Hydraulic motor assembling production line

Abstract

The invention relates to the technical field of hydraulic motors, in particular to a hydraulic motor assembling production line. A hydraulic motor assembly production line comprises a conveying line used for conveying workpieces; the overturning press-fitting station is arranged on the conveying line, and after the overturning press-fitting station conducts primary press-fitting on the workpieces, the workpieces are overturned, and then secondary press-fitting is conducted; and the cover closing and torque hitting station is arranged on the conveying line, the cover closing and torque hitting station is located on the downstream of the overturning press-fitting station, and the cover closing and torque hitting station conducts cover closing and torque hitting on the pressed workpieces. The technical problems that in the prior art, in the hydraulic motor assembling process, repeated carrying is needed, the assembling difficulty is large, and the precision is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic motors, and in particular to a hydraulic motor assembly production line. Background Art

[0002] In the prior art, as the use of hydraulic motors becomes more and more widespread, the assembly of hydraulic motors becomes more and more important. Currently, hydraulic motors are mostly assembled manually or only in individual processes are assembled by special machines. During the assembly operation, parts, semi-finished products or finished products need to be constantly moved, and the structure is moved around on different operating tables, which greatly increases the difficulty of hydraulic motor assembly and reduces assembly accuracy. Summary of the invention

[0003] In order to solve the technical problems in the prior art that the hydraulic motor assembly process requires multiple handling, is difficult to assemble, and has low precision, the present invention provides a hydraulic motor assembly production line that solves the above technical problems.

[0004] In order to solve the above technical problems, the present invention provides a hydraulic motor assembly production line, comprising: A conveyor line, wherein the conveyor line is used to convey the workpiece; A turning and pressing station, wherein the turning and pressing station is arranged on the conveying line, and after the turning and pressing station performs a first pressing on the workpiece, the workpiece is turned over, and then a second pressing is performed; A cover closing and torqueing station, which is arranged on the conveyor line and is located downstream of the flipping and pressing station. The cover closing and torqueing station performs cover closing and torqueing on the workpiece after pressing; The overturning and pressing station comprises: A pressing head, wherein the pressing head presses the workpiece; a first bearing structure, the first bearing structure supporting the workpiece; The clamping and flipping assembly is located between the pressure head and the first supporting structure. The clamping and flipping assembly includes two clamping heads arranged opposite to each other. The two clamping heads are respectively rotatably assembled on two clamping seats. The clamping drive drives the two clamping seats to move synchronously toward or away from each other. The flipping drive drives the two clamping heads to rotate synchronously.

[0005] According to one embodiment of the present invention, two clamping seats are slidably assembled, and a synchronization structure is arranged between the two clamping seats. The synchronization structure includes a rotating connecting plate, and the rotating connecting plate is located in the middle of the two clamping seats. The center of the rotating connecting plate is rotatably assembled, and the two ends of the rotating connecting plate are respectively hinged to the two clamping seats through two connecting rods.

[0006] According to one embodiment of the present invention, the flip driving member drives the two clamping heads to rotate synchronously via a key shaft, and the flip driving member drives the key shaft to rotate. Two sleeves are provided on the key shaft so as to rotate and slide therewith, and the two clamping seats are rotatably connected to the two sleeves respectively, and the sleeves drive the clamping heads to rotate via a sub-transmission assembly.

[0007] According to one embodiment of the present invention, the first bearing structure includes a lifting bearing frame and a lower support seat, the lifting bearing frame includes an upper plate and a lower plate spaced apart from each other, a guide shaft is arranged between the upper plate and the lower plate, the guide shaft is slidably matched with the lower support seat to limit the lifting bearing frame to perform lifting movement, the lifting drive cylinder drives the lifting bearing frame to move, a support column is also vertically arranged below the upper plate, and a pad is installed on the lower support seat, after the lifting bearing frame is lifted, the pad moves horizontally to the bottom of the support column to support the support column.

[0008] According to one embodiment of the present invention, the closing and torqueing station comprises: A torque-applying structure, wherein the torque-applying structure applies torque to the workpiece after the cover is closed; A second bearing structure, the second bearing structure supports the workpiece, and the second bearing structure drives the workpiece to rise, fall and rotate; A pressing piece presses the closed workpiece from above.

[0009] According to one embodiment of the present invention, the second bearing structure includes a support plate and a swivel plate, the swivel plate is supported by the support plate through a swivel bearing, the workpiece is limitedly supported by the swivel plate, the support plate drives the swivel plate and the workpiece to perform lifting and lowering movements, and the swivel plate drives the workpiece to perform rotational movement.

[0010] According to one embodiment of the present invention, the pressing piece is slidably assembled on a pressing frame, and two horizontal slide grooves with openings facing each other are formed on the pressing frame. The two ends of the pressing piece extend into the two horizontal slide grooves respectively, and the pressing piece can slide along the horizontal slide grooves to be directly above the workpiece after the cover is closed.

[0011] According to one embodiment of the present invention, it also includes a transport trolley, which is docked with the conveyor line, and at least two groups of limit assemblies are arranged between the transport trolley and the conveyor line, and the at least two groups of limit assemblies are assembled in reverse, and the limit assemblies include a limit plate and a wedge block, and the limit plate is hingedly assembled, and the limit plate and the wedge block are respectively arranged on the conveyor line and the transport trolley, and one end of the limit plate is equipped with a counterweight wheel, and in the initial state, the other end of the limit plate is tilted upward under the action of the counterweight wheel to limit the position; when docking, the counterweight wheel moves upward along the wedge block, and the other end of the limit plate falls, and the workpiece can be transported between the conveyor line and the transport trolley.

