CN114523482B - Light instantaneous impact-resistant push type operation tool storage platform - Google Patents
Light instantaneous impact-resistant push type operation tool storage platform Download PDFInfo
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- CN114523482B CN114523482B CN202210246602.XA CN202210246602A CN114523482B CN 114523482 B CN114523482 B CN 114523482B CN 202210246602 A CN202210246602 A CN 202210246602A CN 114523482 B CN114523482 B CN 114523482B
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- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 2
- 239000013585 weight reducing agent Substances 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0091—Shock absorbers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a light instant impact-resistant push type operation tool storage platform, and belongs to the technical field of space robots. The problem that the existing space on-orbit operation tool storage platform is low in rigidity of an opening and closing mechanism and poor in impact load resistance capability of a cover plate and is easy to break away tools under the condition that multiple tools are arranged side by side is solved. The device comprises an opening and closing driving mechanism, a tripod type anti-impact cover plate mechanism, a tool bracket and a spring buffer mechanism, and has the capability of actively and passively resisting the impact of a tool, and in order to reduce the impact load momentum, the passive spring buffer mechanism is designed on the cover plate, so that the instantaneous impact force is effectively reduced; the cover plate opening and closing driving mechanism is in a mode of combining a small driving motor with a large reduction ratio harmonic reducer, so that the passive shock resistance of the opening and closing mechanism is improved; under the impact action, multiple tools distributed in parallel can generate corresponding impact force on the cover plate to enable the cover plate to overturn, so that the triangular bracket type anti-impact cover plate mechanism is designed, deformation of the cover plate is effectively resisted, and tools are prevented from escaping.
Description
Technical Field
The invention belongs to the technical field of space robots, and particularly relates to a light instant impact-resistant push type operation tool storage platform.
Background
With the development of technology, the task to be completed by the space on-orbit mechanical arm is increasingly complex, and the analysis of the current space robot shows that different operation tools are equipped in different countries through a standard interface to complete different work tasks, so that an operation tool storage platform suitable for taking and placing the operation tools of the space mechanical arm becomes an indispensable important research object. The invention designs a light instant impact-resistant push type operation tool storage platform, which can solve the problems of effective storage and instant three-dimensional impact resistance of various types of tail end operation tools and realize the functions of locking and releasing the tools and preventing the tools from escaping, by considering the conditions of instant large load condition of launching lift and the condition that the tools in the operation tool storage platform are easily damaged or even deviate from due to the vacuum large temperature difference weightlessness environment in the space.
Disclosure of Invention
In view of the above, the invention aims to provide a light instant impact-resistant push type operation tool storage platform, which solves the problems that the existing space on-orbit operation tool storage platform has a complex structure, low rigidity of an opening and closing mechanism, easy deformation, poor impact load resistance of a cover plate, easy tool overturning and instability of the on-orbit operation tool storage platform, and small pressing moment of the cover plate, and easy tool falling-out.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a light instantaneous impact-resistant push-type operating tool storage platform comprises an opening and closing driving mechanism, a triangular bracket type impact-resistant cover plate mechanism, a tool bracket and a spring buffer mechanism;
the triangular bracket type anti-impact cover plate mechanism comprises a main bracket, two auxiliary brackets and a cover plate, wherein the auxiliary brackets and the main bracket are arranged in a triangular shape, the cover plate of the triangular bracket type anti-impact cover plate mechanism adopts a stiffening beam frame type structure, the cover plate is matched with a tool bracket, and a space for accommodating a tool supporting beam is formed between the cover plate and the tool bracket; the multiple operation tools are arranged in parallel in the square bin of the tool bracket, reinforcing beams are respectively arranged at the fixedly connected positions of the cover plate, the main bracket and the auxiliary bracket, and a spring buffer mechanism is arranged at the contact position of the multiple operation tools and the cover plate;
the opening and closing driving mechanism comprises a stepping motor assembly and a harmonic reducer assembly, wherein the stepping motor and the harmonic reducer assembly of the stepping motor assembly are fixedly arranged on a harmonic mounting seat, a harmonic output disc of the harmonic reducer assembly is fixedly connected with one end of a main support, the other end of the main support is connected with a cover plate, one end of two auxiliary supports is connected with the main support, and the other end of the auxiliary supports is fixedly connected with the cover plate;
