A cutting device for processing springs in engineering machinery

Abstract

This invention discloses a cutting device for processing springs in engineering machinery, belonging to the field of spring processing. The cutting device includes a worktable with a mounting plate above it. A conveying mechanism for driving the mounting plate to move horizontally is mounted on the worktable. Through the interaction of a first motor, a driving gear disc, a driven gear disc, a rotating rod, a first belt gear disc, a secondary bevel gear disc, a rotating shaft, a second mounting base, a second belt gear disc, and a first connecting belt, this invention drives two main bevel gear discs and a first threaded rod to rotate simultaneously. This allows the mounting plate to move horizontally towards the cutting mechanism, causing the springs fixed on the mounting box to move along with it, completing the transport operation. Because the two main bevel gear discs and the first threaded rod can rotate simultaneously, the accuracy of the synchronous movement of the three springs is enhanced, thereby improving the accuracy of the spring cutting length.

Description

Technical Field

[0001] This invention relates to the field of spring processing technology, and in particular to a cutting device for processing springs in engineering machinery. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. It is a part made of elastic material that deforms under the action of external force and returns to its original shape after the external force is removed. Springs are generally made of spring steel and come in a variety of types. According to shape, they mainly include helical springs, spiral springs, leaf springs, and special-shaped springs. With the continuous changes in production needs, the application fields of springs are also constantly expanding, including the field of engineering machinery. This has put forward higher requirements for the production and use of springs. Since each mechanical part requires a different spring length, engineering machinery springs need to be cut into the required length using a cutting device after production.

[0003] However, in traditional cutting devices, to prevent the spring from falling off during cutting, a clamp that matches the size of the spring is usually used to fix the spring. Since each spring is a different size, the cutting device needs to frequently change the clamp when cutting springs of different sizes, thus reducing production efficiency. To address this, we propose a cutting device for spring processing in engineering machinery. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art that frequent changes of clamps are required when cutting springs of different sizes, which reduces production efficiency. Therefore, this invention proposes a cutting device for spring processing in engineering machinery.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting device for processing springs in engineering machinery includes a worktable, a mounting plate above the worktable, a conveying mechanism for moving the mounting plate horizontally on the worktable, a drive mechanism for simultaneously operating two conveying mechanisms on the worktable, a U-shaped frame fixed on the mounting plate, three mounting boxes equidistantly fixed on the mounting plate, a first locking mechanism for clamping the spring installed in each mounting box, a second locking mechanism linked to the first locking mechanism via a connecting component, a pressing mechanism installed on the second locking mechanism, a mounting frame fixed on the worktable, an adjusting mechanism installed on the mounting frame, and a cutting mechanism installed on the adjusting mechanism.

[0007] Preferably, the conveying mechanism includes four first mounting seats fixed on the workbench, and a first threaded rod is rotatably connected between two of the first mounting seats via a bearing. A main bevel gear disk is fixed to one end of each of the first threaded rods, and a movable block is threadedly connected to the outer surface of each of the first threaded rods. The mounting plate is fixed to the top of the two movable blocks.

[0008] Preferably, the driving mechanism includes a first motor fixed on the workbench, a driving gear disk fixed to the output shaft end of the first motor, a driven gear disk meshing with the outer surface of the driving gear disk, a rotating rod fixed at the axis of the driven gear disk, the rotating rod being rotatably connected to the workbench via bearings, a first belt gear disk fixed at both ends of the rotating rod, a secondary bevel gear disk meshing with the outer surface of the primary bevel gear disk, a rotating shaft fixed at the axis of the secondary bevel gear disk, a second mounting base fixed on the workbench, the rotating shaft and the second mounting base being rotatably connected via bearings, a second belt gear disk fixed at one end of the rotating shaft, and the first belt gear disk and the second belt gear disk being connected via a first connecting belt.