[0012] According to one embodiment of the present invention, a guide foot plate is further provided at the end of the conveyor line, a guide groove with a trumpet-shaped opening is formed on the guide foot plate, a guide wheel is provided at the lower end of the transport trolley, and the guide wheel moves along the guide groove; a foot support plate is also provided at the end of the guide foot plate close to the conveyor line to block the transport trolley.

[0013] Based on the above technical solution, the technical effects that can be achieved by the present invention are: The hydraulic motor assembly production line of the present invention conveys the workpiece through a conveyor line, and the flip press-fit station and the cover closing torque station are both arranged on the conveyor line. When the workpiece moves to the flip press-fit station, the flip press-fit station performs press-fitting, flipping, and secondary press-fitting on the workpiece; then, after the workpiece moves to the cover closing torque station, the cover closing torque is performed. In this process, the conveyor line conveys the workpiece to the flip press-fit station and the cover closing torque station for corresponding processing without the need to transport the workpiece, thereby simplifying the assembly process, reducing the assembly difficulty, and ensuring the assembly accuracy; The hydraulic motor assembly production line of the present invention comprises a turning press-fitting station including a pressing head, a first bearing structure and a clamping and turning assembly. When the workpiece moves to the turning press-fitting station, the first bearing structure can support the workpiece, and the two clamping heads of the clamping and turning assembly can clamp the workpiece to stabilize the position of the workpiece. The pressing head first performs a press-fitting on the workpiece; then the clamping and turning assembly turns the workpiece to turn the workpiece 180 degrees, and the pressing head performs a second press-fitting on the workpiece, that is, the pressing head presses both ends of the workpiece to ensure the press-fitting effect. The hydraulic motor assembly production line of the present invention has a synchronous structure between the two clamping seats, and the synchronous structure includes a rotating connecting plate and two connecting rods. Under the action of the synchronous structure, the two clamping seats can be ensured to move toward or away from each other synchronously, so as to achieve clamping and loosening of the workpiece; the turning driving member can realize the key shaft driving the two sleeves to rotate synchronously through the key shaft and two sleeves, that is, two sets of transmission components, and the two sleeves can then drive the two clamping heads to rotate synchronously through the two sets of transmission components to ensure stable turning of the workpiece; the sleeves rotate and slide with the key shaft, and the clamping seat and the sleeves are rotationally connected. When the two clamping seats move toward or away from each other, the two sleeves can be driven to move toward or away from each other, and then the two sets of transmission components also move toward or away from each other. The rotational movement of the sleeves can drive the clamping head to rotate through the sub-transmission component without affecting the movement of the clamping seat; The hydraulic motor assembly production line of the present invention comprises a first bearing structure including a lifting bearing frame and a lower support seat, the lifting bearing frame can perform lifting movement relative to the lower support seat, and the setting of the guide shaft can limit the movement direction of the lifting bearing frame; when the lifting bearing frame rises to support the workpiece, the pad can move horizontally to the bottom of the support column to support the support column, thereby ensuring the supporting strength of the lifting bearing frame and adapting to the downward pressure of the pressure head; when the lifting bearing frame descends, the pad can move horizontally to avoid the support column, and the lifting bearing frame can descend; The hydraulic motor assembly production line of the present invention includes a torque-applying station, a second bearing structure and a pressure plate. The pressure plate can move to the middle above the workpiece. The second bearing structure can carry the workpiece and rise until the workpiece is pressed by the pressure plate, thereby ensuring that the position of the end cover on the workpiece is stable and does not shake. Then the torque-applying structure applies torque to the workpiece. The working process is stable and accurate. The hydraulic motor assembly production line of the present invention comprises a second bearing structure including a support plate and a rotary plate. The support plate is driven to be lifted and lowered. The support plate can drive the rotary plate and the workpiece thereon to perform lifting and lowering movements. The rotary plate can drive the workpiece to perform rotating movements to meet the processing requirements of the workpiece. The pressing piece is slidably assembled on the pressing frame. When the pressing piece is not needed to press the workpiece, the pressing piece can slide to avoid the pressing piece. When the pressing piece is needed to press the workpiece, the pressing piece is slid to be located directly above the workpiece, and then the workpiece is lifted until it contacts the pressing piece. The hydraulic motor assembly production line of the present invention is that the transport trolley is connected with the conveying line, and the workpiece can be transported to the conveying line. A limiting assembly is arranged between the transport trolley and the conveying line, and the limiting assembly includes a limiting plate and a wedge block. The limiting plate is hingedly assembled, and one end of the limiting plate is equipped with a counterweight wheel. Under the action of the counterweight wheel, the other end