A hydraulic motor assembly production line

Abstract

The present application relates to the technical field of hydraulic motor, particularly relates to a hydraulic motor assembly production line.A hydraulic motor assembly production line, comprising: a conveying line, the conveying line is used for conveying workpieces; a turnover press station, the turnover press station is arranged on the conveying line, the turnover press station carries out primary press on the workpieces, then turns over the workpieces, and then carries out secondary press; a cover combining and torque station, the cover combining and torque station is arranged on the conveying line, the cover combining and torque station is located downstream of the turnover press station, and the cover combining and torque station carries out cover combining and torque on the workpieces after press. The technical problems of the prior art, such as needing to carry multiple times, great assembly difficulty and low precision in the process of hydraulic motor assembly are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic motor, in particular to a hydraulic motor assembly production line. BACKGROUND

[0002] In the prior art, with the increasing use of hydraulic motors, the assembly of hydraulic motors is becoming more and more important. At present, the assembly of hydraulic motors mostly adopts manual assembly or only individual process adopts special machine assembly. In the process of assembly operation, the parts, semi-finished products or finished products need to be constantly transported, so that the structure is transferred between different operation tables, which greatly improves the difficulty of hydraulic motor assembly and reduces the assembly precision. SUMMARY

[0003] In order to solve the technical problems of the prior art that the hydraulic motor assembly needs to be transported many times, the assembly is difficult and the precision is low, the present application provides a hydraulic motor assembly production line, which solves the above technical problems.

[0004] In order to solve the above technical problems, the present application provides a hydraulic motor assembly production line, comprising:

[0005] A conveying line for conveying workpieces;

[0006] A turnover press-fitting station is arranged on the conveying line. The turnover press-fitting station performs primary press-fitting on the workpieces, turns over the workpieces, and then performs secondary press-fitting.

[0007] A cover combining and torque striking station is arranged on the conveying line. The cover combining and torque striking station is located downstream of the turnover press-fitting station. The cover combining and torque striking station performs cover combining and torque striking on the press-fitted workpieces.

[0008] The turnover press-fitting station comprises:

[0009] A press head for press-fitting the workpieces;

[0010] A first bearing structure for supporting the workpieces;

[0011] A clamping and turnover assembly is located between the press head and the first bearing structure. The clamping and turnover assembly comprises two oppositely arranged clamping heads. The two clamping heads are respectively rotationally assembled on two clamping seats. A clamping driving member drives the two clamping seats to move synchronously towards or away from each other. A turnover driving member drives the two clamping heads to rotate synchronously.

[0012] According to one of the embodiments of the present application, two clamping seats are slidingly assembled, and a synchronous structure is arranged between the two clamping seats, the synchronous structure comprises a rotating connecting plate, the rotating connecting plate is located at the middle of the two clamping seats, the center of the rotating connecting plate is rotatingly assembled, and the two ends of the rotating connecting plate are respectively hinged to the two clamping seats through two connecting rods.

[0013] According to one of the embodiments of the present application, the turnover driving member drives the two clamping heads to synchronously rotate through a key shaft, the turnover driving member drives the key shaft to rotate, two shaft sleeves are arranged on the key shaft in a rotating and sliding manner, the two clamping seats are respectively rotatingly connected to the two shaft sleeves, and the shaft sleeves drive the clamping heads to rotate through a sub-transmission assembly.

[0014] According to one of the embodiments of the present application, the first bearing structure comprises a lifting bearing frame and a lower support base, the lifting bearing frame comprises an upper plate and a lower plate which are arranged in a spaced-apart manner, a guide shaft is arranged between the upper plate and the lower plate, the guide shaft is slidingly matched with the lower support base to limit the lifting movement of the lifting bearing frame, a lifting driving cylinder drives the lifting bearing frame to move, a support column is vertically arranged below the upper plate, and a pad plate is assembled on the lower support base, after the lifting bearing frame is lifted, the pad plate moves horizontally to support the support column below the support column.

[0015] According to one of the embodiments of the present application, the cover closing and torqueing station comprises:

[0016] A torqueing structure, which is used for torqueing the workpiece after the cover is closed;

[0017] A second bearing structure, which is used for supporting the workpiece and driving the workpiece to lift and rotate;

[0018] A pressing member, which is used for pressing the workpiece after the cover is closed from above.

[0019] According to one of the embodiments of the present application, the second bearing structure comprises a support plate and a rotary plate, the rotary plate is supported by the support plate through a rotary bearing, the workpiece is supported by the rotary plate, the support plate drives the rotary plate and the workpiece to lift, and the rotary plate drives the workpiece to rotate.

[0020] According to one of the embodiments of the present application, the pressing member is slidingly assembled on a pressing frame, two horizontally sliding grooves which are oppositely arranged are formed on the pressing frame, the two ends of the pressing member respectively extend into the two horizontally sliding grooves, and the pressing member can slide along the horizontally sliding grooves to be above the workpiece after the cover is closed.

