An engineering circle machine

Abstract

The present invention provides an engineering wheel rounding machine, comprising a bed, a main roller, a first roller, and a second roller; the main roller is rotatably and liftably arranged on the bed, and is used to adapt to the rounding of plates of different thicknesses; the first roller and the second roller have different outer diameters, and the first roller and the second roller are horizontally movable on the bed, and are used to round out workpieces of different diameters. By using a main roller that can be raised and lowered vertically and a first roller and a second roller that can be adjusted horizontally left and right, a single device can process engineering wheel rims and agricultural machinery wheel rims of different thicknesses and diameters without changing rollers; the feeding mechanism and the unloading mechanism solve the problems of time-consuming and labor-intensive loading due to heavy weight and difficulty in unloading due to the large diameter of the rounded workpiece, thereby achieving automatic loading and unloading; the structure is simple and production efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of engineering wheel rim processing, in particular to an engineering wheel rim rounding machine. Background Art

[0002] Currently, conventional wheel rounding machines used in rim production lines are suitable for processing smaller vehicle rims, but struggle to meet the demands of larger diameter rims for construction or agricultural machinery. Furthermore, when the product is thick and wide, the rounding process is difficult to complete in one go, resulting in low production efficiency. Furthermore, with the continuous development of construction and agricultural machinery, the demand for rims of varying specifications is also increasing. Therefore, how to achieve the goal of processing engineering rims of varying diameters with a single machine has become a pressing issue. Summary of the Invention

[0003] The object of the present invention is to provide an engineering circle machine to solve at least one of the above-mentioned technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention provides an engineering rounding machine, comprising: a bed, a main roller, a first round roller and a second round roller;

[0005] The main roller is rotatably and liftably arranged on the bed, and is used to adapt to the rounding of plates of different thicknesses;

[0006] The outer diameters of the first and second circular rollers are different, and the first and second circular rollers are horizontally movably arranged on the bed to circle workpieces with different diameters.

[0007] For simplicity, the circular roller closest to the sheet feed inlet is defined as the first circular roller, and the circular roller farther from the sheet feed inlet is defined as the second circular roller. The outer diameter of the second circular roller is larger than that of the first circular roller. When adjusting the sheet thickness, the height of the main roller is adjusted while simultaneously translating the first and second circular rollers so that their outer circles are tangent to the same circumference of the main roller, thus achieving sheet rounding.

[0008] Furthermore, it also includes a main shaft coaxially arranged with the main roller, and the main roller is fixedly sleeved on the middle front part of the main shaft;

[0009] At least two first slides are spaced apart at the middle and rear portion of the main shaft;

[0010] The main shaft is rotatably inserted into the first slide;

[0011] The first slide is movably arranged on the bed.

[0012] Thus, the main roller and the main shaft are arranged on the bed in a liftable manner via the first slide.

[0013] Furthermore, a first guide structure is provided between the first slide and the bed for limiting and guiding the first slide when it is raised or lowered.

[0014] The first guide structure can be in many forms, for example, it includes a lifting slide groove provided on the bed, and the first slide can be slid up and down in the slide groove; or, guide grooves are provided on both sides of the first slide, and guide blocks or guide rails adapted to the guide grooves are provided on the bed.

[0015] Furthermore, it also includes a first actuator for forcing the main roller to rise and fall;

[0016] The first actuator includes a transmission nut and a first transmission screw in threaded transmission cooperation; the first transmission screw is relatively fixedly and vertically arranged on the bed;

[0017] In the axial direction of the first transmission screw, the transmission nut and the first slide are relatively fixedly arranged. In the circumferential direction of the first transmission screw, the transmission nut and the first slide are relatively rotatably arranged.

[0018] By rotating the transmission nut, the first slide is forced to move up and down by means of the threaded transmission pair between the transmission nut and the first transmission screw.

[0019] Furthermore, the first actuators are arranged in a one-to-one correspondence with the first slides; a linkage structure is provided between the first actuators on two adjacent first slides, for realizing parallel lifting and lowering of the main shaft and the main roller.

[0020] Furthermore, the linkage structure includes a worm gear transmission pair and a first intermediate connecting shaft; the worm gear transmission pair includes a worm rotatably arranged on the first slide, and the worm is arranged parallel to the main shaft; the outer circle of the transmission nut is provided with a helical gear structure adapted to the worm;

[0021] The two worms on two adjacent first slides are connected via the first intermediate connecting shaft.

[0022] The worm gear transmission pair and the first intermediate connecting shaft realize the synchronous action between all the first actuators and the synchronous lifting and lowering of all the first slides, thereby realizing the parallel lifting and lowering of the main roller and the main shaft.

[0023] At the same time, several front and rear worms are connected by the first intermediate connecting shaft to realize a chain structure. Unless there is a large external force, it is difficult to rotate the worm. The worm gear structure has a self-locking function, and the transmission nut can only be driven to rotate by rotating the worm, thereby realizing the locking of all the first slides and ensuring the axial circular accuracy of the plate body when circling.

[0024] Preferably, one end or both ends of at least one of the worms are provided with a clamping portion for facilitating clamping with a wrench.

[0025] The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating with tools such as wrenches.

[0026] Furthermore, it also includes a first locking nut, which is sleeved on the first transmission screw and is used to lock and fix the transmission nut.

[0027] When adjustment is needed, loosen the first locking nut in advance, rotate the worm with a wrench or other tools, and all the transmission nuts rotate synchronously to achieve parallel lifting and lowering of the main roller. After the adjustment is completed, rotate the first locking nut so that the first locking nut is close to the transmission nut, thereby locking the transmission nut.

[0028] Furthermore, a second circle roller shaft is coaxially arranged inside the second circle roller, and the second circle roller is fixedly sleeved on the second circle roller shaft;

[0029] The first circle roller and the second circle roller shaft are rotatably arranged on the second slide;

[0030] The second slide seat can be horizontally slidably arranged on the bed.

