Full-automatic gear ring finish machining production line

Abstract

The full-automatic gear ring finish machining production line comprises a first machining area, a second machining area, a feeding area and a discharging area, the first machining area and the second machining area are arranged in a left-right spaced mode, and a feeding conveying positioning device which conveys materials from left to right and extends to the first machining area is arranged in the feeding area. The discharging area is arranged on the right side of the second machining area, a discharging trolley positioning device for fixing a discharging trolley is arranged in the discharging area, and transfer conveying lines which can achieve gear ring transfer in all the areas and extend left and right are arranged in the first machining area, the second machining area, the feeding area and the discharging area. At least one clamping robot used for moving the gear ring is arranged on the transfer conveying line, and the clamping robot can move left and right on the transfer conveying line. Automatic feeding and discharging in the gear ring machining process are achieved through the clamping robot arranged on the transfer conveying line, so that full-automatic finish machining of the gear ring is achieved, the efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing, and in particular relates to a production line for fully automatic finishing of gear rings. Background Art

[0002] The finishing process of the gear ring, as a component of the synchronizer on the car, includes the following steps: turning the outer circle and end face, and drilling the end face through hole. Since the two processes are carried out on different machine tools, the current work is carried out by manual loading and unloading and transfer, which makes the overall efficiency low and the labor cost high. Utility Model Content

[0003] The utility model proposes a production line for fully automatic finishing of gear rings, which can realize automatic finishing of gear rings, thereby improving efficiency and reducing labor costs.

[0004] To this end, the technical solution adopted by the utility model is: a production line for fully automatic finishing of gear rings, comprising a first processing area, a second processing area, a loading area and a unloading area, and the first processing area and the second processing area are arranged at intervals on the left and right, at least one first machine tool for processing the end face or outer circle of the gear ring is provided in the first processing area, and at least one second machine tool for processing the end face mounting hole of the gear ring is provided in the second processing area, a loading and conveying positioning device for conveying from left to right and extending to the first processing area is provided in the loading area, the unloading area is arranged on the right side of the second processing area, and a unloading trolley positioning device for fixing the unloading trolley is provided in the unloading area, and a transfer conveyor line that can realize the transfer of gear rings in each area and extends left and right is provided in the first processing area, the second processing area, the loading area and the unloading area, and at least one clamping robot for realizing the movement of the gear ring is provided on the transfer conveyor line, and the clamping robot can move left and right on the transfer conveyor line.

[0005] As a preferred embodiment of the above scheme, a loading temporary storage area for temporarily storing gear rings is provided on the right side of the loading conveying positioning device, a unloading temporary storage area for temporarily storing gear rings is provided on the left side of the unloading vehicle positioning device, and an intermediate temporary storage area for temporarily storing gear rings after the previous processing is provided in the second processing area. The loading temporary storage area, the unloading temporary storage area and the intermediate temporary storage area are each provided with at least one gear ring temporary storage device, and the gear ring temporary storage device includes a temporary storage table, and two gear ring placement areas identical to those on the unloading vehicle for placing gear rings are arranged on the temporary storage table at intervals.

[0006] It is further preferred that an intermediate placing device is provided in the first processing area for placing the gear ring so that the clamping robot can change the clamping end, the intermediate placing device includes an intermediate support frame, a placing frame for placing the gear ring is provided at one end of the intermediate support frame, an arc-shaped groove for placing the gear ring is provided on the placing frame, a baffle for blocking the gear ring is provided on one side of the arc-shaped groove of the placing frame, a first clamping assembly for clamping the gear ring is provided on the intermediate support frame on the other side of the placing frame, the first clamping assembly includes a first clamping cylinder, and a first clamping block capable of clamping the gear ring against the baffle is provided at the output end of the first clamping cylinder.

[0007] Further preferably, the gripping robot is provided with a gear ring grasping device for grasping the gear ring, the gear ring grasping device includes a grasping base plate for being installed on the gripping robot, an automatic three-jaw chuck with an L-shaped jaw is provided on the grasping base plate, and the center of the automatic three-jaw chuck does not coincide with the center of the grasping base plate installed on the gripping robot, a positioning contact for realizing the initial positioning of the gear ring is provided on the jaw, and a pad for protecting the gear ring is provided on the inner side of the jaw.

[0008] Further preferably, the loading conveying and positioning device includes a loading conveying line that transports from left to right and a loading positioning device arranged at the right end of the loading conveying line; the loading positioning device includes a positioning platform, and the middle part of the positioning platform is relatively provided with limit blocks for limiting the position of the gear ring at the front and rear, and the two limit blocks are both arranged on the clamping adjustment component, and the clamping adjustment component is arranged on the positioning platform, and the clamping adjustment component can adjust the distance between the two limit blocks, and the positioning platform is arranged on the loading support frame through the tilt adjustment component, and the tilt adjustment component is used to adjust the inclination of the positioning platform.

[0009] Further preferably, the clamping adjustment assembly includes an adjusting motor arranged under the positioning platform, and the adjusting motor is provided with a rotating screw extending forward and backward through the clamping transmission assembly, and the two ends of the rotating screw are rotatably arranged under the positioning platform through a screw seat, and the front and rear ends of the rotating screw are both threaded with rotating nuts, and the moving directions of the two rotating nuts are opposite, and each rotating nut is connected to the limit block through a corresponding clamping connecting block.

[0010] Further preferably, the tilt adjustment assembly includes a tilt cylinder whose lower end is hinged on a tilt cylinder seat, the output end of the tilt cylinder is hinged on the lower left side of the positioning platform, the left side of the positioning platform is set on the loading support frame through a telescopic column, and the right side of the positioning platform is set on the loading support frame through a hinged seat.

[0011] Further preferably, the loading support frame is configured as four support columns distributed in a rectangular shape.

[0012] Further preferably, the opposing surfaces of the two limit blocks are configured as limit surfaces for limiting the further movement of the gear ring, and the limit surfaces are configured in an arc shape or a V shape.

[0013] Further preferably, a clamping detection sensor for detecting whether it is in contact with the gear ring is provided in the middle of at least one limit block.

[0014] Further preferably, a buffer limit assembly for limiting the rightward movement distance of the gear ring is provided at the right end of the positioning platform, and the buffer limit assembly includes two feeding buffers spaced apart from each other and an auxiliary stop block provided between the two feeding buffers.

