A production line for automatically disassembling connecting rods and pressing tiles

Abstract

The present invention belongs to the technical field of automated equipment, and specifically relates to a connecting rod automatic disassembly and tile pressing production line; the production line of the present invention comprises: a connecting rod feeding conveyor line, a barcode scanner, an automatic color marking component, a right manipulator, a middle manipulator, a left manipulator, a disassembly device and a tile pressing device; the present invention integrates traditional manual discrete operation methods such as connecting rod scanning, color marking, connecting rod bolt disassembly, connecting rod tile pressing, etc. to form an automated system through integrated design, saving at least 4 manpower, with a high degree of equipment automation, greatly improving production efficiency and reducing the probability of errors.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic assembly, and in particular relates to a production line for automatically disassembling connecting rods and pressing tiles. Background Art

[0002] Each engine requires 4 connecting rods. Before assembling the connecting rods, the connecting rod bolts need to be loosened, the connecting rod body and connecting rod cover need to be disassembled, and the tiles need to be pressed separately. The traditional method is that manual worker 1 places the connecting rods on the line body tray one by one, and scans the connecting rod QR code with a handheld barcode scanner. Four connecting rods of the same weight are grouped together. Manual worker 2 uses four markers to paint green, white, blue and yellow colors on the joints of the connecting rod body and the connecting rod cover to ensure that the disassembled connecting rod body and connecting rod cover are installed in pairs, and the fixed colors are installed in the fixed position of the engine. Manual worker 3 places the connecting rod on the bolt disassembly equipment, and manually operates the equipment to loosen the connecting rod bolts. Only two connecting rods can be disassembled at the same time. Manual worker 4 picks up the two sets of disassembled connecting rod bodies and connecting rod covers to the pressing equipment, and then manually places the four tiles to the pressing position, and operates the equipment to press the tiles into the connecting rod body and connecting rod cover respectively.

[0003] Automated assembly is not achieved in the existing technology, and multiple process links are completed manually, which takes up and wastes manpower, and the production rhythm is inconsistent, the production capacity is unstable, and the operation efficiency is low.

[0004] Manual painting of connecting rods is extremely inefficient and manual work often causes fatigue, resulting in serious problems such as incorrect and uneven painting.

[0005] At present, the tiles are loaded manually, which easily touches the inner working surface of the tiles and contaminates the workpiece.

[0006] In addition, the connecting rod tile conveyor line is driven by an electric motor, which consumes extremely high energy. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of low manual operation efficiency, unstable production capacity and discontinuous production rhythm in the prior art, and to provide a connecting rod automatic disassembly and pressing tile production line that can fully realize the automatic disassembly and pressing of the connecting rod.

[0008] The technical solution adopted by the present invention to solve the technical problem is:

[0009] A production line for automatically disassembling connecting rods and pressing tiles, characterized in that it includes:

[0010] A connecting rod feeding conveyor line; the connecting rod feeding conveyor line is provided with a plurality of trays for placing connecting rods;

[0011] A barcode scanner is arranged at the head end of the connecting rod feeding conveyor line; a QR code is printed on the side end surface of the connecting rod cover of each connecting rod, which is used to store the weight information of the connecting rod, and the barcode scanner is used to scan the QR code information and send it to the PLC controller;

[0012] An automatic color marking assembly disposed above the connecting rod feeding conveyor line, the automatic color marking assembly comprising four color marking machines disposed in parallel, for marking four connecting rods with four different colors at the same time;

[0013] The right manipulator, the middle manipulator and the left manipulator are arranged in sequence from right to left; the right manipulator grabs the color-marked connecting rod to the disassembly station to disassemble the connecting rod body and the connecting rod cover;

[0014] Disassembly device; loosen the bolts of the connecting rod marked by the color marking machine, and disassemble it into the connecting rod body and the connecting rod cover; the two mechanical claws of the middle manipulator simultaneously grab the connecting rod body and the connecting rod cover of the same color, and unfold them in the left and right directions, and unfold the connecting rod body and the connecting rod cover in the left and right directions and place them in the tile pressing station;

[0015] And a tile pressing device; used for pressing the tile onto the inner ring of the connecting rod body or the connecting rod cover.

[0016] Furthermore, the automatic color marking component also includes a marking bracket arranged on both sides of the connecting rod feeding conveyor line, a first lifting cylinder installed on the upper end of the marking bracket, and a marking mounting frame fixedly installed on the telescopic end of the first lifting cylinder. Four color marking machines are installed in parallel on the marking mounting frame on the left and right; the color marking machine is integrated with a color recognition sensor to detect whether the marking color is qualified.

[0017] Furthermore, it also includes a defective product unloading mechanism arranged at the tail end of the connecting rod feeding conveyor line. The right manipulator grabs the connecting rod marked as unqualified to the defective product unloading mechanism, and continues to load it to the disassembly station after the manual color marking is completed.

[0018] Furthermore, the disassembly device comprises a total of four disassembly mechanisms, which are mounted on a disassembly frame, and every two disassembly mechanisms form a group of disassembly components, and the disassembly mechanisms comprise: a connecting rod clamping cylinder which is telescopically mounted on the disassembly frame, a connecting rod placing plate mounted on the disassembly frame, a bolt loosening mechanism which is slidably mounted on the disassembly frame and is used to press the connecting rod body from above when loosening the bolts, and a connecting rod body pressing mechanism which is slidably mounted on the disassembly frame; a second telescopic cylinder is installed between the two disassembly mechanisms of the same group of disassembly components, and a disassembly mounting frame is installed at the telescopic end of the second telescopic cylinder, and the bolt loosening mechanisms of the two disassembly mechanisms of the same group of disassembly components are both installed on the same disassembly mounting frame.

