Workpiece edge cutting equipment

Abstract

The present invention provides a workpiece edge cutting device comprising a bed, a rotating mechanism, an outer cutting tool, an inner cutting tool, and an actuator mounted on the bed; the rotating mechanism is used to rotate the workpiece; the inner cutting tool is positioned inwardly of the workpiece edge, and the outer cutting tool is positioned outwardly of the workpiece edge; and the actuator is used to force the inner and outer cutting tools into relative proximity to shear the workpiece edge. The present invention has a scientific and rational structural design, and after removing flash waste from end cap workpieces, the cut surface becomes smoother and burr-free, achieving high cutting efficiency and improved cutting quality, while also being cost-effective and highly efficient.

Description

Technical Field

[0001] The present invention relates to the field of automation technology, in particular to a workpiece edge cutting device. Background Art

[0002] At present, the process for similar end cap products in industrial production is generally to use a press to cold stamp and form them using a mold, and then cut off the end face to complete the production and processing of the end cap products. However, this processing is still limited to manual cutting. For example, manual cutting can be used to cut the materials. However, the disadvantages of manual operation are that the quality of the manually processed products is uncontrollable, it is time-consuming, and once the products are mass-produced, a lot of manpower and material resources are required.

[0003] In addition, although laser cutting with high processing precision can achieve higher precision in removing the flash waste of end cap products, mass production of products will inevitably occupy the use of one or more laser cutting machines, and the equipment used in this process will have the disadvantage of high production costs. Summary of the Invention

[0004] The object of the present invention is to provide a workpiece edge cutting device to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a workpiece edge cutting device, which includes: a bed, and a rotating mechanism, an outer tool, an inner tool and an actuator arranged on the bed;

[0006] The rotating mechanism is used to drive the workpiece to rotate;

[0007] The inner tool is arranged on the inner side of the edge of the workpiece, and the outer tool is arranged on the outer side of the edge of the workpiece;

[0008] The actuator is used to force the inner tool and the outer tool to be relatively close to each other so as to perform shearing on the edge of the workpiece.

[0009] Furthermore, it also includes a first mold and a second mold, and the workpiece is clamped between the first mold and the second mold; the rotating mechanism is connected to the first mold, and drives the workpiece to rotate through the first mold.

[0010] The first and second dies serve as both fixtures and molds. Before cutting the edges, the first and second dies squeeze the workpiece to deform to meet the design precision requirements. Once squeezed into place, the workpiece is rotated using a rotating mechanism to trim the edges. Compared to existing technologies, this application combines these two processes, significantly improving production efficiency while avoiding the installation errors caused by multiple processes in existing technologies, thereby enhancing product precision and consistency.

[0011] The first mold and the second mold are arranged opposite to each other up and down, and are respectively an upper mold and a lower mold, or a lower mold and an upper mold.

[0012] Furthermore, it also includes a pressure mechanism, the telescopic end of the pressure mechanism is connected to the second mold, and is used to force the second mold to approach the first mold, thereby clamping the workpiece.

[0013] Furthermore, it also includes a disc seat, one end of which is fixedly connected to the second mold, and the other end of which is relatively rotatably connected to the telescopic end of the pressure mechanism.

[0014] The disc seat can be an independent component or can be made integrally with the second mold.

[0015] Furthermore, the machine tool further includes auxiliary clamping mechanisms, multiple of which are evenly distributed circumferentially. The auxiliary clamping mechanisms include guide rods, coil springs, and bull's-eye bearings (also known as universal ball bearings). The guide rods are movably mounted on the bed, with the bull's-eye bearings located at their tops. The coil springs are mounted on the guide rods, and compression of the coil springs tends to force the balls of the bull's-eye bearings against the back of the second mold or the disc seat. In other words, the auxiliary clamping mechanisms press against the second mold via the bull's-eye bearings.

[0016] Furthermore, an annular guide groove adapted to the ball of the bull's eye bearing is provided on the back of the second mold or the disc seat.

[0017] For the sake of simplicity, in this application, the outer circle of the workpiece rotation center is defined as the circumferential direction; the radial direction of the outer circle is simply referred to as the radial direction.

