CN112454226B - General type adjustable positioning device of assembly fixture - Google Patents
General type adjustable positioning device of assembly fixture Download PDFInfo
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- CN112454226B CN112454226B CN202011312049.2A CN202011312049A CN112454226B CN 112454226 B CN112454226 B CN 112454226B CN 202011312049 A CN202011312049 A CN 202011312049A CN 112454226 B CN112454226 B CN 112454226B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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Abstract
The invention relates to the field of rocket assembly fixture, and discloses a universal adjustable positioning device of an assembly fixture, which comprises a positioning module, a circumferential displacement component, an axial displacement component and a radial displacement component, wherein the positioning module positions parts, the positioning module is installed on a module installation platform in the radial displacement component, the module installation platform generates displacement in the horizontal direction, a moving bracket in the axial displacement component supports the radial displacement component, the moving bracket generates displacement in the vertical direction, a supporting block in the circumferential displacement component supports the axial displacement component, and the supporting block generates circumferential displacement around the vertical direction. The invention solves the problem of high cost and poor adaptability of the positioning device in the rocket assembly fixture, enables the design and manufacture of the positioning device to be independent of the fixture, improves the universality and the utilization rate of the positioning device, adopts a sectional independent adjustment mode to accurately position three coordinate axes, is beneficial to improving the positioning precision of parts, and has wide application range.
Description
Technical Field
The invention relates to the technical field of rocket assembly fixture, in particular to a universal adjustable positioning device of an assembly fixture.
Background
After the existing carrier rocket is designed and manufactured, the rocket needs to be assembled, namely, devices, instruments, accessories, cables of all systems of the rocket and parts and components directly participating in final assembly are respectively assembled into related part forming sections, and then all the sections are butted with an engine to form the rocket. The assembly fixture is used as a device for providing accurate positioning and clamping for parts and assembly parts, and plays an important role in the assembly process of the rocket. Generally, parts and components with strict pressure resistance and sealing requirements, such as a rocket tank, a gas bottle, a conduit and the like, are fixed by welding, while non-sealing cabin bodies on rocket bodies are generally riveted, and corresponding assembling fixture is a riveting fixture.
The riveting fixture is used as a basic tool for assembling each section of the carrier rocket, and the structure of the riveting fixture directly influences the product quality of each section of the carrier rocket. And important structural parts needing to independently design a positioning tool on the fixture are also arranged in the interior of the carrier rocket section. Therefore, the ease of use, reliability, accuracy, etc. of the riveting jig and the positioning tool inside the same become important.
While the traditional riveting jig is usually assembled in a rocket by one section, namely, a complete riveting jig is specially used for assembling a section of rocket section. And because riveting fixture and the integrative nature of the location frock in inside thereof when designing manufacturing for the location of the spare part in the carrier rocket section also adopts the form of an thing frock, and a location frock is exclusively used in the location of a spare part. The positioning tool in the form is poor in adaptability, the structure of the rocket section is slightly modified, and the tool must be correspondingly adjusted and even redesigned and manufactured. Moreover, after most of tools are installed on corresponding parts, the tools are basically disassembled and left unused. The use frequency is low, the operation workload is large, and the time cost, the site cost, the economic cost and the like are relatively high, so the improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the universal adjustable positioning device for the assembly fixture, so that the design and the manufacture of the positioning device for the parts in the interior of the carrier rocket section are independent of the design and the manufacture of the riveting fixture, the universality and the utilization rate of the positioning device are greatly improved, and the positioning device has the advantages of accurately limiting six degrees of freedom of the parts in the space, and has high positioning precision and wide application range.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a universal adjustable positioning device for an assembly fixture comprises a positioning module, a circumferential displacement assembly, an axial displacement assembly and a radial displacement assembly, wherein the positioning module is used for positioning parts, the radial displacement assembly comprises a module mounting platform, a rocker arm, an interface ring plate, a rack and a rolling gear, the positioning module is mounted on the module mounting platform, the module mounting platform is fixedly connected with the rocker arm, the rack is fixedly connected with the rocker arm, the rolling gear is rotationally connected with the interface ring plate, the rolling gear is meshed with the rack and is matched with the rack, and the rolling gear drives the rack to generate displacement in the horizontal direction;
the axial displacement assembly comprises a moving bracket, a lead screw, an upright post, a sliding block and a lower bearing fixing plate, wherein the moving bracket is fixedly connected with the sliding block, the sliding block is detachably connected with an interface annular plate, the lead screw is vertically arranged and rotatably connected inside the upright post, the lower bearing fixing plate is fixedly connected to the bottom end of the upright post, the lead screw is in threaded fit with the moving bracket, and the lead screw drives the moving bracket to generate displacement in the vertical direction;
the circumferential displacement assembly comprises a supporting block, a worm, a transmission gear and a rotating gear, the supporting block is fixedly connected with the lower bearing fixing plate, the worm is meshed and matched with the transmission gear, the transmission gear is meshed with the rotating gear, the rotating gear is fixedly connected with the supporting block, and the rotating gear drives the supporting block to generate circumferential displacement around the vertical direction.