[0015] Further preferably, the limit block is provided with a guide block for guiding the gear ring when it slides in and extending to the top of the right end of the conveyor belt, the inner sides of the two guide blocks are provided with guide slopes, and the two guide slopes are arranged in an eight-shaped shape facing right, and the distance between the right ends of the two guide slopes is smaller than the distance between the two limit blocks.

[0016] Further preferably, the loading conveyor line adopts a roller loading conveyor line whose left end is higher than the right end.

[0017] Further preferably, there is a blocking component for ensuring that only one gear ring enters, the blocking component includes a trigger member extending left and right, the middle part of the trigger member is hinged on the blocking seat, the positioning platform is located on the left side of the limit block and is provided with a trigger groove for the right end of the trigger member to extend out, a blocking member is provided on the left side of the trigger member, and the upper side of the blocking member is slidable up and down on the positioning platform.

[0018] Further preferably, two rows of gear ring placement areas for placing gear rings are arranged at intervals in the front and rear on the unloading trolley, the unloading trolley positioning device includes a limit baffle arranged on the left side of the unloading trolley stop position and two side baffles arranged on the front and rear sides of the unloading trolley stop position, the unloading trolley is provided with a handle and a moving wheel, and two rows of gear ring placement areas for placing gear rings are arranged in the front and rear on the unloading trolley, the limit baffle and the side baffles are both arranged on corresponding support seats, a unloading trolley positioning component for positioning and a unloading trolley fixing component for placing the unloading trolley for movement are arranged on the limit baffle, and a gear ring detection component for detecting the height of the corresponding gear ring placement area after the gear ring is placed on the side baffle corresponding to each gear ring placement area.

[0019] Further preferably, the gear ring detection assembly comprises a detection rod, on which gear ring detection sensors for detecting whether there are gear rings at the lowest position and the highest position in the gear ring placement area are arranged at intervals above and below.

[0020] Further preferably, the unloading trolley positioning assembly includes a unloading trolley positioning block arranged on the right side surface of the limit baffle, and a positioning groove for the unloading trolley positioning block to be inserted is arranged on the left side surface of the unloading trolley at a position corresponding to the unloading trolley positioning block.

[0021] Further preferably, a sensor for detecting whether the unloading vehicle is in place is provided on the limit baffle through a sensor bracket.

[0022] Further preferably, the material handling trolley fixing assembly includes a material handling trolley rotating clamping cylinder arranged below the limit baffle through a fixing seat, a clamping fixing block is arranged at the output end of the material handling trolley rotating clamping cylinder, a pressed stop block for clamping by the clamping fixing block is arranged below the left end of the material handling trolley, the fixing seat is arranged in an L-shape, the vertical section of the fixing seat is arranged on the left side surface of the limit baffle, and the horizontal section of the fixing seat is used to install the material handling trolley rotating clamping cylinder, and when the material handling trolley rotating clamping cylinder is working, the clamping fixing block can press the pressed stop block on the vertical section of the material handling trolley rotating clamping cylinder.

[0023] Further preferably, a guide slope is provided on the right side of the side baffle, and the two guide slopes form an eight-shaped shape facing leftwards.

[0024] Further preferably, at least three limiting rods for limiting the gear rings are provided on the unloading cart and the temporary storage table corresponding to each gear ring placement area, and the inner side surfaces of all the limiting rods are set as arc surfaces.

[0025] Further preferably, a grinding area for grinding the inner teeth of the gear ring is provided on the right side of the second processing area, the grinding area includes a grinding robot and a flipping and fixing device for flipping and fixing the gear ring, the flipping and fixing device includes a flipping platform for placing the gear ring, the flipping platform is arranged on a flipping support frame through a flipping assembly, a flipping clamping assembly for clamping the gear ring is provided on the flipping platform, a flipping positioning assembly for positioning during grinding of the inner teeth of the gear ring is provided on the flipping platform through a jacking assembly, and a grinding hole is provided on the flipping platform for convenience of the grinding robot to extend into the grinding after flipping.

[0026] Further preferably, the flip clamping assembly includes two flip clamping blocks respectively arranged on the left and right sides of the grinding hole, at least one of the two flip clamping blocks is provided with a clamping moving assembly for realizing the movement of the flip clamping block, the clamping moving assembly includes a flip clamping cylinder arranged on the flip platform, the output end of the flip clamping cylinder is arranged on the corresponding flip clamping block, and a guide rod assembly is arranged between the flip clamping cylinder and the corresponding flip clamping block for ensuring the horizontal movement of the flip clamping cylinder.

[0027] Further preferably, the flipping assembly includes a driven flipping assembly and an active flipping assembly which are relatively arranged on the left and right, the driven flipping assembly includes a driven flipping seat arranged on a flipping support frame, a driven flipping shaft is rotatably arranged on the driven flipping seat, and the left end of the flipping platform is arranged on the driven flipping shaft through a driven connecting block.

[0028] Further preferably, the active flipping component includes an active flipping seat arranged on the flipping support frame and a flipping cylinder arranged on the flipping support frame through a flipping driving seat, an active flipping shaft is rotatably arranged on the active flipping seat, the right end of the flipping platform is arranged on one end of the active flipping shaft through an active connecting block, and the other end of the active flipping shaft can rotate under the action of the flipping cylinder through a flipping transmission assembly arranged between the active flipping shaft and the flipping cylinder.

[0029] Further preferably, the flip transmission assembly includes a transmission rack arranged at the output end of the flip cylinder, the active flip shaft is sleeved with a transmission gear meshing with the transmission rack, and a guide rail slider assembly is arranged between the transmission rack and the flip support frame.

[0030] Further preferably, the outer casing of the flip transmission assembly is provided with a protective cover.

[0031] Further preferably, the flip positioning assembly comprises a flip positioning cylinder arranged on the jacking assembly, the output end of the flip positioning cylinder is provided with a flip positioning block, and the flip positioning block is provided with positioning teeth for meshing with the inner teeth of the gear ring.

[0032] Further preferably, the jacking assembly includes a jacking mounting plate arranged on the flip support frame, a jacking cylinder is arranged on the jacking mounting plate, a jacking plate is arranged after the output end of the jacking cylinder passes through the jacking mounting plate, and a jacking guide assembly is arranged between the jacking plate and the jacking mounting plate to ensure stable movement of the jacking plate.

[0033] Further preferably, the jacking guide assembly includes a jacking guide rod slidably arranged on the jacking mounting plate through a guide sleeve, the upper end of the jacking guide rod is fixed on the jacking plate, and the lower end of the jacking guide rod is provided with an anti-slip block after passing through the jacking mounting plate.

