Radial rotary conveying mechanism for the press platform of special-shaped rail forging production

Abstract

Provided is a radial rotary conveying mechanism for a special-shaped rail forging press machine, comprising a servo motor, a radial horizontal rotary reduction transmission mechanism, a rail load-bearing mounting base, and a common rail; the upper end surface of the rail load-bearing mounting base is fixedly mounted with a spaced parallel common rail; the lower end surface of the rail load-bearing mounting base is fixedly mounted with a servo motor; the servo motor drives the rail load-bearing mounting base to rotate radially on a fixed axis through the radial horizontal rotary reduction transmission mechanism. The present invention can realize the on / off, connection, and switching operations between at least three or more platform rails and a press, and can be used to simplify the design of a multi-platform rail system to the maximum extent; it is economical, practical, reliable, and efficient; and it especially meets the requirements of large tonnage, anti-bumping, and high-precision docking load-bearing switching and conveying.

Description

Technical Field

[0001] The invention belongs to the technical field of special equipment for transporting or fixing the position of a combined die in operation transportation, and specifically relates to a radial rotary conveying mechanism for a moving table of a press machine for forging production of special-shaped rails. Background Art

[0002] The mobile workbench, or transfer table, plays an extremely important role in the die changing of a mechanical press, and the number of mobile workbenches plays a leading role in improving the efficiency of the press. In the prior art, due to the limitations of site space and investment funds, such as the press equipped with a double mobile workbench and the mobile control device and control method technical scheme disclosed in publication number CN103085314B, the use of a double transfer table press has solved the problems of huge investment in presses and time-consuming hoisting for die changing to a certain extent. However, the double transfer table press still cannot meet the needs of complex multi-process forging production of rails, especially in the multi-process forging production of special-shaped rails. The double transfer table press still needs to use an overhead crane to switch the operating mode, which is not conducive to daily rapid conversion and use. At the same time, the lifting and die changing process requires repeated disassembly of the mold, and the operation is still cumbersome. In this regard, the following technical solution is proposed. Summary of the invention

[0003] The technical problem solved by the present invention is: to provide a radial rotary conveying mechanism for a movable table of a press machine for forging production of special-shaped rails, to solve the technical problem of conveying movable tables in multiple directions to one press machine, and to meet the demand for efficient and low economic expenditure expansion of multi-process forging production.

[0004] The technical solution adopted by the present invention is as follows: a radial rotary conveying mechanism for a movable table of a press machine for forging production of special-shaped rails, comprising a servo motor, a radial horizontal rotary reduction transmission mechanism, a rail load-bearing mounting base, and a common rail; the common rails with parallel intervals are fixedly installed on the upper end surface of the rail load-bearing mounting base; a servo motor is fixedly installed on the lower end surface of the rail load-bearing mounting base; the servo motor drives the fixed-axis radial rotation of the rail load-bearing mounting base through the radial horizontal rotary reduction transmission mechanism.

[0005] In the above technical scheme, further: the radial horizontal rotation reduction transmission mechanism is composed of a shaft seat, a transmission shaft, a worm gear transmission mechanism, a bevel gear, and a radial bevel rack; the transmission shaft is installed at the bottom of the rail load-bearing mounting base through the shaft seat rotation support; the transmission shaft is driven by a servo motor, and the worm gear transmission mechanism reduces the transmission to drive the transmission shaft to rotate, and a bevel gear is installed at the shaft end of the transmission shaft, and the four bevel gears respectively engage the radial bevel rack below the rail load-bearing mounting base from four radially evenly distributed points to drive the rail load-bearing mounting base to rotate horizontally and radially.

[0006] In the above technical scheme, further: there are two transmission shafts, the two transmission shafts are cross-intersected and rotatably supported in the bottom space of the rail load-bearing mounting base; there are two servo motors, the two servo motors drive each transmission shaft to rotate from the middle of each transmission shaft through a worm gear mechanism; bevel gears are coaxially fixed on both ends of the outer shaft ends of the transmission shaft; the four bevel gears simultaneously engage with radial bevel racks from four radially evenly distributed points to drive the rail load-bearing mounting base to rotate horizontally radially.

[0007] In the above technical solution, further: a plurality of road wheel groups are respectively provided on the transmission shaft; the plurality of road wheel groups share the weight of the rail load-bearing mounting base, the bevel gear does not bear the weight of the base, and the bevel gear only provides a centripetal meshing power transmission guide for the rotation of the rail load-bearing mounting base.

[0008] In the above technical solution, further: the shaft seat has a cylindrical structure; the shaft seat is concentrically and vertically fixedly installed at the bottom of the rail load-bearing mounting base; the shaft seat provides concentric guidance for the horizontal radial rotation of the rail load-bearing mounting base.

