Machining cutting device for mechanical design and manufacturing

Abstract

The invention relates to the field of machining cutting equipment, and discloses a machining cutting device for mechanical design and manufacture, which comprises a working table, a first movable table is movably mounted on one side of the front end of a vertical frame through a guide rail, a second movable table is arranged below the first movable table, and a rotating shaft is movably mounted in the inner middle of the second movable table; one end of the rotating shaft extends to the outside of the second movable table and is fixedly provided with a cutting blade, the two sides of the bottom end of the first movable table are connected to the top end of the second movable table through reset springs, a first driving bevel gear is fixedly installed on the outer diameter of the middle of the rotating shaft, and a short shaft is movably installed on the inner top of the second movable table. Different workpieces can be stably clamped, surface damage is avoided, precise cutting is achieved through the two-way spiral groove, the tool load is reduced through vibration cutting, the service life is prolonged, burrs are reduced, operation is easy and convenient, the structure is compact, and the machining quality and efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of machining cutting equipment, and specifically to a machining cutting device for mechanical design and manufacturing. Background Art

[0002] In the field of mechanical design and manufacturing, machining cutting is a key process, and its processing quality and efficiency directly affect the performance and production cycle of products. Traditional machining cutting devices generally have problems such as poor workpiece clamping stability, insufficient cutting accuracy, and short tool life.

[0003] The workpiece clamping structures of existing cutting devices mostly adopt rigid clamping methods, such as simple bolt fastening or direct pressure from cylinders, and it is difficult to accurately control the clamping force. When machining workpieces of different sizes and materials, there is a tendency for insufficient clamping force to cause workpiece displacement, or for excessive clamping force to cause indentations and deformations on the workpiece surface, seriously affecting machining accuracy and product qualification rate. For example, when machining thin-walled metal pipe fittings, excessive clamping force will cause local depressions in the pipe fittings, damaging their structural integrity; while insufficient clamping force cannot ensure the stability of the pipe fittings during cutting, resulting in skewed cuts.

[0004] During the cutting process, the cutting blades of traditional devices usually only perform a single rotary cutting motion, resulting in large cutting resistance, serious tool wear. Frequent tool replacement not only increases production costs but also reduces production efficiency. At the same time, the single rotary cutting method is difficult to ensure the flatness of the cut, often generating a large amount of burrs and flash, which requires a large amount of subsequent manpower and equipment for grinding treatment, further increasing processing costs and time costs. In addition, the motion control of the cutting mechanism mostly relies on manual operation or simple mechanical transmission, making it difficult to achieve precise up and down reciprocating motion, resulting in inconsistent cutting depths and affecting cutting quality. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a machining cutting device for mechanical design and manufacturing, which solves problems such as unstable workpiece clamping, easy damage, insufficient cutting accuracy, fast tool wear, short tool life, and poor cut quality of traditional machining cutting devices. Through innovative structures, stable clamping, precise cutting are achieved, the tool load is reduced, burrs are reduced, and processing quality and efficiency are improved.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A machining cutting device for mechanical design and manufacturing, including a processing table, a vertical frame is installed at the rear side of the top of the processing table, a first movable table is movably installed on one side of the front end of the vertical frame through a guide rail, a second movable table is arranged below the first movable table, a rotating shaft is movably installed in the middle of the second movable table, and one end of the rotating shaft extends to the outside of the second movable table and is fixedly installed with a cutting blade.

[0007] Preferably, both sides of the bottom end of the first movable table are connected to the top end of the second movable table through return springs. A first driving bevel gear is fixedly installed on the outer diameter of the middle part of the rotating shaft. A short shaft is movably installed on the inner top of the second movable table. A first driven bevel gear is fixedly installed at the bottom end of the short shaft, and the first driven bevel gear is meshed and connected to the inner end of the first driving bevel gear. The top end of the short shaft extends above the second movable table and is fixedly installed with a lower clamping plate. A upper clamping plate is fixedly installed in the middle of the bottom end of the first movable table. A plurality of hemispherical protrusions are fixedly installed on the inner ends of the lower clamping plate and the upper clamping plate, and the positions of the hemispherical protrusions on the upper and lower sides are staggered with each other.