[0034] Further preferably, a lifting limit buffer for preventing the lifting cylinder from failing is provided on the lifting mounting plate.

[0035] Further preferably, the flip support frame includes a mounting base extending left and right, and flip brackets for installing the flip assembly are provided at both left and right ends of the mounting base, the jacking assembly is arranged in the middle of the mounting base through the jacking bracket, and an installation adjustment assembly for adjusting the height of the mounting base is provided below the mounting base.

[0036] Further preferably, the installation adjustment components are provided with four groups, each including a mounting block and a mounting stop block spaced apart in an upper and lower manner, two adjustment bolts are spaced apart between the mounting block and the mounting stop block, each adjustment bolt is threaded with an adjustment nut located at the upper and lower ends of the mounting block and used to limit the height of the mounting block, an L-shaped fixed positioning block is provided on the side of the mounting block, and a vertical strip hole is provided on the fixed positioning block for installation with the mounting block.

[0037] Further preferably, the grinding hole is configured as a tapered hole with a smaller upper portion and a larger lower portion, and an inner diameter of an upper end of the grinding hole is between a root circle diameter of an inner tooth of the gear ring and an outer diameter of the gear ring.

[0038] Further preferably, a flipping clamping assembly is provided to prevent the flipping from being incomplete, and two groups of the flipping clamping assemblies are arranged symmetrically front and back on the flipping support frame, and a flipping pressed block is arranged on the flipping platform.

[0039] Further preferably, the flipping and clamping assembly includes a flipping and clamping cylinder arranged on a flipping support frame, a flipping and clamping block is arranged at the output end of the flipping and clamping cylinder, and a flipping support block is arranged on the flipping support frame. When the flipping and clamping cylinder is working, it drives the flipping and clamping block to rotate, thereby pressing the flipping pressed block onto the flipping support block through the flipping and clamping block. The flipping support frame is provided with a horizontal detection sensor for judging whether the flipping platform is in a horizontal state by detecting the position of the flip pressed block.

[0040] The beneficial effects of the utility model are as follows: by means of a gripping robot arranged on the transfer conveyor line, automatic loading and unloading can be realized during the gear ring processing process, and a loading and conveying positioning device is also provided to ensure that the gripping robot can accurately grip the gear ring, so that the gear ring can be accurately placed in the corresponding machine tool for processing in subsequent processing, thereby realizing fully automatic finishing of the gear ring, thereby improving efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the utility model.

[0042] Figure 2 The schematic diagram of the feeding conveying positioning device in the utility model Figure 1 .

[0043] Figure 3 The schematic diagram of the feeding conveying positioning device in the utility model Figure 2 (When clamping the ring gear).

[0044] Figure 4 The schematic diagram of the feeding conveying positioning device in the utility model Figure 3 .

[0045] Figure 5It is a schematic diagram of the blocking component in the utility model.

[0046] Figure 6 The installation diagram of the positioning device and the unloading trolley in the utility model is shown in FIG. Figure 1 .

[0047] Figure 7 The installation diagram of the positioning device and the unloading trolley in the utility model is shown in FIG. Figure 2 .

[0048] Figure 8 for Figure 6 Schematic diagram after the ring gear is placed.

[0049] Fig. 9 The installation diagram of the positioning device and the unloading trolley in the utility model is shown in FIG. Figure 3 .

[0050] Fig.10 Schematic diagram of the flip fixing device in the utility model Figure 1 .

[0051] Fig.11 Schematic diagram of the flip fixing device in the utility model Figure 2 (After the flip assembly is turned over).

[0052] Fig.12 Schematic diagram of the flip fixing device in the utility model Figure 3 (No flip platform).

[0053] Fig.13 It is a schematic diagram of the temporary storage device of the ring gear in the utility model.

[0054] Fig.14 It is a schematic diagram of the intermediate placement device in the utility model.

[0055] Fig.15 It is a schematic diagram of the clamping robot in the present invention grabbing the gear ring on the middle placement device from both sides.

[0056] Fig.16 It is a schematic diagram of the ring gear grabbing device in the utility model.

[0057] Fig.17 It is a schematic diagram of the transfer conveyor line and the gripping robot in the utility model.

[0058] Figure numerals: first machine tool-A, second machine tool-B, loading and conveying positioning device-C, unloading car positioning device-D, transfer conveyor line-E, clamping robot-F, gear ring temporary storage device-G, intermediate placement device-H, grinding robot-J, flipping and fixing device-K, loading and conveying line-1, positioning platform-2, limit block-3, loading support frame-4, adjustment motor-5, clamping transmission assembly-6, rotating screw-7, screw seat-8, rotating nut-9, clamping connection block-10, tilting cylinder seat-11, tilting cylinder-12, telescopic column-13, articulated seat-14, clamping detection sensor -15, feeding buffer -16, auxiliary block -17, guide block -18, trigger -19, blocking seat -20, blocking member -21, handle -22, moving wheel -23, limit baffle -24, side baffle -25, support seat -26, detection rod -27, gear ring detection sensor -28, unloading car positioning block -29, positioning groove -30, sensor bracket -31, in-position sensor -32, fixed seat -33, unloading car rotating clamping cylinder -34, clamping fixed block -35, pressed block -36, limiting rod -37, flip platform -38, grinding hole -32a, flip Clamping block-39, flip clamping cylinder-40, driven flip seat-41, driven flip shaft-42, driven connecting block-43, active flip seat-44, flip drive seat-45, flip cylinder-46, active flip shaft-47, active connecting block-48, transmission rack-49, transmission gear-50, flip positioning cylinder-51, flip positioning block-52, positioning gear-52a, lifting mounting plate-53, lifting cylinder-54, lifting plate-55, guide sleeve-56, lifting guide rod-57, anti-slip block-58, lifting limit buffer-59, mounting base-60, flip bracket-61 , lifting bracket -62, mounting block -63, mounting block -64, adjusting bolt -65, adjusting nut -66, fixed positioning block -67, vertical strip hole -67a, flip pressed block -68, flip clamping cylinder -69, flip clamping block -70, flip support block -71, horizontal detection sensor -72, temporary storage table -73, intermediate support frame -74, placement frame -75, arc groove -75a, baffle -75b, placement clamping cylinder -76, placement clamping block -77, grab base plate -78, automatic three-jaw chuck -79, clamping claw -80, positioning contact -81, pad -82. DETAILED DESCRIPTION

[0059] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0060] like Figure 1-17As shown, a production line for fully automatic finishing of gear rings is mainly composed of a first processing area, a second processing area, a loading area and a unloading area. The first processing area and the second processing area are arranged at intervals on the left and right. At least one first machine tool A for processing the end face or outer circle of the gear ring is arranged in the first processing area, and at least one second machine tool B for processing the mounting hole of the end face of the gear ring is arranged in the second processing area. A loading conveying positioning device C for conveying from left to right and extending to the first processing area is arranged in the loading area. The unloading area is arranged on the right side of the second processing area, and a unloading trolley positioning device D for fixing the unloading trolley is arranged in the unloading area. The first machine tool A and the second machine tool B are both existing technologies. After replacing the gear rings in the first processing area and the second processing area, they can also be used in the remaining processing steps of the gear ring.

