A mother-child tray separation device for an engine production line

Abstract

The present invention relates to the field of engine technology, and discloses a mother-and-child pallet separation device for an engine production line, comprising a mother pallet arranged on a roller conveyor of the engine production line, a child pallet conveying mechanism, a double-fork arm lifting mechanism fixedly arranged above the child pallet conveying mechanism, and an engine discharge mechanism, wherein the engine discharge mechanism is arranged vertically to the child pallet conveying mechanism; the mother pallet comprises a rotatable bottom plate, on which two fork arms are arranged opposite to each other; the engine discharge mechanism is provided with a driving mechanism for driving the bottom plate to rotate; the double-fork arm lifting mechanism comprises a movable mounting frame, and one end of both sides of the mounting frame is rotatably connected with a lifting arm. In the mother-and-child pallet separation device for an engine production line provided by the present invention, the mother pallet can rotate automatically after the child pallet is discharged, so that the double fork arms of the mother pallet can be lifted simultaneously, thereby improving work efficiency, saving space, having a good use effect, and being easy to promote and use.

Description

Technical Field

[0001] The invention relates to the technical field of engines, and in particular to a mother-child tray separation device for an engine production line. Background Art

[0002] The production of the engine is carried out on the general assembly line, and it is transported to each workstation by conveyor rollers for assembly and molding. Among them, before the engine is molded, the cylinder body is placed on the fork arm of the mother pallet for assembly, and a sub-pallet is provided on the mother pallet. When the engine is assembled, the engine is placed on the sub-pallet, and then the engine is placed on the sub-pallet at the engine discharge station for discharge (i.e., the mother-child pallet is separated). At this time, after the sub-pallet and the engine on the mother pallet are discharged, the sub-pallet needs to be re-transported to the mother pallet, and the fork arm of the mother pallet is lifted for the production of the next engine. However, when re-installing the sub-pallet on the mother pallet, the sub-pallet needs to be rotated 90 degrees first to cooperate with the sub-pallet conveying mechanism, but the mother pallet of the current separation device cannot be automatically rotated after the sub-pallet is discharged, and manual operation is required, resulting in low production efficiency. In addition, the fork arms of the current separation device are lifted one by one by a robot, with a long cycle time and low work efficiency. At the same time, the current sub-pallet conveying mechanism and the mother pallet fork arm lifting mechanism are split, occupying a large space. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a mother-child pallet separation device for an engine production line. After the child pallet is discharged, the mother pallet can rotate automatically to achieve the simultaneous lifting of the double fork arms of the mother pallet, thereby improving work efficiency and saving space.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A mother-child pallet separation device for an engine production line comprises a mother pallet arranged on a roller conveyor of the engine production line, a child pallet conveying mechanism, a double fork arm lifting mechanism fixedly arranged above the child pallet conveying mechanism, and an engine discharge mechanism, wherein the engine discharge mechanism is arranged vertically to the child pallet conveying mechanism;

[0006] The mother pallet comprises a rotatable support plate, on which two fork arms are arranged opposite to each other;

[0007] The engine discharge mechanism is provided with a driving mechanism for driving the support plate to rotate;

[0008] The double-fork arm lifting mechanism comprises a movable mounting frame, and one end of both sides of the mounting frame is rotatably connected with a lifting arm.

[0009] Preferably, the double fork arm lifting mechanism also includes two guide rail mounting plates arranged opposite to each other, the lower ends of the guide rail mounting plates are connected to the sub-pallet conveying mechanism, the upper ends of the guide rail mounting plates are provided with a first slide rail, and the mounting frame is slidably mounted on the first slide rail.

[0010] Preferably, a cylinder mounting plate is connected between the two guide rail mounting plates, a movable cylinder is provided on the cylinder mounting plate, and a telescopic rod of the movable cylinder is connected to the mounting frame.

