Automatic chamfering device for circular ring

Abstract

The application provides a circular ring automatic chamfering device, which comprises a main frame, a first conveying belt, an outer edge chamfering assembly, a second conveying belt, a first clamping assembly and a second clamping assembly are arranged on the main frame; when the first clamping assembly moves a workpiece on the first conveying belt to the outer edge chamfering assembly, the second clamping assembly is used for moving the workpiece with the completed outer edge chamfering to the second conveying belt; a first inner hole chamfering assembly, a turnover assembly and a second inner hole chamfering assembly are further arranged on the main frame; the first inner hole chamfering assembly is used for clamping the workpiece on the second conveying belt and realizing first end chamfering of the inner hole; the turnover assembly is used for turning over the workpiece with the completed first end chamfering of the inner hole on the second conveying belt; and the second inner hole chamfering assembly is used for realizing second end chamfering of the inner hole of the workpiece with the completed turning over on the second conveying belt. The circular ring automatic chamfering device can realize chamfering of the outer edge and the inner hole on one equipment, so that the equipment is simplified, the cost is reduced and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of chamfering technology for ring components, and more specifically, to an automatic chamfering device for rings. Background Technology

[0002] Magnets are generally manufactured using powder metallurgy, and after production, they are ground by a grinding machine. Grinding is the most common and widely used machining process. Most workpieces need to be ground to the required shape on their outer surface or at corners.

[0003] In some specialized applications, magnets are often processed into ring-shaped structures, requiring chamfering at both the top and bottom edges of the outer edge and the top and bottom edges of the inner hole. Current technology typically involves multiple chamfering machines performing multiple chamfering operations, with transfer boxes needed between different chamfering processes. This not only occupies a large space but also wastes significant manpower and resources during the transfer process, leading to increased processing costs and low processing efficiency. Summary of the Invention

[0004] To overcome at least one of the defects in the prior art, the present invention provides an automatic chamfering device for rings, which can realize automatic workpiece conveying and can perform chamfering of outer edge and inner hole on a single machine, simplifying processing equipment, reducing labor costs and improving work efficiency.

[0005] The technical solution adopted by this invention is to provide an automatic chamfering device for a ring: it includes a main frame, on which a first conveyor belt, an outer edge chamfering component, and a second conveyor belt are sequentially arranged along its length. The main frame is also provided with a first clamping component and a second clamping component that can reciprocate along its length. When the first clamping component is used to clamp the workpiece at the discharge end of the first conveyor belt and move it above the outer edge chamfering component, the second clamping component is used to clamp the chamfered workpiece on the outer edge chamfering component and move it to the feed end of the second conveyor belt. The main frame is also sequentially connected with a first inner hole chamfering component, a flipping component, and a second inner hole chamfering component located above the second conveyor belt. The first inner hole chamfering component is used to clamp the workpiece on the second conveyor belt and chamfer the first end of the inner hole. The flipping component is used to clamp the workpiece on the second conveyor belt with the chamfered first end of the inner hole and flip it over. The second inner hole chamfering component is used to clamp the workpiece on the second conveyor belt with the flipped surface and chamfer the second end of the inner hole.

[0006] Compared with the prior art, the automatic chamfering device for rings of the present invention has the following advantages:

[0007] The automatic chamfering device of this invention is a specialized chamfering mechanism with a circular structure. It includes two independent feeding conveyor belts, an outer edge chamfering assembly, and two clamping assemblies. The two clamping assemblies are used to move un-chamfered workpieces from the first conveyor belt to the outer edge chamfering assembly for outer edge chamfering, and to continue transferring chamfered workpieces to the second conveyor belt. The two clamping assemblies operate synchronously, enabling continuous and uninterrupted transfer of workpieces to the next process step, with a compact rhythm and fast transfer speed. Additionally, a first inner hole chamfering assembly, a flipping assembly, and a second inner hole chamfering assembly are also installed on the main frame at positions corresponding to the second conveyor belt. Throughout the process, after the workpiece has undergone outer edge chamfering and is transferred to the second conveyor belt, it moves forward as the second conveyor belt runs. The first inner hole chamfering component first picks up the workpiece whose outer edge has been chamfered on the second conveyor belt and chamfers the first end of its inner hole. After chamfering, the workpiece is placed back on the second conveyor belt and continues to be conveyed forward. When it moves to the position of the flipping component, the flipping component is used to pick up the workpiece and flip it over. After flipping, the workpiece is placed back on the second conveyor belt and continues to move forward. When it moves to the position of the second inner hole chamfering component, the second inner hole chamfering component picks up the workpiece on the second conveyor belt and chamfers the second end of its inner hole. Then it is placed back on the second conveyor belt, thus realizing the chamfering treatment of the upper and lower ends of the inner hole of the workpiece. The whole process adopts a continuous assembly line processing procedure with a tight rhythm, automatic chamfering, no manual intervention, and high work efficiency.