[0061] A handle 1 and a moving wheel 2 are provided on the unloading trolley, and two rows of gear ring placement areas for placing gear rings are arranged at intervals in the front and rear of the unloading trolley, and each gear ring placement area is surrounded by at least three limiting rods 16 for limiting the gear ring, and the inner side surfaces of all the limiting rods are set as arc surfaces.

[0062] In order to realize the movement of the gear ring in different areas, a transfer conveyor line E extending left and right is provided in the first processing area, the second processing area, the loading area and the unloading area, which can realize the transfer of the gear ring in each area. At least one gripping robot F for realizing the movement of the gear ring is provided on the transfer conveyor line E, and the gripping robot F can move left and right on the transfer conveyor line E. It is best to have two gripping robots arranged on the left and right of the transfer conveyor line, wherein the gripping robot and the transfer conveyor line are also prior art.

[0063] In order to ensure the smooth circulation of gear rings, a loading temporary storage area for temporarily storing gear rings is set on the right side of the loading conveying positioning device C, a unloading temporary storage area for temporarily storing gear rings is set on the left side of the unloading vehicle positioning device, and an intermediate temporary storage area for temporarily storing gear rings after the previous processing is set in the second processing area. At least one gear ring temporary storage device G is set in each of the loading temporary storage area, the unloading temporary storage area and the intermediate temporary storage area. The gear ring temporary storage device G includes a temporary storage table 73, on which two gear ring placement areas that are the same as those on the unloading vehicle for placing gear rings are arranged at intervals.

[0064] Since the outer cylindrical end surface of the gear ring is fixed, in order to facilitate the change of one end of the gripping robot, an intermediate placement device H is provided in the first processing area for placing the gear ring so that the gripping robot can change the gripping end. The intermediate placement device H includes an intermediate support frame 74, a placement frame 75 for placing the gear ring is provided at one end of the intermediate support frame 74, an arc groove 75a for placing the gear ring is provided on the placement frame 75, a baffle 75b for blocking the gear ring is provided on one side of the placement frame 75 located at the arc groove 75a, and a placement and clamping assembly for clamping the gear ring is provided on the other side of the placement frame 75 on the intermediate support frame 74. The placement and clamping assembly includes a placement and clamping cylinder 76, and a placement and clamping block 77 that can clamp the gear ring on the baffle is provided at the output end of the placement and clamping cylinder 76. When the gripping robot grabs the gear ring from different sides of the placement frame, the gear ring can be flipped.

[0065] In order to facilitate the gripping of parts by the gripping robot, a gear ring gripping device for gripping the gear ring is provided on the gripping robot F. The gear ring gripping device includes a gripping base plate 78 for installation on the gripping robot, and an automatic three-jaw chuck 79 with an L-shaped clamping jaw 80 is provided on the gripping base plate 78, and the center of the automatic three-jaw chuck 79 does not coincide with the center of the gripping base plate 78 installed on the gripping robot, so that the gripping robot can grip the gear ring from both sides of the placement rack, thereby realizing the flipping of the gear ring during external cylindrical processing. In order to ensure the gripping effect, a positioning contact 81 for realizing the initial positioning of the gear ring is provided on the clamping jaw 80, and a pad 82 for protecting the gear ring is provided on the inner side of the clamping jaw 80, and preferably, the inner side of the pad is a circular arc surface. The automatic three-jaw chuck is a prior art.

[0066] The loading conveying positioning device includes a loading conveying line 1 that transports from left to right and a loading positioning device arranged at the right end 1 of the loading conveying line. Among them, the loading positioning device is mainly composed of a positioning platform 2, a limit block 3, a clamping adjustment component, a loading support frame 4 and a tilt adjustment component. Among them, limit blocks 3 for limiting the position of the gear ring are relatively arranged in the front and back of the middle part of the positioning platform 2, and the two limit blocks 3 are both arranged on the clamping adjustment component, and the clamping adjustment component is arranged on the positioning platform 2, and the clamping adjustment component can adjust the distance between the two limit blocks 3, so that its limit blocks can clamp the gear ring and be suitable for gear rings of different specifications. The positioning platform 2 is arranged on the loading support frame 4 through the tilt adjustment component, and the tilt adjustment component is used to adjust the inclination of the positioning platform 2, so that the gear ring can slide from the left end of the positioning platform to between the two limit blocks under the action of gravity.

[0067] In order to adjust the distance between the two limit blocks, one can be kept stationary while the other moves, or the two limit blocks can move toward or in the opposite direction while the center remains unchanged. When the two move toward or in the opposite direction, the clamping adjustment assembly includes an adjustment motor 5 arranged below the positioning platform 2, and the adjustment motor 5 is provided with a rotating screw 7 extending forward and backward through a clamping transmission assembly 6, and the two ends of the rotating screw 7 are rotatably arranged below the positioning platform 2 through a screw seat 8, and rotating nuts 9 are screwed at the front and rear ends of the rotating screw 7, and the moving directions of the two rotating nuts 9 are opposite, and each rotating nut 9 is connected to the limit block 3 through a corresponding clamping connection block 10. The clamping transmission assembly is a gear box structure in the prior art.

[0068] To ensure the stability of the movement of the limit block, it is best to provide a guide rail on the bottom surface of the positioning platform, and the clamping connection block is configured to include a horizontal clamping connection block and two vertical clamping connection blocks spaced apart on the left and right, the horizontal clamping connection block is used to connect the two vertical clamping connection blocks, the two vertical clamping connection blocks extend up and down and are used to connect with the limit block, and a slider is provided between the horizontal clamping connection block and the guide rail.

