A wear-resistant steel ball blank cutting device and working method thereof

Abstract

The present invention relates to a device for cutting wear-resistant steel ball blanks and a working method thereof. The device comprises a base, a column, a fixed ring seat, a guide rail, a wheel seat and a first guide roller. The base is provided with columns at both ends, a fixed ring seat is provided on the column, a plurality of guide rails are provided at equal angles on the fixed ring seat, a wheel seat is slidably provided on the guide rail, and the ends of the first guide roller are respectively connected to the wheel seats on the two fixed ring seats, a linear module is provided between the two columns, an electric slider is provided on the linear module, and a pusher rod is provided on the top side of the electric slider; a rotating ring seat and an arc groove linkage structure are adopted, and the first motor drives the rack to engage with the external teeth of the rotating ring seat for transmission, so as to automatically adjust the spacing between the first guide roller and the second guide roller to adapt to rods of different diameters, and greatly shorten the clamping and positioning time.

Description

Technical Field

[0001] The present invention relates to the technical field of wear-resistant steel ball processing, in particular to a wear-resistant steel ball blank cutting device and a working method thereof. Background Art

[0002] The material selection of wear-resistant steel ball blanks is mainly based on their final use. They must meet the requirements of high hardness, high wear resistance and appropriate impact toughness. Alloy steel round bars with a diameter of Φ20mm-Φ150mm are commonly used. They are segmented by sawing or laser cutting to complete the preparation of wear-resistant steel ball blanks.

[0003] Existing equipment is mostly used for processing bars of a single diameter. Changing the bar specification requires manual adjustment of the fixture and relies on manual visual positioning. When the bar ovality is greater than 0.5mm, the cutting eccentricity reaches 12%-18%. Single-point static cutting results in a "V"-shaped taper in the cross-section of thick materials, and an unmelted layer remains at the bottom. The existing cutting process requires multiple positioning, and each section is time-consuming. Summary of the Invention

[0004] The problem solved by the present invention is to provide a device for cutting wear-resistant steel ball blanks and a working method thereof, which solves the technical problems that existing devices are mostly used for processing bars of a single diameter, manual adjustment of the clamp is required to change the bar specifications, and manual visual positioning is relied upon. When the bar ovality is greater than 0.5mm, the cutting eccentricity reaches 12%-18%, and single-point static cutting results in a "V"-shaped taper in the cross section of thick materials, and an unmelted layer remains at the bottom. The existing cutting process requires multiple positioning and a long time consumption per stage.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for cutting wear-resistant steel ball blanks, comprising a base, a column, a fixed ring seat, a guide rail, a wheel seat and a first guide roller, wherein columns are installed at both ends of the base, a fixed ring seat is installed on the column, a plurality of guide rails are provided at equal angles on the fixed ring seat, a wheel seat is slidably installed on the guide rail, and the ends of the first guide roller are respectively connected to the wheel seats on the two fixed ring seats, a linear module is installed between the two columns, an electric slider is installed on the linear module, and a pusher rod is installed on the top side of the electric slider;

[0007] Guide rods are installed on the wheel seat, and several of the guide rods are respectively connected to the mounting arm and the adjustment seat. A laser cutting head is installed on the mounting arm, and the laser of the laser cutting head passes through the center line of the fixed ring seat. A wheel plate is installed on the mounting arm, and a wheel arm is installed on the adjustment seat. A second guide roller is installed on both the wheel plate and the wheel arm, and the first guide roller and the second guide roller are coaxially arranged.

[0008] Preferably, a support arm is installed at the end of the base, an electric push rod cocentric with the fixed ring seat is installed on the support arm, a baffle is installed at the telescopic end of the electric push rod, and a discharge slide is installed on the side wall of the base.

[0009] Preferably, a supporting ring seat is provided on the inner side of the fixed ring seat, and a rotating ring seat is rotatably mounted on the outer side of the supporting ring seat.

[0010] Preferably, the fixed ring seat is provided with a plurality of translation slots parallel to the guide rail at equal angles, the rotating ring seat is provided with a plurality of arcuate slots at equal angles, and the guide rod passes through the translation slots and the arcuate slots.

[0011] Preferably, a fixing frame is provided on the top of the two fixing ring seats, a threaded rod and a sliding rod are installed between the fixing frames, a sliding arm is threadedly installed on the threaded rod, and the sliding arm and the sliding rod are slidably installed.

