Engine body turnover machine

Abstract

The invention discloses an engine body upender which comprises a portal frame structure used for supporting the whole device. The lifting mechanisms are symmetrically arranged on the two sides of the portal frame structure and used for driving an engine body to move up and down; the turnover mechanism is connected with the lifting mechanism and used for controlling the engine mechanism to turn over; the clamping mechanisms are symmetrically arranged on the turnover mechanism, are of a split structure and are used for clamping and fixing concave surfaces of engines of various types, the engine body turnover machine overcomes the defects that in the prior art, a rack production line of an engine turnover machine is insufficient in compatibility, transmission efficiency of all mechanisms is low, maintainability is poor and clamping adaptability is weak, the flexible clamping requirement is met, and the production efficiency of the engine body turnover machine is improved. The overturning device is high in overturning efficiency, convenient to maintain, low in cost and capable of being suitable for engines of various types, and use convenience is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, in particular to an engine body turning machine. Background Art

[0002] The engine body needs to be flipped during the assembly process. The existing engine body flipping device has the following defects: (1) It mostly uses a welded fixed frame, and the spacing cannot be adjusted. It is difficult to adapt to different models of engines or changes in production line layout, resulting in low flexibility of the production line; (2) The lifting mechanism of the engine flipping machine is mostly based on hydraulic cylinders or chain transmission. The hydraulic system is prone to leakage and the synchronization accuracy depends on the diverter valve. The chain transmission efficiency is low and requires frequent lubrication and maintenance: (3) The engine flipping mechanism is often driven by gear racks or hydraulic motors, and mostly uses integral bearings or cross roller bearings. The load-bearing capacity is limited and maintenance requires the entire machine to be disassembled, resulting in high maintenance costs; (4) The clamping mechanism of the engine flipping machine is mainly based on mechanical clamps or hydraulic clamps. It is often a fixed structure and cannot be flexibly adjusted in position. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an engine body turning machine, which overcomes the shortcomings of the existing technology such as insufficient compatibility of the engine turning machine frame production line, low transmission efficiency of each mechanism, poor maintainability, and weak clamping adaptability. It meets the flexible clamping requirements, has high turning efficiency, convenient and low-cost maintenance, can be adapted to various types of engines, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an engine body turning machine, comprising:

[0005] Gantry structure, used to support the entire device;

[0006] A lifting mechanism is symmetrically arranged on both sides of the gantry structure, and is used to drive the engine body to move up and down;

[0007] A turning mechanism, connected to the lifting mechanism, for controlling the turning of the engine mechanism;

[0008] The clamping mechanism is symmetrically arranged on the flipping mechanism and adopts a split structure, and is used for clamping and fixing the concave surface of engines of various models.

[0009] As a preferred technical solution of the present invention, the gantry structure includes a front gantry, a rear gantry and an intermediate fixing frame. The front gantry and the rear gantry are arranged opposite to each other, and the intermediate fixing frame is fixed between the lower ends of the front gantry and the rear gantry.

[0010] As a preferred technical solution of the present invention, the lifting mechanism is respectively arranged on the front gantry and the rear gantry, and the lifting mechanism includes a lifting drive motor, a lifting drive reducer, a gear shaft, a gear shaft fixing seat, a gear box, a rack, a turning mechanism fixing frame, a slider and a guide rail;

[0011] The lifting drive motor is connected to the lifting drive reducer, the gear box is arranged at the upper end of the lifting drive reducer, the gear shaft horizontally passes through the gear box and the gear shaft fixing seat, the gear box and the gear shaft fixing seat are both fixed on one side of the flipping mechanism fixing frame, and spur gears are fixed at both ends of the gear shaft, the spur gears are meshed with the rack, and the rack is fixed on the corresponding front gantry or rear gantry, and sliders are symmetrically provided at both ends of the flipping mechanism fixing frame, the sliders are slidably connected to the guide rails, and the guide rails are fixed on the corresponding front gantry or rear gantry.