[0031] Thus, the first circle of round rollers and the second circle of round rollers are arranged on the bed so as to be movable horizontally left and right through the second slide.

[0032] Furthermore, a second guide structure is provided between the second slide and the bed for limiting and guiding the second slide when it moves horizontally left and right.

[0033] The second guide structure includes a horizontal guide groove provided on the bed or the second slide, and a guide block or guide rail provided on the second slide or the bed and adapted to the horizontal guide groove.

[0034] Furthermore, it also includes a second actuator for forcing the first and second circular rollers to move horizontally left and right;

[0035] The second actuator includes a plurality of horizontally arranged second transmission screws; the second transmission screws are threadedly connected to the fixed block through a threaded transmission pair;

[0036] The fixing block is firmly connected to the bed;

[0037] The fixing block is provided with a threaded hole adapted to the second transmission screw;

[0038] A plurality of second transmission screw rods are symmetrically arranged on both sides of the second slide seat, and one end of the second screw rod passes through the fixing block and abuts against the bottom plate of the second slide seat.

[0039] Furthermore, a clamping portion for facilitating clamping with a wrench is provided on one end of the second transmission screw away from the second slide seat.

[0040] The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating with tools such as wrenches.

[0041] Furthermore, it also includes a fastening bolt, which is used to fasten the moved second slide seat to the bed.

[0042] When the first and second circles of rollers move to the left, the diameter of the workpiece after being circled becomes larger; when the first and second circles of rollers move to the right, the diameter of the workpiece after being circled becomes smaller.

[0043] When adjustment is needed, first loosen the fastening bolts; when the first circle round roller and the second circle round roller are adjusted to the left, use a wrench to turn the second transmission screw on the left side of the second slide to move it away from the second slide, and then use a wrench to turn the second transmission screw on the right side of the second slide to push the second slide to move to the left, thereby driving the first circle round roller and the second circle round roller to move to the left at the same time; similarly, when the first circle round roller and the second circle round roller are adjusted to the right, use a wrench to turn the second transmission screw on the right side of the second slide to move it away from the second slide, and then use a wrench to turn the second transmission screw on the left side of the second slide to push the second slide to move to the right, thereby driving the first circle round roller and the second circle round roller to move to the right at the same time; after the adjustment is completed, tighten the second slide with the fastening bolts.

[0044] Preferably, it further comprises a feeding mechanism, wherein the feeding mechanism comprises an upper feeding roller and a lower feeding roller arranged vertically;

[0045] The upper feeding roller and the lower feeding roller are rotatably arranged on the feeding roller mounting seat, and the vertical gap is adjustable, and are used to clamp plates of different thicknesses and send them to the first circle of round rollers;

[0046] The feeding roller mounting seat is fixedly arranged on the bed.

[0047] Furthermore, a lower feeding roller shaft is coaxially arranged in the lower feeding roller, and the lower feeding roller is fixedly sleeved on the lower feeding roller shaft;

[0048] The lower feeding roller shaft is rotatably arranged on the feeding roller mounting seat;

[0049] A third slide is provided at both ends of the lower feeding roller shaft;

[0050] The third slide is movably mounted on the feeding roller mounting seat.

[0051] Thus, the upper feeding roller can be lifted and lowered on the feeding roller mounting seat through the third slide.

[0052] Furthermore, a third guide structure is provided between the third slide and the feeding roller mounting seat for limiting and guiding the third slide when it is raised or lowered.

[0053] The third guide structure has many forms. For example, it includes a lifting slide groove provided on the feeding roller mounting seat, and the third slide can be slid up and down in the slide groove; or, guide grooves are provided on both sides of the third slide, and the feeding roller mounting seat is provided with a guide block or guide rail adapted to the guide groove.

[0054] Furthermore, it also includes a third actuator for forcing the upper feeding roller to rise and fall;

[0055] The third actuator includes a third transmission screw vertically arranged on the upper portion of the feeding roller mounting seat, and the third transmission screw is connected to the upper portion of the feeding roller mounting seat through a thread;

[0056] The third transmission screw passes through the top of the feeding roller mounting seat and is fixedly connected downward to the third slide seat;

[0057] A threaded hole that cooperates with the third transmission screw is provided on the upper portion of the feeding roller mounting seat.

[0058] The third transmission screw is rotated to force the upper feeding roller to move up and down through the thread transmission between the third transmission screw and the top of the feeding roller mounting seat.

[0059] Preferably, the end of the third transmission screw away from the third slide is provided with a clamping portion for clamping with a wrench. The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating with a tool such as a wrench.

[0060] Furthermore, it also includes a second locking nut, which is sleeved on the third transmission screw and rotatably arranged on the top of the feeding roller mounting seat for locking and fixing the third transmission screw.

[0061] When adjustment is needed, loosen the second locking nut in advance, rotate the third transmission screw with a wrench or other tools, and use the threaded transmission between the feeding roller mounting seat and the third transmission screw to force the third slide to rise and fall, thereby adjusting the gap between the upper feeding roller and the lower feeding roller to meet the clamping and conveying of workpieces of different thicknesses.

[0062] Furthermore, it also includes a turning support mechanism, which is arranged at the front part of the bed and includes a turning plate and a turning support seat;

[0063] The flip support seat is fixedly arranged on the front part of the bed;

[0064] The flip plate is pivotally connected to the upper portion of the flip support seat via a rotating shaft;

[0065] The flip plate is provided with a support hole adapted to the main shaft, for supporting the front end of the main shaft when the main shaft is upright.

[0066] Furthermore, it also includes a first telescopic mechanism for forcing the flip plate to rotate around the rotation axis;

[0067] The body of the first telescopic mechanism is pivotally connected to the bottom of the bed, and the telescopic end of the first telescopic mechanism is pivotally connected to a rotating arm;

[0068] The other end of the rotating arm is pivotally connected to the flip plate.

