CN117943859B - Be used for planet carrier processing self-holding device - Google Patents
Be used for planet carrier processing self-holding device Download PDFInfo
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- CN117943859B CN117943859B CN202410349566.9A CN202410349566A CN117943859B CN 117943859 B CN117943859 B CN 117943859B CN 202410349566 A CN202410349566 A CN 202410349566A CN 117943859 B CN117943859 B CN 117943859B
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- inner cavity
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- planet carrier
- piston
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- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000000969 carrier Substances 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 43
- 238000003754 machining Methods 0.000 claims description 14
- 230000006978 adaptation Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 description 22
- 239000003921 oil Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of planet carrier processing, and particularly discloses an automatic clamping device for planet carrier processing, which comprises the following components: the hydraulic cylinder is arranged in the middle of the bottom end of the inner cavity of the base; the piston cylinder is arranged at the top end of the hydraulic cylinder; the fixing mechanism is arranged at the top end of the base; the piston is slidably matched and inserted into the top end of the inner cavity of the piston cylinder, is positioned below the third hydraulic pipe and is positioned above the first hydraulic pipe; the bottom of piston rod sets up in the top middle part of piston, and the top slidable of piston rod extends the top of piston cylinder. The device can adapt to the planetary carriers with different sizes and shapes, the application range of the device is increased, so that the flexibility and the universality of the device are improved, the device can effectively avoid the phenomenon that the traditional device is uneven in clamping force and causes position deviation or instability in the clamping process due to pressure errors in the clamping process, and the processing precision and the processing efficiency are further increased.
Description
Technical Field
The invention relates to the technical field of planet carrier machining, in particular to an automatic clamping device for planet carrier machining.
Background
The planetary carrier is a mechanical element for transmitting power and carrying devices, is generally applied to various mechanical transmission systems, plays an important role in the fields of automobiles, aerospace, machine tools and the like, and is required to be clamped by a clamping device in order to ensure that workpieces can be stably and precisely machined in the manufacturing and machining processes of the planetary carrier;
The conventional planet carrier clamping device is generally composed of a clamping mechanism and a positioning mechanism, and clamps and releases the planet carrier in a manual or semi-automatic mode, however, the clamping device has the problem that the application range is limited, cannot be suitable for the planet carriers with different sizes and shapes, has certain limitation, and influences the flexibility and the universality of the clamping device in production;
In addition, a plurality of oil cylinders are matched to clamp and fix the planet carrier in the traditional clamping device, but when the oil cylinders are used, pressure errors are caused due to oil pipe resistance, temperature change, system faults and the like, so that the clamping force on the planet carrier is uneven, the quality of products is affected, the size deviation of workpieces occurs, even the workpieces are damaged, the machining efficiency and the quality of products are seriously affected, and economic losses are caused.
Disclosure of Invention
The invention aims to provide an automatic clamping device for planet carrier machining, which at least solves the problems that the use of the device is limited and the quality and the machining efficiency of products are affected in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: an automatic clamping device for planet carrier processing, comprising: the hydraulic cylinder is arranged in the middle of the bottom end of the inner cavity of the base; the piston cylinder is arranged at the top end of the hydraulic cylinder; one end of the first hydraulic pipe is arranged at the bottom end of the inner cavity of the piston cylinder; one end of the second hydraulic pipe is arranged at the top end of the inner cavity of the hydraulic cylinder, and the other end of the first hydraulic pipe is communicated with the other end of the second hydraulic pipe; one end of the third hydraulic pipe is arranged at the top end of the inner cavity of the piston cylinder; one end of the fourth hydraulic pipe is arranged at the bottom end of the inner cavity of the hydraulic cylinder, and the other end of the fourth hydraulic pipe is communicated with the other end of the third hydraulic pipe; the left end of the fifth hydraulic pipe is communicated with the inner cavity of the left end of the fourth hydraulic pipe, and the right end of the fifth hydraulic pipe is communicated with the right end of the fourth hydraulic pipe and the right end of the third hydraulic pipe; the fixing mechanism is arranged at the top end of the base; the piston is slidably matched and inserted into the top end of the inner cavity of the piston cylinder, is positioned below the third hydraulic pipe and is positioned above the first hydraulic pipe; the bottom end of the piston rod is arranged in the middle of the top end of the piston, and the top end of the piston rod can slidably extend out of the top end of the piston cylinder; the pushing plate is arranged at the top end of the piston cylinder, the piston rod can slide to extend out of the top end of the pushing plate, the pushing plate is positioned above the base, and four sliding grooves are formed in the top end of the pushing plate at equal intervals along the circumferential direction; the two ends of the guide rod are arranged at the inner side and the outer side of the inner cavity of the chute; the number of the connecting rods is several, the connecting rods are divided into four groups, one ends of the four groups of connecting rods are respectively and equidistantly arranged on the outer wall of the piston rod in the circumferential direction from top to bottom in a rotatable manner through the pin shafts, and the four groups of connecting rods correspond to the positions of the four sliding grooves respectively; the sliding block is slidably matched and inserted into the inner side of the inner cavity of the chute, and is slidably sleeved on the outer wall of the guide rod; the middle parts of the bottom ends of the extrusion sheets are arranged at the top ends of the sliding blocks, and the other ends of the four groups of connecting rods are respectively rotatably arranged at the inner sides of the four extrusion sheets through pin shafts; the planet carrier is placed on the top of push pedal, and the inner chamber of planet carrier cup joints in the outer wall of four extrusion pieces.