[0008] Furthermore, the main frame is provided with a mounting bracket, and a sliding plate that can slide along the length direction of the first conveyor belt is connected to the mounting bracket. The mounting bracket is also connected with a connecting rod, a connecting plate and a drive motor. One end of the connecting plate is fixedly connected to the output shaft of the drive motor, and the other end of the connecting plate is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to one end of the sliding plate.

[0009] Furthermore, the outer edge chamfering assembly includes a workpiece support platform and a first drive unit for driving the workpiece support platform to rotate horizontally. The first clamping assembly is provided with a pressure plate that can move up and down and rotate around its own axis. The main frame is also connected to an outer edge chamfering grinding wheel, a second drive unit for driving its horizontal rotation, and a translation drive unit for driving the outer edge chamfering grinding wheel to move closer to and away from the workpiece support platform. The outer peripheral wall of the outer edge chamfering grinding wheel is recessed with a chamfering groove. When the workpiece is positioned between the workpiece support platform and the pressure plate, when the translation drive unit drives the outer edge chamfering grinding wheel to the chamfering position, the two side walls of the chamfering groove are respectively in contact with the outer edges of the two ends of the workpiece.

[0010] As an improvement, the main frame is also provided with a grinding wheel mounting seat that can slide back and forth, and the grinding wheel mounting seat is connected to the drive end of the translation drive unit; a vertically arranged dovetail groove support plate is connected to the grinding wheel mounting seat, the second drive unit is connected to the slide plate of the dovetail groove support plate, and the outer edge chamfering grinding wheel is connected to the drive end of the second drive unit.

[0011] Furthermore, the first clamping assembly includes a first mounting base, on which a first servo motor, a first lead screw, a first lead screw slider, and a vertically slidable first sliding plate are connected. The first lead screw is driven and connected to the first servo motor, the first lead screw slider is helically engaged outside the first lead screw, and the first sliding plate is connected to the first lead screw slider. A first fixing plate is also connected to the first mounting base below the first sliding plate. At least two first grippers that can be folded up and down are hinged to the outer periphery of the first fixing plate. A first linkage plate is hinged to each first gripper, and the end of each first linkage plate away from the first gripper is respectively hinged to the outer peripheral wall of the first sliding plate. A pressure driving cylinder is connected to the first sliding plate or the first fixing plate. The pressure plate is connected to the piston rod of the pressure driving cylinder. The pressure plate is located inside each of the first grippers, and the outer diameter of the pressure plate is smaller than the outer diameter of the workpiece.

[0012] Furthermore, the second clamping assembly includes a second mounting base, on which a second servo motor, a second lead screw, a second lead screw slider, and a vertically slidable second sliding plate are connected. The second lead screw is driven and connected to the second servo motor, the second lead screw slider is helically engaged outside the second lead screw, and the second sliding plate is connected to the second lead screw slider. A second fixing plate is also connected to the second mounting base below the second sliding plate. At least two second grippers that can be folded up and down are hinged to the outer periphery of the second fixing plate. A second linkage plate is hinged to each second gripper, and the end of each second linkage plate away from the second gripper is respectively hinged to the outer peripheral wall of the second sliding plate.

[0013] Furthermore, the first and second inner hole chamfering components have the same structure, both including a first gantry bracket spanning above the second conveyor belt. A first lifting plate and a first lifting drive unit for driving its lifting are connected to the crossbeam of the first gantry bracket. Two opposing first clamping blocks and a first clamping drive unit for driving the two first clamping blocks to move closer and further apart are connected to the first gantry bracket. A vertical slide and a second lifting drive unit for driving its lifting are also connected to the crossbeam of the first gantry bracket. A vertically arranged chamfering motor is connected to the vertical slide, and a conical inner hole chamfering grinding head is connected to the output shaft of the chamfering motor.

[0014] In a further improvement, the first lifting plate is also connected to a mounting plate, which has a clearance through hole for the inner hole chamfering grinding head to pass through, and a dust collection hood surrounding the inner hole chamfering grinding head is connected to the mounting plate, and a dust collection pipe connected to the dust collection hood is connected to an external adsorption device.