[0011] Preferably, the lifting arm is driven to rotate by a rotating mechanism, and the rotating mechanism includes a second slide rail arranged at one end of the first slide rail, and a sliding seat is slidably connected to the second slide rail, and a rack is provided on the sliding seat, and the rack is driven by a rotating cylinder. A rotating shaft is provided on the mounting frame, and a gear meshing with the rack is provided on the rotating shaft, and the connecting end of the lifting arm is sleeved on the rotating shaft.

[0012] Preferably, the engine discharge mechanism includes a frame, a base plate is provided in the middle of the frame, a pulling-out assembly and a positioning assembly are provided on the base plate, the pulling-out assembly is used to pull the engine out of the mother pallet, the positioning assembly is used to abut against the mother pallet and press down the stopper on the mother pallet when pulling out the engine, a conveying assembly for conveying the engine is provided at the upper end of the frame, and a driving cylinder for driving the base plate to rotate is provided on one side of the upper end of the frame.

[0013] Preferably, the pulling-out assembly includes a first rodless cylinder fixed on the base plate, a pull rod is connected to the first rodless cylinder, the other end of the pull rod is provided with a first mounting block, and also includes a pull block, one end of the pull block is hinged to an end of the mounting block away from the pull rod, and a spring is provided between the middle part of the pull block and the bottom of the first mounting block.

[0014] Preferably, the conveying assembly includes a motor arranged at one end of the frame, a rotating shaft is connected to the output shaft of the motor, a driving sprocket is provided at each end of the rotating shaft, a passive sprocket is provided on each side of the other end of the frame, and a chain is provided between the driving sprocket and the passive sprocket on the same side.

[0015] Preferably, the positioning assembly comprises a positioning cylinder mounting plate arranged on the bottom plate, a positioning cylinder is arranged on the positioning cylinder mounting plate, a connecting plate is arranged on the telescopic rod of the positioning cylinder, guide shafts are arranged at both ends of the connecting plate, a positioning rod is arranged between the two guide shafts, a positioning block is slidably connected to one end of the two guide shafts away from the positioning cylinder, a return spring is sleeved on the guide shaft, and the two ends of the return spring abut against the positioning block and the connecting plate respectively;

[0016] It also includes an opening plate arranged below the guide shaft, the opening plate includes a connecting portion and an opening portion, the connecting portion is connected to the connecting plate, and the width of the opening portion gradually decreases in a direction away from the connecting portion.

[0017] Preferably, the sub-pallet conveying mechanism includes a frame, a support plate is provided in the middle of the frame, a pallet pushing assembly and a pressing assembly are provided on the support plate, the pallet pushing assembly is used to push the sub-pallet onto the mother pallet, the pressing assembly is used to press down the stopper on the mother pallet, and an output assembly for conveying the sub-pallet is provided at the upper end of the frame.

[0018] Preferably, the tray ejection assembly includes a second rodless cylinder fixed on the support plate, a push rod is connected to the second rodless cylinder, a second mounting block is provided at the other end of the push rod, and a pushing block is also included, the pushing block includes a pushing part and a reset part connected to each other, the middle part of the pushing part is hinged to the second mounting block, and a reset spring is provided between the reset part and the bottom of the second mounting block.

[0019] Compared with the prior art, the mother-child pallet separation device of the engine production line according to the embodiment of the present invention has the following beneficial effects: by arranging a driving mechanism for driving the pallet to rotate on the engine discharge mechanism, when the sub-pallet is discharged along with the engine, the driving mechanism drives the pallet to rotate, thereby realizing the automatic rotation of the mother pallet after the sub-pallet is discharged; at the same time, the double-fork arm lifting mechanism is provided with a movable mounting frame, and one end of both sides of the mounting frame is rotatably connected with a lifting arm, and each lifting arm corresponds to a fork arm, so that the double fork arms on the mother pallet can be lifted simultaneously, thereby improving work efficiency. In addition, since the double-fork arm lifting mechanism is fixedly arranged above the sub-pallet conveying mechanism, the double-fork arm lifting mechanism and the sub-pallet conveying mechanism form a whole, thus saving the equipment placement space. The present invention has a simple structure, good use effect, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the mother-child pallet separation device of the engine production line of the present invention.