the spring buffer mechanism comprises a first spring buffer assembly, a second spring buffer assembly and a third spring buffer assembly, the three spring buffer assemblies are sequentially arranged on the lower end face of the cover plate, the three spring buffer assemblies are identical in structure and comprise four compression springs, a spring pressing plate, two pressing mechanism sliding pins and two pre-tightening bolts, the four compression springs are arranged between the spring pressing plate and the cover plate in two groups, one end of each compression spring is in contact with the cover plate of the operating tool storage platform, the other end of each compression spring is arranged in a blind hole mounting groove of the corresponding spring pressing plate, the first spring buffer assembly and the third spring buffer assembly are connected with a central threaded hole of the corresponding pressing mechanism sliding pin through a pre-tightening bolt through a cover plate assembly through hole, and the second spring buffer assembly is connected with the central threaded hole of the corresponding pressing mechanism sliding pin through a cover plate threaded hole;
when a plurality of operating tools distributed in parallel in a straight line are subjected to impact load, a stepping motor in the opening and closing driving mechanism operates to output active pressing force through the harmonic reducer assembly, and the plurality of operating tools firstly contact with a spring buffer mechanism on the cover plate to transmit impact to a reinforcing beam of the cover plate in the triangular bracket type anti-impact cover plate mechanism;
when a plurality of operating tools are taken and placed, the opening and closing driving mechanism operates, and the cover plate is driven to do opening and closing movement around the motor shaft through the triangular bracket type anti-impact cover plate mechanism, so that the operating tool storage platform is opened and closed, namely, the cover plate and the tool bracket are separated and closed.
Still further, step motor subassembly still includes motor line support, motor fastener, motor shaft, motor fixed disk, motor labyrinth seal, motor shaft sealed lid and wave generator lock nut, step motor passes through a plurality of bolt fixed connection on the motor fixed disk, and motor line support passes through bolt fixed connection at step motor afterbody, and motor fastener fixed mounting is in motor line support lower extreme, motor fixed disk outer fringe and harmonic reducer steel wheel outer fringe fixed connection are on the harmonic mount pad, and motor labyrinth seal passes through countersunk head screw and links firmly with the wave generator of harmonic reducer subassembly, and step motor's motor shaft passes through wave generator lock nut and flat key and is connected with the harmonic reducer subassembly, and the motor shaft sealed lid passes motor shaft and step motor through long screw and links firmly.
Still further, harmonic reducer subassembly still includes harmonic steel wheel, flexspline connecting piece, joint bearing subassembly, flexspline torque-increasing gasket, right side motor thermal control apron and the thermal control apron of left side motor, the wave generator passes through wave generator lock nut and plain key to be installed on the motor shaft, places torque-increasing gasket and links firmly between flexspline connecting piece and harmonic output dish through the bolt between flexspline, and the thermal control apron of right side motor and the thermal control apron of left side motor pass through the bolt fastening at the right-hand member face of harmonic mount pad.
Still further, joint bearing assembly includes two angular contact bearings, bearing outer ring packing ring, bearing inner ring retaining ring, bearing retainer ring and joint bearing outer ring seat, and two angular contact bearings install side by side between harmonic mount pad and joint bearing outer ring seat, and the bearing outer ring packing ring is installed to two bearings centre, and the bearing retainer ring passes through the bolt to be installed at joint bearing outer ring seat right-hand member face, contacts with the bearing outer lane, and bearing inner ring retaining ring outward flange contacts with right side angle contact bearing inner ring, links firmly on the harmonic mount pad through bolt and packing ring.
Still further, be provided with the L shape dog subassembly that presses the instrument usefulness in the nearly motor end inboard of apron, L shape dog subassembly includes L shape dog and fastening bolt, processes the screw thread through-hole at the long limit of L shape dog, passes the screw thread through-hole on the L shape dog through fastening bolt and is connected with the apron inside wall, when opening and shutting actuating mechanism presses the cover plate of a tripod type and prevents the impact cover plate mechanism and makes apron and tool carrier closure, the minor face bottom surface of L shape dog contacts with multiple operating tool.
Furthermore, the L-shaped stop block assemblies are arranged in four, and are symmetrically and fixedly arranged on the inner side wall of the cover plate, which is close to the motor end, in pairs.
Furthermore, the main support and the auxiliary support are connected with the long side of the cover plate.
Furthermore, the two auxiliary brackets are fixedly arranged on the main bracket in a staggered manner.
Furthermore, the other end of the main support is connected with the cover plate through the heat insulation pad by bolts, one ends of the two auxiliary supports are connected with the main support through bolts, and the other ends of the two auxiliary supports are fixedly connected with the cover plate through the heat insulation pad by bolts.
