Automatic metal bar cutting device

Abstract

The invention provides an automatic metal bar cutting device, and relates to the technical field of metal bar machining equipment. A vertical frame is fixedly arranged on the top of the cutting table in a vertically upward mode, and a feeding frame used for conveying and straightening bars is fixedly arranged at one end of the vertical frame. A traction seat is fixedly arranged on the vertical frame at the inner end of the feeding frame; a feeding air cylinder is arranged on the back of the vertical frame in the feeding direction. Through the synergistic effect that the fixed wheel and the movable wheel in the feeding frame are matched with the straightening pressing rod, the straightening pressing rod is driven by the feeding air cylinder to extrude the protrusion of the movable wheel sleeve, the height of the movable wheel sleeve is forced to be dynamically adjusted under the action of the first spring, and it is ensured that the bar is always subjected to uniform straightening pressure in the conveying process. The vertical position of the straightening pressing rod can be rapidly adjusted through the adjusting screw rod, the straightening requirements of bars with different diameters are met, bending deformation of the bars is effectively eliminated, and the follow-up cutting precision and the finished product quality are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal bar processing equipment, and particularly relates to an automatic metal bar cutting device. Background Art

[0002] During the processing of metal bars, traditional cutting equipment usually completes straightening, feeding, clamping, and cutting operations through independent processes. In existing bar cutting devices, although initial straightening is achieved through a roller group, the straightening pressure is fixed, making it difficult to adapt to bars with different bending degrees. Especially when the diameter of the bar changes, the straightening mechanism lacks the ability of dynamic adjustment, resulting in local bending of the straightened bar, which directly affects the quality of the subsequent cutting end face. In addition, in existing equipment, the feeding and clamping actions are mostly controlled by independent drive sources. Separate cylinders are used to drive the clamping mechanism and the conveying wheels respectively, and it is difficult to accurately match their time sequences, easily resulting in clamping lag or feeding slippage, leading to the accumulation of feeding length errors and affecting the consistency of batch processing. Summary of the Invention

[0003] The present invention relates to an automatic metal bar cutting device, which realizes the full-process automatic control of bar processing by integrating functions of straightening, feeding, clamping, cutting, and discharging.

[0004] The present invention provides an automatic metal bar cutting device for cutting and straightening bars, comprising: a cutting table; a vertical stand is fixedly arranged vertically upward on the top of the cutting table, and a feeding rack for conveying and straightening bars is fixedly arranged at one end of the stand; a pulling seat is fixedly arranged on the stand at the inner end of the feeding rack; a feeding cylinder is arranged on the back of the stand along the feeding direction; a control box is arranged at the bottom of the front end of the stand; a cutting cylinder is vertically fixedly arranged on the stand on the side of the pulling seat away from the feeding rack, a stop rack is fixedly arranged on the stand on the side of the cutting cylinder away from the pulling seat, and a discharging table is fixedly arranged on the cutting table below the stop rack; the end of the piston rod of the feeding cylinder is fixedly connected with a feeding mechanism, and the feeding mechanism is composed of a push fork, a sleeve rod, a second spring, and a rack; a straightening assembly and a clamping assembly are arranged on the pulling seat, the straightening assembly includes a straightening seat, an adjustment hole, a straightening pressure rod, and an adjustment screw; the clamping assembly includes a clamping cylinder, an upper clamping seat, a clamping table, a pressing shaft, and a lower clamping seat; an interlocking plate is arranged between the clamping assembly and the feeding mechanism, and the pulling seat and the feeding mechanism are synchronously interlocked. When the piston rod of the feeding cylinder is pushed out, the feeding mechanism does not drive feeding, the clamping assembly does not clamp the bar, and the straightening assembly straightens the bar in the feeding rack. When the piston rod of the feeding cylinder contracts, the feeding mechanism drives feeding, and the clamping assembly synchronously clamps the bar; a cutting mechanism that moves vertically is arranged at the end of the piston rod of the cutting cylinder.

[0005] Optionally, feeding moving holes are formed in parallel on the vertical frame above the pulling seat; a clutch moving hole is vertically formed at a position corresponding to the position where the interlocking plate passes through the vertical frame, and the clutch moving hole provides a vertical moving space for the interlocking plate.

[0006] Optionally, the lower end of the feeding frame is a fixed wheel seat. Fixed wheels are rotatably installed on the fixed wheel seat at uniform intervals through rotating shafts. The fixed wheels are provided with wheel grooves for the bar stock to pass through. The rotating shafts of the fixed wheels pass through the feeding frame backward and are fixedly provided with gears; above the fixed wheel seat on the feeding frame is a movable wheel seat. A buffer rod is vertically arranged in the movable wheel seat. The lower end of the buffer rod is fixedly provided with a movable wheel sleeve. A straightening through hole is formed through the movable wheel sleeve along the bar stock conveying direction. An arc-shaped protrusion is arranged upward at the bottom of the straightening through hole. The lower end of the movable wheel sleeve is rotatably installed with a movable wheel through a rotating shaft. The movable wheel sleeve and the fixed wheel convey the bar stock. A first spring is sleeved on the buffer rod, and the first spring provides a downward thrust for the movable wheel sleeve all the time.