[0009] In the above technical solution, preferably: the rail load-bearing mounting base is a horizontal box structure, and the horizontal box is provided with load-bearing vertical ribs, which are evenly distributed in the box in a criss-cross pattern.

[0010] In the above technical solution, further: the common rail connection part is a concentric, same-radius arc-cut structure.

[0011] In the above technical scheme, further: a rail guide locking mechanism is installed on the common rail; the rail guide locking mechanism consists of a cylinder or a hydraulic cylinder, a locking block, and a locking frame; the cylinder or the hydraulic cylinder is horizontally fixedly installed beside the common rail; the piston rod of the cylinder or the hydraulic cylinder is fixedly connected to one end of the horizontally movable locking block; the other end of the locking block is plugged and adapted to the locking frame, and the locking frame is respectively fixedly installed horizontally in a collinear manner beside the common rail and beside the connected rail.

[0012] In the above technical solution, preferably: the connection gap between the common rail and the connected rail is less than or equal to 1 mm.

[0013] The advantages of the present invention compared with the prior art are:

[0014] 1. The present invention is used to be arranged at the center of the cross-shaped rail structure, and through the 360° horizontal rotation of the rail load-bearing mounting base, the common rail is driven to rotate, so as to realize the rotation switching adjustment of the common rail in different directions, and realize the transportation switching of multiple direction shifting platforms toward the press station rails; solve the technical problem of low die changing efficiency in the production of special-shaped rails with multiple processes and complex forging and pressing, and realize resource integration; reduce the cost of press equipment expenditure, compact and save the space occupied by the equipment, save the trouble of frequent die changing hoisting and disassembly operations, improve processing efficiency, and lay the foundation for meeting the continuous expansion of complex process use needs; simplify the design problem of matching a single press with multiple shifting platform rail systems to the greatest extent; economical, practical, reliable and efficient.

[0015] 2. The present invention adopts servo motor drive and radial horizontal rotation reduction transmission mechanism to reduce speed to realize horizontal rotation of the rail load-bearing mounting base, which can realize high-precision controllable rotation. The rotation accuracy can be controlled within ±0.5°, the signal delay is less than 10mS, and the control is precise and reliable.

[0016] 3. The present invention reduces speed through a worm gear transmission mechanism, and the bevel gear meshes with the radial bevel rack to realize the horizontal rotation of the rail load-bearing mounting base. The worm gear transmission mechanism can not only realize the deceleration function of the transmission shaft, but also has a self-locking function, so that the present invention has a position locking function after high-precision rotation and docking, effectively preventing position deviation and displacement after docking.

[0017] 4. The two transmission shafts of the present invention are respectively installed in a cross-intersecting rotation support at the bottom space of the rail load-bearing mounting base, and bevel gears are coaxially fixedly installed on both ends of the outer shaft end of each transmission shaft; therefore, a total of four bevel gears respectively engage the radial bevel racks from four radially evenly distributed points to drive the horizontal radial rotation of the rail load-bearing mounting base; the four-point evenly distributed support transmission is stable and reliable, so that the horizontal rotation of the rail load-bearing mounting base in the radial rotary conveying mechanism of the present invention can be stably and reliably operated without bumps.

[0018] 5. The cross-intersecting transmission shafts of the present invention are respectively provided with a plurality of road wheel groups; the plurality of road wheel groups share the weight of the load-bearing mounting base of the rail, and the bevel gear only provides a centripetal meshing power transmission guide for the rotation of the load-bearing mounting base of the rail; the problem of how the radial rotary conveying mechanism of the present invention can carry a tonnage-level weight transfer platform and mold tooling is solved, and the radial rotary conveying mechanism is more stable and reliable when carrying the rotation of the transfer platform.

[0019] 6. The bottom end of the shaft seat of the present invention, which is a cylindrical structure, is used for coaxial rotation and adaptation installation on a fixed base to provide a concentric guide for the horizontal radial rotation of the rail load-bearing mounting base, so that the rail load-bearing mounting base can rotate stably and centered.

[0020] 7. The rail load-bearing mounting base of the present invention adopts a box structure with horizontal support formed by evenly distributed load-bearing vertical ribs in a criss-cross shape. The structural support is stable, economical and practical. Each point of the box is evenly stressed, which effectively prevents the box from deforming and can bear the weight of the moving platform more stably and reliably.

[0021] 8. The common rail of the present invention adopts a concentric, same-radius arc-cut structure to connect with the connected rail. On the one hand, it provides an avoidance space for the radial angle rotation of the common rail when connecting with rails in different directions. On the other hand, it is beneficial to improve the docking accuracy of the platform rail and prevent the occurrence of docking failure problems such as step docking, height and width misalignment docking, slope docking, etc.

