A sawing and shearing composite tool and sawing and shearing process

Abstract

The present invention relates to the field of mechanical design and material processing, and discloses a saw-shear compound tool and a saw-shear process, including: an upper mounting platform for providing a position for placing the tool; an adjustment mechanism, which is arranged in the middle of the adjustment mechanism, and is used to drive the upper mounting platform to move vertically, so as to adjust the height of the tool, thereby adjusting the depth of sawing and shearing; a saw-shear mechanism, which is arranged at the bottom of the upper mounting platform, and is used to move vertically following the upper mounting platform, and the saw-shear mechanism includes a driving mechanism and a saw-shear compound tool. The present invention uses a saw-shear compound tool with a non-standard arc, which not only reduces the plastic deformation and collapse of the material, reduces the need for secondary processing, but also optimizes the production process. At the same time, through a support mechanism and a clamping mechanism, the durability and operating accuracy of the machine are enhanced, and the operating process is simplified, thereby improving safety and production efficiency.

Description

Technical Field

[0001] The invention relates to the fields of mechanical design and material processing, and in particular to a sawing and shearing composite tool and a sawing and shearing process. Background Art

[0002] In the field of metal processing, especially in the application of steel rolling machinery, metal sawing machines and shearing machines play a vital role. These equipment play a core role in the production process, such as back sizing, head cutting, tail cutting, edge cutting, sample cutting and removing local defects of rolled products.

[0003] Shears are widely used for their high-efficiency processing capabilities. They can quickly complete cutting tasks and are particularly suitable for production lines that require a large amount of repeated cutting. However, during operation, shears exert a large extrusion force on the material, which can cause strong plastic deformation of the material at the fracture, resulting in an obvious collapse angle. This collapse angle usually needs to be corrected through subsequent processing steps, such as grinding or re-cutting, which not only increases production costs, but also makes the entire production process more complicated and time-consuming.

[0004] On the other hand, although the sawing machine can provide high-quality cutting effects, ensure a smooth and neat cross-section, and is suitable for precision processing needs, its main disadvantage is its low efficiency. The speed of the sawing machine is far lower than that of the shearing machine. Especially in the face of large-scale production needs, this low efficiency may become a production bottleneck. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a sawing and shearing composite tool and a sawing and shearing process. The present invention uses a sawing and shearing composite tool with a non-standard arc, which not only reduces the plastic deformation and angle collapse of the material and reduces the demand for secondary processing, but also optimizes the production process, effectively improving the overall performance and economic efficiency of the production line.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a saw-shear compound tool, comprising:

[0007] The upper mounting platform is used to provide a location for placing the tool;

[0008] The adjusting mechanism is arranged in the middle of the upper mounting platform and is used to drive the upper mounting platform to move vertically, so as to adjust the height of the cutter and thus adjust the depth of sawing and shearing:

[0009] A sawing and shearing mechanism, which is arranged at the bottom of the upper mounting platform and is used to move vertically following the upper mounting platform, the sawing and shearing mechanism includes a driving mechanism and a saw-shearing compound tool, the saw-shearing compound tool is arranged at the output position of the driving mechanism, the driving mechanism is used to control the rotation of the saw-shearing compound tool, the outer side of the saw-shearing compound tool is provided with a shearing blade and saw teeth, and the outer contour curves of the shearing blade and the saw teeth are non-standard arcs, and at the same time, the downward pressure is ensured to be consistent during operation, so that the driving mechanism can drive the saw-shearing compound tool to complete the material cutting work by only performing a rotational movement;

[0010] The clamping mechanism is arranged in the middle of the upper mounting platform and is used to clamp and position the workpiece to be cut. The clamping mechanism includes a plurality of ratchet strings and a displacement mechanism, which are used to clamp workpieces with different contours and facilitate re-clamping of subsequent workpieces after cutting is completed.

[0011] Preferably, it also includes a supporting mechanism, which is arranged on the outside of the upper mounting platform, and is used to provide stable support for the whole, and at the same time provide installation space for subsequent mechanisms, the supporting mechanism includes a rack top plate and a rack bottom plate, the upper mounting platform is arranged between the rack top plate and the rack bottom plate, a plurality of evenly distributed columns are fixedly installed between the rack top plate and the rack bottom plate, a through hole is penetrated in the middle of the rack top plate, and a limiting groove is arranged on the inner side of the through hole.

[0012] Preferably, the adjusting mechanism includes a connecting plate, which is mounted on the upper side of the frame top plate, a bevel gear reducer is fixedly connected to the upper side of the connecting plate, a lead screw is fixedly connected to the output end of the bevel gear reducer, the outer peripheral thread of the lead screw is connected to a push-down nut, a sleeve is fixedly mounted on the bottom of the push-down nut, a stopper is fixedly connected to the outer side of the sleeve, the stopper is slidably connected to the middle part of the limit groove, a support base is fixedly mounted on the bottom of the sleeve, a mounting support is fixedly mounted on the bottom of the support base, and the upper mounting platform is fixedly mounted on the bottom of the mounting support.