[0012] As a preferred technical solution of the present invention, the flip mechanism includes a flip drive motor, a flip drive reducer, a fixed ring, a sliding ring, a gear ring, a rotating plate and a flip support frame. The flip drive motor, flip drive reducer, fixed ring, sliding ring, gear ring and rotating plate are each two in number and are respectively mounted on the flip mechanism fixing frames of the two lifting mechanisms;

[0013] The flip drive motor is connected to the flip drive reducer, and the flip drive reducer is fixed to the flip mechanism fixing frame. The fixing ring is an annular steel ring, and the fixing ring is fixed to the center position of the flip mechanism fixing frame by screws around it. The sliding ring is installed on the inner ring of the gear ring, and the sliding ring is sleeved on the outer side of the fixing ring, and the sliding ring is rotatable relative to the fixing ring. The teeth on the outer side of the gear ring are engaged with the output gear of the flip drive reducer. One end of the gear ring is fixedly connected to the rotating plate, and the flip support frame is symmetrically fixed between the two rotating plates.

[0014] As a preferred technical solution of the present invention, the number of the clamping mechanisms is two, and the two clamping mechanisms are respectively fixed on one side of the rotating plate, and the two clamping mechanisms are arranged opposite to each other, and the clamping mechanism includes a hydraulic cylinder, a sliding bearing cover plate, a sliding bearing, a guide rod, a fixed base plate, a transition plate, a slide rail and a clamping block;

[0015] There are two hydraulic cylinders, which are symmetrically fixed to the upper end of the flip support frame. Two sliding bearings and sliding bearing cover plates are respectively installed at two through-hole positions of the flip support frame. The guide rod passes through the sliding bearing and can move horizontally in the sliding bearing. The other end of the guide rod is connected to the lower end of the fixed base plate through a flange, and the upper end of the fixed base plate is connected to the telescopic end of the hydraulic cylinder. A transition plate is provided on one side of the fixed base plate, and a slide rail is provided on one side of the transition plate. The fixed base plate, the transition plate and the slide rail are connected by bolts. Two clamping blocks are slidably connected to one side of the slide rail, and the clamping block is connected to the slide rail by screws.

[0016] As a preferred technical solution of the present invention, one side of the clamping block is an arc-shaped protrusion structure, one side of the arc-shaped protrusion structure is connected to the polyurethane friction plate by a screw, and the outer surface of the polyurethane friction plate is an arc-shaped surface adapted to the arc-shaped protrusion of the clamping block.

[0017] Compared with the prior art, the present invention has the following advantages: (1) a modular gantry design is adopted, and the front and rear gantries are connected to the flip support frame by disassembling the intermediate fixed frame, which can adapt to different models of engines or changes in production line layout; (2) an efficient lifting transmission system is adopted, and the gear-rack and bevel gear composite transmission efficiency is high, and the symmetrical layout of the double spur gears eliminates lateral torque, has a simple structure, stable transmission, and low maintenance cost; (3) a split flip mechanism is adopted, and the sliding ring-fixing ring bearing pair design replaces the cross roller bearing, which has a high load-bearing capacity. During maintenance, only the sliding ring assembly needs to be replaced, which is convenient for maintenance; (4) an adaptive clamping mechanism is adopted, and the up and down movement and the horizontal movement of the axis are realized through the lifting mechanism and the guide rail slider assembly, which can adapt to the concave clamping position of each model engine. The split clamping mechanism is adopted, which is easy to repair and reduces maintenance costs. The slider is inlaid with polyurethane friction plates to protect the engine surface from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the gantry structure of the present invention;

[0020] Figure 3 It is a structural diagram of the lifting mechanism;

[0021] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram of the internal structure of the gearbox;

[0022] Figure 5 It is a structural diagram of the flip mechanism;

[0023] Figure 6This is the exploded diagram of the flip mechanism;

[0024] Figure 7 Structural diagram of the clamping mechanism;

[0025] Figure 8 The exploded diagram of the clamping mechanism;

[0026] Figure 9 It is a schematic diagram of the state of clamping the engine body of the present invention.