By adopting the technical scheme, when the assembly fixture used in the assembly work of the rocket is designed and manufactured, the positioning piece of each part needing to be positioned does not need to be separately designed and manufactured, and all parts needing to be positioned can be accurately positioned by the universal adjustable positioning device of the assembly fixture in cooperation with the positioning module. With this frequency of use and work efficiency that have improved this positioner, very big reduction the design manufacturing cost, time cycle cost and the place use cost etc. of whole riveting type frame, make this general type positioner can satisfy multiple different type frame simultaneously, improved this positioner's practicality. Meanwhile, the radial displacement assembly can complete the positioning of the parts in the horizontal direction, the axial displacement assembly can complete the positioning of the parts in the vertical direction, the circumferential displacement assembly can complete the positioning of the parts in the circumferential direction, and the three coordinate axes are accurately positioned in a sectional independent adjusting mode, so that the positioning precision of the parts is improved, and the assembling quality of the rocket is improved.
The invention is further configured to: the positioning module is detachably connected with the module mounting platform.
By adopting the technical scheme, when the positioning device is used, the positioning module matched with the part to be positioned can be selected according to different parts to be positioned, and the practicability of the positioning device is improved. Meanwhile, the circumferential displacement assembly, the axial displacement assembly and the radial displacement assembly of the positioning device are all universal adjusting structures, and only the positioning module needs to be designed and manufactured independently, so that the production design cost and the time period of the positioning device are greatly reduced, the rocket assembly efficiency is indirectly improved, and the cost is reduced.
The invention is further configured to: the base comprises a rotating mechanism mounting platform, the circumferential displacement assembly comprises a base mounting interface platform, the rotating mechanism mounting platform is connected with the base mounting interface platform through bolts, the lower bearing fixing plate is connected with the supporting block through bolts, and the sliding block is connected with the interface ring plate through bolts.
Through adopting above-mentioned technical scheme, be bolted connection between base and the circumference displacement subassembly, between circumference displacement subassembly and the axial displacement subassembly, between axial displacement subassembly and the radial displacement subassembly, have quick assembly disassembly's advantage. When a holistic positioner leads to whole unable use because of behind certain part trouble, can demolish the trouble part fast and change the new subassembly of dress, make things convenient for operating personnel to get rid of the trouble fast, avoided leading to whole positioner to be unable to use because of certain part trouble, improved this positioner's practicality, and because positioner can dismouting at any time, can disassemble according to the place needs in warehouse when idle to the space utilization in warehouse has been improved.
The invention is further configured to: the circumferential displacement assembly, the axial displacement assembly and the radial displacement assembly are all formed by combining standard pieces.
Through adopting above-mentioned technical scheme, greatly reduced this assembly fixture's adjustable positioner of general type's manufacturing cost and time, simultaneously because the quality of standard component is reliable and relatively stable, improved this positioner's practicality and economic nature.
The invention is further configured to: the radial displacement assembly further comprises a pointer, a radial scale is arranged on the rocker arm, the pointer sharp corner points to the radial scale, an axial scale is arranged on the stand column, and the upper edge and the lower edge of the rocker arm are perpendicular to the length direction of the axial scale.
Through adopting above-mentioned technical scheme, but operating personnel knows the displacement distance of radial displacement subassembly in vertical side through observing the position of rocking arm upper and lower edge for the axial scale quantitatively, and simultaneously, operating personnel can know the displacement distance of rocking arm on the horizontal direction quantitatively through observing the pointer for the position of radial scale, and the setting of axial scale and radial scale has not only made things convenient for operating personnel's operation and use, has improved the positioning accuracy of this positioner to spare part simultaneously.
