A processing device for tubular forgings

Abstract

The present invention discloses a processing device for cylindrical forgings, which includes two support arms connected to an operating machine and a rotary support column. The two support arms are arranged horizontally and parallel to each other, and the rotary support column is horizontally arranged between the two support arms. A first cleaning mechanism is provided on the support arms. The first cleaning mechanism includes an arc-shaped box body and a rotating part. The inner arc wall of the arc-shaped box body faces the side wall of the rotary support column, and a plurality of nozzles are evenly arranged on the inner arc wall. A first joint for connecting to a high-pressure air flow conveying pipe is provided at the bottom of the arc-shaped box body. The rotating part includes a connecting frame, two arc-shaped guide rails, a first rack, a return spring, and a gear transmission assembly. The present invention can realize the function of automatically cleaning the scale generated during the forging and forming process of the cylindrical forgings through the provided first cleaning mechanism. The first cleaning mechanism is realized by using an arc-shaped box body and a rotating part, and can realize rotating purging operation, effectively covering the surface area of the cylindrical forgings and improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of forging processing, and specifically to a processing device for tubular forgings. Background Art

[0002] Tubular forgings are mechanical components made through forging processes, featuring high strength, high toughness, and high wear resistance. They are widely used in large-scale mechanical equipment, lifting equipment, metallurgy, chemical engineering, engineering, marine shipbuilding, and aerospace, etc., mainly serving as slewing bearings or guides.

[0003] During the production process of tubular forgings, a forging hammer is required to forge the outer surface of the metal blank of the tubular forging to shape it and improve its strength and toughness. When performing forging operations on large tubular forgings, these tubular forgings are usually transported and sleeved on a rotary support column connected to a forging manipulator. By controlling the small-angle rotation of the rotary support column, relying on the gravity of the tubular forging itself and the friction between the inner circumferential surface of the tubular forging and the support column, the tubular forging is driven to rotate with the rotary support column, thereby adjusting different forging positions of the tubular forging.

[0004] During the forging process of tubular forgings, due to the action of high temperature and mechanical force on the metal, a layer of scale will form on the surface. Some of the formed scale will fall off automatically during the rotation of the tubular forging itself, while the other part will adhere to the surface of the tubular forging. This part of the adhered and un-shed scale will move back under the forging hammer as the tubular forging rotates. With the repeated forging of the forging hammer, this part of the scale will be pressed into the surface of the tubular forging again, making the surface of the tubular forging rougher, thus affecting the surface quality of the tubular forging and making it difficult to meet the processing requirements. Therefore, it is necessary to promptly remove this part of the adhered and un-shed scale.

[0005] At present, the cleaning process of the scale generated by forgings is mainly divided into two methods: automated cleaning and manual cleaning. Automated cleaning uses mechanical or chemical means to remove the scale. Specifically, mechanical removal refers to relying on a rotating grinding wheel or cleaning roller to polish and remove the scale on the surface of cylindrical forgings. Chemical removal refers to using pickling operations to dissolve and remove the scale. However, these automated cleaning operations usually need to be carried out after the forging operation on the forgings is completed, and cannot be removed during the forging process. For the forging process of cylindrical forgings, there is still a problem that the scale cannot be effectively and timely removed, so that the scale will be pressed into the surface again following the rotating cylindrical forgings. Manual cleaning is usually carried out during the forging operation. By manually holding a high-pressure blowing device or a scraping device, the scale generated on the surface of the rotating cylindrical forgings is timely removed. However, manual cleaning operations require continuous adjustment of the cleaning area and cleaning angle, which undoubtedly increases the labor intensity. Moreover, when the worker is in a dangerous forging environment, noise, high temperature, and the scale particles splashing during the hammering process will all pose hazards to human health. Summary of the Invention

[0006] The purpose of the present invention is to provide a processing device for cylindrical forgings to solve the problem that it is difficult to automatically clean the scale generated on the surface of cylindrical forgings in a timely manner during the forging and forming operation of large cylindrical forgings.

[0007] The technical solution of the present invention is as follows:

[0008] A processing device for cylindrical forgings, comprising two support arms connected to an operating machine and a rotary support column. The two support arms are arranged horizontally and parallel to each other. The rotary support column is horizontally arranged between the two support arms. A first cleaning mechanism is provided on the support arm. The first cleaning mechanism includes an arc-shaped box body and a rotating part. The inner arc wall of the arc-shaped box body faces the side wall of the rotary support column, and a plurality of nozzles are evenly distributed on the inner arc wall. A first joint for connecting to a high-pressure air flow conveying pipe is provided at the bottom of the arc-shaped box body. The rotating part includes a connecting frame, two arc-shaped guide rails, a first rack, a return spring, and a gear transmission assembly. The connecting frame is connected to the support arm. The two arc-shaped guide rails are arranged on both sides of the arc-shaped box body and are slidably connected to the side walls of the arc-shaped box body. The two arc-shaped guide rails are both fixed to the connecting frame. A plurality of meshing teeth are evenly distributed on the outer arc wall of the arc-shaped box body between the two arc-shaped guide rails. The first rack is arranged on the opposite side of the plurality of meshing teeth. A connecting component for detachably connecting to the side wall of the forging hammer is provided at the top of the first rack. The return spring is arranged at the bottom of the first rack and is connected to the first rack and the connecting frame at both ends respectively. The gear transmission assembly is meshingly connected between the first rack and the plurality of meshing teeth, and is used for converting the reciprocating vertical movement process of the first rack into the reciprocating rotation process of the arc-shaped box body when the first rack moves up and down following the forging hammer through the connecting component.

[0009] Preferably, as a further improvement of the present invention, the connecting component includes a moving rod, a hollow screw, a plug rod, and a turning handle. One end of the moving rod is fixed to the top of the first rack. A threaded hole is opened on the side wall of the moving rod. The hollow screw is threadedly connected to the threaded hole opened on the moving rod. The plug rod is fixed to the side wall of the forging hammer and is arranged opposite to the hollow screw. The turning handle is fixed to the end of the hollow screw facing away from the plug rod.

[0010] Preferably, as a further improvement of the present invention, the connecting frame includes a sliding sleeve, two connecting plates, and a bottom plate. The sliding sleeve is slidably sleeved on the support arm. The two connecting plates are arranged in parallel. One end of the two connecting plates is fixed to the side wall of the sliding sleeve. The other ends of the two connecting plates are respectively fixed to the two arc-shaped guide rails. The bottom plate is fixed to the bottom of the two connecting plates. The end of the return spring away from the first rack is connected to the bottom plate.

[0011] Preferably, as a further improvement of the present invention, the gear transmission assembly includes a first gear and a second gear. The first gear and the second gear are both rotatably mounted between the two connecting plates through gear shafts. One side of the first gear is meshed with the first rack. The other side of the first gear is meshed with one side of the second gear. The other side of the second gear is meshed with the plurality of meshing teeth.

[0012] Preferably, as a further improvement of the present invention, a strip-shaped notch is formed in the support arm along its length direction, a linear movement mechanism is arranged in the strip-shaped notch, the output end of the linear movement mechanism is connected with a sliding seat for driving the sliding seat to move in the strip-shaped notch, and a clamping assembly for clamping cylindrical forgings is arranged on one side of the sliding seat facing the rotary support column.

[0013] Preferably, as a further improvement of the present invention, the clamping assembly includes a first motor, a bidirectional lead screw and two clamping jaws. The first motor is fixed on the side wall of the sliding seat away from the linear movement mechanism. One end of the bidirectional lead screw is connected with the output shaft of the first motor. An installation opening is formed inside the sliding seat. The other end of the bidirectional lead screw extends into the installation opening and is rotatably connected with the inner wall of the installation opening. Nut seats are respectively connected to both sides of the bidirectional lead screw. The two clamping jaws are respectively fixedly connected to the side walls of the two nut seats facing the rotary support column. The sliding sleeve is located between the two clamping jaws.

[0014] Preferably, as a further improvement of the present invention, the rotary support column includes a rotary drive part and a support column body. The rotary drive part includes a second motor, a third gear, a rotating shaft and a fourth gear. The second motor is fixed on the mounting bracket. The mounting bracket is connected with the manipulator. The third gear is sleeved and fixed on the output shaft of the second motor. The rotating shaft is arranged below the second motor. One end of the rotating shaft is rotatably connected with the mounting bracket. The fourth gear is sleeved and fixed on the rotating shaft. The fourth gear meshes with the third gear. One end of the support column body is coaxially fixed with the rotating shaft.

[0015] Preferably, as a further improvement of the present invention, a second cleaning assembly is arranged on the support column body. The second cleaning assembly includes an air delivery channel, a second joint and a plurality of spray holes. One end of the rotating shaft away from the support column body extends to the outside of the mounting bracket. The air delivery channel is formed at the center of the rotating shaft and the support column body and penetrates through the rotating shaft. The second joint is arranged on one side of the air delivery channel at the end of the rotating shaft for connecting with a high-pressure air flow conveying pipe. A conical surface is arranged at the end of the support column body away from the rotating shaft. A plurality of spray holes are formed around the conical surface and communicated with the air delivery channel.

[0016] Preferably, as a further improvement of the present invention, the spray holes are conical holes, and the caliber of the spray holes at the conical surface is larger than that at the air delivery channel.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The first cleaning mechanism can automatically clean the scale generated during the forging process of tubular forgings in a timely manner. Compared with manual cleaning, it reduces the labor intensity and avoids the problem of potential health hazards in manual cleaning.