Furthermore, the spring pressing plate is of a strip-shaped structure, and a weight reducing groove is formed in the middle of the strip-shaped spring pressing plate; the cover plate is of a rectangular structure, and a plurality of weight-reducing openings are formed in the edge of the cover plate and the reinforcing beam.
Compared with the prior art, the light instant impact-resistant push type operation tool storage platform has the beneficial effects that:
1. the invention carries out targeted design on the storage modes of parallel distribution of various operation tools, the operation tool storage platform has compact structure, small volume, light weight, active and passive tool impact resistance, fewer parts forming the box body and convenient assembly among the parts, and the triangular design of the triangular bracket and the cover plate reinforcing beam greatly enhances the weight and rigidity of the box body, can bear larger acceleration and does not deform.
2. The invention adopts an eccentric rigid pressing mode, the opening and closing driving mechanism is designed into a combined mode of a small stepping motor and a large reduction ratio harmonic reducer to provide pressing moment, meanwhile, the passive shock resistance of the opening and closing mechanism is improved, and the tool overturning is prevented through the design of the triangular support and the anti-shock cover plate.
3. The invention adopts the spring buffering and rigid pressing mechanism to effectively prevent the tool from falling off or rigidly colliding with the cover plate due to instantaneous impact. The spring buffer mechanism is designed at the cover plate above the tool by utilizing the tension and compression springs and the compression sliding pins, when the tool bears impact load, the tool firstly contacts with the spring buffer mechanism, and the compression energy absorption of the springs is utilized, so that the impact contact time of the tool and the cover plate can be effectively prolonged, and the instantaneous impact force of the tool on the cover plate is reduced; the opening and closing driving mechanism and the triangular bracket type anti-impact cover plate mechanism jointly form a rigid pressing mechanism, so that larger pressing force can be provided, and the tool is prevented from overturning and rotating to cause instability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of a lightweight, instantaneous impact resistant, push-button tool storage platform (in a closed state) according to an embodiment of the present invention;
FIG. 2 is an exploded view of the structure of the opening and closing driving mechanism according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view at A-A of FIG. 1;
FIG. 4 is a cross-sectional view at B-B of FIG. 1;
FIG. 5 is a cross-sectional view of the spring cushioning mechanism;
fig. 6 is a schematic view of the overall structure of a lightweight, instantaneous impact resistant, push-button tool storage platform (in an open state) according to an embodiment of the present invention.
Reference numerals illustrate:
1. an opening and closing driving mechanism;
1-1, a stepping motor assembly; 1-1-1, a stepping motor; 1-1-2, a motor wire bracket; 1-1-3, a motor wire clamp; 1-1-4, a motor fixing disc; 1-1-5, a motor shaft; 1-1-6, a motor labyrinth sealing disk; 1-1-7, a motor shaft sealing cover; 1-1-8, a wave generator lock nut;
1-2, a harmonic reducer assembly; 1-2-1, a wave generator; 1-2-2, harmonic steel wheels; 1-2-3, harmonic wave installation seats; 1-2-4, a knuckle bearing assembly; 1-2-4-1, angular contact bearing; 1-2-4-2, bearing outer ring gasket; 1-2-4-3, a bearing inner ring retainer ring; 1-2-4-4, a bearing retainer ring; 1-2-4-5, an outer ring seat of the knuckle bearing; 1-2-5, a right motor thermal control cover plate; 1-2-6, a left motor thermal control cover plate; 1-2-7, a flexible gear; 1-2-8, a flexible gear connecting piece; 1-2-9, a flexible gear torque increasing gasket; 1-2-10, harmonic output disc;
2. a tripod type anti-impact cover plate mechanism; 2-1, a main support; 2-2, an auxiliary bracket; 2-3, cover plate;
3. a spring buffer mechanism; 3-1, a first spring buffer assembly; 3-2, a second spring buffer assembly; 3-3, a third spring buffer assembly; 3-1-1, a spring pressing plate; 3-1-2, pressing the sliding pin; 3-1-3, compressing the spring; 3-1-4, pre-tightening bolts;
4. a tool holder; 5. an L-shaped stop assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be noted that, in the case of no conflict, embodiments of the present invention and features of the embodiments may be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-6, a light instantaneous impact-resistant push-type operating tool storage platform comprises an opening and closing driving mechanism 1, a tripod type impact-resistant cover plate mechanism 2, a tool bracket 4 and a spring buffer mechanism 3;