[0012] Preferably, a first motor is installed on the fixed frame, an output end of the first motor is connected to the threaded rod, and racks are installed at both ends of the sliding arm, and the racks are engaged with external teeth on the outer side of the rotating ring seat.

[0013] Preferably, a belt groove is provided on one of the first guide rollers, a mounting seat is installed on one of the wheel seats, a second motor is installed on the mounting seat, a synchronous wheel is installed on the output end of the second motor, and the synchronous wheel and the belt groove are connected by a synchronous belt transmission.

[0014] Preferably, a third motor is installed in one of the adjustment seats, and an output end of the third motor is connected to the wheel arm.

[0015] A working method for a wear-resistant steel ball blank cutting device, the specific operating steps of the working method are as follows:

[0016] Step 1: Place the rod-shaped blank between the two first guide rollers located below the fixed ring seat. The electric slider moves along the linear module, and the push rod pushes the rod-shaped blank to move until the end of the rod-shaped blank contacts the baffle. The baffle is moved by the electric push rod, and the horizontal distance between the baffle and the laser cutting head is adjusted according to the required length of the rod-shaped blank.

[0017] Step 2: The threaded rod is driven to rotate by the first motor, and then the threaded sliding arm is driven to move along the sliding rod. At this time, the rack at the end of the sliding arm cooperates with the meshing external teeth to drive the rotating ring seat to rotate on the supporting ring seat. As the rotating ring seat rotates, the arc groove acts on the guide rod, driving the guide rod to move along the translation groove. At this time, the wheel seat connected to the guide rod moves along the guide rail until the first guide roller contacts the main body of the rod blank, and the second guide roller contacts the rod blank after the cutting position of the rod blank. At this time, the position of the laser cutting head is adjusted close to the rod blank to complete the centering, positioning, clamping and fixing of the rod blank;

[0018] Step 3: The cutting depth of the laser cutting head is the radius length of the rod-shaped blank. The second motor drives the synchronous wheel to rotate, and the cooperation of the synchronous belt and the belt groove drives one of the first guide rollers to rotate. As the first guide roller rotates, the rod-shaped blank rotates synchronously, and then the laser cutting head is used to cut the rod-shaped blank. After the cutting is completed, the wheel arm is driven to rotate by the third motor, and then the position of one of the second guide rollers is adjusted. At this time, the distance between the two second guide rollers is greater than the diameter of the rod-shaped blank. The cut rod-shaped blank automatically falls and is collected in the unloading chute.

[0019] The beneficial effects of the present invention are: adopting a rotating ring seat and an arc groove linkage structure, the first motor drives the rack to engage with the external teeth of the rotating ring seat, automatically adjusting the distance between the first guide roller and the second guide roller to adapt to bars of different diameters, and greatly shortening the clamping and positioning time;

[0020] The double guide rollers work together to press, the first guide roller clamps the main body of the bar, and the second guide roller accurately fixes the rear end of the cutting area to prevent deviation caused by cutting vibration;

[0021] The second motor drives the first guide roller to rotate through the synchronous belt to realize the automatic adjustment of the bar speed. The linear module controls the push rod to feed in sections to achieve continuous multi-section cutting.

[0022] The laser cutting head is linked to the adjustment seat through the guide rod to automatically adjust the distance between the laser cutting head and the rod blank. During cutting, the incision shape is controlled, the beam action area is expanded, the bottom slag is reduced, the heat-affected zone is reduced, and precise defocus adjustment is performed.

[0023] The laser cutting head cuts along the center line of the bar, with a cross-section taper of less than 0.5°. The subsequent turning allowance is reduced by 70%, reducing blank loss while ensuring cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the third overall structure of the present invention;

[0027] Figure 4 It is a cross-sectional view of the adjustment seat of the present invention.

[0028] Legend:

[0029] 1. Base; 2. Column; 3. Fixed ring seat; 4. Guide rail; 5. Wheel seat; 6. First guide roller; 7. Linear module; 8. Electric slider; 9. Ejector rod; 10. Guide rod; 11. Mounting arm; 12. Laser cutting head; 13. Wheel plate; 14. Adjustment seat; 15. Wheel arm; 16. Second guide roller; 17. Support arm; 18. Electric push rod; 19. Baffle; 20. Unloading slide; 21. Translation groove; 22. Support ring seat; 23. Rotating ring seat; 24. Arc groove; 25. External gear; 26. Fixed frame; 27. First motor; 28. Threaded rod; 29. ​​Sliding arm; 30. Rack; 31. Belt groove; 32. Mounting seat; 33. Second motor; 34. Synchronous wheel; 35. Synchronous belt; 36. Third motor. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Specific examples are given below.

