Reversible rolling mill loading and unloading mechanism
By designing the reversible rolling mill loading and unloading mechanism, the automatic precise angle and inclination of tantalum niobium alloy rolling pieces are achieved, which solves the problems of high labor intensity and low process control, ensuring the consistency of product performance and the accuracy of the rolling process.
Patent Information
- Application Number
- CN202011349766.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-11-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2040-11-26
AI Technical Summary
During the rolling process of tantalum niobium alloy rolling, workers have high labor intensity and low process control accuracy, resulting in inconsistent product performance.
A reversible rolling mill loading and unloading mechanism is designed, including transmission parts, corner parts, inclination parts and clamping parts. The chain mechanism realizes the automatic precise angle and inclination of the rolling material, and combines the driving of the motor and oil cylinder to realize the automatic positioning of the rolling parts. and clamp to ensure the accuracy and consistency of the rolling process.
It realizes the automatic precise angle and inclination of rolling material before rolling into the roll, ensures the rotation angle and inclined rolling into the rolling roll process requirements, optimizes the process parameters through computer programs to ensure the consistency of product performance, and the equipment structure is simple and convenient to operate. Flexible and reliable tight parts.
Smart Images
Figure CN112692059B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of reversible rolling mills, and in particular relates to a loading and unloading mechanism of a reversible rolling mill. Background Art
[0002] Niobium and tantalum have similar properties. Both are rare metals with high melting and boiling points, steel gray color, high ductility and corrosion resistance. The melting point of niobium is 2468℃, the boiling point is 4742℃, and the density is 8.57g / cm 3 ; Tantalum has a melting point of 2996°C, a boiling point of 5425°C ± 100°C, and a density of 16.65 g / cm 3 .
[0003] Tantalum-niobium new materials can be used in electronics, precision ceramics, electro-acoustic-optical devices, hard alloys, biomedical engineering, superconducting industry, special steel and other industries. In the electronics industry, tantalum metal can be used to manufacture electrolytic capacitors, which have outstanding characteristics such as large capacitance, small leakage current, good stability, high reliability, good voltage resistance, long life and small size; in the metallurgical industry, tantalum-niobium is mainly used as an additive to produce high-strength alloy steel, improve the properties of various alloys and make superhard tools; in addition, tantalum is also widely used in national defense, aviation, aerospace, electronic computers, high-end civilian electrical appliances and electronic circuits of various electronic instruments.
[0004] The production and manufacturing of tantalum-niobium alloy plates are almost all cold-processed, generally starting from tantalum ingots of 15 to 30 cm, cold-forged into slabs of about 5 to 10 cm thick, and then cold-rolled from such slabs, with a compression rate of more than 95%. In commercial production, slabs are usually rolled into 0.6 to 1.2 cm thick plates by two-roll mills or four-roll mills, and the width is generally 51 to 102 cm. Rolling is carried out at room temperature or near room temperature to prevent the formation of oxides on the surface. Due to the characteristics of tantalum-niobium alloy itself, a strong texture will be generated inside the rolled piece during the cold rolling process. The formation of these textures causes a great change in the strength and elongation of the tantalum-niobium alloy plate in different directions. The tensile strength is the weakest and the elongation is the strongest in the direction of the rolling angle of 45 degrees. Therefore, in order to eliminate this unfavorable factor in the production process, continuous angle rotation and oblique rolling into the roll process are usually used for rolling. In order to obtain the final rolled product with consistent performance everywhere, the angle of each pass during rolling is required to be accurately controlled, and the rolling process of each batch is required to be as similar as possible.
[0005] At present, in order to meet the above process requirements, manual marking is usually adopted in the actual production process, and then the production workers turn the corner according to the marking direction and push it into the rolling mill manually. This operation is labor-intensive, the corner precision control is not accurate, and the different operating experience of different operators also has a great impact on the final performance of the product. Summary of the invention
[0006] The present invention overcomes the shortcomings of the prior art, provides a reversible rolling mill loading and unloading mechanism suitable for rolling tantalum-niobium alloy rolled pieces, and solves the problems of high labor intensity for workers and low process control accuracy.
[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reversible rolling mill loading and unloading mechanism, comprising: a transmission component, a corner component, an inclination component and a clamping component, the inclination component is movably arranged on the transmission component, the transmission component is used to drive the inclination component to move toward or away from the reversible two-roll rolling mill, and drive the inclination component to tilt the workpiece arranged on the inclination component to tilt and input the workpiece into the reversible two-roll rolling mill, the inclination component is provided with the clamping component for clamping the workpiece, and the corner component for rotating the workpiece is arranged above the transmission component, the transmission component, corner component, inclination component and clamping component are two sets, and the two sets of the transmission component, corner component, inclination component and clamping component are arranged on both sides of the reversible two-roll rolling mill in a mirror-symmetrical manner.
[0008] The cold rolling of tantalum-niobium alloy plates requires multiple reciprocating rolling to achieve the size required by the process. Therefore, two sets of this device are mirror-imaged and distributed on both sides of the reversible two-roll mill. When the device on one side is feeding and rolling, the device on the other side is used to receive the rolled piece after rolling, and feed it into the reversible two-roll mill again after precise turning and tilting according to the process requirements. The equipment on both sides works alternately to achieve continuous rolling until the final process size.
