CN109807894B - Angular fine-adjustment device - Google Patents
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- CN109807894B CN109807894B CN201910125777.3A CN201910125777A CN109807894B CN 109807894 B CN109807894 B CN 109807894B CN 201910125777 A CN201910125777 A CN 201910125777A CN 109807894 B CN109807894 B CN 109807894B
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Abstract
The invention relates to the field of mechanical assembly auxiliary equipment, and provides an angular fine adjustment device which comprises a clamping mechanism, a driving adjustment mechanism and a base, wherein the driving adjustment mechanism comprises a linear motion assembly and an angle fine adjustment connector, two ends of the clamping mechanism are respectively hinged with the linear motion assembly and the base, the linear motion assembly moves linearly to drive the clamping mechanism to rotate relative to the base, the angle fine adjustment connector is connected with the linear motion assembly and the base, and the angle fine adjustment connector adjusts the connection angle of the linear motion assembly and the base to adapt to the rotation of the clamping mechanism. The invention provides the angular fine adjustment device which is simple in structure, simple and convenient to operate, high in adjustment precision, safe and stable.
Description
Technical Field
The invention relates to the field of mechanical assembly auxiliary equipment, in particular to an angular fine adjustment device.
Background
Mechanical assembly refers to the connection of mechanical parts or components according to the design technical requirements, and the mechanical parts or components are combined into a machine. The quality of the machine assembly work plays a very important role in the efficiency of the machine, the accuracy of the operation, the duration of the repair, the labor and cost of the work, etc.
In the assembly process of large parts, the phenomenon that the axis of a workpiece deviates occurs in mechanical equipment due to various error factors such as deformation caused by load action, surface manufacturing error, clamp manufacturing error and the like in the assembly process of the workpiece and the overturning process of the whole machine. In particular, for the assembly process of shaft workpieces with large size and large mass, the technical requirements on operators are high, the assembly precision requirements of mechanical equipment cannot be met, and meanwhile, certain potential safety hazards exist.
Disclosure of Invention
Technical problem to be solved
The invention aims to at least solve one of the technical problems in the prior art or the related technology, and the axis of a workpiece is deviated and can not meet the requirement of assembly precision due to the influence of load deformation, machining errors, assembly errors and the like in the mechanical assembly process.
The purpose of the invention is: the angular fine adjustment device is simple in structure, easy and convenient to operate, high in adjustment precision, safe and stable.
(II) technical scheme
In order to solve the technical problem, the invention provides an angular fine adjustment device which comprises a clamping mechanism, a driving adjustment mechanism and a base, wherein the driving adjustment mechanism comprises a linear motion assembly and an angular fine adjustment connector, two ends of the clamping mechanism are respectively hinged with the linear motion assembly and the base, the linear motion assembly moves linearly to drive the clamping mechanism to rotate relative to the base, the angular fine adjustment connector is connected with the linear motion assembly and the base, and the angular fine adjustment connector adjusts the connection angle of the linear motion assembly and the base to adapt to the rotation of the clamping mechanism.
Preferably, the linear motion assembly comprises a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly is connected with the angle fine adjustment connector and the second connecting rod assembly, and the second connecting rod assembly is adjusted in a linear movement mode relative to the first connecting rod assembly.
In any of the above schemes, preferably, the first link assembly includes a first link, the first link penetrates through the guiding limiting seat to be connected with the angle fine-tuning connector, the guiding limiting seat is rotatably connected in the fixing seat, and the fixing seat is fixedly connected to the base.
In any of the above schemes, preferably, the first link assembly and the second link assembly respectively include a screw rod and a nut which are matched with each other, the screw rod and the nut are linearly moved and adjusted, the angle fine-tuning connector penetrates through the base to connect with a driving device, and the driving device is connected with the base.
In any of the above schemes, preferably, the base is provided with a mounting hole, the angle fine-tuning connector penetrates through the mounting hole, the driving device is provided with a connecting seat, the connecting seat is fixedly connected with the base, the connecting seat is covered and buckled on the angle fine-tuning connector, and the angle fine-tuning connector comprises a corrugated pipe coupler.
In any of the above schemes, preferably, the second link assembly further includes a second link, the second link includes a linear connecting groove and a rotary connecting groove, the nut is connected in the linear connecting groove, and the clamping mechanism rotates relative to the rotary connecting groove.