[0032] See also Figures 1 to 4 A wear-resistant steel ball blank cutting device includes a base 1, a column 2, a fixed ring seat 3, a guide rail 4, a wheel seat 5 and a first guide roller 6. Columns 2 are installed at both ends of the base 1, a fixed ring seat 3 is installed on the column 2, a plurality of guide rails 4 are arranged at equal angles on the fixed ring seat 3, a wheel seat 5 is slidably installed on the guide rail 4, and the ends of the first guide roller 6 are respectively connected to the wheel seats 5 on the two fixed ring seats 3. A linear module 7 is installed between the two columns 2, and an electric slider 8 is installed on the linear module 7, and A push rod 9 is installed on the top side of the electric slider 8, and a support arm 17 is installed at the end of the base 1. An electric push rod 18 is installed on the support arm 17, which is cocentric with the fixed ring seat 3. A baffle 19 is installed at the telescopic end of the electric push rod 18. By moving the baffle 19, it is convenient to adjust the horizontal distance between the baffle 19 and the laser cutting head 12, thereby facilitating the subsequent cutting of billets of different lengths. A discharge chute 20 is installed on the side wall of the base 1, and the cut billets fall into the discharge chute 20 for transfer and collection;

[0033] A guide rod 10 is installed on the wheel seat 5, and several guide rods 10 are respectively connected to the mounting arm 11 and the adjustment seat 14. A laser cutting head 12 is installed on the mounting arm 11, and the laser of the laser cutting head 12 passes through the center line of the fixed ring seat 3. A wheel plate 13 is installed on the mounting arm 11, and a wheel arm 15 is installed on the adjustment seat 14. A second guide roller 16 is installed on the wheel plate 13 and the wheel arm 15. The first guide roller 6 and the second guide roller 16 are coaxially arranged. A support ring seat 22 is provided on the inner side of the fixed ring seat 3, and a rotating ring seat 23 is rotatably installed on the outer bearing of the support ring seat 22. Several translation grooves 21 parallel to the guide rail 4 are opened at equal angles on the fixed ring seat 3, and several arc grooves 24 are opened at equal angles on the rotating ring seat 23. The guide rod 10 passes through the plane The shift groove 21 and the arc groove 24, a fixed frame 26 is provided on the top of the two fixed ring seats 3, a threaded rod 28 and a slide rod are installed between the fixed frames 26, a slide arm 29 is threadedly installed on the threaded rod 28, and the slide arm 29 is slidably installed with the slide rod, a first motor 27 is installed on the fixed frame 26, the output end of the first motor 27 is connected to the threaded rod 28, and a rack 30 is installed at both ends of the slide arm 29, and the rack 30 is engaged with the outer teeth 25 on the outer side of the rotating ring seat 23. The rotating ring seat 23 and the arc groove 24 linkage structure is adopted, and the rack 30 is driven by the first motor 27 to engage with the outer teeth 25 of the rotating ring seat 23 for transmission, and the spacing between the first guide roller 6 and the second guide roller 16 is automatically adjusted to adapt to bars of different diameters, and the clamping and positioning time is greatly shortened;

[0034] The double guide rollers work together to press, the first guide roller 6 clamps the main body of the bar, and the second guide roller 16 accurately fixes the rear end of the cutting area to prevent deviation caused by cutting vibration;

[0035] The laser cutting head 12 is linked to the adjustment seat 14 through the guide rod 10 to automatically adjust the distance between the laser cutting head 12 and the rod blank. During cutting, the incision shape is controlled, the beam action area is expanded, the bottom slag is reduced, the heat-affected zone is reduced, and precise defocus adjustment is performed.

[0036] The laser cutting head 12 cuts along the center line of the bar, and the cross-section taper is less than 0.5°. The subsequent turning allowance is reduced by 70%, reducing the blank loss while ensuring the cutting accuracy.