[0009] The inclination component includes: a traveling frame, a guide box, a movable workbench, a connecting shaft 1, a pin shaft, a guide plate, a swing arm B, a small sprocket, a connecting shaft 2 and wheels. A plurality of wheels are symmetrically connected to both sides of the horizontally arranged traveling frame. The wheels are used for reciprocating transverse movement along the transmission component. The connecting shaft 1 is horizontally arranged at one end of the traveling frame close to the reversible two-roll rolling mill. The connecting shaft 1 is perpendicular to the transverse movement direction of the traveling frame. The connecting shaft 1 is fixed with the horizontally arranged guide plate. The traveling frame is fixed with the guide box matched with the guide plate. The guide plate is slidably connected with the guide box. When the movable working platform is flipped at an inclination angle, the guide box guides the forward and backward movement of the guide plate. The transverse movement direction of the guide plate is parallel to the transverse movement direction of the traveling frame. The movable workbench is hinged to the connecting shaft one at one end close to the reversible two-roll rolling mill, and a plurality of L-shaped swing arms B are arranged on the traveling frame, and the corner of the swing arm B is hinged to the middle part or a position close to the middle part of the traveling frame through the connecting shaft two, and the connecting shaft two is arranged parallel to the connecting shaft one, and the swing arm B can rotate around the connecting shaft two, and one end of the swing arm B is hinged to the movable workbench through the pin shaft, and the pin shaft is arranged parallel to the connecting shaft one, and the pin shaft is located between the connecting shaft two and the connecting shaft one, and the pin shaft can be arranged at one-fifth of the distance from the end of the movable workbench close to the reversible two-roll rolling mill, and the other end of the swing arm B is connected with the rotatable small sprocket, and the small sprocket is located below the pin shaft. By rotating the swing arm B relative to the connecting shaft 2, one end of the connecting pin of the swing arm B can be lifted up, thereby driving the movable worktable to tilt, so that the end of the movable worktable away from the reversible two-roll rolling mill is tilted, and the rolled piece set on the movable worktable is tilted and sent into the reversible two-roll rolling mill.
[0010] The transmission component includes: a passive sprocket, an oil cylinder, a transmission chain, a driving sprocket, a motor A, a chain track, a track base, a swing arm A and a transverse axis. The upper end of the track base is fixed with the horizontally arranged chain track, and the extension direction of the chain track is consistent with the transverse direction of the traveling frame. The end of the chain track away from the reversible two-roller rolling mill is connected with the axially horizontally arranged driving sprocket, and the axial direction of the driving sprocket is parallel to the axial direction of the rollers of the reversible two-roller rolling mill for rolling the rolled piece. The driving sprocket can rotate freely around its axis. The motor A is used to drive the driving sprocket to rotate. The motor A is fixed relative to the track base. The transverse axis is arranged at one end of the chain track close to the reversible two-roller rolling mill, and the transverse axis is arranged perpendicular to the transverse direction of the traveling frame. One end of the swing arm A is hinged to the chain track. The swing arm A The other end of the transverse axis is hinged with one end of the transverse axis, and the passive sprocket that cooperates with the driving sprocket is hinged on the transverse axis, and the driving sprocket is axially parallel to the passive sprocket, and the axial centers of the driving sprocket and the passive sprocket are coplanar, and the passive sprocket is coaxially connected with the transverse axis, and the passive sprocket can rotate freely around its axis center; the other end of the transverse axis is hinged with the piston rod of the oil cylinder arranged axially horizontally, and the cylinder body of the oil cylinder is hinged with the chain track, and the cylinder body of the oil cylinder is connected with the chain track through a joint bearing, and the cylinder body of the oil cylinder can swing up and down and left and right relative to the chain track, one end of the transmission chain is fixed to the end of the traveling frame away from the reversible two-roll rolling mill, and the other end of the transmission chain is fixed to the end of the traveling frame close to the reversible two-roll rolling mill after successively passing through the driving sprocket, the passive sprocket and the small sprocket.
[0011] When the transmission chain is loose, the movable working platform will flip to the horizontal position under the action of gravity. When its lower plane falls on the traveling frame, the movable working platform is in the horizontal zero-degree position. When the piston rod of the oil cylinder is extended, the transmission chain is tightened, and the transmission chain between the small sprocket and the traveling frame close to one end of the reversible two-roller rolling mill is shortened, thereby driving the swing arm B to rotate around the second connecting shaft, so that one end of the hinge pin of the swing arm B is lifted up, driving the movable workbench to tilt toward the reversible two-roller rolling mill, and driving the movable working platform to gradually flip upwards through the lever principle. By controlling the stroke of the oil cylinder, the movable working platform can be positioned and flipped within the range of zero to sixty degrees; the active chain is driven by motor A The wheel rotates forward and backward, and the transmission chain meshed with the active sprocket and the passive sprocket moves on the chain track, driving the traveling frame to move back and forth to achieve the purpose of moving the inclination component toward or away from the reversible two-roll rolling mill. The movement speed and start and stop positions of the traveling frame can be accurately controlled by regulating electrical components such as the travel switch, the encoder at the tail of the motor, and the brake. After the traveling frame moves toward the reversible two-roll rolling mill, it completes the operation of tilting and feeding to the reversible two-roll rolling mill. When the traveling frame moves away from the reversible two-roll rolling mill, the corner component works to rotate the angle of the rolled piece and adjust the position where the rolled piece enters the reversible two-roll rolling mill first, so that the rolling effect is more uniform.