of the limiting plate tilts upward, which can play a limiting role on the workpiece on the structure where it is located to prevent the workpiece from falling out. When the transport trolley and the conveying line gradually approach each other, the wedge block and the counterweight wheel gradually approach each other, and the counterweight wheel moves upward along the wedge block, then the other end of the limiting plate falls, and the workpiece can be transported between the conveying line and the transport trolley; further, the limiting assembly is arranged to be at least two groups, and they are arranged in reverse, so that at least one limiting plate is arranged on the conveying line, and at least one limiting plate is arranged on the transport trolley, and when the two are not connected, the limiting plates each play a limiting role on the workpiece on the conveying line and the workpiece on the transport trolley; when the two are connected, the wedge block releases the limiting effect, and the workpiece can be transported between the two; In the hydraulic motor assembly production line of the present invention, a guide foot plate is arranged at the end of the conveyor line to cooperate with the guide wheel of the transport trolley, so as to ensure the movement direction of the transport trolley when docking with the conveyor line and ensure that the transport trolley and the conveyor line are aligned and docked; the guide groove has a trumpet-shaped opening to facilitate the guide wheel to enter the guide groove; a foot support plate is arranged on the guide foot plate to block the transport trolley and limit the position of the transport trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the hydraulic motor assembly production line of the present invention; Figure 2 It is a structural schematic diagram of the flip press station; Figure 3 It is a schematic diagram of the structure in which the pressure head is installed on the bracket; Figure 4 It is a schematic diagram of the structure of the first bearing structure supporting the material tray; Figure 5 is a structural schematic diagram of a first bearing structure; Figure 6 It is a structural schematic diagram of the lifting load frame; Figure 7 is a structural schematic diagram of the lower support seat; Figure 8 A schematic diagram of the structure of the clamping and flipping assembly installed on the bracket; Fig. 9 It is a schematic diagram of the structure of the clamping and flipping assembly; Fig.10 It is the front view of the clamping and flipping assembly; Fig.11 A three-dimensional diagram of a clamping and flipping assembly; Fig.12 It is a schematic diagram of the structure of the clamping seat being slidably assembled; Fig.13 It is a structural diagram of the torque station for closing the lid; Fig.14 This is a schematic diagram of the installation structure of the torque-applying structure; Fig.15 is a structural schematic diagram of a second bearing structure; Fig.16 This is a schematic diagram of the installation structure of the pressing piece; Fig.17 It is a structural schematic diagram of the material tray; Fig.18 It is a structural diagram of the connection between the conveyor line and the transport trolley; Fig.19 It is a structural schematic diagram of the limit assembly; Fig. 20 It is a schematic diagram of the structure of the transport trolley and the guide foot plate; Fig.21 The schematic diagram of the structure of the guide foot plate; In the figure: 1- conveyor line; 2- flip press station; 21- press head; 211- press head bracket; 212- first drive structure; 22- first bearing structure; 221- lifting and lowering frame; 2211- upper plate; 2212- lower plate; 2213- guide shaft; 2214- support column; 2215- first limit protrusion; 2216- support protrusion; 222- lower support seat; 223- lifting and lowering drive cylinder; 224- pad; 225- second Driving structure; 23-clamping and flipping assembly; 231-clamping head; 232-clamping seat; 233-clamping driving member; 234-flipping driving member; 235-synchronizing structure; 2351-rotating connecting plate; 2352-connecting rod; 236-flipping transmission assembly; 2361-key shaft; 2362-main transmission assembly; 2363-shaft sleeve; 2364-sub-transmission assembly; 237-slide; 2371-first guide shaft; 238-third Driving structure; 239-connecting frame; 24-bracket; 241-vertical track; 3-covering torque station; 31-torque structure; 311-mounting frame; 312-balancing booster; 32-second bearing structure; 321-support plate; 3211-second guide shaft; 322-slewing plate; 3221-second limiting protrusion; 323-slewing bearing; 324-main driving member; 325-auxiliary driving member; 33-pressing member; 331-pressing frame; 3311-vertical support column; 3312-crossbeam; 33121-horizontal slide; 34-bottom plate; 35-vertical column; 4-transport trolley; 41-guide wheel; 5-workpiece; 51-end cover; 6-material tray; 61-upper plate; 611-limiting protrusion; 612-handle part; 62-lower plate; 7-limiting assembly; 71-limiting plate; 72-counterweight wheel; 73-wedge block; 8-guide foot plate; 81-guide groove; 82-foot support plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0017] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0018] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0019] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] like Figure 1-21 As shown, this embodiment provides a hydraulic motor assembly production line, including a conveyor line 1, on which a flipping and pressing station 2 and a cover-closing and torque-applying station 3 are arranged, the flipping and pressing station 2 is located upstream of the cover-closing and torque-applying station 3, the conveyor line 1 conveys the workpiece 5 to the flipping and pressing station 2, the flipping and pressing station 2 first presses the workpiece 5 once, then flips the workpiece 5, and presses the workpiece 5 for a second time; the pressed workpiece 5 is conveyed by the conveyor line 1 to the cover-closing and torque-applying station 3, and the cover-closing and torque-applying station 3 performs cover-closing and torque-applying on the pressed workpiece 5.