[0069] The tilt adjustment assembly includes a tilt cylinder 12 whose lower end is hingedly arranged on a tilt cylinder seat 11, and the output end of the tilt cylinder 12 is hingedly arranged on the lower left side of the positioning platform 2. Correspondingly, the left side of the positioning platform 2 is arranged on the loading support frame 4 through a telescopic column 13, and the right side of the positioning platform 2 is arranged on the loading support frame 4 through a hinge seat 14, that is, the right end of the positioning platform and the loading support frame are hingedly arranged.

[0070] To simplify the structure, the loading support frame 4 is configured as four support columns distributed in a rectangular shape.

[0071] In order to enable the two limit blocks to clamp the gear ring, the opposite surfaces of the two limit blocks 3 are set as limit surfaces for limiting the further movement of the gear ring, and the limit surfaces are set to be arc-shaped or V-shaped.

[0072] In order to facilitate confirmation that the gear ring has been clamped, a clamping detection sensor 15 for detecting whether it is in contact with the gear ring is provided in the middle of at least one limit block 3 .

[0073] In order to prevent the gear ring from moving in transition, a buffer limit assembly for limiting the distance the gear ring moves to the right is provided at the right end of the positioning platform 2, and the buffer limit assembly includes two loading buffers 16 spaced apart in front and back and an auxiliary stop block 17 provided between the two loading buffers.

[0074] In order to facilitate the gear ring to smoothly enter the two limit blocks 3 on the feeding conveyor line, a guide block 18 is provided on the two limit blocks 3 for guiding the gear ring when sliding in and extending to the upper right end of the conveyor belt. The inner sides of the two guide blocks 18 are both provided with guide slopes, and the two guide slopes are arranged in an eight-shaped shape facing right. Preferably, the distance between the right ends of the two guide slopes is smaller than the distance between the two limit blocks, so that when the limit blocks are in the clamping process, the next gear ring cannot move between the two limit blocks, thereby ensuring that there is only one gear ring between the two limit blocks.

[0075] In order to further ensure that only one gear ring enters between the two limit blocks, a blocking component is also provided to ensure that only one gear ring enters. Figure 4 As shown, the blocking assembly includes a trigger member 19 extending left and right, and the middle part of the trigger member 19 is hinged on the blocking seat 20. A trigger groove for the right end of the trigger member to extend out is provided on the left side of the positioning platform 2 at the limit block, and the front side of the right end of the trigger member is provided as an inclined trigger surface. A blocking member 21 is hinged on the left side of the trigger member, and the upper side of the blocking member 21 is slidable up and down on the positioning platform. When the left end of the positioning platform is lifted by the lifting assembly, the uppermost end of the blocking member is located in the sliding groove on the positioning platform for the blocking member to slide up and down. When the gear ring moves between the two limit blocks under the action of gravity, the gear ring will move the right end of the trigger member downward along the trigger surface, thereby causing the blocking member located at the left end of the trigger member to move upward, thereby blocking the subsequent gear ring from moving to the right. Since the gear ring is a ring structure, in order to ensure that the movement of the rear side of the same gear ring is not affected by the front side being triggered, it is best that the distance between the blocking member and the right end of the trigger member is slightly larger than the thickness of the gear ring, so that it can only be used to block the entry of the subsequent gear ring when the rear side of the previous gear ring is triggered.

[0076] Preferably, the feeding conveyor line 1 adopts a roller feeding conveyor line with the left end higher than the right end, so that the gear ring can move under the action of gravity, thereby reducing energy consumption. The inner side of the guide ramp is equipped with a buffer pad to prevent the gear ring from directly hitting.

[0077] The loading process is as follows: in the initial state, the two limit blocks are separated, and the tilting cylinder lifts the left end of the positioning platform. Under the action of gravity, the gear ring moves along the guide slope from the loading conveyor line toward between the two limit blocks. When the gear ring has completely passed the guide slope, the two limit blocks begin to move toward each other under the action of the adjusting motor until the clamping detection sensor detects a signal and stops moving. At this time, the gear ring is just clamped, and then the tilting cylinder is retracted to return the positioning platform to a horizontal position.

[0078] Two rows of gear ring placement areas for placing gear rings are arranged at intervals in the front and rear of the unloading car. The unloading car positioning device is mainly composed of a limit baffle 24, a side baffle 25, a support seat 26, a unloading car positioning assembly, a unloading car fixing assembly and a gear ring detection assembly. Among them, there is one limit baffle 24, which is arranged on the left side of the unloading car stop position, and it is arranged in the parking area of ​​the unloading car through at least two support seats arranged at intervals in the front and rear. There are two side baffles 25, which are arranged on both sides of the unloading car stop position, and each side baffle 25 is arranged in the parking area of ​​the unloading car through at least two support seats arranged at intervals in the left and right. A gear ring detection assembly is also arranged on the temporary storage table corresponding to each gear ring placement area.

[0079] The number of gear ring detection assemblies matches the number of gear ring placement areas, and gear ring detection assemblies are provided on both side baffles. The gear ring detection assemblies are used to detect whether there are gear rings placed in the corresponding gear ring placement area and whether the gear rings are full. The gear ring detection assembly includes a detection rod 27, and gear ring detection sensors 28 for detecting whether there are gear rings at the lowest position and the highest position in the gear ring placement area are provided at intervals above and below the detection rod 27. The unloading trolley positioning assembly and the unloading trolley fixing assembly are both provided on the limit baffle 24, wherein the unloading trolley positioning assembly is used to realize the positioning of the unloading trolley, and specifically includes a unloading trolley positioning block 29 provided on the right side surface of the limit baffle 24, and correspondingly, a positioning groove 30 for the unloading trolley positioning block 29 to be inserted is provided on the left side surface of the unloading trolley at the position corresponding to the unloading trolley positioning block 29.

[0080] The fixing assembly of the feeding trolley is used to place the feeding trolley and then move it into position. Specifically, it includes a feeding trolley rotating clamping cylinder 34 arranged below the limit baffle 24 through a fixing seat 33. A clamping and fixing block 35 is arranged at the output end of the feeding trolley rotating clamping cylinder 34. Correspondingly, a pressed stopper 36 for clamping by the clamping and fixing block 35 is arranged below the left end of the feeding trolley. In order to facilitate the insertion of the positioning block of the feeding trolley and the clamping and fixing of the clamping and fixing block, the fixing seat 33 is set to be L-shaped, and the vertical section of the fixing seat 33 is set on the left side of the limit baffle 24. The horizontal section of the fixing seat 33 is used to install the feeding trolley rotating clamping cylinder 34. When the feeding trolley rotating clamping cylinder 34 is working, the clamping and fixing block 35 can press the pressed stopper 36 on the vertical section of the feeding trolley rotating clamping cylinder 34.