[0022] 9. The rail guide locking mechanism installed on the public rail of the present invention, the cylinder or hydraulic cylinder in the rail guide locking mechanism drives the locking block to telescopically move, when the locking block is extended, it is inserted into the locking frame of the public rail and the locking frame of the connected rail at the same time, to achieve the guidance and positioning locking of the rail joint, so that the rails can be docked with high precision, reliability, positioning and locking, and the reliability of the rail docking transition is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the lateral connection state of an embodiment of the present invention applied to a press machine matching three transfer tables;

[0024] Figure 2 The present invention is applied to Figure 1 Schematic diagram of the longitudinal connection state of the embodiment;

[0025] Figure 3 A schematic diagram of the use state of an embodiment of the present invention applied to a press machine matching five transfer tables;

[0026] Figure 4 The radial rotary conveying mechanism of the present invention is applied to Figure 1 A three-dimensional diagram of the embodiment in use;

[0027] Figure 5 It is a three-dimensional diagram of the radial rotary conveying mechanism of the present invention;

[0028] Figure 6 It is a layout diagram of a preferred embodiment of a transmission mechanism and a force-sharing structure in a radial rotary conveying mechanism of the present invention;

[0029] Figure 7 The radial rotary conveying mechanism of the present invention Figure 4 An enlarged detailed structural diagram of the middle rail guide locking mechanism;

[0030] In the figure: 1-press, 2-press station rail, 3-transfer station rail, 4-radial rotary conveying mechanism, 5-transfer platform; 41-servo motor, 42-radial horizontal rotation reduction transmission mechanism, 43-rail load-bearing mounting base, 44-common rail; 421-axle seat, 422-transmission shaft, 423-worm gear transmission mechanism, 424-bevel gear, 425-radial bevel rack; 45-road wheel set; 431-load-bearing vertical rib; 441-arc cutting structure; 6-rail guide locking mechanism; 61-cylinder or hydraulic cylinder, 62-locking block, 63-locking frame. DETAILED DESCRIPTION

[0031] The following will be combined with the attached embodiment of the present invention Figure 1-7 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] (like Figure 1 , Figure 2 , Figure 3 , Figure 4 ) is a specific application embodiment of the radial rotary conveying mechanism of the movable platform of the press machine for forging production of special-shaped rails of the present invention, hereinafter referred to as: radial rotary conveying mechanism 4.

[0033] Application Example 1 of the present invention: See Figure 1 , Figure 2

[0034] On the basis of a press machine 1; a press machine station rail 2 is provided under the press machine 1, and one press machine station rail 2 is a conventional press machine station rail. One press machine station rail 2 and three transfer platform station rails 3 are respectively cross-centered with a radial rotary conveying mechanism 4, one press machine station rail 2 and multiple transfer platform station rails 3 are respectively arranged in four positive directions of east, west, south and north of the radial rotary conveying mechanism 4, one press machine station rail 2 and multiple transfer platform station rails 3 form a cross-type rail structure, and a cross-type rail structure is finally connected to the press machine station rail 2. Transfer platforms 5 are respectively provided on the three transfer platform station rails 3; the transfer platforms 5 are respectively used to install different types of forging die tooling. Each transfer platform 5 is respectively provided with independent moving, lifting and lowering mechanisms, and the moving, lifting and lowering mechanisms are common modes in the industry to meet the use requirements of the press.

[0035] When this embodiment is used: Figure 1As shown in FIG. 1 , when the transfer platform 5 on the transfer platform station rail 3 opposite to the press machine 1 needs to be sent to the press machine station rail 2, the radial rotary conveying mechanism 4 drives the common rail 44 thereon to rotate 90° to the position shown in FIG. Figure 1 In the horizontal state shown, the press machine 1 can realize the upper platform 5 on the opposite platform station rail 3 entering and exiting the press station rail 2. When any one of the upper and lower platforms 5 on the press machine 1 needs to be sent to the press station rail 2, Figure 1 In the state shown, the radial rotary conveying mechanism 4 first drives the common rail 44 on it to rotate 90° clockwise or counterclockwise to the position shown in FIG. Figure 2 The longitudinal rail docking state shown in the figure: Then any one of the upper and lower sides of the press 1 moves to the center position of the radial rotary conveying mechanism 4, and the radial rotary conveying mechanism 4 drives the upper and lower sides of the press 1 to rotate 90 degrees in the opposite direction to restore to the position shown in the figure. Figure 1 The lateral rails are shown in docking state, and then the transfer platform 5 moves from the radial rotary conveying mechanism 4 to the press station rail 2 to complete the side transfer platform 5 transportation.