[0009] Preferably, the first locking mechanism includes a second motor fixed on the mounting plate, and a bidirectional lead screw is fixed to the output shaft end of the second motor. The bidirectional lead screw is rotatably connected to three mounting boxes through bearings. Six threaded blocks are threadedly connected to the outer surface of the bidirectional lead screw, and a locking plate is fixed to each threaded block through a connecting strip.

[0010] Preferably, the connecting assembly includes a third belt gear disk fixed to one end of the bidirectional lead screw, two third mounting seats symmetrically fixed on the U-shaped frame, a worm gear rotatably connected between the two third mounting seats via bearings, a fourth belt gear disk fixed to one end of the worm gear, the third belt gear disk and the fourth belt gear disk being connected by a second connecting belt, and a worm wheel meshing with the outer surface of the worm gear.

[0011] Preferably, the second locking mechanism includes a sleeve fixed at the worm gear shaft. The sleeve is rotatably connected to the U-shaped frame via a bearing. A second threaded rod is threaded into the sleeve. A connecting plate is fixed to the bottom end of the second threaded rod. Limiting strips are fixed to both sides of the connecting plate. Sliding grooves are provided on both sides of the U-shaped frame. The two limiting strips slide in the corresponding sliding grooves.

[0012] Preferably, the pressing mechanism includes six sliding rods symmetrically slidably connected within the connecting plate. A rectangular plate is fixed to one end of each sliding rod, and a return spring is sleeved on the outer surface of each sliding rod. The two ends of the return spring are respectively fixedly connected to the rectangular plate and the connecting plate, and an arc-shaped plate is fixed to the bottom of each rectangular plate.

[0013] Preferably, the adjustment mechanism includes a third motor fixed to one side of the mounting frame, a third threaded rod fixed to the output shaft end of the third motor, the third threaded rod being rotatably connected to the mounting frame via a bearing, and two crossbars symmetrically fixed on the mounting frame.

[0014] Preferably, the cutting mechanism includes a rectangular block threaded to the outer surface of the third threaded rod, a slider sliding on the outer surface of the crossbar, a fixing seat fixed to one side of the rectangular block and the slider, a cylinder fixed on the fixing seat, a fixing strip fixed to one end of the cylinder extension rod, and a cutting blade fixed to the bottom of the fixing strip.

[0015] Preferably, three scale lines are equidistantly arranged on the worktable, and the scale lines correspond to the positions of the mounting box.

[0016] Preferably, the worktable has a cutting groove located directly below the cutting blade.

[0017] Preferably, each of the mounting boxes has a limiting shell fixed inside, and each of the threaded blocks has a limiting head fixed at its bottom, with the limiting head sliding inside the limiting shell.

[0018] Preferably, each of the mounting boxes has a limiting groove, and the connecting strip slides inside the limiting groove.

[0019] Compared with the prior art, the present invention provides a cutting device for processing springs in engineering machinery, which has the following advantages:

[0020] 1. This cutting device for mechanical spring processing, through the mutual cooperation between a first motor, a driving gear disk, a driven gear disk, a rotating rod, a first belt gear disk, a secondary bevel gear disk, a rotating shaft, a second mounting base, a second belt gear disk, and a first connecting belt, can drive two main bevel gear disks and a first threaded rod to rotate simultaneously. This allows the mounting plate to move horizontally toward the cutting mechanism, causing the springs fixed on the mounting box to move along with it, completing the transport operation. Since the two main bevel gear disks and the first threaded rod can rotate simultaneously, the accuracy of the synchronous movement of the three springs is enhanced, thereby improving the accuracy of the spring cutting length.

[0021] 2. This cutting device for mechanical spring processing, through the arrangement of a second motor, a two-way lead screw, a threaded block, a connecting bar, and a locking plate, can clamp the spring and complete the initial fixation, preventing the spring from shifting or falling during the cutting operation, thus affecting the cutting process. At the same time, it also prevents the spring from bouncing up and causing injury to the workers, thus enhancing safety.

[0022] 3. The cutting device for mechanical spring processing can fix the spring again by setting up a sleeve, a second threaded rod, a connecting plate, a limiting strip and a slide groove. Moreover, by cooperating with the first locking mechanism, it can fix springs of different curved surface sizes, so that it does not need to frequently change the fixture when cutting, which increases work efficiency and reduces production costs.