[0018] Wherein, the pressure-applying mechanism is an air cylinder, an oil cylinder or an electric telescopic mechanism. Optionally, the pressure-applying mechanism and the auxiliary pressing mechanism are arranged on the bed through a bracket.

[0019] Furthermore, it also includes a profiling mechanism for controlling the movement trajectory of the outer tool and the inner tool when they move circumferentially relative to the workpiece;

[0020] The profiling mechanism comprises: a profiling template and a movable workbench;

[0021] The profiling template is rotatably arranged on the bed and rotates synchronously with the workpiece;

[0022] The movable workbench is arranged on the bed in a radially movable manner;

[0023] The inner tool, outer tool and actuator are arranged on the movable workbench;

[0024] The profiling template is provided with an annular limiting structure, and the movable workbench is provided with a follower structure adapted to the annular limiting structure. When the profiling template rotates synchronously with the workpiece, the movable workbench, the inner tool, the outer tool and the actuator are driven to move radially through the annular limiting structure and the follower structure.

[0025] Among them, the combination of the annular limiting structure and the follower structure is similar to a cam drive mechanism. The changing trajectory of the working surface of the annular limiting structure is used to push the movable workbench to move back and forth in a straight line direction through the follower structure. The annular limiting structure has various forms, such as guide rails, guide grooves, etc., and the follower structure is a guide wheel, slider, etc. that is compatible with the guide rails and guide grooves.

[0026] Preferably, the annular limiting structure is an annular groove on the contour template, and the follower structure is a roller provided on the movable workbench; the roller can be inserted into the annular groove by rolling along the annular groove; the annular groove includes an inner working surface on the side close to the workpiece rotation center in the radial direction and an outer working surface on the side away from the workpiece rotation center in the radial direction, and the outer circle of the roller abuts against the inner working surface or the outer working surface.

[0027] Preferably, the annular limiting structure is an annular track on the profiling template; the annular track includes an inner working surface on the radial side close to the workpiece rotation center and an outer working surface on the radial side away from the workpiece rotation center;

[0028] The following structure is an inner roller and an outer roller provided on the movable workbench;

[0029] The outer circles of the inner roller and the outer roller respectively abut against the inner working surface and the outer working surface.

[0030] The inner and outer rollers clamp the annular track from both sides, which has higher precision than other guide limit forms.

[0031] Furthermore, the outer roller includes a first outer roller and a second outer roller, and in the tangential direction of the center line of the annular track, the inner roller is arranged between the first outer roller and the second outer roller.

[0032] Furthermore, in the relative movement direction, the first outer roller is arranged in the front, the second outer roller is arranged in the rear, and the outer diameter of the first outer roller is 1.5-3 times the outer diameter of the second outer roller.

[0033] Furthermore, it also includes a rotating workbench, which is rotatably arranged on the movable workbench, and the inner tool, outer tool and actuator are arranged on the rotating workbench.

[0034] Furthermore, it also includes an inner feed seat and an outer feed seat; the inner feed seat is movably arranged on the rotary workbench in the radial direction; the outer feed seat is movably arranged on the inner feed seat in the radial direction;

[0035] The inner cutter and the outer cutter are respectively arranged at the front ends of the inner feed seat and the outer feed seat;

[0036] The actuator includes an inner actuator and an outer actuator, which are respectively connected to the inner feed seat and the outer feed seat, and are used to respectively force the inner feed seat and the outer feed seat to move radially.

[0037] Furthermore, the inner actuator and the outer actuator are screw transmission mechanisms; the screw transmission mechanism includes: a motor, a screw and a transmission nut;

[0038] The transmission nut is fixedly arranged on the inner feed seat or the outer feed seat;

[0039] One end of the lead screw is connected to the motor power output shaft, and the other end is screwed into the transmission nut.

[0040] Furthermore, the outer cutter is disc-shaped (similar to a milling cutter), and the outer cutter is rotatably arranged on the outer feed seat;

[0041] And / or, the inner cutter is disc-shaped (similar to a milling cutter), and the inner cutter is rotatably arranged on the inner feed seat.