[0081] In order to facilitate the detection of the position of the unloading vehicle, a sensor 32 for detecting whether the unloading vehicle is in place is provided on the limit baffle plate 24 through a sensor bracket 31. In order to facilitate the unloading vehicle to enter between the two side baffles, a guide slope 4a with a guiding function is provided on the right side of the side baffle plate 25, and the two guide slopes form an eight-shaped shape facing left.

[0082] A grinding area for grinding the inner teeth of the gear ring is provided on the right side of the second processing area, and the grinding area includes a grinding robot J and a flipping and fixing device K for flipping and fixing the gear ring. The flipping and fixing device K is mainly composed of a flipping platform 38, a flipping support frame, a flipping assembly, a flipping clamping assembly, a jacking assembly and a flipping positioning assembly. The flipping platform 38 is used to place the gear ring, the flipping clamping assembly is used to clamp the gear ring placed on the flipping platform, the flipping positioning assembly is used to realize the positioning of the gear ring placed on the flipping platform before the flipping clamping assembly is clamped, the flipping assembly is used to realize the flipping of the flipping platform, and the jacking assembly is used to realize the lifting and lowering of the flipping positioning assembly. The grinding robot is a prior art.

[0083] The flip platform 38 is arranged on the flip support frame through a flip assembly, and the flip positioning assembly is arranged on the flip support frame through a jacking assembly. A grinding hole 38a is arranged on the flip platform 38 for the grinding robot to enter for grinding after flipping, and the inner diameter of the upper end of the grinding hole is between the root circle diameter of the inner teeth of the gear ring and the outer diameter of the gear ring.

[0084] The flip clamping assembly includes two flip clamping blocks 39 respectively arranged on the left and right sides of the grinding hole 38a. At least one of the two flip clamping blocks 39 is provided with a clamping moving assembly for realizing the movement of the flip clamping block 39. It is better to have only one flip clamping block provided with a clamping moving assembly to facilitate the setting of the grinding hole. The clamping moving assembly includes a flip clamping cylinder 40 arranged on the flip platform 38. The output end of the flip clamping cylinder 40 is arranged on the corresponding flip clamping block 39. A guide rod assembly is arranged between the flip clamping cylinder 40 and the corresponding flip clamping block 39 to ensure the horizontal movement of the flip clamping cylinder.

[0085] The flip assembly includes a driven flip assembly and an active flip assembly which are arranged opposite to each other on the left and right sides. The driven flip assembly includes a driven flip seat 41 arranged on the flip support frame, a driven flip shaft 42 is rotatably arranged on the driven flip seat 41, and the left end of the flip platform 38 is arranged on the driven flip shaft 42 through a driven connecting block 43.

[0086] The active flip assembly includes an active flip seat 44 disposed on the flip support frame and a flip cylinder 46 disposed on the flip support frame through a flip drive seat 45. An active flip shaft 47 is rotatably disposed on the active flip seat 44, and the right end of the flip platform 38 is disposed on one end of the active flip shaft 47 through an active connecting block 48. To realize the rotation of the active flip shaft, the other end of the active flip shaft 47 can be rotated under the action of the flip cylinder 46 through a flip transmission assembly disposed between the active flip shaft 47 and the flip cylinder 46.

[0087] The flip transmission assembly includes a transmission rack 49 arranged at the output end of the flip cylinder 46, and a transmission gear 50 meshing with the transmission rack 49 is sleeved on the active flip shaft 47. Preferably, a guide rail slider assembly is arranged between the transmission rack 49 and the flip support frame, and a protective cover is arranged on the outer cover of the flip transmission assembly to prevent the debris generated by grinding from entering the flip transmission assembly and causing the flip transmission assembly to get stuck.

[0088] The flip positioning assembly includes a flip positioning cylinder 51 arranged on the jacking plate, a flip positioning block 51 is arranged at the output end of the flip positioning cylinder 51, and a positioning tooth 52a for meshing with the inner teeth of the gear ring is arranged on the flip positioning block 51. The setting of the flip positioning cylinder makes it easier for the positioning tooth to pass through the polishing hole smoothly up and down, and can also enable the positioning of gear rings of different sizes.

[0089] Preferably, a guide rod assembly identical to that between the flip clamping cylinder and the flip clamping block and used to maintain stable movement is also provided between the flip positioning cylinder and the flip positioning block, and between the placement clamping cylinder and the placement clamping block. The guide rod assembly is prior art.

[0090] The lifting assembly includes a lifting installation plate 53 disposed on the flip support frame, a lifting cylinder 54 is disposed on the lifting installation plate 53, and a lifting plate 55 is disposed after the output end of the lifting cylinder 54 passes through the lifting installation plate 53, and a lifting guide assembly is disposed between the lifting plate 55 and the lifting installation plate 53 to ensure stable movement of the lifting plate 55. Preferably, at least two sets of lifting guide assemblies are provided.

[0091] The lifting guide assembly includes a lifting guide rod 57 slidably arranged on the lifting installation plate 53 through a guide sleeve 56, wherein the upper end of the lifting guide rod 57 is fixed on the lifting plate 55, and the lower end of the lifting guide rod 57 is provided with an anti-slip block 58 after passing through the lifting installation plate 53. Preferably, a lifting limit buffer 59 is provided on the lifting installation plate 53 to prevent the lifting cylinder 54 from failing, and at least three lifting limit buffers are provided.

[0092] The flip support frame includes a mounting base frame 60 extending left and right, and a flip bracket 61 for mounting the flip assembly is provided at both ends of the mounting base frame 60. The driven flip assembly and the active flip assembly are correspondingly provided on the flip brackets. The jacking assembly is provided in the middle of the mounting base frame 60 through the jacking bracket 62. To ensure the supporting effect of the jacking bracket, two jacking brackets are provided at intervals on the left and right, and each column provided at intervals in front and back is provided on the mounting base frame. To ensure the horizontal installation of the entire device, an installation adjustment assembly for adjusting the height of the mounting base frame 60 is provided below the mounting base frame 60, and four sets of installation adjustment assemblies are provided.