[0021] According to one embodiment of the present application, the conveying line is further connected with a transport trolley, and at least two sets of limiting assemblies are arranged between the conveying line and the transport trolley, and the at least two sets of limiting assemblies are reversely assembled, the limiting assembly comprises a limiting plate and a wedge-shaped block, the limiting plate is hingedly assembled, and the limiting plate and the wedge-shaped block are respectively arranged on the conveying line and the transport trolley, one end of the limiting plate is assembled with a counterweight wheel, and in an initial state, the other end of the limiting plate is upwardly tilted under the action of the counterweight wheel to limit; when the conveying line is connected with the transport trolley, the counterweight wheel moves upward along the wedge-shaped block, and the other end of the limiting plate falls, and the workpiece can be conveyed between the conveying line and the transport trolley.

[0022] According to one embodiment of the present application, the end of the conveying line is further provided with a guide foot plate, the guide foot plate is formed with a guide groove in the shape of a trumpet, the lower end of the transport trolley is provided with a guide wheel, and the guide wheel moves along the guide groove; and the end of the guide foot plate close to the conveying line is further provided with a foot support plate to block the transport trolley.

[0023] Based on the above technical solution, the present application can achieve the following technical effects:

[0024] The hydraulic motor assembly production line of the present application conveys the workpiece through the conveying line, and the turnover press-fitting station and the cover combining and torque testing station are arranged on the conveying line, the turnover press-fitting station press-fits, turns over and secondarily press-fits the workpiece when the workpiece moves to the turnover press-fitting station, and then the cover combining and torque testing station combines the cover and tests the torque after the workpiece moves to the cover combining and torque testing station. In this process, the conveying line conveys the workpiece to the turnover press-fitting station and the cover combining and torque testing station for corresponding processing, without the need of carrying the workpiece, thereby simplifying the assembly process, reducing the assembly difficulty and ensuring the assembly precision.

[0025] The hydraulic motor assembly production line of the present application, the turnover press-fitting station comprises a press head, a first bearing structure and a clamping and turnover assembly, the first bearing structure can support the workpiece when the workpiece moves to the turnover press-fitting station, the two clamping heads of the clamping and turnover assembly can clamp the workpiece to stabilize the position of the workpiece, and the press head first press-fits the workpiece once; then the clamping and turnover assembly turns over the workpiece to turn over the workpiece by 180 degrees, and the press head secondarily press-fits the workpiece, i.e. the press head press-fits both ends of the workpiece, thereby ensuring the press-fitting effect.

[0026] The hydraulic motor assembly production line of the application is provided with a synchronous structure between the two clamping seats, the synchronous structure comprises a rotating connecting plate and two connecting rods, and under the action of the synchronous structure, the two clamping seats can be moved synchronously towards or away from each other to clamp and release the workpiece; the turnover driving member drives the two shaft sleeves to rotate synchronously through the key shaft and the two sets of transmission assemblies, the two shaft sleeves drive the two clamping heads to rotate synchronously through the two sets of transmission assemblies, and the stable turnover of the workpiece is ensured; the shaft sleeve rotates and slides with the key shaft, and the clamping seat is rotationally connected with the shaft sleeve, so that when the two clamping seats move towards or away from each other, the two shaft sleeves can also move towards or away from each other, and the rotation of the shaft sleeve can drive the clamping head to rotate through the transmission assembly without affecting the movement of the clamping seat;

[0027] The hydraulic motor assembly production line of the application comprises a lifting bearing frame and a lower support seat, the lifting bearing frame can move up and down relative to the lower support seat, and the movement direction of the lifting bearing frame is limited by the guide shaft; when the lifting bearing frame supports the workpiece after rising, the backing plate can move horizontally to the lower side of the support column to support the support column, so that the support strength of the lifting bearing frame is ensured, and the force of the pressing head is adapted; when the lifting bearing frame descends, the backing plate can move horizontally to avoid the support column, and the lifting bearing frame can descend;

[0028] The hydraulic motor assembly production line of the application comprises a torque structure, a second bearing structure and a pressing plate, the pressing plate can move to the middle above the workpiece, the second bearing structure can bear the workpiece and rise to be pressed by the pressing plate, so that the position of the end cover on the workpiece is stable and will not shake, and then the torque structure is used to perform torque on the workpiece; the working process is stable and has high precision;

[0029] The second bearing structure of the hydraulic motor assembly production line of the application comprises a support plate and a rotary plate, the support plate is driven to rise and fall, the support plate can drive the rotary plate and the workpiece thereon to move up and down, and the rotary plate can drive the workpiece to rotate to adapt to the processing requirement 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; 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 to contact the pressing piece;

[0030] The hydraulic motor assembly production line, the transport trolley and the conveying line are connected, the workpiece can be conveyed to the conveying line, the limiting assembly is arranged between the transport trolley and the conveying line, the limiting assembly comprises a limiting plate and a wedge-shaped block, the limiting plate is hingedly assembled, one end of the limiting plate is provided with a counterweight wheel, under the action of the counterweight wheel, the other end of the limiting plate is upwardly tilted, the limiting plate can limit the workpiece on the structure, and the workpiece is prevented from falling off, when the transport trolley and the conveying line gradually approach, the wedge-shaped block and the counterweight wheel gradually approach, the counterweight wheel moves upward along the wedge-shaped block, then the other end of the limiting plate falls, and the workpiece can be conveyed between the conveying line and the transport trolley; further, the limiting assembly is at least two groups, and is reversely arranged, at least one limiting plate is arranged on the conveying line, and at least one limiting plate is arranged on the transport trolley, when the two are not connected, the limiting plates limit the workpieces on the conveying line and the workpieces on the transport trolley respectively; when the two are connected, the wedge-shaped block releases the limiting action, and the workpieces can be conveyed between the two.