[0021] Figure 2 It is a schematic diagram of the connection between the mother tray and the letter tray of the present invention.

[0022] Figure 3 It is a schematic diagram of the connection between the sub-pallet conveying mechanism and the double fork arm lifting mechanism of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the double fork arm lifting mechanism of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the engine discharge mechanism of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the positioning assembly of the engine discharge mechanism of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the sub-tray conveying mechanism of the present invention.

[0027] Figure 8 It is a schematic structural diagram of the ejection assembly of the present invention.

[0028] Fig. 9 It is a structural schematic diagram of the push block of the present invention.

[0029] Among them: 1-roller, 2-mother pallet, 21-support plate, 22-fork arm, 23-stopper, 3-sub-pallet conveying mechanism, 31-frame, 32-support plate, 33-pallet pushing assembly, 331-second rodless cylinder, 332-push rod, 333-push block, 3331-push part, 3332-reset part, 34-pressing assembly, 35-output assembly, 4-double fork arm lifting mechanism, 41-mounting frame, 42-lifting arm, 43-guide rail mounting plate, 44-first slide rail, 45-moving cylinder, 46-second slide rail, 47-rack, 48-rotating cylinder, 49-gear, 5-engine discharge mechanism, 51-frame, 52-bottom plate, 53-first rodless cylinder, 54-pull rod, 55-pull block, 56-motor, 57-chain, 58-positioning assembly, 581-positioning cylinder mounting plate, 582-positioning cylinder, 583-guide shaft, 584-positioning rod, 585-positioning block, 586-return spring, 587-opening plate, 6-driving cylinder, 100-sub-tray. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] like Figure 1-2As shown, a preferred embodiment of the present invention is a mother-child pallet separation device for an engine production line, comprising a mother pallet 2 arranged on a roller 1 of an engine production line, a child pallet conveying mechanism 3, a double fork arm lifting mechanism 4 fixedly arranged above the child pallet conveying mechanism 3, and an engine discharge mechanism 5, wherein the engine discharge mechanism 5 is arranged vertically with the child pallet conveying mechanism 3; the mother pallet 2 comprises a rotatable support plate 21, two fork arms 22 are arranged on the support plate 21, and a stopper 23 is arranged on the other side of the support plate 21, and the stopper 23 is retractable; the engine discharge mechanism 5 is provided with a driving mechanism for driving the support plate 21 to rotate; the double fork arm lifting mechanism 4 comprises a movable mounting frame 41, and one end of both sides of the mounting frame 41 is rotatably connected with a lifting arm 42. In addition, a disqualified engine discharge mechanism can also be provided, which is arranged at the discharge end of the engine discharge mechanism 5, and when a disqualified engine appears, it enters the disqualified engine discharge mechanism for repair.

[0032] The mother-child pallet separation device of the engine production line based on the above technical features is provided with a driving mechanism for driving the pallet 21 to rotate on the engine discharge mechanism 5. When the child pallet is discharged along with the engine, the driving mechanism drives the pallet 21 to rotate, thereby realizing the automatic rotation of the mother pallet after the child pallet is discharged; at the same time, the double-fork arm lifting mechanism 4 is provided with a movable mounting frame 41, and one end of both sides of the mounting frame 41 is rotatably connected with a lifting arm 42, and each lifting arm 42 corresponds to a fork arm 22, so that the double fork arms 22 on the mother pallet can be lifted at the same time, thereby improving work efficiency. In addition, since the double-fork arm lifting mechanism 4 is fixedly arranged above the child pallet conveying mechanism 3, the double-fork arm lifting mechanism 4 and the child pallet conveying mechanism 3 form a whole, thereby saving the placement space of the equipment. The present invention has a simple structure, good use effect, and is easy to promote and use.