The invention is further configured to: the axial displacement assembly further comprises an installation interface platform, and the installation interface platform is detachably connected with other positioning pieces.
By adopting the technical scheme, the installation interface platform can be in butt joint fit with positioning pieces or working platforms such as other clamps and tools, the installation interface platform is more flexible and convenient to use due to the detachable connection design, and the application range of the universal adjustable positioning device of the assembly fixture is effectively enlarged.
The invention is further configured to: the radial displacement assembly further comprises a rib plate, the two rocker arms are parallel and symmetrically arranged, the rib plate is fixedly connected with the two rocker arms, and the module mounting platform is fixedly connected with the two rocker arms.
Through adopting above-mentioned technical scheme, module mounting platform is supported by two rocking arms jointly, has improved rocking arm to module mounting platform's supporting effect and stability greatly, and the floor has further strengthened the structural strength between two rocking arms, and then has improved rocking arm support module mounting platform's stability, is favorable to improving this positioner to the positioning accuracy of spare part.
The invention is further configured to: the two racks are respectively and symmetrically fixed on the two rocker arms, the two rolling gears are respectively meshed with one rack, and the two rolling gears synchronously rotate.
By adopting the technical scheme, the two rocker arms are driven by the two rolling gears and the two racks simultaneously and synchronously, the condition that the stress is uneven when the single rolling gear and one rack drive the two rocker arms is avoided, the stability of the module mounting platform in the horizontal direction during displacement is further improved, and the positioning precision of the positioning device to parts is favorably improved.
The invention is further configured to: the circumferential displacement assembly further comprises a base installation interface platform, a limiting hole is formed in the base installation interface platform, and a supporting block is limited by the limiting hole.
By adopting the technical scheme, the supporting block is always in the constraint limit of the limit hole in the process of generating circumferential displacement around the vertical direction, and the limit hole effectively prevents the supporting block from deviating from the preset motion track, so that the positioning precision of the part to be positioned by the universal adjustable positioning device of the assembly fixture is improved.
The invention is further configured to: the base further comprises a supporting plate and a supporting column, and the supporting plate is connected with the supporting column through bolts.
Through adopting above-mentioned technical scheme, the backup pad cooperation that the support column can be according to the in-service use demand at any time and not equidimension or shape is fixed, has improved the adaptability of this assembly type frame's adjustable positioner of general type to under the different operating modes, has also improved the stability of base simultaneously.
In summary, the invention has the following beneficial effects:
(1) the design and the manufacture of the positioning device are independent of the design and the manufacture of the riveting fixture, the use frequency and the work efficiency of the positioning device are improved, the design and the manufacture cost, the time period cost, the field use cost and the like of the integral riveting fixture are greatly reduced, meanwhile, the universal positioning device can meet various different fixtures, and the practicability of the positioning device is improved;
(2) the positioning device accurately positions three coordinate axes in a sectional independent adjustment mode, so that the positioning precision of parts is improved, and the assembly quality of the rocket is improved;
(3) the base is connected with the circumferential displacement assembly, the circumferential displacement assembly is connected with the axial displacement assembly, and the axial displacement assembly is connected with the radial displacement assembly through bolts, so that the positioning device has the advantages of quick assembly and disassembly, the problem that the whole positioning device cannot be used due to a certain part of faults is avoided, and the practicability of the positioning device is improved;
(4) circumferential displacement subassembly, axial displacement subassembly and radial displacement subassembly among this positioner constitute by the standard part combination, greatly reduced this positioner's manufacturing cost and time, simultaneously because the quality of standard part is reliable and relatively stable, improved this positioner's practicality and economic nature.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and those skilled in the art can also obtain other drawings according to the drawings.
FIG. 1 is a schematic view of the general adjustable positioning device of the present assembly fixture;
FIG. 2 is a schematic structural diagram of a base;
FIG. 3 is a schematic structural view of the circumferential displacement mechanism;
FIG. 4 is a schematic structural view of the axial displacement mechanism;
fig. 5 is a schematic structural view of the radial displacement mechanism.