[0019] Furthermore, a connecting rod stretching mechanism is also provided under the connecting rod placement plate, and the connecting rod stretching mechanism includes a fixed block and a movable block opposite to the fixed block, and the fixed block and the movable block extend upward from under the connecting rod placement plate; when the right manipulator places the connecting rod on the connecting rod placement plate, the fixed block and the movable block fit together, and the fixed block and the movable block are just stuck in the mounting hole in the middle of the connecting rod; a third telescopic cylinder is installed on the disassembly frame in the middle of the two disassembly mechanisms of each group of disassembly components, and the telescopic ends of the third telescopic cylinder are fixedly connected to the two movable blocks on both sides, that is, the two movable blocks share one third telescopic cylinder, and the two connecting rods are stretched apart at the same time.

[0020] Furthermore, a suction hole is provided on the connecting rod placement plate on the outer side of the end surface where the connecting rod body and the connecting rod cover are combined, and a suction cylinder is correspondingly provided under the suction hole, and the suction cylinder is connected to the vacuum suction pump.

[0021] Furthermore, a fourth telescopic cylinder is installed on the disassembly frame between the two connecting rod body pressing mechanisms of the same group of connecting rod disassembly assemblies; a pressing mounting frame is installed at the telescopic end of the fourth telescopic cylinder, and the connecting rod body pressing mechanism includes a second lifting cylinder installed on the pressing mounting frame and a pressing block installed at the lower end of the second lifting cylinder.

[0022] Furthermore, the tile press-fitting device comprises: a connecting rod body / connecting rod cover placing platform, a press-fitting frame, a press-fitting cylinder installed on the press-fitting frame, a first mounting frame and a second mounting frame slidably installed on the press-fitting frame; the telescopic end of the press-fitting cylinder is connected to the first mounting frame, and the second mounting frame is arranged close to the connecting rod body / connecting rod cover placing platform; the upper end of the second mounting frame is provided with a tile placing platform, and two guide inclined blocks are arranged oppositely above the left and right sides of the tile placing platform, and the closer to the connecting rod body / connecting rod cover direction, the closer the distance between the two guide inclined blocks; the first mounting frame A third mounting frame is arranged at the upper end of the mounting frame, a center block is fixedly arranged at the front end of the third mounting frame, the front end of the third mounting frame has a guide groove extending in the left and right directions, two side pressure blocks are slidably connected in the guide groove, and the two side pressure blocks are symmetrically arranged on the left and right sides of the center block; spring mounting holes are arranged on the opposite sides of the center block and the side pressure blocks, a second spring is installed in the spring mounting hole, and the side pressure block is fitted between the two guide inclined blocks; an upper pressure block is also arranged on the upper side surface of the center block, and the left and right sides of the upper pressure block exceed the center block for pressing the upper end surface of the tile.

[0023] Furthermore, a first guide rod is fixed on the second mounting frame, the first guide rod passes through the first mounting frame, and a first spring is sleeved on the first guide rod between the first mounting frame and the second mounting frame.

[0024] Furthermore, it also includes an automatic tile loading device, which includes: a tile loading bracket, a conveying support bracket fixedly installed above the tile loading bracket, a tile loading cylinder installed on the tile loading bracket, a driving pulley (not shown) rotatably installed at one end of the conveying support bracket, a driven pulley (not shown) rotatably installed at the other end of the conveying support bracket, a tile conveyor belt used to connect the driving pulley and the driven pulley, and a rotating rod installed on the rotating shaft of the driving pulley through a one-way bearing; the tile loading bracket is provided with a slide groove parallel to the telescopic direction of the tile loading cylinder, A first slider and a second slider are slidably installed in the slide groove; the first slider is fixedly connected to the telescopic shaft of the tile feeding cylinder through a first connecting rod; one end of the rotating rod is installed on the outer ring of the one-way bearing, and the other end has a third long hole and is connected to the second slider through a second connecting rod; a push rod is fixedly installed on the telescopic end of the tile feeding cylinder, and a third connecting rod is installed at the end of the push rod perpendicular to it, and the third connecting rod is inserted into the third long hole; the first slider has a first long hole, and the second slider has a second long hole, the first connecting rod is inserted into the first long hole, and the second connecting rod is inserted into the second long hole.

[0025] The beneficial effects of the connecting rod automatic disassembly and tile pressing production line of the present invention are:

[0026] 1. The traditional manual discrete operation methods such as connecting rod scanning, color marking, connecting rod bolt disassembly, connecting rod tile pressing and so on are integrated into an automated system, which saves at least 4 manpower. The equipment has a high degree of automation, greatly improves production efficiency and reduces the probability of errors.

[0027] 2. Integrating the color recognition sensor into the color marking machine can accurately determine whether the marking colors of the four connecting rods are qualified, thus improving work efficiency and accuracy.