[0012] The corner component includes: a fixed bracket, a motor C, a slewing bearing, a slewing beam, a pinion and a workpiece centering clamp. The fixed bracket is fixed to one side of the transmission component. The slewing bearing is arranged directly above the transmission component. The inner ring of the slewing bearing is fixed to the fixed bracket. The outer ring of the slewing bearing is fixed to the horizontally arranged slewing beam. The workpiece centering clamp for clamping the workpiece is connected below the slewing beam. The pinion is meshed with the slewing bearing and is arranged on one side of the slewing bearing. The motor C is used to drive the pinion to rotate. The motor C is fixed to the fixed bracket.
[0013] During operation, motor C starts, driving the pinion to rotate, and the pinion in turn drives the slewing bearing meshing with it to rotate. Since the inner ring of the slewing bearing is fastened to the fixed bracket by bolts, and the outer ring is connected to the slewing beam by bolts, the slewing beam will drive the workpiece centering clamp and the workpiece to rotate together. Through the control of the encoder at the tail of motor C, the workpiece can be accurately rotated to the angular position set by the process.
[0014] The clamping component includes: a base B, a cylinder, a push rod, a connecting rod, a clamping arm and a clamp, the base B is fixed to the driving slider A, the cylinder is hinged to the end of the base B away from the reversible two-roll rolling mill, the piston rod of the cylinder is hinged to the first angle of the triangular plate-shaped push rod, the second angle of the push rod is hinged to the base B, the third angle of the push rod is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the upper part of the end of the clamping arm away from the reversible two-roll rolling mill, the lower part of the end of the clamping arm away from the reversible two-roll rolling mill is hinged to the base B, the end of the clamping arm close to the connecting rod can adopt a triangular plate structure to facilitate the hinge of the clamping arm to the base B and the connecting rod, and the clamp is hinged to the end of the clamping arm close to the reversible two-roll rolling mill. The design principle of the clamping component is a four-bar mechanism. When the cylinder extends, the push rod and the connecting rod push the clamping arm to rotate counterclockwise, and the clamp starts to clamp; when the cylinder contracts, the push rod and the connecting rod drive the clamping arm to rotate clockwise, and the clamp starts to release; by controlling the reciprocating motion of the cylinder, it can achieve rapid clamping and release of materials of different thicknesses; by clamping the workpiece, it can prevent the workpiece from instantaneous deflection when the roller bites, ensuring the smooth progress of the directional rolling process of the workpiece.
[0015] A movable driving component is provided on the movable workbench to drive the clamping component to move. The movable driving component is used to drive the clamping component to move toward or away from the connecting shaft 1 so as to clamp rolled products of different sizes. The movable driving component includes: a motor B, a driving slider A and a ball screw. The ball screw is perpendicular to the connecting shaft 1 and can be rotatably arranged on the movable workbench. The ball screw is connected to the driving slider A which moves back and forth along the ball screw. The motor B is used to drive the ball screw to rotate. The motor B is fixed to the movable workbench.
[0016] The workpiece centering clamping member includes: a track seat, a motor D, a right-hand screw, a floating chuck, a right slider, a left slider and a left-hand screw. The track seat is horizontally fixed below the rotary beam, the right slider and the left slider are symmetrically slidably connected to the track seat, the left-hand screw and the right-hand screw are coaxially fixedly arranged directly below the track seat, and the left-hand screw and the right-hand screw can rotate relative to the track seat, the motor D is used to drive the left-hand screw and the right-hand screw to rotate, the motor D is fixed relative to the track seat, the left-hand screw is threadedly connected to the left slider, the right-hand screw is threadedly connected to the right slider, and the lower ends of the right slider and the left slider are both connected to floating chucks for clamping the workpiece. Through the rotation of the left-hand screw and the right-hand screw, the left-hand screw rotates in opposite directions, which will drive the right slider and the left slider to move toward or away from each other along the track seat to achieve the purpose of clamping the rolled piece. The floating chucks on both sides can adjust the angle according to the external shape of the rolled piece to clamp the rolled piece.
[0017] A horizontally arranged tongue plate is fixed on one side of the connecting shaft close to the reversible two-roll mill. The tongue plate is used to guide the workpiece into between the rollers of the reversible two-roll mill, or to receive the workpiece to ensure smooth rolling process and avoid scratching the rollers.
[0018] A traveling wheel track matched with the wheel of the traveling frame is fixed above the chain track.
[0019] The connecting ends of the left-hand screw and the right-hand screw are fixed by a middle sleeve, and the left-hand screw, the right-hand screw and the middle sleeve are connected to the track seat by a bearing seat. The middle sleeve and the bearing seat have connection and support functions.
[0020] The clamp adopts a right-angled triangular plate structure, and one end of the clamping arm close to the reversible two-roller rolling mill is hinged to the clamp at a right angle.
[0021] Compared with the prior art, the present invention has the following beneficial effects.
[0022] 1. The present invention can realize that the rolled material can be automatically and accurately rotated at a set angle in the horizontal direction before entering the roller, and can also realize that the rolled material can be automatically and accurately tilted and positioned at a set angle in the vertical direction before entering the roller, thereby realizing the process requirements of rotating the rolled material and obliquely rolling it into the roller. At the same time, through the control and recording of computer programs, the process parameter settings can be continuously optimized, and it can be ensured that the same specifications and the same batch of products adopt the same rolling process, so as to achieve consistency in the final performance of the products.