[0015] Furthermore, the flipping assembly includes a second gantry bracket spanning above the second conveyor belt. A second lifting plate and a third lifting drive unit for driving its lifting are connected to the crossbeam of the second gantry bracket. Two opposing fixed seats and a second clamping drive unit for driving the two fixed seats to move closer and further apart are connected to the second lifting plate. Rotary drivers are connected to the inner walls of the two opposing fixed seats, and the drive ends of the two rotary drivers are connected to second clamping blocks.

[0016] Other improvements and advantages of the invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the automatic chamfering device for rings according to the present invention;

[0018] Figure 2 This is another schematic diagram of the outer edge chamfering component structure in this invention;

[0019] Figure 3 This is a schematic diagram of the material transfer mechanism in this invention;

[0020] Figure 4 This is a schematic diagram of the internal hole chamfering assembly structure in this invention;

[0021] Figure 5 This is a schematic diagram of the inner hole chamfering assembly from another angle in this invention;

[0022] Figure 6 This is a schematic diagram of the structure of the flipping component in this invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Main frame; 2. First conveyor belt; 3. Outer edge chamfering assembly; 300. Workpiece support table; 301. First drive unit; 302. Pressure plate; 303. Outer edge chamfering grinding wheel; 304. Second drive unit; 305. Translation drive unit; 306. Chamfering groove; 4. Second conveyor belt; 5. First clamping assembly; 501. First mounting base; 502. First servo motor; 503. First lead screw; 504. First lead screw slider; 505. First sliding plate; 506. First fixing plate; 507. First gripper; 508. First linkage plate; 509. Pressure drive cylinder; 6. Second clamping assembly; 601. Second mounting base; 7. First inner hole chamfering assembly; 7 01. First portal frame; 702. First lifting plate; 703. First lifting drive unit; 704. First clamping block; 705. First clamping drive unit; 706. Vertical slide; 707. Second lifting drive unit; 708. Chamfering motor; 709. Inner hole chamfering grinding head; 710. Mounting plate; 8. Tilting assembly; 801. Second portal frame; 802. Second lifting plate; 803. Third lifting drive unit; 804. Fixed seat; 805. Second clamping drive unit; 806. Rotary driver; 807. Second clamping block; 9. Second inner hole chamfering assembly; 10. Mounting bracket; 11. Slide plate; 12. Connecting rod; 13. Connecting plate; 14. Drive motor. Detailed Implementation

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1-6As shown in the figure, this application discloses an automatic chamfering device for a circular ring, including a rectangular main frame 1. A first conveyor belt 2, an outer edge chamfering assembly 3, and a second conveyor belt 4 are sequentially arranged along the length of the main frame 1. The main frame 1 is also equipped with a first clamping assembly 5 and a second clamping assembly 6 capable of reciprocating along its length. The first clamping assembly 5 and the second clamping assembly 6 work in conjunction with each other. Specifically, when the first clamping assembly 5 clamps the workpiece at the discharge end of the first conveyor belt 2 and moves it above the outer edge chamfering assembly 3, the second clamping assembly 6 clamps the chamfered workpiece on the outer edge chamfering assembly 3 and moves it to the feed end of the second conveyor belt 4. More specifically, in the above structure, when the first conveyor belt 2 conveys the first workpiece, the first… The clamping assembly 5 clamps the workpiece and transfers it to the outer edge chamfering assembly 3 for chamfering of both the upper and lower edges. After the outer edge chamfering is completed, the first clamping assembly 5 returns to its original position above the discharge end of the first conveyor belt 2 to clamp the second workpiece. At the same time, the second clamping assembly 6 clamps the chamfered workpiece on the outer edge chamfering assembly 3. Then, the first clamping assembly 5 moves the clamped second workpiece toward the position of the outer edge chamfering assembly 3. Meanwhile, the second clamping assembly 6 moves the first chamfered workpiece to the feed end of the second conveyor belt 4. With the continuous reciprocating motion of the first clamping assembly 5 and the second clamping assembly 6, the workpieces on the first conveyor belt 2 are moved sequentially to the outer edge chamfering assembly 3 for chamfering and transferred to the second conveyor belt 4 for the next chamfering action.