[0007] Optionally, the end of the piston rod of the feeding air cylinder is vertically and fixedly connected with a "C"-shaped push fork. A vertical sleeve rod is fixedly arranged at the fork opening of the push fork. A horizontal rack is vertically and slidably sleeved on the sleeve rod. A second spring is sleeved on the sleeve rod at the bottom of the rack. The rack is always tangent to the vertical frame. Teeth are arranged at the bottom of the rack. The rack moves vertically on the sleeve rod. When the rack moves downward, that is, when the piston rod of the feeding air cylinder contracts, the teeth are engaged with the gear to drive the fixed wheel to rotate and convey the bar stock.

[0008] Optionally, parallel clamping rails are arranged downward on the pulling seat. A sliding table is slidably installed on the clamping rails through sliders. A connecting rod is vertically arranged at the upper end of the sliding table. The connecting rod passes through the feeding moving hole and is fixedly connected with the push fork; a straightening seat is also vertically fixed on the sliding table. An adjustment hole is formed through the straightening seat from left to right. A straightening pressure rod is arranged through the adjustment hole. An adjustment screw rod is vertically screwed downward at the upper end of the straightening seat. The lower end of the adjustment screw rod is vertically and rotatably connected with the straightening pressure rod. The straightening pressure rod moves vertically in the adjustment hole. The bottom end of the straightening pressure rod is a rounded corner structure. The straightening pressure rod slides in each straightening through hole and contacts the protrusion. When the piston rod of the feeding air cylinder is pushed out, the straightening pressure rod moves along with the bar stock incoming direction. The straightening pressure rod extrudes each movable wheel sleeve to keep the height horizontal. The bar stock is straightened. The straightening pressure rod can be vertically adjusted to adapt to bar stocks of different sizes.

[0009] Optionally, a clamping air cylinder is vertically arranged downward at the bottom of the straightening pressure rod at the straightening seat. The end of the piston rod of the clamping air cylinder is fixedly connected with an upper clamping seat. A plug rod is vertically and slidably inserted into the straightening seat at the upper end of the upper clamping seat. A lower clamping seat corresponding to the upper clamping seat is arranged on the sliding table below the upper clamping seat. When the piston rod of the feeding air cylinder contracts, the piston rod of the clamping air cylinder is synchronously pushed out to clamp the bar stock below and move it forward synchronously. The clamping air cylinder follows the vertical adjustment of the straightening pressure rod to adapt to bar stocks of different sizes.

[0010] Optionally, a clamping platform adapted to the interlocking plate is provided at a position near the sliding table at the top of the upper clamping seat. Press shafts are symmetrically arranged on the left and right at the upper end of the clamping platform to slidably clamp the interlocking plate in the clamping platform. When the upper clamping seat moves vertically, the interlocking plate moves vertically synchronously. When the upper clamping seat moves horizontally, the interlocking plate remains stationary. The interlocking plate is in an L-shaped structure. A T-shaped fastener is vertically provided at one end of the interlocking plate corresponding to the rack. The fastener is buckled on the upper end of the rack. A pressure rod with the bottom tangent to the rack is also vertically provided on the fastener. When the piston rod of the clamping cylinder pushes out the clamping rod to clamp the bar stock, the upper clamping seat moves downward, and the interlocking plate follows and moves downward to press the rack to mesh with the gear. The rack drives the fixed wheel to synchronously convey the material following the contraction of the piston rod of the feeding cylinder, realizing synchronous clamping and conveying of the bar stock.

[0011] Optionally, the end of the piston rod of the cutting cylinder is perpendicularly and fixedly connected to the cutting sliding seat. The left and right ends of the cutting sliding seat are slidably clamped on the vertical frame through vertical side rails. An arc cutting head is provided on the front end face of the cutting sliding seat. The arc cutting head moves vertically with the cutting sliding seat to cut the bar stock. A discharging contact plate is also perpendicularly and fixedly provided at the lower end of the cutting sliding seat. Adjustment holes with uniform intervals are provided at the end of the discharging contact plate. A contact block is vertically fixed in one of the adjustment holes. The upper end of the contact block is a slope structure inclined towards the discharging table.

[0012] Optionally, a stop baffle is vertically slidably arranged on the stop frame along the bar stock conveying direction. The stop baffle is fixed in contact with the stop frame through an adjustment bolt. A support block is vertically provided on the stop baffle towards the bar stock feeding end. The conveyed bar stock is placed in the groove of the support block. A discharging hole penetrating up and down is opened at the bottom of the groove of the support block. The contact block corresponds vertically to the discharging hole. When the piston rod of the cutting cylinder is pushed upward, the arc cutting head moves upward to cut the bar stock. Continuing to move upward, the contact block moves upward into the discharging hole to push out the cut bar stock upward to slide onto the discharging table. The upper end of the discharging table is a slope inclined outward and downward.

[0013] The present invention provides an automatic cutting device for metal bar stocks, which has the following beneficial effects: 1. Through the cooperative action of the fixed wheel and the movable wheel in the feeding frame and the straightening pressure rod in the present invention, the straightening pressure rod squeezes the protrusion of the movable wheel sleeve under the drive of the feeding cylinder, forcing the movable wheel sleeve to dynamically adjust its height under the action of the first spring, ensuring that the bar stock is always subjected to uniform straightening pressure during the conveying process. The adjustment screw can quickly adjust the vertical position of the straightening pressure rod to adapt to the straightening requirements of bar stocks with different diameters, effectively eliminating the bending deformation of the bar stock and significantly improving the accuracy of subsequent cutting and the finished product quality.