[0022] The conveyor line 1 can extend in a straight line, and the conveyor line 1 includes two conveyor chains that are parallel and spaced apart; the workpiece 5 is conveyed by the conveyor line 1 through the material tray 6. Specifically, the workpiece 5 is placed on the material tray 6, and the two ends of the material tray 6 are respectively placed on the two conveyor chains, and the workpiece 5 is conveyed by the conveyor line 1.

[0023] As a preferred technical solution of this embodiment, the material tray 6 includes an upper plate 61 and a lower plate 62 that are stacked and fixed, and a limiting protrusion 611 is formed on the upper plate 61. The material tray 6 can support the workpiece 5 in a limited position, and when the workpiece 5 is placed on the material tray 6, it can be in a vertical state.

[0024] As a preferred technical solution of this embodiment, a hand-held portion 612 is also provided on the tray 6, and the operator can grasp the hand-held portion 612 to manually pull the workpiece 5 to a desired position. Specifically, two hand-held portions 612 can be provided, and the two hand-held portions 612 are respectively located at the front and rear ends of the upper plate 61.

[0025] The flipping and pressing station 2 is installed on the conveyor line 1. The flipping and pressing station 2 can flip and press the workpiece 5 transported by the conveyor line 1 without interfering with the conveying of the workpiece 5 by the conveyor line 1. The flipping and pressing station 2 includes a pressing head 21, a first bearing structure 22 and a clamping and flipping assembly 23. The pressing head 21, the first bearing structure 22 and the clamping and flipping assembly 23 are all installed on a bracket 24. The first bearing structure 22 is located between the two conveyor chains of the conveyor line 1. When it is not necessary to work, the first bearing structure 22 is lower than the height of the conveyor chain and does not affect the conveying of the workpiece 5 by the conveyor line 1. When flipping and pressing is required, the first bearing structure 22 can rise to support the material tray 6. The pressing head 21 is located directly above the first bearing structure 22 for press-fitting the workpiece 5. The clamping and flipping assembly 23 is located between the pressing head 21 and the first bearing structure 22. The clamping and flipping assembly 23 can clamp the workpiece 5 and flip the workpiece 5.

[0026] The pressure head 21 is installed on the bracket 24 in a lifting manner. Specifically, the pressure head 21 is installed on the pressure head bracket 211. The pressure head bracket 211 includes two vertical rods. The upper and lower ends of the two vertical rods are connected by end plates respectively. The two vertical rods of the pressure head bracket 211 pass through the bracket 24 and can slide vertically relative to the bracket 24. The first driving structure 212 is assembled on the bracket 24. The telescopic end of the first driving structure 212 drives the pressure head bracket 211 to drive the pressure head 21 to perform lifting movement.

[0027] As a preferred technical solution of this embodiment, the first driving structure 212 may be, but is not limited to, a gas-liquid booster cylinder.

[0028] The first bearing structure 22 is used to support the material tray 6 and the workpiece 5 thereon. The first bearing structure 22 can rise to lift the material tray 6 and the workpiece 5 to the clamping and flipping assembly 23, so that the clamping and flipping assembly 23 can clamp the workpiece 5. The first bearing structure 22 includes a lifting bearing frame 221, a lower support seat 222 and a lifting drive cylinder 223. The lifting bearing frame 221 and the lower support seat 222 are slidably matched. The lifting drive cylinder 223 is fixed on the lower support seat 222. The lifting drive cylinder 223 drives the lifting bearing frame 221 to perform lifting and lowering motion relative to the lower support seat 222. The lifting bearing frame 221 includes an upper plate 2211 and a lower plate 2212 that are spaced apart and arranged in parallel. The upper plate 2211 and the lower plate 2212 are connected as a whole through a guide shaft 2213. The lower support seat 222 is fixed on the bracket 24. The guide shaft 2213 passes through the lower support seat 222. The lifting bearing frame 221 can be lifted and slid relative to the lower support seat 222.

[0029] As a preferred technical solution of this embodiment, the upper surface of the upper plate 2211 is provided with a first limiting protrusion 2215, and at least two first limiting protrusions 2215 can be provided. At least two positioning grooves are correspondingly provided on the bottom surface of the material tray 6, and the first limiting protrusion 2215 can be inserted into the positioning groove of the material tray 6 to locate the position of the material tray 6. In this embodiment, two first limiting protrusions 2215 are provided, and are respectively arranged close to a group of diagonal arrangements of the upper plate 2211. The first limiting protrusion 2215 can be provided as a special-shaped protrusion, and the size of the top of the first limiting protrusion 2215 is appropriately reduced to facilitate insertion into the positioning groove.

[0030] As a preferred technical solution of this embodiment, at least two supporting protrusions 2216 are also provided on the upper surface of the upper plate 2211 to cooperate with the first limiting protrusion 2215 to stably support the material tray 6. In this embodiment, two supporting protrusions 2216 are provided, each of which is close to another diagonal arrangement of the upper plate 2211.

[0031] As a preferred technical solution of this embodiment, a linear bearing is provided on the lower support seat 222, and the lower support seat 222 cooperates with the guide shaft 2213 through the linear bearing.

[0032] As a preferred technical solution of this embodiment, at least four guide shafts 2213 are provided, and the at least four guide shafts 2213 are distributed at four corners of the upper plate 2211 and the lower plate 2212 .

[0033] As a preferred technical solution of this embodiment, the lower surface of the upper plate 2211 is also provided with a support column 2214, and there is a gap between the lower end surface of the support column 2214 and the lower plate 2212. Correspondingly, the upper surface of the lower support seat 222 is movably equipped with a pad 224, which can be misaligned with the support column 2214 without affecting the movement of the support column 2214. When the support column 2214 is required to play a supporting role, the pad 224 can be moved to the bottom of the support column 2214, and the support column 2214 is supported by the pad 224. Multiple support points can provide stable supporting force during press fitting. Preferably, the pad 224 is slidably assembled on the lower support seat 222, and the second drive structure 225 is assembled on the lower support seat 222. The telescopic end of the second drive structure 225 drives the pad 224 to slide. Preferably, an avoidance hole is provided on the pad 224, which can facilitate avoiding the support column 2214. In this embodiment, at least four support columns 2214 are provided and symmetrically distributed. The second driving structure 225 may be selected from but is not limited to a cylinder.

[0034] The clamping and flipping assembly 23 can clamp the workpiece 5 and flip the workpiece 5. The clamping and flipping assembly 23 includes two clamping heads 231 arranged opposite to each other. The two clamping heads 231 are respectively rotatably assembled on two clamping seats 232. The two clamping seats 232 are slidably assembled on a slide 237. The slide 237 is slidably assembled on the bracket 24. The two clamping heads 231 move synchronously toward or away from each other to clamp or release the workpiece 5; the two clamping heads 231 rotate synchronously to flip the workpiece 5; the height of the two clamping seats 232 is adjustable to avoid the first bearing structure 22 to avoid collision when flipping the workpiece 5.