Preferably, the outer wall of the fourth hydraulic pipe and the outer wall of the fifth hydraulic pipe are both provided with pressure check valves, and the two pressure check valves are arranged in opposite directions.
Preferably, in order to shelter from the location to the locating rack, fixed establishment includes: the positioning frames are arranged at the top ends of the bases, the outer walls of the positioning frames provided with a plurality of extrusion positioning frames at equal intervals along the circumferential direction are arranged at the top ends of the positioning frames at equal intervals, and the plurality of moving grooves are communicated with the inner cavities of the positioning frames; the number of the limiting rods is several, the top ends of the limiting rods are respectively arranged at the bottom end of the positioning frame at equal intervals along the circumferential direction, the bottom ends of the limiting rods are arranged at the top end of the base, and the push plate is slidably sleeved on the outer wall of the limiting rods; the number of the rotating rods is a plurality, and the bottom ends of the rotating rods are respectively and circumferentially equidistant and rotatably arranged at the bottom end of the inner cavity of the positioning frame through bearings; the gear is sleeved on the outer wall of the rotary rod and locked by the jackscrew; the rack baffle is slidably matched and inserted into the inner cavity of the moving groove, and the rack baffle is meshed with the gear.
Preferably, in order to cause the rack bar to move, the fixing mechanism further includes: the spring is embedded in the inner cavity of the extrusion groove, and the bottom end of the spring is clamped at the bottom end of the inner cavity of the extrusion groove; the bottom end of the clamping ball is embedded in the inner cavity of the extrusion groove, and the top end of the spring is clamped on the outer wall of the clamping ball; the gear ring is rotatably arranged in the inner cavity of the positioning frame through the bearing, the gear ring is meshed with the gear, a plurality of clamping grooves are formed in the bottom end of the gear ring at equal intervals along the circumferential direction, and the top ends of the clamping balls are inserted into the inner cavity of the clamping grooves in a matching mode.
Preferably, when the toothed ring rotates, the clamping balls are extruded to move into the inner cavity of the extrusion groove through the inner wall of the clamping groove, and the extrusion springs are elastically deformed, so that the clamping balls can be caused to be separated from the inner cavity of the clamping groove, and meanwhile, the gear can be caused to rotate, and the rack baffle is caused to synchronously move by the rotation of the gear.
Preferably, the inner diameter of the top end of the inner cavity of the base is larger than the outer diameter of the piston cylinder and smaller than the diameter of the push plate.
Preferably, the length of the clamping ball inserted into the inner cavity of the clamping groove is smaller than the radius of the clamping ball.
Preferably, the rack baffle extends beyond the outer wall of the positioning frame by a length greater than the distance between the inner side of the rack baffle and the outer wall of the extrusion piece.
The invention provides an automatic clamping device for planet carrier processing, which has the beneficial effects that:
1. According to the invention, the planet carrier is supported by the pushing plate, hydraulic oil is conveyed to the hydraulic cylinder and the piston cylinder through the first hydraulic pipe, the second hydraulic pipe, the third hydraulic pipe, the fourth hydraulic pipe and the fifth hydraulic pipe, so that the hydraulic cylinder and the piston rod are driven to move, the planet carrier is driven to be positioned by the squeezing plate, and the planet carrier is driven to move by the pushing plate.