[0023] 4. The cutting device for mechanical spring processing enables the first locking mechanism and the second locking mechanism to be linked through the mutual cooperation between the third belt gear disc, the third mounting base, the worm, the fourth belt gear disc, the second connecting belt and the worm wheel. This allows the first locking mechanism to drive the second locking mechanism to operate simultaneously. Both are controlled by the same power source, reducing the number of power sources required.

[0024] 5. The cutting device for mechanical spring processing, through the arrangement of slide rod, rectangular plate, return spring and arc plate, avoids the phenomenon of poor spring fixing effect caused by the conflict between the first locking mechanism and the pressing mechanism when it is necessary to fix a large volume spring.

[0025] 6. The cutting device for mechanical spring processing can drive the cutting mechanism to move left or right in the horizontal direction through the cooperation between the third motor, the third threaded rod and the crossbar. The adjustment is made electrically, eliminating the need for manual adjustment and reducing the labor intensity.

[0026] The parts of this device not described herein are the same as or can be implemented using existing technologies. This invention can fix springs of different curved surface sizes, so that they do not need to be frequently changed when cutting, which increases work efficiency and reduces production costs. Moreover, it enables the first locking mechanism and the second locking mechanism to be linked, so that the first locking mechanism can drive the second locking mechanism to operate at the same time. The two are controlled by the same power supply, which reduces the number of power supplies. At the same time, the use of mechanical linkage to transport the springs enhances the accuracy of the synchronous movement of the three springs, thereby improving the accuracy of the spring cutting length. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the front view structure of a cutting device for processing springs in engineering machinery proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the cutting device for processing springs in engineering machinery, taken from a bottom view, according to the present invention.

[0029] Figure 3 This is a schematic diagram of another perspective of the cutting device for processing springs in engineering machinery proposed in this invention.

[0030] Figure 4This invention proposes a cutting device for processing springs in engineering machinery. Figure 3 Enlarged schematic diagram of the structure at point A;

[0031] Figure 5 This is a schematic diagram of the mounting plate structure of a cutting device for processing springs in engineering machinery, as proposed in this invention.

[0032] Figure 6 This is a side view of the mounting plate structure of a cutting device for processing springs in engineering machinery proposed in this invention.

[0033] Figure 7 This is a schematic diagram of the internal structure of the mounting box of a cutting device for processing springs in engineering machinery, as proposed in this invention.

[0034] Figure 8 This is a schematic diagram of the locking plate structure of a cutting device for processing springs in engineering machinery according to the present invention;

[0035] Figure 9 This is a schematic diagram of the second locking mechanism and pressing mechanism of a cutting device for processing springs in engineering machinery according to the present invention;

[0036] Figure 10 This is a schematic diagram of the adjustment mechanism of a cutting device for processing springs in engineering machinery, as proposed in this invention.

[0037] Figure 11 This is a schematic diagram of the cutting mechanism structure of a cutting device for processing springs in engineering machinery, as proposed in this invention.

[0038] Figure 12 This is a schematic diagram of the workbench structure of a cutting device for processing springs in engineering machinery, as proposed in this invention.