Reference numerals
1. A base; 11. a support plate; 12. a support pillar; 13. a rotating mechanism mounting platform; 2. a circumferential displacement assembly; 21. a base mounting interface platform; 22. a worm; 23. a circumferential hand wheel; 24. a transmission gear; 25. a rotating gear; 26. a support block; 27. a limiting hole; 3. an axial displacement assembly; 31. a column; 311. an axial scale; 32. a lower bearing fixing plate; 33. an upper bearing fixing plate; 34. a lead screw; 35. a moving bracket; 36. a slider; 37. a guide rail; 38. an axial hand wheel; 39. installing an interface platform; 4. a radial displacement assembly; 41. an interface ring plate; 42. a rolling gear; 43. a radial hand wheel; 44. a rack; 45. a rocker arm; 451. a slide rail; 452. a radial scale; 46. a rib plate; 47. a module mounting platform; 48. a pointer.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the general adjustable positioning device for assembling fixture includes a base 1, a circumferential displacement assembly 2, an axial displacement assembly 3 and a radial displacement assembly 4.
As shown in fig. 1 and 2, the base 1 includes a support plate 11, a support column 12, and a rotation mechanism mounting platform 13.
The supporting plate 11 is a square plate, and the number of the supporting plate is one, the supporting plate is horizontally placed on the working platform, and has a supporting function on the whole positioning device, in other embodiments, the supporting plate 11 can also be a circular plate.
The support columns 12 are rectangular column-shaped, and are vertically arranged right above the support plate 11. The area of the upper surface of the support plate 11 is larger than that of the lower surface of the support column 12, and the center line of the support column 12 coincides with the center line of the support plate 11 in the vertical direction.
The bottom surface of support column 12 can be dismantled with the upper surface of backup pad 11 and be connected, adopts bolted connection between support column 12 and the backup pad 11 in this embodiment, and the backup pad 11 cooperation of the support column 12 and not equidimension or shape of being convenient for is fixed according to the in-service use demand.
The upper surface of the supporting column 12 is the rotating mechanism mounting platform 13 for abutting the circumferential displacement assembly 2.
As shown in fig. 1 and fig. 3, the circumferential displacement assembly 2 enables components above the base 1 of the positioning device to simultaneously generate circumferential displacement around a vertical direction, and specifically, the circumferential displacement assembly 2 includes a base mounting interface platform 21, a worm 22, a circumferential hand wheel 23 and a transmission gear 24.
The base mounting interface platform 21 is a rectangular box, and the number of the base mounting interface platforms is one, the base mounting interface platform is horizontally arranged on the rotating mechanism mounting platform 13 and detachably connected with the rotating mechanism mounting platform 13, and in this embodiment, the rotating mechanism mounting platform 13 is connected with the base mounting interface platform 21 through bolts.
The worm 22 is horizontally disposed, and the length of the worm 22 is the same as the width of the base mounting interface platform 21, and the worm 22 is rotatably connected to one end of the base mounting interface platform 21 away from the rotating mechanism mounting platform 13.
The circumferential hand wheel 23 is fixedly connected with one end of the worm 22, and the axis of the circumferential hand wheel 23 is overlapped with the axis of the worm 22.
The number of the transmission gears 24 is one, and the transmission gears are horizontally arranged and rotatably connected to the base mounting interface platform 21. The drive gear 24 meshes with the worm 22, and rotation of the worm 22 along its own axis drives the drive gear 24 to rotate along its own axis in the horizontal direction.
The circumferential displacement assembly 2 further comprises a rotary gear 25 and a support block 26.
The rotating gear 25 is horizontally arranged at one end, far away from the worm 22, of the base installation interface platform 21, the bottom end of the rotating gear 25 is rotatably connected to the base installation interface platform 21, and the top end of the rotating gear 25 is fixedly connected with the supporting block 26. The rotating gear 25 is meshed with the transmission gear 24, and when the transmission gear 24 rotates, the rotating gear 25 can be driven to horizontally rotate along the axis of the rotating gear 25.
The supporting blocks 26 are cylindrical blocks, one in number, and are horizontally fixed on the upper surface of the rotary gear 25.
The upper surface of the base mounting interface platform 21 is provided with a limiting hole 27, the shape and size of which are matched with those of the supporting block 26, and the limiting hole is used for limiting the supporting block 26, so that the supporting block 26 can only rotate around the axis of the supporting block 26 under the driving of the rotating gear 25 in the limiting hole 27.
As shown in fig. 1 and 4, the axial displacement assembly 3 enables the radial displacement assembly 4 of the positioning device to be displaced in a vertical direction as a whole, and specifically, the axial displacement assembly 3 includes a column 31, a lower bearing fixing plate 32, an upper bearing fixing plate 33, a lead screw 34 and an axial hand wheel 38.