2. According to the invention, the piston is driven to move downwards by conveying hydraulic oil to the top end of the inner cavity of the piston cylinder through the third hydraulic pipe, so that the piston is driven to move outwards by pushing the extruding sheet through the connecting rod, the inner wall of the planet carrier is extruded by the extruding sheet to be used for centering and positioning the planet carrier, and the hydraulic oil is conveyed to the bottom end of the hydraulic cylinder through the fourth hydraulic pipe, so that the hydraulic cylinder is driven to push the piston cylinder to drive the push plate to move upwards, the planet carrier is driven to move upwards by the push plate, and the sequence of conveying the hydraulic oil by the third hydraulic pipe and the fourth hydraulic pipe is controlled by the pressure one-way valve.
3. According to the invention, the rack baffle can be driven to move through the gear through rotating the toothed ring until the rack baffle moves to a proper position, the position of the toothed ring can be fixed by utilizing the cooperation between the clamping ball and the clamping groove, so that the planet carrier is shielded by utilizing the bottom end of the rack baffle, and further, the planet carrier can be clamped and fixed by utilizing the cooperation between the rack baffle and the push plate, and further, the fixing effect on the planet carrier is further enhanced.
4. The device can adapt to the planetary carriers with different sizes and shapes, the application range of the device is increased, so that the flexibility and the universality of the device are improved, the device can effectively avoid the phenomenon that the traditional device is uneven in clamping force and causes position deviation or instability in the clamping process due to pressure errors in the clamping process, and further the processing precision and the processing efficiency are increased, and the product quality is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a front cross-sectional view of the present invention.
Fig. 4 is an exploded view of the securing mechanism.
Fig. 5 is a schematic structural diagram of the card slot.
Fig. 6 is a schematic structural view of the connecting rod.
Fig. 7 is a schematic view of the structure of the piston cylinder inner cavity.
Fig. 8 is an enlarged view at a of fig. 2.
Fig. 9 is an enlarged view at B of fig. 3.
Fig. 10 is an enlarged view at C of fig. 4.
Fig. 11 is an enlarged view of D of fig. 6.
Fig. 12 is an enlarged view at E of fig. 2.
In the figure: 1. a base; 2. a hydraulic cylinder; 3. a piston cylinder; 4. a first hydraulic pipe; 5. a second hydraulic pipe; 6. a third hydraulic pipe; 7. a fourth hydraulic pipe; 8. a fifth hydraulic pipe; 9. a fixing mechanism; 91. a positioning frame; 92. a moving groove; 93. an extrusion groove; 94. a spring; 95. ball clamping; 96. a limit rod; 97. a rotating rod; 98. a gear; 99. a rack baffle; 910. a toothed ring; 911. a clamping groove; 10. a pressure check valve; 11. a piston; 12. a piston rod; 13. a push plate; 14. a chute; 15. a guide rod; 16. a connecting rod; 17. a slide block; 18. extruding the sheet; 19. a planet carrier.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-12, the present invention provides a technical solution for an automatic clamping device for machining a planet carrier, including: the base 1, the hydraulic cylinder 2, the piston cylinder 3, the first hydraulic pipe 4, the second hydraulic pipe 5, the third hydraulic pipe 6, the fourth hydraulic pipe 7, the fifth hydraulic pipe 8, the fixing mechanism 9, the pressure one-way valve 10, the piston 11, the piston rod 12, the push plate 13, the chute 14, the guide rod 15, the connecting rod 16, the slide block 17, the extrusion piece 18 and the planet carrier 19, the hydraulic cylinder 2 is arranged in the middle of the bottom end of the inner cavity of the base 1, the hydraulic cylinder 2 is in the prior art, the hydraulic cylinder 2 is not repeated herein for pushing the piston cylinder 3 to move up and down, The piston cylinder 3 is arranged at the top end of the hydraulic cylinder 2, the piston rod 12 can be driven to move up and down by conveying pressure oil into the inner cavity of the piston cylinder 3, the inner diameter of the top end of the inner cavity of the base 1 is larger than the outer diameter of the piston cylinder 3, the piston cylinder 3 can move out of the inner cavity of the base 1, one end of the first hydraulic pipe 4 is arranged at the bottom end of the inner cavity of