[0008] Preferably, two slide rails are fixedly installed in the middle of the top end of the processing table. Slide blocks are movably installed on both sides of the top ends of the slide rails. A cross frame is fixedly installed below the processing table. Rotating frames are movably installed at both ends of the cross frame. Spring plates are fixedly installed on both sides inside the cross frame, and the ends of the spring plates extend into the corresponding rotating frames. Pressing rollers are fixedly installed on the inner top sides of the rotating frames, and the bottom ends of the pressing rollers are attached to the upper surfaces of the corresponding spring plates. Connecting seats are fixedly installed at the top ends of the rotating frames. Push rods are movably installed on the upper sides of the inner ends of the connecting seats. The ends of the push rods are movably installed on the outer ends of the corresponding slide blocks. Clamping plates are fixedly installed at the top ends of the slide blocks through brackets.

[0009] Preferably, a cylindrical groove is formed in the middle of the first movable table. A rotating column is movably arranged inside the cylindrical groove. A bidirectional spiral groove is formed on the outer diameter of the rotating column. A round head pin is fixedly installed on one side of the inner top of the cylindrical groove, and the end of the round head pin is movably arranged inside the bidirectional spiral groove.

[0010] A transmission shaft is movably installed on the upper side of the front end of the vertical frame. A second driving bevel gear is fixedly installed at one end of the transmission shaft close to the first movable table. A second driven bevel gear is fixedly installed at the top end of the rotating column, and the second driven bevel gear is meshed and connected to the inner end of the second driving bevel gear.

[0011] Preferably, a first motor is fixedly installed on the other side of the front end of the vertical frame. A main shaft is fixedly installed at the driving end of the first motor. A driving wheel is fixedly installed on the outer diameter of the main shaft. A driven wheel is fixedly installed on the outer diameter of the side of the transmission shaft away from the first movable table. A transmission belt is connected between the outer diameters of the driven wheel and the driving wheel. The end of the main shaft is installed with a coupling through a universal joint, and the end of the coupling is installed at one end of the rotating shaft through a universal joint.

[0012] Preferably, a second motor is fixedly installed in the middle of the bottom end of the processing table. The driving end of the second motor extends above the processing table and is fixedly installed with a turntable. Both sides of the top end of the turntable are movably installed with connecting rods. Both sides of the top end of the slide rail are movably installed with push plates near the inner ends of the sliding tables. The ends of the connecting rods are movably installed at the inner ends of the corresponding push plates.

[0013] Preferably, positioning ring seats are movably installed on both sides inside the cross frame. A double-acting cylinder is fixedly installed at the bottom end of the cross frame, and the driving ends on both sides of the double-acting cylinder are respectively fixedly installed at the bottoms of the corresponding positioning ring seats.

[0014] Preferably, a feeding table is fixedly installed in the middle of the upper surface of the processing table through support legs. A cutting groove is opened on one side of the top end of the feeding table.

[0015] The present invention provides a mechanical processing and cutting device for mechanical design and manufacturing. It has the following beneficial effects:

[0016] 1. Through the linkage of components such as the second motor, turntable, connecting rod, and push plate in the present invention, the sliding table and the clamping plate are first pushed outwards. After placing the workpiece, the motor rotates in reverse. By using the rotating frame and the spring plate in cooperation, the spring plate releases elastic potential energy to drive the clamping plate to clamp the workpiece inwards. During this process, when the spring plate bends and returns to its original position, the change in the force arm compensates for the change in the elastic force, ensuring a stable clamping force for workpieces of different sizes, avoiding wear and deformation of the outer surface of the workpiece caused by excessive clamping force, and guaranteeing the integrity of the workpiece before processing and the subsequent processing accuracy. In addition, the double-acting cylinder can adjust the position of the positioning ring seat, changing the support point of the spring plate, enabling the device to adapt to the clamping requirements of workpieces of different materials and improving the versatility of the equipment.