the triangular bracket type anti-impact cover plate mechanism 2 comprises a main bracket 2-1, two auxiliary brackets 2-2 and a cover plate 2-3, wherein the auxiliary brackets 2-2 and the main bracket 2-1 are arranged in a triangular mode, the cover plate of the triangular bracket type anti-impact cover plate mechanism adopts a frame type structure of the reinforcing beam, a plurality of weight-reducing holes are formed in the edge and the reinforcing beam, the weight of the cover plate is effectively reduced, the rigidity of the cover plate is improved, the cover plate 2-3 of the triangular bracket type anti-impact cover plate mechanism 2 is matched with a tool bracket 4, a space for accommodating a tool supporting beam is formed between the cover plate 2-3 and the tool bracket 4, a plurality of operating tools are arranged in parallel in a square bin of the tool bracket 4, the cover plate 2-3, the main bracket 2-1 and the auxiliary brackets 2-2 are fixedly connected with each other, the triangular bracket and the cover plate reinforcing beam form a triangular structure together, a triangular local reinforced design is adopted in a tool storage area on two sides, and a slant reinforcing beam extends from the transverse long reinforcing beam in the middle of the cover plate 2-3 to a middle part to a middle frame, and a spring buffer mechanism is arranged at the positions of the plurality of operating tools and the cover plate 2-3;
the opening and closing driving mechanism 1 comprises a stepping motor assembly 1-1 and a harmonic reducer assembly 1-2, wherein the stepping motor 1-1-1 and the harmonic reducer assembly 1-2 of the stepping motor assembly 1-1 are fixedly arranged on a harmonic mounting seat 1-2-3, a harmonic output disc 1-2-10 of the harmonic reducer assembly 1-2 is fixedly connected with one end of a main support 2-1, the other end of the main support 2-1 is connected with a cover plate 2-3, one end of two auxiliary supports 2-2 is connected with the main support 2-1, and the other end of the two auxiliary supports 2-2 is fixedly connected with the cover plate 2-3; the method comprises the following steps: the other end of the main support 2-1 is connected with the cover plate 2-3 through a heat insulation pad by bolts, one end of each of the two auxiliary supports 2-2 is connected with the main support 2-1 through bolts, and the other ends of the two auxiliary supports 2-2 are fixedly connected with the cover plate 2-3 through the heat insulation pad by bolts;
the spring buffer mechanism 3 comprises a first spring buffer assembly 3-1, a second spring buffer assembly 3-2 and a third spring buffer assembly 3-3, wherein the three spring buffer assemblies are sequentially arranged on the lower end face of a cover plate with three tool bins, each spring buffer assembly corresponds to one tool bin, the three spring buffer assemblies have the same structure and comprise four compression springs 3-1-3, one spring press plate 3-1-1, two press mechanism sliding pins 3-1-2 and two pre-tightening bolts 3-1-4, the four compression springs 3-1-3 are arranged between the spring press plate 3-1 and the cover plate 2-3 in two groups, one end of each compression spring 3-1-3 contacts with the cover plate 2-3 of the operation tool storage platform, the other end of each compression spring buffer assembly is arranged in a blind hole installation groove of the spring press plate 3-1, the first spring buffer assembly 3-1 and the third spring buffer assembly 3-3 are connected with a central threaded hole of the press mechanism sliding pin through a cover plate assembly through a pre-tightening bolt 3-1-4, and the second spring 3-3 is connected with the central threaded hole of the press mechanism sliding pin through the press mechanism;
when a plurality of operation tools distributed in parallel in a straight line are subjected to impact load, impact forces with different magnitudes are generated due to different masses of the tools, a small-power stepping motor 1-1-1 in an opening and closing driving mechanism 1 operates and outputs active pressing force through a harmonic reducer assembly 1-2 with a large reduction ratio, the tools firstly contact a spring buffer mechanism on a cover plate 2-3, uneven impact is transmitted to a triangular bracket type anti-impact cover plate mechanism, and the triangular anti-overturning design of the cover plate effectively distributes the impact force borne by a single contact point and improves the integral rigidity of the cover plate, so that the deformation of the cover plate can be effectively resisted, and the tool is prevented from falling out;
when a plurality of operating tools are taken and placed, the opening and closing driving mechanism operates, the cover plate 2-3 is driven by the triangular bracket type anti-impact cover plate mechanism 2 to perform opening and closing movement around a motor shaft, separation and closing of the cover plate 2-3 and the tool bracket 4 are achieved, and opening and closing of the operating tool storage platform are achieved.