[0035] Specifically, a vertical rail 241 is provided on the bracket 24, and the slide 237 is slidably assembled on the vertical rail 241, and slides along the vertical rail 241 under the drive of the third driving structure 238; the two clamping seats 232 are horizontally slidably assembled on the slide 237, and move toward or away from each other under the action of the clamping driving member 233; the two clamping heads 231 rotate synchronously under the drive of the flipping driving member 234 to flip the workpiece 5.

[0036] As a preferred technical solution of this embodiment, a horizontally extending first guide shaft 2371 may be provided on the slide 237, and the two clamping seats 232 move along the first guide shaft 2371. Preferably, at least two first guide shafts 2371 are provided, and at least two first guide shafts 2371 are parallel and spaced apart.

[0037] As a preferred technical solution of this embodiment, two clamping driving members 233 can be provided, and the two clamping driving members 233 are symmetrically arranged. The driving ends of the two clamping driving members 233 are respectively connected to the two clamping seats 232 to drive the two clamping seats 232 and the clamping heads 231 thereon to move toward or away from each other. Preferably, the two clamping driving members 233 are located between two adjacent first guide shafts 2371. The clamping driving member 233 can be selected from but not limited to a cylinder.

[0038] As a preferred technical solution of this embodiment, in order to ensure the synchronization of the two clamping seats 232 moving toward or away from each other, a synchronization structure 235 is provided between the two clamping seats 232. The synchronization structure 235 includes a rotating connecting plate 2351, which is located in the middle of the two clamping seats 232, and the center of the rotating connecting plate 2351 is rotated and assembled, and the two ends of the rotating connecting plate 2351 are respectively hinged to the two clamping seats 232 through two connecting rods 2352.

[0039] As a preferred technical solution of this embodiment, the flip driving member 234 drives the two clamping heads 231 to rotate synchronously through the flip transmission assembly 236. The flip transmission assembly 236 includes a key shaft 2361, a main transmission assembly 2362, a sleeve 2363 and a sub-transmission assembly 2364. The key shaft 2361 is rotationally supported by two clamping seats 232. The flip driving member 234 drives the key shaft 2361 to rotate through the main transmission assembly 2362. The key shaft 2361 drives the two clamping heads 231 to rotate relative to the clamping seat 232 through the two sub-transmission assemblies 2364. Two sleeves 2363 are symmetrically arranged on the outer circumference of the key shaft 2361. The two sleeves 2363 can slide along the key shaft 2361 and rotate with the key shaft 2361. The two clamping seats 232 rotate with the two sleeves 2363 through bearings. The flip driving member 234 is connected to the key shaft 2361 through the connecting frame 239. The connecting frame 239 is assembled on the bracket 24. The connecting frame 239 is rotatably connected to the key shaft 2361. The main transmission assembly 2362 is assembled on the connecting frame 239; the two sleeves 2363 drive the two clamping heads 231 to rotate through the sub-transmission assembly 2364 respectively. The sub-transmission assembly 2364 is assembled on the sleeve 2363 and rotates with the sleeve 2363. Both the main transmission assembly 2362 and the sub-transmission assembly 2364 can be set as a pulley transmission assembly. The driving wheel of the main transmission assembly 2362 is driven by the flip driving member 234, and the driven wheel of the main transmission assembly 2362 rotates with the key shaft 2361; the driving wheel of the sub-transmission assembly 2364 is fixedly sleeved on the sleeve 2363, and the driven wheel of the sub-transmission assembly 2364 is connected to the hinge shaft of the clamping head 231. The flip driving member 234 can be selected but not limited to a motor.

[0040] As a preferred technical solution of this embodiment, two vertical rails 241 can be provided, the two vertical rails 241 are arranged at intervals, and the slide 237 slides along the two vertical rails 241. The third driving structure 238 is provided on the bracket 24, and the telescopic end of the third driving structure 238 is connected to the middle of the slide 237.

[0041] As a preferred technical solution of this embodiment, the third driving structure 238 may be, but is not limited to, a cylinder.

[0042] The cover closing torque station 3 includes a torque structure 31, a second bearing structure 32 and a pressing piece 33, and the torque structure 31, the second bearing structure 32 and the pressing piece 33 are directly or indirectly supported by the bottom plate 34. Among them, the second bearing structure 32 is located between the two conveyor chains of the conveyor line 1, and the second bearing structure 32 is used to support the material tray 6 and the workpiece 5 thereon. The pressing piece 33 is located above the workpiece 5 and can press the end cover 51. The torque structure 31 is located above the workpiece 5 and performs torque on the end cover 51 of the workpiece 5.

[0043] The torque-applying structure 31 is assembled on a mounting seat, which is fixed on a mounting frame 311. The mounting frame 311 includes two parallel horizontal rods, and the two ends of the two horizontal rods are connected as one body; a vertical column 35 is fixed on the bottom plate 34, and a balancing booster 312 is sleeved on the vertical column 35, and the two horizontal rods slide through the balancing booster 312. The balancing booster 312 can rotate and slide up and down along the vertical column 35, and the horizontal rod can slide horizontally relative to the balancing booster 312. In this way, the torque-applying structure 31 can slide up and down, deflect horizontally, and slide horizontally, and then reach the desired position to apply torque.