[0036] Application Example 2 of the present invention: See Figure 3

[0037] One press machine 1 is equipped with five sets of transfer platforms 5, that is, one press machine station rail 2 and five transfer platform station rails 3 form an embodiment of two cross-type rail structures. When this embodiment is used: Figure 3 As shown, the two cross-shaped rail structures need to share a transfer station rail 3 at the intersection of the two cross-shaped rail structures, that is, the transfer station rail 3 at the inner intersection of the two cross-shaped rail structures connects the two cross-shaped rail structures to communicate with the press station rail 2. As shown in the figure, the two cross-shaped rail structures are located on the outer branches, and on the transfer station rail 3 at the non-intersection, any of the transfer stations 5 provided respectively can be transported toward the press station rail 2. Figure 3 As shown in the figure, the farthest right side transfer platform 5 is transported to the press station rail 2 as an example: the right side cross rail structure is first as follows Figure 3 The state shown is rotated 90° counterclockwise or clockwise to achieve the lateral docking of the right cross-rail structure, and then the farthest transfer platform 5 on the right first moves to the center of the radial rotary conveying mechanism 4 of the right cross-rail structure among the two cross-rail structures, and the transfer platform 5 continues to move forward until the transfer platform 5 moves to the center of the radial rotary conveying mechanism 4 of the left cross-rail structure and stops, and the radial rotary conveying mechanism 4 on the left then drives the upper transfer platform 5 to rotate radially 90° to switch from the lateral docking state of the left rail to the longitudinal docking state of the left rail, and then the transfer platform 5 moves upward along the radial rotary conveying mechanism 4 that is longitudinally opened on the left to the press station rail 2, completing Figure 3 The farthest right side transfer platform 5 is shown to be transported to the press station rail 2. By analogy, Figure 3Embodiment: The upward moving platform 5 is transported toward the press station rail 2 in any five directions.

[0038] Among them, different transfer platforms 5 can be respectively installed with multi-station transfer platform mold tooling, rough pier mold tooling, heel end pressing mold tooling, ordinary heel end pressing mold tooling, extended heel end pressing mold tooling, etc.

[0039] A cross-shaped rail structure is adopted, and the radial rotary conveying mechanism 4 of the present invention is set at the cross intersection position. When multiple transfer platforms 5 enter and exit the press station rail 2, the radial rotary conveying mechanism 4 is used to realize the disconnection, connection, and conversion of different transfer platforms 5 entering the rail, which greatly simplifies the design difficulties of the multiple transfer platform rail system. The multiple transfer platforms 5 structure configured in the press 1 can completely get rid of the limitation of the number of workshop space overhead crane auxiliary lifting and transfer platform applications, and can be expanded to realize the application of at least three sets of transfer platforms 5 configured in a single press 1, which is of great significance to improving the application level of industry equipment and promoting the progress of turnout processing technology.

[0040] During the design: the radial rotary conveying mechanism 4 needs to be used to ensure the safety and stable conveying of the mold tooling on the large-tonnage displacement platform 5 under the load-bearing state; on the other hand, it is also necessary to ensure the docking control accuracy of different displacement platforms 5 entering and exiting different rails, so that the large-tonnage displacement platform can move smoothly under the mold load state without slipping, freezing, breaking teeth, breaking rods, motor overload, etc. To achieve the above functions, please refer to the following structural improvements of the present invention:

[0041] Radial rotary conveying mechanism of the press platform for forging production of special-shaped rails (combined with Figure 4 See also Figure 5 The radial rotary conveying mechanism 4 (shown in the figure) includes a servo motor 41, a radial horizontal rotation reduction transmission mechanism 42, a rail load-bearing mounting base 43, and a common rail 44.