[0023] 2. The overall mechanism of the present invention is light and convenient. The two actions of left and right movement and tilt angle are completed by a chain mechanism. The power source motor and the oil cylinder are installed on a fixed track base. The structure is simple and easy to operate and control.
[0024] 3. The clamping action of the clamping component of the present invention is flexible, rapid and reliable, and is particularly suitable for the process requirements of structural safety, flexible action and reliable process required by the rolling process.
[0025] 4. The corner component of the present invention adopts the method of centering clamping and 360-degree rotation, which is suitable for the requirement of constantly changing size of rolled pieces during clamping and rolling. Its floating chuck can also adjust the angle automatically according to the external shape of the clamped object for clamping, and the clamping method is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] Figure 1 It is a structural schematic diagram of the loading and unloading mechanism of the reversible rolling mill of the present invention.
[0028] Figure 2 It is a top view of the loading and unloading mechanism of the reversible rolling mill of the present invention.
[0029] Figure 3 It is a cross-sectional view along the AA direction of the loading and unloading mechanism of the reversible rolling mill of the present invention.
[0030] Figure 4 It is a left view of the loading and unloading mechanism of the reversible rolling mill of the present invention.
[0031] Figure 5 The structure of the transmission component of the present invention is shown in FIG. Figure 1 .
[0032] Figure 6 The structure of the transmission component of the present invention is shown in FIG. Figure 2 .
[0033] Figure 7 It is a top view of the transmission component of the present invention.
[0034] Figure 8 It is a BB direction cross-sectional view of the transmission component of the present invention.
[0035] Fig. 9 It is a schematic structural diagram of the clamping component of the present invention.
[0036] Fig.10 The structure of the tilt component of the present invention is shown in FIG. Figure 1 .
[0037] Fig.11 The structure of the tilt component of the present invention is shown in FIG. Figure 2 .
[0038] Fig.12 It is a front view of the inclination component of the present invention.
[0039] Fig.13 It is a top view of the tilt angle component of the present invention.
[0040] Fig.14 It is a cross-sectional view of the tilt angle component of the present invention in the CC direction.
[0041] Fig.15 The structure of the corner component of the present invention is schematically shown in FIG. Figure 1 .
[0042] Fig.16 The structure of the corner component of the present invention is schematically shown in FIG. Figure 2 .
[0043] Fig.17 It is a front view of the corner component of the present invention.
[0044] Fig.18 It is a top view of the corner component of the present invention.
[0045] Fig.19 It is a left side view of the corner component of the present invention.
[0046] In the figure: 1 is a transmission component, 101 is a passive sprocket, 102 is an oil cylinder, 103 is a small sprocket, 104 is a transmission chain, 105 is a walking wheel track, 106 is a driving sprocket, 107 is a motor A, 108 is a chain track, 109 is a track base, 110 is a swing arm A, 111 is a horizontal axis, 2 is a corner component, 201 is a fixed bracket, 202 is a motor C, 203 is a slewing bearing, 204 is a track seat, 205 is a motor D, 206 is a right-hand screw, 207 is a floating chuck, 208 is a right slider, 209 is an intermediate sleeve, 210 is a bearing seat, 2 11 is a left slider, 212 is a left-handed screw, 213 is a rotary beam, 3 is an inclination component, 301 is a traveling frame, 302 is a guide box, 303 is a motor B, 304 is a movable workbench, 305 is a slider A, 306 is a ball screw, 307 is a tongue plate, 308 is a connecting shaft one, 309 is a pin shaft, 310 is a guide plate, 311 is a swing arm B, 312 is a connecting shaft two, 313 is a wheel, 4 is a clamping component, 401 is a base B, 402 is a cylinder, 403 is a push rod, 404 is a connecting rod, 405 is a clamping arm, 406 is a clamp, and 5 is a reversible two-roll mill. DETAILED DESCRIPTION
[0047] The following is a further description with reference to specific embodiments.
[0048] The loading and unloading mechanism of a reversible rolling mill comprises: a transmission component 1, a corner component 2, an inclination component 3 and a clamping component 4, wherein the inclination component 3 is movably arranged on the transmission component 1, and the transmission component 1 is used to drive the inclination component 3 to move toward or away from the reversible two-roll rolling mill 5, and drive the inclination component 3 to tilt and tilt the workpiece arranged on the inclination component 3 to input the workpiece into the reversible two-roll rolling mill 5, and the clamping component 4 for clamping the workpiece is arranged on the inclination component 3, and the corner component 2 for rotating the workpiece is arranged above the transmission component 1, and the transmission component 1, the corner component 2, the inclination component 3 and the clamping component 4 are two sets, and the two sets of the transmission component 1, the corner component 2, the inclination component 3 and the clamping component 4 are arranged on both sides of the reversible two-roll rolling mill 5 in a mirror-symmetrical manner.
[0049] The cold rolling of tantalum-niobium alloy plates requires multiple reciprocating rolling to achieve the size required by the process. Therefore, two sets of this device are mirror-imaged and distributed on both sides of the reversible two-roll mill. When the device on one side is feeding and rolling, the device on the other side is used to receive the rolled piece after rolling, and feed it into the reversible two-roll mill again after precise turning and tilting according to the process requirements. The equipment on both sides works alternately to achieve continuous rolling until the final process size.