[0044] The second supporting structure 32 supports the material tray 6 and the workpiece 5 thereon. The second supporting structure 32 includes a support plate 321 and a swivel plate 322. The swivel plate 322 is installed on the support plate 321 through a swivel bearing 323. The material tray 6 is supported by the swivel plate 322. The support plate 321 can drive the swivel plate 322 to perform lifting and lowering movements. The swivel plate 322 can drive the material tray 6 to perform swivel movements relative to the support plate 321.

[0045] A second guide shaft 3211 is fixed to the lower end of the support plate 321. The second guide shaft 3211 passes through the bottom plate 34. The bottom plate 34 cooperates with the second guide shaft 3211 through a linear bearing to limit the lifting movement of the support plate 321 relative to the bottom plate 34. The second guide shaft 3211 can be set to at least two. In this embodiment, in order to ensure the stability of the movement, four second guide shafts 3211 are set, respectively located at the four corners of the support plate 321.

[0046] A second limiting protrusion 3221 is formed on the upper surface of the rotating plate 322, and at least two second limiting protrusions 3221 are provided. At least two second limiting protrusions 3221 can be inserted into the positioning groove below the material tray 6 to limit the position of the material tray 6. In this embodiment, two second limiting protrusions 3221 are provided, and the two second limiting protrusions 3221 are arranged opposite to each other. A gasket is also provided on the upper surface of the rotating plate 322 to cooperate with the support of the material tray 6. The second limiting protrusion 3221 can be set as a special-shaped protrusion, and the size of the top of the second limiting protrusion 3221 is appropriately reduced to facilitate insertion into the positioning groove.

[0047] As a preferred technical solution of this embodiment, the support plate 321 is driven by a driving member to perform lifting motion. In order to ensure the stability of the support, a driving member is provided including a main driving member 324 located at the center and an auxiliary driving member 325 located outside the main driving member 324. The main driving member 324 and the auxiliary driving member 325 jointly drive the support plate 321 to perform lifting motion. Preferably, two auxiliary driving members 325 are provided, symmetrically located on both sides of the main driving member 324. Both the main driving member 324 and the auxiliary driving member 325 can be selected from but not limited to cylinders. The main driving member 324 and the auxiliary driving member 325 are assembled on the bottom plate 34, and their driving ends drive the support plate 321 to move.

[0048] As a preferred technical solution of this embodiment, the support plate 321 is also provided with a locking structure for the rotary plate 322. Specifically, a locking cylinder is provided on the lower surface of the support plate 321. The telescopic end of the locking cylinder extends through the support plate 321. A locking groove is provided on the lower surface of the rotary plate 322. The telescopic end of the locking cylinder can extend into the locking groove to lock the rotary plate 322 to prevent the rotary plate 322 from rotating when the cover is closed and pressed. Preferably, a guide plate is also provided on the upper surface of the support plate 321. A guide hole is opened on the guide plate. The guide hole can guide the telescopic end of the locking cylinder.

[0049] As a preferred technical solution of this embodiment, if the workpiece 5 needs to be rotated, the hand-held portion 612 of the material tray 6 can be grasped to rotate the material tray 6 to the desired position.

[0050] The pressing piece 33 is used to press the end cover 51 on the workpiece 5, so as to facilitate the operation of the torque structure 31. The pressing piece 33 is a square bar, and the pressing piece 33 is slidably assembled on the pressing frame 331, and the pressing frame 331 is fixedly assembled on the bottom plate 34. The pressing frames 331 are arranged in two groups in parallel and symmetrically, and each group of pressing frames 331 includes two vertical support columns 3311, the bottom ends of the two vertical support columns 3311 are fixed on the bottom plate 34, and the top ends of the two vertical support columns 3311 are connected with a crossbeam 3312, and the two crossbeams 3312 are oppositely arranged with horizontal slide grooves 33121, and the two ends of the pressing piece 33 extend into the two horizontal slide grooves 33121 respectively, and the pressing piece 33 can slide horizontally along the two horizontal slide grooves 33121.

[0051] As a preferred technical solution of this embodiment, a hand piece is provided on the pressing piece 33 to facilitate grasping and pulling the pressing piece 33 to slide.

[0052] As a preferred technical solution of this embodiment, the horizontal slide groove 33121 extends from one end of the beam 3312 to the middle position. When the pressing piece 33 slides to the middle position of the horizontal slide groove 33121, it can play a role in pressing the end cover 51. When it is not necessary to use the pressing piece 33 to press the end cover 51, the pressing piece 33 can be slid to the end of the beam 3312 to avoid interference. Preferably, an upper stopper is provided at one end of the horizontal slide groove 33121 located at the middle position of the beam 3312, which can limit the pressing piece 33 and prevent the pressing piece 33 from falling out.

[0053] In order to facilitate the transportation of the material tray 6 and the workpiece 5, a transport trolley 4 is also provided. The front end of the transport trolley 4 can be docked with the conveyor line 1 to transport the material tray 6 and the workpiece 5 to be assembled thereon to the conveyor line 1, or to transfer the workpiece 5 assembled on the conveyor line 1 to the transport trolley 4.

[0054] A limiting assembly 7 is provided between the conveyor line 1 and the transport trolley 4. The limiting assembly 7 includes a limiting plate 71 and a wedge block 73. The limiting plate 71 and the wedge block 73 are respectively provided on the conveyor line 1 and the transport trolley 4. The limiting plate 71 is hingedly assembled. One end of the limiting plate 71 is equipped with a counterweight wheel 72. In the initial state, the other end of the limiting plate 71 is tilted upward under the action of the counterweight wheel 72 to limit the position; when docking, the wedge block 73 approaches the counterweight wheel 72, and the counterweight wheel 72 gradually moves upward along the wedge surface of the wedge block 73, causing the other end of the limiting plate 71 to fall. In this way, the workpiece 5 can be transported between the conveyor line 1 and the transport trolley 4.