[0028] 3. Install the one-way bearing on the rotating shaft of the driving pulley, and use the reciprocating motion of the tile feeding cylinder to realize the stepping conveying of the tiles. Compared with the stepper motor drive, it greatly saves costs and energy consumption, and the control method is simpler.

[0029] 4. The connecting rod tiles are automatically loaded. The outer end surface of the tile is grabbed by the tile grabbing robot for loading. During the tile pressing process, only the front end surface of the tile is touched, and the inner circle surface of the tile is not touched, so as to avoid contamination of the installation surface of the tile and the crank and improve the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Figure 1It is a three-dimensional diagram of the overall structure of the production line for automatic disassembly and installation of tiles of the embodiment of the present invention;

[0032] Figure 2 is a three-dimensional diagram of a color automatic marking component according to an embodiment of the present invention;

[0033] Figure 3 3. It is a stereoscopic diagram of a defective product unloading mechanism and a right manipulator according to an embodiment of the present invention;

[0034] Figure 4 yes Figure 1 Enlarged view of part A in the middle;

[0035] Figure 5 is a three-dimensional diagram of a disassembly device according to an embodiment of the present invention;

[0036] Figure 6 This is a structural diagram of the disassembly device of an embodiment of the present invention after removing some parts;

[0037] Figure 7 It is a three-dimensional diagram of a tile pressing device and a tile automatic feeding device according to an embodiment of the present invention;

[0038] Figure 8 yes Figure 7 The structure diagram of the middle part;

[0039] Fig. 9 This is the structural diagram of the tile automatic feeding device after some parts are missing;

[0040] Fig.10 This is an enlarged view of the structure of the automatic tile feeding device;

[0041] Fig.11 This is an enlarged view of the partial structure of the tile pressing device.

[0042] In the figure: 1. tray, 2. connecting rod feeding conveyor line, 3. automatic color marking component, 31. color marking machine, 32. marking bracket, 33. first lifting cylinder, 34. marking mounting frame, 35. guide column, 4. unqualified product unloading mechanism, 5. disassembly device, 50. disassembly frame, 51. connecting rod clamping cylinder, 52. connecting rod placement plate, 521. suction hole, 53. bolt loosening mechanism, 54. second telescopic cylinder, 55. disassembly mounting frame, 56. fixed block, 57. movable block, 5 8. The third telescopic cylinder, 59. The limit column, 510. The suction cylinder, 511. The clamping block, 5111. The clamping port, 512. The fourth telescopic cylinder, 513. The pressing mounting frame, 514. The second lifting cylinder, 515. The pressing block, 6. The tile pressing device, 60. The connecting rod body / connecting rod cover placement table, 61. The pressing frame, 62. The pressing cylinder, 63. The first mounting frame, 64. The second mounting frame, 65. The guide bevel block, 66. The third mounting frame, 660. The guide groove, 67. The center block , 68, side pressure block, 69, second spring, 610, upper pressure block, 611, first guide rod, 612, first spring, 614, tile placement table, 7, tile automatic feeding device, 71, tile feeding bracket, 710, slide, 72, conveying support frame, 73, tile feeding cylinder, 76, tile conveyor belt, 77, one-way bearing, 78, rotating rod, 781, third long hole, 79, first slider, 791, first long hole, 711, second slider, 7111, second long hole, 7 12. The first connecting rod, 713. The second connecting rod, 714. The push rod, 715. The third connecting rod, 716. The support bar, 717. The protective cover, 718. The tile grabbing robot, 719. The limit block, 8. The connecting rod, 81. The connecting rod body, 82. The connecting rod cover, 11. The truss, 12. The right robot, 13. The middle robot, 131. The rotating cylinder, 132. The swing rod, 133. The mechanical claw, 134. The claw mounting frame, 14. The left robot, 15. The tile, 16. The unloading conveyor line body. DETAILED DESCRIPTION

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0044] like Figure 1-Figure 11The specific embodiment of the connecting rod automatic disassembly and tile pressing production line of the present invention shown in the figure includes a connecting rod feeding conveyor line 2, a plurality of trays 1 for placing connecting rods 8 arranged on the connecting rod feeding conveyor line 2, an automatic color marking component 3 arranged above the connecting rod feeding conveyor line 2, a truss 11 arranged on the side of the connecting rod feeding conveyor line 2, a defective product unloading mechanism 4 arranged at the tail end of the connecting rod feeding conveyor line 2, a disassembly device 5 for disassembling the connecting rod 8 into a connecting rod body 81 and a connecting rod cover 82, a tile pressing device 6 for pressing tiles 15 into the inner circles of the connecting rod body 81 and the connecting rod cover 82 respectively, and an automatic tile loading device 7 for loading the tiles 15.

[0045] The right manipulator 12, the middle manipulator 13 and the left manipulator 14 are installed on the truss 11 from right to left in sequence; the right manipulator 12 is used to grab the connecting rod 8 with qualified marks to the disassembly device 5, and grab the connecting rod 8 with unqualified marks to the unqualified product unloading mechanism 4. The middle manipulator 13 grabs the disassembled connecting rod body 81 and the connecting rod cover 82 to the tile pressing device 6. The left manipulator 14 grabs the connecting rod body 81 and the connecting rod cover 82 with the pressed tile 15 and puts them on the unloading conveyor line body 16.