[0093] The installation adjustment assembly includes a mounting block 63 and a mounting stop block 64 spaced apart from each other, two adjustment bolts 65 spaced apart from each other, each adjustment bolt 65 is threaded with an adjustment nut 66 located at the upper and lower ends of the mounting block 63 and used to limit the height of the mounting block 63, an L-shaped fixed positioning block 67 is provided on the side of the mounting block 63, and a vertical strip hole 67a for mounting with the mounting block 63 is provided on the fixed positioning block 67, so that the whole device can be used on uneven or inclined ground.

[0094] Preferably, the grinding hole 38a is set as a tapered hole with a smaller upper portion and a larger lower portion, and the inner diameter of the upper end of the grinding hole is between the root circle diameter of the inner teeth of the gear ring and the outer diameter of the gear ring, and is set close to the outer diameter of the gear ring, wherein the gear ring size is the size of the smallest gear ring that can be ground.

[0095] In order to ensure that the flipping platform is in a horizontal state after flipping, it is also equipped with a flipping clamping assembly to prevent the flipping from being incomplete. There are two groups of flipping clamping assemblies, one of which is used to clamp the flipping platform before flipping, and the other is used to clamp the flipping platform after flipping. The two flipping clamping assemblies are symmetrically arranged on the flipping support frame front and back, and a flipping pressed block 68 is correspondingly arranged on the flipping platform 38.

[0096] The flip pressing assembly includes a flip pressing cylinder 69 disposed on the flip support frame, a flip pressing block 70 is disposed at the output end of the flip pressing cylinder 69, and a flip support block 71 is disposed on the flip support frame. When the flip pressing cylinder 69 is working, the flip pressing block 70 is driven to rotate, so that the flip pressed block 68 is pressed on the flip support block 71 through the flip pressing block 70. Preferably, a level detection sensor 72 is disposed on the flip support frame to determine whether the flip platform 38 is in a horizontal state by detecting the position of the flip pressed block 68.

[0097] The grinding process is as follows: in the initial state, one of the flipping and clamping assemblies presses the flip platform onto the flip pressed block, and then places the gear ring on the flip platform, and then the flip positioning assembly rises to be flush with the gear ring under the action of the jacking assembly, and then the flip positioning assembly works to adjust the position of the gear ring through the flip positioning block, and then the flip clamping assembly works to clamp the adjusted gear ring through the flip clamping block, and then the flip positioning assembly is retracted and the jacking assembly descends, and after the jacking assembly descends, it does not affect the flipping of the flip platform, and then the robot grinds one end of the inner tooth, and after the grinding is completed, the flip clamping assembly is released, and then the flip assembly works to realize the flipping of the flip platform, and then the other flip clamping assembly works to keep the flip platform horizontal, and then the robot grinds the other end of the inner tooth, and after the grinding is completed, the flip clamping assembly is released, and then the flip assembly works to realize the flipping of the flip platform, so that the flip platform returns to the initial state, and the flip clamping assembly works to keep the flip platform horizontal, and then the flip clamping assembly is released, and the gear ring is taken out to complete the entire grinding process.

Claims

1. A production line for fully automatic finishing of gear rings, characterized by: The invention comprises a first processing area, a second processing area, a loading area and a unloading area, and the first processing area and the second processing area are arranged at intervals on the left and right. The first processing area is provided with at least one first machine tool (A) for processing the end face or outer circle of the gear ring, and the second processing area is provided with at least one second machine tool (B) for processing the mounting hole of the end face of the gear ring. The loading area is provided with a loading conveying positioning device (C) for conveying from left to right and extending to the first processing area. The unloading area is arranged on the right side of the second processing area, and the unloading area is provided with a unloading trolley positioning device (D) for fixing the unloading trolley. The first processing area, the second processing area, the loading area and the unloading area are provided with a transfer conveyor line (E) that can realize the transfer of the gear ring in each area and is extended to the left and right. The transfer conveyor line (E) is provided with at least one gripping robot (F) for realizing the movement of the gear ring, and the gripping robot (F) can move left and right on the transfer conveyor line (E).

2. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: A loading temporary storage area for temporarily storing gear rings is arranged on the right side of the loading conveying positioning device (C), a unloading temporary storage area for temporarily storing gear rings is arranged on the left side of the unloading vehicle positioning device, and an intermediate temporary storage area for temporarily storing gear rings after the previous processing is arranged in the second processing area. The loading temporary storage area, the unloading temporary storage area and the intermediate temporary storage area are each provided with at least one gear ring temporary storage device (G), and the gear ring temporary storage device (G) comprises a temporary storage table (73), and two gear ring placement areas identical to those on the unloading vehicle for placing gear rings are arranged on the temporary storage table (73) at intervals.

3. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: An intermediate placement device (H) is provided in the first processing area for placing the gear ring so that the gripping robot can change the gripping end. The intermediate placement device (H) includes an intermediate support frame (74). A placement frame (75) for placing the gear ring is provided at one end of the intermediate support frame (74). An arc groove (75a) for placing the gear ring is provided on the placement frame (75). A baffle (75b) for blocking the gear ring is provided on one side of the arc groove (75a) of the placement frame (75). A placement and clamping assembly for clamping the gear ring is provided on the other side of the placement frame (75) of the intermediate support frame (74). The placement and clamping assembly includes a placement and clamping cylinder (76). A placement and clamping block (77) capable of clamping the gear ring against the baffle is provided at the output end of the placement and clamping cylinder (76).

4. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: The gripping robot (F) is provided with a gear ring gripping device for gripping the gear ring, and the gear ring gripping device includes a gripping base plate (78) for installation on the gripping robot, and an automatic three-jaw chuck (79) with an L-shaped clamping jaw (80) is provided on the gripping base plate (78), and the center of the automatic three-jaw chuck (79) does not coincide with the center of the gripping base plate (78) installed on the gripping robot, and a positioning contact (81) for realizing the initial positioning of the gear ring is provided on the clamping jaw (80), and a pad (82) for protecting the gear ring is provided on the inner side of the clamping jaw (80).

5. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: The loading conveying positioning device comprises a loading conveying line (1) that transports from left to right and a loading positioning device arranged at the right end of the loading conveying line (1); the loading positioning device comprises a positioning platform (2), and limit blocks (3) for limiting the position of the gear ring are arranged relatively at the front and rear of the middle part of the positioning platform (2), and the two limit blocks (3) are both arranged on a clamping adjustment component, and the clamping adjustment component is arranged on the positioning platform (2), and the clamping adjustment component can adjust the distance between the two limit blocks (3), and the positioning platform (2) is arranged on a loading support frame (4) through a tilt adjustment component, and the tilt adjustment component is used to adjust the inclination of the positioning platform (2).

6. The production line for fully automatic finishing of gear rings according to claim 5 is characterized in that: The clamping adjustment assembly comprises an adjustment motor (5) arranged below the positioning platform (2); the adjustment motor (5) is provided with a rotating screw (7) extending forward and backward through a clamping transmission assembly (6); and both ends of the rotating screw (7) are rotatably arranged below the positioning platform (2) through a screw seat (8); both front and rear ends of the rotating screw (7) are threadedly connected with a rotating nut (9), and the moving directions of the two rotating nuts (9) are opposite, and each rotating nut (9) is connected to the limit block (3) through a corresponding clamping connection block (10); The tilt adjustment assembly comprises a tilt cylinder (12) whose lower end is hingedly arranged on a tilt cylinder seat (11); the output end of the tilt cylinder (12) is hingedly arranged on the lower left side of the positioning platform (2); the left side of the positioning platform (2) is arranged on a loading support frame (4) via a telescopic column (13); and the right side of the positioning platform (2) is arranged on the loading support frame (4) via a hinge seat (14).

7. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: Two rows of gear ring placement areas for placing gear rings are arranged at intervals in front and behind the unloading trolley. The unloading trolley positioning device comprises a limit baffle (24) arranged on the left side of the unloading trolley stop position and two side baffles (25) arranged on the front and rear sides of the unloading trolley stop position. The limit baffle (24) and the side baffles (25) are both arranged on corresponding support seats (26). The limit baffle (24) is provided with a unloading trolley positioning component for positioning and a unloading trolley fixing component for placing the unloading trolley for movement. The side baffles (25) are provided with a gear ring detection component for detecting the height of the corresponding gear ring after the gear ring is placed in the corresponding gear ring placement area, corresponding to each gear ring placement area.

8. The production line for fully automatic finishing of gear rings according to claim 7 is characterized in that: The gear ring detection assembly comprises a detection rod (27), on which gear ring detection sensors (28) are arranged at intervals in the upper and lower parts for detecting whether there are gear rings at the lowest position and the highest position in the gear ring placement area; The unloading vehicle positioning assembly comprises an unloading vehicle positioning block (29) arranged on the right side of the limit baffle (24), and a positioning groove (30) for the unloading vehicle positioning block (29) to be inserted is arranged on the left side of the unloading vehicle at a position corresponding to the unloading vehicle positioning block (29); The material unloading trolley fixing assembly comprises a material unloading trolley rotating clamping cylinder (34) arranged below the limit baffle (24) through a fixing seat (33); a clamping fixing block (35) is arranged at the output end of the material unloading trolley rotating clamping cylinder (34); a pressed stop block (36) for clamping by the clamping fixing block (35) is arranged below the left end of the material unloading trolley; the fixing seat (33) is arranged in an L-shape; the vertical section of the fixing seat (33) is arranged on the left side surface of the limit baffle (24); the horizontal section of the fixing seat (33) is used to install the material unloading trolley rotating clamping cylinder (34); when the material unloading trolley rotating clamping cylinder (34) is working, the clamping fixing block (35) can press the pressed stop block (36) onto the vertical section of the material unloading trolley rotating clamping cylinder (34).

9. The production line for fully automatic finishing of gear rings according to claim 1 is characterized in that: A grinding area for grinding the inner teeth of the gear ring is arranged on the right side of the second processing area. The grinding area includes a grinding robot (J) and a flipping and fixing device (K) for flipping and fixing the gear ring. The flipping and fixing device (K) includes a flipping platform (38) for placing the gear ring. The flipping platform (38) is arranged on a flipping support frame through a flipping component. A flipping clamping component for clamping the gear ring is arranged on the flipping platform (38). A flipping positioning component for positioning when grinding the inner teeth of the gear ring is arranged on the flipping platform (38) through a jacking component. The flipping platform (38) is provided with a grinding hole (38a) for the grinding robot to extend into for grinding after flipping.

10. The production line for fully automatic finishing of gear rings according to claim 9, characterized in that: The flip clamping assembly comprises two flip clamping blocks (39) respectively arranged on the left and right sides of the grinding hole (38a), at least one of the two flip clamping blocks (39) is provided with a clamping moving assembly for realizing the movement of the flip clamping block (39), the clamping moving assembly comprises a flip clamping cylinder (40) arranged on the flip platform (38), the output end of the flip clamping cylinder (40) is arranged on the corresponding flip clamping block (39), and a guide rod assembly is arranged between the flip clamping cylinder (40) and the corresponding flip clamping block (39) for ensuring the horizontal movement of the flip clamping cylinder; The flip assembly comprises a driven flip assembly and an active flip assembly which are arranged opposite to each other on the left and right sides, the driven flip assembly comprises a driven flip seat (41) arranged on a flip support frame, a driven flip shaft (42) is rotatably arranged on the driven flip seat (41), and the left end of the flip platform (38) is arranged on the driven flip shaft (42) through a driven connecting block (43); The active turning assembly comprises an active turning seat (44) arranged on a turning support frame and a turning cylinder (46) arranged on the turning support frame via a turning drive seat (45); an active turning shaft (47) is rotatably arranged on the active turning seat (44); the right end of the turning platform (38) is arranged on one end of the active turning shaft (47) via an active connecting block (48); the other end of the active turning shaft (47) can be rotated under the action of the turning cylinder (46) via a turning transmission assembly arranged between the active turning shaft (47) and the turning cylinder (46); The flip positioning assembly comprises a flip positioning cylinder (51) arranged on the jacking assembly, the output end of the flip positioning cylinder (51) is provided with a flip positioning block (52), and the flip positioning block (52) is provided with positioning teeth (52a) for meshing with the inner teeth of the gear ring; The jacking assembly comprises a jacking mounting plate (53) arranged on a flip support frame, a jacking cylinder (54) being arranged on the jacking mounting plate (53), a jacking plate (55) being arranged after the output end of the jacking cylinder (54) passes through the jacking mounting plate (53), and a jacking guide assembly for ensuring stable movement of the jacking plate (55) is arranged between the jacking plate (55) and the jacking mounting plate (53).

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