[0017] 2. When the rotating shaft rotates in the present invention, it drives the first driving bevel gear, the first driven bevel gear, the short shaft, and the lower clamping plate to rotate. The staggered hemispherical protrusions between the lower clamping plate and the upper clamping plate, in cooperation with the return spring, cause the second sliding table to drive the cutting blade to vibrate rapidly up and down. This vibration cutting method reduces the overall cutting resistance, reduces the tool load, and effectively extends the service life of the cutting blade; at the same time, the grinding effect generated by the vibration can reduce the burrs and flash on the cut, improve the surface quality of the product, increase the qualified rate of product output, and reduce the subsequent grinding processing cost and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the present invention;

[0019] Figure 2 is a structural schematic diagram of the cutting blade in the present invention;

[0020] Figure 3 is an internal structural schematic diagram of the first movable table in the present invention;

[0021] Figure 4 For Figure 3 The enlarged view of part A in

[0022] Figure 5 The structural schematic diagram of the processing table in the present invention;

[0023] Figure 6 The structural schematic diagram of the cross frame in the present invention;

[0024] Figure 7 The side view of the present invention.

[0025] Wherein, 1. Processing table; 2. Vertical frame; 3. First movable table; 4. Second movable table; 5. Rotating shaft; 6. Cutting blade; 7. Return spring; 8. First driving bevel gear; 9. Short shaft; 10. First driven bevel gear; 11. Lower clamping plate; 12. Upper clamping plate; 13. Hemispherical protrusion; 14. Cylindrical groove; 15. Rotating column; 16. Bidirectional spiral groove; 17. Round head pin; 18. Transmission shaft; 19. Second driving bevel gear; 20. Second driven bevel gear; 21. First motor; 22. Main shaft; 23. Driving wheel; 24. Driven wheel; 25. Transmission belt; 26. Coupling shaft; 27. Slide rail; 28. Slide table; 29. Second motor; 30. Turntable; 31. Connecting rod; 32. Pushing plate; 33. Cross frame; 34. Rotating frame; 35. Spring plate; 36. Pressing roller; 37. Connecting seat; 38. Push rod; 39. Clamping plate; 40. Positioning ring seat; 41. Double-acting cylinder; 42. Feeding table; 43. Cutting groove. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment:

[0028] Please refer to the attached Figure 1 - attached Figure 7 , the embodiment of the present invention provides a mechanical processing and cutting device for mechanical design and manufacturing, as Figure 1As shown in the figure, it includes a processing table 1. The processing table 1 serves as the basic load-bearing component of the entire device. Its material is selected as high-strength alloy steel, which has good compressive resistance and wear resistance, and can stably support the structures of various parts of the device. A vertical frame 2 is installed at the rear side of the top of the processing table 1. The vertical frame 2 is vertically fixed to the processing table 1, and welding technology is used to ensure a firm connection, providing a reliable vertical installation surface for subsequent components. A first movable table 3 is movably installed on one side of the front end of the vertical frame 2 through a guide rail. The first movable table 3 can perform linear reciprocating motion in the vertical direction along the guide rail. A second movable table 4 is arranged below the first movable table 3, and the two realize relative motion through a specific mechanical structure. A rotating shaft 5 is movably installed in the middle part of the second movable table 4. The rotating shaft 5 is made of high-hardness alloy steel, and its surface is quenched to enhance wear resistance and fatigue resistance. One end of it extends to the outside of the second movable table 4 and is fixedly installed with a cutting blade 6. The cutting blade 6 is made of cemented carbide, and the cutting edge is precisely ground to achieve efficient cutting.

[0029] In this embodiment, both sides of the bottom end of the first movable table 3 are connected to the top end of the second movable table 4 through return springs 7. The return springs 7 are selected as compression springs, and their elastic coefficients are precisely calculated and adjusted, and they can quickly reset after being deformed by force, providing stable elastic support for the second movable table 4. A first driving bevel gear 8 is fixedly installed on the outer diameter of the middle part of the rotating shaft 5. The first driving bevel gear 8 and the rotating shaft 5 are connected by a key connection method to ensure stable power transmission. A short shaft 9 is movably installed at the inner top of the second movable table 4. The short shaft 9 is installed in the second movable table 4 through a bearing and can rotate flexibly. A first driven bevel gear 10 is fixedly installed at the bottom end of the short shaft 9, and the first driven bevel gear 10 is meshed with the inner side end of the first driving bevel gear 8. The gear module of the two is 2, and the transmission ratio is optimized to ensure the high efficiency of power transmission. The top end of the short shaft 9 extends above the second movable table 4 and is fixedly installed with a lower clamping plate 11. The middle part of the bottom end of the first movable table 3 is fixedly installed with an upper clamping plate 12. Both the lower clamping plate 11 and the upper clamping plate 12 are made of high-strength steel plates, and a number of hemispherical protrusions 13 are fixedly installed at their inner side ends, and the positions of the upper and lower hemispherical protrusions 13 are staggered. The surface of the hemispherical protrusions 13 is hardened, and the protrusion height is 3 mm, which is used to generate special friction and vibration effects.