[0046] A QR code is printed on the side end surface of the connecting rod cover 82 of each connecting rod 8 to store the weight information of the connecting rod 8. A barcode scanner is provided on the side of the head end of the connecting rod feeding conveyor line 2 to read the QR code information on the connecting rod 8 and send it to the PLC controller for storage. The connecting rod feeding conveyor line 2 has multiple stoppers to limit the tray 1 to a specific station, wherein a stopper is provided at the barcode scanner position.

[0047] See also Figure 2 The color automatic marking assembly 3 includes four color marking machines 31 arranged in parallel, each color marking machine 31 has a corresponding stopper, and the color marking machine 31 is integrated with a color recognition sensor. The color automatic marking assembly 3 includes a marking bracket 32 ​​arranged on both sides of the connecting rod feeding conveyor line 2, a first lifting cylinder 33 installed on the upper end of the marking bracket 32, and a marking mounting frame 34 fixedly installed on the telescopic end of the first lifting cylinder 33. The four color marking machines 31 are installed on the marking mounting frame 34 in parallel. Guide columns 35 are fixedly arranged on both ends of the marking mounting frame 34. The guide columns 35 pass through the guide holes on the marking bracket 32 ​​to guide the up and down movement of the marking mounting frame 34.

[0048] The color marking machine 31 marks the connection between the connecting rod cover 82 and the connecting rod body 81 of the connecting rod 8, and the four connecting rods 8 are sprayed with four different colors respectively.

[0049] The working process of the color automatic marking component 3 is as follows: when the four pallets 1 all reach the corresponding four stoppers, the first lifting cylinder 33 drives the four color marking machines 31 to descend, and sends the four color marking machines 31 to the right sections of the four connecting rods 8 respectively, and marks them at the same time, marking the four colors of green, white, blue and yellow in sequence. After the marking is completed, the four color recognition sensors recognize and confirm the color marks on the end faces of the connecting rods 8 to determine whether they are marked? Is the color correct? Is the mark uniform? Then the first lifting cylinder 33 rises to the initial position. If any connecting rod 8 is marked unqualified, the color marking action is triggered again, the first lifting cylinder 33 descends again, and the connecting rod 8 that failed the color marking last time is re-marked, the color recognition sensor recognizes again, and the first lifting cylinder 33 returns to the initial position again. Each group of connecting rods 8 is only allowed to be color marked twice. If the color recognition fails twice in a row, the four connecting rods 8 of this group are judged as unqualified, and the PLC controller binds the unqualified label. If the color marking is qualified, the PLC controller binds the qualified label. After the label binding is completed and there is no accumulation of pallets 1 in the stopper in front of the grabbing station, the four stoppers of the color automatic marking component 3 are released in sequence, and the four pallets 1 flow into the grabbing station of the connecting rod 8.

[0050] See also Figure 3 , the four connecting rods 8 of the connecting rod 8 grabbing station are grabbed by the right manipulator 12, and the right manipulator 12 is installed on the truss 11 by sliding left and right. The right manipulator 12 has two clamps and can grab two connecting rods 8 at the same time. If the four connecting rods 8 in this group recorded by the PLC controller are unqualified products, the PLC controller sends a command to the right manipulator 12 to put the four connecting rods 8 in groups of two on the unqualified product unloading mechanism 4. If the four connecting rods 8 in this group recorded by the PLC controller are qualified products, two connecting rods 8 are released to the two stoppers of the connecting rod 8 grabbing station, and the right manipulator 12 grabs the two connecting rods 8 of the first group to the two disassembly stations on the left, and then grabs the two connecting rods 8 of the second group to the two disassembly stations on the right.

[0051] See also Figure 5 and Figure 6The disassembling device 5 includes four disassembling mechanisms in total, and the four disassembling mechanisms are installed on the disassembling frame 50. Every two disassembling mechanisms form a group of disassembling components. The disassembling mechanisms include: a connecting rod clamping cylinder 51 that is installed on the disassembling frame 50 and can be telescopically moved forward and backward, a connecting rod placing plate 52 that is installed on the disassembling frame 50, a bolt loosening mechanism 53 that is slidably installed on the disassembling frame 50 and can be used to press the connecting rod body 81 from above when loosening the bolt. A second telescopic cylinder 54 is installed between the two disassembling mechanisms of the same group of disassembling components, and a disassembling mounting frame 55 is installed at the telescopic end of the second telescopic cylinder 54. The bolt loosening mechanisms 53 of the two disassembling mechanisms of the same group of disassembling components are all installed on the same disassembling mounting frame 55, that is, the two disassembling mechanisms of the same group share a set of second telescopic cylinders 54 to drive the bolt loosening mechanism 53 to move forward and backward. A clamping block 511 is installed at the telescopic end of the connecting rod clamping cylinder 51 . The clamping block 511 extends into the interior of the connecting rod placement plate 52 . The end of the clamping block 511 has a clamping opening 5111 for clamping the end of the connecting rod body 81 .