[0013] Preferably, the driving mechanism includes a tool mounting plate, which is fixedly mounted on the bottom of the upper mounting platform by screws, a bearing seat is fixedly connected to the outer side of the tool mounting plate, an input shaft is mounted on the middle part of the bearing seat through a bearing, a chuck flange is fixedly connected to the outer periphery of the input shaft, a turntable is fixedly mounted on the chuck flange, a saw-shear compound tool is fixedly mounted on the outer side of the turntable by screws, a motor is fixedly mounted on the bottom of the upper mounting platform, a flange coupling is fixedly connected to the output end of the motor, and an end of the input shaft close to the motor is fixedly connected to an end of the flange coupling away from the motor.

[0014] Preferably, the displacement mechanism comprises a mounting base, the mounting base is fixedly mounted on the upper side of the frame bottom plate, the upper side of the mounting base is fixedly connected to two groups of support seats, the upper side of the support seat is fixedly mounted with a T-shaped slide rail, the outer side of the T-shaped slide rail is slidably connected to two support frames, and the sides of the two support frames close to each other are slidably connected with a T-shaped clamping slider. An automatic compensation buffer is provided between each group of the T-clamping sliders and each of the support frames. A plurality of linear electric cylinders are fixedly mounted on the upper side of the mounting base, the pawl string is fixedly connected to the top of the linear electric cylinder, and two groups of lifting cylinders are fixedly connected to the upper side of the mounting base, and the output end of the lifting cylinder is rotatably connected to two connecting rods 1, and the other side of the connecting rod 1 is rotatably connected to the connecting rod 2, and the middle part of the connecting rod 2 is rotatably connected to a convex rod 2, one end of the convex rod 2 protrudes and is rotatably connected to the outer side of the support seat, and the outer side of the support frame is rotatably connected to a convex rod 1, and the convex rod 1 is located in the middle of the connecting rod 2.

[0015] Preferably, the pawl string includes a plurality of pawl shafts, the pawl shafts are fixedly connected to the output end of the linear electric cylinder, a pawl shaft retaining frame is slidably connected to the middle of the support frame, the pawl shaft is slidably connected to the middle of the pawl shaft retaining frame, a plurality of pawls are rotatably connected to the outer periphery of the pawl shaft, a plurality of limiting rings are fixedly connected to the outer side of the pawl shaft, and a rebound torsion spring is fixedly connected between the pawl and the limiting ring.

[0016] Preferably, a T-shaped slot is provided at the bottom of the support frame, and the T-shaped slide rail is slidably connected to the middle of the T-shaped slot.

[0017] Preferably, a plurality of partition sleeves are fixedly connected to the outer periphery of the pawl shaft to provide protection for the rebound torsion spring and reduce its contact with the outside world.

[0018] Preferably, a notch is provided in the middle of the sleeve and the support base, and the lead screw is located in the middle of the notch.

[0019] The present invention also provides a sawing and shearing process of a sawing and shearing composite tool, comprising the following steps:

[0020] Step 1: Put the workpiece to be cut between the support frames, and drive the lifting cylinder to contract so that the support frames on both sides are close to the center of the support seat. Since the support frame is equipped with a T-clamping slider, the T-clamping slider also moves toward the center. During the movement, the ratchet string is driven by the linear electric cylinder to move upward, so the automatic compensation buffer is not restricted, and the T-clamping slider moves simultaneously with the support frame, and when it contacts the workpiece, it is allowed to be retracted into the support frame through the automatic compensation buffer. While being retracted, the compression state of the automatic compensation buffer will continue to be strengthened, thereby enhancing the elastic force of the automatic compensation buffer. At the same time, the reverse elastic force of the automatic compensation buffer can squeeze the T-clamping slider, thereby improving the clamping stability. At this time, the linear electric cylinder is driven to reset the ratchet string, so that the T-clamping slider can only extend outward but cannot be retracted inward, further improving the clamping stability of the device;

[0021] Step 2: After the workpiece is clamped, the lifting cylinder is driven to rise. At this time, the connecting rod 1 and the lifting cylinder drive the support frame back to the initial position. Since the linear electric cylinder is stationary and cannot rotate circumferentially, the ratchet string is stationary and always engages with the ratchet on the T-type clamping slider to prevent the clamped workpiece from being loosened. At this time, the automatic compensation buffer at the end of the T-type clamping slider is pulled;