The upright columns 31 are in the shape of a cuboid cylinder, and are vertically arranged. An axial scale 311 is engraved on the column 31, and the longitudinal direction of the axial scale 311 is the same as the longitudinal direction of the column 31.
The lower bearing fixing plate 32 is fixedly connected to the bottom end of the upright 31, and the upper bearing fixing plate 33 is fixedly connected to the top end of the upright 31.
The lower bearing fixing plate 32 is detachably connected to the supporting block 26, and in this embodiment, the lower bearing fixing plate 32 is connected to the supporting block 26 by bolts. And the center line of the upright column 31 in the vertical direction coincides with the center line of the support column 12 in the vertical direction.
The column 31 is hollow inside, so that the lead screw 34 can be rotatably connected inside the column 31, the length direction of the lead screw 34 is the same as that of the column 31, and the axis of the lead screw 34 coincides with the center line of the column 31 in the vertical direction. Both ends of the screw 34 are sleeved with bearings, and the bearings are fixed at both ends of the upright column 31 through an upper bearing fixing plate 33 and a lower bearing fixing plate 32.
One end of the lead screw 34 passes through the upper bearing fixing plate 33 and is fixedly connected with the axial hand wheel 38, so that the rotation of the axial hand wheel 38 drives the lead screw 34 to rotate along the axis thereof.
The axial displacement assembly 3 further comprises a displacement bracket 35, a slider 36 and a guide rail 37.
The moving bracket 35 is a rectangular parallelepiped block, the number of the moving bracket is one, the cross section of the horizontal direction of the moving bracket is matched with the internal shape of the upright column 31, and the lead screw 34 passes through the moving bracket 35 and is in threaded fit with the moving bracket 35, so that the rotation of the lead screw 34 can drive the moving bracket 35 to move up and down along the vertical direction inside the upright column 31.
The sliding blocks 36 are in the shape of a cuboid block, the number of the sliding blocks is two, and the sliding blocks are symmetrically arranged on two sides of the upright column 31. Two through holes have been seted up to the bilateral symmetry that stand 31 was provided with slider 36, and slider 36 passes through-hole and the inside removal bracket 35 fixed connection of stand 31 for remove bracket 35 and can drive two sliders 36 and reciprocate along vertical direction.
The guide rails 37 are fixed on two sides of the upright column 31, which are provided with the sliding blocks 36, and the two guide rails 37 are symmetrically distributed and used for limiting the sliding blocks 36, so that the sliding blocks 36 can only move along the length direction of the guide rails 37.
The axial displacement assembly 3 also includes a mounting interface platform 39. The mounting interface platform 39 is a plate-shaped interface, protrudes from the upright column 31, and is fixed on the side of the upright column 31 where the slide block 36 is not arranged. The mounting interface platform 39 is used for being in butt joint fit with other working platforms such as clamps and tools, the mounting interface platform 39 is more flexible and convenient to use due to the detachable connection design, and the application range of the universal adjustable positioning device of the assembly fixture is effectively enlarged.
As shown in fig. 1 and 5, the radial displacement assembly 4 allows the working part of the positioning device to be displaced in the horizontal direction, and specifically, the radial displacement assembly 4 includes an interface ring plate 41, a rib plate 46, a module mounting platform 47 and a rocker arm 45.
The interface ring plate 41 is an annular plate, and the shape and size of the interface ring plate are matched with the outline of the upright column 31, so that the interface ring plate 41 can be sleeved on the periphery of the upright column 31. The sliding blocks 36 on both sides of the upright 31 are detachably connected to the interface ring plate 41, preferably by bolts in this embodiment.
The rocker arms 45 are rectangular plate-shaped, the number of the rocker arms is two, and the two rocker arms 45 are symmetrically distributed on two sides of the interface ring plate 41. The two rocker arms 45 are horizontally disposed such that the upper and lower edges of the rocker arms 45 are perpendicular to the axial scale 311 on the column 31.
A slide rail 451 is horizontally arranged on one side of each rocker arm 45 facing the interface ring plate 41. The slide rail 451 protrudes from the swing arm 45, and a groove, which is a dovetail groove in this embodiment, is formed on one side of the slide rail 451 facing the interface ring plate 41.
The interface ring plate 41 is provided with sliding blocks adapted to the grooves on the sliding rails 451 at corresponding positions on two sides of the two swing arms 45, so that the two swing arms 45 can freely slide on two sides of the interface ring plate 41.