[0052] A connecting rod spreading mechanism is also provided under the connecting rod placement plate 52, and the connecting rod spreading mechanism includes a fixed block 56 and a movable block 57 opposite to the fixed block 56, and the fixed block 56 and the movable block 57 extend upward from the bottom of the connecting rod placement plate 52; when the right manipulator 12 places the connecting rod 8 on the connecting rod placement plate 52, the fixed block 56 and the movable block 57 fit together, and the fixed block 56 and the movable block 57 are just stuck in the installation hole in the middle of the connecting rod 8. A third telescopic cylinder 58 is installed on the disassembly frame 50 in the middle of the two disassembly mechanisms of each group of disassembly components, and the telescopic ends of the third telescopic cylinder 58 are fixedly connected to the two movable blocks 57 on both sides, that is, the two movable blocks 57 share one third telescopic cylinder 58, and the two connecting rods 8 are spread apart at the same time.

[0053] The disassembly mechanism also includes two limit posts 59 for limiting the connecting rod 8, and the limit posts 59 extend from the bottom of the connecting rod placement plate 52 to the top of the connecting rod placement plate 52. A suction hole 521 is provided on the connecting rod placement plate 52 on the outer side of the end surface where the connecting rod body 81 and the connecting rod cover 82 are combined, and a suction cylinder 510 is correspondingly provided under the suction hole 521, and the suction cylinder 510 is connected to a vacuum suction pump. After the connecting rod body 81 and the connecting rod cover 82 are opened, there are some metal cuttings on the contact surface. If they are not cleaned in time, the tile 15 will be scratched and damaged when the tile 15 is pressed in. The vacuum suction pump sucks the metal cuttings through the suction cylinder 510 to remove the metal cuttings in time.

[0054] A fourth telescopic cylinder 512 is installed on the disassembly frame 50 between the two connecting rod body holding mechanisms of the same connecting rod disassembly assembly; a holding mounting frame 513 is installed at the telescopic end of the fourth telescopic cylinder 512, and the connecting rod body holding mechanism includes a second lifting cylinder 514 installed on the holding mounting frame 513 and a holding block 515 installed at the lower end of the second lifting cylinder 514. A group of connecting rod body holding mechanisms is installed on the left and right sides of the holding mounting frame 513, that is, the two connecting rod body holding mechanisms share one fourth telescopic cylinder 512.

[0055] The specific disassembly process of the connecting rod 8 is as follows: the connecting rod clamping cylinder 51 is extended to press against the end of the connecting rod body 81, the fourth telescopic cylinder 512 is extended to move the holding block 515 to the top of the connecting rod body 81, and then the second lifting cylinder 514 is extended to make the holding block 515 press against the connecting rod body 81. The holding block 515 can be made of a relatively soft material. Then the second telescopic cylinder 54 is extended to make the end of the bolt loosening mechanism 53 clamp into the bolt of the connecting rod 8, and the bolt loosening mechanism 53 is started to loosen the bolt. Then the third telescopic cylinder 58 is contracted to drive the movable block 57 away from the fixed block 56, and at the same time, the vacuum suction pump is used to suck the metal cutting chips in the process of the connecting rod 8 being stretched in real time.

[0056] See also Figure 4 The middle manipulator 13 has four mechanical claws 133, which are used to simultaneously grasp the connecting rod body 81 and the connecting rod cover 82 of the two stretched connecting rods 8. Every two of the four mechanical claws 133 form a mechanical claw group, and each mechanical claw group is used to grasp the connecting rod body 81 and the connecting rod cover 82 of the same connecting rod 8; the mechanical claw group includes a fixedly mounted mechanical claw 133 and a rotatably mounted mechanical claw 133. A rotating cylinder 131 is mounted on the claw mounting frame 134 of the middle manipulator 13, and one end of a swing rod 132 is coaxially mounted on the output shaft of the rotating cylinder 131, and the mechanical claw 133 is mounted on the other end of the swing rod 132.

[0057] The grasping process after the connecting rod body 81 and the connecting rod cover 82 are disassembled is as follows: in the initial state, the two mechanical claws 133 are arranged relatively front and back, and grasp the outer ends of the connecting rod body 81 and the connecting rod cover 82 at the same time. After the grasping is completed, the mechanical claws 133 rise upward, and the rotating cylinder 131 rotates 180 degrees to arrange the two mechanical claws 133 left and right. Then the middle robot 13 puts the connecting rod body 81 and the connecting rod cover 82 arranged left and right to the tile pressing station at the same time.

[0058] See also Figure 7 There are four tile pressing stations, which press the connecting rod bodies 81 and connecting rod covers 82 of two connecting rods 8 at the same time, and are equipped with four automatic tile feeding devices 7.

[0059] See also Figure 8-Figure 10The automatic tile feeding device 7 includes: a tile feeding bracket 71, a conveying support frame 72 fixedly installed above the tile feeding bracket 71, a tile feeding cylinder 73 installed on the tile feeding bracket 71, a driving pulley (not shown) rotatably installed at one end of the conveying support frame 72, a driven pulley (not shown) rotatably installed at the other end of the conveying support frame 72, a tile conveyor belt 76 used to connect the driving pulley and the driven pulley, and a rotating rod 78 installed on the rotating shaft of the driving pulley through a one-way bearing 77; a slide groove 710 parallel to the telescopic direction of the tile feeding cylinder 73 is provided on the tile feeding bracket 71, and a first slider 79 and a second slider 711 are slidably installed in the slide groove 710; the first slider 79 is fixedly connected to the telescopic shaft of the tile feeding cylinder 73 through a first connecting rod 712. One end of the rotating rod 78 is mounted on the outer ring of the one-way bearing 77, and the other end has a third long hole 781 and is connected to the second slider 711 through a second connecting rod 713. A push rod 714 is fixedly mounted on the telescopic end of the tile feeding cylinder 73, and a third connecting rod 715 vertically arranged therewith is mounted on the end of the push rod 714, and the third connecting rod 715 is inserted into the third long hole 781.