[0019] 2. The first cleaning mechanism is realized by an arc-shaped box body and a rotating part. Multiple nozzles arranged on the arc-shaped box body spray high-pressure air flow to blow and remove the scale generated during the forging of tubular forgings in a timely manner. The rotating part drives the arc-shaped box body to rotate reciprocally, which can continuously change the blowing angle. Compared with single-angle blowing, it can not only more effectively cover the surface area of tubular forgings, but also reduce the problem of incomplete cleaning caused by some cleaning dead corners when there are uneven areas on the surface of tubular forgings.

[0020] 3. The rotating part relies on the forging hammer in the hydraulic forging machine as the power driving source, and drives the arc-shaped box body to rotate synchronously with the lifting of the forging hammer. This can not only reduce production costs, but also avoid the problem of damage to the arc-shaped box body caused by being struck by the forging hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a perspective structural view of a tubular forging processing device of the present invention from the first perspective.

[0022] Figure 2 FIG. 2 is a perspective structural view of a tubular forging processing device of the present invention from the second perspective.

[0023] Figure 3 FIG. 3 is a structural view of the rotating part in a tubular forging processing device of the present invention.

[0024] Figure 4 FIG. 4 is a top view structural view of a tubular forging processing device of the present invention.

[0025] Figure 5 For the present invention Figure 4 FIG. 5 is a sectional structural view taken along line A-A in the present invention.

[0026] Figure 6 For the present invention Figure 5 FIG. 6 is a partial enlarged view at position B in the present invention.

[0027] Figure 7 FIG. 7 is a perspective structural view of the spacing adjustment mechanism in a tubular forging processing device of the present invention.

[0028] Figure 8 FIG. 8 is a side view structural view of a tubular forging processing device of the present invention.

[0029] Figure 9This is a first - perspective three - dimensional structural schematic diagram of a cylindrical forging processing device of the present invention during operation.

[0030] Figure 10 This is a second - perspective three - dimensional structural schematic diagram of a cylindrical forging processing device of the present invention during operation.

[0031] Explanation of reference numerals: 1. Support arm; 11. Strip - shaped notch; 2. Rotary support column; 21. Second motor; 22. Third gear; 23. Rotating shaft; 24. Fourth gear; 3. Arc - shaped box body; 31. Nozzle; 32. First joint; 41. Connecting frame; 411. Sliding sleeve; 412. Connecting plate; 413. Bottom plate; 42. Arc - shaped guide rail; 43. Meshing teeth; 44. First rack; 45. Return spring; 46. Gear transmission assembly; 461. First gear; 462. Second gear; 51. Moving rod; 52. Hollow screw; 53. Insert rod; 54. Rotating handle; 61. Linear moving mechanism; 62. Slide block; 63. Clamping assembly; 631. First motor; 632. Bi - directional lead screw; 634. Claw; 7. Mounting frame; 81. Air - conveying channel; 82. Second joint; 83. Spray hole; 91. Mounting plate; 92. Fixed frame; 93. First connecting rod; 94. Second connecting rod; 95. Cylinder block; 951. In - and - out liquid channel; 952. Interface; 96. Piston; 97. Piston rod; 98. Second rack; 99. Incomplete gear. Detailed implementation manners

[0032] The following combines the attached Figure 1 to the attached Figure 10 drawings to describe the detailed implementation manners of the present invention in detail. In the description of the invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention.

[0033] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the invention, unless otherwise specified, the meaning of "plural" is two or more.

[0034] Embodiment

[0035] As Figures 1 to 10As shown in the figure, an embodiment of the present invention provides a processing device for cylindrical forgings, which includes two support arms 1 connected to an operating machine and a rotary support column 2. The two support arms 1 are horizontally arranged in parallel, and the rotary support column 2 is horizontally arranged between the two support arms 1. A first cleaning mechanism is provided on the support arm 1. The first cleaning mechanism includes an arc-shaped box body 3 and a rotating part. The inner arc wall of the arc-shaped box body 3 faces the side wall of the rotary support column 2, and a plurality of nozzles 31 are evenly distributed on the inner arc wall. A first joint 32 for connecting to a high-pressure air flow conveying pipe is provided at the bottom of the arc-shaped box body 3. The rotating part includes a connecting frame 41, two arc-shaped guide rails 42, a first rack 44, a return spring 45 and a gear transmission assembly 46. The connecting frame 41 is connected to the support arm 1. The two arc-shaped guide rails 42 are arranged on both sides of the arc-shaped box body 3 and are slidably connected to the side walls of the arc-shaped box body 3. The two arc-shaped guide rails 42 are both fixed to the connecting frame 41. A plurality of meshing teeth 43 are evenly distributed on the outer arc wall of the arc-shaped box body 3 between the two arc-shaped guide rails 42. The first rack 44 is arranged on the opposite side of the plurality of meshing teeth 43. A connecting component for detachably connecting to the side wall of the forging hammer is provided at the top of the first rack 44. The return spring 45 is arranged at the bottom of the first rack 44 and is connected to the first rack 44 and the connecting frame 41 at both ends respectively. The gear transmission assembly 46 is meshingly connected between the first rack 44 and the plurality of meshing teeth 43, and is used for converting the reciprocating vertical movement process of the first rack 44 into a reciprocating rotation process of the arc-shaped box body 3 when the first rack 44 moves up and down following the forging hammer through the connecting component.