[0031] The hydraulic motor assembly production line, the end of the conveying line is provided with a guide foot plate matched with a guide wheel of the transport trolley, the movement direction of the transport trolley when the transport trolley is connected with the conveying line can be ensured, and the transport trolley and the conveying line can be aligned and connected; the guide groove has a trumpet-shaped opening, the guide wheel can enter the guide groove conveniently; the guide foot plate is provided with a foot support plate, the transport trolley can be blocked, and the position of the transport trolley is limited. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural schematic view of the hydraulic motor assembly production line of the application;

[0033] Figure 2 It is a structural schematic view of the turnover pressing station;

[0034] Figure 3 It is a structural schematic view of the pressing head installed on the support;

[0035] Figure 4 It is a structural schematic view of the first bearing structure supporting the material disc;

[0036] Figure 5 It is a structural schematic view of the first bearing structure;

[0037] Figure 6 It is a structural schematic view of the lifting bearing frame;

[0038] Figure 7 It is a structural schematic view of the lower support base;

[0039] Figure 8 It is a structural schematic view of the clamping turnover assembly installed on the support;

[0040] Figure 9 It is a structural schematic view of the clamping turnover assembly;

[0041] Figure 10 Front view of the clamping and flipping assembly;

[0042] Figure 11 Perspective view of the clamping and flipping assembly;

[0043] Figure 12 Structure diagram of the structure of the clamping seat being slidably assembled;

[0044] Figure 13 Structure diagram of the structure of the cap tightening torque station;

[0045] Figure 14 Structure diagram of the structure of the tightening torque structure;

[0046] Figure 15 Structure diagram of the structure of the second bearing structure;

[0047] Figure 16 Structure diagram of the structure of the pressing piece;

[0048] Figure 17 Structure diagram of the structure of the tray;

[0049] Figure 18 Structure diagram of the structure of the conveying line and the transport trolley;

[0050] Figure 19 Structure diagram of the structure of the limiting assembly;

[0051] Figure 20 Structure diagram of the structure of the transport trolley and the guide foot plate;

[0052] Figure 21 Structure diagram of the structure of the guide foot plate;

[0053] In the figure: 1-conveying line; 2-flipping and pressing station; 21-press head; 211-press head support; 212-first driving structure; 22-first bearing structure; 221-lifting bearing frame; 2211-upper plate member; 2212-lower plate member; 2213-guide shaft; 2214-support column; 2215-first limiting protrusion; 2216-support protrusion; 222-lower support base; 223-lifting driving cylinder; 224-pad plate; 225-second driving structure; 23-clamping and flipping assembly; 231-clamping head; 232-clamping base; 233-clamping driving member; 234-flipping driving member; 235-synchronization structure; 2351-rotary connecting plate; 2352-connecting rod; 236-flipping transmission assembly; 2361-key shaft; 2362-main transmission assembly; 2363-shaft sleeve; 2364-sub-transmission assembly; 237-carriage; 2371-first guide shaft; 238-third driving structure; 239-connecting frame; 24-support frame; 241-vertical rail; 3-cover closing and torque tightening station; 31-torque tightening structure; 311-mounting frame; 312-balance booster; 32-second bearing structure; 321-support plate; 3211-second guide shaft; 322-rotary plate; 3221-second limiting protrusion; 323-rotary bearing; 324-main driving member; 325- auxiliary driving member; 33-pressing member; 331-pressing frame; 3311-vertical support column; 3312-cross beam; 33121-horizontal sliding groove; 34-bottom plate; 35-vertical column; 4-transport trolley; 41-guide wheel; 5-workpiece; 51-end cover; 6-tray; 61-upper layer plate; 611-limiting protrusion; 612-handheld part; 62-lower layer 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

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0055] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0056] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale of the various parts shown in the drawings. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail because they would be understood that such techniques, methods, and apparatus are considered part of the art. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not limiting. Thus, other examples of the example embodiments can have different values. It is noted that like numbers and letters on the figures identify like parts throughout the several views, and thus, once an item is defined in one figure, it is not necessary to discuss it further in connection with other figures where it is understood that the item will be present.

[0057] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "transverse", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. 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 figures. For example, if the device in the 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.

[0059] 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. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] like Figures 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 provided. 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, which first presses the workpiece 5 once and then flips the workpiece 5 to press the workpiece 5 a second time. The pressed workpiece 5 is conveyed by the conveyor line 1 to the cover-closing and torque-applying station 3, which closes and torques the pressed workpiece 5.

[0061] The conveyor line 1 can extend in a straight line, and the conveyor line 1 includes two conveyor chains arranged in parallel and at intervals; 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.

[0062] As the 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. A limiting protrusion 611 is formed on the upper plate 61, so that the material tray 6 can support the workpiece 5 in a limited position. When the workpiece 5 is placed on the material tray 6, it can be in a vertical state.

[0063] As a preferred technical solution of this embodiment, the tray 6 is further provided with a handheld portion 612, which the operator can grasp and manually pull the workpiece 5 to the desired position. Specifically, two handheld portions 612 can be provided, and the two handheld portions 612 are respectively located at the front and rear ends of the upper plate 61.

