets in the direction close to the moving table 15 under the push of the first spring 31. The sliding table 29 drives the first connecting rod 35 to reset synchronously. And in this process, through the setting of the ball groove 47 and the connecting ball 46, the sliding friction between the limiting frame 45 and the lifting frame 41 is converted into rolling friction, thereby reducing the friction loss between the devices; And then when the cutting is over and the cutting machine 26 rotates and rises driven by the rotating arm 24, the rotating lifting rod 50 rotates and descends. At this time, the lifting frame 41 loses the lifting force and automatically resets under the elastic push of the third spring 44. At the same time, the second spring 52 pushes the magnetic adsorption friction head 37 to press down and reset synchronously. At this time, the magnetic adsorption friction head 37 and the magnetic adsorption friction strip 48 contact each other again and are relatively fixed again under the action of friction. At this time, the position of the cutting machine 26 is flush with the cross-section of the round bar, and at the same time, the pointer 33 points to the zero point of the scale 32. And the scale 32 is relatively fixed to the base 1, thereby realizing the automatic zeroing between the scale 32 and the pointer 33.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stainless steel round bar cutting device, characterized in that, It includes a base, a moving table, a cutting machine, a fixed clamping assembly, a moving clamping assembly, a rotary drive assembly, a moving drive assembly, a scale assembly, and an automatic zeroing assembly; The fixed clamping assembly is installed on the base and is used for fixedly clamping one end of a round bar; A first slide rail is fixedly connected to the base. Multiple sets of the moving clamping assemblies are provided. The multiple sets of moving clamping assemblies are slidably installed on the first slide rail, so as to freely clamp the protruding part of the round bar through the multiple sets of moving clamping assemblies. The moving clamping assembly makes a lateral rolling contact with the round bar. After one cutting is completed, the moving clamping assembly can be loosened. At this time, the clamping point can be freely adjusted through the lateral rolling contact between the moving clamping assembly and the round bar. After the adjustment is completed, the moving clamping assembly is locked again. During the adjustment process, the round bar always remains firmly clamped under the clamping of the fixed clamping assembly, and the non-detachable adjustment of the round bar can be realized; A second slide rail is fixedly connected to the base. A second sliding seat is slidably connected to the second slide rail. The moving table is fixedly connected to the second sliding seat. The rotary drive assembly is installed on the moving table. The cutting machine is installed on the rotary drive assembly, so as to drive the cutting machine to rotate and lift through the rotary drive assembly and press-cut the round bar; The moving drive assembly is installed on the moving table. A three-stage adjustment part is provided in the moving drive assembly, which is used to drive the moving table to move and perform multi-stage adjustment, so as to improve the adjustment accuracy of the moving drive assembly; The scale assembly is installed on the moving table, and the automatic zeroing assembly is installed between the scale assembly and the rotary drive assembly. When the rotary drive assembly drives the cutting machine to complete one cutting, the rotary drive assembly drives the automatic zeroing assembly to unlock. At this time, the automatic zeroing assembly releases the scale assembly, and the scale assembly automatically resets, so that the moving table and the scale are automatically zeroed, and the scale assembly and the base are relatively locked again, so as to facilitate the staff to measure the length of the next cut.

2. The stainless steel round bar cutting device according to claim 1, characterized in that, The fixed clamping assembly includes a fixed stop frame, a fixed clamping seat, and a lifting clamping seat; The fixed stop frame is fixedly connected to the base. The fixed clamping seat is fixedly connected to the fixed stop frame. A first clamping groove is provided in the fixed clamping seat. Clamping studs fixedly connected to the base are provided on both sides of the fixed clamping seat. A lifting frame is slidably connected to the clamping studs. A nut is threadedly connected to the clamping stud passing through the lifting frame. The lifting clamping seat is fixedly connected to the lifting frame. A second clamping groove is provided in the lifting clamping seat. The first clamping groove and the second clamping groove cooperate with each other.