[0036] In this embodiment, the first cleaning mechanism can automatically clean the scale generated during the forging process of cylindrical forgings. The whole device is arranged on the manipulator. During forging, the cylindrical forging to be forged is placed on the rotary support column 2. The manipulator moves the cylindrical forging under the hydraulic forging machine. The first rack 44 is connected to the side wall of the forging hammer through the connecting component. When the forging hammer reciprocates up and down to hammer the cylindrical forging, the first rack 44 moves synchronously with the forging hammer through the connecting component. During the movement of the first rack 44, a plurality of meshing teeth 43 arranged on the arc-shaped box body 3 are driven by the gear transmission component 46, so that the arc-shaped box body 3 can reciprocally rotate along the arc-shaped guide rail 42 in an arc trajectory. By connecting the first joint 32 arranged at the bottom of the arc-shaped box body 3 to the external high-pressure air delivery pipe, the booster pump is used to transport the high-pressure air into the arc-shaped box body 3 and spray it out through a plurality of nozzles 31, so as to timely clean the scale generated on the outer circumferential surface of the cylindrical forging after forging. Since the rotary support column 2 drives the cylindrical forging to rotate a certain angle in one direction after each hammering operation of the forging hammer, and the rotation of the arc-shaped box body 3 is bidirectional and reciprocating, when using purging to clean the scale on the cylindrical forging, the purging angle can be continuously changed, which can not only more effectively cover the surface area of the cylindrical forging, but also clean some scale that is difficult to be removed in the dead corner area with uneven surface of the cylindrical forging.

[0037] Specifically, as an optional implementation manner of the connecting component, the connecting component in this embodiment includes a moving rod 51, a hollow screw 52, a plug rod 53 and a turning handle 54. One end of the moving rod 51 is fixed to the top of the first rack 44. A threaded hole is opened on the side wall of the moving rod 51. The hollow screw 52 is threadedly connected to the threaded hole opened on the moving rod 51. The plug rod 53 is fixed to the side wall of the forging hammer and is arranged opposite to the hollow screw 52. The turning handle 54 is fixed to the end of the hollow screw 52 facing away from the plug rod 53.

[0038] In this embodiment, when connecting or disassembling the first rack 44 to the side wall of the forging hammer through the connecting component, the turning handle 54 is rotated to drive the hollow screw 52 to rotate. Since the hollow screw 52 is threadedly connected to the moving rod 51, the distance between the hollow screw 52 and the plug rod 53 can be adjusted by rotating the hollow screw 52. When it is necessary to connect to the side wall of the forging hammer, the hollow screw 52 is rotated so that the plug rod 53 is inserted into the interior of the hollow screw 52. At this time, when the forging hammer reciprocates up and down, it will move synchronously with the plug rod 53 and the hollow screw 52, and then drive the moving rod 51 and the first rack 44 to move synchronously to drive the arc-shaped box body 3 to rotate. When it is necessary to disconnect from the side wall of the forging hammer, the hollow screw 52 is rotated in the reverse direction so that the plug rod 53 is disengaged from the interior of the hollow screw 52, thereby separating the two. At this time, unloading and transfer operations can be carried out.

[0039] Furthermore, as Figure 1 and Figure 3 shown, the connecting frame 41 includes a sliding sleeve 411, two connecting plates 412 and a bottom plate 413. The sliding sleeve 411 is slidably sleeved on the support arm 1. The two connecting plates 412 are arranged in parallel. One end of each of the two connecting plates 412 is fixed to the side wall of the sliding sleeve 411. The other ends of the two connecting plates 412 are respectively fixed to the two arc-shaped guide rails 42. The bottom plate 413 is fixed to the bottom of the two connecting plates 412. One end of the return spring 45 away from the first rack 44 is connected to the bottom plate 413. By providing the sliding sleeve 411, the arc-shaped box body 3 can move on the support arm 1, so as to conveniently adjust different purging and cleaning positions.