the piston cylinder 3, one end of the second hydraulic pipe 5 is arranged at the top end of the inner cavity of the hydraulic cylinder 2, the other end of the first hydraulic pipe 4 is communicated with the other end of the second hydraulic pipe 5, one end of the third hydraulic pipe 6 is arranged at the top end of the inner cavity of the piston cylinder 3, one end of the fourth hydraulic pipe 7 is arranged at the bottom end of the inner cavity of the hydraulic cylinder 2, and the other end of the fourth hydraulic pipe 7 is communicated with the other end of the third hydraulic pipe 6, the left end of the fifth hydraulic pipe 8 is communicated with the inner cavity of the left end of the fourth hydraulic pipe 7, the right end of the fifth hydraulic pipe 8 is communicated with the right end of the fourth hydraulic pipe 7 and the right end of the third hydraulic pipe 6, the first hydraulic pipe 4 and the third hydraulic pipe 6 are used for conveying hydraulic oil for the piston cylinder 3, the second hydraulic pipe 5 and the fourth hydraulic pipe 7 are used for conveying hydraulic oil for the hydraulic cylinder 2, the fifth hydraulic pipe 8 is used for discharging hydraulic oil in the inner cavity of the hydraulic cylinder 2, the number of the pressure check valves 10 is two, the two pressure check valves 10 are respectively arranged on the outer walls of the fourth hydraulic pipe 7 and the fifth hydraulic pipe 8, the two pressure check valves 10 are arranged in opposite directions, the pressure check valves 10 are in the prior art, The pressure check valve 10 is used for controlling the flow sequence and the flow direction of hydraulic oil to the inner cavities of the piston cylinder 3 and the hydraulic cylinder 2, the fixing mechanism 9 is arranged at the top end of the base 1, the fixing mechanism 9 is used for clamping and fixing the planet carrier 19, the piston 11 is slidably matched and inserted at the top end of the inner cavity of the piston cylinder 3, the piston 11 is positioned below the third hydraulic pipe 6 and above the first hydraulic pipe 4, the piston 11 is the prior art, the piston 11 is not excessively described here, the piston 11 is used for driving the piston rod 12 to move, the bottom end of the piston rod 12 is arranged at the middle of the top end of the piston 11, the top end of the piston rod 12 slidably extends out of the top end of the piston cylinder 3, The piston rod 12 moves up and down and the connecting rod is matched to drive the extrusion piece 18 to move, the push plate 13 is arranged at the top end of the piston cylinder 3, the piston rod 12 slidably extends out of the top end of the push plate 13, the push plate 13 is positioned above the base 1, four sliding grooves 14 are formed in the top end of the push plate 13 at equal intervals along the circumferential direction, the planet carrier 19 can be supported by the push plate 13, the inner diameter of the top end of the inner cavity of the base 1 is smaller than the diameter of the push plate 13, the push plate 13 is prevented from falling into the inner cavity of the base 1, the two ends of the guide rod 15 are arranged at the inner side and the outer side of the inner cavity of the sliding groove 14, the number of the connecting rods 16 is a plurality of, the connecting rods 16 are divided into four groups, one ends of the four groups of the connecting rods 16 are respectively arranged on the outer wall of the piston rod 12 at equal intervals along the circumferential direction from top to bottom through pin shafts, The four groups of connecting rods 16 are respectively corresponding to the positions of the four sliding grooves 14, the sliding block 17 is slidably matched and inserted into the inner side of the inner cavity of the sliding groove 14, the sliding block 17 is slidably sleeved on the outer wall of the guide rod 15, the sliding block 17 and the guide rod 15 are matched to limit the extrusion piece 18, the middle part of the bottom end of the extrusion piece 18 is arranged at the top end of the sliding block 17, the other ends of the four groups of connecting rods 16 are respectively rotatably arranged on the inner sides of the four extrusion pieces 18 through pin shafts, the extrusion piece 18 is used for positioning the planet carrier 19, the planet carrier 19 is arranged at the top end of the push plate 13, the inner cavity of the planet carrier 19 is sleeved on the outer walls of the four extrusion pieces 18, the planet carrier 19 is of the prior art and will not be described in detail here.