[0014] 2. In the present invention, through the linkage design of the interlocking plate with the rack and the clamping table by means of fasteners, the clamping action of the clamping cylinder is precisely synchronized with the gear meshing state of the rack. When the clamping cylinder extends, the interlocking plate presses down the rack to engage with the gear, ensuring that the bar stock is stably fed by the fixed wheel in the clamped state, avoiding slipping or deviation; when the feeding cylinder resets, the interlocking plate moves upward to disengage the meshing, and the decoupled action design effectively reduces mechanical interference and improves the reliability of the system.

[0015] 3. In the present invention, the arc cutting head realizes the efficient non-contact cutting of the bar stock through the vertical precise movement of the cutting slide along the side rail, and the cut is smooth and burr-free. At the same time, the contact block of the unloading touch plate automatically jacks up the bar stock after cutting is completed, and the inclined plane structure is used to guide the bar stock to slide out along the unloading table, seamlessly connecting the cutting and unloading actions, reducing manual intervention and improving the continuous operation efficiency. The position of the contact block in the adjustment hole is adjustable to adapt to the jacking requirements of bar stocks with different diameters, further expanding the applicability of the device.

[0016] 4. In the present invention, the stop plate of the stop bracket is horizontally slid and positioned by the adjustment bolt, and the cutting length of the bar stock can be quickly set; the vertical linkage adjustment of the straightening pressure rod and the clamping cylinder, combined with the height adjustment of the contact block of the unloading touch plate, enables the same device to process bar stocks of various specifications, reducing the equipment transformation cost. In addition, the groove structures of the fixed wheel and the movable wheel are compatible with bar stocks of different cross-sectional shapes, enhancing the process flexibility.

[0017] 5. In the present invention, from bar stock straightening, clamping and feeding, positioning and cutting to automatic unloading, each link realizes a full-automatic cycle through cylinder drive and interlocking control. The telescopic actions of the feeding cylinder and the cutting cylinder are highly coordinated, reducing the idle stroke time; the laser cutting process has low energy consumption and no tool wear, combined with the elastic reset design of the spring, reducing the equipment maintenance frequency and energy consumption cost. The control box centrally manages each execution unit, supports parameterized setting and fault monitoring, and further improves the production intelligence level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0019] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0020] In the accompanying drawings: Figure 1 The first axonometric structural schematic diagram of the present invention is shown; Figure 2 The second axonometric structural schematic diagram of the present invention is shown; Figure 3 The Figure 2 amplified partial structural schematic diagram of A in the present invention is shown; Figure 4It shows a schematic diagram of the axial structure of the feed rack of the present invention in a partially disassembled state; Figure 5 It shows a schematic diagram of the axial structure of the feed rack of the present invention in a partially removed state; Figure 6 It shows a schematic diagram of the axial structure of the straightening seat of the present invention in a split state of half parts; Figure 7 It shows a schematic diagram of the axial structure of the feeding mechanism, the clamping assembly and the driving assembly of the present invention; Figure 8 It shows a schematic diagram of the axial structure of the feeding mechanism, the clamping assembly and the driving assembly of the present invention in a partially disassembled state; Figure 9 The schematic diagram of the axial structure of the cutting mechanism and the stop frame of the present invention is shown. Attached photos

[0021] 1. Cutting table; 2. Stand; 201. Feeding activity hole; 202. Clutch activity hole; 3. Control box; 4. Feeding rack; 401. Fixed wheel seat; 402. Fixed wheel; 4021. Gear; 404. Movable wheel seat; 405. Buffer rod; 406. Movable wheel sleeve; 4061. Straightening perforation; 4062. Protrusion; 407. Movable wheel; 408. First spring; 5. Feed cylinder; 501. Push fork; 502. Sleeve rod; 503. Second spring; 504. Rack; 6. Pulling seat; 601. Clamping rail; 602. Slide; 603. Connecting rod; 604. Straightening seat; 6041. Adjusting hole; 6042. Straightening pressure rod; 6043. Adjusting screw; 605. Clamping cylinder; 606. Upper clamping seat; 6061. Clamping table; 6062. Pressing shaft; 607. Lower clamping seat; 7. Cutting cylinder; 701. Cutting slide; 7011. Arc cutting head; 702. Side rail; 703. Unloading contact plate; 7031. Mounting hole; 704. Contact block; 8. Stop frame; 801. Stop plate; 802. Support block; 8021. Discharge hole; 803. Adjustment bolt; 9. Unloading platform; 10. Bar stock; 11. Interlocking plate; 1101. Fastener; 1102. Pressure rod. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 9 : Embodiment 1: The present invention provides an automatic cutting device for metal bar stock, which is used for cutting and straightening bar stock 10, and includes: a cutting table 1; a vertical stand 2 is fixedly arranged vertically upward on the top of the cutting table 1, and a feeding rack 4 for conveying and straightening bar stock 10 is fixedly arranged at one end of the stand 2; a pulling seat 6 is fixedly arranged on the stand 2 at the inner end of the feeding rack 4; a feeding cylinder 5 is arranged on the back of the stand 2 along the feeding direction; a control box 3 is arranged at the bottom of the front end of the stand 2; a cutting cylinder 7 is vertically fixedly arranged on the stand 2 on the side of the pulling seat 6 away from the feeding rack 4, and a stop frame 8 is fixedly arranged on the stand 2 on the side of the cutting cylinder 7 away from the pulling seat 6, and a discharging table 9 is fixedly arranged on the cutting table 1 below the stop frame 8; the end of the piston rod of the feeding cylinder 5 is fixedly connected with a feeding mechanism, and the feeding mechanism is composed of a push fork 501, a sleeve rod 502, a second spring 503, and a rack 504; a straightening component and a clamping component are arranged on the pulling seat 6, the straightening component includes a straightening seat 604, an adjustment hole 6041, a straightening pressure rod 6042, and an adjustment screw 6043; the clamping component includes a clamping cylinder 605, an upper clamping seat 606, a clamping platform 6061, a pressing shaft 6062, and a lower clamping seat 607; an interlocking plate 11 is arranged between the clamping component and the feeding mechanism, and the pulling seat 6 and the feeding mechanism are synchronously interlocked. When the piston rod of the feeding cylinder 5 is pushed out, the feeding mechanism does not drive feeding, the clamping component does not clamp the bar stock 10, and the straightening component straightens the bar stock 10 in the feeding rack 4. When the piston rod of the feeding cylinder 5 contracts, the feeding mechanism drives feeding, and the clamping component synchronously clamps the bar stock 10; a cutting mechanism that moves vertically is arranged at the end of the piston rod of the cutting cylinder 7.