[0042] Specifically, the inner cutter and the outer cutter are rotatably arranged on the inner feed seat and the outer feed seat using a bearing structure.

[0043] Furthermore, a counter (such as a photoelectric counter) is included for detecting and counting the rotation angle or number of revolutions of the workpiece.

[0044] Furthermore, the rotating mechanism includes a motor and an intermediate transmission mechanism;

[0045] The first mold and the profiling template are arranged on the bed through a main shaft. The motor is connected to the main shaft through an intermediate transmission mechanism and drives the first mold, the workpiece and the profiling template to rotate through the main shaft.

[0046] The intermediate transmission mechanism is a prior art, preferably a chain sprocket transmission pair, a gear transmission pair, etc.

[0047] Among them, the counter can be set on one side of the rotating mechanism to indirectly detect the rotation angle or number of turns of the workpiece by detecting the angle and number of turns of the motor. Alternatively, the counter can be set directly facing the second mold or the first mold to directly detect the rotation angle and number of turns of the workpiece.

[0048] The counter is connected to the controller. After installation and debugging, the controller can obtain the workpiece processing progress through the feedback of the counter, and further control the feed degree of the inner tool and the outer tool through the actuator.

[0049] Furthermore, a support platform that rotates synchronously with the first mold is also provided on the bed; support rollers are provided on the inner feed seat and between the inner tool and the rotation center of the workpiece, and the outer circle of the support roller rests on the support platform.

[0050] The support roller provides support for the inner tool, improves the rigidity of the inner tool installation structure, avoids the shaking of the inner tool during operation, and thus improves the processing accuracy.

[0051] Furthermore, the support roller is a bearing. Generally, a bearing comprises an inner ring, an outer ring, balls and a ball cage, wherein the outer circle of the outer ring rests on the support platform.

[0052] Preferably, the support platform is fixedly sleeved on the main shaft, and more preferably, the support platform is arranged below the first mold.

[0053] By adopting the above technical solution, the present invention has the following beneficial effects:

[0054] The invention provides a workpiece edge cutting device with a scientific and reasonable structural design. After the flash waste of the end cover workpiece is removed, the cutting surface is smoother and burr-free, the cutting effect is high, the cutting quality is improved, and the cost is low and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0056] Figure 1 A front view of a workpiece edge cutting device provided by an embodiment of the present invention;

[0057] Figure 2 for Figure 1 AA sectional view of the workpiece edge cutting device shown;

[0058] Figure 3 for Figure 2 A local enlarged view of point D in FIG;

[0059] Figure 4 It is the working principle diagram of the profiling mechanism in the embodiment;

[0060] Figure 5Schematic diagram of the structure of the pressure mechanism in the embodiment;

[0061] Figure 6 for Figure 5 Middle BB cross-section;

[0062] Figure 7 for Figure 5 Middle CC section view;

[0063] Figure 8 It is a structural diagram of the rotating mechanism.

[0064] Reference numerals:

[0065] 1-external tool; 2-internal tool; 3-workpiece; 10-bed; 12-first mold; 13-second mold; 14-disc seat; 15-guide sleeve; 16-support platform; 20-rotating mechanism; 21-motor; 22-intermediate transmission mechanism; 25-counter; 30-actuator; 31-internal actuator; 32-external actuator; 40-pressure mechanism; 41-base; 42-guide column; 43-guide sleeve; 44-guide rod; 45-coil spring; 46-bull's eye bearing; 50-profile template; 51-annular track; 52-inner roller; 53-first outer roller; 54-second outer roller; 60-movable worktable; 61-rotating worktable; 62-inner feed seat; 63-outer feed seat; 64-support roller. DETAILED DESCRIPTION

[0066] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0067] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0069] The present invention will be further explained below with reference to specific embodiments.

[0070] like Figure 1-2 As shown, the present embodiment provides a workpiece edge cutting device, which includes: a bed 10, and a rotating mechanism 20, an outer tool 1, an inner tool 2 and an actuator 30 provided on the bed 10;

[0071] The rotating mechanism 20 is used to drive the workpiece 3 to rotate;

[0072] The inner tool 2 is arranged on the inner side of the edge of the workpiece 3, and the outer tool 1 is arranged on the outer side of the edge of the workpiece 3;

[0073] The actuator 30 is used to force the inner tool 2 and the outer tool 1 to be relatively close to each other so as to perform shearing on the edge of the workpiece 3 .