[0064] The turnover press fitting station 2 is assembled on the conveying line 1, and can perform turnover press fitting on the workpiece 5 conveyed by the conveying line 1 without interfering with the conveying of the workpiece 5 by the conveying line 1. The turnover press fitting station 2 comprises a press head 21, a first bearing structure 22 and a clamping turnover assembly 23, which are all mounted on a support 24. The first bearing structure 22 is located between the two conveying chains of the conveying line 1, and when not in operation, the first bearing structure 22 is lower than the height of the conveying chains without affecting the conveying of the workpiece 5 by the conveying line 1; when turnover press fitting is needed, the first bearing structure 22 can be raised to support the tray 6; the press head 21 is located directly above the first bearing structure 22 and is used for press fitting the workpiece 5; and the clamping turnover assembly 23 is located between the press head 21 and the first bearing structure 22 and can clamp and turnover the workpiece 5.

[0065] The press head 21 is mounted on the support 24 in a lifting manner. Specifically, the press head 21 is mounted on a press head support 211, which comprises two vertical rods connected by end plates at their upper and lower ends. The two vertical rods of the press head support 211 pass through the support 24 and can vertically slide relative to the support 24. A first driving structure 212 is assembled on the support 24, and the telescopic end of the first driving structure 212 drives the press head support 211 to move the press head 21 up and down.

[0066] As a preferred technical solution of the embodiment, the first driving structure 212 can be, but is not limited to, a gas-liquid pressurized cylinder.

[0067] The first bearing structure 22 is used for supporting the tray 6 and the workpiece 5 thereon, and can raise the tray 6 and the workpiece 5 to the clamping turnover assembly 23 to facilitate clamping of the workpiece 5 by the clamping turnover assembly 23. The first bearing structure 22 comprises a lifting bearing frame 221, a lower support base 222 and a lifting driving cylinder 223. The lifting bearing frame 221 is in sliding cooperation with the lower support base 222, and the lifting driving cylinder 223 is fixed on the lower support base 222 and drives the lifting bearing frame 221 to move up and down relative to the lower support base 222. The lifting bearing frame 221 comprises upper and lower plate members 2211 and 2212 which are spaced apart and arranged in parallel and are connected into one body by a guide shaft 2213. The lower support base 222 is fixed on the support 24, the guide shaft 2213 passes through the lower support base 222, and the lifting bearing frame 221 can slide up and down relative to the lower support base 222.

[0068] As a preferred technical solution of the embodiment, the upper surface of the upper plate 2211 is provided with a first limiting protrusion 2215, and the bottom surface of the tray 6 is correspondingly provided with at least two positioning grooves. The first limiting protrusion 2215 can be inserted into the positioning groove of the tray 6 to position the tray 6. In the embodiment, the first limiting protrusion 2215 is provided as two, which are respectively arranged near a diagonal 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.

[0069] As a preferred technical solution of the embodiment, the upper surface of the upper plate 2211 is provided with at least two supporting protrusions 2216 to stably support the tray 6 in cooperation with the first limiting protrusion 2215. In the embodiment, the supporting protrusion 2216 is provided as two, which are respectively arranged near another diagonal of the upper plate 2211.

[0070] As a preferred technical solution of the embodiment, the lower supporting seat 222 is provided with a linear bearing, and the lower supporting seat 222 cooperates with the guide shaft 2213 through the linear bearing.

[0071] As a preferred technical solution of the embodiment, the guide shaft 2213 is provided as at least four, and the at least four guide shafts 2213 are distributed at four corners of the upper plate 2211 and the lower plate 2212.

[0072] As a preferred technical solution of the embodiment, the lower surface of the upper plate 2211 is further provided with a supporting column 2214, and the lower end surface of the supporting column 2214 is spaced apart from the lower plate 2212. Correspondingly, the upper surface of the lower supporting seat 222 is movably assembled with a backing plate 224, and the backing plate 224 can be dislocated from the supporting column 2214 without affecting the movement of the supporting column 2214. When the supporting column 2214 needs to play a supporting role, the backing plate 224 can be moved to the lower side of the supporting column 2214, and the supporting column 2214 is supported by the backing plate 224. Multiple supporting points can provide stable supporting force during pressing. Preferably, the backing plate 224 is slidably assembled on the lower supporting seat 222, and a second driving structure 225 is assembled on the lower supporting seat 222. The second driving structure 225 drives the backing plate 224 to slide. Preferably, the backing plate 224 is provided with an avoiding hole to facilitate avoiding the supporting column 2214. In the embodiment, the supporting column 2214 is provided as at least four, which are symmetrically distributed. The second driving structure 225 can be selected but is not limited to a pneumatic cylinder.

[0073] The clamping and overturning assembly 23 can clamp and overturn the workpiece 5. The clamping and overturning assembly 23 comprises two oppositely arranged clamping heads 231, the two clamping heads 231 are respectively rotationally arranged on two clamping seats 232, the two clamping seats 232 are slidingly arranged on a sliding frame 237, and the sliding frame 237 is slidingly arranged on the support 24. The two clamping heads 231 move towards or away from each other synchronously, so as to clamp or release the workpiece 5; the two clamping heads 231 rotate synchronously, so as to overturn the workpiece 5; the heights of the two clamping seats 232 are adjustable, so as to avoid the first bearing structure 22 and avoid collision when the workpiece 5 is overturned.