[0069] Therefore, when the protruding end of the first telescopic mechanism is extended, the flip plate is forced to rotate to a vertical position, thereby providing support for the front end of the main shaft, solving the problem of uneven force on the front end of the main shaft due to the cantilever, which is prone to bending and deformation during the circle process, resulting in different distances between the front and rear ends of the main roller and the second circle roller, causing misalignment in the workpiece after circled, affecting subsequent processing; when the protruding end of the first telescopic mechanism is retracted, the flip plate is forced to rotate to a horizontal position, thereby releasing the support for the main shaft, making it easier for the workpiece after circled to leave the circle area and complete unloading.

[0070] Preferably, it further comprises a lift for forcing the flip plate to rise and fall vertically;

[0071] The elevators are arranged horizontally in two pieces and are fixed on the bed through elevator mounting bases;

[0072] The output end of the elevator is fixedly connected to the bottom of the flip support seat, and the input ends of the elevator are connected through a second intermediate connecting shaft.

[0073] The second intermediate connecting shaft realizes the synchronous lifting and lowering of the output end of the elevator.

[0074] The lifter forces the flip plate to move vertically upward and downward, coordinating with the lifting and lowering of the main shaft, so that the flip plate can support the main shaft when the plates of different thicknesses are circled.

[0075] Furthermore, it also includes a discharge mechanism, which includes a push plate and a second telescopic mechanism;

[0076] The pusher plate is arranged between the main roller and the bed and is used to force the circled workpiece to leave the circle area;

[0077] The main body of the second telescopic mechanism is fixedly connected to the bed, and the telescopic end of the second telescopic mechanism is fixedly connected to the pusher plate.

[0078] Preferably, it further comprises a fourth guide structure for guiding the push plate when unloading and retreating, and the fourth guide structure comprises a plurality of guide posts and guide sleeves;

[0079] The guide sleeve is fixedly arranged on the bed, and a hole adapted to the guide sleeve is opened on the bed;

[0080] The guide column is sleeved in the guide sleeve and can slide along the guide sleeve;

[0081] One end of the guide column passes through the guide sleeve and the bed and is fixedly connected to the pusher plate. The end of the guide column away from the pusher plate extends out of the guide sleeve and then extends toward the rear of the bed.

[0082] A plurality of guide posts are evenly spaced and arranged on the push plate.

[0083] The unloading mechanism enables the workpiece to be automatically unloaded after being circled, which solves the problem that the workpiece is heavy and difficult to unload manually after being circled, and reduces the labor intensity of workers.

[0084] Furthermore, it also includes a power mechanism, the power mechanism includes a first power mechanism for driving the main roller to rotate;

[0085] The first power mechanism includes a first reduction motor and a first transmission element. One end of the first transmission element is fixedly connected to the output shaft of the first reduction motor, and the other end is fixedly connected to the main shaft.

[0086] Furthermore, it also includes a second power mechanism for driving the second circle of rollers to rotate;

[0087] The second power mechanism includes a second reduction motor and a double-row chain transmission pair;

[0088] The double-row chain transmission pair includes a driving double-row sprocket, a driven double-row sprocket and a chain; the driving double-row sprocket is coaxially fixedly connected to the output shaft of the second reduction motor, the driven double-row sprocket is coaxially fixedly connected to the second circle roller shaft, and a chain and a chain tensioning mechanism are provided between the driving double-row sprocket and the driven double-row sprocket.

[0089] The double-row chain drive increases the power of the second roller to circle the thicker sheet metal.

[0090] Preferably, it further comprises a third power mechanism for driving the lower feeding roller to rotate;

[0091] The third power mechanism includes a variable frequency motor and a second transmission element, one end of the second transmission element is fixedly connected to the output shaft of the variable frequency motor; the other end is fixedly connected to the lower feeding roller shaft.

[0092] Furthermore, the main roller, the second circular roller and the lower feeding roller have the same linear speed.

[0093] The main roller, the second circle roller and the lower feeding roller have the same linear speed, which ensures that the sheet material conveying speed is consistent with the circle speed, reduces the mutual friction between the circle sheet material and the roller surface, and increases the service life of the roller.

[0094] Furthermore, it also includes a control element for controlling the positions of the main roller, the ring roller and the feeding roller.

[0095] The control element is a ruler, a counter or an encoder;

[0096] The control element can improve the accuracy of the position movement of the main roller, circle roller and upper feeding roller, thereby improving production efficiency and circle quality.

[0097] By adopting the above technical solution, the present invention has the following beneficial effects:

[0098] The engineering circle machine provided by the present invention has the following advantages:

[0099] The main roller that can be raised and lowered vertically and the first and second rollers that can be adjusted horizontally left and right simultaneously make it possible for one device to process engineering wheel rims and agricultural machinery wheel rims of different thicknesses and diameters without changing rollers. The feeding mechanism and unloading mechanism solve the problems of time-consuming and labor-intensive loading due to heavy weight and difficulty in unloading due to the large diameter of the workpiece after rounding, thus realizing automatic loading and unloading. The structure is simple and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0100] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0101] Figure 1 A three-dimensional diagram of an engineering circle machine provided by an embodiment of the present invention;

[0102] Figure 2 for Figure 1 The three-dimensional diagram of an engineering circle machine with some parts removed;

[0103] Figure 3for Figure 1 A front view of an engineering circle machine shown;

[0104] Figure 4 for Figure 3 Middle AA section view;

[0105] Figure 5 for Figure 1 A three-dimensional diagram of the first actuator of an engineering circle machine shown;

[0106] Figure 6 for Figure 1 Enlarged view of point A in the middle;

[0107] Figure 7 for Figure 1 A left side view of an engineering circle machine is shown;

[0108] Figure 8 for Figure 1 A top view of an engineering circle machine is shown.