The stepping motor assembly 1-1 further comprises a motor wire support 1-1-2, a motor wire clamp 1-1-3, a motor shaft 1-1-5, a motor fixing disc 1-1-4, a motor labyrinth sealing disc 1-1-6, a motor shaft sealing cover 1-1-7 and a wave generator locking nut 1-1-8, wherein the stepping motor 1-1-1 is fixedly connected to the motor fixing disc 1-1-4 through a plurality of bolts, the motor wire support 1-1-2 is fixedly connected to the tail of the stepping motor 1-1 through bolts, the motor wire clamp 1-1-3 is fixedly arranged at the lower end of the motor wire support, the outer edge of the motor fixing disc 1-1-4 is fixedly connected to the harmonic reducer steel wheel 1-2-2, the outer edge of the motor labyrinth sealing ring 1-1-6 is fixedly connected to the wave generator through a countersunk screw, the motor shaft of the stepping motor 1-1-1 is fixedly connected to the harmonic reducer assembly 1-2 through the wave generator locking nut 1-8 and the flat key, and the motor shaft sealing cover 1-1-1-1 passes through the stepping motor 1-1-2 and the stepping motor 1-1-1-1.
The harmonic reducer assembly 1-2 further comprises a wave generator 1-2-1, a harmonic steel wheel 1-2-2, a flexible wheel 1-2-7, a flexible wheel connecting piece 1-2-8, a joint bearing assembly 1-2-4, a flexible wheel torque increasing gasket 1-2-9, a right motor thermal control cover plate 1-2-5 and a left motor thermal control cover plate 1-2-6, wherein the wave generator 1-2-1 is arranged on a motor shaft 1-1-5 through a wave generator locking nut 1-8 and a flat key, the harmonic steel wheel 1-2-2 is fixedly connected to the left end face of a harmonic mounting seat 1-2-3 through a bolt and a gasket, a torque increasing gasket 1-2-9 is arranged between the flexible wheel 1-2-7 and a harmonic output disc 1-2-10 and is fixedly connected between the flexible wheel connecting piece 1-2-8 and the harmonic output disc 1-2-10 through a bolt, the working end of the flexible wheel 1-2-7 is elastically deformed by the flexible bearing in the wave generator 1-2-1 and is fixedly connected with the right motor thermal control cover plate 1-2-6 through the right motor thermal control cover plate 1-2-1, and the harmonic steel wheel 1-2-2 is meshed with the right motor thermal control cover plate 1-2-1 through the bolt and the harmonic bearing.
The joint bearing assembly 1-2-4 comprises two angular contact bearings 1-2-4-1, a bearing outer ring gasket 1-2-4-2, a bearing inner ring retainer 1-2-4-3, a bearing retainer 1-2-4-4 and a joint bearing outer ring seat 1-2-4-5, wherein the two angular contact bearings 1-2-4-1 are arranged between a harmonic mounting seat 1-2-3 and the joint bearing outer ring seat 1-2-4-5 side by side, the bearing outer ring gasket 1-2-4-2 is arranged in the middle, the bearing retainer 1-2-4-4 is arranged on the right end face of the joint bearing outer ring seat 1-2-4-5 and is in contact with a bearing outer ring, the outer edge of the bearing inner ring retainer 1-2-4-3 is in contact with a right-side angular contact bearing inner ring, and the bearing outer ring is fixedly connected to the harmonic mounting seat 1-2-3 through bolts and gaskets.
The utility model discloses an open and shut motor actuating mechanism adopts the combined mode of little step motor and big speed reduction ratio harmonic reducer ware, can reduce the actuating mechanism overall weight that opens and shuts, promotes the passive shock resistance ability of open and shut mechanism, under the output moment that little step motor provided is 0.45Nm, keep the moment not less than 0.65 Nm's circumstances, the initiative that the instrument was reset is applyed in the pressure that this kind of structure can provide is greater than 36Nm, the reverse braking moment that prevents the instrument impact escape is greater than 105Nm, under the condition that does not change step motor, can effectively realize light, big speed reduction ratio and high reverse braking moment's demand.