[0022] Step 3: Open the bevel gear reducer to drive the lead screw to rotate, so that the pressing nut matched with it moves up and down along the axis of the lead screw, so that the upper mounting platform and the sawing and shearing mechanism installed on the sawing and shearing device are adjusted until the initial saw teeth of the saw-shearing compound tool begin to contact the bar material. At this time, the saw-shearing compound tool is driven to rotate around the axis of the input shaft through the driving motor, flange coupling, input shaft, chuck flange and turntable, so as to realize the sawing-shearing compound motion. After the cutting is completed, the saw-shearing compound tool returns to the initial position, and the saw-shearing compound tool stops rotating;

[0023] Step 4: Since the lower end of the pawl shaft is connected to the linear electric cylinder, the linear electric cylinder extends the output shaft and pushes the pawl string to the side of the T-clamping slider surface without ratchet teeth, causing the pawl string and the ratchet teeth on the T-clamping slider to no longer engage. At this time, the automatic compensation buffer can pull the T-clamping slider back to the initial position. At this time, the pawl string and the ratchet teeth on the T-clamping slider are engaged, and the entire clamping mechanism returns to the initial state, and the material picking and placing operations can be carried out.

[0024] The present invention provides a sawing and shearing composite tool and a sawing and shearing process. It has the following beneficial effects:

[0025] 1. The saw-shear composite tool of the present invention realizes "sawing" and then "shearing" of the material by combining a high-precision adjustment mechanism and a tool design with a non-standard arc outer contour line, and realizes uniform distribution of pressure on the material during the cutting process. This not only effectively reduces the collapse angle effect produced during the shearing process, but also significantly improves the smoothness of the cutting surface and the overall processing quality, thereby improving the fracture quality, thereby improving the processing efficiency and product quality.

[0026] 2. The present invention ensures the stability of the overall structure under high-load working conditions through the supporting mechanism. This stability not only helps to withstand the vibration and impact during the cutting process, but also ensures the long-term durability of the machine and the repetitive accuracy of the cutting operation.

[0027] 3. The present invention can quickly and accurately adjust the clamping mechanism to adapt to workpieces of different shapes and sizes through the clamping mechanism. The automated adjustment and clamping process not only reduces the complexity of operation, but also shortens the workpiece replacement time, thereby improving production efficiency and workplace safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective view of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the support mechanism of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the limiting groove of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the motor of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the automatic compensation buffer of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the ratchet string of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the pawl shaft of the present invention;

[0037] Fig.10 It is a schematic structural diagram of the rebound torsion spring of the present invention;

[0038] Fig.11 It is a schematic diagram of the structure of the saw-shear-combined tool of the present invention;

[0039] Fig.12 A schematic diagram of the contour curve of the shearing edge and the serrations of the present invention;

[0040] Fig.13 It is a structural schematic diagram of the sawing and shearing mechanism of the present invention.

[0041] Among them, 1. upper mounting platform; 20. sawing and shearing mechanism; 201. tool mounting plate; 202. bearing seat; 203. input shaft; 204. chuck flange; 205. turntable; 206. flange coupling; 207. motor; 208. saw-shearing compound tool; 40. clamping mechanism; 401. mounting base; 402. support seat; 403. support frame; 404. ratchet string; 405. linear electric cylinder; 406. automatic compensation buffer; 407. ratchet shaft retaining frame; 408. lifting cylinder; 409. connecting rod 1; 410. T-type clamping slider; 411. partition Sleeve; 412, pawl; 413, pawl shaft; 414, T-type slide rail; 415, T-slot; 417, protruding rod one; 418, connecting rod two; 419, protruding rod two; 422, limiting ring; 423, rebound torsion spring; 50, supporting mechanism; 501, frame top plate; 502, column; 503, frame bottom plate; 504, through hole; 505, limiting slot; 60, adjusting mechanism; 601, bevel gear reducer; 602, connecting plate; 603, lead screw; 604, sleeve; 605, supporting base; 606, pressing nut; 607, mounting support; 608, stopper. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0043] Please refer to the attached Figure 1 -Attached Fig.13 The embodiment of the present invention provides a saw-shear compound tool, comprising:

[0044] The upper mounting platform 1 is used to provide a position for placing the tool. The upper mounting platform 1 can support the weight of the entire saw-shear compound tool and the dynamic load generated during its operation to ensure the accuracy and repeatability of the entire cutting process;

[0045] The adjusting mechanism 60 is arranged in the middle of the upper mounting platform 1 and is used to drive the upper mounting platform 1 to move vertically, so as to adjust the height of the tool, thereby adjusting the sawing depth. The adjusting mechanism 60 makes the adjustment of the tool height both accurate and convenient, and provides more flexibility to process materials of different thicknesses, thereby expanding the use range of the machine and improving its applicability:

[0046] The sawing and shearing mechanism 20 is arranged at the bottom of the upper mounting platform 1 and is used to move vertically with the upper mounting platform 1. The sawing and shearing mechanism 20 includes a driving mechanism and a saw-shearing compound tool 208. The saw-shearing compound tool 208 is arranged at the output position of the driving mechanism. The driving mechanism is used to control the rotation of the saw-shearing compound tool 208. The outer side of the saw-shearing compound tool 208 is provided with a shearing blade and saw teeth, and the contour curves of the shearing blade and the saw teeth are non-standard arcs. At the same time, the downward pressure is ensured to be consistent during operation, so that the driving mechanism only needs to perform a rotational movement to drive the saw-shearing compound tool 208 to complete the material cutting work. The design of the non-standard arc can provide uniform pressure at different cutting angles, thereby reducing the tearing and stretching of the material, and improving the overall cutting quality and surface finish. The saw-shearing compound tool 208 is divided, wherein the thick single-point dashed line part is the sawtooth part of the new tool, and the thick solid line part is the shearing blade part of the new tool. Taking the shearing part as an example, when the thick solid line meets the rotation unit angle dβ, the curve radius increases by a fixed length dL. According to the above analysis, it can be known that:

[0047]

[0048] Where: - Maximum sawing depth; - Maximum shear depth;

[0049] Simplification can be any The expression for the radius of curvature corresponding to the angle is:

[0050]

[0051] The curve equation corresponding to the shearing part can be obtained as:

[0052]

[0053] In the formula For saw-shear dividers and Axis Angle

[0054] Similarly, the curve expression corresponding to the sawing part can be obtained as follows:

[0055]

[0056] The clamping mechanism 40 is arranged in the middle of the upper mounting platform 1 and is used to clamp and position the workpiece to be cut. The clamping mechanism 40 includes a plurality of ratchet strings 404 and a displacement mechanism, which are used to clamp workpieces with different contours and facilitate re-clamping of subsequent workpieces after cutting is completed. Through rapid adjustment and stable clamping, the mechanism not only improves the cutting efficiency, but also ensures the accuracy and repeatability during the cutting process, thereby improving productivity and safety.

[0057] Please refer to the attached Figure 1 and attached Figure 2 In a preferred embodiment of the present invention, it also includes a supporting mechanism 50, which is arranged on the outer side of the upper mounting platform 1, and is used to provide stable support for the whole, and at the same time provide installation space for subsequent mechanisms. The supporting mechanism 50 includes a frame top plate 501 and a frame bottom plate 503. The upper mounting platform 1 is arranged between the frame top plate 501 and the frame bottom plate 503. A plurality of evenly distributed columns 502 are fixedly installed between the frame top plate 501 and the frame bottom plate 503. A through hole 504 is penetrated through the middle of the frame top plate 501, and a limiting groove 505 is arranged on the inner side of the through hole 504. The frame top plate 501 and the frame bottom plate 503 are connected through a plurality of columns 502 to form a solid frame, which not only ensures the stability of the overall structure, but also helps to withstand various forces and vibrations generated during the sawing process. The through hole 504 and the limiting groove 505 are used to limit or install subsequent mechanisms.

[0058] Please refer to the attached Figure 1 -Attached Figure 4 In a preferred embodiment of the present invention, the adjustment mechanism 60 includes a connecting plate 602, which is mounted on the upper side of the frame top plate 501. A bevel gear reducer 601 is fixedly connected to the upper side of the connecting plate 602. A lead screw 603 is fixedly connected to the output end of the bevel gear reducer 601. The bevel gear reducer 601 is used to increase the output torque, ensure that the lead screw 603 rotates smoothly and has sufficient power to drive the entire mechanism. The outer periphery of the lead screw 603 is threadedly connected to a press-down nut 606, and a sleeve is fixedly installed at the bottom of the press-down nut 606. Cylinder 604, the outer side of sleeve 604 is fixedly connected with a stopper 608, the stopper 608 is slidably connected to the middle of the limiting groove 505, the bottom of sleeve 604 is fixedly installed with a support base 605, the bottom of the support base 605 is fixedly installed with a mounting support 607, and the upper mounting platform 1 is fixedly installed at the bottom of the mounting support 607. When driving the bevel gear reducer 601, the stopper 608 is limited to enable the pressing nut 606 and the sleeve 604 to move at the same time, so that the height of the upper mounting platform 1 and the tool at the bottom can be adjusted.