[0050] The inclination component 3 includes: a walking frame 301, a guide box 302, a movable workbench 304, a connecting shaft 1 308, a pin 309, a guide plate 310, a swing arm B311, a small sprocket 103, a connecting shaft 2 312 and a wheel 313. The two sides of the horizontally arranged walking frame 301 are symmetrically connected with a plurality of the wheels 313, and the wheels 313 are used for reciprocating transverse movement along the transmission component 1. The connecting shaft 1 308 is horizontally arranged at one end of the walking frame 301 close to the reversible two-roller rolling mill 5. The connecting shaft 1 308 is connected to the The lateral movement direction of the traveling frame 301 is vertically arranged, the guide plate 310 arranged horizontally is fixed on the connecting shaft 1, the guide box 302 matched with the guide plate 310 is fixed on the traveling frame 301, the guide plate 310 is slidably connected with the guide box 302, when the movable working platform 304 is tilted, the guide box 302 guides the forward and backward movement of the guide plate 310, the lateral movement direction of the guide plate 310 is parallel to the lateral movement direction of the traveling frame 301, the movable working platform 304 is close to the reversible second One end of the rolling mill 5 is hinged to the connecting shaft 1 308, and the traveling frame 301 is provided with a plurality of L-shaped swing arms B311, and two swing arms B311 can be provided, and the two swing arms B311 are symmetrically arranged on both sides of the movable workbench 304, and the corner of the swing arm B311 is hinged to the middle or near the middle of the traveling frame 301 through the connecting shaft 2 312, and the connecting shaft 2 312 is arranged parallel to the connecting shaft 1 308, and the swing arm B311 can be around the connecting shaft 2 312 rotates, one end of the swing arm B311 is hinged with the movable workbench 304 through the pin 309, the pin 309 is arranged in parallel with the connecting shaft 1 308, and the pin 309 is located between the connecting shaft 2 312 and the connecting shaft 1 308, the pin 309 can be arranged at one fifth of the distance from the end of the movable workbench 304 close to the reversible two-roll mill 5, the other end of the swing arm B311 is connected with the rotatable small sprocket 103, and the small sprocket 103 is located below the pin 309. Through the rotation of the swing arm B311 relative to the connecting shaft 2 312, one end of the swing arm B311 connected to the pin 309 can be lifted up, thereby driving the movable workbench 304 to tilt, so that the end of the movable workbench 304 away from the reversible two-roll mill 5 is tilted, and the rolled piece arranged on the movable workbench 304 is tilted and sent into the reversible two-roll mill 5.
[0051] The transmission component 1 includes: a passive sprocket 101, an oil cylinder 102, a transmission chain 104, a driving sprocket 106, a motor A107, a chain track 108, a track base 109, a swing arm A110 and a transverse axis 111. The upper end of the track base 109 is fixed with the horizontally arranged chain track 108, and the extension direction of the chain track 108 is consistent with the transverse movement direction of the traveling frame 301. The end of the chain track 108 away from the reversible two-roller rolling mill 5 is connected with the axially horizontally arranged driving sprocket 106. The axial direction of the sprocket 106 is parallel to the axial direction of the rollers of the reversible two-roller rolling mill 5 for rolling the rolled piece. The driving sprocket 106 can rotate freely around its axis. The motor A107 is used to drive the driving sprocket 106 to rotate. The motor A107 is fixed relative to the track base 109. The chain track 108 is provided with the transverse axis 111 at one end close to the reversible two-roller rolling mill 5. The transverse axis 111 is perpendicular to the transverse direction of the traveling frame 301. One end of the swing arm A110 is hinged to the chain track 108. The swing arm The other end of A110 is hinged to one end of the transverse axis 111, and the passive sprocket 101 cooperating with the active sprocket 106 is hinged on the transverse axis 111. The active sprocket 106 is axially parallel to the passive sprocket 101, and the axial centers of the active sprocket 106 and the passive sprocket 101 are coplanar. The passive sprocket 101 is coaxially connected to the transverse axis 111, and the passive sprocket 101 can rotate freely around its axis. The other end of the transverse axis 111 is hinged to the piston rod of the oil cylinder 102 which is axially horizontally arranged. The cylinder body of the oil cylinder 102 is hinged to the chain track 108, and the cylinder body of the oil cylinder 102 is connected to the chain track 108 through a joint bearing. The cylinder body of the oil cylinder 102 can swing up and down and left and right relative to the chain track 108. One end of the transmission chain 104 is fixed to the end of the traveling frame 301 away from the reversible two-roll rolling mill 5, and the other end of the transmission chain 104 is fixed to the end of the traveling frame 301 close to the reversible two-roll rolling mill 5 after passing through the driving sprocket 106, the driven sprocket 101, and the small sprocket 103 in turn.