[0027] In the figure: 101 gantry structure, 102 lifting mechanism, 103 flipping mechanism, 104 clamping mechanism, 1 front gantry, 2 rear gantry, 3 intermediate fixed frame, 4 lifting drive motor, 5 lifting drive reducer, 6 gear shaft, 7 gear shaft fixing seat, 8 gear box, 9 rack, 10 flipping mechanism fixing frame, 11 slider, 12 guide rail, 13 flipping drive motor, 14 flipping drive reducer, 15 fixing ring, 16 sliding ring, 17 gear ring, 18 rotating plate, 19 flipping support frame, 20 hydraulic cylinder, 21 rolling bearing cover plate, 22 rolling bearing, 23 guide rod, 24 fixed base plate, 25 transition plate, 26 slide rail, 27 clamping block, 28 polyurethane friction plate. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is Figure 1 Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0029] See also Figure 1-9 , the present invention provides a technical solution: an engine body turning machine, comprising a gantry structure 101, a lifting mechanism 102, a turning mechanism 103 and a clamping mechanism 104;

[0030] The gantry structure 101 includes a front gantry 1, a rear gantry 2, and an intermediate fixing frame 3. The front gantry 1 and the rear gantry 2 are arranged opposite each other, and the intermediate fixing frame 2 is fixed between the lower ends of the front gantry 1 and the rear gantry 2. The gantry structure 101 is used to fix the lifting mechanism 102, which is installed and fixed on the engine assembly production line across the line to determine the overall spatial position of the turnover machine. The distance between the front and rear gantries can be adjusted by replacing the detachable intermediate fixing frame 3 and the turnover support frame 19 to adapt to different types of engines or the space of the engine assembly production line, significantly improving the flexibility of the engine assembly line.

[0031] There are two lifting mechanisms 102, which are respectively arranged on the front gantry 1 and the rear gantry 2. The lifting mechanism 102 includes a lifting drive motor 4, a lifting drive reducer 5, a gear shaft 6, a gear shaft fixing seat 7, a gear box 8, a rack 9, a turning mechanism fixing frame 10, a slider 11 and a guide rail 12;

[0032] The lifting drive motor 4 is connected to the lifting drive reducer 5, the gear box 6 is arranged at the upper end of the lifting drive reducer 5, the gear box 8 and the gear shaft fixing seat 7 are both fixed to one side of the flip mechanism fixing frame 10, and spur gears are provided at both ends of the gear shaft 6. A driven bevel gear is provided at the middle position of the gear shaft 6. The gear shaft 6 passes through the gear shaft fixing seat 7 and the gear box 8, and the gear shaft 6 is connected to the gear box 8 through a rolling bearing. The driving bevel gear on the output shaft of the lifting drive reducer 5 is meshed with the driven bevel gear on the gear shaft 6 inside the gear box 7, and the spur gear is meshed with the rack 9. The rack 9 is fixed on the corresponding front gantry 1 or rear gantry 2, and sliders 11 are symmetrically provided at both ends of the flip mechanism fixing frame 10. The sliders 11 are slidably connected to the guide rails 12, and the guide rails 12 are fixed on the corresponding front gantry 1 or rear gantry 2. When the lifting drive motor 4 is working, the output power is reduced in speed and increased in torque by the lifting drive reducer 5, and then drives the gear shaft 6 to rotate through the bevel gear meshing transmission. The spur gears at both ends of the gear shaft 6 and the rack 9 on the gantry structure 101 engage to generate a reaction force, driving the entire lifting mechanism 102 to rise or fall along the guide rail 12.