[0109] Reference numerals:

[0110] 10-bed; 11-first guide rail; 12-cage; 13-ruler; 20-main roller; 21-main shaft; 22-first slide; 221-first guide groove; 23-first actuator; 231-drive nut; 232-first drive screw; 233-worm; 234-first intermediate connecting shaft; 235-first locking nut; 236-cage plate; 30-first circular roller; 31-second circular roller; 32-second slide; 321-second guide groove; 33-second actuator; 331-fixed block; 332-second drive screw; 34-fastening bolt; 40-feeding mechanism; 41-upper feeding roller; 42-lower feeding roller; 43-feeding roller mounting seat; 431-third guide rail; 44-third slide; 441-third guide Toward slot; 45-third actuator; 451-third transmission screw; 452-second locking nut; 50-flip support mechanism; 51-flip plate; 52-flip support seat; 53-telescopic cylinder; 54-rotating shaft; 55-elevator; 56-elevator mounting seat; 57-second intermediate connecting shaft; 58-rotating arm; 60-unloading mechanism; 61-push plate; 62-guide column; 63-guide sleeve; 64-telescopic cylinder; 70-power mechanism; 71-first power mechanism; 711-first reduction motor; 712-universal coupling; 72-second power mechanism; 721-second reduction motor; 722-driving double-row sprocket; 723-driven double-row sprocket; 73-third power mechanism; 731-frequency conversion motor; 732-coupling. DETAILED DESCRIPTION

[0111] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0112] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0113] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0114] The present invention will be further explained below with reference to specific embodiments.

[0115] like Figure 1-3 As shown, the engineering circular machine provided in this embodiment includes: a bed 10, a main roller 20, a first circular roller 30 and a second circular roller 31;

[0116] The main roller 20 is rotatably and liftably arranged on the bed 10, and is used to adapt to the rounding of plates of different thicknesses;

[0117] The first and second circular rollers 30 and 31 have different outer diameters, and are horizontally movably disposed on the bed 10 for circling workpieces with different diameters.

[0118] For simplicity, the circular roller closest to the sheet material feed port is defined as the first circular roller 30, and the circular roller farther from the sheet material feed port is defined as the second circular roller 31. The outer diameter of the second circular roller 31 is larger than that of the first circular roller 30. When adjusting the sheet material thickness, the height of the main roller 20 is adjusted while simultaneously translating the first and second circular rollers 30, 31 so that their outer circles are tangential to the same circumference of the main roller 20, thereby achieving sheet material circularization.

[0119] Furthermore, it also includes a main shaft 21 coaxially arranged with the main roller 20, and the main roller 20 is fixedly sleeved on the middle front part of the main shaft 21;

[0120] Two first slides 22 are spaced apart in the middle and rear portion of the main shaft 21;

[0121] The main shaft 21 is rotatably inserted into the first slide 22;

[0122] The first slide 22 is movably mounted on the bed 10 .

[0123] Thus, the main roller 20 and the main shaft 21 are arranged on the bed 10 so as to be liftable via the first slide 22 .

[0124] A first guide structure is provided between the first slide 22 and the bed 10 for limiting and guiding the first slide 22 when it is raised or lowered.

[0125] There are many forms of the first guide structure. For example, it includes a lifting slide groove provided on the bed 10, and the first slide 22 can be slid up and down in the slide groove; or, guide grooves are provided on both sides of the first slide 22, and guide blocks or guide rails adapted to the guide grooves are provided on the bed 10.

[0126] Reference Figure 4 As shown, in this embodiment, the first guide structure is a first guide rail 11 provided on the bed 10 and a first guide groove 221 provided on both sides of the first slide 22 .

[0127] Furthermore, it includes a first actuator 23 for forcing the main roller 20 to rise and fall;

[0128] Reference Figure 5 As shown, the first actuator 23 includes a transmission nut 231 and a first transmission screw 232 that are threaded together; the first transmission screw 232 is relatively fixedly and vertically arranged on the bed 10;

[0129] In this embodiment, a clamping plate 236 is fixedly provided at one end of the first transmission screw 232 away from the transmission nut 231, and a clamping slot 12 adapted to the clamping plate 236 is provided on the bed 10. The first transmission screw 232 is fixed in the vertical position by the clamping plate 236 and the clamping slot 12.

[0130] The transmission nut 231 and the first slide seat 22 are relatively fixedly arranged in the axial direction of the first transmission screw 232 , and are relatively rotatable in the circumferential direction of the first transmission screw 232 .

[0131] By rotating the transmission nut 231 , the first slide 22 is forced to move up and down by means of the threaded transmission pair between the transmission nut 231 and the first transmission screw 232 .

[0132] The first actuators 23 are arranged in a one-to-one correspondence with the first slides 22 ; a linkage structure is provided between the first actuators 23 on the two first slides 22 for achieving parallel lifting of the main shaft 21 and the main roller 20 .

[0133] The linkage structure includes a worm gear transmission pair and a first intermediate connecting shaft 234; the worm gear transmission pair includes a worm 233 rotatably arranged on the first slide 22, and the worm 233 is arranged parallel to the main shaft 21; a helical gear structure adapted to the worm 233 is provided on the outer circle of the transmission nut 231;

[0134] The two worm gears 233 on the two first slides 22 are connected via a first intermediate connecting shaft 234 .

[0135] The worm gear transmission pair and the first intermediate connecting shaft 234 realize the synchronous action between the two first actuators 23 and the synchronous lifting of the two first slides 22, thereby realizing the parallel lifting of the main roller 20 and the main shaft 21.

[0136] At the same time, the front and rear worm gears 233 are connected by the first intermediate connecting shaft 234 to realize a chain structure. Unless there is a large external force, it is difficult to realize the rotation of the worm gear 233; and the worm gear structure has a self-locking function, and the transmission nut 231 can only be driven to rotate by rotating the worm gear 233, thereby realizing the locking of the two first slides 22, ensuring the axial circular accuracy of the plate body when circling.

[0137] Preferably, one or both ends of at least one worm 233 are provided with a clamping portion for facilitating clamping with a wrench.

[0138] The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating with tools such as wrenches.

[0139] In addition, a first locking nut 235 is also included. The first locking nut 235 is sleeved on the first transmission screw 232 and is used to lock and fix the transmission nut 231.