The rib plate 46 is in a rectangular plate shape, the height of the rib plate 46 in the vertical direction is the same as that of the rocker arms 45, the length of the rib plate 46 is the same as the distance between the two rocker arms 45, and two ends of the rib plate 46 in the length direction are fixedly connected with one ends of the two rocker arms 45 respectively. The rib 46 serves to reinforce the structural strength between the two rocker arms 45 and allows the two rocker arms 45 to slide synchronously with respect to the interface ring plate 41.
The module mounting platform 47 is rectangular plate-shaped, the height of the module mounting platform in the vertical direction is the same as that of the rocker arms 45, the length of the rib plate 46 is the same as the distance between the two rocker arms 45, and two ends of the module mounting platform 47 in the length direction are fixedly connected with one ends, far away from the rib plate 46, of the two rocker arms 45 respectively. The module mounting platform 47 further strengthens the structure between the two swing arms 45.
Meanwhile, different mounting ports, such as clamping grooves or threaded holes, are formed in the module mounting platform 47 according to actual working conditions, so that different positioning modules can be quickly disassembled and assembled on one side of the module mounting platform 47, which is far away from the rib plate 46, so as to meet different positioning requirements. And the positioning module is a part which is used for accurately positioning the part and is in direct contact with the part to be positioned. In this embodiment, the module mounting platform 47 is provided with four through holes, which can be connected to different positioning modules by bolts.
The radial displacement assembly 4 further comprises a rolling gear 42, a radial handwheel 43 and a rack 44.
The number of the racks 44 is two, and the length thereof is the same as that of the rocker arm 45. The two racks 44 are horizontally fixed on the opposite sides of the two rocker arms 45, and the two racks 44 are positioned above the sliding rail 451.
The number of the rolling gears 42 is two, the two rolling gears 42 are rotatably connected to the interface ring plate 41, and the two rolling gears synchronously rotate and are respectively meshed with a rack 44, so that the rotation of the gears drives the two rocker arms 45 to move in the horizontal direction.
The center of the radial hand wheel 43 is located on the axis of the two rolling gears 42, so that an operator can conveniently adjust the position of the rocker arm 45 in the horizontal direction.
A horizontally arranged radial scale 452 is carved on the side of the rocker arm 45 away from the rack 44, and the length of the radial scale 452 is the same as that of the rocker arm 45.
The radial displacement assembly 4 further comprises a pointer 48, the bottom end of which is fixed on the interface ring plate 41, and the sharp corner of the pointer 48 points to the radial scale 452, so that the operator can quantify the displacement of the rocker arm 45 in the horizontal direction.
The implementation principle of the above embodiment is as follows:
when the universal adjustable positioning device of the assembly fixture is used for positioning parts in the assembly work of the rocket, the supporting plate 11 is horizontally placed on the working platform, and then the positioning module to be used is fixedly installed on the module installation platform 47 according to the actual working condition. Then, the circumferential hand wheel 23 is rotated to drive the worm 22 to rotate, and further the rotary gear 25 is driven to rotate, so that the axial displacement component 3 and the radial displacement component 4 which are fixedly connected with the supporting block 26 both move circumferentially. After the circumferential hand wheel 23 is adjusted to align the positioning module with the component to be positioned, the axial hand wheel 38 is rotated to drive the lead screw 34 to rotate, so as to drive the slider 36 fixedly connected with the moving bracket 35 to move up and down in the vertical direction along the guide rail 37, and finally, the radial displacement assembly 4 is driven to align with the component to be positioned in the vertical direction. In particular, the operator can be helped to quantitatively adjust the amount of displacement of the radial displacement assembly 4 in the vertical direction by observing the different positions of the axial scale 311 of the edge of the rocker arm 45 on the upright 31. And the threaded fit between the lead screw 34 and the moving bracket 35 effectively prevents the moving bracket 35 from driving the lead screw 34 to rotate under the action of gravity and causing errors in positioning. Finally, the radial hand wheel 43 is rotated to drive the gear to rotate, so that the rocker arm 45 is driven to move in the horizontal direction, and finally the positioning module is driven to move in place in the horizontal direction, so that the positioning module is completely aligned with the part to be positioned, and the part is positioned.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The universal adjustable positioning device for the assembly fixture is characterized by comprising a positioning module, a circumferential displacement assembly (2), an axial displacement assembly (3) and a radial displacement assembly (4), wherein the positioning module is used for positioning parts, the radial displacement assembly (4) comprises a module mounting platform (47), a rocker arm (45), an interface ring plate (41), a rack (44) and a rolling gear (42), the positioning module is mounted on the module mounting platform (47), the module mounting platform (47) is fixedly connected with the rocker arm (45), the rack (44) is fixedly connected with the rocker arm (45), the rolling gear (42) is rotatably connected with the interface ring plate (41), the rolling gear (42) is meshed with the rack (44) and the rolling gear (42) drives the rack (44) to generate displacement in the horizontal direction;