[0074] Specifically, the support 24 is provided with a vertical rail 241, the sliding frame 237 is slidingly arranged on the vertical rail 241 and slides along the vertical rail 241 under the driving of a third driving structure 238; the two clamping seats 232 are slidingly arranged on the sliding frame 237 and move towards or away from each other under the action of a clamping driving element 233; and the two clamping heads 231 rotate synchronously under the driving of an overturning driving element 234, so as to overturn the workpiece 5.

[0075] As a preferred technical solution of the embodiment, the sliding frame 237 can be provided with a horizontally extending first guide shaft 2371, and the two clamping seats 232 move along the first guide shaft 2371. Preferably, the first guide shaft 2371 is provided as at least two, and the at least two first guide shafts 2371 are parallel and spaced apart.

[0076] As a preferred technical solution of the embodiment, the clamping driving element 233 can be provided as two, the two clamping driving elements 233 are symmetrically arranged, the driving ends of the two clamping driving elements 233 are respectively connected to the two clamping seats 232, and the two clamping driving elements 233 drive the two clamping seats 232 and the clamping heads 231 on the two clamping seats 232 to move towards or away from each other. Preferably, the two clamping driving elements 233 are located between the two adjacent first guide shafts 2371. The clamping driving element 233 can be selected but is not limited to a pneumatic cylinder.

[0077] As a preferred technical solution of the embodiment, in order to ensure the synchronization of the movement of the two clamping seats 232 towards or away from each other, a synchronous structure 235 is arranged between the two clamping seats 232. The synchronous structure 235 comprises a rotation connecting plate 2351, the rotation connecting plate 2351 is located at the middle of the two clamping seats 232, the center of the rotation connecting plate 2351 is rotationally arranged, and the two ends of the rotation connecting plate 2351 are respectively hinged to the two clamping seats 232 through two connecting rods 2352.

[0078] As a preferred technical solution of the embodiment, the overturning driving member 234 drives the two clamping heads 231 to rotate synchronously through the overturning transmission assembly 236. The overturning transmission assembly 236 comprises a key shaft 2361, a main transmission assembly 2362, a shaft sleeve 2363 and a sub-transmission assembly 2364. The key shaft 2361 is rotatably supported by the two clamping seats 232. The overturning 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 seats 232 through the two sub-transmission assemblies 2364 respectively. The outer circumferential surface of the key shaft 2361 is symmetrically provided with the two shaft sleeves 2363. The two shaft sleeves 2363 are slidable along the key shaft 2361 and are rotatable with the key shaft 2361. The two clamping seats 232 are rotatably connected to the two shaft sleeves 2363 through bearings respectively. The overturning driving member 234 is connected to the key shaft 2361 through a connecting frame 239. The connecting frame 239 is mounted on the support 24 and is rotatably connected to the key shaft 2361. The main transmission assembly 2362 is mounted on the connecting frame 239. The two shaft sleeves 2363 drive the two clamping heads 231 to rotate through the sub-transmission assemblies 2364 respectively. The sub-transmission assembly 2364 is mounted on the shaft sleeve 2363 and is rotatable with the shaft sleeve 2363. The main transmission assembly 2362 and the sub-transmission assembly 2364 can be belt transmission assemblies. The driving wheel of the main transmission assembly 2362 is driven by the overturning driving member 234. The driven wheel of the main transmission assembly 2362 is rotatable with the key shaft 2361. The driving wheel of the sub-transmission assembly 2364 is fixedly sleeved on the shaft sleeve 2363. The driven wheel of the sub-transmission assembly 2364 is connected to the hinge shaft of the clamping head 231. The overturning driving member 234 can be a motor.

[0079] As a preferred technical solution of the embodiment, the vertical rails 241 can be provided in two. The two vertical rails 241 are arranged at intervals. The sliding frame 237 slides along the two vertical rails 241. The third driving structure 238 is arranged on the support 24. The telescopic end of the third driving structure 238 is connected to the middle of the sliding frame 237.

[0080] As a preferred technical solution of the embodiment, the third driving structure 238 can be a pneumatic cylinder.

[0081] The cover tightening torque station 3 comprises a torque tightening structure 31, a second bearing structure 32 and a pressing piece 33. The torque tightening structure 31, the second bearing structure 32 and the pressing piece 33 are directly or indirectly supported by the bottom plate 34. The second bearing structure 32 is located between the two conveying chains of the conveying line 1. The second bearing structure 32 is used for supporting the 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 tightening structure 31 is located above the workpiece 5 and tightens the end cover 51 of the workpiece 5.

[0082] The torque structure 31 is assembled on the mounting seat, the mounting seat is fixed on the mounting frame 311, the mounting frame 311 comprises two parallel horizontal rods, and the two ends of the two horizontal rods are connected into one body; the vertical column 35 is fixed on the bottom plate 34, the balance booster 312 is sleeved on the vertical column 35, and the two horizontal rods slide through the balance booster 312. The balance booster 312 can rotate and slide up and down along the vertical column 35, and the horizontal rod can slide horizontally relative to the balance booster 312. In this way, the torque structure 31 can realize sliding up and down, horizontal swing and horizontal sliding, and then can reach the required position to twist the torque.