[0042] The upper end surface of the rail load-bearing mounting base 43 is welded and fixed with a common rail 44 with a parallel interval; the interval between the common rails 44 and the interval between the press station rails 2 and the transfer station rails 3 are equal to the interval between the press station rails 2 and the transfer station rails 3, so as to accurately connect and adapt to the press station rails 2 and the transfer station rails 3 (such as Figure 1 , Figure 2 , Figure 3 The servo motor 41 is fixedly mounted on the lower end surface of the rail load-bearing mounting base 43 (combined with Figure 6); the power output end of the servo motor 41 is connected to the power input end of the radial horizontal rotation reduction transmission mechanism 42, and the power output end of the radial horizontal rotation reduction transmission mechanism 42 drives the rail load-bearing mounting base 43 to rotate horizontally. That is, the servo motor 41 drives the rail load-bearing mounting base 43 to rotate radially on a fixed axis through the radial horizontal rotation reduction transmission mechanism 42. Specifically, the radial horizontal rotation reduction transmission mechanism 42 includes a reducer, a bevel gear transmission mechanism or a non-bevel gear transmission mechanism. The power output end of the servo motor 41 is connected to the power input end of the reducer, and the power output end of the reducer is coaxially fixedly connected to the transmission shaft. The transmission shaft is rotatably supported and installed at the bottom of the rail load-bearing mounting base 43 in the shaft seat through the shaft seat and the bearing member in the shaft seat; the servo motor 41 drives the transmission shaft to rotate at a low speed, and the transmission shaft is coaxially fixedly installed with the bevel gear or gear of the bevel gear transmission mechanism or the non-bevel gear transmission mechanism, and the bevel gear or gear meshes with the radial rack to realize the servo motor driving and driving the radial rotation of the rail load-bearing mounting base 43.

[0043] The present invention adopts a servo motor 41 to drive and a radial horizontal rotation reduction transmission mechanism 42 to reduce speed to realize the horizontal rotation of the rail load-bearing mounting base 43, and can realize the controllability of the radial rotary conveying mechanism 4 to control the rotation of the moving platform with high precision. The rotation accuracy of the radial rotary conveying mechanism 4 can be controlled within ±0.5°, the signal delay is less than 10mS, and the control is precise and reliable.

[0044] In the above embodiment, further: the radial horizontal rotation reduction transmission mechanism 42 is composed of a shaft seat 421, a transmission shaft 422, a worm gear transmission mechanism 423, a bevel gear 424, and a radial bevel rack 425.

[0045] Among them, the transmission shaft 422 is rotatably supported and installed at the bottom of the rail load-bearing mounting base 43 through the shaft seat 421 and the bearing member in the shaft seat 421; the transmission shaft 422 is driven by the servo motor 41, and the worm gear transmission mechanism 423 drives the transmission shaft 422 to rotate by reduction transmission. Specifically: the power output shaft of the servo motor 41 is coaxially fixedly connected to the worm in the worm gear transmission mechanism 423, the worm meshes with the worm wheel, the worm wheel and the shaft body of the transmission shaft 422 are coaxially fixedly connected as a whole, and the reduction function is realized through the worm gear transmission mechanism 423, and the self-locking function of the transmission shaft 422 after the servo motor stops running. On this basis, the shaft end of the transmission shaft 422 is installed with a bevel gear 424, and the bevel gear 424 meshes with the radial bevel rack 425 of the annular structure below the rail load-bearing mounting base 43 to drive the rail load-bearing mounting base 43 to rotate horizontally and radially. The radial bevel rack 425 is a ring bevel gear structure. This solution adopts a bevel gear 424 meshing with a radial bevel rack 425, which has a centripetal transmission function, thereby ensuring that the radial rotary conveying mechanism 4 can rotate stably by self-centering.

[0046] Moreover, the present invention reduces speed through the worm gear transmission mechanism 423, and the bevel gear 424 meshes with the radial bevel rack 425 to realize the horizontal rotation of the rail load-bearing mounting base 43. Compared with the reducer or the reduction box, the worm gear transmission mechanism 423 can not only realize the deceleration function of the transmission shaft 422, but also has a self-locking function, so that the radial rotary conveying mechanism 4 is naturally locked in position after high-precision rotation and stopping, effectively preventing the deviation and misalignment of the connected rail position after successful docking.

[0047] In the above embodiment, further: to ensure the load stability during the horizontal centering rotation of the radial rotary conveying mechanism 4: the transmission shaft 422 has two, and the two transmission shafts 422 are respectively cross-intersected and rotatably supported and installed in the bottom space of the rail load-bearing mounting base 43. The structure of two cross-intersecting transmission shafts 422 is improved compared with one transmission shaft 422 combined with the following structure, which can achieve uniform and stable power transmission and avoid the bump problem when the rail load-bearing mounting base 43 rotates.

[0048] In the above embodiment, further: the shaft seat 421 is cylindrical in shape; the shaft seat 421 is concentrically and vertically fixedly installed at the bottom of the rail load-bearing mounting base 43; not only that: the shaft seat 421 with a cylindrical shape also provides a centering function for the horizontal radial rotation of the rail load-bearing mounting base 43. Specifically: a bearing member is installed in the body of the shaft seat 421, and the bearing member supports the middle part of the shaft body of the transmission shaft 422, so that the transmission shaft 422 is centered on the shaft seat 421, and the transmission shaft 422 is rotated and supported in the shaft seat 421.