the axial displacement assembly (3) comprises a moving bracket (35), a lead screw (34), an upright post (31), a sliding block (36) and a lower bearing fixing plate (32), the moving bracket (35) is fixedly connected with the sliding block (36), the sliding block (36) is detachably connected with an interface annular plate (41), the lead screw (34) is vertically arranged and rotatably connected inside the upright post (31), the lower bearing fixing plate (32) is fixedly connected to the bottom end of the upright post (31), the lead screw (34) is in threaded fit with the moving bracket (35), and the lead screw (34) drives the moving bracket (35) to generate displacement in the vertical direction;
the circumferential displacement assembly (2) comprises a supporting block (26), a worm (22), a transmission gear (24) and a rotating gear (25), the supporting block (26) is detachably connected with a lower bearing fixing plate (32), the worm (22) is meshed and matched with the transmission gear (24), the transmission gear (24) is meshed with the rotating gear (25), the rotating gear (25) is fixedly connected with the supporting block (26), and the rotating gear (25) drives the supporting block (26) to generate circumferential displacement around the vertical direction.
2. Universal adjustable positioning device for assembly jigs, according to claim 1, characterized in that said positioning module is removably connected to the module mounting platform (47).
3. The universal adjustable positioning device of an assembly jig of claim 1, further comprising a base (1), wherein the base (1) comprises a rotating mechanism mounting platform (13), the circumferential displacement assembly (2) comprises a base mounting interface platform (39), the rotating mechanism mounting platform (13) is bolted to the base mounting interface platform (39), the lower bearing fixing plate (32) is bolted to the support block (26), and the slider (36) is bolted to the interface ring plate (41).
4. Universal adjustable positioning device of the type with assembly jig according to claim 1, characterized in that said circumferential displacement assembly (2), axial displacement assembly (3) and radial displacement assembly (4) are all composed of a combination of standard pieces.
5. The universal adjustable positioning device for the assembly fixture according to claim 1, wherein the radial displacement assembly (4) further comprises a pointer (48), the rocker arm (45) is provided with a radial scale (452), a sharp angle of the pointer (48) points to the radial scale (452), the upright column (31) is provided with an axial scale (311), and upper and lower edges of the rocker arm (45) are perpendicular to a length direction of the axial scale (311).
6. Universal adjustable positioning device of the assembly jig of claim 1, characterized in that said axial displacement assembly (3) further comprises a mounting interface platform (39), said mounting interface platform (39) being removably connected with other positioning elements.
7. The universal adjustable positioning device of an assembly jig according to claim 1, characterized in that the radial displacement assembly (4) further comprises a rib (46), the two rocker arms (45) are arranged in parallel and symmetrically, the rib (46) is fixedly connected with the two rocker arms (45) at the same time, and the module mounting platform (47) is fixedly connected with the two rocker arms (45) at the same time.
8. The universal adjustable positioning device of an assembly jig according to claim 7, characterized in that two racks (44) are respectively and symmetrically fixed on two swing arms (45), two rolling gears (42) are respectively engaged with one rack (44), and the two rolling gears (42) rotate synchronously.
9. The universal adjustable positioning device of an assembly fixture according to claim 1, wherein the circumferential displacement assembly (2) further comprises a base mounting interface platform (39), the base mounting interface platform (39) is provided with a limiting hole (27), and the limiting hole (27) limits the supporting block (26).
10. Universal adjustable positioning device for assembly jigs according to claim 3, characterized in that said base (1) further comprises a support plate (11) and a support column (12), said support plate (11) and support column (12) being bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN116409452B (en) * | 2023-04-10 | 2024-04-23 | 南京全信传输科技股份有限公司 | Seabed power communication pressure-resistant cabin with adjustable function and disassembly and assembly method |
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