[0039] In the diagram: 1. Workbench; 2. Mounting plate; 3. Conveying mechanism; 301. First mounting base; 302. First threaded rod; 303. Main bevel gear disk; 304. Moving block; 4. Drive mechanism; 401. First motor; 402. Driving gear disk; 403. Driven gear disk; 404. Rotating rod; 405. First belt gear disk; 406. Secondary bevel gear disk; 407. Rotating shaft; 408. Second mounting base; 409. Second belt gear disk; 4010. First connecting belt; 5. U-shaped frame; 6. Mounting box; 7. First locking mechanism; 701. Second motor; 702. Double-acting lead screw; 703. Threaded block; 704. Connecting bar; 705. Locking plate; 8. Connecting assembly; 801. Third belt gear disk; 802. Third mounting base; 803. Worm gear. 804. Rod; 805. Fourth belt gear disc; 806. Second connecting belt; 807. Worm gear; 9. Second locking mechanism; 908. Sleeve; 909. Second threaded rod; 900. Connecting plate; 900. Limiting strip; 901. Slide groove; 10. Pressing mechanism; 1001. Slide rod; 1002. Rectangular plate; 1003. Return spring; 1004. Arc plate; 11. Mounting bracket; 12. Adjusting mechanism; 1201. Third motor; 1202. Third threaded rod; 1203. Crossbar; 13. Cutting mechanism; 1301. Rectangular block; 1302. Slider; 1303. Fixed seat; 1304. Cylinder; 1305. Fixed strip; 1306. Cutting blade; 14. Scale line; 15. Groove; 16. Limiting shell; 17. Limiting head; 18. Limiting groove. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] Example 1:

[0043] Reference Figures 1-12A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for driving two conveying mechanisms 3 to operate simultaneously on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 fixed at equal intervals on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting component 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, an adjusting mechanism 12 installed on the mounting frame 11, a cutting mechanism 13 installed on the adjusting mechanism 12, and three scale lines 14 equidistantly arranged on the worktable 1, the scale lines 14 corresponding to the positions of the mounting boxes 6.

[0044] In this invention, during use, the mechanical springs are placed on three mounting boxes 6 respectively. The operator activates the first locking mechanism 7, which simultaneously clamps and secures the three springs, preventing them from shifting or falling during cutting operations, thus avoiding interference with the cutting process. It also prevents the springs from springing up and causing injury to the operator, enhancing safety. Through the linkage effect of the connecting component 8, when the first locking mechanism 7 is operating, it can drive the second locking mechanism 9 to operate as well. The second locking mechanism 9 further presses and secures the springs, resulting in a better fixation effect. This allows for the fixation of springs with different surface sizes, eliminating the need for frequent clamp changes during cutting, increasing work efficiency and reducing production costs. In conjunction with the pressing mechanism 10, when fixing larger springs, it prevents conflict between the first locking mechanism 7 and the pressing mechanism 10, avoiding poor spring fixation. Through the connecting component 8, the first locking... The tightening mechanism 7 and the second locking mechanism 9 can be linked together and are controlled by the same power source, reducing the number of power sources required. After all three springs are fixed, the operator starts the drive mechanism 4, which drives the two conveying mechanisms 3 to operate simultaneously. This allows the mounting plate 2 to move horizontally toward the cutting mechanism 13, causing the springs fixed on the mounting box 6 to move along with it, completing the transport operation. Since the two conveying mechanisms 3 can rotate simultaneously, the accuracy of the synchronous movement of the three springs is enhanced, thereby improving the accuracy of the spring cutting length. When the spring moves below the cutting mechanism 13, the length to be cut can be easily determined by the scale line 14. The spring is then cut by the cutting mechanism 13. After the first spring is cut, the cutting mechanism 13 is moved above the second spring by the adjusting mechanism 12 for another cut. The adjustment is done electrically, eliminating the need for manual adjustment and reducing labor intensity.

[0045] Example 2:

[0046] Reference Figures 1-12A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for simultaneously operating two conveying mechanisms 3 on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 equidistantly fixed on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting assembly 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, an adjusting mechanism 12 installed on the mounting frame 11, and a cutting mechanism 13 installed on the adjusting mechanism 12. The conveying mechanism 3 includes four first mounting seats 301 fixed on the worktable 1, two first mounting seats 301 rotatably connected by a first threaded rod 302 via a bearing, one end of each first threaded rod 302 being fixed with a main bevel gear disk 303. The outer surface of rod 302 is threaded with movable blocks 304. Mounting plate 2 is fixed on the top of two movable blocks 304. The drive mechanism 4 includes a first motor 401 fixed on the worktable 1. The output shaft end of the first motor 401 is fixed with a drive gear disk 402. The outer surface of the drive gear disk 402 is meshed with a driven gear disk 403. A rotating rod 404 is fixed at the shaft center of the driven gear disk 403. The rotating rod 404 is rotatably connected to the worktable 1 through bearings. Both ends of the rotating rod 404 are fixed. There is a first belt gear disk 405, and a secondary bevel gear disk 406 is meshed with the outer surface of the main bevel gear disk 303. A rotating shaft 407 is fixed at the axis of the secondary bevel gear disk 406. A second mounting base 408 is fixed on the worktable 1. The rotating shaft 407 and the second mounting base 408 are rotatably connected by bearings. A second belt gear disk 409 is fixed at one end of the rotating shaft 407. The first belt gear disk 405 and the second belt gear disk 409 are connected by a first connecting belt 4010.