[0033] The flip mechanism 103 includes a flip drive motor 13, a flip drive reducer 14, a fixed ring 15, a sliding ring 16, a ring gear 17, a rotating plate 18, and a flip support frame 19. The flip drive motor 13, the flip drive reducer 14, the fixed ring 15, the sliding ring 16, the ring gear 17, and the rotating plate 18 are each two in number and are respectively mounted on the flip mechanism fixing frames 10 of the two lifting mechanisms 102;

[0034] The turning drive motor 13 is connected to the turning drive reducer 14, and the turning drive reducer 14 is fixed on the turning mechanism fixing frame 10. The fixing ring 15 is an annular steel ring. The fixing ring 15 is fixed to the center position of the turning mechanism fixing frame 10 by screws around it. The sliding ring 16 is installed on the inner ring of the ring gear 17. The sliding ring 16 is sleeved on the outer side of the fixing ring 15, and the sliding ring 16 is rotatable relative to the fixing ring 15. The teeth on the outer side of the ring gear 17 are meshed with the output gear of the turning drive reducer 14. One end of the ring gear 17 is fixedly connected to the rotating plate 18. The turning support frame 19 is symmetrically fixed between the two rotating plates 18. When the turning drive motor 13 is working, the output power is reduced in speed and increased in torque by the turning drive reducer 14, and then driven by the meshing of its output gear to rotate the ring gear 17 around the fixing ring 15, thereby causing the rotating plate 18, the turning support frame 19, and the engine body assembly to turn around the central axis of the fixing ring 15. The turning mechanism has a simple structure and adopts a split structure for easy maintenance.

[0035] There are two clamping mechanisms 104, each fixed on one side of the rotating plate 18 and arranged opposite to each other. The clamping mechanism 104 includes a hydraulic cylinder 20, a sliding bearing cover plate 21, a sliding bearing 22, a guide rod 23, a fixed base plate 24, a transition plate 25, a slide rail 26 and a clamping block 27.

[0036] There are two hydraulic cylinders 20, which are symmetrically fixed on the upper end of the flip support frame 19. The two sliding bearings 22 and the sliding bearing cover plate 21 are respectively installed at the two perforated positions of the flip support frame 19. The guide rod 23 passes through the sliding bearing 22 and the guide rod 23 can move horizontally in the sliding bearing 22. The other end of the guide rod 23 is connected to the lower end of the fixed base plate 24 through a flange. The upper end of the fixed base plate 24 is connected to the telescopic end of the hydraulic cylinder 20. Three-point positioning is achieved by the hydraulic cylinder 20 and the two guide rods 23. A transition plate is provided on one side of the fixed base plate 24. 25. A slide rail 26 is provided on one side of the transition plate 25. The fixed base plate 24, the transition plate 25 and the slide rail 26 are connected by bolts. Two clamping blocks 27 are slidably connected to one side of the slide rail 26. The clamping blocks 27 are connected to the slide rail 26 by screws. During the clamping operation, the hydraulic cylinder 20 starts feeding, pushing the fixed base plate 24, the transition plate 25, the slide rail 26 and the clamping blocks 27 to move toward the concave arc surface of the engine body until the clamping block 27 is pressed to a certain pressure on the engine to complete the clamping operation. After the flip is completed, the hydraulic cylinder control switch controls the hydraulic cylinder 20 to return to the initial position;

[0037] Each flip support frame 19 is equipped with at least two clamping mechanisms 104, which ensure stable clamping of the engine body through four-point positioning. The clamping mechanism 104 adopts a split design and can clamp the side concave surfaces of engines of different models by replacing the clamping blocks 27; at the same time, the clamping blocks 27 can slide along the slide rails 26 to adjust their positions horizontally. Combined with the lifting mechanism 102, the position can be changed in a certain up and down, left and right space to adapt to different clamping positions, and it has strong universality.

[0038] In order to avoid clamping damage to the engine body, one side of the clamping block 27 is an arc-shaped protrusion structure, and one side of the arc-shaped protrusion structure is connected to the polyurethane friction plate 28 by screws. The outer side surface of the polyurethane friction plate 28 is an arc-shaped surface that matches the arc-shaped protrusion of the clamping block 27.