3. The stainless steel round bar cutting device according to claim 2, characterized in that, The moving clamping assembly includes a first sliding seat, a fixed clamping seat, a lifting clamping seat, and a lateral roller; The first sliding seat is slidably connected to the first slide rail. The fixed stop bracket is fixedly connected to the first sliding seat. A first clamping groove is provided in the fixed clamping seat. Clamping studs fixedly connected to the first sliding seat are provided on both sides of the fixed clamping seat. A lifting frame is slidably connected to the clamping studs. A nut is threadedly connected to the clamping stud passing through the lifting frame. The lifting clamping seat is fixedly connected to the lifting frame. A second clamping groove is provided in the lifting clamping seat. The transverse roller is installed in the first clamping groove and the second clamping groove.

4. A stainless steel round bar cutting device according to claim 1, characterized in that, The rotation driving assembly includes a rotating arm and a hydraulic driving rod. The rotating arm is rotatably connected to the moving table. The cutting machine is installed on the rotating arm. The installation end of the hydraulic driving rod is rotatably installed on the moving table, and the output end of the hydraulic driving rod is rotatably connected to the rotating arm.

5. A stainless steel round bar cutting device according to claim 1, characterized in that, The moving driving assembly includes a ball screw, a driving cylinder, and a three-stage adjustment part. The ball screw is rotatably connected between the fixed brackets. The driving cylinder is fixedly connected to the nut of the ball screw. The three-stage adjustment part is installed on the driving end of the ball screw.

6. The stainless steel round bar cutting device according to claim 5, wherein, The three-stage adjustment part includes a first gear fixedly connected to the driving end of the ball screw. A first driving shaft and a second driving shaft are rotatably connected in the fixed bracket. A second gear is fixedly connected to one end of the first driving shaft. The second gear meshes with the first gear. A third gear is fixedly connected to the other end of the first driving shaft. A fourth gear is fixedly connected to one end of the second driving shaft. The fourth gear meshes with the third gear. The first gear and the third gear have the same structure. The second gear and the fourth gear have the same structure. And the pitch circle diameters of the first gear and the third gear are smaller than those of the second gear and the fourth gear. A set of cranks are respectively installed on the first driving shaft, the second driving shaft, and the driving end of the ball screw.

7. A stainless steel round bar cutting device according to claim 4, characterized in that, The scale assembly includes a fixed cylinder, a sliding telescopic rod, a sliding table, and a first spring. The fixed cylinder is fixedly connected to the side of the moving table away from the fixed clamping assembly. The sliding telescopic rod is slidably connected in the fixed cylinder. The sliding table is fixedly connected to the end of the sliding telescopic rod away from the fixed clamping assembly. A first stop block is fixedly connected to the other end of the sliding telescopic rod. The first spring is arranged between the first stop block and the fixed cylinder and sleeved on the outer wall of the sliding telescopic rod. A scale is provided on the sliding table. A pointer is installed on the moving table, and the pointer cooperates with the scale.

8. A stainless steel round bar cutting device according to claim 7, characterized in that, The automatic zeroing assembly includes a first connecting rod, a magnetic friction head, a magnetic friction strip, and a lifting frame. A positioning groove is provided at the bottom of the sliding table. The magnetic friction head is arranged in the positioning groove. An installation hole is provided on one side of the positioning groove. A second connecting rod is slidably connected in the installation hole. The magnetic friction head is fixedly connected to the second connecting rod. A second spring sleeved on the second connecting rod is provided in the positioning groove. The magnetic friction strip is fixedly installed on the base and arranged in the positioning groove and slides relative to the positioning groove. The magnetic friction head and the magnetic friction strip are magnetically attracted to each other and have strong friction. A first sliding groove is provided inside the mobile station. Fixed rods fixedly connected to the mobile station are provided on both sides of the first sliding groove. The lifting frame is slidably connected to the fixed rods. A second sliding groove is provided inside the lifting frame. The first connecting rod is slidably installed in the first sliding groove and the second sliding groove. One end of the first connecting rod is fixedly connected to the second connecting rod. The other end of the first connecting rod passes through the first sliding groove and is fixedly connected to a limiting frame in the second sliding groove. A ball groove is provided inside the lifting frame. Connecting balls are installed between the ball groove and the limiting frame. A second stop block is fixedly connected to the fixed rod. A third spring sleeved on the fixed rod is provided between the second stop block and the lifting frame; A driving groove is fixedly connected to the lifting frame. A rotating lifting rod is fixedly connected to the rotating arm. One end of the rotating lifting rod is arranged inside the driving groove.

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