[0052] When the transmission chain 104 is relaxed, the movable working platform 304 will flip to the horizontal position under the action of gravity. When its lower plane falls on the traveling frame 301, the movable working platform 304 is in the horizontal zero position. When the piston rod of the oil cylinder 102 is extended, the transmission chain 104 is tightened, and the transmission chain 104 between the small sprocket 103 and the traveling frame 301 close to one end of the reversible two-roller rolling mill 5 is shortened, thereby driving the swing arm B311 to rotate around the connecting shaft 2 312, so that one end of the hinge pin 309 of the swing arm B311 is lifted up, driving the movable workbench 304 to tilt toward the reversible two-roller rolling mill 5, and driving the movable working platform 304 to gradually flip upwards through the lever principle. By controlling the stroke of the oil cylinder 102, the movable working platform 304 can be positioned and flipped within the range of zero to sixty degrees. The motor A107 drives the driving sprocket 106 to rotate forward and reversely, and the transmission chain 104 meshing with the driving sprocket 106 and the passive sprocket 101 moves on the chain track 108, driving the traveling frame 301 to move back and forth to achieve the purpose of moving the inclination component 3 toward or away from the reversible two-roll rolling mill 5. The movement speed and start and stop positions of the traveling frame 301 can be accurately controlled by adjusting the travel switch, the encoder at the tail of the motor, the brake and other electrical components. After the traveling frame 301 moves toward the reversible two-roll rolling mill 5, it completes the operation of tilting and feeding to the reversible two-roll rolling mill 5. When the traveling frame 301 moves away from the reversible two-roll rolling mill 5, the corner component 2 works to rotate the angle of the rolled piece and adjust the position where the rolled piece enters the reversible two-roll rolling mill 5 first, so that the rolling effect is more uniform.
[0053] The corner component 2 includes: a fixed bracket 201, a motor C202, a slewing bearing 203, a slewing beam 213, a pinion and a workpiece centering clamp. The fixed bracket 201 is fixed to one side of the transmission component 1, and the slewing bearing 203 is arranged directly above the transmission component 1. The inner ring of the slewing bearing 203 is fixed to the fixed bracket 201, and the outer ring of the slewing bearing 203 is fixed to the horizontally arranged slewing beam 213. The workpiece centering clamp for clamping the workpiece is connected below the slewing beam 213. The pinion is meshed with the slewing bearing 203 and is arranged on one side of the slewing bearing 203. The motor C202 is used to drive the pinion to rotate, and the motor C202 is fixed to the fixed bracket 201.
[0054] During operation, the motor C202 starts, driving the pinion to rotate, and the pinion then drives the slewing bearing 203 meshing with it to rotate. Since the inner ring of the slewing bearing 203 is fastened to the fixed bracket 201 by bolts, and the outer ring is connected to the slewing beam 213 by bolts, the slewing beam 213 will drive the workpiece centering clamp and the workpiece to rotate together. Through the control of the encoder at the tail of the motor C202, the workpiece can be accurately rotated to the angular position set by the process.
[0055] The clamping component 4 includes: a base B401, a cylinder 402, a push rod 403, a connecting rod 404, a clamping arm 405 and a clamp 406, the base B401 is fixed to the driving slider A305, the end of the base B401 away from the reversible two-roll mill 5 is hinged with the cylinder 402, the piston rod of the cylinder 402 is hinged to the first corner of the triangular plate-shaped push rod 403, the second corner of the push rod 403 is hinged to the base B401, and the third corner of the push rod 403 is hinged to the One end of the connecting rod 404 is hinged, and the other end of the connecting rod 404 is hinged to the upper part of the end of the clamping arm 405 away from the reversible two-roll rolling mill 5, and the lower part of the end of the clamping arm 405 away from the reversible two-roll rolling mill 5 is hinged to the base B401. The end of the clamping arm 405 close to the connecting rod 404 can adopt a triangular plate structure to facilitate the hinge of the clamping arm 405 with the base B401 and the connecting rod 404. The clamp 406 is hinged to the end of the clamping arm 405 close to the reversible two-roll rolling mill 5. The design principle of the clamping component 4 is a four-bar linkage. When the cylinder 402 extends, the push rod 403 and the connecting rod 404 push the clamping arm 405 to rotate counterclockwise, and the clamp 406 starts the clamping action; when the cylinder 402 contracts, the push rod 403 and the connecting rod 404 drive the clamping arm 405 to rotate clockwise, and the clamp 406 starts the loosening action; by controlling the reciprocating action of the cylinder 402, the materials of different thicknesses can be clamped and loosened quickly; by clamping the workpiece, the workpiece can be prevented from instantaneous deflection when the roller bites, ensuring the smooth progress of the directional rolling process of the workpiece.
[0056] The movable workbench 304 is provided with a movable driving component for driving the clamping component 4 to move. The movable driving component is used to drive the clamping component 4 to move toward or away from the connecting shaft 308 so as to clamp rolled products of different sizes. The movable driving component includes: a motor B303, a driving slider A305 and a ball screw 306. The ball screw 306 is perpendicular to the connecting shaft 308 and can rotate on the movable workbench 304. The ball screw 306 is connected to the driving slider A305 which reciprocates along the ball screw 306. The motor B303 is used to drive the ball screw 306 to rotate. The motor B303 is fixed to the movable workbench 304.