[0029] Additionally, the main frame 1 is sequentially connected to a first inner hole chamfering assembly 7, a flipping assembly 8, and a second inner hole chamfering assembly 9 located above the second conveyor belt 4. Here, "above" is not limited to directly above the second conveyor belt 4, but can also be above its side. Specifically, the first inner hole chamfering assembly 7 is used to clamp the workpiece on the second conveyor belt 4 and chamfer the first end of the inner hole, the flipping assembly 8 is used to clamp the workpiece on the second conveyor belt 4 after the first end of the inner hole has been chamfered and flip it over, and the second inner hole chamfering assembly 9 is used to clamp the workpiece on the second conveyor belt 4 after it has been flipped over and chamfer the second end of the inner hole. Throughout the process, after the workpiece is chamfered at the outer edge and transferred to the second conveyor belt 4, it moves forward as the second conveyor belt 4 runs. The first inner hole chamfering component 7 first clamps the workpiece on the second conveyor belt 4 and chamfers the upper end of its inner hole. After chamfering, the workpiece is placed back on the second conveyor belt 4 and continues to be conveyed forward. When it moves to the position of the flipping component 8, the flipping component 8 is used to clamp the workpiece and flip its upper and lower end faces. After flipping, the workpiece is placed back on the second conveyor belt 4 and continues to move forward. When it moves to the position of the second inner hole chamfering component 7, it continues to move forward. When the corner component 9 is in position, the second inner hole chamfering component 9 clamps the workpiece on the second conveyor belt 4 and chamfers the upper end of its inner hole. Then it is placed back on the second conveyor belt 4, thereby achieving the chamfering treatment of the upper and lower ends of the inner hole of the workpiece. The whole process adopts a continuous assembly line processing procedure. Workpieces with chamfered outer edges are conveyed on the second conveyor belt 4 at intervals, so that the inner hole chamfering of the two end faces can be completed on the workpiece on the second conveyor belt 4 during the movement. The rhythm is compact, the chamfering is automatic, no manual intervention is required, and the work efficiency is high.

[0030] For more details, please see the appendix. Figure 3 A mounting bracket 10 is provided on the main frame 1. A sliding plate 11 that can slide along the length of the first conveyor belt 2 is connected to the mounting bracket 10. A connecting rod 12, a connecting plate 13 and a drive motor 14 are also connected to the mounting bracket 10. One end of the connecting plate 13 is fixedly connected to the output shaft of the drive motor 14. The other end of the connecting plate 13 is hinged to one end of the connecting rod 12. The other end of the connecting rod 12 is hinged to one end of the sliding plate 11. Preferably, the mounting bracket 10 is a portal frame mounting bracket. Two vertically distributed and parallel linear guide rails are connected to the crossbeam of the portal frame mounting bracket. Several linear sliders are connected to each of the two linear guide rails. The slide plate 11 is connected to several linear sliders to achieve smooth movement. In addition, the connecting plate 13 also rotates in the plane along the direction of movement of the slide plate 11. Here, the connecting plate 13 acts like an eccentric wheel. That is, as the drive motor 14 runs, it drives the connecting plate 13 to rotate, which in turn drives the connecting rod 12 to drive the slide plate 11 to reciprocate along the length of the crossbeam. Finally, the first clamping assembly 5 and the second clamping assembly 6 reciprocate, driving the continuously fed workpieces to automatically and continuously flow backward on the production line.

[0031] Additionally, in this embodiment, see Appendix Figure 1 , 2 The outer edge chamfering assembly 3 includes a workpiece support platform 300 and a first drive unit 301 for driving the workpiece support platform 300 to rotate horizontally. The first clamping assembly 5 is provided with a pressure plate 302 that can move up and down and rotate around its own axis. When the workpiece moves from the first conveyor belt 2 to the workpiece support platform 300, the pressure plate 302 moves down and presses against the upper end of the workpiece. The first drive unit 301 is used to drive the workpiece to rotate around its axis. Furthermore, an outer edge chamfering grinding wheel 303, a second drive unit 304 for driving the outer edge chamfering grinding wheel 303 to rotate, and a mechanism for driving the outer edge chamfering grinding wheel are also connected to the rear side of the workpiece support platform 300 on the main frame 1. 303 moves closer to and further away from the workpiece support table 300. More specifically, a chamfering groove 306 is recessed on the outer peripheral wall of the outer chamfering grinding wheel 303. The cross-section of the chamfering groove 306 is trapezoidal, and the width of the opening end is greater than the width of its bottom. Therefore, when the workpiece is positioned between the workpiece support table 300 and the pressure plate 302, when the translation drive unit 305 drives the outer chamfering grinding wheel 303 to move forward to the chamfering position, the two side walls of the chamfering groove 306 at this position are respectively in contact with the outer edges of the two ends of the workpiece. With the operation of the first drive unit 301 and the second drive unit 304, the upper and lower ends of the outer edge of the workpiece are simultaneously chamfered. Preferably, the first drive unit 301 and the second drive unit 304 are both servo motor sets with reducers, and the translation drive unit 305 is a dovetail groove support plate structure with motor drive. The outer edge chamfering grinding wheel 303 and the second drive unit 304 can move back and forth synchronously through motor drive to ensure that the chamfering groove 306 of the outer edge chamfering grinding wheel 303 is accurately aligned with the outer edge of the workpiece.