[0037] A belt groove 31 is formed on one of the first guide rollers 6, a mounting seat 32 is mounted on one of the wheel seats 5, a second motor 33 is mounted on the mounting seat 32, a synchronous wheel 34 is mounted on the output end of the second motor 33, and the synchronous wheel 34 is connected to the belt groove 31 via a synchronous belt 35. The second motor 33 drives the first guide roller 6 to rotate via the synchronous belt 35, thereby realizing automatic adjustment of the bar material rotation speed. The linear module 7 controls the segmented feeding of the push rod 9 to realize continuous multi-segment cutting.

[0038] A third motor 36 is installed in one of the adjustment seats 14, and the output end of the third motor 36 is connected to the wheel arm 15. The third motor 36 drives the wheel arm 15 to rotate, and then adjusts the position of one of the second guide rollers 16. At this time, the distance between the two second guide rollers 16 is greater than the diameter of the rod-shaped blank, and the cut rod-shaped blank automatically falls and is collected in the unloading chute 20.

[0039] Working principle:

[0040] The rod-shaped blank is placed between the two first guide rollers 6 located below the fixed ring seat 3, and the electric slider 8 moves along the linear module 7, and the push rod 9 pushes the rod-shaped blank to move until the end of the rod-shaped blank contacts the baffle 19, and the baffle 19 is moved by the electric push rod 18. The horizontal distance between the baffle 19 and the laser cutting head 12 is adjusted according to the required length of the rod-shaped blank, and the first motor 27 drives the threaded rod 28 to rotate, thereby driving the threaded slide arm 29 to move along the slide rod. At this time, the rack 30 at the end of the slide arm 29 cooperates with the meshing external teeth 25, driving the rotating ring seat 23 to rotate on the support ring seat 22. As the rotating ring seat 23 rotates, the arc groove 24 acts on the guide rod 10, driving the guide rod 10 to move along the translation groove 21. At this time, the wheel seat 5 connected to the guide rod 10 moves along the guide rail 4 until the first guide roller 6 is in contact with the rod-shaped blank. The laser cutting head 12 is in contact with the main body of the material, and the second guide roller 16 is in contact with the rod-shaped blank after the cutting part of the rod-shaped blank. At this time, the position of the laser cutting head 12 is adjusted to be close to the rod-shaped blank to complete the centering, clamping and fixing of the rod-shaped blank. The cutting depth of the laser cutting head 12 is the radius length of the rod-shaped blank. The synchronous wheel 34 is driven to rotate by the second motor 33, and the synchronous belt 35 is matched with the belt groove 31 to drive one of the first guide rollers 6 to rotate. As the first guide roller 6 rotates, the rod-shaped blank rotates synchronously, and then the laser cutting head 12 is used to cut the rod-shaped blank. After the cutting is completed, the wheel arm 15 is driven to rotate by the third motor 36, and then the position of one of the second guide rollers 16 is adjusted. At this time, the distance between the two second guide rollers 16 is greater than the diameter of the rod-shaped blank, and the cut rod-shaped blank automatically falls and is collected in the unloading chute 20.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for cutting wear-resistant steel ball blanks, characterized in that: It comprises a base (1), a column (2), a fixed ring seat (3), a guide rail (4), a wheel seat (5) and a first guide roller (6), wherein columns (2) are installed at both ends of the base (1), a fixed ring seat (3) is installed on the column (2), a plurality of guide rails (4) are arranged at equal angles on the fixed ring seat (3), a wheel seat (5) is slidably installed on the guide rail (4), and the ends of the first guide roller (6) are respectively connected to the wheel seats (5) on the two fixed ring seats (3), a linear module (7) is installed between the two columns (2), an electric slider (8) is installed on the linear module (7), and a push rod (9) is installed on the top side of the electric slider (8); A guide rod (10) is mounted on the wheel seat (5), and a plurality of the guide rods (10) are respectively connected to the mounting arm (11) and the adjustment seat (14); a laser cutting head (12) is mounted on the mounting arm (11), and the laser of the laser cutting head (12) passes through the center line of the fixed ring seat (3); a wheel plate (13) is mounted on the mounting arm (11), and a wheel arm (15) is mounted on the adjustment seat (14); a second guide roller (16) is mounted on both the wheel plate (13) and the wheel arm (15), and the first guide roller (6) and the second guide roller (16) are coaxially arranged; A third motor (36) is installed in one of the adjustment seats (14), and an output end of the third motor (36) is connected to the wheel arm (15).