In any of the above schemes, preferably, the clamping mechanism includes a clamping bottom plate and a clamping jaw assembly, the clamping bottom plate is connected to the linear motion assembly and the base, the clamping jaw assembly is slidably connected to the clamping bottom plate, and the clamping jaw assembly clamps the component to be adjusted.
In any of the above schemes, preferably, the clamping mechanism is connected with a third connecting rod assembly, the third connecting rod assembly includes a third connecting rod and a second mounting seat, the third connecting rod is rotatably connected with the linear motion assembly, and the second mounting seat is fixedly connected with the third connecting rod and the clamping mechanism.
In any of the above schemes, preferably, the base is connected with a fourth connecting rod assembly, the fourth connecting rod assembly includes a fourth connecting rod and a fourth supporting seat, the fourth supporting seat is fixedly connected to the base, the fourth connecting rod is rotatably connected to the inside of the fourth supporting seat, and the clamping mechanism is connected to the fourth connecting rod.
In any of the above schemes, preferably, the base is designed to be a convex structure, and the base is connected with a plurality of reinforcing plates and a plurality of reinforcing ribs.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages:
(1) the connecting rod mechanism is formed by matching the driving adjusting mechanism, the base and the clamping mechanism, the driving adjusting mechanism moves linearly to drive the clamping mechanism to rotate and adjust, the clamping mechanism clamps and fixes a part to be adjusted, the clamping mechanism pushes the part to be adjusted to be subjected to axial fine adjustment, the coaxial alignment assembly process is subjected to fine adjustment through the connecting rod type structure, the angle fine adjustment of the part to be adjusted can be realized, and the connecting rod type structure is particularly suitable for mounting and adjusting axial positioning parts such as large-scale space engines, turbojet engines and gas turbines;
(2) in order to ensure the driven adjustment of the driving adjustment mechanism, the driving adjustment mechanism is divided into two parts, namely a linear motion assembly and an angle fine adjustment connector which are connected with each other, wherein the linear motion assembly provides the moving power of the clamping mechanism, and the angle fine adjustment connector is used for adapting to the driven inclination of the driving adjustment mechanism, so that the adjustment precision is ensured, and the device is prevented from generating movement dead angles.
Drawings
FIG. 1 is a schematic structural diagram of an angular fine adjustment apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of a preferred embodiment of the angular fine adjustment apparatus of the present invention showing a structure of a clamping mechanism removed from an axial side;
FIG. 3 is a schematic view of an alternate view of the preferred embodiment of the angular adjustment apparatus of the present invention with the clamping mechanism removed;
FIG. 4 is a schematic top view of a preferred embodiment of the angular vernier device of the present invention with the clamping mechanism removed;
FIG. 5 is a schematic side view of a preferred embodiment of the angular vernier device of the present invention with the clamping mechanism removed;
FIG. 6 is a schematic structural diagram of a base of an angular fine adjustment apparatus according to a preferred embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a third connecting seat of the angular fine adjustment apparatus according to a preferred embodiment of the present invention;
FIG. 8 is a schematic view of a portion of a second link of the angular fine adjustment apparatus of the present invention;
FIG. 9 is a schematic structural view of a preferred embodiment of a clamping mechanism of the angular fine adjustment device of the present invention;
the clamping mechanism in fig. 1 only shows the clamping bottom plate, and does not show the structure of the clamping jaw assembly and the components such as the slide rail and the like matched with the clamping jaw assembly;
in the figure, 1, a clamping mechanism; 2. a drive motor; 3. a connecting seat; 4. a base; 5. a first link; 6. a second link; 7. a third link; 8. a fourth link; 9. a fourth supporting seat; 10. a first mounting seat; 11. a reinforcing plate; 12. reinforcing ribs; 13. a fixed seat; 14. a guiding limiting seat; 15. an angle fine-tuning connector; 16. a second mounting seat; 17. mounting holes; 18. a linear connecting groove; 19. rotating the connecting groove; 20. clamping the bottom plate; 21. a jaw assembly; 22. a guide slide rail; 23. the drive is adjusted.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the process of assembling large parts, the axis of a workpiece slightly deviates, and particularly large equipment with high assembly precision needs to be subjected to fine adjustment aiming at the axis deviation so as to meet the assembly requirement. Therefore, the invention provides an angular fine adjustment device which realizes the angle adjustment of a workpiece and a workpiece clamping mechanism through a connecting rod type action mechanism so as to solve the problem of low assembly precision in assembly.