[0059] Please refer to the attached Figure 1 , Attachment Figure 5 and attached Fig.11In a preferred embodiment of the present invention, the driving mechanism includes a tool mounting plate 201, which is fixedly mounted on the bottom of the upper mounting platform 1 by screws, and a bearing seat 202 is fixedly connected to the outer side of the tool mounting plate 201, and an input shaft 203 is installed in the middle of the bearing seat 202 through a bearing, and the bearing seat 202 and the bearing are used to ensure the stable rotation and good load bearing capacity of the input shaft 203, and a chuck flange 204 is fixedly connected to the outer periphery of the input shaft 203, and a turntable 205 is fixedly mounted on the chuck flange 204, and the outer side of the turntable 205 is fixedly mounted by screws. It is equipped with a saw-shear compound tool 208, and the chuck flange 204 and the turntable 205 provide a stable power output platform for the saw-shear compound tool 208, thereby improving its cutting accuracy and efficiency. A motor 207 is fixedly installed on the bottom of the upper mounting platform 1, and the output end of the motor 207 is fixedly connected to the flange coupling 206, and the end of the input shaft 203 close to the motor 207 is fixedly connected to the end of the flange coupling 206 away from the motor 207. The motor 207 is used to drive the flange coupling 206 and the input shaft 203 to rotate, thereby driving the saw-shear compound tool 208 to cut the material.

[0060] Please refer to the attached Figure 6 and attached Figure 7In a preferred embodiment of the present invention, the displacement mechanism includes a mounting base 401, the mounting base 401 is fixedly mounted on the upper side of the rack bottom plate 503, the upper side of the mounting base 401 is fixedly connected with two sets of support seats 402, the upper side of the support seats 402 is fixedly mounted with a T-shaped slide rail 414, the outer side of the T-shaped slide rail 414 is slidably connected with two support frames 403, the T-shaped slide rail 414 provides a smooth and precise sliding path, so that the support frames 403 can move along it, and the two support frames 403 are slidably connected on one side close to each other. There are T-shaped clamping sliders 410, and an automatic compensation buffer 406 is arranged between each group of T-shaped clamping sliders 410 and each support frame 403. The T-shaped clamping slider 410 ensures stability after clamping through the automatic compensation buffer 406. The automatic compensation buffer 406 can absorb vibration and impact during movement to ensure stability and accuracy of clamping. A plurality of linear electric cylinders 405 are fixedly installed on the upper side of the mounting base 401, and the ratchet string 404 is fixedly connected to the top of the linear electric cylinder 405. The upper side of the mounting base 401 is fixedly connected to the upper side of the mounting base 401. Two groups of lifting cylinders 408 are connected, and the output end of the lifting cylinder 408 is rotatably connected to two connecting rods 1 409, and the other side of the connecting rod 1 409 is rotatably connected to the connecting rod 2 418, and the middle part of the connecting rod 2 418 is rotatably connected to the convex rod 2 419, and one end of the convex rod 2 419 protrudes and is rotatably connected to the outer side of the support seat 402. The convex rod 2 419 is used to limit the connecting rod 2 418, so that the connecting rod 2 418 rotates around the convex rod 2 419 as the center. At this time, when the lifting cylinder 408 drives and drives one side of the connecting rod 1 409 to move downward, the connecting rod 418 can be moved downward. The bottom of the second connecting rod 418 is squeezed, and at this time, the second connecting rod 418 is limited by the second convex rod 419 to make the supporting frame 403 move parallel to each other, so as to perform the clamping operation. The outer side of the supporting frame 403 is rotatably connected with the convex rod 1 417, and the convex rod 1 417 is located in the middle of the second connecting rod 418. The lifting cylinder 408 is used to control one side of the connecting rod 1 409 to move up and down, so that the connecting rod 1 409 pushes or pulls the lower side of the connecting rod 2 418, so that the second connecting rod 418 drives the convex rod 1 417 and the supporting frame 403 to move, so as to complete the subsequent clamping operation.

[0061] Please refer to the attached Figure 8 -Attached Fig.10In a preferred embodiment of the present invention, the pawl string 404 includes a plurality of pawl shafts 413, the pawl shafts 413 are fixedly connected to the output end of the linear electric cylinder 405, the middle part of the support frame 403 is slidably connected to a pawl shaft holder 407, the pawl shaft 413 is slidably connected to the middle part of the pawl shaft holder 407, the pawl shaft holder 407 provides a guide for the pawl shaft 413, and prevents the pawl shaft 413 from tilting, and maintains the use position of the pawl shaft 413, the outer periphery of the pawl shaft 413 is rotatably connected to a plurality of pawls 412, and the pawl shaft 41 3 is fixedly connected to the outer side with a plurality of limit rings 422, and a rebound torsion spring 423 is fixedly connected between the pawl 412 and the limit ring 422. The limit ring 422 and the pawl 412 are connected by the rebound torsion spring 423, which allows the pawl 412 to produce an appropriate elastic response when contacting the T-clamping slider 410, thereby improving the flexibility and adaptability of clamping, and can compress the automatic compensation buffer 406 when the T-clamping slider 410 moves, so that the T-clamping slider 410 is always in contact with the workpiece after clamping, thereby improving the clamping effect.