[0033] Please see attached Figure 3-4 In this embodiment, the double fork arm lifting mechanism 4 further includes two guide rail mounting plates 43 arranged opposite to each other, the lower end of the guide rail mounting plates 43 is connected to the frame body 31 of the sub-tray conveying mechanism 3, the upper end of the guide rail mounting plates 43 is provided with a first slide rail 44, and the mounting frame 41 is slidably arranged on the first slide rail 44 and slides along the first slide rail 44. Specifically, a cylinder mounting plate is connected between the two guide rail mounting plates 43, and a moving cylinder 45 is provided on the cylinder mounting plate, and a telescopic rod of the moving cylinder 45 is connected to the mounting frame 41, and the moving cylinder 45 drives the movement of the mounting frame 41.

[0034] In this embodiment, the lifting arm 42 is driven to rotate by a rotating mechanism, and the rotating mechanism includes a second slide rail 46 provided at one end of the first slide rail 44, and a sliding seat is slidably connected to the second slide rail 46, and a rack 47 is provided on the sliding seat, and the rack 47 is driven by a rotating cylinder 48. A rotating shaft is provided on the mounting frame 41, and a gear 49 meshing with the rack 47 is provided on the rotating shaft, and the connecting end of the lifting arm 42 is sleeved on the rotating shaft. When the rotating cylinder 48 is started, the rack 47 is driven to move along the second slide rail 46, and the rack 47 drives the gear 49 to rotate, and the gear 49 drives the lifting arm 42 to rotate, so as to lift the fork arm 22.

[0035] Please see attached Figure 5-6 In this embodiment, the engine discharge mechanism 5 includes a frame 51, a bottom plate 52 is provided in the middle of the frame 51, and a pull-out assembly and a positioning assembly are provided on the bottom plate 52. The pull-out assembly is used to pull the engine out of the mother pallet 2, and the positioning assembly 58 is used to abut against the mother pallet 2 and press down the stopper 23 on the mother pallet 2 when pulling out the engine. The upper end of the frame 51 is provided with a conveying assembly for conveying the engine. A driving cylinder 6 for driving the pallet 21 to rotate is provided on one side of the upper end of the frame 51. When the mother pallet 2 needs to be rotated for the child pallet to be discharged, the driving cylinder 6 is started to drive the mother pallet 2 to rotate.

[0036] Specifically, the pulling assembly includes a first rodless cylinder 53 fixed on the bottom plate 52, a pull rod 54 is connected to the first rodless cylinder 53, the other end of the pull rod 54 is provided with a first mounting block, and a pull block 55, one end of the pull block 55 is hinged to the end of the mounting block away from the pull rod 54, and a spring is provided between the middle of the pull block 55 and the bottom of the first mounting block. When the engine needs to be discharged (i.e., the mother-child tray is separated), the first rodless cylinder 53 is started, and the pull rod 54 is driven to drive the pull block 55 to move toward the direction of the engine. During the movement, the pull block 55 is abutted by the bottom surface of the child tray, compressing the spring. When the pull block 55 exceeds the child tray, the pull block 55 bounces up under the action of the spring and abuts on one side of the child tray. Then the first rodless cylinder 53 moves in the opposite direction to pull the child tray out together with the engine. When it is pulled to the conveying assembly, the pulling stops, and the conveying assembly is started to output the engine.

[0037] The conveying assembly includes a motor 56 disposed at one end of the frame 51, the output shaft of the motor 56 is connected to a rotating shaft, a driving sprocket is disposed at each end of the rotating shaft, a passive sprocket is disposed at each side of the other end of the frame, and a chain 57 is disposed between the driving sprocket and the passive sprocket on the same side. During conveying, the motor 56 is started to drive the driving sprocket to rotate, and the sub-pallet is driven to move on the chain 57. At the same time, in order to prevent the sub-pallet from shifting during movement, a guide bar is disposed on one side of the chain 57, and the sub-pallet moves along the guide bar.