[0140] When adjustment is needed, loosen the first locking nut 235 in advance, rotate the worm 233 with a wrench or other tool, and all the transmission nuts 231 rotate synchronously to achieve parallel lifting and lowering of the main roller 20. After the adjustment is completed, rotate the first locking nut 235, and the first locking nut 235 is close to the transmission nut 231, thereby locking the transmission nut 231.

[0141] A second roller shaft (not shown) is coaxially disposed within the second roller 31 , and the second roller 31 is fixedly sleeved on the second roller shaft.

[0142] The first circle roller 30 and the second circle roller shaft are rotatably arranged on the second slide 32;

[0143] The second slide 32 is horizontally slidably disposed on the bed 10 .

[0144] Thus, the first circle roller 30 and the second circle roller 31 are arranged on the bed 10 so as to be movable horizontally left and right via the second slide 32 .

[0145] A second guide structure is provided between the second slide 32 and the bed 10 for limiting and guiding the second slide 32 when it moves horizontally left and right.

[0146] Optionally, the second guide structure includes a horizontal guide groove provided on the bed 10 or the second slide 32 , or a guide block or guide rail provided on the second slide 32 or the bed 10 and adapted to the horizontal guide groove.

[0147] In this embodiment, the second guide structure includes a second guide rail (not shown) provided on the bed 10 and a second guide groove 321 provided on the second slide 32 .

[0148] In addition, this embodiment further includes a second actuator 33 for forcing the first and second circular rollers 30 and 31 to move horizontally left and right; preferably, referring to Figure 2 As shown, the second actuator 33 includes a plurality of horizontally arranged second transmission screws 332; the second transmission screws 332 are threadedly connected to the fixed block 331 through a threaded transmission pair;

[0149] The fixing block 331 is firmly connected to the bed 10;

[0150] The fixing block 331 is provided with a threaded hole adapted to fit the second transmission screw 332 .

[0151] A plurality of second transmission screw rods 332 are symmetrically disposed on both sides of the second slide 32 . One end of the second screw rod passes through the fixing block 331 and abuts against the bottom plate of the second slide 32 .

[0152] In this embodiment, two second transmission screw rods 332 are respectively provided on the left and right sides of the second slide seat 32 .

[0153] An end of the second transmission screw 332 away from the second slide seat 32 is provided with a clamping portion for facilitating clamping with a wrench.

[0154] The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating with tools such as wrenches.

[0155] Furthermore, it also includes a fastening bolt 34 , which is used to fasten the moved second slide 32 to the bed 10 .

[0156] When the first circle roller 30 and the second circle roller 31 move to the left, the diameter of the workpiece after being rounded is larger; when the first circle roller 30 and the second circle roller 31 move to the right, the diameter of the workpiece after being rounded is smaller.

[0157] When adjustment is needed, first loosen the fastening bolt 34; when the first circle round roller 30 and the second circle round roller 31 are adjusted to the left, use a wrench to rotate the second transmission screw 332 on the left side of the second slide 32 to move it away from the second slide 32, and then use a wrench to rotate the second transmission screw 332 on the right side of the second slide 32 to push the second slide 32 to move to the right, thereby driving the first circle round roller 30 and the second circle round roller 31 to move to the right at the same time; similarly, when the first circle round roller 30 and the second circle round roller 31 are adjusted to the right, use a wrench to rotate the second transmission screw 332 on the right side of the second slide 32 to move it away from the second slide 32, and then use a wrench to rotate the second transmission screw 332 on the left side of the second slide 32 to push the second slide 32 to move right, thereby driving the first circle round roller 30 and the second circle round roller 31 to move to the right at the same time; after the adjustment is completed, the second slide 32 is tightened by the fastening bolt 34.

[0158] refer to Figure 6 As shown, the feeding mechanism 40 is further included, and the feeding mechanism 40 includes an upper feeding roller 41 and a lower feeding roller 42 which are vertically arranged;

[0159] The upper feeding roller 41 and the lower feeding roller 42 are rotatably mounted on the feeding roller mounting base 43, and the vertical gap is adjustable, so as to clamp plates of different thicknesses and feed them to the first circle of round rollers 30;

[0160] The feeding roller mounting seat 43 is fixedly arranged on the bed 10 .

[0161] A lower feeding roller shaft (not shown) is coaxially arranged inside the lower feeding roller 42, and the lower feeding roller 42 is fixedly sleeved on the lower feeding roller shaft;

[0162] The lower feeding roller shaft is rotatably arranged on the feeding roller mounting seat 43;

[0163] A third slide 44 is provided at both ends of the lower feeding roller shaft;

[0164] The third slide 44 is movably mounted on the feed roller mounting base 43 .

[0165] Thus, the upper feeding roller 41 is arranged on the feeding roller mounting seat 43 in a liftable manner through the third slide 44 .

[0166] A third guide structure is provided between the third slide 44 and the feeding roller mounting seat 43 for limiting and guiding the third slide 44 when it is raised or lowered.

[0167] There are many forms of the third guide structure. For example, it includes a lifting slide groove provided on the feeding roller mounting seat 43, and the third slide 44 can be slid up and down in the slide groove; or, guide grooves are provided on both sides of the third slide 44, and the feeding roller mounting seat 43 is provided with a guide block or guide rail adapted to the guide groove.

[0168] In this embodiment, the third guide structure includes a third guide rail 431 provided on the feeding roller mounting seat 43 and a third guide groove 441 provided on both sides of the third slide seat 44 .

[0169] In addition, a third actuator 45 is included for forcing the upper feeding roller 41 to rise and fall;

[0170] The third actuator 45 includes a third transmission screw 451 vertically arranged on the upper portion of the feed roller mounting seat 43, and the third transmission screw 451 is connected to the upper portion of the feed roller mounting seat 43 through a thread;

[0171] The third transmission screw 451 passes through the top of the feeding roller mounting seat 43 and is fixedly connected to the third slide seat 44 downward;

[0172] A threaded hole that cooperates with the third transmission screw 451 is provided on the upper part of the feeding roller mounting seat 43.