[0083] The second bearing structure 32 supports the workpiece 5 on the tray 6, and the second bearing structure 32 comprises a support plate 321 and a rotary plate 322, the rotary plate 322 is installed on the support plate 321 through a rotary bearing 323, the tray 6 is supported by the rotary plate 322, the support plate 321 can drive the rotary plate 322 to move up and down, and the rotary plate 322 can drive the tray 6 to rotate relative to the support plate 321.

[0084] The lower end of the support plate 321 is fixed with the second guide shaft 3211, the second guide shaft 3211 penetrates through the bottom plate 34, and the bottom plate 34 cooperates with the second guide shaft 3211 through a linear bearing, so that the lifting movement of the support plate 321 relative to the bottom plate 34 is limited. The second guide shaft 3211 can be provided as at least two, in the embodiment, in order to ensure the stability of the movement, the second guide shaft 3211 is provided as four, which are respectively located at four corners of the support plate 321.

[0085] The upper surface of the rotary plate 322 is formed with the second limiting protrusion 3221, and the second limiting protrusion 3221 is provided as at least two, the at least two second limiting protrusions 3221 can be inserted into the positioning groove below the tray 6, so as to limit the position of the tray 6. In the embodiment, the second limiting protrusion 3221 is provided as two, and the two second limiting protrusions 3221 are oppositely arranged. The upper surface of the rotary plate 322 is also provided with a gasket for supporting the tray 6. The second limiting protrusion 3221 can be provided as a special-shaped protrusion, and the size of the top of the second limiting protrusion 3221 is appropriately reduced, so as to be inserted into the positioning groove.

[0086] As a preferred technical scheme of the embodiment, the support plate 321 is driven by a driving member to move up and down, in order to ensure the stability of the support, the driving member comprises a main driving member 324 located at the center and an auxiliary driving member 325 located outside the main driving member 324, and the main driving member 324 and the auxiliary driving member 325 jointly drive the support plate 321 to move up and down. Preferably, the auxiliary driving member 325 is provided as two and symmetrically located on the two sides of the main driving member 324. The main driving member 324 and the auxiliary driving member 325 can be selected but are not limited to a pneumatic cylinder, and the main driving member 324 and the auxiliary driving member 325 are assembled on the bottom plate 34, and the driving end of the main driving member 324 and the auxiliary driving member 325 drives the support plate 321 to move.

[0087] As the preferred technical solution of the embodiment, the support plate 321 is further provided with a locking structure for the rotating plate 322. Specifically, the lower surface of the support plate 321 is provided with a locking cylinder, the telescopic end of the locking cylinder extends through the support plate 321, the lower surface of the rotating plate 322 is provided with a locking groove, and the telescopic end of the locking cylinder can extend into the locking groove to lock the rotating plate 322, thereby preventing the rotating plate 322 from rotating during the cover pressing process. Preferably, the upper surface of the support plate 321 is further provided with a guide plate, the guide plate is provided with a guide hole, and the telescopic end of the locking cylinder can be guided by the guide hole.

[0088] As the preferred technical solution of the embodiment, in order to rotate the workpiece 5, the hand-held part 612 of the tray 6 is rotated to rotate the tray 6 to the desired position.

[0089] The pressing piece 33 is used to press the end cover 51 on the workpiece 5, so as to facilitate the work of the torque structure 31. The pressing piece 33 is a square bar, and the pressing piece 33 is slidingly assembled on the pressing frame 331. The pressing frame 331 is fixedly assembled on the bottom plate 34. The pressing frame 331 is parallel and symmetrically arranged in two groups. Each group of the pressing frame 331 includes two vertical support columns 3311. The bottom ends of the two vertical support columns 3311 are fixed to the bottom plate 34. The top ends of the two vertical support columns 3311 are connected with a cross beam 3312. The two cross beams 3312 are oppositely provided with horizontal sliding grooves 33121. The two ends of the pressing piece 33 respectively extend into the two horizontal sliding grooves 33121. The pressing piece 33 can be horizontally slid along the two horizontal sliding grooves 33121.

[0090] As the preferred technical solution of the embodiment, the pressing piece 33 is provided with a hand-held piece, which facilitates the grasping and pulling of the pressing piece 33 to slide.

[0091] As the preferred technical solution of the embodiment, the horizontal sliding groove 33121 extends from one end of the cross beam 3312 to the middle position. When the pressing piece 33 slides to the middle position of the horizontal sliding groove 33121, the pressing piece 33 can press the end cover 51. When the pressing piece 33 is not needed to press the end cover 51, the pressing piece 33 can be slid to the end of the cross beam 3312 to avoid interference. Preferably, one end of the horizontal sliding groove 33121 located at the middle position of the cross beam 3312 is provided with an upper stop piece to limit the position of the pressing piece 33 and prevent the pressing piece 33 from falling out.

[0092] In order to facilitate the conveying of the tray 6 and the workpiece 5, a transport trolley 4 is further provided. The front end of the transport trolley 4 can be connected with the conveying line 1 to convey the tray 6 and the workpiece 5 to be assembled thereon to the conveying line 1, or to transfer the workpiece 5 assembled on the conveying line 1 to the transport trolley 4.