[0047] In this invention, when springs need to be transported, the operator starts the first motor 401, which drives the active gear disk 402 to rotate. Since the active gear disk 402 is meshed with the driven gear disk 403, it drives the driven gear disk 403 and the rotating rod 404 to rotate. The rotating rod 404 then drives the two first belt gear disks 405 to rotate. Since the first belt gear disk 405 and the second belt gear disk 409 are connected by the first connecting belt 4010, the second belt gear disk 409 and the rotating shaft 407 are driven to rotate. With the linkage effect of the secondary bevel gear disk 406 and the main bevel gear disk 303, the two first threaded rods 302 rotate together. Through the rotation of the first threaded rods 302, the moving block 304 can be driven to move horizontally toward the cutting mechanism 13, so that the mounting box 6 and the springs fixed on the mounting box 6 move together. Since the two first threaded rods 302 can rotate simultaneously, the accuracy of the synchronous movement of the three springs is enhanced, thereby improving the accuracy of the spring cutting length.

[0048] Example 3:

[0049] Reference Figures 1-12 A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for simultaneously operating two conveying mechanisms 3 on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 equidistantly fixed on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting assembly 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, and an adjusting mechanism 1 installed on the mounting frame 11. 2. A cutting mechanism 13 is installed on the adjusting mechanism 12. The first locking mechanism 7 includes a second motor 701 fixed on the mounting plate 2. A bidirectional lead screw 702 is fixed to the output shaft end of the second motor 701. The bidirectional lead screw 702 is rotatably connected to three mounting boxes 6 through bearings. Six threaded blocks 703 are threadedly connected to the outer surface of the bidirectional lead screw 702. Locking plates 705 are fixed to each threaded block 703 through connecting strips 704. Limiting shells 16 are fixed inside each mounting box 6. Limiting heads 17 are fixed to the bottom of each threaded block 703. The limiting heads 17 slide inside the limiting shells 16. Limiting grooves 18 are opened on each mounting box 6. Connecting strips 704 slide inside the limiting grooves 18.

[0050] In this invention, when it is necessary to fix the springs, the three springs are placed on the three mounting boxes 6 respectively. The operator starts the second motor 701, which drives the bidirectional lead screw 702 to rotate. Since the limiting head 17 can slide within the limiting shell 16 to limit the movement, it drives the two threaded blocks 703 to move towards the middle, causing the connecting strip 704 and the locking plate 705 to move together. The locking plate 705 is used to lock the two sides of the spring, completing the initial fixation. Through the setting of the limiting groove 18, when the two threaded blocks 703 move towards the middle, the connecting strip 704 can slide within the limiting groove 18, avoiding affecting the movement of the locking plate 705.