[0060] The first sliding block 79 has a first long hole 791 , the second sliding block 711 has a second long hole 7111 , the first connecting rod 712 is inserted into the first long hole 791 , and the second connecting rod 713 is inserted into the second long hole 7111 .

[0061] The tile materials are manually placed on the tile conveyor belt 76 . Two parallel support bars 716 are provided on the inner side of the conveyor support frame 72 . The left and right sides of the tile conveyor belt 76 are overlapped on the two support bars 716 . The two support bars 716 assist in bearing the weight of the tiles 15 .

[0062] Since the inner ring of the tile 15 is used to install the crank, a high degree of precision and cleanliness must be ensured. In order to prevent the tile 15 from being contaminated, a protective cover plate 717 made of plexiglass is installed above the conveying support frame 72, and the protective cover plate 717 is hinged on the conveying support frame 72.

[0063] A tile grabbing robot 718 is arranged above the conveying support frame 72, and a limit block 719 made of soft material is arranged at the front end of the conveying support frame 72. When the tile 15 reaches the limit block 719, the photoelectric sensor located on the tile grabbing robot 718 detects that the tile 15 is in place, and grabs the tile 15 and places it to the pressing station.

[0064] See also Figure 8 and Fig.11The tile press-fitting device 6 comprises: a connecting rod body / connecting rod cover placing platform 60, a press-fitting frame 61, a press-fitting cylinder 62 mounted on the press-fitting frame 61, a first mounting frame 63 and a second mounting frame 64 slidably mounted on the press-fitting frame 61; the second mounting frame 64 is arranged close to the connecting rod body / connecting rod cover placing platform 60. The upper end of the second mounting frame 64 is provided with a tile placing platform 614 and two guide inclined blocks 65 arranged opposite to each other. The two guide inclined blocks 65 are located above the left and right sides of the tile placing platform 614, and the closer to the connecting rod body 81 / connecting rod cover 82, the closer the distance between the two guide inclined blocks 65 is. A third mounting frame 66 is disposed at the upper end of the first mounting frame 63, and a center block 67 is fixedly disposed at the front end of the third mounting frame 66. The front end of the third mounting frame 66 has a guide groove 660 extending in the left and right directions, and two side pressure blocks 68 are slidably connected in the guide groove 660. The two side pressure blocks 68 are symmetrically arranged on the left and right sides of the center block 67. The opposite sides of the center block 67 and the side pressure blocks 68 are both provided with spring mounting holes, and a second spring 69 is installed in the spring mounting holes. The side pressure blocks 68 are fitted between the two guide inclined blocks 65. An upper pressure block 610 is also disposed on the upper side surface of the center block 67. The left and right sides of the upper pressure block 610 exceed the center block 67 to press the upper end surface of the tile 15.

[0065] A first guide rod 611 is fixed to the second mounting frame 64, and the first guide rod 611 passes through the first mounting frame 63, and a first spring 612 is sleeved on the first guide rod 611 between the first mounting frame 63 and the second mounting frame 64. Of course, in other embodiments of the present invention, one end of the first guide rod 611 may be fixed to the first mounting frame 63, and the other end may pass through the second mounting frame 64, so as to achieve the same effect as that of the present embodiment.

[0066] A tile placement platform 614 is fixedly provided on the lower end surfaces of the two guide inclined blocks 65 , and a tile recognition sensor is provided below the center position of the tile placement platform 614 .

[0067] The inner ring of the tile 15 is used to install the crank. In order to ensure precision, the inner ring of the tile should be avoided as much as possible during the press-fitting process. Manual press-fitting often touches the inner ring of the tile. The press-fitting method designed in this application only touches the end face of the tile and does not contaminate the inner ring of the tile at all.

[0068] The specific working process of pressing the connecting rod body 81 or the connecting rod cover 82 of the tile is as follows:

[0069] First, the pressing cylinder 62 extends to drive the first mounting frame 63 and the second mounting frame 64 to move closer to the connecting rod body / connecting rod cover placement platform 60 until the front end of the tile placement platform abuts against the connecting rod body / connecting rod cover placement platform 60. At this time, the second mounting frame 64 cannot continue to move forward, and the pressing cylinder 62 continues to extend, the first spring 612 is compressed, and the center block 67, the side pressure block 68 and the upper pressure block 610 continue to move forward. Specifically, as the distance between the two guide bevel blocks 65 becomes closer, the side pressure block 68 gradually compresses the second spring 69 inward, and contacts the front end surface of the tile, pushing the tile forward to gradually approach the connecting rod body 81 / connecting rod cover 82, and at the same time, the tile is slightly rounded inward under the guiding action of the two guide bevel blocks 65; at the same time, the upper pressure block 610 presses the tile from above to ensure that it does not pop up when pressed into the connecting rod body 81 or the connecting rod cover 82.

[0070] It should be explained that the tile is a metal sheet with a certain elasticity, which can ensure that it is tightly pressed into the connecting rod body 81 and the connecting rod cover 82.