[0040] Specifically, the gear transmission assembly 46 includes a first gear 461 and a second gear 462. Both the first gear 461 and the second gear 462 are rotatably mounted between the two connecting plates 412 through gear shafts. One side of the first gear 461 meshes with the first rack 44. The other side of the first gear 461 meshes with one side of the second gear 462. The other side of the second gear 462 meshes with a plurality of meshing teeth 43. Through the above arrangement, when the first rack 44 moves up and down, the meshing transmission of the first gear 461 and the second gear 462 is used to drive the arc-shaped box body 3 to rotate, and the arc-shaped box body 3 rotates upward when the forging hammer rises and rotates downward when the forging hammer descends, thus avoiding the problem that the arc-shaped box body 3 is damaged by being struck by the forging hammer.

[0041] Furthermore, a strip-shaped notch 11 is formed in the support arm 1 along its length direction. A linear movement mechanism 61 is arranged in the strip-shaped notch 11. The output end of the linear movement mechanism 61 is connected to a sliding seat 62 for driving the sliding seat 62 to move in the strip-shaped notch 11. One side of the sliding seat 62 facing the rotary support column 2 is provided with a clamping assembly 63 for clamping cylindrical forgings. Through the cooperation of the provided linear movement mechanism 61 and the clamping assembly 63, the different positions of the cylindrical forgings in the axial direction of the rotary support column 2 can be adjusted, so as to adjust the different hammering positions of the cylindrical forgings along their length directions, and the forging forming operation of the whole cylindrical forgings can be realized.

[0042] Specifically, the clamping assembly 63 includes a first motor 631, a bidirectional lead screw 632 and two jaws 634. The first motor 631 is fixed to the side wall of the sliding seat 62 away from the linear movement mechanism 61. One end of the bidirectional lead screw 632 is connected to the output shaft of the first motor 631. An installation opening is formed inside the sliding seat 62. The other end of the bidirectional lead screw 632 extends into the installation opening and is rotatably connected to the inner wall of the installation opening. Nut seats 633 are respectively connected to both sides of the bidirectional lead screw 632. The two jaws 634 are respectively fixedly connected to the side walls of the two nut seats 633 facing the rotary support column 2. The sliding sleeve 411 is located between the two jaws 634.

[0043] The clamping assembly 63 in this embodiment can achieve the centering clamping function. The first motor 631 drives the bidirectional lead screw 632 to rotate, driving the two nut seats 633 to move closer or farther away synchronously, and then driving the two jaws 634 to move synchronously, enabling the clamping function for both ends of the cylindrical forging. Through the adjustment of the linear movement mechanism 61, the cylindrical forging can be driven to move axially along the rotary support column 2, thereby adjusting the forging position of the cylindrical forging. And since the sliding sleeve 411 is located between the two jaws 634, the fixed position of the sliding sleeve 411 will not be disturbed when the forging position of the clamped sleeve forging is adjusted and moved, thus ensuring that the sliding sleeve 411 and the arc-shaped box body 3 remain in their current positions, and purging and cleaning the forging part. When the forging is completed, first, the first rack 44 is separated from the side wall of the forging hammer through the connecting assembly, so that the position of the sliding sleeve 411 is no longer locked. Then, the linear movement mechanism 61 drives the two jaws 634 and the cylindrical forging to move translationally, and the cylindrical forging is unloaded from the rotary support column 2. During this process, the jaw 634 will push the sliding sleeve 411 to slide on the support arm 1, avoiding movement interference between the two.

[0044] Specifically, as Figure 2 shown, as several alternative embodiments of the linear movement mechanism 61, the linear movement mechanism 61 is a horizontally arranged multi-stage hydraulic cylinder or multi-stage electric cylinder. The cylinder body of the multi-stage hydraulic cylinder or the cylinder body of the multi-stage electric cylinder is fixed to the inner wall of the mounting port, and the telescopic rod end of the multi-stage hydraulic cylinder or the telescopic rod end of the multi-stage electric cylinder is fixed to the side wall of the sliding seat 62.

[0045] Specifically, as Figure 1 shown, the rotary support column 2 includes a rotary drive part and a support column body 25. The rotary drive part includes a second motor 21, a third gear 22, a rotating shaft 23, and a fourth gear 24. The second motor 21 is fixed on the mounting frame 7, and the mounting frame 7 is connected to the manipulator. The third gear 22 is sleeved and fixed on the output shaft of the second motor 21. The rotating shaft 23 is arranged below the second motor 21. One end of the rotating shaft 23 is rotatably connected to the mounting frame 7. The fourth gear 24 is sleeved and fixed on the rotating shaft 23, and the fourth gear 24 meshes with the third gear 22. One end of the support column body 25 is coaxially fixed to the rotating shaft 23.