[0032] In addition, to further ensure that the outer edge chamfering grinding wheel 303 can be aligned with the outer edge of the workpiece when it moves, in this embodiment, a grinding wheel mounting seat 307 that can slide back and forth is also provided on the main frame 1, and the grinding wheel mounting seat 307 is connected to the driving end of the translation drive unit 305; a vertically arranged dovetail groove support plate 308 is connected to the grinding wheel mounting seat 307, the second drive unit 304 is connected to the slide plate of the dovetail groove support plate 308, and the outer edge chamfering grinding wheel 303 is connected to the driving end of the second drive unit 304. Through the cooperation of the translation drive unit 305 and the dovetail groove support plate 308, the outer edge chamfering grinding wheel 303 can be adjusted back and forth and up and down.

[0033] On the other hand, see Appendix Figure 3In this embodiment, the first clamping assembly 5 includes a first mounting base 501. A first servo motor 502, a first lead screw 503, a first lead screw slider 504, and a vertically slidable first sliding plate 505 are connected to the first mounting base 501. The first lead screw 503 is driven by the first servo motor 502. The first lead screw slider 504 is helically engaged with the outside of the first lead screw 503, and the first sliding plate 505 is connected to the first lead screw slider 504. A first fixing plate 506 is also connected to the first mounting base 501 below the first sliding plate 505. Specifically, the first fixing plate 506 is connected to the first mounting base 501 via multiple circumferentially distributed and vertically extending connecting rods. A connecting rod slides through the first sliding plate 505; at least two first grippers 507 that can be folded up and down are hinged to the outer periphery of the first fixed plate 506. Preferably, there are three first grippers 507, which are evenly distributed along the circumference; each first gripper 507 is hinged to a first linkage plate 508, and the end of each first linkage plate 508 away from the first gripper 507 is respectively hinged to the outer peripheral wall of the first sliding plate 505; the operation of the first servo motor 502 drives the first lead screw slider 504 to move the first sliding plate 505 up and down, and then the three first linkage plates 508 drive the three first grippers 507 to rotate downward to clamp the outer wall of the workpiece, or to rotate upward to release and detach from the outer wall of the workpiece.

[0034] In addition, a pressure-driven cylinder 509 is connected to the first sliding plate 505 in the above structure. The pressure plate 302 is connected to the piston rod of the pressure-driven cylinder 509. Specifically, a bearing is connected to the lower end of the piston rod of the pressure-driven cylinder 509. A mounting hole is opened in the middle of the pressure plate 302, and the outer ring of the bearing is fixed in the mounting hole, thereby realizing the rotation of the pressure plate 302. This ensures that when the workpiece is chamfered at the outer edge, the pressure plate 302 is always pressed against the upper surface of the workpiece, ensuring the accuracy of the chamfer position and improving the product qualification rate. The pressure plate 302 is located inside each of the first grippers 507, and the outer diameter of the pressure plate 302 is smaller than the outer diameter of the workpiece. When the first clamping assembly 5 clamps the workpiece on the first conveyor belt 2 and moves it onto the workpiece support platform 300, the pressure drive cylinder 509 drives the pressure plate 302 to move down and press against the upper end face of the workpiece. After the workpiece is positioned, the three first grippers 507 release, and the outer edge chamfering grinding wheel 303 approaches the workpiece to perform a chamfering operation. In some other embodiments, the pressure drive cylinder 509 can also be connected to the first fixed plate 506, provided that it does not interfere with the clamping process of each of the first grippers 507.