[0074] More preferably, this embodiment further includes a first mold 12 and a second mold 13 , and the workpiece 3 is clamped between the first mold 12 and the second mold 13 ; the rotating mechanism 20 is connected to the first mold 12 , and drives the workpiece 3 to rotate through the first mold 12 .

[0075] The first and second dies 12, 13 serve as both fixtures and molds. Before cutting the edges, the first and second dies 12, 13 are first used to squeeze the workpiece 3 to meet the design accuracy requirements. After squeezing into place, the workpiece 3 is rotated by the rotating mechanism 20, and the edges of the workpiece 3 are trimmed. Compared to the prior art, the present application combines the two processes, greatly improving production efficiency while avoiding the installation errors caused by multiple processes in the prior art, thereby improving the accuracy and uniformity of the product.

[0076] Among them, the first mold 12 and the second mold 13 are arranged opposite to each other up and down. When the rotating mechanism 20 is arranged above the workpiece 3, the first mold 12 is the upper mold; in this embodiment, the rotating mechanism 20 is arranged below the workpiece 3, the first mold 12 is the lower mold, and the second mold 13 is the upper mold.

[0077] The first mold 12 and the second mold 13 can be fastened by common clamping parts such as bolts and pressure plates to clamp and fix the workpiece 3 to prevent the workpiece 3 from moving during processing.

[0078] More preferably, if Figure 5 and Figure 6 As shown, this embodiment also includes a pressure mechanism 40 and a disc base 14. The pressure mechanism 40 is an air cylinder or an oil cylinder. The telescopic end of the pressure mechanism 40 is connected to the second mold 13 and is used to force the second mold 13 close to the first mold 12, thereby clamping the workpiece 3. Specifically, the telescopic end of the pressure mechanism 40 is connected to the second mold 13 through a guide mechanism. The guide mechanism includes a base 41, a guide sleeve 43 and a guide column 42. The pressure mechanism 40 is fixedly set on the top of the base 41, and the bottom of the base 41 is fixed to the crossbeam of the bracket 11. The guide sleeve 43 is inserted into the mounting hole in the base 41, and the guide column 42 is inserted into the guide sleeve 43. The telescopic end of the pressure mechanism 40 is fixedly connected to the top of the guide column 42. The lower end of the guide column 42 is relatively rotatably connected to the disc base 14 through a bearing structure 47. The lower end of the disc base 14 is fixedly connected to the second mold 13.

[0079] The disc base 14 can be an independent component, or can be made integrally with the second mold 13 .

[0080] On the basis of the above scheme, Figure 5-7 As shown, this embodiment may optionally further include an auxiliary clamping mechanism, and several auxiliary clamping mechanisms are evenly arranged in the circumferential direction. The auxiliary clamping mechanism includes a guide rod 44, a coil spring 45 and a bull's eye bearing 46 (or a universal ball bearing); the guide rod 44 is liftably arranged on the bracket 11 through a guide sleeve 15, and a bull's eye bearing is provided on the top of the guide rod 44. The coil spring 45 is sleeved on the guide rod 44, and the upper end of the coil spring 45 abuts against the crossbeam of the bracket 11, and the lower end abuts against the bull's eye bearing 46 at the lower end of the guide rod 44.

[0081] The compression tends to force the balls of the bull's eye bearing 46 to abut against the back of the second mold 13 or the disc seat 14. That is, the auxiliary pressing mechanism abuts against the second mold 13 via the bull's eye bearing 46. An annular guide groove adapted to the balls of the bull's eye bearing 46 is provided on the back of the second mold 13 or the disc seat 14.

[0082] For the sake of simplicity, in this application, the outer circle of the rotation center of the workpiece 3 is defined as the circumferential direction; the radial direction of the outer circle is simply referred to as the radial direction.

[0083] The pressure mechanism 40 is an air cylinder, an oil cylinder or an electric telescopic mechanism.