Preferably, the fixing mechanism 9 further includes: the positioning frame 91, the moving groove 92, the extrusion groove 93, the spring 94, the clamping ball 95, the limiting rod 96, the rotary rod 97, the gear 98, the rack baffle 99, the toothed ring 910 and the clamping groove 911, the positioning frame 91 is arranged at the top end of the base 1, a plurality of extrusion grooves 93 are circumferentially equidistantly arranged at the top end of the positioning frame 91, a plurality of moving grooves 92 are circumferentially equidistant arranged at the outer wall of the positioning frame 91, the moving groove 92 is communicated with the inner cavity of the positioning frame 91, the spring 94 is embedded in the inner cavity of the extrusion groove 93, the bottom end of the spring 94 is clamped at the bottom end of the inner cavity of the extrusion groove 93, the spring 94 is a rotary spring, the spring 94 is extruded or stretched by external force and is elastically deformed, the external force is removed and restored to an initial state, the spring 94 is used for extruding the clamping ball 95 into the inner cavity of the clamping groove 911, the bottom end of the clamping ball 95 is embedded in the inner cavity of the extrusion groove 93, the top end of the spring 94 is clamped at the outer wall of the clamping ball 95, the clamping balls 95 and the clamping grooves 911 are matched to position the toothed ring 910, the number of the limiting rods 96 is a plurality, the top ends of the limiting rods 96 are respectively arranged at the bottom end of the positioning frame 91 in the circumferential equidistant manner, the bottom ends of the limiting rods 96 are arranged at the top end of the base 1, the push plate 13 is slidably sleeved on the outer wall of the limiting rods 96, the limiting rods 96 are used for limiting the push plate 13, the number of the rotating rods 97 is a plurality, the bottom ends of the rotating rods 97 are respectively arranged at the bottom end of the inner cavity of the positioning frame 91 in the circumferential equidistant manner through bearings in the rotatable manner, the gears 98 are sleeved on the outer wall of the rotating rods 97 and are locked through jackscrews, the gears 98 are used for linking the toothed ring 910 and the rack baffle 99, the rack baffle 99 is slidably matched and inserted into the inner cavity of the moving groove 92, the rack baffle 99 is meshed with the gears 98, the planet carrier 19 can be shielded by the rack baffle 99, therefore, the planet carrier 19 can be clamped and fixed by utilizing the cooperation between the push plate 13 and the rack baffle 99, a rubber pad is arranged at the bottom end of the rack baffle 99, the rack baffle 99 is prevented from damaging the planet carrier 19, the length of the rack baffle 99 extending out of the outer wall of the positioning frame 91 is longer than the distance from the inner side of the rack baffle to the outer wall of the extrusion piece 18, the rack baffle 99 is prevented from moving out of the inner cavity of the moving groove 92, the toothed ring 910 is rotatably arranged in the inner cavity of the positioning frame 91 through a bearing, the toothed ring 910 is meshed with the gear 98, a plurality of clamping grooves 911 are formed in the bottom end of the toothed ring 910 at equal intervals along the circumferential direction, the top ends of the clamping balls 95 are matched and inserted into the inner cavity of the clamping grooves 911, the toothed ring 910 can be positioned by utilizing the cooperation between the clamping balls 95 and the clamping grooves 911, and the length of the clamping balls 95 inserted into the inner cavity of the clamping grooves 911 is smaller than the radius of the clamping grooves 911, so that smooth rotation of the toothed ring 910 is ensured.
The detailed connection means are known in the art, and the following mainly describes the working principle and process, and the specific work is as follows.
When in use, the outer end of the third hydraulic pipe 6 and the outer end of the first hydraulic pipe 4 are connected with an external oil pump, the planet carrier 19 is placed at the top end of the push plate 13, the piston rod 12 and the extrusion piece 18 are inserted into the central hole of the planet carrier 19, the toothed ring 910 is rotated anticlockwise according to the diameter of the planet carrier 19, the toothed ring 910 rotates to extrude the clamping ball 95 into the inner cavity of the extrusion groove 93 by utilizing the inner wall of the clamping groove 911 to move, the extrusion spring 94 is elastically deformed until the clamping ball 95 is completely separated from the inner cavity of the clamping groove 911, the toothed ring 910 rotates anticlockwise to drive the gear 98 to rotate anticlockwise, the gear 98 rotates anticlockwise to drive the rack baffle 99 to synchronously move inwards, Until the rack baffle 99 moves to a proper position, at this time, the inner end of the rack baffle 99 is positioned above the planet carrier 19, under the action of the elasticity of the spring 94, the clamping ball 95 can be pushed to move into the inner cavity of the clamping groove 911 corresponding to the current position of the rack baffle, so