[0035] Similarly, the second clamping assembly 6 in this embodiment has most of the same structure as the first clamping assembly 5, the only difference being that the second clamping assembly 6 does not require a pressing structure. Specifically, the second clamping assembly 6 includes a second mounting base 601, on which a second servo motor, a second lead screw, a second lead screw slider, and a vertically slidable second sliding plate are connected. The second lead screw is driven and connected to the second servo motor, the second lead screw slider is helically engaged with the outside of the second lead screw, and the second sliding plate is connected to the second lead screw slider. A second fixing plate is also connected to the second mounting base 601 below the second sliding plate. Three second grippers that can be folded up and down are hinged to the outer periphery of the second fixing plate. Each second gripper is hinged with a second linkage plate, and the end of each second linkage plate away from the second gripper is respectively hinged to the outer peripheral wall of the second sliding plate. The clamping principle of the second clamping assembly 6 is the same as that of the first clamping assembly 5, and will not be described again here.

[0036] For others, see Appendix Figure 4 and 5 In this embodiment, the first inner hole chamfering assembly 7 and the second inner hole chamfering assembly 9 have the same structure, both including a first gantry bracket 701 spanning above the second conveyor belt 4. A first lifting plate 702 and a first lifting drive unit 703 for driving its lifting and lowering are connected to the crossbeam of the first gantry bracket 701. Two opposing first clamping blocks 704 and a first clamping drive unit 705 for driving the two first clamping blocks 704 to move closer and further apart are connected to the first lifting plate 702. A vertical slide block 706 and a second lifting drive unit 707 for driving its lifting and lowering are also connected to the crossbeam of the first gantry bracket 701. A vertically arranged chamfering motor 708 is connected to the vertical slide block, and a tapered inner hole chamfering grinding head 709 is connected to the output shaft of the chamfering motor 708. Preferably, two sets of vertically arranged linear guide rail assemblies are connected to the crossbeam of the first gantry bracket 701, and a first sliding plate 505 is connected to the slider of one of the linear guide rail assemblies. Here, the first lifting drive unit is a cylinder structure. In other embodiments, the first lifting drive unit may also be a hydraulic cylinder or a linear motor. Similarly, the vertical slide 706 is connected to the slider of another set of linear guide assemblies.

[0037] Additionally, a horizontally arranged linear guide rail is connected to the front side wall of the first lifting plate 702, and two first clamping blocks 704 are respectively connected to the corresponding linear guide rails via sliders; the first clamping drive unit 705 is horizontally connected to the rear side wall of the first lifting plate 702, and includes a horizontally arranged clamping motor, a lead screw, and two lead screw nuts, with the threads of the two lead screw nuts having opposite directions. The two sliders are respectively connected to the two lead screw nuts, that is, when the clamping motor drives the lead screw to rotate, the two lead screw nuts with opposite directions of rotation move closer to each other or further away from each other, thereby driving the two sliders and the corresponding first clamping blocks 704 to move closer to and further away, so as to achieve the function of clamping and releasing the workpiece.

[0038] In the above structure, the first lifting drive unit 703 drives the first lifting plate 702 to rise and fall, thereby clamping the workpiece; the second lifting drive unit 707 drives the chamfering motor 708 to rise and fall, mainly to adjust the chamfering position of the workpiece. Specifically, during clamping, the first lifting drive unit 703 drives the first lifting plate 702 to descend to the clamping position, and the two first clamping blocks 704 clamp the workpiece. Then, the first lifting drive unit 703 drives the first lifting plate 702 to rise to the working position, and the second lifting drive unit 707 drives the chamfering motor 708 to descend until the inner hole chamfering grinding head 709 contacts the end of the inner hole of the workpiece. As the inner hole chamfering grinding head 709 rotates, the second lifting drive unit 707 continues to drive the chamfering motor 708 to descend until the workpiece is chamfered to the required size. In this structure, since the descent of the inner hole chamfering grinding head 709 is used for the chamfering amount feed, the accuracy requirement is higher. Therefore, the second lifting drive unit 707 here adopts a servo motor combined with a lead screw pair structure for driving.

[0039] On the other hand, participating in the attached Figure 4 In this embodiment, a horizontal mounting plate 710 is also connected to the first lifting plate 702. The mounting plate 710 has a clearance through hole for the inner hole chamfering grinding head 707 to pass through, and a dust collection hood (not shown in the figure) surrounding the inner hole chamfering grinding head 709 is connected to the mounting plate 710. The dust collection hood is connected to a dust collection pipe (not shown in the figure) that communicates with an external adsorption device. This structure realizes automatic dust removal during the chamfering grinding process and improves the workshop working environment.