Referring to fig. 1-9, the present invention provides a preferred embodiment of an angular fine adjustment device, which includes a clamping mechanism 1, a driving adjustment mechanism and a base 4, wherein the base 4 is used as a supporting and fixing component, the clamping mechanism 1 clamps and fixes a component to be adjusted, the clamping mechanism 1 rotates and adjusts relative to the base 4 to drive the component of the equipment to be assembled to perform axial fine adjustment, and the driving adjustment mechanism is used for providing an adjustment power for the clamping mechanism 1.
The driving adjusting mechanism comprises a linear motion assembly and an angle fine-tuning connector 15, the angle fine-tuning connector 15 is connected with the linear motion assembly and the base 4, two ends of the clamping mechanism 1 are respectively hinged with the linear motion assembly and the base 4, and the linear motion assembly stretches and pushes the clamping mechanism 1 to rotate and adjust relative to the base 4. The drive adjustment mechanism, fixture 1, base 4 connects and forms triangle-shaped link structure, linear motion subassembly flexible regulation makes one of them connecting rod length change of triangle-shaped link structure, in the linear motion subassembly adjustment process, the contained angle between base 4 and fixture 1, the contained angle between fixture 1 and the linear motion subassembly, the contained angle between angle fine setting connector 15 and the base 4 is adjusted thereupon, base 4 is articulated with fixture 1, fixture 1 directly carries out angle modulation with the linear motion subassembly is articulated, angle modulation between angle fine setting connector 15 and the base 4 is realized for the deformation of angle fine setting connector 15 self.
Wherein, the angle fine-tuning connector 15 can be a coupling structure with an angle compensation function, such as a bellows coupling, a universal coupling, etc. The linear motion subassembly can select current structure that can the straight line flexible regulation, like telescopic link, cylinder, pneumatic cylinder, lead screw nut, rack and pinion etc..
This embodiment, drive adjustment mechanism, base 4 forms the link structure with the cooperation of fixture 1, drive adjustment mechanism telescopic adjustment drives the angle modulation at each connection position, realize fixture 1 and rotate the regulation for the fine setting of base 4, and then fixture 1 promotes and treats the adjustment part axial fine setting, wherein drive adjustment mechanism's angle modulation is realized through angle fine setting connector 15, moreover, the steam generator is simple in structure, low cost, easy and simple to handle, the regulation precision is high, the safety and stability of improve equipment, be applicable to the assembly of large-scale equipment, be particularly useful for the installation regulation of axial positioning parts such as space engine, turbojet engine, gas turbine.
Further, the linear motion assembly comprises a first connecting rod assembly and a second connecting rod assembly, one end of the first connecting rod assembly is connected with the angle fine adjustment connector 15, and the second connecting rod assembly is adjusted in a linear movement mode relative to the first connecting rod assembly. The linear motion assembly is a combined structure consisting of the first connecting rod assembly and the second connecting rod assembly, and is convenient to replace and disassemble.
The first connecting rod assembly and the second connecting rod assembly are various in connecting mode, preferably, the first connecting rod assembly and the second connecting rod assembly respectively comprise a screw rod and a nut which are matched, and the screw rod and the nut are adjusted in a linear movement mode. Specifically, the first connecting rod assembly comprises a first connecting rod 5, the first connecting rod 5 is a screw rod, the second connecting assembly comprises a nut, the nut is sleeved on the screw rod, the screw rod is connected to a driving device through an angle fine-adjustment connector 15, and the driving device is a driving motor 2, preferably a servo motor. The servo motor drives the screw rod to rotate, the screw rod drives the screw nut to linearly move,
the second connecting rod assembly moves linearly along with the screw nut, so that linear movement adjustment is realized. The angle fine-tuning connector 15 is preferably a corrugated pipe coupler, an output shaft of the servo motor is connected with the corrugated pipe coupler, and the corrugated pipe coupler is connected with a lead screw.
Wherein, the screw rod and the screw nut are preferably matched with a ball screw rod and a ball screw nut.