[0071] This technical solution of the present invention realizes the two-step press-fitting of the tile, has a compact structure, and is easy to control. It can ensure that the inner ring surface of the tile will not be contaminated during the press-fitting process, while ensuring the coaxiality and symmetry of the tile and the connecting rod, thereby improving the accuracy.

[0072] After the tile is pressed onto the connecting rod body 81 or the connecting rod cover 82, it is grabbed by the left manipulator 14 and placed on the unloading conveyor line 16.

[0073] The left manipulator 14 has the same structure as the middle manipulator 13 , and has several fixedly mounted mechanical claws 133 and one rotatably mounted mechanical claw 133 .

[0074] The structure of the left manipulator 14 is the same as that of the middle manipulator 13 .

[0075] Specifically: Grabbing materials: After the tile pressing is completed, the left manipulator 14 moves horizontally to the top of the tile pressing station. At this time, the two sets of rotatably installed mechanical claws and the fixedly installed mechanical claws are in an open state, and respectively grab the pressed connecting rod body 81 and connecting rod cover 82. The four mechanical claws act simultaneously to grab.

[0076] Unloading: The left manipulator 14 moves horizontally to the top of the unloading conveyor line 16, and the rotatably installed manipulator rotates 180 degrees to make the connecting rod body 81 and the connecting rod cover 82 opposite to each other, and then puts the connecting rod body 81 and the connecting rod cover 82 in pairs on the unloading conveyor line 16.

[0077] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A production line for automatically disassembling connecting rods and pressing tiles, characterized in that: include: A connecting rod loading conveyor line (2); the connecting rod loading conveyor line (2) is provided with a plurality of trays (1) for placing connecting rods (8); A barcode scanner is arranged at the head end of the connecting rod feeding conveyor line (2); a QR code is printed on the side end surface of the connecting rod cover (82) of each connecting rod (8) for storing the weight information of the connecting rod (8); the barcode scanner is used to scan the QR code information and send it to the PLC controller; An automatic color marking component (3) disposed above the connecting rod feeding conveyor line (2), the automatic color marking component (3) comprising four color marking machines (31) disposed in parallel and used to mark four connecting rods (8) with four different colors at the same time; A right manipulator (12), a middle manipulator (13) and a left manipulator (14) are arranged in sequence from right to left; the right manipulator (12) grabs the color-marked connecting rod (8) to a disassembly station to disassemble the connecting rod body (81) and the connecting rod cover (82); Disassembling device; loosening the bolts of the connecting rod (8) marked with color by the color marking machine (31), and disassembling it into a connecting rod body (81) and a connecting rod cover (82); two mechanical claws (133) of the middle manipulator (13) simultaneously grab the connecting rod body (81) and the connecting rod cover (82) of the same color, and unfold them in the left and right directions, and unfold the connecting rod body (81) and the connecting rod cover (82) in the left and right directions and place them in the tile pressing station; and a tile pressing device (6); used for pressing the tile (15) onto the inner ring of the connecting rod body (81) or the connecting rod cover (82); the disassembling device (5) comprises four disassembling mechanisms in total, the four disassembling mechanisms are mounted on the disassembling frame (50), and every two disassembling mechanisms form a disassembling assembly, the disassembling mechanisms comprising: a connecting rod clamping cylinder (51) mounted on the disassembling frame (50) and capable of telescoping forward and backward, a connecting rod placing plate (52) mounted on the disassembling frame (50), and a connecting rod clamping cylinder (51) mounted on the disassembling frame (50) and capable of sliding forward and backward. The disassembly frame (50) includes a bolt loosening mechanism (53) and a connecting rod body pressing mechanism slidably mounted on the disassembly frame (50) for pressing the connecting rod body (81) from above when loosening the bolts; a second telescopic cylinder (54) is mounted between the two disassembly mechanisms of the same disassembly assembly, a disassembly mounting frame (55) is mounted on the telescopic end of the second telescopic cylinder (54), and the bolt loosening mechanisms (53) of the two disassembly mechanisms of the same disassembly assembly are both mounted on the same disassembly mounting frame (55). The connecting rod clamping cylinder (51) is provided with a clamping block (511) at the telescopic end thereof, and the clamping block (511) extends into the interior of the connecting rod placement plate (52); a connecting rod spreading mechanism is also provided under the connecting rod placement plate (52), and the connecting rod spreading mechanism comprises a fixed block (56) and a movable block (57) opposite to the fixed block (56), and the fixed block (56) and the movable block (57) extend upward from the bottom of the connecting rod placement plate (52); the right manipulator (12) places the connecting rod (8) on the connecting rod placement plate ( 52), the fixed block (56) and the movable block (57) fit together, and the fixed block (56) and the movable block (57) are just stuck in the mounting hole in the middle of the connecting rod (8); a third telescopic cylinder (58) is installed on the disassembly frame (50) in the middle of the two disassembly mechanisms of each group of disassembly components, and the telescopic ends of the third telescopic cylinder (58) are fixedly connected to the two movable blocks (57) on both sides, that is, the two movable blocks (57) share one third telescopic cylinder (58), and simultaneously spread the two connecting rods (8).