An L-shaped stop block assembly 5 for pressing a tool is arranged on the inner side of the near motor end of the cover plate 2-3, the L-shaped stop block assembly 5 comprises an L-shaped stop block and a fastening bolt, a threaded through hole is formed in the long side of the L-shaped stop block, the L-shaped stop block passes through the threaded through hole on the L-shaped stop block through the fastening bolt to be connected with the inner side wall of the cover plate, and when the opening and closing driving mechanism 1 presses the triangular bracket type anti-impact cover plate mechanism 2 to enable the cover plate 2-3 to be closed with the tool bracket 4, the bottom surface of the short side of the L-shaped stop block is in contact with the tool. The L-shaped stop block assemblies 5 are arranged in four, and are symmetrically and fixedly arranged on the inner side walls of the cover plates 2-3 in a group. The design is that the near moment input end is 170mm away from the rotating shaft of the opening and closing motor, and the pressing force is provided when the near moment input end is contacted with a tool.
The two auxiliary brackets 2-2 are fixedly arranged on the main bracket 2-1 in a staggered manner. The main support 2-1 and the auxiliary support 2-2 are both connected with the long side of the cover plate 2-3, in the invention, the opening and closing driving stepping motor assembly 1-1 and the cover plate 2-3 are in offset connection with the two auxiliary supports 2-2 through the main support 2-1 to form an eccentric pressing mechanism, the stepping motor 1-1 provides driving moment and holding moment, the driving moment and the holding moment are transmitted to the main support 2-1 through the harmonic reducer assembly 1-2, the main support 2-1 transmits pressing force to the cover plate 2-3 through the main support 2-1 and the two auxiliary supports 2-2, and because the supports are in triangular arrangement, impact load generated by a single tool on the whole cover plate can be effectively resisted, the cover plate is prevented from being deformed due to offset load, and the eccentric pressing mechanism can effectively transmit the pressing moment, so that the cover plate 2-3 and the tool bracket 4 are prevented from being separated or the tool from being loaded.
The spring pressing plate 3-1-1 is of a strip-shaped structure, and a weight reducing groove is formed in the middle of the strip-shaped spring pressing plate 3-1-1 to reduce weight and improve rigidity.
According to the stepping motor 1-1, the output torque of the stepping motor is 0.45Nm, the holding torque is not less than 0.65Nm, the motor output torque is reduced through the harmonic reducer and then is transmitted to the main support 2-1 fixedly connected with the harmonic output disc 1-2-10, the combined mode of the stepping motor and the harmonic reducer not only reduces the total weight of the opening and closing driving mechanism and improves the passive shock resistance of the opening and closing mechanism, but also can provide an active application torque for resetting a pressing tool, the reverse braking torque for preventing the tool from escaping is greater than 36Nm, the reverse braking torque for preventing the tool from escaping is greater than 105Nm, the requirements of light weight, large reduction ratio and high reverse braking torque can be effectively met under the condition that the stepping motor is not changed, and because the cover plate 2-3 of the operation tool storage platform is transversely longer and has larger impact load, the main support 2-1 and the left and right auxiliary supports 2-2 are arranged in a triangle shape, and the cover plate 2-3 is jointly driven to open and close around the rotating shaft of the motor; the L-shaped stop block is rigidly pressed and fixedly connected to the cover plate through two bolts, the L-shaped stop block is designed at the position, which is near the moment input end and is 170mm away from the rotating shaft of the opening and closing motor, pressing force is provided when the L-shaped stop block is contacted with a tool, the L-shaped stop block is convenient for the tool to take out and does not interfere, and the cover plate is opened to an obtuse angle and can keep a pose, so that the tool can be taken out smoothly for use.
The spring buffer mechanism 3 is used for avoiding rigid collision between the tool and the operating tool storage platform cover plate 2-3, the spring buffer mechanism 3 is designed at the tool upper cover plate 2-3 by using a tension and compression spring, the tool is ensured to contact the elastic pressing mechanism at first at the moment of flying out, the impact contact time of the tool is prolonged by using spring compression energy absorption, and the spring compression distance of the spring buffer mechanism is 2mm.
The opening and closing driving mechanism and the triangular bracket type anti-impact cover plate jointly form a rigid pressing mechanism, a stepping motor provides reverse braking torque, and when the cover plate is closed, the tool is prevented from overturning and rotating, and the tool is prevented from being unstable. The spring buffer mechanism is designed on the cover plate, and has the function that when the tool bears impact load, the elastic mechanism can effectively prolong the contact time of the tool and the cover plate, and reduce the instantaneous impact force of the tool on the cover plate.