[0046] When driving the cylindrical forging to rotate through the rotary support column 2, by controlling the second motor 21 to drive the third gear 22 to rotate, since the third gear 22 meshes with the fourth gear 24, the rotating shaft 23 will be driven to rotate synchronously, and then the support column body 25 will be driven to rotate through the rotating shaft 23, realizing the rotation adjustment process of the cylindrical forging.

[0047] In another embodiment of the present invention, as Figure 1 and Figure 5As shown in the figure, when considering forging operations, not only will scale form on the outer wall of tubular forgings, but also a small amount of scale will form on the inner wall of tubular forgings due to the supporting reaction force of the support column 25 during forging. Therefore, in order to still be able to clean the scale on the inner wall of tubular forgings after forging and reduce the cleaning operation process, a second cleaning component is also provided on the support column 25. The second cleaning component includes an air delivery channel 81, a second joint 82, and a plurality of spray holes 83. One end of the rotating shaft 23 away from the support column 25 extends to the outside of the mounting bracket 7. The air delivery channel 81 is opened at the center of the rotating shaft 23 and the support column 25 and penetrates through the rotating shaft 23. The second joint 82 is arranged on one side of the air delivery channel 81 at the end of the rotating shaft 23 for connecting with a high-pressure air delivery pipe. One end of the support column 25 away from the rotating shaft 23 is provided with a conical surface, and a plurality of spray holes 83 are circumferentially opened on the conical surface and communicated with the air delivery channel 81.

[0048] In this embodiment, by connecting the second joint 82 provided with the high-pressure air delivery pipe, after the forging and forming operation of the tubular forging, when using the two clamping jaws 634 to clamp the tubular forging and translate and unload it from the support column 25, high-pressure air is conveyed through the air delivery channel 81 and ejected from a plurality of spray holes 83. The plurality of spray holes 83 will blow the high-pressure air into the inner wall of the tubular forging, and as the tubular forging moves, the entire inner wall thereof is purged and cleaned.

[0049] Furthermore, as Figure 5 shown, the spray hole 83 is a conical hole, and the diameter of the spray hole 83 at the conical surface is larger than the diameter at the air delivery channel 81. By setting the spray hole 83 as a conical hole, the range of the high-pressure air ejected from the spray hole 83 can be expanded, so that the scale generated on the entire inner wall of the tubular forging can be purged and removed.

[0050] Among them, in order to be able to adjust the horizontal distance between the two support arms 1 to realize the clamping and purging and cleaning operations of tubular forgings with different diameters, a distance adjusting mechanism is provided between the two support arms 1, as Figure 1 、 Figure 5 、 Figure 6 and Figure 7 shown. The distance adjusting mechanism includes a support structure, two parallel four-link swing arm structures, and a driving structure. The support structure includes two mounting plates 91 and a fixing frame 92. The two mounting plates 91 are horizontally arranged on the upper and lower sides of the rotating shaft 23. One side of the fixing frame 92 is fixed to the mounting bracket 7, and the other side of the fixing frame 92 is fixed to the two mounting plates 91. The two parallel four-link swing arm structures are symmetrically arranged on both sides of the rotating shaft 23 and connected between the two mounting plates 91. One end of the support arm 1 is connected to the parallel four-link swing arm structure, and the driving structure is connected to each parallel four-link swing arm structure for driving each four-link swing arm structure to perform translational swinging.

[0051] Further, the parallelogram swing arm structure includes two first linkages 93 and two second linkages 94. The two first linkages 93 are horizontally arranged in parallel, and one end of each of the two first linkages 93 is hinged between two mounting plates 91 through a hinge shaft. The two second linkages 94 are respectively arranged in parallel on the upper and lower sides of the two first linkages 93, and both ends of the two second linkages 94 are respectively hinged to the other ends of the two first linkages 93 through hinge shafts. One end of the support arm 1 is fixed to the side walls of the two second linkages 94, and the output end of the driving structure is connected to one end of one of the first linkages 93. The driving structure is used to drive the first linkage 93 to rotate around its hinge point with the mounting plate 91. Refer to Figure 7 , the two first linkages 93 form two swing rods that swing in parallel in the parallelogram swing arm structure, and the hinge shafts where the ends of the two first linkages 93 are hinged to the mounting plate 91 form the frame of the parallelogram swing arm structure. The two second linkages 94 are restricted by the other ends of the two first linkages 93 and form translation rods parallel to the frame. In this way, when the driving structure drives the first linkage 93 to rotate around its hinge point with the mounting plate 91, a parallel swing process will be realized, thereby ensuring that the support arm 1 can be driven to perform translational movement.