[0084] More preferably, this embodiment further includes a profiling mechanism for controlling the movement trajectory of the outer tool 1 and the inner tool 2 when they move circumferentially relative to the workpiece 3; Figure 3-4 As shown, the profiling mechanism includes: a profiling template 50 and a movable workbench 60; the profiling template 50 is rotatably arranged on the bed 10 and rotates synchronously with the workpiece 3; the movable workbench 60 is radially movably arranged on the bed 10 through a guide rail; the inner tool 2, the outer tool 1 and the actuator 30 are arranged on the movable workbench 60.

[0085] The profiling template 50 is provided with an annular limiting structure, and the movable worktable 60 is provided with a follower structure adapted to the annular limiting structure. When the profiling template 50 rotates synchronously with the workpiece 3, the annular limiting structure and the follower structure drive the movable worktable 60, the inner tool 2, the outer tool 1, and the actuator 30 in radial movement. The provision of the profiling template 50 greatly improves the precision and uniformity of workpiece machining.

[0086] Among them, the combination of the annular limiting structure and the follower structure is similar to a cam drive mechanism, and the changing trajectory of the working surface of the annular limiting structure is used to push the movable workbench 60 to move back and forth in a straight line direction through the follower structure. The annular limiting structure has various forms, such as guide rails, guide grooves, etc., and the follower structure is a guide wheel, slider, etc. that is compatible with the guide rails and guide grooves.

[0087] Reference Figure 4 As shown, in this embodiment, the annular limiting structure is preferably an annular track 51 on the profiling template 50; the annular track 51 includes an inner working surface radially closer to the rotation center of the workpiece 3 and an outer working surface radially farther from the rotation center of the workpiece 3. The follower structure is an inner roller 52 and an outer roller provided on the movable worktable 60; the outer circumferences of the inner roller 52 and the outer roller respectively abut against the inner and outer working surfaces of the annular track 51. The inner roller 52 and the outer roller clamp the annular track 51 from both sides, achieving higher precision than other guide limiting structures.

[0088] More preferably, the outer rollers include a first outer roller 53 and a second outer roller 54. The first outer roller 53, the second outer roller 54, and the inner roller 52 are arranged in a triangle, and the inner roller 52 is positioned between the first outer roller 53 and the second outer roller 54 in the tangential direction of the centerline of the annular track 51. Furthermore, in the relative movement direction, the first outer roller 53 is positioned in the front, and the second outer roller 54 is positioned in the rear. More preferably, the outer diameter of the first outer roller 53 is 1.5-3 times the outer diameter of the second outer roller 54.

[0089] The triangular arrangement is conducive to the follower mechanism smoothly passing through the corners and other parts of the annular track 51 with large shape changes, thereby avoiding the problems of getting stuck or having an unsatisfactory limiting effect.

[0090] Based on the above technical solution, refer to Figure 2 As shown, more preferably, this embodiment further includes a rotating worktable 61, which is rotatably mounted on the movable worktable 60. The inner tool 2, outer tool 1, actuator 30, and follower mechanism are mounted on the rotating worktable 61. Specifically, the first outer roller 53 and the second outer roller 54 of the follower mechanism are mounted on the rotating worktable 61. Furthermore, the embodiment further includes an inner feed seat 62 and an outer feed seat 63; the inner feed seat 62 is radially movable mounted on the rotating worktable 61; the outer feed seat 63 is radially movable mounted on the inner feed seat 62; the inner tool 2 and the outer tool 1 are mounted at the front ends of the inner feed seat 62 and the outer feed seat 63, respectively.

[0091] The actuator 30 includes an inner actuator 31 and an outer actuator 32 , which are respectively connected to the inner feed seat 62 and the outer feed seat 63 for forcing the inner feed seat 62 and the outer feed seat 63 to move radially.

[0092] Among them, the inner actuator 31 and the outer actuator 32 are screw transmission mechanisms; the screw transmission mechanism includes: a motor, a screw and a transmission nut; the transmission nut is fixedly set on the inner feed seat 62 or the outer feed seat 63; one end of the screw is connected to the motor power output shaft, and the other end is rotated in the transmission nut.