[0024] Among them, feeding moving holes 201 are opened on the stand 2 above the pulling seat 6 in parallel; a clutch moving hole 202 is vertically opened at the position of the stand 2 corresponding to the passing of the interlocking plate 11, and the clutch moving hole 202 provides a vertical moving space for the interlocking plate 11.

[0025] Among them, the lower end of the feeding rack 4 is a fixed wheel seat 401. Fixed wheels 402 are rotatably installed on the fixed wheel seat 401 at equal intervals through rotating shafts. The fixed wheels 402 are provided with wheel grooves for the bar stock 10 to pass through. The rotating shafts of the fixed wheels 402 pass backward through the feeding rack 4 and are fixedly provided with gears 4021; above the fixed wheel seat 401 on the feeding rack 4 is a movable wheel seat 404. A buffer rod 405 is vertically arranged in the movable wheel seat 404. The lower end of the buffer rod 405 is fixedly provided with a movable wheel sleeve 406. A straightening perforation 4061 is vertically penetrated in the movable wheel sleeve 406 along the conveying direction of the bar stock 10. An arc-shaped protrusion 4062 is arranged upward at the bottom of the straightening perforation 4061. The lower end of the movable wheel sleeve 406 is rotatably installed with a movable wheel 407 through a rotating shaft. The movable wheel sleeve 406 and the fixed wheel 402 convey the bar stock 10. A first spring 408 is sleeved on the buffer rod 405, and the first spring 408 provides a downward thrust for the movable wheel sleeve 406 all the time.

[0026] Among them, the end of the piston rod of the feeding cylinder 5 is vertically and fixedly connected to a "C"-shaped push fork 501. A vertical sleeve rod 502 is fixedly arranged at the fork opening of the push fork 501. A horizontal rack 504 is vertically and slidably sleeved on the sleeve rod 502. A second spring 503 is sleeved on the sleeve rod 502 at the bottom of the rack 504. The rack 504 is always tangent to the vertical frame 2. The bottom of the rack 504 is provided with teeth. The rack 504 moves vertically on the sleeve rod 502. When the rack 504 moves downward, that is, when the piston rod of the feeding cylinder 5 contracts, the teeth are engaged with the gear 4021 to drive the fixed wheel 402 to rotate and convey the bar stock 10.

[0027] Among them, the pulling seat 6 is provided with parallel downward clamping rails 601. A sliding table 602 is installed on the clamping rails 601 through sliders. A connecting rod 603 is vertically arranged at the upper end of the sliding table 602. The connecting rod 603 passes through the feeding movable hole 201 and is fixedly connected to the push fork 501; a straightening seat 604 is also vertically fixed on the sliding table 602. An adjustment hole 6041 is horizontally penetrated in the straightening seat 604. A straightening pressure rod 6042 is penetrated in the adjustment hole 6041. An adjustment screw 6043 is vertically screwed downward at the upper end of the straightening seat 604. The lower end of the adjustment screw 6043 is vertically and rotatably connected to the straightening pressure rod 6042. The straightening pressure rod 6042 moves vertically in the adjustment hole 6041. The bottom end of the straightening pressure rod 6042 is a rounded corner structure. The straightening pressure rod 6042 slides in each straightening perforation 4061 and contacts the protrusion 4062. When the piston rod of the feeding cylinder 5 is pushed out, the straightening pressure rod 6042 moves along with the direction of the bar stock 10. The straightening pressure rod 6042 squeezes each movable wheel sleeve 406 to keep the height horizontal all the time, and the bar stock 10 is straightened. The straightening pressure rod 6042 can be vertically adjusted to adapt to bar stocks 10 of different sizes.