[0030] Specifically, when the rotating shaft 5 rotates, it will also drive the first driving bevel gear 8 to rotate. The first driving bevel gear 8 will drive the first driven bevel gear 10 and the short shaft 9 to rotate, thereby driving the lower clamping plate 11 to rotate. By utilizing the hemispherical protrusions 13 that intersect with each other between the upper clamping plate 12 and the lower clamping plate 11, and in cooperation with the return spring 7, the second movable table 4 is driven to move up and down rapidly, thereby driving the high-speed rotating cutting blade 6 to vibrate up and down rapidly. This vibration cutting method reduces the overall resistance during cutting, reduces the load on the cutting tool during the cutting process, effectively extends the service life of the cutting blade 6, and at the same time can polish the cut, reducing the generation of burrs and flash, and improving the product output quality.

[0031] Furthermore, two slide rails 27 are fixedly installed in the middle of the top end of the processing table 1. The slide rails 27 adopt linear guide rails, the surfaces of which are treated with rust prevention, having high rigidity and motion accuracy. Both sides of the top end of the slide rails 27 are movably installed with slide blocks 28. The slide blocks 28 are matched with the slide rails 27 through sliders to achieve smooth linear motion. A cross frame 33 is fixedly installed below the processing table 1. The cross frame 33 is welded by rectangular steel pipes, having good structural strength and stability. Both ends of the cross frame 33 are movably installed with rotating frames 34. The rotating frames 34 are hinged to the cross frame 33 through pins and can rotate by a certain angle around the hinge point. Both sides inside the cross frame 33 are fixedly installed with spring plates 35 and the ends of the spring plates 35 all extend into the corresponding side rotating frames 34. The spring plates 35 are made of 65Mn spring steel and have good elasticity and fatigue life after heat treatment. Inside the top of the rotating frames 34, pressing rollers 36 are fixedly installed on the inner sides and the bottom ends of the pressing rollers 36 are all attached to the upper surfaces of the corresponding side spring plates 35. The surfaces of the pressing rollers 36 are coated with wear-resistant rubber layers to effectively avoid damaging the surfaces of the spring plates 35. Connecting seats 37 are fixedly installed at the top ends of the rotating frames 34. The connecting seats 37 are used to connect the rotating frames 34 and the push rods 38 and are fastened with high-strength bolts. Push rods 38 are movably installed on the upper sides of the inner ends of the connecting seats 37. The push rods 38 are connected to the connecting seats 37 through spherical plain bearings and can achieve flexible rotation in multiple directions. The ends of the push rods 38 are all movably installed on the outer ends of the corresponding side slide blocks 28. Clamping plates 39 are fixedly installed at the top ends of the slide blocks 28 through brackets. The clamping plates 39 are made of 45# steel and the surfaces are treated with blackening, having good rust prevention performance and are used to clamp the workpiece to be processed.

[0032] Further, a cylindrical groove 14 is provided in the middle of the first movable table 3. The size of the cylindrical groove 14 is precisely machined, and its diameter is adapted to the rotating column 15 to ensure that the rotating column 15 can rotate flexibly in the groove. A rotating column 15 is movably arranged inside the cylindrical groove 14. A bidirectional spiral groove 16 is provided on the outer diameter of the rotating column 15. The spiral angle and pitch of the bidirectional spiral groove 16 are specially designed to achieve the precise reciprocating movement of the first movable table 3. A round head pin 17 is fixedly installed on one side of the inner top of the cylindrical groove 14, and the end of the round head pin 17 is movably arranged inside the bidirectional spiral groove 16, and its round head part can slide smoothly in the bidirectional spiral groove 16.

[0033] Further, a transmission shaft 18 is movably installed on the upper side of the front end of the vertical frame 2. The transmission shaft 18 is installed on the vertical frame 2 through a bearing seat to achieve stable rotational movement. A second driving bevel gear 19 is fixedly installed at one end of the transmission shaft 18 close to the first movable table 3. The second driving bevel gear 19 and the transmission shaft 18 are assembled by a hot-fitting process to ensure a firm connection. A second driven bevel gear 20 is fixedly installed at the top end of the rotating column 15, and the second driven bevel gear 20 is meshed and connected to the inner side end of the second driving bevel gear 19. The gear accuracy grade of the two is 7, ensuring the smoothness and accuracy of the transmission.