[0093] The outer cutter 1 is disc-shaped (similar to a milling cutter) and is rotatably mounted on the outer feed seat 63. The inner cutter 2 is disc-shaped (similar to a milling cutter) and is rotatably mounted on the inner feed seat 62. Specifically, the inner cutter 2 and the outer cutter 1 are rotatably mounted on the inner feed seat 62 and the outer feed seat 63 using a bearing structure.

[0094] More preferably, the bed 10 is further provided with a support pedestal 16 that rotates synchronously with the first mold 12. Support rollers 64 are provided on the inner feed seat 62 and between the rotational centers of the inner tool 2 and the workpiece 3. The outer diameter of the support rollers 64 abuts against the support pedestal 16. The support rollers 64 provide support for the inner tool 2, improving the rigidity of the mounting structure of the inner tool 2, preventing vibration of the inner tool 2 during operation, and thereby enhancing machining accuracy. Preferably, the support rollers 64 are bearings. A typical bearing comprises an inner ring, an outer ring, balls, and a ball cage; the outer ring's outer diameter abuts against the support pedestal 16.

[0095] In order to facilitate the control of the processing progress, this embodiment further includes a counter 25 (such as a photoelectric counter) for detecting and counting the rotation angle or number of revolutions of the workpiece 3 .

[0096] Reference Figure 8 As shown, the rotating mechanism 20 includes a motor 21 and an intermediate transmission mechanism 22. The first mold 12, the support 16, and the copy template 50 are mounted on the bed 10 via a main shaft. The motor 21 is connected to the main shaft via the intermediate transmission mechanism 22, and drives the first mold 12, workpiece 3, support 16, and copy template 50 to rotate via the main shaft. The support 16 is fixedly mounted on the main shaft and below the first mold 12.

[0097] The intermediate transmission mechanism 22 is of existing technology, and is preferably a chain sprocket transmission pair, a gear transmission pair, etc.

[0098] Among them, the counter 25 can be set on one side of the rotating mechanism 20, and indirectly detect the rotation angle or number of turns of the workpiece 3 by detecting the angle and number of turns of the motor 21. Alternatively, the counter 25 can be set directly facing the second mold 13 or the first mold 12, and the rotation angle and number of turns of the workpiece 3 can be directly detected.

[0099] The counter 25 is connected to the controller. After installation and debugging are completed, the controller can obtain the processing progress of the workpiece 3 through the feedback of the counter 25, and further control the feed degree of the inner tool 2 and the outer tool 1 through the actuator 30.

[0100] The present invention provides a workpiece edge cutting device with a scientific and reasonable structural design. After the flash waste of the end cover workpiece 3 is removed, the cutting surface is smoother and burr-free, the cutting effect is high, the cutting quality is improved, and the cost is low and the efficiency is high.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A workpiece edge cutting device, characterized in that: It includes: A bed, and a rotating mechanism, an external tool, an internal tool and an actuator provided on the bed; The rotating mechanism is used to drive the workpiece to rotate; The inner tool is arranged on the inner side of the edge of the workpiece, and the outer tool is arranged on the outer side of the edge of the workpiece; The actuator is used to force the inner and outer cutters to be relatively close to each other and to shear the edge of the workpiece; The system further comprises a first mold and a second mold, wherein the workpiece is clamped between the first mold and the second mold; the rotating mechanism is connected to the first mold, and drives the workpiece to rotate through the first mold; It also includes a profiling mechanism for controlling the movement trajectory of the outer tool and the inner tool when they move circumferentially relative to the workpiece; The profiling mechanism comprises: a profiling template and a movable workbench; The movable workbench is arranged on the bed in a radially movable manner; Also includes a rotary table, the rotary table is rotatably disposed on the movable table, the inner tool, the outer tool and the actuator are disposed on the rotary table; It also includes an inner feed seat and an outer feed seat; the inner feed seat is movably arranged on the rotary workbench in the radial direction; the outer feed seat is movably arranged on the inner feed seat in the radial direction; the inner tool and the outer tool are respectively arranged at the front ends of the inner feed seat and the outer feed seat; The actuator includes an inner actuator and an outer actuator, the inner actuator and the outer actuator are respectively connected to the inner feed seat and the outer feed seat, for respectively forcing the inner feed seat and the outer feed seat to move radially; The bed is also provided with a support platform that rotates synchronously with the first mold; support rollers are provided on the inner feed seat and between the inner tool and the rotation center of the workpiece, and the outer circle of the support roller rests on the support platform; the support rollers provide support force for the inner tool.