The embodiments of the invention disclosed above are intended only to help illustrate the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (10)
1. A light instantaneous impact-resistant push type operation tool storage platform is characterized in that: comprises an opening and closing driving mechanism (1), a tripod type anti-impact cover plate mechanism (2), a tool bracket (4) and a spring buffer mechanism (3);
the triangular bracket type anti-impact cover plate mechanism (2) comprises a main bracket (2-1), two auxiliary brackets (2-2) and a cover plate (2-3), wherein the auxiliary brackets (2-2) and the main bracket (2-1) are arranged in a triangular shape, the cover plate (2-3) of the triangular bracket type anti-impact cover plate mechanism (2) adopts a reinforcing beam frame type structure, the cover plate (2-3) is matched with a tool bracket (4), and a space for accommodating a tool supporting beam is formed between the cover plate (2-3) and the tool bracket (4); the multiple operation tools are arranged in parallel in a square bin of the tool bracket (4), reinforcing beams are respectively arranged at the fixedly connected positions of the cover plate (2-3) and the main bracket (2-1) and the auxiliary bracket (2-2), and a spring buffer mechanism (3) is arranged at the contact position of the multiple operation tools and the cover plate (2-3);
the opening and closing driving mechanism (1) comprises a stepping motor assembly (1-1) and a harmonic reducer assembly (1-2), the stepping motor (1-1-1) and the harmonic reducer assembly (1-2) of the stepping motor assembly (1-1) are fixedly arranged on a harmonic mounting seat (1-2-3), a harmonic output disc (1-2-10) of the harmonic reducer assembly (1-2) is fixedly connected with one end of a main support (2-1), the other end of the main support (2-1) is connected with a cover plate (2-3), one end of two auxiliary supports (2-2) is connected with the main support (2-1), and the other end of the auxiliary supports is fixedly connected with the cover plate (2-3);
the spring buffer mechanism (3) comprises a first spring buffer assembly (3-1), a second spring buffer assembly (3-2) and a third spring buffer assembly (3-3), wherein three spring buffer assemblies are sequentially arranged on the lower end face of the cover plate, the three spring buffer assemblies are identical in structure and comprise four compression springs (3-1-3), one spring buffer plate (3-1-1), two sliding pins (3-1-2) of the pressing mechanism and two pre-tightening bolts (3-1-4), the four compression springs (3-1-3) are arranged between the spring buffer plate (3-1-1) and the cover plate (2-3) in two groups, one end of each compression spring (3-1-3) is in contact with the cover plate (2-3) of the operation tool storage platform, the other end of each compression spring buffer assembly is arranged in a blind hole mounting groove of the spring buffer plate (3-1-1), the first spring buffer assembly (3-1) and the third spring buffer assembly (3-3) are connected with the center pin (3-1-4) through the pre-tightening bolts (3-1-4) through the assembly through the through-hole and the cover plate sliding pin, and the compression pin is connected with the center pin (2) through the threaded hole;
when a plurality of operating tools distributed in parallel in a straight line bear impact load, a stepping motor (1-1-1) in the opening and closing driving mechanism (1) operates to output active pressing force through a harmonic reducer assembly (1-2), and the plurality of operating tools firstly contact a spring buffer mechanism (3) on a cover plate (2-3) to transmit impact to a reinforcing beam of the cover plate (2-3) in the triangular bracket type anti-impact cover plate mechanism (2);
when a plurality of operating tools are taken and placed, the opening and closing driving mechanism (1) runs, the cover plate (2-3) is driven by the triangular bracket type anti-impact cover plate mechanism (2) to do opening and closing movement around a motor shaft, so that the opening and closing of the operating tool storage platform are realized, namely the separation and closing of the cover plate (2-3) and the tool bracket (4) are realized.
2. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the stepping motor component (1-1) further comprises a motor wire bracket (1-1-2), a motor wire clamp (1-1-3), a motor shaft (1-1-5), a motor fixing disc (1-1-4), a motor labyrinth sealing ring (1-1-6), a motor shaft sealing cover (1-1-7) and a wave generator locking nut (1-1-8), wherein the stepping motor (1-1-1) is fixedly connected to the motor fixing disc (1-1-4) through a plurality of bolts, the motor wire bracket (1-1-2) is fixedly connected to the tail part of the stepping motor (1-1-1) through bolts, the motor wire clamp (1-1-3) is fixedly arranged at the lower end of the motor wire bracket (1-1-2), the outer edge of the motor fixing disc (1-1-4) is fixedly connected to the harmonic reducer steel wheel (1-2-2) on the harmonic wave generator (1-2-2) of the harmonic reducer component (1-2) through countersunk screws, the motor shaft of the stepping motor (1-1-1) is connected with the harmonic reducer assembly (1-2) through a wave generator lock nut (1-1-8) and a flat key, and the motor shaft sealing cover (1-1-7) penetrates through the motor shaft (1-1-5) and the stepping motor (1-1) through a long screw to be fixedly connected.