[0034] Further, a first motor 21 is fixedly installed on the other side of the front end of the vertical frame 2. The first motor 21 is a three-phase asynchronous motor with a power of 5 kW and a speed of 1440 r / min, which can provide sufficient power. A main shaft 22 is fixedly installed at the driving end of the first motor 21. The main shaft 22 is designed with a hollow structure to reduce weight while ensuring sufficient strength. A driving wheel 23 is fixedly installed on its outer diameter. The driving wheel 23 and the main shaft 22 are connected by a key connection. A driven wheel 24 is fixedly installed on the outer diameter of the side of the transmission shaft 18 away from the first movable table 3. The outer diameters of the driven wheel 24 and the driving wheel 23 are connected by a transmission belt 25. The transmission belt 25 is a polyurethane synchronous belt (model HTD-5M), which has the advantages of high transmission efficiency, low noise, and no need for lubrication. The end of the main shaft 22 is installed with a coupling 26 through a universal joint, and the end of the coupling 26 is installed at one end of the rotating shaft 5 through a universal joint. The universal joint (model WSD10) can achieve flexible transmission within a certain angle range to ensure the stable transmission of power.

[0035] Specifically, when the main shaft 22 rotates, it will also drive the driving wheel 23 to rotate. The rotating driving wheel 23 drives the driven wheel 24 and the transmission shaft 18 to rotate through the transmission of the synchronous belt. The transmission shaft 18 drives the second driving bevel gear 19 at the end to rotate, and then the second driving bevel gear 19 drives the second driven bevel gear 20 and the rotating column 15 to rotate. When the rotating column 15 rotates, it will drive the bidirectional spiral groove 16 on its surface to rotate, causing the round head pin 17 to slide inside it. By using the limiting function of the guide rail, the first movable table 3 makes a linear motion in the vertical direction. The bidirectional spiral groove 16 is composed of two spiral grooves with opposite spiral directions but connected end to end. When the round head pin 17 moves to the end of one spiral groove, it will enter the head of the other spiral groove and change its motion direction, realizing the reciprocating up and down motion of the first movable table 3 in the vertical direction. When the first movable table 3 moves, it will drive the second movable table 4 to move together, realizing the up and down movement of the cutting blade 6, thereby realizing the cutting work on the workpiece.

[0036] Further, a second motor 29 is fixedly installed in the middle of the bottom end of the processing table 1. The second motor 29 is a servo motor, which has the characteristics of high precision and high response speed, and can achieve precise speed control and forward and reverse rotation. The driving end of the second motor 29 extends above the processing table 1 and is fixedly installed with a turntable 30. The turntable 30 adopts a disc-shaped structure, and its edge is chamfered to prevent scratching the operator. Both sides of the top end of the turntable 30 are movably installed with connecting rods 31. The connecting rods 31 and the turntable 30 are hinged by pins, enabling relative rotation. Both sides of the top end of the slide rail 27, near the inner ends of the slide tables 28, are movably installed with push plates 32. The push plates 32 are formed by bending steel plates, with a flat and smooth surface, and are used to push the slide tables 28 to move. The ends of the connecting rods 31 are movably installed at the inner ends of the corresponding push plates 32. By driving the turntable 30 to rotate through the second motor 29, the rotation of the turntable 30 drives one end of the connecting rods 31 on both sides of its top end to make a circular motion, and the other end of the connecting rods 31 will push the push plates 32 to move outwards. The push plates 32 will then push the two slide tables 28 to move outwards synchronously, thereby driving the two clamping plates 39 to move outwards.