[0051] Example 4:

[0052] Reference Figures 1-12 A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for simultaneously driving two conveying mechanisms 3 on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 equidistantly fixed on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting assembly 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, an adjusting mechanism 12 installed on the mounting frame 11, and a cutting mechanism 13 installed on the adjusting mechanism 12. The first locking mechanism 7 includes a first locking mechanism 5 fixed to the mounting plate 2. The second motor 701 has a bidirectional lead screw 702 fixed to its output shaft end. The bidirectional lead screw 702 is rotatably connected to three mounting boxes 6 via bearings. Six threaded blocks 703 are threadedly connected to the outer surface of the bidirectional lead screw 702. Each threaded block 703 is fixed with a locking plate 705 via a connecting strip 704. The connecting assembly 8 includes a third belt gear disk 801 fixed to one end of the bidirectional lead screw 702. Two third mounting seats 802 are symmetrically fixed on the U-shaped frame 5. A worm gear 803 is rotatably connected between the two third mounting seats 802 via bearings. A fourth belt gear disk 804 is fixed to one end of the worm gear 803. The third belt gear disk 801 and the fourth belt gear disk 804 are connected by a second connecting belt 805. A worm wheel 806 is meshed with the outer surface of the worm gear 803.

[0053] In this invention, when the bidirectional lead screw 702 rotates, it drives the third belt gear disk 801 to rotate. Since the third belt gear disk 801 and the fourth belt gear disk 804 are connected by a second connecting belt 805, the fourth belt gear disk 804 is driven to rotate. The fourth belt gear disk 804 then drives the worm 803 to rotate. The worm 803 and the worm wheel 806 are meshed, which in turn drives the worm wheel 806 and the sleeve 901 to rotate together. This allows the first locking mechanism 7 and the second locking mechanism 9 to be linked. Furthermore, the rotation of the bidirectional lead screw 702 and the sleeve 901 is controlled by a single power source, the second motor 701, reducing the number of power sources required.

[0054] Example 5:

[0055] Reference Figures 1-12 A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for simultaneously driving two conveying mechanisms 3 on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 equidistantly fixed on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting assembly 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, an adjusting mechanism 12 installed on the mounting frame 11, and a cutting mechanism 13 installed on the adjusting mechanism 12. The second locking mechanism 9 includes a worm gear 806 fixed to it. A sleeve 901 is located at the center of the shaft. The sleeve 901 is rotatably connected to the U-shaped frame 5 via a bearing. A second threaded rod 902 is threaded into the sleeve 901. A connecting plate 903 is fixed to the bottom end of the second threaded rod 902. Limiting strips 904 are fixed to both sides of the connecting plate 903. Slide grooves 905 are provided on both sides of the U-shaped frame 5. The two limiting strips 904 slide in the corresponding slide grooves 905. The pressing mechanism 10 includes six slide rods 1001 symmetrically slidably connected in the connecting plate 903. A rectangular plate 1002 is fixed to one end of each slide rod 1001. A return spring 1003 is sleeved on the outer surface of each slide rod 1001. The two ends of the return spring 1003 are fixedly connected to the rectangular plate 1002 and the connecting plate 903, respectively. An arc plate 1004 is fixed to the bottom of each rectangular plate 1002.

[0056] In this invention, when the sleeve 901 rotates, the second threaded rod 902 is threadedly connected to the sleeve 901, and the limiting strip 904 slides in the groove 905 to limit movement, thereby driving the connecting plate 903 to move downwards. This causes the rectangular plate 1002 and the arc-shaped plate 1004 to move downwards together. When the arc-shaped plate 1004 contacts the spring, it will drive the sliding rod 1001 to slide in the connecting plate 903, compressing the reset spring 1003. Therefore, when the arc-shaped plate 1004 contacts the spring, it does not affect the movement of the locking plate 705. This avoids the first locking mechanism 7 and the pressing mechanism 10 from conflicting when fixing a large volume spring, resulting in a poor spring fixing effect. The arc-shaped plate 1004 fixes the spring again, making the fixing effect better. Moreover, it can fix springs of different curved surface sizes, so that it does not need to frequently change the clamps when cutting.