[0038] The positioning assembly 58 includes a positioning cylinder mounting plate 581 arranged on the base plate 52, a positioning cylinder 582 is provided on the positioning cylinder mounting plate 581, a connecting plate is provided on the telescopic rod of the positioning cylinder 582, guide shafts 583 are provided at both ends of the connecting plate, a positioning rod 584 is provided between the two guide shafts 583, a positioning block 585 is slidably connected at one end of the two guide shafts away from the positioning cylinder 582, a return spring 586 is sleeved on the guide shaft, and the two ends of the return spring 586 respectively abut the positioning block 584 and the connecting plate, and also includes an opening plate 587 arranged below the guide shaft. When the engine is discharged, the positioning cylinder 582 is started, driving the positioning block to move toward the mother tray 2. When the positioning block 584 abuts against the mother tray 2, the opening plate 587 abuts against the stopper 23, and then the positioning cylinder 582 moves forward further, and stops moving when it moves to the positioning plate 585 abutting against the positioning rod 584. At this time, the opening plate 587 also completely presses down the stopper 23, and then the pulling assembly is started to pull out the engine to ensure the smooth removal of the sub-tray. At the same time, in order to facilitate the opening plate 587 to press down the stopper 23, the opening plate 587 includes a connecting portion and an opening portion, the connecting portion is connected to the connecting plate, and the width of the opening portion gradually decreases in the direction away from the connecting portion. Preferably, the angle between the lower surface of the opening portion and the horizontal plane is 25-35 degrees, preferably 30 degrees.

[0039] Please see attached Figure 7-9In this embodiment, the sub-pallet conveying mechanism 3 includes a frame 31, a support plate 32 is provided in the middle of the frame 31, and a pallet pushing assembly 33 and a pressing assembly 34 are provided on the support plate 32. The pallet pushing assembly 33 is used to push the sub-pallet onto the mother pallet 2, and the pressing assembly 34 is used to press down the stopper 23 on the mother pallet 2. The upper end of the frame 31 is provided with an output assembly 35 for conveying the sub-pallet. The pressing assembly 34 has the same structure as the positioning assembly 58. When loading materials on the mother pallet 2 is required, it drives the stopper 23 to move downward. When the sub-pallet is installed and returned, the stopper 23 pops up again. The output assembly 35 has the same structure as the above-mentioned conveying assembly, which will not be repeated here.

[0040] The tray ejection assembly 33 includes a second rodless cylinder 331 fixed on the support plate 32, and a push rod 332 is connected to the second rodless cylinder 331. The other end of the push rod 332 is provided with a second mounting block, and also includes a pushing block 333. The pushing block 333 includes a pushing part 3331 and a reset part 3332 connected to each other. The middle part of the pushing part 3331 is hinged to the second mounting block, and a reset spring is provided between the reset part 3332 and the bottom of the second mounting block. When it is necessary to push the sub-pallet onto the mother pallet 2, the output component 35 first transports a sub-pallet to the front of the pushing block 333. During the transportation process, the bottom surface of the sub-pallet presses down the pushing portion 3331 and moves forward in contact with its surface. After passing over the pushing portion 3331, the pushing portion 3331 is lifted up under the action of the return spring and abuts against one side of the sub-pallet. At this time, the output component 35 stops, and the second rodless cylinder 331 starts to drive the pushing block 333 to push the sub-pallet out.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A mother-child tray separation device for an engine production line, characterized by: It includes a mother pallet arranged on a roller conveyor of an engine production line, a sub-pallet conveying mechanism, a double fork arm lifting mechanism fixedly arranged above the sub-pallet conveying mechanism, and an engine discharge mechanism, wherein the engine discharge mechanism is arranged vertically to the sub-pallet conveying mechanism; The mother pallet comprises a rotatable support plate, on which two fork arms are arranged opposite to each other; The engine discharge mechanism is provided with a driving mechanism for driving the support plate to rotate; The double fork arm lifting mechanism comprises a movable mounting frame, one end of each side of the mounting frame is rotatably connected with a lifting arm, each lifting arm corresponds to a fork arm, so that the double fork arms on the mother pallet can be lifted simultaneously; The double fork arm lifting mechanism also includes two guide rail mounting plates arranged opposite to each other, the lower ends of the guide rail mounting plates are connected to the sub-pallet conveying mechanism, the upper ends of the guide rail mounting plates are provided with a first slide rail, and the mounting frame is slidably arranged on the first slide rail; The lifting arm is driven to rotate by a rotating mechanism, and the rotating mechanism includes a second slide rail arranged at one end of the first slide rail, a sliding seat is slidably connected to the second slide rail, a rack is arranged on the sliding seat, and the rack is driven by a rotating cylinder, a rotating shaft is arranged on the mounting frame, a gear meshing with the rack is arranged on the rotating shaft, and the connecting end of the lifting arm is sleeved on the rotating shaft; A cylinder mounting plate is connected between the two guide rail mounting plates, a movable cylinder is arranged on the cylinder mounting plate, and a telescopic rod of the movable cylinder is connected to the mounting frame.