[0037] Specifically, the second motor 29 rotates in reverse, driving the connecting rod 31 and the push plate 32 to move inward synchronously, releasing the blocking effect on the sliding table 28. During the process of the push plate 32 pushing the sliding table 28 to move outward before, the sliding table 28 drives the rotating frame 34 to rotate through the push rod 38 and the connecting seat 37. The rotating rotating frame 34 drives the pressing roller 36 to bend the spring plate 35 to accumulate elastic potential energy. The elastic deformation and the change of the force arm of the spring plate 35 are precisely designed to ensure a stable clamping force at different deformation degrees. When the push plate 32 releases the blocking effect on the sliding table 28, the bent spring plate 35 releases the elastic potential energy, and in turn drives the sliding table 28 to move inward through the rotating frame 34, the connecting seat 37 and the push rod 38, thereby driving the two clamping plates 39 to move inward to complete the clamping action of the workpiece. During the bending process of the rotating frame 34 and the spring plate 35, the force arm of the spring plate 35 also increases, compensating for the continuously increasing elastic force of the spring plate 35 as the bending degree increases, so that the force remains uniform throughout the process; similarly, when the spring plate 35 releases the elastic force and returns to the original position, driving the rotating frame 34 to return to the original position, the force arm will continuously decrease, compensating for the continuously decreasing elastic force of the spring plate 35 as the bending degree decreases, so that the force applied by the rotating frame 34 to the push rod 38 through the connecting seat 37 remains uniform throughout the process, and a stable clamping force can be maintained for workpieces of different sizes.

[0038] Furthermore, positioning ring seats 40 are movably installed on both inner sides of the cross frame 33. The positioning ring seats 40 can slide horizontally within the cross frame 33 to adjust the support point position of the spring plate 35. A double-acting cylinder 41 is fixedly installed at the bottom end of the cross frame 33, and the two driving ends on both sides of the double-acting cylinder 41 are respectively fixedly installed at the bottom of the corresponding side positioning ring seat 40. The double-acting cylinder 41 (model number SC50×50) has a double-acting function and can achieve precise linear reciprocating motion. By controlling the expansion and contraction of the cylinder, the position of the positioning ring seat 40 is adjusted. By controlling the double-acting cylinder 41, the positions of the two positioning ring seats 40 are changed, thereby changing the support point positions of the two spring plates 35. When the support point position changes, the elastic force generated by the spring plate 35 when the rotating frame 34 rotates by the same angle will also change accordingly, so as to facilitate adapting to workpieces of different materials.

[0039] Furthermore, a feeding table 42 is fixedly installed in the middle of the upper surface of the processing table 1 through support legs. The support legs are of a round tube structure and are connected to the processing table 1 and the feeding table 42 by welding to ensure stability. A cutting groove 43 is opened on one side of the top end of the feeding table 42. The size of the cutting groove 43 is adapted to the cutting blade 6, which is used to accommodate the waste and debris generated during the cutting process and provide space for the cutting operation.