[0057] Example 6:

[0058] Reference Figures 1-12 A cutting device for processing springs in engineering machinery includes a worktable 1, a mounting plate 2 above the worktable 1, a conveying mechanism 3 for moving the mounting plate 2 horizontally on the worktable 1, a driving mechanism 4 for simultaneously driving two conveying mechanisms 3 on the worktable 1, a U-shaped frame 5 fixed on the mounting plate 2, three mounting boxes 6 equidistantly fixed on the mounting plate 2, a first locking mechanism 7 for clamping springs installed in the mounting boxes 6, a second locking mechanism 9 linked to the first locking mechanism 7 via a connecting assembly 8, a pressing mechanism 10 installed on the second locking mechanism 9, a mounting frame 11 fixed on the worktable 1, an adjusting mechanism 12 installed on the mounting frame 11, and a cutting mechanism 13 installed on the adjusting mechanism 12. The adjusting mechanism 12 includes components fixed to the mounting frame 11. A third motor 1201 is located on one side. A third threaded rod 1202 is fixed to the output shaft end of the third motor 1201. The third threaded rod 1202 is rotatably connected to the mounting bracket 11 through a bearing. Two crossbars 1203 are symmetrically fixed on the mounting bracket 11. The cutting mechanism 13 includes a rectangular block 1301 threadedly connected to the outer surface of the third threaded rod 1202. Slider 1302 slides on the outer surface of the crossbars 1203. A fixed seat 1303 is fixed to one side of the rectangular block 1301 and the slider 1302. A cylinder 1304 is fixed on the fixed seat 1303. A fixing strip 1305 is fixed to one end of the extension rod of the cylinder 1304. A cutting blade 1306 is fixed to the bottom of the fixing strip 1305. A cutting groove 15 is opened on the worktable 1. The cutting groove 15 is located directly below the cutting blade 1306.