[0049] On this basis, the bottom end of the shaft seat 421 with a cylindrical shape is used for coaxial rotation and adapting to the center of the base structure (not shown in the base structure diagram), and the base structure provides a concentric guide for the horizontal radial rotation of the rail load-bearing mounting base 43, so that the rail load-bearing mounting base 43 can be centered and stably rotated. Therefore, the shaft seat 421 with a cylindrical shape, the coordinated phase gear 424, and the radial bevel rack 425 work together to effectively improve the self-centering rotation of the radial rotary conveying mechanism 4 and ensure the rotation stability of the radial rotary conveying mechanism 4.

[0050] (like Figure 6As shown in the figure, on this basis: the servo motors 41 are provided with two, and the two servo motors 41 drive each transmission shaft 422 to rotate through the worm gear mechanism 423 from the middle of each transmission shaft 422. That is, the power output shaft of each servo motor 41 is coaxially fixedly connected to the worm in the worm gear transmission mechanism 423, the worm meshes with the worm wheel, and the worm wheel is coaxially fixedly connected with the shaft body of the transmission shaft 422 as a whole. The outer ends of the two vertical transmission shafts 422 are coaxially fixedly installed with bevel gears 424; the four bevel gears 424 are respectively meshed with radial bevel racks 425 at four points evenly distributed in the radial direction to drive the horizontal radial anti-bumping rotation of the rail load-bearing mounting base 43.

[0051] It can be seen that the two transmission shafts 422 of the present invention are respectively installed in a cross-intersecting rotation support at the bottom space of the rail load-bearing mounting base 43, and the two ends of the outer shaft ends of each transmission shaft 422 are respectively coaxially fixedly installed with bevel gears 424; therefore, a total of four bevel gears 424 respectively engage the radial bevel racks 425 from four radially evenly distributed points to drive the horizontal radial rotation of the rail load-bearing mounting base 43. Compared with the structural design of a bevel gear transmission, the four-point evenly distributed support transmission allows the horizontal rotation of the rail load-bearing mounting base 43 in the radial rotary conveying mechanism 4 to run more smoothly and avoid the occurrence of bumps.

[0052] In the above embodiment, further: since the weight of the moving platform 5 after the mold tooling is installed is basically above the tonnage level, in order to meet the large tonnage carrying capacity requirements, the radial rotary conveying mechanism 4 is also improved in the design as follows: that is, a plurality of road wheel groups 45 are respectively provided on the transmission shaft 422; as shown in the preferred embodiment, four axially symmetrical and evenly distributed road wheel groups 45 are respectively provided on the two transmission shafts 422, and the four road wheel groups 45 evenly distributed on each transmission shaft 422 constitute a total of eight road wheel groups 45, and the eight road wheel groups 45 respectively share the weight of the rail load-bearing mounting base 43 to meet the large load requirements of the rail load-bearing mounting base 43. The aforementioned bevel gear 424 does not bear the weight of the base, and the bevel gear 424 only provides a centripetal meshing power transmission guide for the rotation of the rail load-bearing mounting base 43. Avoiding the bevel gear 424 from bearing gravity, that is, avoiding damage to the bevel gear 424 of the main transmission component. Ensure the long-term, long-life, and more durable stable operation of the transmission mechanism.

[0053] It can be seen that the cross-intersecting transmission shafts 422 of the present invention are respectively provided with multiple road wheel groups 45; the multiple road wheel groups 45 share the weight of the rail load-bearing mounting base 43, and the bevel gear 424 only provides a centripetal meshing power transmission guide for the rotation of the rail load-bearing mounting base 43; it solves the problem of how the radial rotary conveying mechanism 4 carries the tonnage-level weight moving platform and the mold tooling on the moving platform, effectively protects the main transmission components from damage, extends the service life of the equipment, and makes the radial rotary conveying mechanism 4 more stable, safe and reliable when carrying the rotational movement of a large-tonnage moving platform.

[0054] In the above embodiment, preferably: the rail load-bearing mounting base 43 is a horizontal box structure, and load-bearing vertical ribs 431 are arranged in the horizontal box, and the load-bearing vertical ribs 431 are evenly distributed in the box in a criss-cross pattern. Specifically, the rail load-bearing mounting base 43 includes an upper disc plate and a lower disc plate, and load-bearing vertical ribs 431 are arranged between the upper and lower disc plates.

[0055] The rail load-bearing mounting base 43 of the present invention adopts cross-shaped evenly distributed load-bearing vertical ribs 431 to support a horizontally supported box structure. The material is easily available, economical and practical, and the structural support is stable. The cross-shaped evenly distributed load-bearing vertical ribs 431 can effectively prevent the box from being compressed and deformed, and make the force distribution of each point on the upper and lower disc plates of the box uniform, so that it can more stably and reliably bear the weight of a large-tonnage transfer table and mold tooling.