[0040] Working principle: First, start the second motor 29. The second motor 29 drives the turntable 30 to rotate. The rotational movement of the turntable 30 drives one end of the connecting rod 31 on both sides of its top to perform circular motion. The other end of the connecting rod 31 will push the push plate 32 to move outward. The push plate 32 will then push the two sliding platforms 28 to move outward synchronously, thereby driving the two clamping plates 39 to move outward. Subsequently, place the mechanical profile workpiece to be cut on the surface of the feeding table 42. The cutting groove 43 of the feeding table 42 provides positioning and accommodation space for the workpiece. After the workpiece is placed, the second motor 29 rotates in reverse, driving the connecting rod 31 and the push plate 32 to move inward synchronously, releasing the blocking effect on the sliding platform 28. During the process of the push plate 32 pushing the sliding platform 28 to move outward before, the sliding platform 28 will drive the rotating frame 34 to rotate through the push rod 38 and the connecting seat 37. The rotating rotating frame 34 will drive the pressing roller 36 to bend the spring plate 35 to accumulate elastic potential energy. The elastic deformation and the change of the force arm of the spring plate 35 are precisely designed to ensure a stable clamping force at different deformation degrees. When the push plate 32 releases the blocking effect on the sliding platform 28, the bent spring plate 35 will release the elastic potential energy and, in turn, drive the sliding platform 28 to move inward through the rotating frame 34, the connecting seat 37, and the push rod 38, thereby driving the two clamping plates 39 to move inward to complete the clamping action of the workpiece. During the bending process of the rotating frame 34 and the spring plate 35, the force arm of the spring plate 35 is also increasing, thereby compensating for the continuously increasing elastic force of the spring plate 35 as the bending degree increases, making the force uniform throughout the process;Similarly, when the spring plate 35 returns to its original position by releasing the elastic force and drives the rotating frame 34 to return to its original position, the force arm will continuously decrease, compensating for the continuously decreasing elastic force of the spring plate 35 as the bending degree decreases. Thus, the force applied by the rotating frame 34 to the push rod 38 through the connecting seat 37 remains uniform throughout the process, and a stable clamping force can be maintained for workpieces of different sizes. Compared with traditional clamping methods, this design can keep the workpiece clamped stably without causing wear and deformation on the outer surface of the workpiece due to excessive clamping force. In addition, the position of the two positioning ring seats 40 can be changed by controlling the two-way cylinder 41, thereby changing the support point positions of the two spring plates 35. When the support point positions change, the elastic force generated by the spring plate 35 when the rotating frame 34 rotates by the same angle will also change accordingly, making it convenient to adapt to workpieces of different materials. After the workpiece is clamped, the first motor 21 is started. The first motor 21 provides powerful power for the cutting operation. The rotating main shaft 22 is driven by the first motor 21. The rotating main shaft 22 drives the coupling 26 to rotate through universal joint transmission. The coupling 26 also drives the rotating shaft 5 to rotate through universal joint transmission, thereby driving the cutting blade 6 to rotate at high speed. The high-speed rotation of the cutting blade 6, combined with its high-quality cemented carbide material, can achieve efficient cutting. At the same time, when the main shaft 22 rotates, it will also drive the driving wheel 23 to rotate. The rotating driving wheel 23 drives the driven wheel 24 and the transmission shaft 18 to rotate through the transmission of the synchronous belt. The transmission shaft 18 drives the second driving bevel gear 19 at the end to rotate, and then the second driving bevel gear 19 drives the second driven bevel gear 20 and the rotating column 15 to rotate. When the rotating column 15 rotates, it will drive the bidirectional spiral groove 16 on its surface to rotate, causing the round head pin 17 to slide inside it. Using the limiting effect of the guide rail, the first movable table 3 makes a linear motion in the vertical direction. The bidirectional spiral groove 16 is composed of two spiral grooves with opposite spiral directions but connected end to end. When the round head pin 17 moves to the end of one spiral groove, it will enter the head of the other spiral groove and change its movement direction, realizing the reciprocating up and down movement of the first movable table 3 in the vertical direction. When the first movable table 3 moves, it will drive the second movable table 4 to move together, realizing the up and down movement of the cutting blade 6, thereby realizing the cutting work on the workpiece. In addition, when the rotating shaft 5 rotates, it will also drive the first driving bevel gear 8 to rotate. The first driving bevel gear 8 will drive the first driven bevel gear 10 and the short shaft 9 to rotate, thereby driving the lower clamping plate 11 to rotate. Using the hemispherical protrusions 13 that intersect with each other between the upper clamping plate 12 and the lower clamping plate 11, and cooperating with the return spring 7, the second movable table 4 is driven to move up and down quickly, thereby driving the high-speed rotating cutting blade 6 to vibrate up and down quickly. This vibration cutting method reduces the overall resistance during cutting, reduces the load on the cutting tool during the cutting process, effectively extends the service life of the cutting blade 6, and can also polish the cut, reducing the generation of burrs and flash, improving the product output quality. Finally, after the first movable table 3 drives the cutting blade 6 to rise and return to its original position, the clamping plate 39 is loosened, and the workpiece can be taken out.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machining and cutting device for mechanical design and manufacturing, including a processing table (1), characterized in that, A vertical frame (2) is installed at the rear side of the top end of the processing table (1). A first movable table (3) is movably installed on one side of the front end of the vertical frame (2) through a guide rail. A second movable table (4) is arranged below the first movable table (3). A rotating shaft (5) is movably installed in the middle of the second movable table (4). One end of the rotating shaft (5) extends to the outside of the second movable table (4) and is fixedly installed with a cutting blade (6). Both sides of the bottom end of the first movable table (3) are connected to the top end of the second movable table (4) through return springs (7). A first driving bevel gear (8) is fixedly installed on the outer diameter of the middle part of the rotating shaft (5). A short shaft (9) is movably installed at the inner top of the second movable table (4). A first driven bevel gear (10) is fixedly installed at the bottom end of the short shaft (9), and the first driven bevel gear (10) is meshed with the inner end of the first driving bevel gear (8). The top end of the short shaft (9) extends above the second movable table (4) and is fixedly installed with a lower clamping plate (11). The middle part of the bottom end of the first movable table (3) is fixedly installed with an upper clamping plate (12). A plurality of hemispherical protrusions (13) are fixedly installed on the inner ends of the lower clamping plate (11) and the upper clamping plate (12), and the positions of the upper and lower hemispherical protrusions (13) are staggered with each other. Two slide rails (27) are fixedly installed in the middle of the top end of the processing table (1). Slide blocks (28) are movably installed on both sides of the top ends of the slide rails (27). A cross frame (33) is fixedly installed below the processing table (1). Rotating frames (34) are movably installed at both ends of the cross frame (33). Spring plates (35) are fixedly installed on both sides inside the cross frame (33), and the ends of the spring plates (35) extend into the corresponding rotating frames (34). Pressing rollers (36) are fixedly installed on the inner top sides of the rotating frames (34), and the bottom ends of the pressing rollers (36) are attached to the upper surfaces of the corresponding spring plates (35). Connecting seats (37) are fixedly installed at the top ends of the rotating frames (34). Push rods (38) are movably installed on the upper sides of the inner ends of the connecting seats (37). The ends of the push rods (38) are movably installed on the outer ends of the corresponding slide blocks (28). Clamping plates (39) are fixedly installed at the top ends of the slide blocks (28) through brackets.