3. A lightweight, impact resistant, push-button tool storage platform as defined in claim 2, wherein: the harmonic reducer assembly (1-2) further comprises a harmonic steel wheel (1-2-2), a flexible wheel (1-2-7), a flexible wheel connecting piece (1-2-8), a joint bearing assembly (1-2-4), a flexible wheel torque increasing gasket (1-2-9), a right motor thermal control cover plate (1-2-5) and a left motor thermal control cover plate (1-2-6), the wave generator (1-2-1) is mounted on a motor shaft (1-1-5) through a wave generator locking nut (1-1-8) and a plain key, the torque increasing gasket (1-2-9) is placed between the flexible wheel (1-2-7) and a harmonic output disc (1-2-10) and is fixedly connected between the flexible wheel connecting piece (1-2-8) and the harmonic output disc (1-2-10) through bolts, and the right motor thermal control cover plate (1-2-5) and the left motor thermal control cover plate (1-2-6) are fixedly connected to the right end face of the harmonic seat (1-2-3) through bolts.
4. A lightweight, impact resistant, push button tool storage platform as defined in claim 3, wherein: the joint bearing assembly (1-2-4) comprises two angular contact bearings (1-2-4-1), a bearing outer ring gasket (1-2-4-2), a bearing inner ring retainer ring (1-2-4-3), a bearing retainer ring (1-2-4-4) and a joint bearing outer ring seat (1-2-4-5), wherein the two angular contact bearings (1-2-4-1) are arranged between a harmonic mounting seat (1-2-3) and the joint bearing outer ring seat (1-2-4-5) side by side, the bearing outer ring gasket (1-2-4-2) is arranged between the two bearings, the bearing retainer ring (1-2-4-4) is arranged on the right end face of the joint bearing outer ring seat (1-2-4-5) through bolts and is contacted with a bearing outer ring, the outer edge of the bearing inner ring retainer ring (1-2-4-3) is contacted with a right side angular contact bearing inner ring, and the bearing outer ring is fixedly connected with the harmonic mounting seat (1-2-3) through bolts and the gasket.
5. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the novel anti-impact cover plate mechanism is characterized in that an L-shaped stop block assembly (5) for pressing tools is arranged on the inner side of the near motor end of the cover plate (2-3), the L-shaped stop block assembly (5) comprises an L-shaped stop block and a fastening bolt, a threaded through hole is formed in the long side of the L-shaped stop block, the L-shaped stop block penetrates through the threaded through hole in the L-shaped stop block through the fastening bolt to be connected with the inner side wall of the cover plate, and when the opening and closing driving mechanism (1) presses the triangular bracket type anti-impact cover plate mechanism (2) to enable the cover plate (2-3) to be closed with a tool bracket (4), the bottom surface of the short side of the L-shaped stop block is in contact with various operating tools.
6. A lightweight, impact resistant, push button tool storage platform as defined in claim 5, wherein: the L-shaped stop block assemblies (5) are arranged in four, and are symmetrically and fixedly arranged on the inner side wall, close to the motor end, of the cover plate (2-3) in a group.
7. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the main support (2-1) and the auxiliary support (2-2) are connected with the long side of the cover plate (2-3).
8. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the two auxiliary brackets (2-2) are fixedly arranged on the main bracket (2-1) in a staggered manner.
9. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the other end of the main support (2-1) is connected with the cover plate (2-3) through a heat insulation pad by bolts, one ends of the two auxiliary supports (2-2) are connected with the main support (2-1) through bolts, and the other ends of the two auxiliary supports (2-2) are fixedly connected with the cover plate (2-3) through the heat insulation pad by bolts.
10. A lightweight, impact resistant, push-button tool storage platform as defined in claim 1, wherein: the spring pressing plate (3-1-1) is of a strip-shaped structure, and a weight reduction groove is formed in the middle of the strip-shaped spring pressing plate (3-1-1); the cover plate (2-3) is of a rectangular structure, and a plurality of weight-reducing openings are formed in the edge of the cover plate and the reinforcing beam.
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| CN202210246602.XA CN114523482B (en) | 2022-03-14 | 2022-03-14 | Light instantaneous impact-resistant push type operation tool storage platform |
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