[0056] In the above embodiment, further: the portion where the common rail 44 is connected to the press station rail 2 and the transfer station rail 3 is a concentric, same-radius arc-cut structure 441. Specifically: the arc-cut structure 441 of the common rail 44 is symmetrically inclined outwardly along the left and right axes; the arc-cut structure 441 of the press station rail 2 and the transfer station rail 3 is symmetrically inclined inwardly along the left and right axes, and preferably, the inclination angle of the arc-cut structure 441 is 55°. At the same time, in the above embodiment, preferably: the connection gap between the common rail 44 and the connected rail, that is, the gap when connected to the press station rail 2 and the transfer station rail 3 is less than or equal to 1 mm, so as to eliminate the influence of partition transportation.

[0057] It can be seen that the common rail 44 of the present invention adopts a concentric, same-radius arc-cut structure 441 to connect with the press station rail 2 and the transfer platform station rail 3. On the one hand, it provides an avoidance space for the radial angle rotation of the common rail 44 when docking with rails in different directions. On the other hand, it is beneficial to improve the docking accuracy of the transfer platform rail and prevent the occurrence of docking failure problems such as step docking, height and width misaligned docking, and slope docking.

[0058] (like Figure 5 , 7In the above embodiment, further: on the basis of the self-locking function of the worm gear transmission mechanism of the radial rotary conveying mechanism 4, in order to further improve the accuracy, stability and reliability of the rail docking: the common rail 44 in the radial rotary conveying mechanism 4 is installed with a rail guide locking mechanism 6; the rail guide locking mechanism 6 is composed of a cylinder or hydraulic cylinder 61, a locking block 62, and a locking frame 63. The rail guide locking mechanism 6 has four groups, which are respectively arranged at the interface of the common rail 44.

[0059] The air cylinder or hydraulic cylinder 61 is fixedly installed horizontally beside the common rail 44; the piston rod of the air cylinder or hydraulic cylinder 61 is fixedly connected to one end of the horizontally movable locking block 62; the other end of the locking block 62 is plugged and adapted to the locking frame 53, and the locking frame 63 is respectively fixedly installed beside the proximal end of the common rail 44 connection part, and beside the connection part rails of the press station rail 2 and the transfer station rail 3. The air cylinder or hydraulic cylinder 61 pushes the locking block 62 out through its piston rod, and the locking block 62 is successively inserted into the common rail 44, the connected press station rail 2, and the transfer station rail 3 locking frame 63 to achieve the position locking of the connection rails.

[0060] It can be seen that the radial rotary conveying mechanism 4 of the present invention is installed with a rail guide locking mechanism 6, and the cylinder or hydraulic cylinder 61 in the rail guide locking mechanism 6 drives the locking block 62 to telescopically move. When the locking block 62 is extended, it is simultaneously inserted into the locking frame 53 of the common rail 44 and the locking frames 53 of the press station rail 2 and the transfer platform station rail 3, thereby realizing the guiding and positioning locking at the rail docking point, so that the rails are positioned, locked and docked with high precision, reliability and stability, thereby ensuring the stability, safety and reliability of the operation of the transfer platform during transitional conveyance along the rails.

[0061] The working principle of the radial rotary conveying mechanism 4 of the present invention is as follows: the servo motor 41 drives the transmission shaft 422 to rotate through the worm gear transmission mechanism 423, the transmission shaft 422 drives the bevel gear 424 to rotate, the bevel gear 424 engages with the radial bevel rack 425 to drive the rail load-bearing mounting base 43 to rotate, when the rail load-bearing mounting base 43 rotates, the road wheel group 45 realizes its stable rolling support for the bearing capacity of the rail load-bearing mounting base 43, and the cylindrical shaft seat 421 combines with the bevel gear 424 and the radial bevel rack 425 to realize the centripetal and centering rotation of the rail load-bearing mounting base 43; the rail load-bearing mounting base 43 realizes the longitudinal and transverse docking switching of the common rail 44 thereon with the transfer platform station rail 3 and the press station rail 2 through its clockwise and counterclockwise 90° switching rotation, so as to realize the rail connection and transportation of the transfer platform 5 in different directions toward the press station rail 2.