[0039] When the engine body is turned over, the specific process is described as follows:

[0040] 1) The engine body moves through the production line to the turning station and stops;

[0041] 2) After receiving the engine arrival signal, the production line position sensor transmits the signal to the control system. After receiving the signal, the control system first sends an instruction to the lifting mechanism 102 according to the preset program;

[0042] 3) The lifting drive motor 4 starts to rotate forward after receiving the control system command. The output end is reduced in speed and torque increased by the lifting drive reducer 5, and then the power is transmitted to the gear shaft 6 through the bevel gear transmission in the gear box 8;

[0043] 4) The gear shaft 6 rotates, generating a downward force due to the reaction force of the rack 9. This force is transmitted to the flip mechanism fixed frame 10, causing it to move downward along the guide rail 12, and driving the flip mechanism 103 to move synchronously. After moving to the appropriate height, the position sensor of the gantry structure 101 receives the position arrival signal of the slider 11 and transmits it to the control system;

[0044] 5) After receiving the signal, the control system sends a command to the clamping mechanism 104, and the hydraulic cylinder control switch starts working to evenly supply oil to the hydraulic cylinder 20, and the four hydraulic cylinders 20 on the two flip support frames 19 produce synchronous feeding action;

[0045] 6) The fixed base plate 24, transition plate 25, slide rail 26 and clamping block 27 components are pushed towards the engine by the output shaft of the hydraulic cylinder 20 until the polyurethane friction plate 28 is pressed against the engine to a certain pressure, completing the clamping operation and feeding the information back to the control system;

[0046] 7) After receiving the information that the clamping operation is completed, the control system sends a command to the lifting mechanism 102 again, instructing the lifting drive motor 4 to reverse and drive the flip mechanism fixing frame 10 to move upward, thereby lifting the entire flip mechanism 103, the clamping mechanism 104 and the engine to a suitable height, and transmits the information to the control system through the position sensor;

[0047] 8) After receiving the signal, the control system sends a command to the flip mechanism 103. The flip drive motor 13 receives the command and starts to rotate. The output end is reduced in speed and torque increased by the flip drive reducer 14 and then the power is transmitted to the ring gear 17.

[0048] 9) The ring gear 17 rotates around the centerline of the fixed ring 15, driving the rotating plate 18, the flip support frame 19, and the clamping mechanism 104 structural components to rotate synchronously, thereby flipping the engine to a specified angle and then stopping. The position sensor transmits information to the control system;

[0049] 10) After receiving the signal, the control system sends a command to the lifting mechanism 102 again, requiring the lifting drive motor 4 to rotate forward to drive the engine down to the appropriate position and then stop, and transmit the information to the control system through the position sensor;

[0050] 11) After receiving the signal, the control system sends a command to the clamping mechanism 104 again. The hydraulic cylinder control switch starts to work and supplies oil to the hydraulic cylinder 20 in the reverse direction evenly. The output shaft of the hydraulic cylinder 20 moves back to return the clamping mechanism 104 to its original position.

[0051] 12) After the clamping mechanism 104 returns to its original position, the control system first sends a command to the lifting mechanism 102, requesting the lifting mechanism 102 to return to its original position, and then sends a command to the flipping mechanism 103, requesting the flipping mechanism to recover;

[0052] 13) The engine completes the flipping operation and moves to the next station along the production line.

[0053] Parts of the invention not described in detail are prior art. Although embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An engine body turning machine, characterized in that: include: A gantry structure (101) for supporting the entire device; A lifting mechanism (102) is symmetrically arranged on both sides of the gantry structure (101) and is used to drive the engine body to move up and down; A turning mechanism (103), connected to the lifting mechanism (102), is used to control the turning of the engine mechanism; The clamping mechanism (104) is symmetrically arranged on the flipping mechanism (103) and adopts a split structure, and is used for clamping and fixing the concave surface of engines of various models.

2. The engine body turning machine according to claim 1, characterized in that: The gantry structure (101) comprises a front gantry (1), a rear gantry (2) and an intermediate fixing frame (3); the front gantry (1) and the rear gantry (2) are arranged relative to each other; and the intermediate fixing frame (2) is fixed between the lower ends of the front gantry (1) and the rear gantry (2).