2. The workpiece edge cutting device according to claim 1, characterized in that: It also includes a pressure mechanism, the telescopic end of which is connected to the second mold and is used to force the second mold to approach the first mold, thereby clamping the workpiece.

3. The workpiece edge cutting device according to claim 2, characterized in that: It also includes a disc seat, one end of which is fixedly connected to the second mold, and the other end of which is relatively rotatably connected to the telescopic end of the pressure mechanism.

4. The workpiece edge cutting device according to claim 3, characterized in that: It also includes an auxiliary clamping mechanism, several of which are evenly arranged in the circumferential direction, and the auxiliary clamping mechanism includes a guide rod, a coil spring and a bull's eye bearing; the guide rod is arranged on the bed in a liftable manner, and a bull's eye bearing is arranged on the top of the guide rod. The coil spring is mounted on the guide rod, and the coil spring is compressed to force the ball of the bull's eye bearing to rest against the back of the second mold or the disc seat.

5. The workpiece edge cutting device according to claim 4, characterized in that: An annular guide groove adapted to the ball of the bull's eye bearing is provided on the back of the second mold or the disc seat.

6. The workpiece edge cutting device according to claim 1, characterized in that: The profiling template is rotatably arranged on the bed and rotates synchronously with the workpiece; The inner tool, outer tool and actuator are arranged on the movable workbench; The profiling template is provided with an annular limiting structure, and the movable workbench is provided with a follower structure adapted to the annular limiting structure. When the profiling template rotates synchronously with the workpiece, the movable workbench, the inner tool, the outer tool and the actuator are driven to move radially through the annular limiting structure and the follower structure.

7. The workpiece edge cutting device according to claim 6, characterized in that: The annular limiting structure is an annular groove on the contour template, and the follower structure is a roller arranged on the movable workbench; the roller can be inserted into the annular groove by rolling along the annular groove; the annular groove includes an inner working surface on the side close to the workpiece rotation center in the radial direction and an outer working surface on the side away from the workpiece rotation center in the radial direction, and the outer circle of the roller abuts against the inner working surface or the outer working surface.

8. The workpiece edge cutting device according to claim 6, characterized in that: The annular limiting structure is an annular track on the profiling template; the annular track includes an inner working surface on the side close to the rotation center of the workpiece in the radial direction and an outer working surface on the side away from the rotation center of the workpiece in the radial direction; The following structure is an inner roller and an outer roller provided on the movable workbench; The outer circles of the inner roller and the outer roller respectively abut against the inner working surface and the outer working surface.

9. The workpiece edge cutting device according to claim 8, characterized in that: The outer rollers include a first outer roller and a second outer roller. In the tangential direction of the center line of the annular track, the inner roller is arranged between the first outer roller and the second outer roller.

10. The workpiece edge cutting device according to claim 9, characterized in that: In the relative movement direction, the first outer roller is arranged in the front, and the second outer roller is arranged in the rear. The outer diameter of the first outer roller is 1.5-3 times the outer diameter of the second outer roller.

11. The workpiece edge cutting device according to claim 1, characterized in that: The inner and outer actuators are screw transmission mechanisms; the screw transmission mechanism includes: a motor, a screw and a transmission nut; The transmission nut is fixedly arranged on the inner feed seat or the outer feed seat; One end of the lead screw is connected to the motor power output shaft, and the other end is screwed into the transmission nut.

12. The workpiece edge cutting device according to claim 1, wherein: The outer cutter is disc-shaped and is rotatably arranged on the outer feed seat; And / or, the inner cutter is disc-shaped and is rotatably disposed on the inner feed seat.

13. The workpiece edge cutting device according to claim 1, wherein: A counter is also included for detecting and counting the rotation angle or number of turns of the workpiece.

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