2. The connecting rod automatic disassembly and tile pressing production line according to claim 1 is characterized by: The automatic color marking assembly (3) further comprises a marking bracket (32) arranged on both sides of the connecting rod feeding conveyor line (2), a first lifting cylinder (33) installed on the upper end of the marking bracket (32), and a marking mounting frame (34) fixedly installed on the telescopic end of the first lifting cylinder (33); four color marking machines (31) are installed on the marking mounting frame (34) in parallel on the left and right; and a color recognition sensor is integrated on the color marking machine (31) for detecting whether the marking color is qualified.

3. The connecting rod automatic disassembly and tile pressing production line according to claim 2 is characterized by: It also includes a defective product unloading mechanism (4) arranged at the tail end of the connecting rod feeding conveyor line (2), wherein the right manipulator (12) grabs the connecting rod (8) marked as defective and places it on the defective product unloading mechanism (4), and continues to load the connecting rod to the disassembly station after the color is manually marked.

4. The connecting rod automatic disassembly and tile pressing production line according to claim 3 is characterized by: A suction hole (521) is provided on the connecting rod placement plate (52) on the outer side of the end surface where the connecting rod body (81) and the connecting rod cover (82) are combined, and a suction cylinder (510) is correspondingly provided below the suction hole (521), and the suction cylinder (510) is connected to a vacuum suction pump.

5. The production line for automatically disassembling connecting rods and pressing tiles according to claim 1 is characterized in that: A fourth telescopic cylinder (512) is installed on a disassembly frame (50) between two connecting rod body holding mechanisms of the same connecting rod disassembly assembly; a holding mounting frame (513) is installed on the telescopic end of the fourth telescopic cylinder (512); the connecting rod body holding mechanism comprises a second lifting cylinder (514) installed on the holding mounting frame (513) and a holding block (515) installed at the lower end of the second lifting cylinder (514).

6. The connecting rod automatic disassembly and tile pressing production line according to claim 1 is characterized by: The tile press-fitting device (6) comprises: a connecting rod body / connecting rod cover placement platform (60), a press-fitting frame (61), a press-fitting cylinder (62) mounted on the press-fitting frame (61), a first mounting frame (63) and a second mounting frame (64) slidably mounted on the press-fitting frame (61); the telescopic end of the press-fitting cylinder (62) is connected to the first mounting frame (63), and the second mounting frame (64) is arranged close to the connecting rod body / connecting rod cover placement platform (60); a tile placement platform (614) is arranged at the upper end of the second mounting frame (64), and two guide bevel blocks (65) are arranged opposite to each other on the left and right sides of the tile placement platform (614), and the distance between the two guide bevel blocks (65) is closer to the connecting rod body (81) / connecting rod cover (82); the first mounting frame (63) is provided with a tile placement platform (614); A third mounting frame (66) is provided at the upper end, a center block (67) is fixedly provided at the front end of the third mounting frame (66), the front end of the third mounting frame (66) has a guide groove (660) extending in the left and right directions, two side pressure blocks (68) are slidably connected in the guide groove (660), and the two side pressure blocks (68) are symmetrically arranged on the left and right sides of the center block (67); spring mounting holes are provided on the opposite sides of the center block (67) and the side pressure blocks (68), a second spring (69) is installed in the spring mounting hole, and the side pressure block (68) is fitted between the two guide inclined blocks (65); an upper pressure block (610) is also provided on the upper side surface of the center block (67), and the left and right sides of the upper pressure block (610) extend beyond the center block (67) to press the upper end surface of the tile (15).

7. The connecting rod automatic disassembly and tile pressing production line according to claim 6 is characterized by: A first guide rod (611) is fixed on the second mounting frame (64), the first guide rod (611) passes through the first mounting frame (63), and a first spring (612) is sleeved on the first guide rod (611) between the first mounting frame (63) and the second mounting frame (64).

8. The connecting rod automatic disassembly and tile pressing production line according to claim 7 is characterized by: The invention also comprises an automatic tile loading device (7), the automatic tile loading device (7) comprising: a tile loading bracket (71), a conveying support frame (72) fixedly mounted above the tile loading bracket (71), a tile loading cylinder (73) mounted on the tile loading bracket (71), a driving pulley rotatably mounted on one end of the conveying support frame (72), a driven pulley rotatably mounted on the other end of the conveying support frame (72), a tile conveying belt (76) for connecting the driving pulley and the driven pulley, and a rotating rod (78) mounted on the rotating shaft of the driving pulley via a one-way bearing (77); the tile loading bracket (71) is provided with a slide groove (710) parallel to the extension and contraction direction of the tile loading cylinder (73), and a first slider (79) and a second slider (711) are slidably mounted in the slide groove (710); the first slider ( 79) is fixedly connected to the telescopic shaft of the tile feeding cylinder (73) through a first connecting rod (712); one end of the rotating rod (78) is installed on the outer ring of the one-way bearing (77), and the other end has a third long hole (781) and is connected to the second sliding block (711) through a second connecting rod (713); a push rod (714) is fixedly installed on the telescopic end of the tile feeding cylinder (73), and a third connecting rod (715) vertically arranged therewith is installed at the end of the push rod (714), and the third connecting rod (715) is inserted into the third long hole (781); the first sliding block (79) has a first long hole (791), and the second sliding block (711) has a second long hole (7111), the first connecting rod (712) is inserted into the first long hole (791), and the second connecting rod (713) is inserted into the second long hole (7111).

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