[0093] A limiting assembly 7 is arranged between the conveying line 1 and the transport trolley 4, the limiting assembly 7 comprises a limiting plate 71 and a wedge-shaped block 73, the limiting plate 71 and the wedge-shaped block 73 are respectively arranged on the conveying line 1 and the transport trolley 4, the limiting plate 71 is hingedly assembled, one end of the limiting plate 71 is assembled with a counterweight wheel 72, in the initial state, the other end of the limiting plate 71 is upwardly tilted under the action of the counterweight wheel 72 to limit; when docking, the wedge-shaped block 73 approaches the counterweight wheel 72, the counterweight wheel 72 gradually moves upward along the wedge surface of the wedge-shaped block 73, so that the other end of the limiting plate 71 falls, in this way, the workpiece 5 can be conveyed between the conveying line 1 and the transport trolley 4.

[0094] As a preferred technical solution of the embodiment, the limiting assembly 7 can be provided as at least two groups, the limiting plate 71 of at least one group of limiting assemblies 7 is located at the end of the conveying line 1, and the wedge-shaped block 73 is located at the end of the transport trolley 4; the wedge-shaped block 73 of at least one group of limiting assemblies 7 is located at the end of the conveying line 1, and the limiting plate 71 is located at the end of the transport trolley 4. In this way, when the conveying line 1 and the transport trolley 4 are not docked, the ends of the limiting plates 71 on the conveying line 1 and the transport trolley 4 are upwardly tilted under the action of the counterweight wheel 72, and protrude from the conveying plane of the conveying line 1 and the bearing plane of the transport trolley 4, which can block the workpieces 5 on the conveying line 1 and the transport trolley 4, preventing them from falling out.

[0095] As a preferred technical solution of the embodiment, at least one limiting plate 71 and at least one wedge-shaped block 73 are arranged at the two ends of the conveying line 1, which can limit the two ends of the conveying line 1 and facilitate the docking of the two ends of the conveying line 1 with the transport trolley 4.

[0096] In order to ensure that the transport trolley 4 can be positionally aligned when it is docked with the conveying line 1, a guide foot plate 8 is arranged at the end of the conveying line 1 on the ground, the guide foot plate 8 is formed with a guide groove 81, and the lower end of the transport trolley 4 is provided with a guide wheel 41, the guide wheel 41 can move along the guide groove 81, thereby limiting the movement direction of the transport trolley 4 to accurately dock with the conveying line 1.

[0097] As a preferred technical solution of the embodiment, the opening of the guide groove 81 is in a trumpet shape, which facilitates the entry of the guide wheel 41 into the guide groove 81.

[0098] As a preferred technical solution of the embodiment, the end of the guide foot plate 8 close to the conveying line 1 is further provided with a foot support plate 82, which can block the transport trolley 4 to limit the position of the transport trolley 4.

[0099] The hydraulic motor assembly production line of the embodiment, the workpiece 5 required to be assembled is a hydraulic motor, in addition to the turnover press-fitting station 2 and the cover closing and torque station 3, other workstations can also be arranged, such as a parts assembly station can be arranged upstream of the turnover press-fitting station 2.

[0100] In operation, the transport trolley 4 can be connected with the feeding end of the conveying line 1 to carry the tray 6, the tray 6 is moved to the conveying line 1, and then is transported to the component assembly station, the motor housing and the internal structure can be placed at the component assembly station;

[0101] The conveying line 1 transports the workpiece 5 to the turnover press-fitting station 2, the lifting carrier 221 of the first bearing structure 22 is driven to rise, the first limiting protrusion 2215 is limited and connected with the bottom of the tray 6, the lifting carrier 221 supports the tray 6 and the workpiece 5 thereon to rise, after being in position, the second driving structure 225 drives the pad 224 to slide, and the supporting column 2214 is supported by the pad 224. Then, the clamping driving part 233 of the clamping turnover assembly 23 drives the two clamping seats 232 to drive the two clamping heads 231 to move towards each other to clamp the workpiece 5. Then, the press head 21 is driven to press-fit the workpiece 5 under the driving of the first driving structure 212, after the first press-fitting, the press head 21 rises, the third driving structure 238 drives the sliding frame 237 to slide upwards, the sliding frame 237 drives the clamping seat 232 and the clamping head 231 to slide upwards by a distance, after leaving a turnover space, the turnover driving part 234 drives the two clamping heads 231 to rotate synchronously by 180 degrees, then the third driving structure 238 drives the sliding frame 237 to slide downwards, the workpiece 5 is placed on the tray 6, and the press head 21 press-fits the workpiece 5 again to realize the second press-fitting.

[0102] The conveying line 1 transports the press-fitted workpiece 5 to the cover combining and torque tightening station 3, the end cover 51 is placed at the top end of the workpiece 5, and the press part 33 is slid to the middle position of the two cross beams 3312. Then, the supporting plate 321 of the second bearing structure 32 rises under the driving action of the main driving part 324 and the auxiliary driving part 325, the swivel plate 322 thereon rises together, the second limiting protrusion 3221 on the swivel plate 322 is inserted into the bottom of the tray 6, the supporting plate 321 supports the tray 6 and the workpiece 5 thereon, and the supporting plate 321 continues to drive the workpiece 5 to rise to be pressed by the press part 33. Then, the torque tightening structure 31 can be moved to position to perform the torque tightening work. After the torque tightening is completed, the swivel plate 322 is rotated to adjust the position of the workpiece 5 to adapt to the next station. The second bearing structure 32 descends, the tray 6 falls on the conveying line 1, and the conveying line 1 can drive the tray 6 and the workpiece 5 thereon to the next station.