[0055] As a preferred technical solution of this embodiment, the limiting assembly 7 can be set to at least two groups, at least one group of limiting assemblies 7 has a limiting plate 71 located at the end of the conveyor line 1, and a wedge block 73 located at the end of the transport trolley 4; at least one group of limiting assemblies 7 has a wedge block 73 located at the end of the conveyor line 1, and a limiting plate 71 located at the end of the transport trolley 4. In this way, when the conveyor line 1 and the transport trolley 4 are not docked, the ends of the limiting plates 71 on the conveyor line 1 and the limiting plates 71 on the transport trolley 4 are in an upward state under the action of the counterweight wheel 72, protruding from the conveying plane of the conveyor line 1 and the bearing plane of the transport trolley 4, which can block the workpieces 5 on the conveyor line 1 and the workpieces 5 on the transport trolley 4 and prevent them from falling out.

[0056] As the preferred technical solution of this embodiment, at least one limit plate 71 and at least one wedge block 73 are respectively provided at both ends of the conveyor line 1, which can realize the limitation of the two ends of the conveyor line 1 and facilitate the docking of both ends of the conveyor line 1 with the transport trolley 4.

[0057] In order to ensure that the transport trolley 4 can be aligned with the conveyor line 1 when docking, a guide foot plate 8 is provided on the ground at the end of the conveyor line 1, and a guide groove 81 is formed on the guide foot plate 8. A guide wheel 41 is provided at the lower end of the transport trolley 4, and the guide wheel 41 can move along the guide groove 81, thereby limiting the movement direction of the transport trolley 4 so as to accurately dock with the conveyor line 1.

[0058] As a preferred technical solution of this embodiment, the opening of the guide groove 81 is trumpet-shaped, which facilitates the guide wheel 41 to enter the guide groove 81.

[0059] As a preferred technical solution of this embodiment, a foot support plate 82 is further provided at the end of the guide foot plate 8 close to the conveyor line 1 , and the foot support plate 82 can block the transport trolley 4 and limit the position of the transport trolley 4 .

[0060] In the hydraulic motor assembly production line of this embodiment, the workpiece 5 to be assembled is a hydraulic motor. In addition to the flipping and pressing station 2 and the cover closing and torqueing station 3, other workstations may also be set up, such as a parts assembly station may be set upstream of the flipping and pressing station 2.

[0061] During operation, the transport trolley 4 can carry the material tray 6 and dock with the loading end of the conveyor line 1. The material tray 6 is moved onto the conveyor line 1 and then transported to the parts assembly station, where the motor housing and internal structure can be placed. The conveyor line 1 transports the workpiece 5 to the flipping and pressing station 2, the lifting frame 221 of the first bearing structure 22 is driven to rise, the first limiting protrusion 2215 is limitedly connected with the bottom of the tray 6, the lifting frame 221 supports the tray 6 and the workpiece 5 thereon to rise, and after reaching the position, the second driving structure 225 drives the pad 224 to slide, and the support column 2214 is supported by the pad 224. Then, the clamping driving member 233 of the clamping flipping assembly 23 drives the two clamping seats 232 to drive the two clamping heads 231 to move toward each other to clamp the workpiece 5. Then, the ram 21 presses the workpiece 5 under the drive of the first driving structure 212. After the first press-fitting, the ram 21 rises, and the third driving structure 238 drives the slide 237 to slide upward. The slide 237 drives the clamping seat 232 and the clamping head 231 to slide upward for a distance. After leaving the flipping space, the flipping driving component 234 drives the two clamping heads 231 to rotate synchronously, flipping the workpiece 5 180 degrees, and then the third driving structure 238 drives the slide 237 to slide downward, placing the workpiece 5 on the tray 6, and the ram 21 presses the workpiece 5 again to achieve the second press-fitting.

[0062] The conveyor line 1 conveys the pressed workpiece 5 to the cover-closing torque station 3, places the end cap 51 on the top of the workpiece 5, and slides the pressing piece 33 to the middle position of the two crossbeams 3312; then, the support plate 321 of the second bearing structure 32 rises under the driving action of the main driving member 324 and the auxiliary driving member 325, and the rotating plate 322 thereon rises together, and the second limiting protrusion 3221 on the rotating plate 322 is inserted into the bottom of the material tray 6, and the limiting support supports the material tray 6 and the workpiece 5 thereon, and the support plate 321 continues to drive the workpiece 5 to rise until the end cap 51 is pressed by the pressing piece 33; then the torque structure 31 can move to a position to perform torque work. After the torque is completed, the rotating plate 322 can be rotated to adjust the position of the workpiece 5 to adapt to the next station. The second bearing structure 32 descends, and the material tray 6 falls onto the conveyor line 1, and the conveyor line 1 can drive the material tray 6 and the workpiece 5 thereon to the next station.

[0063] The workpiece 5 processed by the assembly production line can be transported via the transport trolley 4 connected to the discharge end of the conveyor line 1 .