3. The engine body turning machine according to claim 1, characterized in that: The lifting mechanism (102) is respectively arranged on the front gantry (1) and the rear gantry (2), and the lifting mechanism (102) includes a lifting drive motor (4), a lifting drive reducer (5), a gear shaft (6), a gear shaft fixing seat (7), a gear box (8), a rack (9), a turning mechanism fixing frame (10), a slide block (11) and a guide rail (12); The lifting drive motor (4) is connected to the lifting drive reducer (5), the gear box (6) is arranged at the upper end of the lifting drive reducer (5), the gear shaft (6) horizontally passes through the gear box (8) and the gear shaft fixing seat (7), the gear box (8) and the gear shaft fixing seat (7) are both fixed to one side of the turnover mechanism fixing frame (10), both ends of the gear shaft (6) are fixed with spur gears, the spur gears are meshed and connected with the rack (9), the rack (9) is fixed on the corresponding front gantry (1) or rear gantry (2), and sliders (11) are symmetrically arranged at both ends of the turnover mechanism fixing frame (10), the sliders (11) are slidably connected to the guide rails (12), and the guide rails (12) are fixed on the corresponding front gantry (1) or rear gantry (2).

4. The engine body turning machine according to claim 3, characterized in that: The flipping mechanism (103) comprises a flipping drive motor (13), a flipping drive reducer (14), a fixed ring (15), a sliding ring (16), a gear ring (17), a rotating plate (18) and a flipping support frame (19). The flipping drive motor (13), the flipping drive reducer (14), the fixed ring (15), the sliding ring (16), the gear ring (17) and the rotating plate (18) are each two in number and are respectively mounted on the flipping mechanism fixing frames (10) of the two lifting mechanisms (102); The flip drive motor (13) is connected to the flip drive reducer (14), and the flip drive reducer (14) is fixed on the flip mechanism fixing frame (10). The fixing ring (15) is an annular steel ring, and the fixing ring (15) is fixed to the center position of the flip mechanism fixing frame (10) by screws around it. The sliding ring (16) is installed on the inner ring of the gear ring (17), and the sliding ring (16) is sleeved on the outer side of the fixing ring (15). The sliding ring (16) is rotatable relative to the fixing ring (15). The teeth on the outer side of the gear ring (17) are engaged with the output gear of the flip drive reducer (14). One end of the gear ring (17) is fixedly connected to the rotating plate (18), and the flip support frame (19) is symmetrically fixed between the two rotating plates (18).

5. The engine body turning machine according to claim 1, characterized in that: There are two clamping mechanisms (104), which are respectively fixed on one side of the rotating plate (18) and arranged opposite to each other. The clamping mechanisms (104) include a hydraulic cylinder (20), a sliding bearing cover plate (21), a sliding bearing (22), a guide rod (23), a fixed base plate (24), a transition plate (25), a slide rail (26) and a clamping block (27). The number of the hydraulic cylinders (20) is two, and the two hydraulic cylinders (20) are symmetrically fixed on the upper end of the flip support frame (19). The two sliding bearings (22) and the sliding bearing cover plate (21) are respectively installed at two perforated positions of the flip support frame (19). The guide rod (23) passes through the sliding bearing (22) and the guide rod (23) can move horizontally in the sliding bearing (22). The other end of the guide rod (23) is connected to the fixed base plate (24) through a flange. The lower end is connected, the upper end of the fixed base plate (24) is connected to the telescopic end of the hydraulic cylinder (20), a transition plate (25) is provided on one side of the fixed base plate (24), a slide rail (26) is provided on one side of the transition plate (25), the fixed base plate (24), the transition plate (25) and the slide rail (26) are connected by bolts, one side of the slide rail (26) is slidably connected to two clamping blocks (27), and the clamping block (27) is connected to the slide rail (26) by screws.

6. The engine body turning machine according to claim 5, characterized in that: One side of the clamping block (27) is an arc-shaped protrusion structure, one side of the arc-shaped protrusion structure is connected to the polyurethane friction plate (28) through a screw, and the outer side surface of the polyurethane friction plate (28) is an arc-shaped surface adapted to the arc-shaped protrusion of the clamping block (27).

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