[0173] The third transmission screw 451 is rotated, and the upper feeding roller 41 is forced to move up and down through the thread transmission between the third transmission screw 451 and the top of the feeding roller mounting seat 43.

[0174] A clamping portion for clamping a wrench is provided at one end of the third transmission screw 451 away from the third slide seat 44 .

[0175] The cross section of the clamping portion is a regular tetrahedron, a regular hexahedron, etc., which is convenient for clamping and rotating by tools such as wrenches.

[0176] Furthermore, it also includes a second locking nut 452, which is sleeved on the third transmission screw 451 and rotatably arranged on the top of the feeding roller mounting seat 43 for locking and fixing the third transmission screw 451.

[0177] When adjustment is needed, loosen the second locking nut 452 in advance, rotate the third transmission screw 451 with a wrench or other tool, and use the threaded transmission between the feeding roller mounting seat 43 and the third transmission screw 451 to force the third slide 44 to rise and fall, thereby adjusting the gap between the upper feeding roller 41 and the lower feeding roller 42 to meet the clamping and conveying of workpieces of different thicknesses.

[0178] refer to Figure 1 and Figure 7 As shown, it also includes a flip support mechanism 50, which is arranged at the front of the bed 10 and includes a flip plate 51 and a flip support seat 52;

[0179] The flip support base 52 is fixedly arranged at the front portion of the bed 10;

[0180] The flip plate 51 is pivotally connected to the upper portion of the flip support base 52 via a rotating shaft 54;

[0181] A support hole adapted to the main shaft 21 is provided on the flip plate 51 for supporting the front end of the main shaft 21 when the flip plate 51 is upright.

[0182] Furthermore, it also includes a first telescopic mechanism for forcing the flip plate 51 to rotate around the rotation axis 54;

[0183] In this embodiment, the first telescopic mechanism is a telescopic oil cylinder 53 .

[0184] The main body of the telescopic oil cylinder 53 is pivotally connected to the bottom of the bed 10, and the telescopic end of the telescopic oil cylinder 53 is pivotally connected to a rotating arm 58;

[0185] The other end of the rotating arm 58 is pivotally connected to the flip plate 51 .

[0186] Therefore, when the protruding end of the telescopic cylinder 53 is extended, the flip plate 51 is forced to rotate to a vertical position, thereby providing support for the front end of the main shaft 21, solving the problem of uneven force on the front end of the main shaft 21 due to the cantilever, which is prone to bending and deformation during the circle process, resulting in different distances between the front and rear ends of the main roller 20 and the second circle roller 31, causing the workpiece to be misaligned after circled, affecting subsequent processing; when the protruding end of the telescopic cylinder 53 is retracted, the flip plate 51 is forced to rotate to a horizontal position, thereby releasing the support for the main shaft 21, making it easier for the workpiece to leave the circle area after circled, and completing unloading.

[0187] In addition, a lift 55 is included to force the flip plate 51 to rise and fall vertically;

[0188] In this embodiment, two elevators 55 are horizontally arranged and fixed on the bed 10 through elevator mounting bases 56;

[0189] The output end of the elevator 55 is fixedly connected to the bottom of the flip support seat 52 , and the input ends of the elevator 55 are connected via a second intermediate connecting shaft 57 .

[0190] The second intermediate connecting shaft 57 realizes the synchronous lifting and lowering of the output end of the elevator 55.

[0191] The lift 55 forces the flip plate 51 to rise and fall vertically, cooperating with the rise and fall of the main shaft 21 to achieve the support of the flip plate 51 on the main shaft 21 when the plates of different thicknesses are circled.

[0192] refer to Figure 8 As shown, it also includes a discharge mechanism 60, which includes a push plate 61 and a second telescopic mechanism;

[0193] The pusher plate 61 is provided between the main roller 20 and the bed 10 and is used to force the circled workpiece to leave the circled area.

[0194] In this embodiment, the second telescopic mechanism is a telescopic cylinder 64;

[0195] The main body of the telescopic cylinder 64 is fixedly connected to the bed 10 , and the telescopic end of the telescopic cylinder 64 is fixedly connected to the pusher plate 61 .

[0196] In addition, it also includes a fourth guide structure for guiding the push plate 61 when unloading and retreating, and the fourth guide structure includes a plurality of guide posts 62 and a guide sleeve 63;

[0197] In this embodiment, the fourth guide structure includes four guide posts 62 and four guide sleeves 63;

[0198] The guide sleeve 63 is fixedly mounted on the bed 10 , and a hole adapted to fit the guide sleeve 63 is provided on the bed 10 ;

[0199] The guide post 62 is sleeved in the guide sleeve 63 and can slide along the guide sleeve 63;

[0200] One end of the guide post 62 passes through the guide sleeve 63 and the bed 10 and is fixedly connected to the push plate 61. The end of the guide post 62 away from the push plate 61 extends out of the guide sleeve 63 and extends toward the rear of the bed 10.

[0201] The four guide posts 62 are arranged on the pusher plate 61 in a bilaterally symmetrical and evenly spaced manner.

[0202] The unloading mechanism 60 enables the workpiece after being rounded to be unloaded automatically, thereby solving the problem that the workpiece after being rounded is heavy and difficult to unload manually, and reducing the labor intensity of workers.

[0203] Furthermore, a power mechanism 70 is included, and the power mechanism 70 includes a first power mechanism 71 for driving the main roller 20 to rotate;

[0204] The first power mechanism 71 includes a first reduction motor 711 and a first transmission element, one end of the first transmission element is fixedly connected to the output shaft of the first reduction motor 711, and the other end is fixedly connected to the main shaft 21;

[0205] In this embodiment, the first transmission element is a universal joint 712 .