[0057] The workpiece centering clamping member comprises: a track seat 204, a motor D205, a right-hand screw 206, a floating chuck 207, a right slider 208, a left slider 211 and a left-hand screw 212. The track seat 204 is fixed horizontally below the rotary beam 213. The right slider 208 and the left slider 211 are symmetrically slidably connected to the track seat 204. The left-hand screw 212 is coaxially fixed with the right-hand screw 206 and is arranged directly below the track seat 204. The lead screw 212 and the right-hand lead screw 206 can rotate relative to the track seat 204, and the motor D205 is used to drive the left-hand lead screw 212 and the right-hand lead screw 206 to rotate. The motor D205 is fixed relative to the track seat 204, and the left-hand lead screw 212 is threadedly connected to the left slider 211, and the right-hand lead screw 206 is threadedly connected to the right slider 208. The lower ends of the right slider 208 and the left slider 211 are both connected with floating chucks 207 for clamping the rolled piece. Through the rotation of the left-hand lead screw 212 and the right-hand lead screw 206, the left-hand lead screw 212 and the right-hand lead screw 206 rotate in opposite directions, which will drive the right slider 208 and the left slider 211 to move toward or away from each other along the track seat 204 to achieve the purpose of clamping the rolled piece. The floating chucks 207 on both sides can adjust the angle according to the external shape of the rolled piece to clamp the rolled piece.
[0058] A horizontally arranged tongue plate 307 is fixed to one side of the connecting shaft 308 close to the reversible two-roll mill 5. The tongue plate 307 is used to guide the workpiece to enter between the rollers of the reversible two-roll mill 5, or to receive the workpiece to ensure smooth rolling process and avoid scratching the rollers.
[0059] A traveling wheel track 105 that matches the wheel 313 of the traveling frame 301 is fixed above the chain track 108 .
[0060] The connecting end of the left-hand screw 212 and the right-hand screw 206 is fixed by a middle sleeve 209, and the left-hand screw 212, the right-hand screw 206 and the middle sleeve 209 are connected to the track seat 204 by a bearing seat 210. The middle sleeve 209 and the bearing seat 210 have a connecting and supporting function.
[0061] The clamp 406 is a right-angled triangular plate structure, and one end of the clamp arm 405 close to the reversible two-roller rolling mill 5 is hinged to the clamp 406 at a right angle.
[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Those familiar with the technology may modify or improve the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. Reversible rolling mill loading and unloading mechanism, characterized in that: include: A transmission component (1), a corner component (2), an inclination component (3) and a clamping component (4), wherein the inclination component (3) is movably arranged on the transmission component (1), and the transmission component (1) is used to drive the inclination component (3) to move in a direction close to or away from the reversible two-roll mill (5), and drive the inclination component (3) to tilt so that a rolled piece arranged on the inclination component (3) is tilted and input into the reversible two-roll mill (5), the inclination component (3) is provided with the clamping component (4) for clamping the rolled piece, and the corner component (2) for rotating the rolled piece is arranged above the transmission component (1), and the transmission component (1), the corner component (2), the inclination component (3) and the clamping component (4) are two sets, and the two sets of the transmission component (1), the corner component (2), the inclination component (3) and the clamping component (4) are arranged on both sides of the reversible two-roll mill (5) in a mirror-symmetrical manner; The tilt component (3) comprises: a traveling frame (301), a guide box (302), a movable workbench (304), a connecting shaft 1 (308), a pin shaft (309), a guide plate (310), a swing arm B (311), a small sprocket (103), a connecting shaft 2 (312) and wheels (313), wherein a plurality of wheels (313) are symmetrically connected to two sides of the horizontally arranged traveling frame (301), and the wheels (313) are used to move along the transmission component (1). The traveling frame (301) is horizontally provided with the connecting shaft 1 (308) at one end close to the reversible two-roller rolling mill (5), the connecting shaft 1 (308) is arranged perpendicular to the lateral movement direction of the traveling frame (301), the connecting shaft 1 is fixed with the horizontally arranged guide plate (310), the traveling frame (301) is fixed with the guide box (302) matched with the guide plate (310), the guide plate (310) and the guide box (302) are connected to each other. The movable workbench (304) is slidably connected to the traveling frame (301), the lateral movement direction of the guide plate (310) is parallel to the lateral movement direction of the traveling frame (301), one end of the movable workbench (304) close to the reversible two-roller rolling mill (5) is hinged to the connecting shaft 1 (308), a plurality of L-shaped swing arms B (311) are provided on the traveling frame (301), the corners of the swing arms B (311) are hinged to the traveling frame (301) via the connecting shaft 2 (312), and the The second connecting shaft (312) is arranged in parallel with the first connecting shaft (308); one end of the swing arm B (311) is hinged to the movable workbench (304) via the pin shaft (309); the pin shaft (309) is arranged in parallel with the first connecting shaft (308), and the pin shaft (309) is located between the second connecting shaft (312) and the first connecting shaft (308); the other end of the swing arm B (311) is connected to the rotatable small sprocket (103); The transmission component (1) comprises: a passive sprocket (101), an oil cylinder (102), a transmission chain (104), a driving sprocket (106), a motor A (107), a chain track (108), a track base (109), a swing arm A (110) and a transverse axis (111); the chain track (108) arranged horizontally is fixed at the upper end of the track base (109); the end of the chain track (108) facing away from the reversible two-roller rolling mill (5) is connected to the driving sprocket (106) arranged