[0062] Please refer to the attached Figure 7 In a preferred embodiment of the present invention, a T-slot 415 is provided at the bottom of the support frame 403, and a T-slot rail 414 is slidably connected to the middle of the T-slot 415. The T-slot rail 414 is limited by the T-slot 415, so that the support frame 403 can only move in parallel, avoiding the problem of tilting or collapse during movement.

[0063] Please refer to the attached Figure 8 In a preferred embodiment of the present invention, a plurality of partition sleeves 411 are fixedly connected to the outer periphery of the pawl shaft 413 to provide protection for the rebound torsion spring 423 and reduce its contact with the outside world. The partition sleeve 411 is used to protect the rebound torsion spring 423 from direct impact or wear, thereby extending its service life and reducing the frequency of maintenance and replacement.

[0064] Please refer to the attached Figure 3 and attached Figure 4 In a preferred embodiment of the present invention, a notch is provided in the middle of the sleeve 604 and the support base 605, and the lead screw 603 is located in the middle of the notch. The lead screw 603 is accommodated by the notch to ensure its correct alignment and stable operation during the vertical movement, so that the press-down nut 606 moves vertically, while providing space for the sleeve 604 to move.

[0065] The present invention also provides a sawing and shearing process of a sawing and shearing composite tool, comprising the following steps:

[0066] Step 1: Put the workpiece to be cut between the support frames 403, and drive the lifting cylinder 408 to shrink so that the support frames 403 on both sides are close to the center of the support seat 402. Since the support frame 403 is equipped with a T-clamping slider 410, the T-clamping slider 410 also moves toward the center. When moving, the ratchet string 404 is driven by the linear electric cylinder 405 to move upward, so the automatic compensation buffer 406 is not restricted, and the T-clamping slider 410 moves simultaneously with the support frame 403, and when it contacts the workpiece, it moves automatically. The automatic compensation buffer 406 allows itself to be retracted into the support frame 403. While being retracted, the compression state of the automatic compensation buffer 406 will continue to be strengthened, thereby enhancing the elastic force of the automatic compensation buffer 406. At the same time, the reverse elastic force of the automatic compensation buffer 406 can squeeze the T-shaped clamping slider 410, thereby improving the clamping stability. At this time, the linear electric cylinder 405 is driven to reset the pawl string 404, so that the T-shaped clamping slider 410 can only extend outwards but cannot be retracted inwards, further improving the clamping stability of the device;

[0067] Step 2: After the workpiece is clamped, the lifting cylinder 408 is driven to rise. At this time, the connecting rod 409 and the lifting cylinder 408 drive the support frame 403 to return to the initial position. Since the linear electric cylinder 405 is stationary and cannot rotate circumferentially, the ratchet string 404 is stationary and always engages with the ratchet on the T-type clamping slider 410 to prevent the clamped workpiece from being loosened. At this time, the automatic compensation buffer 406 at the end of the T-type clamping slider 410 is pulled;

[0068] Step 3: Open the bevel gear reducer 601 to drive the lead screw 603 to rotate, so that the pressing nut 606 matched with it moves up and down along the axis of the lead screw 603, so that the upper mounting platform 1 and the sawing and shearing mechanism 20 installed on the sawing and shearing device are adjusted until the initial teeth of the saw-shearing compound tool 208 begin to contact the bar material. At this time, the saw-shearing compound tool 208 is driven to rotate around the axis of the input shaft 203 by the driving motor 207, the flange coupling 206, the input shaft 203, the chuck flange 204 and the turntable 205, so as to realize the sawing-shearing compound motion. After the cutting is completed, the saw-shearing compound tool returns to the initial position, and the saw-shearing compound tool 208 stops rotating;