[0059] In this invention, when a spring needs to be cut, the cylinder 1304 is activated, driving the fixing bar 1305 and the cutting blade 1306 to move downwards. The cutting blade 1306 cuts the spring. After cutting the spring, the cutting blade 1306 moves into the cutting groove 15. The cutting groove 15 ensures that the spring is cut and prevents the cutting mechanism 13 from damaging the worktable 1, thus enhancing protection. After the first spring is cut, the third motor 1201 is activated, driving the third threaded rod 1202 to rotate. Due to the limiting effect of the crossbar 1203 and the slider 1302, the fixing seat 1303 moves to the right in the horizontal direction, causing the cutting blade 1306 to move to the next spring for cutting. The adjustment is done electrically, eliminating the need for manual adjustment and reducing labor intensity.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cutting-off device for engineering machinery spring machining, comprising a workbench (1), characterized in that, A mounting plate (2) is provided above the workbench (1). Two conveying mechanisms (3) for driving the mounting plate (2) to move in its horizontal direction are installed on the workbench (1). A driving mechanism (4) for driving the two conveying mechanisms (3) to operate simultaneously is installed on the workbench (1). A U-shaped frame (5) is fixed on the mounting plate (2). Three mounting boxes (6) are fixed at equal intervals on the mounting plate (2). A first locking mechanism (7) for clamping springs is installed in the mounting box (6). A second locking mechanism (9) is linked to the first locking mechanism (7) through a connecting component (8). A pressing mechanism (10) is installed on the second locking mechanism (9). A mounting frame (11) is fixed on the workbench (1). An adjusting mechanism (12) is installed on the mounting frame (11). A cutting mechanism (13) is installed on the adjusting mechanism (12). The conveying mechanism (3) includes two first mounting seats (301) fixed on the workbench (1). A first threaded rod (302) is rotatably connected between the two first mounting seats (301) through a bearing. A main bevel gear disk (303) is fixed to one end of each first threaded rod (302). A moving block (304) is threadedly connected to the outer surface of each first threaded rod (302). The mounting plate (2) is fixed to the top of the two moving blocks (304). The drive mechanism (4) includes a first motor (401) fixed on the workbench (1). A drive gear disk (402) is fixed to the output shaft end of the first motor (401). A driven gear disk (403) is meshed with the outer surface of the drive gear disk (402). A rotating rod (404) is fixed at the axis of the driven gear disk (403). The rotating rod (404) is rotatably connected to the workbench (1) via bearings. First belt gear disks (405) are fixed to both ends of the rotating rod (404). The main bevel gear disk (… The outer surface of the 303) is meshed with a secondary bevel gear disk (406), and a rotating shaft (407) is fixed at the axis of the secondary bevel gear disk (406). A second mounting seat (408) is fixed on the worktable (1). The rotating shaft (407) and the second mounting seat (408) are rotatably connected by a bearing. A second belt gear disk (409) is fixed at one end of the rotating shaft (407). The first belt gear disk (405) and the second belt gear disk (409) are connected by a first connecting belt (4010). The first locking mechanism (7) includes a second motor (701) fixed on the mounting plate (2). The output shaft end of the second motor (701) is fixed with a bidirectional lead screw (702). The bidirectional lead screw (702) is rotatably connected to three mounting boxes (6) through bearings. The outer surface of the bidirectional lead screw (702) is threaded with six threaded blocks (703). Each threaded block (703) is fixed with a locking plate (705) through a connecting strip (704). The connecting assembly (8) includes a third belt gear disk (801) fixed to one end of a bidirectional lead screw (702), two third mounting seats (802) symmetrically fixed on the U-shaped frame (5), a worm gear (803) rotatably connected between the two third mounting seats (802) through a bearing, a fourth belt gear disk (804) fixed to one end of the worm gear (803), the third belt gear disk (801) and the fourth belt gear disk (804) being connected by a second connecting belt (805), and a worm wheel (806) meshing with the outer surface of the worm gear (803); The second locking mechanism (9) includes a sleeve (901) fixed at the shaft of the worm gear (806). The sleeve (901) is rotatably connected to the U-shaped frame (5) through a bearing. A second threaded rod (902) is threadedly connected to the sleeve (901). A connecting plate (903) is fixed at the bottom end of the second threaded rod (902). Limiting strips (904) are fixed on both sides of the connecting plate (903). Sliding grooves (905) are opened on both sides of the U-shaped frame (5). The two limiting strips (904) slide in the corresponding sliding grooves (905). The pressing mechanism (10) includes six sliding rods (1001) symmetrically slidably connected in the connecting plate (903). One end of each sliding rod (1001) is fixed with a rectangular plate (1002). Each sliding rod (1001) has a return spring (1003) sleeved on its outer surface. The two ends of the return spring (1003) are fixedly connected to the rectangular plate (1002) and the connecting plate (903) respectively. Each rectangular plate (1002) has an arc plate (1004) fixed at its bottom. The adjustment mechanism (12) includes a third motor (1201) fixed on one side of the mounting frame (11). The output shaft end of the third motor (1201) is fixed with a third threaded rod (1202). The third threaded rod (1202) is rotatably connected to the mounting frame (11) through a bearing. Two crossbars (1203) are symmetrically fixed on the mounting frame (11). The cutting mechanism (13) includes a rectangular block (1301) threaded to the outer surface of the third threaded rod (1202). The outer surface of the crossbar (1203) is slidably covered with sliders (1302). A fixing seat (1303) is fixed to one side of the rectangular block (1301) and the slider (1302). A cylinder (1304) is fixed on the fixing seat (1303). A fixing strip (1305) is fixed to one end of the extension rod of the cylinder (1304). A cutting blade (1306) is fixed to the bottom of the fixing strip (1305).

2. A cutting apparatus for engineering machine spring machining according to claim 1, characterized in that The workbench (1) has three scale lines (14) equidistantly arranged on it, and the scale lines (14) correspond to the positions of the mounting box (6).

3. A cutting apparatus for engineering machine spring machining according to claim 1, characterized in that, The workbench (1) is provided with a cutting groove (15), which is located directly below the cutting blade (1306).

4. The apparatus according to claim 1, wherein Each of the mounting boxes (6) has a limiting shell (16) fixed inside, and each of the threaded blocks (703) has a limiting head (17) fixed at the bottom. The limiting head (17) slides inside the limiting shell (16).

5. The apparatus of claim 1 wherein: Each mounting box (6) has a limiting groove (18) and the connecting strip (704) slides inside the limiting groove (18).

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