that the position of the toothed ring 910 can be fixed, hydraulic oil is conveyed to the top end of the inner cavity of the piston cylinder 3 through the third hydraulic pipe 6, as the outer walls of the fourth hydraulic pipe 7 and the fifth hydraulic pipe 8 are respectively provided with the pressure one-way valve 10, the two pressure one-way valves 10 are oppositely arranged, when hydraulic oil is conveyed to the top end of the inner cavity of the piston cylinder 3 through the third hydraulic pipe 6, hydraulic oil cannot flow into the bottom end of the inner cavity of the hydraulic cylinder 2 through the fourth hydraulic pipe 7 and the fifth hydraulic pipe 8, The third hydraulic pipe 6 conveys hydraulic oil to the top end of the inner cavity of the piston cylinder 3 to enable the piston 11 to move downwards, so that the hydraulic oil in the bottom end of the inner cavity of the piston cylinder 3 is discharged through the first hydraulic pipe 4, the piston 11 moves downwards to drive the piston rod 12 to move downwards, the piston rod 12 moves downwards to drive the inner end of the connecting rod 16 to move downwards, the outer end of the connecting rod 16 is utilized to push the extrusion piece 18 to move outwards, meanwhile, the sliding block 17 moves outwards in the inner cavity of the sliding groove 14 until the extrusion piece 18 moves outwards to be in contact with the inner wall of the planet carrier 19, the planet carrier 19 can be centered, the extrusion piece 18 is shielded by the inner wall of the planet carrier 19, so that the extrusion sheet 18 cannot continue to move outwards, the piston rod 12 cannot continue to move downwards, at the moment, the pressure check valve 10 positioned on the outer wall of the fourth hydraulic pipe 7 can be opened under the action of pressure by continuing to convey hydraulic oil into the inner cavity of the third hydraulic pipe 6, so that the hydraulic oil is conveyed to the bottom end of the inner cavity of the hydraulic cylinder 2 through the inner cavity of the fourth hydraulic pipe 7, because the two pressure check valves 10 are oppositely arranged, the hydraulic oil cannot flow to the inner cavity of the hydraulic cylinder 2 through the inner cavity of the fifth hydraulic pipe 8, the hydraulic oil is conveyed to the bottom end of the inner cavity of the hydraulic cylinder 2 through the inner cavity of the fourth hydraulic pipe 7, so that the hydraulic rod of the hydraulic cylinder 2 can be driven to push the piston cylinder 3 and the push plate 13 to move upwards, Simultaneously, the hydraulic oil at the top end of the inner cavity of the hydraulic cylinder 2 is driven to be discharged out of the inner cavity of the hydraulic cylinder 2 through the second hydraulic pipe 5, the hydraulic cylinder 2 pushes the push plate 13 to move upwards to drive the planet carrier 19 to move upwards until the top end of the planet carrier 19 is contacted with the bottom end of the rack baffle 99, the planet carrier 19 can be extruded and fixed by the push plate 13 and the rack baffle 99, the planet carrier 19 can be processed, after the processing of the planet carrier 19 is finished, the hydraulic oil is conveyed to the bottom end of the inner cavity of the piston cylinder 3 by the first hydraulic pipe 4, the hydraulic oil at the top end of the inner cavity of the piston cylinder 3 is driven to be discharged out of the inner cavity of the piston cylinder 3 through the third hydraulic pipe 6, and then the piston rod 12 is driven to move upwards, the connecting rod 16 is driven to pull the extrusion piece 18 to move inwards to the initial position, the centering positioning of the planet carrier 19 is further relieved, the second hydraulic pipe 5 conveys hydraulic oil to the top end of the inner cavity of the hydraulic cylinder 2, the hydraulic oil at the bottom end of the hydraulic cylinder 2 is driven to be discharged out of the inner cavity of the hydraulic cylinder 2 through the fifth hydraulic pipe 8, the hydraulic cylinder 2 is used for driving the piston cylinder 3 and the push plate 13 to move downwards to the initial position, so that the extrusion fixation of the planet carrier 19 can be relieved, the toothed ring 910 is rotated in the opposite direction, the rack baffle 99 can be driven to move outwards to the initial position, and then the planet carrier 19 can be taken out of the inner cavity of the positioning carrier 91, Thereby accomplish the processing of planet carrier 19, this device can adapt to the planet carrier 19 of different sizes and shapes, has increased the application range of this device to improved flexibility and the commonality of device, and this device can effectively avoid traditional device in the centre gripping in-process, causes the uneven position deviation or the unstable phenomenon that lead to the centre gripping in-process to lead to because of pressure error causes the clamping force, and then has increased machining precision and machining efficiency, has improved product quality.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An automatic clamping device for machining a planet carrier, comprising:
A base (1);
the hydraulic cylinder (2) is arranged in the middle of the bottom end of the inner cavity of the base (1);