[0040] See appendix Figure 6The flipping assembly 8 includes a second gantry bracket 801 spanning above the second conveyor belt 4. A second lifting plate 802 is connected to the crossbeam of the second gantry bracket 801, and a third lifting drive unit 803 is used to drive the second lifting plate 802 to move up and down. Two oppositely arranged fixed seats 804 and a second clamping drive unit 805 are connected to the second lifting plate 802 to drive the two fixed seats 804 to move closer and further apart from each other. Rotary drivers 806 are connected to the inner walls of the two fixed seats 804, and the driving ends of the two rotary drivers 806 are connected to second clamping blocks 807. After the inner hole at one end of the workpiece is chamfered, the third lifting drive unit 803 drives the second lifting plate 802 to descend until the two second clamping blocks 807 are located outside the workpiece. The second clamping drive unit 805 drives the two fixed seats 804 to move closer together to clamp the workpiece. Then, the second lifting plate 802 is raised to a set height, and the two rotary drives 806 operate to flip the upper and lower ends of the workpiece. Then, the second lifting plate 802 descends again to the clamping height, the two fixed seats 804 move away from each other, and the second clamping blocks 807 release the clamping limit on the workpiece. The workpiece continues to move forward until the second clamping assembly 6 grips the workpiece and completes the chamfering of the inner hole at the other end. In this structure, the second clamping drive unit 805 has the same structure as the first clamping drive unit 705, and will not be described again here. In addition, since the second lifting plate 802 only needs to ensure that it can grasp the workpiece in this structure, there is no requirement for adjustment accuracy, so the third lifting drive unit 803 can be a pneumatic cylinder, hydraulic cylinder, or electric cylinder.

[0041] In the description of this application, the reference to the term "this embodiment" refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A device for automatically chamfering a circular ring, characterized in that: The utility model provides a kind of outer edge chamfering device, including main frame (1), first conveying belt (2) are sequentially provided on the main frame (1) along its length direction, outer edge chamfering assembly (3), second conveying belt (4), first clamping assembly (5) and second clamping assembly (6) capable of reciprocating along its length direction are further provided on the main frame (1), and when the first clamping assembly (5) is used to clamp the workpiece of first conveying belt (2) discharge end and moves to the above of outer edge chamfering assembly (3), the second clamping assembly (6) is used to clamp the workpiece of outer edge chamfering assembly (3) chamfering completion and moves to the second conveying belt (4);First inner hole chamfering assembly (7), turnover assembly (8) and second inner hole chamfering assembly (9) located above the second conveying belt (4) are further connected on the main frame (1);First inner hole chamfering assembly (7) is used to clamp the workpiece on the second conveying belt (4) and realizes inner hole first end chamfering, turnover assembly (8) is used to clamp the workpiece on the second conveying belt (4) inner hole first end chamfering completion and is carried out upside-down, and second inner hole chamfering assembly (9) is used to clamp the workpiece on the second conveying belt (4) upside-down completion and realizes inner hole second end chamfering; The outer edge chamfering assembly (3) includes workpiece support table (300) and first drive unit (301) for driving the workpiece support table (300) horizontal rotation, the first clamping assembly (5) is provided with the pressure plate (302) capable of moving up and down and capable of rotating around its own axis;The first clamping assembly (5) includes first mounting seat (501), and the first mounting seat (501) is connected with first servo motor (502), first screw rod (503), first screw rod sliding block (504) and first sliding plate (505) slidably along vertical direction, the first screw rod (503) is drivenly connected with first servo motor (502), the first screw rod sliding block (504) is spirally matched outside the first screw rod (503), and the first sliding plate (505) is connected with the first screw rod sliding block (504);The first mounting seat (501) is further connected with first fixed plate (506) below the first sliding plate (505), and the outer periphery of the first fixed plate (506) is hinged with at least two first clamping jaws (507) capable of folding up and down, each first clamping jaw (507) is hinged with first linkage plate (508), and the outer peripheral wall of the first sliding plate (505) is hinged to the end away from the first clamping jaw (507) of each first linkage plate (508) respectively;Pressure driving cylinder (509) is connected on the first sliding plate (505) or first fixed plate (506), the pressure plate (302) is connected on the piston rod of the pressure driving cylinder (509), the pressure plate (302) is located inside each first clamping jaw (507), and the outer diameter of the pressure plate (302) is less than the outer diameter of the workpiece.