[0028] Among them, a clamping cylinder 605 is vertically downwardly provided at the bottom of the straightening pressure bar 6042 at the straightening seat 604. The end of the piston rod of the clamping cylinder 605 is fixedly connected to the upper clamping seat 606. An insertion rod is vertically and slidably inserted into the straightening seat 604 at the upper end of the upper clamping seat 606. A corresponding lower clamping seat 607 is provided on the sliding table 602 below the upper clamping seat 606. When the piston rod of the feeding cylinder 5 contracts, the piston rod of the clamping cylinder 605 is synchronously pushed out to clamp the lower bar stock 10 and move it forward synchronously. The clamping cylinder 605 follows the vertical adjustment of the straightening pressure bar 6042 to adapt to bar stocks 10 of different sizes.

[0029] Among them, a clamping table 6061 adapted to the interlocking plate 11 is provided at a position near the sliding table 602 at the top of the upper clamping seat 606. Pressing shafts 6062 are symmetrically arranged on the left and right at the upper end of the clamping table 6061 to slidably clamp the interlocking plate 11 in the clamping table 6061. When the upper clamping seat 606 moves vertically, the interlocking plate 11 moves vertically synchronously. When the upper clamping seat 606 moves horizontally, the interlocking plate 11 does not move. The interlocking plate 11 is an L-shaped structure. A T-shaped fastener 1101 is vertically provided at one end of the interlocking plate 11 corresponding to the rack 504. The fastener 1101 is buckled on the upper end of the rack 504. A pressing bar 1102 whose bottom is tangent to the rack 504 is also vertically provided on the fastener 1101. When the piston rod of the clamping cylinder 605 is pushed out to clamp the bar stock 10, the upper clamping seat 606 moves downward, and the interlocking plate 11 follows and moves downward to press the rack 504 into engagement with the gear 4021. The rack 504 drives the fixed wheel 402 to convey materials synchronously following the contraction of the piston rod of the feeding cylinder 5. The clamping and conveying of the bar stock 10 are synchronous.

[0030] Embodiment 2, on the basis of Embodiment 1, the end of the piston rod of the cutting cylinder 7 is vertically and fixedly connected to the cutting slide seat 701. The left and right ends of the cutting slide seat 701 are slidably clamped on the vertical frame 2 through vertical side rails 702. An arc cutting head 7011 is provided on the front end face of the cutting slide seat 701. The arc cutting head 7011 moves vertically with the cutting slide seat 701 to cut the bar stock 10. A discharging contact plate 703 is also vertically and fixedly provided at the lower end of the cutting slide seat 701. Uniformly spaced mounting holes 7031 are provided at the end of the discharging contact plate 703. A contact block 704 is vertically fixed in one of the mounting holes 7031. The upper end of the contact block 704 is a slope structure inclined towards the discharging table 9.

[0031] Among them, a stop plate 801 is vertically slidably provided on the stop frame 8 along the conveying direction of the bar stock 10. The stop plate 801 and the stop frame 8 are fixed against each other by an adjustment bolt 803. A support block 802 is vertically provided on the stop plate 801 facing the feeding end of the bar stock 10. The conveyed bar stock 10 is placed in the groove of the support block 802. A discharge hole 8021 penetrating up and down is opened at the bottom of the groove of the support block 802. The contact block 704 is vertically corresponding to the discharge hole 8021. When the piston rod of the cutting cylinder 7 is pushed upward, the arc cutting head 7011 moves upward to cut the bar stock 10. Continuing to move upward, the contact block 704 moves upward into the discharge hole 8021 and pushes out the cut bar stock 10 upward to slide onto the discharge table 9. The upper end of the discharge table 9 is a slope inclined outward and downward.

[0032] The following is a further explanation and description of the structures in the above content: A fixed wheel 402 is provided on the fixed wheel seat 401 of the feeding frame 4. The gear 4021 at the end of its rotating shaft meshes with the rack 504 in the feeding mechanism to form a power transmission path. The movable wheel seat 404 provides an elastic pressure downward for the movable wheel sleeve 406 through the buffer rod 405 and the first spring 408. A protrusion 4062 is provided in the straightening perforation 4061 of the movable wheel sleeve 406 and cooperates with the rounded end of the straightening pressure rod 6042. When the piston rod of the feeding cylinder 5 is pushed out, the straightening pressure rod 6042 moves with the sliding table 602, squeezing the protrusion 4062 in the straightening perforation 4061, forcing the movable wheel sleeve 406 to adjust its height, so that the bar stock 10 forms a continuous straightening effect between the fixed wheel 402 and the movable wheel 407. The adjustment screw 6043 can adjust the vertical position of the straightening pressure rod 6042 to adapt to bar stocks 10 of different diameters.

[0033] The push fork 501 of the feeding cylinder 5 drives the rack 504 to move through the sleeve rod 502. The second spring 503 provides a thrust always upward for the rack 504. When the piston rod of the feeding cylinder 5 contracts, the push fork 501 pulls the sliding table 602 to move backward. At this time, the fastener 1101 of the interlocking plate 11 compresses the rack 504 to move downward due to the downward movement of the upper clamping seat 606. The teeth at the bottom of the rack 504 mesh with the gear 4021, driving the fixed wheel 402 to rotate to realize the feeding of the bar stock 10. On the contrary, when the piston rod of the feeding cylinder 5 is pushed out, the rack 504 disengages from the gear 4021 and the feeding stops. The interlocking plate 11 synchronizes the clamping action of the clamping cylinder 605 with the meshing state of the rack 504 through the sliding fit of the pressure rod 1102 and the clamping table 6061 to ensure synchronous feeding when clamping the bar stock 10.