[0052] Specifically, as an optional implementation manner of the driving structure, in this embodiment, the driving structure includes a hydraulic telescopic assembly and two sets of transmission assemblies. The hydraulic telescopic assembly includes a cylinder block 95, a piston 96, a piston rod 97, and a hydraulic driving unit provided on the cylinder block 95. Through holes are provided at both ends of the cylinder block 95. The piston 96 is slidably connected inside the cylinder block 95. One end of the piston rod 97 is fixedly connected to the piston 96, and the other end of the piston rod 97 passes through the through hole and extends to the outside of the cylinder block 95. The piston 96 and the piston rod 97 are of hollow structures. The rotating shaft 23 is arranged inside the piston 96 and the piston rod 97 and is slidably connected to the piston 96 and the piston rod 97. The outer wall of the cylinder block 95 is fixed to the fixing frame 92. The two sets of transmission assemblies are symmetrically arranged on both sides of the piston rod 97. The transmission assembly includes a second rack 98 and an incomplete gear 99. The second rack 98 is fixed to the side wall of the piston rod 97, and the incomplete gear 99 is fixed to the end of the first linkage 93 close to the second rack 98. The incomplete gear 99 meshes with the second rack 98.

[0053] Among them, as shown in Figure 5 and Figure 6 , the hydraulic driving unit includes liquid inlet and outlet channels 951 opened on both sides of the bottom of the cylinder block 95, and an interface 952 is provided at the end of the liquid inlet and outlet channels 951 at the bottom of the cylinder block 95. The interface 952 is connected to an external hydraulic pump through a connecting pipeline, and a high-pressure liquid is provided by the hydraulic pump to drive the piston 96.

[0054] Among them, the piston rod 97 is slidably and sealingly connected to the through hole of the cylinder block 95, and the rotating shaft 23 is slidably and sealingly connected to the through hole of the cylinder block 95 and between the rotating shaft 23 and the piston rod 97, avoiding leakage of the injected hydraulic oil.

[0055] In this embodiment, when driving the four-bar swing arm structure to perform translational swing through the driving structure, the hydraulic driving unit controls the piston 96 to slide in the cylinder block 95. The sliding of the piston 96 drives the piston rod 97 to move synchronously. When the piston rod 97 moves, it drives the second rack 98 to move. Since the second rack 98 meshes with the incomplete gear 99, it can drive the incomplete gear 99 and the first connecting rod 93 to rotate around the hinge shaft, realizing the translational swing process of driving the parallel four-bar swing arm structure. And because the piston 96 and the piston rod 97 are hollow structures, the rotating shaft 23 can directly pass through the piston rod 97, realizing the integration of the entire driving structure on the rotating shaft 23, making the device more compact and reducing the occupied space.

[0056] In summary, the first cleaning mechanism provided by the present invention can realize the function of automatically cleaning the oxide scale generated during the forging and forming process of tubular forgings in a timely manner. The first cleaning mechanism is realized by an arc-shaped box body and a rotating part. High-pressure air is ejected through multiple nozzles provided on the arc-shaped box body to blow and remove the oxide scale generated by forging the tubular forging in a timely manner. The rotating part drives the arc-shaped box body to rotate reciprocally, which can continuously change the blowing angle. Compared with single-angle blowing, it can not only more effectively cover the surface area of the tubular forging, but also reduce the problem of incomplete cleaning caused by some cleaning dead corners when there are uneven areas on the surface of the tubular forging. And the rotating part relies on the forging hammer in the hydraulic forging machine as the power driving source, and drives the arc-shaped box body to rotate synchronously with the lifting of the forging hammer, which can not only reduce the production cost, but also avoid the problem of damage to the arc-shaped box body caused by being hit by the forging hammer.