2. The automatic chamfering device for circular ring according to claim 1, characterized in that: The main rack (1) is provided with a mounting bracket (10), the mounting bracket (10) is connected with a sliding plate (11) capable of sliding along the length direction of the first conveying belt (2), the mounting bracket (10) is also connected with a connecting rod (12), a connecting plate (13) and a driving motor (14), one end of the connecting plate (13) is fixedly connected with the output shaft of the driving motor (14), the other end of the connecting plate (13) is hingedly connected with one end of the connecting rod (12), the other end of the connecting rod (12) is hingedly connected with one end of the sliding plate (11).

3. The automatic chamfering device of circular ring according to claim 1, characterized in that: The main rack (1) is also connected with an outer edge chamfer grinding wheel (303), a second driving unit (304) for driving the horizontal rotation of the outer edge chamfer grinding wheel (303) and a translation driving unit (305) for driving the outer edge chamfer grinding wheel (303) to approach and move away from the workpiece support table (300), the outer circumferential wall of the outer edge chamfer grinding wheel (303) is concave and provided with a chamfer groove (306), when the workpiece is positioned between the workpiece support table (300) and the pressing plate (302), when the translation driving unit (305) drives the outer edge chamfer grinding wheel (303) to move to the chamfer position, the two side walls of the chamfer groove (306) are respectively in contact with the outer edges of the two ends of the workpiece.

4. The ring automatic chamfering device according to claim 3, characterized in that: The main rack (1) is also provided with a grinding wheel mounting seat capable of sliding forward and backward, and the grinding wheel mounting seat is connected with the driving end of the translation driving unit (305); the grinding wheel mounting seat is connected with a vertically arranged dovetail groove supporting plate, the second driving unit (304) is connected to the sliding plate of the dovetail groove supporting plate, and the outer edge chamfer grinding wheel (303) is connected to the driving end of the second driving unit (304).

5. The automatic chamfering device for circular ring according to claim 1 or 2, characterized in that: The second clamping assembly (6) comprises a second mounting seat (601), the second mounting seat (601) is connected with a second servo motor, a second lead screw, a second lead screw sliding block and a second sliding plate which can slide vertically, the second lead screw is drivingly connected with the second servo motor, the second lead screw sliding block is screwedly matched outside the second lead screw, and the second sliding plate is connected with the second lead screw sliding block; the second mounting seat (601) is also connected with a second fixed plate below the second sliding plate, the outer periphery of the second fixed plate is hingedly connected with at least two second clamping jaws capable of being folded up and down, each second clamping jaw is hingedly connected with a second linkage plate, and one end of each second linkage plate away from the second clamping jaw is hingedly connected to the outer circumferential wall of the second sliding plate.

6. The ring automatic chamfering device according to claim 1, characterized in that: The first inner hole chamfer assembly (7) and the second inner hole chamfer assembly (9) are identical in structure, and each comprises a first door-shaped support (701) which is horizontally arranged above the second conveying belt (4), a first lifting plate (702) and a first lifting driving unit (703) for driving the first lifting plate (702) to lift are connected to the horizontal beam of the first door-shaped support (701), two first clamping blocks (704) which are oppositely arranged and a first clamping driving unit (705) for driving the two first clamping blocks (704) to move close to or away from each other are connected to the first lifting plate (702), a vertical sliding seat (706) and a second lifting driving unit (707) for driving the vertical sliding seat (706) to lift are further connected to the horizontal beam of the first door-shaped support (701), a chamfer motor (708) which is vertically arranged is connected to the vertical sliding seat (706), and a conical inner hole chamfer grinding head (709) is connected to the output shaft of the chamfer motor (708).

7. The ring automatic chamfering device according to claim 6, characterized in that: A mounting plate (710) is further connected to the first lifting plate (702), an avoiding through hole for the inner hole chamfer grinding head (709) to pass through is formed in the mounting plate (710), a dust collection cover which surrounds the outer portion of the inner hole chamfer grinding head (709) is connected to the mounting plate (710), and a dust collection pipe which is in communication with an external dust collection device is connected to the dust collection cover.

8. The automatic chamfering device of circular ring according to claim 1 or 6 or 7, characterized in that: The turnover assembly (8) comprises a second door-shaped support (801) which is horizontally arranged above the second conveying belt (4), a second lifting plate (802) and a third lifting driving unit (803) for driving the second lifting plate (802) to lift are connected to the horizontal beam of the second door-shaped support (801), two fixed seats (804) which are oppositely arranged and a third clamping driving unit (805) for driving the two fixed seats (804) to move close to or away from each other are connected to the second lifting plate (802), a rotary driver (806) is connected to the inner wall of each of the two fixed seats (804), and a second clamping block (807) is connected to the driving end of each of the two rotary drivers (806).

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