the piston cylinder (3), the said piston cylinder (3) is set up in the top of the hydraulic cylinder (2);
The first hydraulic pipe (4), one end of the first hydraulic pipe (4) is arranged at the bottom end of the inner cavity of the piston cylinder (3);
One end of the second hydraulic pipe (5) is arranged at the top end of the inner cavity of the hydraulic cylinder (2), and the other end of the first hydraulic pipe (4) is communicated with the other end of the second hydraulic pipe (5);
one end of the third hydraulic pipe (6) is arranged at the top end of the inner cavity of the piston cylinder (3);
One end of the fourth hydraulic pipe (7) is arranged at the bottom end of the inner cavity of the hydraulic cylinder (2), and the other end of the fourth hydraulic pipe (7) is communicated with the other end of the third hydraulic pipe (6);
the left end of the fifth hydraulic pipe (8) is communicated with the inner cavity of the left end of the fourth hydraulic pipe (7), and the right end of the fifth hydraulic pipe (8) is communicated with the right end of the fourth hydraulic pipe (7) and the right end of the third hydraulic pipe (6);
the fixing mechanism (9) is arranged at the top end of the base (1);
The piston (11) is slidably and adaptively inserted into the top end of the inner cavity of the piston cylinder (3), and the piston (11) is positioned below the third hydraulic pipe (6) and above the first hydraulic pipe (4);
the bottom end of the piston rod (12) is arranged in the middle of the top end of the piston (11), and the top end of the piston rod (12) slidably extends out of the top end of the piston cylinder (3);
The pushing plate (13), the pushing plate (13) is arranged at the top end of the piston cylinder (3), the piston rod (12) slidably extends out of the top end of the pushing plate (13), the pushing plate (13) is positioned above the base (1), and four sliding grooves (14) are formed in the top end of the pushing plate (13) at equal intervals along the circumferential direction;
the two ends of the guide rod (15) are arranged at the inner side and the outer side of the inner cavity of the chute (14);
The number of the connecting rods (16) is several, the connecting rods (16) are divided into four groups, one ends of the four groups of connecting rods (16) are respectively and equidistantly arranged on the outer wall of the piston rod (12) from top to bottom along the circumferential direction in a rotatable mode through pin shafts, and the four groups of connecting rods (16) correspond to the positions of the four sliding grooves (14) respectively;
the sliding block (17) is slidably matched and inserted into the inner side of the inner cavity of the sliding groove (14), and the sliding block (17) is slidably sleeved on the outer wall of the guide rod (15);
The middle part of the bottom end of the extrusion sheet (18) is arranged at the top end of the sliding block (17), and the other ends of the four groups of connecting rods (16) are respectively rotatably arranged at the inner sides of the four extrusion sheets (18) through pin shafts;
The planet carrier (19), planet carrier (19) are placed on the top of push pedal (13), the inner chamber of planet carrier (19) cup joints in the outer wall of four extrusion piece (18).
2. An automatic clamping device for planet carrier processing according to claim 1, characterized in that: the outer wall of the fourth hydraulic pipe (7) and the outer wall of the fifth hydraulic pipe (8) are respectively provided with a pressure one-way valve (10), and the two pressure one-way valves (10) are arranged in opposite directions.
3. An automatic clamping device for planet carrier processing according to claim 2, characterized in that: the fixing mechanism (9) comprises:
The positioning frame (91), the positioning frame (91) is arranged at the top end of the base (1), a plurality of extrusion grooves (93) are formed in the top end of the positioning frame (91) at equal intervals along the circumferential direction, a plurality of moving grooves (92) are formed in the outer wall of the positioning frame (91) at equal intervals along the circumferential direction, and the moving grooves (92) are communicated with the inner cavity of the positioning frame (91);
the limiting rods (96), the number of the limiting rods (96) is a plurality, the top ends of the limiting rods (96) are respectively arranged at the bottom end of the positioning frame (91) at equal intervals along the circumferential direction, the bottom end of the limiting rod (96) is arranged at the top end of the base (1), and the push plate (13) is sleeved on the outer wall of the limiting rods (96) in a sliding manner;
The rotating rods (97) are arranged in a plurality, and the bottom ends of the rotating rods (97) are respectively arranged at the bottom ends of the inner cavity of the positioning frame (91) in a rotatable mode through bearings at equal intervals along the circumferential direction;
the gear (98) is sleeved on the outer wall of the rotary rod (97) and locked through a jackscrew;
the rack baffle plate (99), the slidable looks adaptation grafting of rack baffle plate (99) is in the inner chamber of removal groove (92), rack baffle plate (99) and gear (98) mesh mutually.