2. A machining cutting device for mechanical design and manufacturing according to claim 1, characterized in that, A cylindrical groove (14) is formed in the middle of the first movable table (3). A rotating column (15) is movably arranged inside the cylindrical groove (14). A bidirectional spiral groove (16) is formed on the outer diameter of the rotating column (15). A round head pin (17) is fixedly installed on one side of the inner top of the cylindrical groove (14), and the end of the round head pin (17) is movably arranged inside the bidirectional spiral groove (16).

3. A machining cutting device for mechanical design and manufacturing according to claim 2, characterized in that, A transmission shaft (18) is movably installed on the upper side of the front end of the vertical frame (2). One end of the transmission shaft (18) close to the first movable table (3) is fixedly installed with a second driving bevel gear (19). The top end of the rotating column (15) is fixedly installed with a second driven bevel gear (20), and the second driven bevel gear (20) is meshed and connected with the inner end of the second driving bevel gear (19).

4. A machining cutting device for mechanical design and manufacturing according to claim 3, characterized in that, On the other side of the front end of the vertical frame (2), a first motor (21) is fixedly installed. The driving end of the first motor (21) is fixedly installed with a main shaft (22). A driving wheel (23) is fixedly installed on the outer diameter of the main shaft (22). A driven wheel (24) is fixedly installed on the outer diameter of the side of the transmission shaft (18) away from the first movable table (3). A transmission belt (25) is connected between the outer diameters of the driven wheel (24) and the driving wheel (23). The end of the main shaft (22) is installed with a coupling shaft (26) through a universal joint, and the end of the coupling shaft (26) is installed at one end of the rotating shaft (5) through a universal joint.

5. A machining cutting device for mechanical design and manufacturing according to claim 1, characterized in that, In the middle of the bottom end of the processing table (1), a second motor (29) is fixedly installed. The driving end of the second motor (29) extends above the processing table (1) and is fixedly installed with a turntable (30). On both sides of the top end of the turntable (30), connecting rods (31) are movably installed. On both sides of the top end of the slide rail (27), close to the inner ends of the slide tables (28), push plates (32) are movably installed. The ends of the connecting rods (31) are movably installed at the inner ends of the corresponding push plates (32).

6. A machining cutting device for mechanical design and manufacturing according to claim 1, characterized in that, On both sides inside the cross frame (33), positioning ring seats (40) are movably installed. At the bottom end of the cross frame (33), a double-acting cylinder (41) is fixedly installed, and the two driving ends of the double-acting cylinder (41) are respectively fixedly installed at the bottoms of the corresponding positioning ring seats (40).

7. A machining cutting device for mechanical design and manufacturing according to claim 1, characterized in that, On the middle part of the upper surface of the processing table (1), a feeding table (42) is fixedly installed through support legs. A cutting groove (43) is formed on one side of the top end of the feeding table (42).

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