[0069] Step 4: Since the lower end of the pawl shaft 413 is connected to the linear electric cylinder 405, the linear electric cylinder 405 extends the output shaft and pushes the pawl string 404 to the side of the T-clamping slider 410 without a ratchet, so that the pawl string 404 and the ratchet on the T-clamping slider 410 are no longer engaged. At this time, the automatic compensation buffer 406 can pull the T-clamping slider 410 back to the initial position. At this time, the pawl string 404 and the ratchet on the T-clamping slider 410 are engaged, and the entire clamping mechanism returns to the initial state, and the material picking and discharging operations can be carried out.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A saw-shear compound tool, characterized in that: include: An upper mounting platform (1) is used to provide a location for placing a tool; An adjustment mechanism (60) is arranged in the middle of the upper mounting platform (1) and is used to drive the upper mounting platform (1) to move vertically, thereby adjusting the height of the tool and thus adjusting the depth of sawing: A sawing and shearing mechanism (20) is arranged at the bottom of the upper mounting platform (1) and is used to move vertically following the upper mounting platform (1). The sawing and shearing mechanism (20) comprises a driving mechanism and a saw-shearing compound tool (208). The saw-shearing compound tool (208) is arranged at the output position of the driving mechanism. The driving mechanism is used to control the rotation of the saw-shearing compound tool (208). A shearing blade and saw teeth are arranged on the outer side of the saw-shearing compound tool (208), and the contour curves of the shearing blade and the saw teeth are non-standard arcs. At the same time, the downward pressure is ensured to be consistent during operation, so that the driving mechanism only needs to perform rotational movement to drive the saw-shearing compound tool (208) to complete the material cutting work; A support mechanism (50) is arranged on the outside of the upper mounting platform (1) and is used to provide stable support for the whole and provide installation space at the same time, the support mechanism (50) comprises a frame top plate (501) and a frame bottom plate (503), the upper mounting platform (1) is arranged between the frame top plate (501) and the frame bottom plate (503), a plurality of evenly distributed uprights (502) are fixedly installed between the frame top plate (501) and the frame bottom plate (503), a through hole (504) is provided in the middle of the frame top plate (501), and a limiting groove (505) is provided on the inner side of the through hole (504); A clamping mechanism (40) is arranged in the middle of the upper mounting platform (1) and is used to clamp and position a workpiece to be cut. The clamping mechanism (40) comprises a plurality of ratchet strings (404) and a displacement mechanism, which are used to clamp workpieces of different shapes and contours and facilitate re-clamping of subsequent workpieces after cutting is completed. The displacement mechanism comprises a mounting base (401), the mounting base (401) is fixedly mounted on the upper side of the frame bottom plate (503), the upper side of the mounting base (401) is fixedly connected to two groups of support bases (402), and the upper side of the support base (402) is fixedly mounted on the upper side of the frame bottom plate (503). A T-shaped slide rail (414) is installed, and two support frames (403) are slidably connected to the outer side of the T-shaped slide rail (414), and a T-shaped clamping slider (410) is slidably connected to the side of the two support frames (403) close to each other, and an automatic compensation buffer (406) is provided between each group of the T-shaped clamping sliders (410) and each support frame (403), and a plurality of linear electric cylinders (405) are fixedly installed on the upper side of the mounting base (401), and the ratchet string (404) is fixedly connected to the top of the linear electric cylinder (405). Two sets of lifting cylinders (408) are fixedly connected on the upper side, and the output end of the lifting cylinder (408) is rotatably connected to two connecting rods (409), and the other side of the connecting rod (409) is rotatably connected to the connecting rod (418), and the middle part of the connecting rod (418) is rotatably connected to the protruding rod (419), and one end of the protruding rod (419) protrudes and is rotatably connected to the outside of the support seat (402), and the outer side of the support frame (403) is rotatably connected to the protruding rod (417), and the protruding rod (417) is located in the middle of the connecting rod (418). ) comprises a plurality of ratchet shafts (413), the ratchet shafts (413) being fixedly connected to the output end of the linear electric cylinder (405), a ratchet shaft holder (407) being slidably connected to the middle of the support frame (403), the ratchet shaft (413) being slidably connected to the middle of the ratchet shaft holder (407), a plurality of ratchet shafts (412) being rotatably connected to the outer periphery of the ratchet shaft (413), a plurality of limiting rings (422) being fixedly connected to the outer side of the ratchet shaft (413), and a rebound torsion spring (423) being fixedly connected between the ratchet (412) and the limiting ring (422).

2. A saw-shear compound tool according to claim 1, characterized in that: The adjustment mechanism (60) comprises a connecting plate (602), wherein the connecting plate (602) is mounted on the upper side of the frame top plate (501), a bevel gear reducer (601) is fixedly connected to the upper side of the connecting plate (602), a lead screw (603) is fixedly connected to the output end of the bevel gear reducer (601), a push-down nut (606) is threadedly connected to the outer periphery of the lead screw (603), a sleeve (604) is fixedly mounted on the bottom of the push-down nut (606), a stopper (608) is fixedly connected to the outer side of the sleeve (604), the stopper (608) is slidably connected to the middle of the limiting groove (505), a support base (605) is fixedly mounted on the bottom of the sleeve (604), a mounting support (607) is fixedly mounted on the bottom of the support base (605), and the upper mounting platform (1) is fixedly mounted on the bottom of the mounting support (607).