axially and horizontally; the motor A (107) is used to drive the driving sprocket (106) to rotate; the motor A (107) is fixed relative to the track base (109); the transverse axis (111) is arranged at the end of the chain track (108) close to the reversible two-roller rolling mill (5); the transverse axis (111) is transversely connected to the traveling frame (301) The swing arm A (110) is arranged vertically in the shifting direction, one end of the swing arm A (110) is hinged to the chain track (108), the other end of the swing arm A (110) is hinged to one end of the transverse axis (111), the passive sprocket (101) cooperating with the active sprocket (106) is hinged on the transverse axis (111), the other end of the transverse axis (111) is hinged to the piston rod of the oil cylinder (102) arranged axially horizontally, the cylinder body of the oil cylinder (102) is hinged to the chain track (108), one end of the transmission chain (104) is fixed to one end of the traveling frame (301) away from the reversible two-roller rolling mill (5), and the other end of the transmission chain (104) is fixed to one end of the traveling frame (301) close to the reversible two-roller rolling mill (5) after passing through the active sprocket (106), the passive sprocket (101) and the small sprocket (103) in sequence; The corner component (2) comprises: a fixed bracket (201), a motor C (202), a slewing bearing (203), a slewing beam (213), a pinion and a workpiece centering clamping member, wherein the fixed bracket (201) is fixed to one side of the transmission component (1), the slewing bearing (203) is arranged directly above the transmission component (1), the inner ring of the slewing bearing (203) is fixed to the fixed bracket (201), the outer ring of the slewing bearing (203) is fixed to the horizontally arranged slewing beam (213), the workpiece centering clamping member for clamping the workpiece is connected below the slewing beam (213), the pinion is meshed with the slewing bearing (203) and is arranged on one side of the slewing bearing (203), the motor C (202) is used to drive the pinion to rotate, and the motor C (202) is fixed to the fixed bracket (201).
2. The reversible rolling mill loading and unloading mechanism according to claim 1 is characterized in that: The clamping component (4) comprises: a base B (401), a cylinder (402), a push rod (403), a connecting rod (404), a clamping arm (405) and a clamp (406); the base B (401) is fixed to a driving slider A (305); an end of the base B (401) facing away from the reversible two-roller rolling mill (5) is hinged to the cylinder (402); a piston rod of the cylinder (402) is hinged to a first corner of the triangular plate-shaped push rod (403); a second corner of the push rod (403) is hinged to the base B (401); a third corner of the push rod (403) is hinged to the connecting rod (404); The connecting rod (404) is hinged at one end thereof, the other end thereof is hinged to the upper portion of the end of the clamping arm (405) away from the reversible two-roller rolling mill (5), the lower portion of the end of the clamping arm (405) away from the reversible two-roller rolling mill (5) is hinged to the base B (401), and the clamp (406) is hinged to the end of the clamping arm (405) close to the reversible two-roller rolling mill (5).
3. The reversible rolling mill loading and unloading mechanism according to claim 2 is characterized in that: The movable workbench (304) is provided with a movable driving member for driving the clamping component (4) to move, and the movable driving member is used to drive the clamping component (4) to move in a direction close to or away from the connecting shaft (308). The movable driving member comprises: a motor B (303), a driving slider A (305) and a ball screw (306). The ball screw (306) is vertically arranged on the connecting shaft (308) and can rotate on the movable workbench (304). The ball screw (306) is connected to the driving slider A (305) which moves back and forth along the ball screw (306). The motor B (303) is used to drive the ball screw (306) to rotate. The motor B (303) is fixed to the movable workbench (304).
4. The reversible rolling mill loading and unloading mechanism according to claim 1 is characterized in that: The workpiece centering clamping member comprises: a track seat (204), a motor D (205), a right-hand screw (206), a floating chuck (207), a right slider (208), a left slider (211) and a left-hand screw (212); the track seat (204) is horizontally fixed below the rotary beam (213); the right slider (208) and the left slider (211) are symmetrically slidably connected to the track seat (204); the left-hand screw (212) and the right-hand screw (206) are coaxially fixedly arranged directly below the track seat (204); and the left-hand screw (212) is coaxially fixedly arranged with the right-hand screw (206) and the left-hand screw (212) is fixedly mounted on the track seat (204). The lead screw (212) and the right-hand lead screw (206) can rotate relative to the track seat (204); the motor D (205) is used to drive the left-hand lead screw (212) and the right-hand lead screw (206) to rotate; the motor D (205) is fixed relative to the track seat (204); the left-hand lead screw (212) is threadedly connected to the left slider (211); the right-hand lead screw (206) is threadedly connected to the right slider (208); and the lower ends of the right slider (208) and the left slider (211) are both connected to floating chucks (207) for clamping rolled pieces.
5. The reversible rolling mill loading and unloading mechanism according to claim 1 is characterized in that: A horizontally arranged tongue plate (307) is fixed to one side of the connecting shaft 1 (308) close to the reversible two-roller rolling mill (5).
6. The reversible rolling mill loading and unloading mechanism according to claim 1, characterized in that: A traveling wheel track (105) matched with the wheel (313) of the traveling frame (301) is fixed above the chain track (108).
7. The reversible rolling mill loading and unloading mechanism according to claim 4 is characterized in that: The connecting ends of the left-handed lead screw (212) and the right-handed lead screw (206) are fixed via a middle sleeve (209), and the left-handed lead screw (212), the right-handed lead screw (206) and the middle sleeve (209) are connected to the track seat (204) via a bearing seat (210).