[0057] The above are only several specific and preferred embodiments of the present invention disclosed. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A cylindrical forging processing device, comprising two support arms (1) connected to a manipulator and a rotatable support column (2), wherein the two support arms (1) are arranged horizontally and in parallel, and the rotatable support column (2) is arranged horizontally between the two support arms (1), characterized in that: The support arm (1) is provided with a first cleaning mechanism, and the first cleaning mechanism comprises: An arc-shaped box body (3), whose inner arc wall is arranged toward the side wall of the rotating support column (2), and a plurality of nozzles (31) are evenly distributed on the inner arc wall, and a first joint (32) for connecting to a high-pressure air flow delivery pipe is provided at the bottom of the arc-shaped box body (3); The rotating part comprises: a connecting frame (41) connected to the supporting arm (1); two arc-shaped guide rails (42) arranged on both sides of the arc-shaped box (3) and slidably connected to the two side walls of the arc-shaped box (3); the two arc-shaped guide rails (42) are fixed to the connecting frame (41); a plurality of meshing teeth (43) are evenly distributed on the outer arc wall of the arc-shaped box (3) located between the two arc-shaped guide rails (42); a first rack (44) arranged on the opposite side of the plurality of meshing teeth (43); the first rack (44) ) is provided at the top of the first rack (44) with a connecting assembly for detachably connecting with the side wall of the forging hammer; a reset spring (45) is arranged at the bottom of the first rack (44), and the two ends are respectively connected to the first rack (44) and the connecting frame (41); a gear transmission assembly (46) is meshedly connected between the first rack (44) and a plurality of meshing teeth (43), and is used to convert the reciprocating vertical movement process of the first rack (44) into the reciprocating rotation process of the arc-shaped box (3) when the first rack (44) moves up and down with the forging hammer through the connecting assembly; The connecting assembly comprises: a moving rod (51), one end of which is fixed to the top of the first rack (44), and a threaded hole is provided on the side wall of the moving rod (51); a hollow screw rod (52) is threadedly connected to the threaded hole provided on the moving rod (51); an insertion rod (53) is fixed to the side wall of the forging hammer and is arranged opposite to the hollow screw rod (52); and a rotating handle (54) is fixed to one end of the hollow screw rod (52) which is opposite to the insertion rod (53); The connecting frame (41) comprises: a sliding sleeve (411) which is slidably mounted on the supporting arm (1); two connecting plates (412) which are arranged in parallel and have one end fixed to the side wall of the sliding sleeve (411) and the other end fixed to the two arc-shaped guide rails (42) respectively; a bottom plate (413) which is fixed to the bottom of the two connecting plates (412), and one end of the return spring (45) which is away from the first rack (44) is connected to the bottom plate (413); The gear transmission assembly (46) comprises a first gear (461) and a second gear (462), wherein the first gear (461) and the second gear (462) are both rotatably mounted between two connecting plates (412) via a gear shaft, one side of the first gear (461) is meshed with the first rack (44), the other side of the first gear (461) is meshed with one side of the second gear (462), and the other side of the second gear (462) is meshed with the plurality of meshing teeth (43).

2. The cylindrical forging processing device according to claim 1, characterized in that: The support arm (1) is provided with a strip-shaped slot (11) along its length direction, a linear motion mechanism (61) is provided in the strip-shaped slot (11), an output end of the linear motion mechanism (61) is connected with a slide seat (62) for driving the slide seat (62) to move in the strip-shaped slot (11), and a clamping assembly (63) for clamping a cylindrical forging is provided on a side of the slide seat (62) facing the rotary support column (2).

3. The barrel forging processing device according to claim 2, characterized in that: The clamping assembly (63) comprises: A first motor (631) is fixed on a side wall of the slide seat (62) away from the linear motion mechanism (61); A bidirectional lead screw (632), one end of which is connected to the output shaft of the first motor (631); a mounting opening is provided inside the slide seat (62); the other end of the bidirectional lead screw (632) extends into the mounting opening and is rotatably connected to the inner wall of the mounting opening; and nut seats (633) are respectively connected to both sides of the bidirectional lead screw (632); The two clamping jaws (634) are respectively fixedly connected to the side walls of the two nut seats (633) facing the rotating support column (2), and the sliding sleeve (411) is located between the two clamping jaws (634).

4. The cylindrical forging processing device according to any one of claims 2 to 3, characterized in that: The rotatable support column (2) comprises: The rotary drive unit comprises a second motor (21), a third gear (22), a rotating shaft (23) and a fourth gear (24), wherein the second motor (21) is fixed on a mounting frame (7), the mounting frame (7) is connected to an operating machine, the third gear (22) is fixedly mounted on an output shaft of the second motor (21), the rotating shaft (23) is arranged below the second motor (21), one end of the rotating shaft (23) is rotatably connected to the mounting frame (7), the fourth gear (24) is fixedly mounted on the rotating shaft (23), and the fourth gear (24) is meshed with the third gear (22); One end of the support column (25) is coaxially fixed to the rotating shaft (23).

5. The barrel forging processing device according to claim 4, characterized in that: The support column (25) is provided with a second cleaning assembly, the second cleaning assembly comprising an air delivery channel (81), a second joint (82) and a plurality of spray holes (83); one end of the rotating shaft (23) away from the support column (25) extends to the outside of the mounting frame (7); the air delivery channel (81) is opened at the center of the rotating shaft (23) and the support column (25) and penetrates the rotating shaft (23); the second joint (82) is arranged on one side of the air delivery channel (81) located at the end of the rotating shaft (23) and is used to be connected to a high-pressure air flow delivery pipe; the end of the support column (25) away from the rotating shaft (23) is provided with a conical surface, and a plurality of spray holes (83) are arranged around the conical surface and are connected to the air delivery channel (81).

6. The barrel forging processing device according to claim 5, characterized in that: The spray hole (83) is a conical hole, and the diameter of the spray hole (83) located at the conical surface is larger than the diameter of the spray hole located at the gas delivery channel (81).

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