3. A saw-shear compound tool according to claim 2, characterized in that: The driving mechanism comprises a tool mounting plate (201), wherein the tool mounting plate (201) is fixedly mounted on the bottom of the upper mounting platform (1) by means of screws, a bearing seat (202) is fixedly connected to the outer side of the tool mounting plate (201), an input shaft (203) is mounted in the middle of the bearing seat (202) via a bearing, a chuck flange (204) is fixedly connected to the outer periphery of the input shaft (203), a turntable (205) is fixedly mounted on the chuck flange (204), a saw-shear composite tool (208) is fixedly mounted on the outer side of the turntable (205) by means of screws, a motor (207) is fixedly mounted on the bottom of the upper mounting platform (1), an output end of the motor (207) is fixedly connected to a flange coupling (206), and an end of the input shaft (203) close to the motor (207) is fixedly connected to an end of the flange coupling (206) away from the motor (207).

4. A saw-shear compound tool according to claim 3, characterized in that: A T-shaped slot (415) is provided at the bottom of the support frame (403), and the T-shaped slide rail (414) is slidably connected to the middle of the T-shaped slot (415).

5. A saw-shear compound tool according to claim 4, characterized in that: A plurality of partition sleeves (411) are fixedly connected to the outer periphery of the ratchet shaft (413), and are used to provide protection for the rebound torsion spring (423) and reduce its contact with the outside world.

6. A saw-shear compound tool according to claim 5, characterized in that: A notch is provided in the middle of the sleeve (604) and the support base (605), and the lead screw (603) is located in the middle of the notch.

7. A sawing and shearing process of a sawing and shearing composite tool, characterized in that: Using the saw-shear composite tool according to claim 6 comprises the following steps: Step 1: Place the workpiece to be cut between the support frames (403), and drive the lifting cylinder (408) to retract, so that the support frames (403) on both sides are moved closer to the center of the support seat (402). Since the support frame (403) is equipped with a T-shaped clamping slider (410), the T-shaped clamping slider (410) also moves toward the center. When moving, the ratchet string (404) is driven by the linear electric cylinder (405) to move upward, so the automatic compensation buffer (406) is not restricted, and the T-shaped clamping slider (410) moves simultaneously with the support frame (403) and contacts the workpiece. The automatic compensating buffer (406) is allowed to be retracted into the support frame (403). While being retracted, the compression state of the automatic compensating buffer (406) is continuously strengthened, thereby enhancing the elastic force of the automatic compensating buffer (406). At the same time, the reverse elastic force of the automatic compensating buffer (406) can squeeze the T-shaped clamping slider (410), thereby improving the clamping stability. At this time, the linear electric cylinder (405) is driven to reset the ratchet string (404), so that the T-shaped clamping slider (410) can only extend outwards but cannot be retracted inwards, thereby further improving the clamping stability of the device; Step 2: After the workpiece is clamped, the lifting cylinder (408) is driven to rise. At this time, the connecting rod (409) and the lifting cylinder (408) drive the support frame (403) to return to the initial position. Since the linear electric cylinder (405) is stationary and cannot rotate in the circumferential direction, the ratchet string (404) is stationary and always engages with the ratchet teeth on the T-type clamping slider (410), preventing the clamped workpiece from being loosened. At this time, the automatic compensation buffer (406) at the end of the T-type clamping slider (410) is pulled; Step 3: Open the bevel gear reducer (601) to drive the lead screw (603) to rotate, so that the push-down nut (606) matched therewith moves up and down along the axis of the lead screw (603), thereby adjusting the upper mounting platform (1) and the sawing and shearing mechanism (20) installed on the sawing and shearing device until the initial saw teeth of the saw-shearing compound tool (208) begin to contact the bar material. At this time, the saw-shearing compound tool (208) is driven to rotate around the axis of the input shaft (203) by the driving motor (207), the flange coupling (206), the input shaft (203), the chuck flange (204) and the turntable (205), thereby realizing the sawing-shearing compound motion. After the cutting is completed, the saw-shearing compound tool returns to the initial position, and the saw-shearing compound tool (208) stops rotating; Step 4: Since the lower end of the ratchet shaft (413) is connected to the linear electric cylinder (405), the linear electric cylinder (405) extends the output shaft and pushes the ratchet string (404) to the side of the T-type clamping slider (410) without ratchet teeth, so that the ratchet string (404) and the ratchet teeth on the T-type clamping slider (410) are no longer engaged. At this time, the automatic compensation buffer (406) can pull the T-type clamping slider (410) back to the initial position. At this time, the ratchet string (404) and the ratchet teeth on the T-type clamping slider (410) are engaged, and the entire clamping mechanism returns to the initial state, and the material picking and discharging operations can be carried out.

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