[0034] The clamping cylinder 605 is installed at the bottom of the straightening pressure rod 6042 and can adapt to different sizes of the bar stock 10 with the vertical adjustment of the straightening pressure rod 6042. When the piston rod of the feeding cylinder 5 contracts, the clamping cylinder 605 pushes out the piston rod, enabling the upper clamping seat 606 and the lower clamping seat 607 to clamp the bar stock 10 and move synchronously with the sliding table 602 to complete feeding. The sliding connection design between the clamping platform 6061 and the interlocking plate 11 allows the upper clamping seat 606 to drive the interlocking plate 11 to press down the rack 504 when moving vertically, while the interlocking plate 11 remains stationary when moving horizontally, achieving action decoupling.

[0035] The cutting cylinder 7 drives the cutting slide 701 to move vertically along the side rail 702, driving the arc cutting head 7011 to complete the cutting of the bar stock 10. The contact block 704 at the end of the unloading touch plate 703 corresponds to the unloading hole 8021 of the stop bracket 8. When the piston rod of the cutting cylinder 7 is pushed upward, the inclined surface of the contact block 704 passes through the unloading hole 8021 to lift the cut bar stock 10, causing it to slide out along the slope of the unloading table 9. The stop plate 801 is fixed in position by adjusting bolts 803 and can adapt to the positioning requirements of bar stocks 10 of different lengths.

[0036] After the bar stock 10 is straightened by the feeding frame 4, the feeding cylinder 5 contracts to drive the rack 504 to drive the fixed wheel 402 to rotate for feeding. At the same time, the clamping assembly clamps the bar stock 10 and moves it forward. When the front end of the bar stock 10 contacts the supporting block 802 of the stop plate 801, the cutting cylinder 7 is activated to complete the cutting, and the contact block 704 synchronously ejects the bar stock 10 to the unloading table 9. The entire process realizes the sequential control of clamping, feeding, and cutting through the interlocking plate 11, significantly improving the processing efficiency and accuracy.

[0037] Working principle: First, the bar stock 10 to be processed is inserted through the wheel groove between the fixed wheel 402 and the movable wheel 407 of the feeding frame 4, and the front end of the bar stock 10 extends to the lower clamping seat 607 of the pulling seat 6. By rotating the adjustment screw 6043 on the straightening seat 604, the rounded end of the straightening pressure rod 6042 is pressed down into the straightening perforation 4061 of the movable wheel sleeve 406 and contacts the protrusion 4062. The feeding cylinder 5 is activated to push out its piston rod, and the push fork 501 drives the sliding table 602 to move forward along the card rail 601. At this time, the straightening pressure rod 6042 squeezes the protrusions 4062 of each straightening perforation 4061, forcing the movable wheel sleeve 406 to maintain the same horizontal height under the elastic action of the buffer rod 405 and the first spring 408. The bar stock 10 is continuously straightened under the clamping of the fixed wheel 402 and the movable wheel 407.

[0038] After straightening is completed, the piston rod of the feeding cylinder 5 contracts, and the push fork 501 pulls the sliding table 602 backward through the connecting rod 603. During this process, the piston rod of the clamping cylinder 605 is synchronously pushed out, driving the upper clamping seat 606 to move downward to jointly clamp the bar stock 10 with the lower clamping seat 607. When the upper clamping seat 606 moves downward, the clamping platform 6061 at its top drives the interlocking plate 11 to press downward, causing the pressing rod 1102 of the fastener 1101 to press the rack 504 to move downward against the elastic force of the second spring 503. The teeth at the bottom of the rack 504 mesh with the gear 4021. At this time, the contraction action of the feeding cylinder 5 drives the gear 4021 to rotate through the rack 504, driving the fixed wheel 402 and the movable wheel 407 to rotate synchronously. The bar stock 10 is clamped and conveyed in the feeding direction until the front end of the bar stock 10 enters the groove of the supporting block 802 of the stop frame 8.

[0039] After the front end of the bar stock 10 contacts the supporting block 802, the piston rod of the cutting cylinder 7 is pushed upward, driving the cutting slide 701 to rise along the side rail 702, driving the arc cutting head 7011 to cut the bar stock 10. During the cutting process, the unloading contact plate 703 at the lower end of the cutting slide 701 moves upward accordingly. The inclined surface of the contact block 704 passes through the unloading hole 8021 of the supporting block 802, jacking up the cut bar stock 10, and enabling it to slide out along the slope of the unloading table 9 to complete unloading. By adjusting the position of the stop baffle 801 on the stop frame 8 and locking the adjusting bolt 803, the cutting length of the bar stock 10 can be set; by replacing the mounting holes 7031 at different positions on the unloading contact plate 703 to install the contact block 704, the jacking height requirements of bar stocks 10 with different diameters can be adapted.