[0103] The workpiece 5 processed by the assembly production line can be transported by the transport trolley 4 connected with the discharging end of the conveying line 1.

[0104] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A hydraulic motor assembly production line characterized by, The utility model relates to a kind of workpiece press-fit and cover combination and torque station, including: Conveying line (1) for conveying workpiece (5); Turnover press-fit station (2) is arranged on conveying line (1), and turnover press-fit station (2) is turned over workpiece (5) after once press-fit to workpiece (5), then secondary press-fit is carried out; Cover combination and torque station (3) is arranged on conveying line (1), and cover combination and torque station (3) is located downstream of turnover press-fit station (2), and cover combination and torque station (3) is carried out to cover combination and torque station (3) after press-fit workpiece (5); The turnover press-fit station (2) includes: Press head (21) is carried out to press-fit workpiece (5); First bearing structure (22) supports workpiece (5); Clamping turnover assembly (23) is located between press head (21) and first bearing structure (22), and clamping turnover assembly (23) includes two oppositely arranged clamping heads (231), two clamping heads (231) are respectively rotationally assembled in two clamping seats (232), clamping drive element (233) drives two clamping seats (232) to move synchronously towards or away from each other, and turnover drive element (234) drives two clamping heads (231) to rotate synchronously; Cover combination and torque station (3) includes: Torque structure (31) is assembled on mounting seat, mounting seat is fixed on mounting frame (311), and mounting frame (311) includes two parallel horizontal rods, two horizontal rods slide through balance booster (312), and balance booster (312) can rotate and move up and down along vertical column (35); Second bearing structure (32) supports workpiece (5), and second bearing structure (32) drives workpiece (5) to lift and rotate; Pressing piece (33) is slidably assembled on press frame (331), and press frame (331) is formed with two horizontally-slotted openings (33121) opposite to each other, two ends of pressing piece (33) extend into two horizontally-slotted openings (33121) respectively, and pressing piece (33) can slide to the top of workpiece (5) after cover combination; Further including transport trolley (4), the transport trolley (4) is connected with the conveying line (1), and at least two sets of limiting components (7) are arranged between the transport trolley (4) and the conveying line (1), the at least two sets of limiting components (7) are reversely assembled, the limiting component (7) includes limiting plate (71) and wedge block (73), the limiting plate (71) is hingedly assembled, the limiting plate (71) and the wedge block (73) are correspondingly arranged on the conveying line (1) and the transport trolley (4) respectively, one end of the limiting plate (71) is assembled with counterweight wheel (72), in initial state, the other end of the limiting plate (71) is raised upward under the action of counterweight wheel (72) to limit;When connecting, the counterweight wheel (72) moves upward along the wedge block (73), the other end of the limiting plate (71) falls, and workpiece (5) can be conveyed between the conveying line (1) and the transport trolley (4).

2. The hydraulic motor assembly production line of claim 1, wherein Two clamping seats (232) are slidingly assembled, and a synchronous structure (235) is arranged between the two clamping seats (232), the synchronous structure (235) comprises a rotating connecting plate (2351) located at the middle of the two clamping seats (232), and the center of the rotating connecting plate (2351) is rotatably 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. The hydraulic motor assembly production line of claim 1, wherein, The turnover driving member (234) drives the two clamping heads (231) to synchronously rotate through a key shaft (2361), the turnover driving member (234) drives the key shaft (2361) to rotate, two shaft sleeves (2363) are arranged on the key shaft (2361) in a rotating and sliding mode, the two clamping seats (232) are rotatably connected with the two shaft sleeves (2363) respectively, and the shaft sleeves (2363) drive the clamping heads (231) to rotate through a sub-transmission assembly (2364).

4. The hydraulic motor assembly production line of claim 1, wherein, The first bearing structure (22) comprises a lifting bearing frame (221) and a lower support base (222), the lifting bearing frame (221) comprises upper and lower plate members (2211) and (2212) which are arranged at intervals, a guide shaft (2213) is arranged between the upper and lower plate members (2211) and (2212), the guide shaft (2213) is slidingly matched with the lower support base (222) to limit the lifting bearing frame (221) to move up and down, a lifting driving cylinder (223) drives the lifting bearing frame (221) to move, a support column (2214) is vertically arranged below the upper plate member (2211), the lower support base (222) is provided with a backing plate (224), after the lifting bearing frame (221) is lifted, the backing plate (224) moves horizontally to the position below the support column (2214) to support the support column (2214).

5. The hydraulic motor assembly production line of claim 1, wherein, The second bearing structure (32) comprises a support plate (321) and a rotary plate (322), the rotary plate (322) is supported by the support plate (321) through a rotary bearing (323), a workpiece (5) is supported by the rotary plate (322), the support plate (321) drives the rotary plate (322) and the workpiece (5) to move up and down, and the rotary plate (322) drives the workpiece (5) to rotate.

6. The hydraulic motor assembly production line of claim 1, wherein, The end of the conveying line (1) is also provided with a guide foot plate (8), the guide foot plate (8) is formed with a guide groove (81) which is opened and trumpet-shaped, the lower end of the transport trolley (4) is provided with a guide wheel (41), and the guide wheel (41) moves along the guide groove (81); the end of the guide foot plate (8) close to the conveying line (1) is also provided with a foot support plate (82) to block the transport trolley (4).

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