[0206] Furthermore, it also includes a second power mechanism 72 for driving the second circle roller 31 to rotate;

[0207] The second power mechanism 72 includes a second reduction motor 721 and a double-row chain transmission pair;

[0208] The double-row chain transmission pair includes a driving double-row sprocket 722, a driven double-row sprocket 723 and a chain; the driving double-row sprocket 722 is coaxially fixedly connected to the output shaft of the second reduction motor 721, and the driven double-row sprocket 723 is coaxially fixedly connected to the axis of the second circle roller 31, and a chain (not shown) and a chain tensioning mechanism (not shown) are arranged between the driving double-row sprocket 722 and the driven double-row sprocket 723.

[0209] The double-row chain transmission increases the circular motion of the second circular roller 31 to meet the circular motion requirements of thicker sheets.

[0210] Preferably, it further comprises a third power mechanism 73 for driving the lower feeding roller 42 to rotate;

[0211] The third power mechanism 73 includes a variable frequency motor 731 and a second transmission element. One end of the second transmission element is fixedly connected to the output shaft of the variable frequency motor 731; the other end is fixedly connected to the lower feeding roller shaft.

[0212] In this embodiment, the second transmission element is a coupling 732 .

[0213] Furthermore, the main roller 20, the second circular roller 31 and the lower feeding roller 42 have the same linear speed.

[0214] The main roller 20, the second circle roller 31 and the lower feeding roller 42 have the same linear speed, which ensures that the sheet material conveying speed is consistent with the circle speed, reduces the mutual friction between the circle sheet material and the roller surface, and improves the service life of the roller.

[0215] In this embodiment, the main roller 20 and the second circle roller 31 have the same diameter, so the reduction ratio of the first reduction motor 711 and the second reduction motor 721 is the same; the diameter of the lower feeding roller 42 is smaller than the diameter of the main roller 20, so the frequency conversion motor 731 is selected, and the linear speed is achieved by adjusting the speed of the frequency conversion motor 731 to be the same as that of the main roller 20 and the second circle roller 31.

[0216] Furthermore, it also includes control elements for controlling the positions of the main roller 20, the ring roller and the feeding roller.

[0217] The control element is a scale 13, a counter or an encoder;

[0218] The control element can improve the accuracy of the position movement of the main roller 20, the first circle roller 30, the second circle roller 31 and the upper feeding roller 41, thereby improving production efficiency and circle quality.

[0219] The engineering circle machine provided by the present invention has the following advantages:

[0220] The main roller that can be raised and lowered vertically and the first and second rollers that can be adjusted horizontally left and right simultaneously make it possible for one device to process engineering wheel rims and agricultural machinery wheel rims of different thicknesses and diameters without changing rollers. The feeding mechanism and unloading mechanism solve the problems of time-consuming and labor-intensive loading due to heavy weight and difficulty in unloading due to the large diameter of the workpiece after rounding, thus realizing automatic loading and unloading. The structure is simple and the production efficiency is high.

[0221] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An engineering circle machine, characterized in that: include: Bed, main roller, first circle roller and second circle roller; The main roller is rotatably and liftably arranged on the bed, and is used to adapt to the rounding of plates of different thicknesses; The outer diameters of the first and second circular rollers are different. The first and second circular rollers are arranged on the bed in a horizontally movable manner left and right via a second slide, and are used to circle workpieces of different diameters. The machine also includes a main shaft coaxially arranged with the main roller, and the main roller is fixedly sleeved on the middle front portion of the main shaft. At least two first slides are spaced apart at the middle and rear portion of the main shaft; The main shaft is rotatably inserted into the first slide; The first slide can be raised and lowered on the bed; It also includes a first actuator for forcing the main roller to rise and fall; The first actuator includes a transmission nut and a first transmission screw in threaded transmission cooperation; the first transmission screw is relatively fixedly and vertically arranged on the bed; In the axial direction of the first transmission screw, the transmission nut and the first slide are relatively fixedly arranged, and in the circumferential direction of the first transmission screw, the transmission nut and the first slide are relatively rotated; The first actuators are arranged in a one-to-one correspondence with the first slides; a linkage structure is provided between the first actuators on two adjacent first slides for achieving parallel lifting of the main shaft and the main roller; The linkage structure includes a worm gear transmission pair and a first intermediate connecting shaft; the worm gear transmission pair includes a worm rotatably arranged on the first slide, and the worm is arranged parallel to the main shaft; the outer circle of the transmission nut is provided with a helical gear structure adapted to the worm; The two worms on two adjacent first slides are connected by the first intermediate connecting shaft; One end or both ends of at least one of the worms are provided with a clamping portion for facilitating clamping with a wrench.

2. The engineering circle machine according to claim 1, characterized in that: A first guide structure is provided between the first slide and the bed for limiting and guiding the first slide when it is raised or lowered.

3. The engineering circle machine according to claim 1, characterized in that: It also includes a first locking nut, which is sleeved on the first transmission screw and is used to lock and fix the transmission nut.

4. The engineering circle machine according to claim 1, characterized in that: A second circle roller shaft is coaxially arranged inside the second circle roller, and the second circle roller is fixedly sleeved on the second circle roller shaft; The first circle roller and the second circle roller shaft are rotatably arranged on the second slide seat; The second slide can be arranged on the bed in a horizontally slidable manner.

5. The engineering circle machine according to claim 4, characterized in that: A second guide structure is provided between the second slide and the bed for limiting and guiding the second slide when sliding horizontally left and right.

6. The engineering circle machine according to claim 4, characterized in that: It also includes a second actuator for forcing the first and second circular rollers to move horizontally left and right; The second actuator includes a plurality of horizontally arranged second transmission screws; the second transmission screws are threadedly connected to the fixed block through a threaded transmission pair; The fixing block is firmly connected to the bed; The fixing block is provided with a threaded hole adapted to the second transmission screw; A plurality of second transmission screw rods are symmetrically arranged on both sides of the second slide seat, and one end of the second transmission screw rod passes through the fixing block and abuts against the bottom plate of the second slide seat.