[0040] After cutting is completed, the piston rod of the cutting cylinder 7 contracts and resets, and the arc cutting head 7011 and the contact block 704 move downward synchronously to disengage from the bar stock 10. The piston rod of the feeding cylinder 5 is pushed out again, causing the sliding table 602 to move forward and reset. The straightening pressure rod 6042 re-squeezes the movable wheel sleeve 406 into the straightening state. At the same time, the piston rod of the clamping cylinder 605 contracts to release the bar stock 10. The interlocking plate 11 moves upward with the upper clamping seat 606, and the rack 504 disengages from the gear 4021 under the action of the second spring 503. The device returns to the initial state and waits for the next cycle. The entire process coordinates the timing of the clamping, feeding, and cutting actions through the interlocking plate 11, realizing efficient and continuous automated processing.

[0041] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention, and other structures can refer to the general design.

[0042] 2. Without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0043] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered by the protection scope of the present invention.

Claims

1. An automatic cutting device for metal bar stock, used for cutting and straightening bar stock (10), comprising: Cutting table (1); a vertical stand (2) is fixedly arranged vertically upward on the top of the cutting table (1), characterized in that a feeding rack (4) for conveying and straightening the bar stock (10) is fixedly arranged at one end of the stand (2); a pulling seat (6) is fixedly arranged on the stand (2) at the inner end of the feeding rack (4); a feeding cylinder (5) is arranged on the back of the stand (2) along the feeding direction; a control box (3) is arranged at the bottom of the front end of the stand (2); a cutting cylinder (7) is vertically fixedly arranged on the stand (2) on the side of the pulling seat (6) away from the feeding rack (4), a stop frame (8) is fixedly arranged on the stand (2) on the side of the cutting cylinder (7) away from the pulling seat (6), and a discharging table (9) is fixedly arranged on the cutting table (1) below the stop frame (8); the end of the piston rod of the feeding cylinder (5) is fixedly connected with a feeding mechanism, and the feeding mechanism is composed of a push fork (501), a sleeve rod (502), a second spring (503) and a rack (504); a straightening component and a clamping component are arranged on the pulling seat (6), the straightening component includes a straightening seat (604), an adjustment hole (6041), a straightening pressure rod (6042) and an adjustment screw (6043); the clamping component includes a clamping cylinder (605), an upper clamping seat (606), a clamping table (6061), a pressing shaft (6062) and a lower clamping seat (607); an interlocking plate (11) is arranged between the clamping component and the feeding mechanism, and the pulling seat (6) and the feeding mechanism are synchronously interlocked. When the piston rod of the feeding cylinder (5) is pushed out, the feeding mechanism does not drive feeding, the clamping component does not clamp the bar stock (10), and the straightening component straightens the bar stock (10) in the feeding rack (4). When the piston rod of the feeding cylinder (5) contracts, the feeding mechanism drives feeding, and the clamping component synchronously clamps the bar stock (10); a cutting mechanism that moves vertically is arranged at the end of the piston rod of the cutting cylinder (7).

2. The automatic cutting device for metal bar stock according to claim 1, characterized in that, Feeding moving holes (201) that are parallel to each other are formed in the stand (2) above the pulling seat (6); a clutch moving hole (202) is vertically formed in the stand (2) at the position corresponding to the passing of the interlocking plate (11), and the clutch moving hole (202) provides a vertical moving space for the interlocking plate (11).

3. The automatic metal bar cutting device according to claim 1, characterized in that, The lower end of the feeding rack (4) is a fixed wheel seat (401). Fixed wheels (402) are rotatably installed on the fixed wheel seat (401) at uniform intervals through rotating shafts. A wheel groove for the bar stock (10) to pass through is provided on the fixed wheel (402). A gear (4021) is fixedly provided at the rear of the rotating shaft of the fixed wheel (402) after passing through the feeding rack (4). Above the fixed wheel seat (401), the feeding rack (4) is provided with a movable wheel seat (404). A buffer rod (405) is vertically arranged in the movable wheel seat (404). A movable wheel sleeve (406) is fixedly provided at the lower end of the buffer rod (405). A straightening through hole (4061) is penetrated along the conveying direction of the bar stock (10) in the movable wheel sleeve (406). An arc-shaped protrusion (4062) is provided upward at the bottom of the straightening through hole (4061). A movable wheel (407) is rotatably installed at the lower end of the movable wheel sleeve (406) through a rotating shaft. The movable wheel sleeve (406) and the fixed wheel (402) convey the bar stock (10). A first spring (408) is sleeved on the buffer rod (405). The first spring (408) provides a downward thrust for the movable wheel sleeve (406) all the time.

4. An automatic metal bar cutting device according to claim 3, characterized in that, The end of the piston rod of the feeding cylinder (5) is vertically and fixedly connected with a "C"-shaped push fork (501). A vertical sleeve rod (502) is fixedly provided at the fork opening of the push fork (501). A horizontal rack (504) is vertically and slidably sleeved on the sleeve rod (502). A second spring (503) is sleeved on the sleeve rod (502) at the bottom of the rack (504). The rack (504) is always tangent to the vertical frame (2). Teeth are provided at the bottom of the rack (504). The rack (504) moves vertically on the sleeve rod (502). When the rack (504) moves downward, that is, when the piston rod of the feeding cylinder (5) contracts, the teeth are engaged with the gear (4021) to drive the fixed wheel (402) to rotate and convey the bar stock (10).