[0062] To sum up, the present invention is used to be arranged at the center of the cross-shaped rail structure, and through the 360° horizontal rotation of the rail load-bearing mounting base, the common rail is driven to rotate, and the rotation switching adjustment of the common rail cross in different directions is realized, and the transportation switching of multiple direction shifting platforms toward the press station rails is realized; it solves the technical problem of low mold change efficiency in the production of complex forging and pressing processes of special-shaped rails, and realizes resource integration; it reduces the cost of press equipment expenditure, compacts and saves the space occupied by the equipment, eliminates the trouble of frequent mold change, hoisting and disassembly operations, improves processing efficiency, and lays the foundation for meeting the continuous expansion of the use needs of complex processes; it simplifies the design problem of matching a single press with multiple shifting platform rail systems to the greatest extent; it is economical, practical, reliable and efficient.

[0063] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. The radial rotary conveying mechanism of the moving platform of the press machine for forging production of special-shaped rails is characterized by: The invention comprises a servo motor (41), a radial horizontal rotation reduction transmission mechanism (42), a rail load-bearing mounting base (43), and a common rail (44); the common rail (44) spaced and parallel to each other is fixedly mounted on the upper end surface of the rail load-bearing mounting base (43); the servo motor (41) is fixedly mounted on the lower end surface of the rail load-bearing mounting base (43); the servo motor (41) drives the rail load-bearing mounting base (43) to rotate radially on a fixed axis through the radial horizontal rotation reduction transmission mechanism (42); The radial horizontal rotation reduction transmission mechanism (42) is composed of a shaft seat (421), a transmission shaft (422), a worm gear transmission mechanism (423), a bevel gear (424), and a radial bevel rack (425); the transmission shaft (422) is rotatably supported and installed at the bottom of the rail load-bearing mounting base (43) through the shaft seat (421); the transmission shaft (422) is driven by a servo motor (41), and the worm gear transmission mechanism (423) drives the transmission shaft (422) to rotate through reduction transmission; a bevel gear (424) is installed at the shaft end of the transmission shaft (422), and the bevel gear (424) meshes with the radial bevel rack (425) below the rail load-bearing mounting base (43) to drive the rail load-bearing mounting base (43) to rotate horizontally and radially; There are two transmission shafts (422), which are cross-intersected and rotatably supported in the bottom space of the rail load-bearing mounting base (43); there are two servo motors (41), which drive each transmission shaft (422) to rotate from the middle of each transmission shaft (422) through a worm gear transmission mechanism (423); bevel gears (424) are coaxially fixedly mounted on both ends of the outer shaft ends of the transmission shaft (422); the four bevel gears (424) simultaneously mesh with radial bevel racks (425) from four radially evenly distributed points to drive the rail load-bearing mounting base (43) to rotate horizontally and radially; The transmission shaft (422) is provided with a plurality of road wheel assemblies (45); the plurality of road wheel assemblies (45) share the weight of the rail load-bearing mounting base (43); the bevel gear (424) does not bear the weight of the base; the bevel gear (424) only provides a centripetal meshing power transmission guide for the rotation of the rail load-bearing mounting base (43); The portion where the common rail (44) is connected is a concentric, same-radius arc-cut structure (441).

2. According to claim 1, the radial rotary conveying mechanism for the moving platform of the special-shaped rail forging press is characterized by: The shaft seat (421) has a cylindrical structure in appearance; the shaft seat (421) is coaxially and vertically fixedly mounted on the bottom of the rail load-bearing mounting base (43); the shaft seat (421) provides a concentric guide for the horizontal radial rotation of the rail load-bearing mounting base (43).

3. The radial rotary conveying mechanism for the moving platform of the special-shaped rail forging press according to claim 1 or 2, characterized in that: The rail load-bearing mounting base (43) is a horizontal box structure, and load-bearing vertical ribs (431) are arranged in the horizontal box. The load-bearing vertical ribs (431) are evenly distributed in the box in a crisscross pattern.

4. According to claim 1, the radial rotary conveying mechanism for the moving platform of the special-shaped rail forging press is characterized by: The common rail (44) is provided with a rail guide locking mechanism (6); the rail guide locking mechanism (6) is composed of a cylinder or a hydraulic cylinder (61), a locking block (62), and a locking frame (63); the cylinder or the hydraulic cylinder (61) is horizontally fixedly installed beside the common rail (44); the piston rod of the cylinder or the hydraulic cylinder (61) is fixedly connected to one end of the locking block (62) which moves horizontally; the other end of the locking block (62) is plug-fitted with the locking frame (63); the locking frame (63) is horizontally fixedly installed in a collinear manner beside the common rail (44) and beside the connected rail.

5. The radial rotary conveying mechanism for the moving platform of the special-shaped rail forging press according to claim 1 or 4, characterized in that: The connection gap between the common rail (44) and the connected rail is less than or equal to 1 mm.

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