[0064] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A hydraulic motor assembly production line, characterized in that: include: A conveyor line (1), wherein the conveyor line (1) is used to convey a workpiece (5); A turning and pressing station (2), wherein the turning and pressing station (2) is arranged on the conveyor line (1), and after the turning and pressing station (2) performs a first pressing on the workpiece (5), the workpiece (5) is turned over, and then a second pressing is performed; A capping and torqueing station (3), wherein the capping and torqueing station (3) is arranged on the conveyor line (1), and the capping and torqueing station (3) is located downstream of the flipping and pressing station (2), and the capping and torqueing station (3) performs capping and torqueing on the workpiece (5) after pressing; The overturning and pressing station (2) comprises: A pressing head (21), wherein the pressing head (21) presses the workpiece (5); A first bearing structure (22), the first bearing structure (22) supporting the workpiece (5); A clamping and flipping assembly (23), wherein the clamping and flipping assembly (23) is located between the pressure head (21) and the first bearing structure (22), and comprises two clamping heads (231) arranged opposite to each other, wherein the two clamping heads (231) are respectively rotatably mounted on two clamping seats (232), the clamping driving member (233) drives the two clamping seats (232) to move synchronously towards or away from each other, and the flipping driving member (234) drives the two clamping heads (231) to rotate synchronously.

2. A hydraulic motor assembly production line according to claim 1, characterized in that: The two clamping seats (232) are slidably assembled, and a synchronization structure (235) is provided between the two clamping seats (232). The synchronization structure (235) comprises a rotating connecting plate (2351), and the rotating connecting plate (2351) is located in the middle of the two clamping seats (232). The center of the rotating connecting plate (2351) is rotationally assembled, and the two ends of the rotating connecting plate (2351) are respectively hinged to the two clamping seats (232) through two connecting rods (2352).

3. A hydraulic motor assembly production line according to claim 1, characterized in that: The flip driving member (234) drives the two clamping heads (231) to rotate synchronously via the key shaft (2361); the flip driving member (234) drives the key shaft (2361) to rotate; two shaft sleeves (2363) are provided on the key shaft (2361) to rotate and slide with the key shaft (2361); the two clamping seats (232) are respectively rotatably connected to the two shaft sleeves (2363); and the shaft sleeves (2363) drive the clamping heads (231) to rotate via the sub-transmission assembly (2364).

4. A hydraulic motor assembly production line according to claim 1, characterized in that: The first bearing structure (22) comprises a lifting bearing frame (221) and a lower support seat (222); the lifting bearing frame (221) comprises an upper plate (2211) and a lower plate (2212) which are spaced apart from each other; a guide shaft (2213) is arranged between the upper plate (2211) and the lower plate (2212); the guide shaft (2213) and the lower support seat (222) are slidably matched to limit the lifting bearing frame (221) to perform lifting movement; a lifting drive cylinder (223) drives the lifting bearing frame (221) to move; a support column (2214) is also vertically arranged below the upper plate (2211); a pad (224) is mounted on the lower support seat (222); after the lifting bearing frame (221) is lifted, the pad (224) moves horizontally to below the support column (2214) to support the support column (2214).

5. The hydraulic motor assembly production line according to claim 1, characterized in that: The lid closing and torqueing station (3) comprises: A torque-applying structure (31), wherein the torque-applying structure (31) applies torque to the workpiece (5) after the cover is closed; a second bearing structure (32), the second bearing structure (32) supporting the workpiece (5), the second bearing structure (32) driving the workpiece (5) to rise, fall and rotate; A pressing piece (33), wherein the pressing piece (33) presses the workpiece (5) after the cover is closed from above.

6. A hydraulic motor assembly production line according to claim 5, characterized in that: The second bearing structure (32) comprises a support plate (321) and a slewing plate (322); the slewing plate (322) is supported by the support plate (321) via a slewing bearing (323); the workpiece (5) is limitedly supported by the slewing plate (322); the support plate (321) drives the slewing plate (322) and the workpiece (5) to perform lifting motion; and the slewing plate (322) drives the workpiece (5) to perform rotational motion.

7. A hydraulic motor assembly production line according to claim 5, characterized in that: The pressing piece (33) is slidably mounted on a pressing frame (331), and two horizontal slide grooves (33121) with openings facing each other are formed on the pressing frame (331). Two ends of the pressing piece (33) extend into the two horizontal slide grooves (33121) respectively, and the pressing piece (33) can slide along the horizontal slide grooves (33121) to the top of the workpiece (5) after the cover is closed.

8. The hydraulic motor assembly production line according to claim 1, characterized in that: The invention also comprises a transport trolley (4), wherein the transport trolley (4) is docked with the conveyor line (1), and at least two groups of limit assemblies (7) are arranged between the transport trolley (4) and the conveyor line (1), and the at least two groups of limit assemblies (7) are assembled in reverse order, and the limit assemblies (7) comprise a limit plate (71) and a wedge block (73), wherein the limit plate (71) is hingedly assembled, and the limit plate (71) and the wedge block (73) are respectively arranged on the conveyor line (1) and the transport trolley (4), and one end of the limit plate (71) is equipped with a counterweight wheel (72), and in an initial state, the other end of the limit plate (71) is tilted upwards to limit the position under the action of the counterweight wheel (72); when docking, the counterweight wheel (72) moves upwards along the wedge block (73), and the other end of the limit plate (71) falls, and the workpiece (5) can be transported between the conveyor line (1) and the transport trolley (4).

9. A hydraulic motor assembly production line according to claim 8, characterized in that: A guide foot plate (8) is also provided at the end of the conveyor line (1), and a guide groove (81) with a trumpet-shaped opening is formed on the guide foot plate (8). A guide wheel (41) is provided at the lower end of the transport trolley (4), and the guide wheel (41) moves along the guide groove (81); and a foot support plate (82) is also provided at the end of the guide foot plate (8) close to the conveyor line (1) to block the transport trolley (4).

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