5. The automatic metal bar cutting device according to claim 4, characterized in that, The pulling seat (6) is provided with downwardly parallel clamping rails (601). A sliding table (602) is slidably mounted on the clamping rails (601) through sliders. A connecting rod (603) is vertically provided at the upper end of the sliding table (602). The connecting rod (603) passes through the feeding moving hole (201) and is fixedly connected to the pushing fork (501). A straightening seat (604) is also vertically fixed on the sliding table (602). An adjustment hole (6041) is horizontally penetrated through the straightening seat (604). A straightening pressure rod (6042) is penetrated through the adjustment hole (6041). An adjustment screw rod (6043) is vertically screwed to the upper end of the straightening seat (604) downward. The lower end of the adjustment screw rod (6043) is vertically rotatably connected to the straightening pressure rod (6042). The straightening pressure rod (6042) moves vertically in the adjustment hole (6041). The bottom end of the straightening pressure rod (6042) is a rounded corner structure. The straightening pressure rod (6042) is slidably placed in each straightening through hole (4061) and contacts the protrusion (4062). When the piston rod of the feeding air cylinder (5) is pushed out, the straightening pressure rod (6042) moves along with it in the direction of the bar material (10). The straightening pressure rod (6042) squeezes each movable wheel sleeve (406) to keep the height level. The bar material (10) is straightened. The straightening pressure rod (6042) can be vertically adjusted to adapt to bar materials (10) of different sizes.

6. The automatic cutting device for metal bar stock according to claim 5, characterized in that, A clamping air cylinder (605) is vertically downward provided at the bottom of the straightening pressure rod (6042) at the straightening seat (604). The end of the piston rod of the clamping air cylinder (605) is fixedly connected to an upper clamping seat (606). A plug rod is vertically and slidably inserted into the straightening seat (604) at the upper end of the upper clamping seat (606). A lower clamping seat (607) corresponding to it is provided on the sliding table (602) below the upper clamping seat (606). When the piston rod of the feeding air cylinder (5) contracts, the piston rod of the clamping air cylinder (605) is synchronously pushed out to clamp the lower bar material (10) and move it forward synchronously. The clamping air cylinder (605) vertically adjusts along with the straightening pressure rod (6042) to adapt to bar materials (10) of different sizes.

7. The automatic metal bar cutting device according to claim 6, characterized in that, At the position near the slide table (602) at the top of the upper clamping seat (606), there is a clamping platform (6061) adapted to the interlocking plate (11). On the upper end of the clamping platform (6061), press shafts (6062) are symmetrically arranged on the left and right to slidably clamp the interlocking plate (11) in the clamping platform (6061). When the upper clamping seat (606) moves vertically, the interlocking plate (11) moves vertically synchronously. When the upper clamping seat (606) moves horizontally, the interlocking plate (11) remains stationary. The interlocking plate (11) is in an L-shaped structure. At one end of the interlocking plate (11) corresponding to the rack (504), a T-shaped fastener (1101) is vertically provided. The fastener (1101) is buckled on the upper end of the rack (504). On the fastener (1101), a pressure rod (1102) with the bottom tangent to the rack (504) is also vertically provided. When the piston rod of the clamping cylinder (605) pushes out to clamp the bar stock (10), the upper clamping seat (606) moves downward, and the interlocking plate (11) moves downward accordingly to press the rack (504) into engagement with the gear (4021). The rack (504) drives the fixed wheel (402) to convey the material synchronously with the contraction of the piston rod of the feeding cylinder (5). The clamping and conveying of the bar stock (10) are synchronous.

8. An automatic cutting device for metal bar stock according to claim 1, characterized in that, The end of the piston rod of the cutting cylinder (7) is perpendicularly and fixedly connected to the cutting slide seat (701). The left and right ends of the cutting slide seat (701) are slidably clamped on the vertical frame (2) through vertical side rails (702). On the front end face of the cutting slide seat (701), an arc cutting head (7011) is provided. The arc cutting head (7011) moves vertically with the cutting slide seat (701) to cut the bar stock (10). At the lower end of the cutting slide seat (701), a discharging contact plate (703) is perpendicularly and fixedly provided. At the end of the discharging contact plate (703), evenly spaced mounting holes (7031) are provided. In one of the mounting holes (7031), a contact block (704) is vertically fixed. The upper end of the contact block (704) is a slope structure inclined towards the discharging table (9).

9. An automatic cutting device for metal bar stock according to claim 8, characterized in that, On the stop frame (8), a stop baffle (801) is vertically slidable along the conveying direction of the bar stock (10). The stop baffle (801) is fixed against the stop frame (8) through an adjusting bolt (803). On the stop baffle (801), a support block (802) is vertically provided towards the feeding end of the bar stock (10). The conveyed bar stock (10) is placed in the groove of the support block (802). A discharging hole (8021) penetrating through the upper and lower parts is opened at the bottom of the groove of the support block (802). The contact block (704) is vertically corresponding to the discharging hole (8021). When the piston rod of the cutting cylinder (7) pushes upward, the arc cutting head (7011) moves upward to cut the bar stock (10). Continuing to move upward, the contact block (704) moves upward into the discharging hole (8021) to push out the cut bar stock (10) upward and slide it onto the discharging table (9). The upper end of the discharging table (9) is a slope inclined outward and downward.

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