4. A machine automatic gripping device for planet carriers according to claim 3, characterized in that: the fixing mechanism (9) further comprises:
The spring (94) is embedded in the inner cavity of the extrusion groove (93), and the bottom end of the spring (94) is clamped at the bottom end of the inner cavity of the extrusion groove (93);
the bottom end of the clamping ball (95) is embedded in the inner cavity of the extrusion groove (93), and the top end of the spring (94) is clamped on the outer wall of the clamping ball (95);
The gear ring (910), the gear ring (910) is rotationally set up in the inner chamber of locating rack (91) through the bearing, gear ring (910) and gear (98) mesh mutually, a plurality of draw-in grooves (911) have been seted up along circumference equidistance to the bottom of gear ring (910), the top looks adaptation of card ball (95) is pegged graft in the inner chamber of draw-in groove (911).
5. The automatic clamping device for machining a planet carrier according to claim 4, wherein: when the toothed ring (910) rotates, the clamping balls (95) are extruded to move into the inner cavity of the extrusion groove (93) through the inner wall of the clamping groove (911), the extrusion springs (94) are elastically deformed, the clamping balls (95) can be caused to be separated from the inner cavity of the clamping groove (911), meanwhile, the gear (98) can be caused to rotate, and the gear (98) rotates to cause the rack baffle (99) to synchronously move.
6. The automatic clamping device for machining a planet carrier according to claim 5, wherein: the inner diameter of the top end of the inner cavity of the base (1) is larger than the outer diameter of the piston cylinder (3) and smaller than the diameter of the push plate (13).
7. The automatic clamping device for machining a planet carrier according to claim 6, wherein: the length of the clamping ball (95) inserted into the inner cavity of the clamping groove (911) is smaller than the radius of the clamping ball.
8. The automatic clamping device for machining a planet carrier according to claim 7, wherein: the length of the rack baffle plate (99) extending out of the outer wall of the positioning frame (91) is longer than the distance between the inner side of the rack baffle plate and the outer wall of the extrusion piece (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410349566.9A CN117943859B (en) | 2024-03-26 | 2024-03-26 | Be used for planet carrier processing self-holding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410349566.9A CN117943859B (en) | 2024-03-26 | 2024-03-26 | Be used for planet carrier processing self-holding device |
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| CN117943859B true CN117943859B (en) | 2024-07-16 |
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| CN113414609A (en) * | 2021-05-07 | 2021-09-21 | 山东润通齿轮集团有限公司 | Clamping mechanism and clamping method for planet carrier machining center |
| CN113465919A (en) * | 2021-06-21 | 2021-10-01 | 江苏行星重载齿轮箱有限公司 | Hydraulic drive planet carrier static test platform |
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| ES317539A1 (en) * | 1965-09-17 | 1966-03-16 | Sagarduy Doistua Pedro | Improvements in or relating to Chucks for Securing Workpieces in Machine Tools |
| KR100211744B1 (en) * | 1997-03-12 | 1999-08-02 | 김기현 | Automatic universal chuck |
| JP2007190600A (en) * | 2006-01-20 | 2007-08-02 | Shin Caterpillar Mitsubishi Ltd | Jig device |
| CN209774077U (en) * | 2019-01-29 | 2019-12-13 | 山推工程机械股份有限公司 | Planet carrier inner hole machining and positioning device |
| CN211277501U (en) * | 2019-09-30 | 2020-08-18 | 天津天海同步科技有限公司 | Planet carrier milling finish machining clamp |
| CN113477559A (en) * | 2021-07-02 | 2021-10-08 | 重庆冰柠智能科技有限公司 | Can carry out nonstandard flange processingequipment that detects to flange draw-in groove |
| CN218696332U (en) * | 2022-07-04 | 2023-03-24 | 长春市美科汽车零部件有限公司 | Positioning tool for machining of differential shell accessories |
| CN115570479A (en) * | 2022-11-22 | 2023-01-06 | 泰州市贝斯特精铸机械有限公司 | Adjustable positioning tool convenient for machining of planet carrier |
| CN117086347A (en) * | 2023-08-31 | 2023-11-21 | 沈阳理工大学 | Special fixture for turning heterogeneous revolving body thin-wall part and precision machining method |
| CN117359358B (en) * | 2023-12-04 | 2024-02-06 | 常州市曼多林精密机械科技股份有限公司 | Multi-station oil pressure combined clamp device for machining upper shaft of planetary reducer |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414609A (en) * | 2021-05-07 | 2021-09-21 | 山东润通齿轮集团有限公司 | Clamping mechanism and clamping method for planet carrier machining center |
| CN113465919A (en) * | 2021-06-21 | 2021-10-01 | 江苏行星重载齿轮箱有限公司 | Hydraulic drive planet carrier static test platform |
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