2. The wear-resistant steel ball blank cutting device according to claim 1, characterized in that: A support arm (17) is installed at the end of the base (1), an electric push rod (18) cocentric with the fixed ring seat (3) is installed on the support arm (17), a baffle (19) is installed at the telescopic end of the electric push rod (18), and a discharge slide (20) is installed on the side wall of the base (1).

3. The wear-resistant steel ball blank cutting device according to claim 2, characterized in that: A support ring seat (22) is provided on the inner side of the fixed ring seat (3), and a rotating ring seat (23) is rotatably mounted on the outer side of the support ring seat (22).

4. The wear-resistant steel ball blank cutting device according to claim 3, characterized in that: The fixed ring seat (3) is provided with a plurality of translation slots (21) parallel to the guide rail (4) at equal angles, the rotating ring seat (23) is provided with a plurality of arcuate slots (24) at equal angles, and the guide rod (10) passes through the translation slots (21) and the arcuate slots (24).

5. The wear-resistant steel ball blank cutting device according to claim 4, characterized in that: A fixing frame (26) is provided on the top of the two fixing ring seats (3), a threaded rod (28) and a sliding rod are installed between the fixing frames (26), a sliding arm (29) is threadedly installed on the threaded rod (28), and the sliding arm (29) is slidably installed with the sliding rod.

6. The wear-resistant steel ball blank cutting device according to claim 5, characterized in that: A first motor (27) is mounted on the fixed frame (26), an output end of the first motor (27) is connected to a threaded rod (28), and racks (30) are mounted on both ends of the sliding arm (29), and the racks (30) are meshed with external teeth (25) on the outer side of the rotating ring seat (23).

7. The wear-resistant steel ball blank cutting device according to claim 6, characterized in that: A belt groove (31) is formed on one of the first guide rollers (6), a mounting seat (32) is mounted on one of the wheel seats (5), a second motor (33) is mounted on the mounting seat (32), a synchronous wheel (34) is mounted on the output end of the second motor (33), and the synchronous wheel (34) and the belt groove (31) are connected to each other through a synchronous belt (35).

8. A working method for a wear-resistant steel ball blank cutting device according to claim 7, characterized in that: The specific steps of this working method are as follows: Step 1: Place the rod-shaped blank between the two first guide rollers (6) located below the fixed ring seat (3), move the electric slider (8) along the linear module (7), and push the rod-shaped blank to move through the push rod (9) until the end of the rod-shaped blank contacts the baffle (19), and move the baffle (19) through the electric push rod (18), and adjust the horizontal distance between the baffle (19) and the laser cutting head (12) according to the required length of the rod-shaped blank; Step 2: The threaded rod (28) is driven to rotate by the first motor (27), thereby driving the threaded sliding arm (29) to move along the sliding rod. At this time, the rack (30) at the end of the sliding arm (29) cooperates with the meshing external teeth (25), driving the rotating ring seat (23) to rotate on the supporting ring seat (22). As the rotating ring seat (23) rotates, the arc groove (24) acts on the guide rod (10), driving the guide rod (10) to move along the translation groove (21). At this time, the wheel seat (5) connected to the guide rod (10) moves along the guide rail (4) until the first guide roller (6) contacts the main body of the rod-shaped blank, and at the same time, the second guide roller (16) contacts the rod-shaped blank after the cutting portion of the rod-shaped blank, and at this time, the position of the laser cutting head (12) is adjusted close to the rod-shaped blank, completing the centering positioning, clamping and fixing of the rod-shaped blank; Step 3: The cutting depth of the laser cutting head (12) is the radius length of the rod-shaped blank. The second motor (33) drives the synchronous wheel (34) to rotate, and the synchronous belt (35) cooperates with the belt groove (31) to drive one of the first guide rollers (6) to rotate. As the first guide roller (6) rotates, the rod-shaped blank rotates synchronously, and then the laser cutting head (12) cuts the rod-shaped blank. After the cutting is completed, the third motor (36) drives the wheel arm (15) to rotate, and then adjusts the position of one of the second guide rollers (16). At this time, the distance between the two second guide rollers (16) is greater than the diameter of the rod-shaped blank. The cut rod-shaped blank automatically falls and is collected in the discharge chute (20).

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