2. The mother-child tray separation device for an engine production line according to claim 1, characterized in that: The engine discharge mechanism includes a frame, a bottom plate is provided in the middle of the frame, a pull-out assembly and a positioning assembly are provided on the bottom plate, the pull-out assembly is used to pull the engine out of the mother pallet, the positioning assembly is used to abut against the mother pallet and press down the stopper on the mother pallet when pulling out the engine, a conveying assembly for conveying the engine is provided at the upper end of the frame, and a driving cylinder for driving the bottom plate to rotate is provided on one side of the upper end of the frame.

3. The mother-child tray separation device for an engine production line according to claim 2, characterized in that: The pulling-out assembly includes a first rodless cylinder fixedly mounted on the base plate, a pull rod being connected to the first rodless cylinder, a first mounting block being provided at the other end of the pull rod, and a pull block, one end of the pull block being hinged to an end of the mounting block away from the pull rod, and a spring being provided between the middle of the pull block and the bottom of the first mounting block.

4. The mother-child tray separation device for an engine production line according to claim 2, characterized in that: The conveying assembly includes a motor arranged at one end of the frame, a rotating shaft is connected to the output shaft of the motor, a driving sprocket is provided at each end of the rotating shaft, a passive sprocket is provided at each side of the other end of the frame, and a chain is provided between the driving sprocket and the passive sprocket on the same side.

5. The mother-child tray separation device for an engine production line according to claim 2, characterized in that: The positioning assembly comprises a positioning cylinder mounting plate arranged on the bottom plate, a positioning cylinder is arranged on the positioning cylinder mounting plate, a connecting plate is arranged on the telescopic rod of the positioning cylinder, guide shafts are arranged at both ends of the connecting plate, a positioning rod is arranged between the two guide shafts, a positioning block is slidably connected to one end of the two guide shafts away from the positioning cylinder, a return spring is sleeved on the guide shaft, and the two ends of the return spring abut against the positioning block and the connecting plate respectively; It also includes an opening plate arranged below the guide shaft, the opening plate includes a connecting portion and an opening portion, the connecting portion is connected to the connecting plate, and the width of the opening portion gradually decreases in a direction away from the connecting portion.

6. The mother-child tray separation device for an engine production line according to claim 1, characterized in that: The sub-pallet conveying mechanism includes a frame, a support plate is provided in the middle of the frame, a pallet pushing assembly and a pressing assembly are provided on the support plate, the pallet pushing assembly is used to push the sub-pallet onto the mother pallet, the pressing assembly is used to press down the stopper on the mother pallet, and an output assembly for conveying the sub-pallet is provided at the upper end of the frame.

7. The mother-child tray separation device for an engine production line according to claim 6, characterized in that: The tray ejection assembly includes a second rodless cylinder fixedly mounted on the support plate, a push rod being connected to the second rodless cylinder, a second mounting block being provided at the other end of the push rod, and a pushing block including a pushing portion and a reset portion being connected to each other, a middle portion of the pushing portion being hinged to the second mounting block, and a reset spring being provided between the reset portion and the bottom of the second mounting block.

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