7. The engineering circle machine according to claim 6, characterized in that: A clamping portion for facilitating clamping with a wrench is provided at one end of the second transmission screw away from the second slide seat.

8. The engineering circle machine according to claim 4, characterized in that: It also includes a fastening bolt, which is used to fasten the moved second slide seat to the bed.

9. The engineering circle machine according to claim 1, characterized in that: The invention also comprises a feeding mechanism, wherein the feeding mechanism comprises an upper feeding roller and a lower feeding roller arranged vertically; The upper feeding roller and the lower feeding roller are rotatably arranged on the feeding roller mounting seat, and the vertical gap is adjustable, and are used to clamp plates of different thicknesses and send them to the first circle of round rollers; The feeding roller mounting seat is fixedly arranged on the bed.

10. The engineering circle machine according to claim 9, characterized in that: A lower feeding roller shaft is coaxially arranged in the lower feeding roller, and the lower feeding roller is fixedly sleeved on the lower feeding roller shaft; The lower feeding roller shaft is rotatably arranged on the feeding roller mounting seat; A third slide is provided at both ends of the lower feeding roller shaft; The third slide is movably mounted on the feeding roller mounting seat.

11. The engineering circle machine according to claim 10, characterized in that: A third guide structure is provided between the third slide and the feeding roller mounting seat for limiting and guiding the third slide when it is raised or lowered.

12. The engineering circle machine according to claim 10, characterized in that: It also includes a third actuator for forcing the upper feeding roller to rise and fall; The third actuator includes a third transmission screw vertically arranged on the upper portion of the feeding roller mounting seat, and the third transmission screw is connected to the upper portion of the feeding roller mounting seat through a thread; The third transmission screw passes through the top of the feeding roller mounting seat and is fixedly connected downward to the third slide seat; A threaded hole that cooperates with the third transmission screw is provided on the upper portion of the feeding roller mounting seat.

13. The engineering circle machine according to claim 12, characterized in that: The end of the third transmission screw away from the third slide seat is provided with a clamping portion for clamping with a wrench.

14. The engineering circle machine according to claim 12, characterized in that: It also includes a second locking nut, which is sleeved on the third transmission screw and rotatably arranged on the top of the feeding roller mounting seat for locking and fixing the third transmission screw.

15. The engineering circle machine according to claim 1, characterized in that: It also includes a turning support mechanism, which is arranged at the front part of the bed and includes a turning plate and a turning support seat; The flip support seat is fixedly arranged on the front part of the bed; The flip plate is pivotally connected to the upper portion of the flip support seat via a rotating shaft; The flip plate is provided with a support hole adapted to the main shaft, for supporting the front end of the main shaft when the main shaft is upright.

16. The engineering circle machine according to claim 15, characterized in that: It also includes a first telescopic mechanism for forcing the flip plate to rotate around the rotation axis; The body of the first telescopic mechanism is pivotally connected to the bottom of the bed, and the telescopic end of the first telescopic mechanism is pivotally connected to a rotating arm; The other end of the rotating arm is pivotally connected to the flip plate.

17. The engineering circle machine according to claim 15, characterized in that: Also included is a lift for forcing the flip plate to rise and fall vertically; The elevators are arranged horizontally in two pieces and are fixed on the bed through elevator mounting bases; The output end of the elevator is fixedly connected to the bottom of the flip support seat, and the input end of the elevator is connected via a second intermediate connecting shaft; The second intermediate connecting shaft realizes the synchronous lifting and lowering of the output end of the elevator.

18. The engineering circle machine according to claim 1, characterized in that: It also includes a discharge mechanism, which includes a push plate and a second telescopic mechanism; The pusher plate is arranged between the main roller and the bed and is used to force the circled workpiece to leave the circle area; The main body of the second telescopic mechanism is fixedly connected to the bed, and the telescopic end of the second telescopic mechanism is fixedly connected to the pusher plate.

19. The engineering circle machine according to claim 18, characterized in that: It also includes a fourth guide structure for guiding the push plate when unloading and retreating, and the fourth guide structure includes a plurality of guide posts and guide sleeves; The guide sleeve is fixedly arranged on the bed, and a hole adapted to the guide sleeve is opened on the bed; The guide column is sleeved in the guide sleeve and can slide along the guide sleeve; One end of the guide column passes through the guide sleeve and the bed and is fixedly connected to the pusher plate. The end of the guide column away from the pusher plate extends out of the guide sleeve and then extends toward the rear of the bed. A plurality of guide posts are evenly spaced and arranged on the push plate.

20. The engineering circle machine according to claim 10, characterized in that: It also includes a power mechanism, the power mechanism includes a first power mechanism that drives the main roller to rotate; The first power mechanism includes a first reduction motor and a first transmission element. One end of the first transmission element is fixedly connected to the output shaft of the first reduction motor, and the other end is fixedly connected to the main shaft.

21. The engineering circle machine according to claim 20, characterized in that: Also includes a second power mechanism that drives the second circle of rollers to rotate; The second power mechanism includes a second reduction motor and a double-row chain transmission pair; The double-row chain transmission pair includes a driving double-row sprocket, a driven double-row sprocket and a chain; the driving double-row sprocket is coaxially fixedly connected to the output shaft of the second reduction motor, the driven double-row sprocket is coaxially fixedly connected to the second circle roller shaft, and a chain and a chain tensioning mechanism are provided between the driving double-row sprocket and the driven double-row sprocket.

22. The engineering circle machine according to claim 20, characterized in that: It also includes a third power mechanism for driving the lower feeding roller to rotate; The third power mechanism includes a variable frequency motor and a second transmission element, one end of the second transmission element is fixedly connected to the output shaft of the variable frequency motor; the other end is fixedly connected to the lower feeding roller shaft.

23. The engineering circle machine according to claim 10, characterized in that: The main roller, the second circular roller and the lower feeding roller have the same linear speed.

24. The engineering circle machine according to claim 10, characterized in that: It also includes a control element for controlling the positions of the main roller, the ring roller and the feeding roller.

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