The shell of the driving motor 2 is fixedly connected with the base 4, the driving motor 2 is provided with a connecting seat 3, and the connecting seat 3 is fixedly connected with the base 4 through a bolt to realize the fixation of the driving motor 2. The mounting hole 17 has been seted up on the base 4, and the angle fine setting connector 15 runs through the mounting hole 17, and on the angle fine setting connector 15 ran through the mounting hole 17 and is connected to driving motor 2's output shaft, be equipped with the clearance between angle fine setting connector 15 and the mounting hole 17, make things convenient for angle fine setting connector 15 to carry out the angle modulation. Angle fine setting connector 15 is connected with base 4 through connecting seat 3 on driving motor 2, and 3 covers of connecting seat are detained on angle fine setting connector 15, play the effect of protection angle fine setting connector 15, and connecting seat 3 is preferred U type structure, and easy to assemble can play the isolation guard action around angle fine setting connector 15, can also be through the operating condition of two other direction observation angle fine setting connectors 15.
The bellows coupling allows angular deviation to exist, when the assembly system detection mechanism finds that the part to be adjusted has axis deflection, the servo motor drives the lead screw to rotate so as to enable the screw nut to move forwards or backwards along the axial direction of the lead screw, the second connecting rod 6 generates the same displacement due to being connected with the screw nut, and then the fourth connecting rod assembly connected to the base 4 is driven to overturn through the third connecting rod 7, so that the clamping mechanism 1 is overturned at a small angle, and then the clamping mechanism 1 drives the part to be adjusted to realize accurate fine adjustment of the angle, and the bellows coupling has the characteristics of radial compensation, angular deviation adjustment and axial deviation adjustment. The corrugated pipe coupler can be accurately adjusted in angular compensation, and corrugated pipe couplers of different specifications and models are selected according to the deviation adjusting range of a part to be adjusted so as to meet the requirement of the angle adjusting range. The angle adjusting range of the corrugated pipe coupler is preferably 0-2 degrees, the corrugated pipe coupler is suitable for axial adjustment of large-scale equipment such as an aerospace engine, a turbojet engine and a gas turbine, the adjusting precision is high, the application range is wide, and the assembling precision of the equipment is improved. In addition, other structures with angular deviation adjustment can also be used as the angle fine adjustment connector 15, such as a universal joint, and the application adjustment range of the angle fine adjustment connector 15 with different structures is different.
Furthermore, as shown in fig. 2, fig. 3 and fig. 7, the first link assembly is further connected to a guiding limiting seat 14, the guiding limiting seat 14 is rotatably connected to the fixing seat 13, the fixing seat 13 is fixedly connected to the base 4, and the first link 5 penetrates through the guiding limiting seat 14 and is connected to the angle fine-tuning connector 15. The guide limiting seat 14 is matched with the fixing seat 13 to limit and guide the first connecting rod 5, the effect of supporting and stabilizing the first connecting rod 5 is achieved, and the bearing capacity and stability of the first connecting rod assembly and the second connecting rod assembly in the adjusting process are guaranteed. When the angle fine-tuning connector 15 is used for angle adjustment, the first connecting rod 5 is inclined and adjusted along with the angle fine-tuning connector 15, the guide limiting seat 14 guides and supports the first connecting rod 5 which is inclined and adjusted, and the adjusting precision and the bearing capacity of the first connecting rod 5 are guaranteed.
The first connecting rod 5 penetrates through the guide limiting seat 14, a first bearing is arranged between the guide limiting seat 14 and the first connecting rod 5, the first bearing is preferably an angular contact ball bearing, and abrasion between the first connecting rod 5 and the guide limiting seat 14 is reduced. Specifically, fixing base 13 is equipped with two, and the both ends of the spacing seat 14 of direction are equipped with the minor axis, are equipped with the second bearing in the fixing base 13, and the minor axis is connected on the second bearing, guarantees the load power transmission, and the preferred radial ball bearing of second bearing realizes that the rotation between spacing seat 14 of direction and the fixing base 13 is connected, and reduces the friction between spacing seat 14 of direction and the fixing base 13, guarantees to adjust the precision. The fixing seat 13 is fixedly connected to the base 4 through bolts, so that the assembly and disassembly are convenient.
Further, as shown in fig. 2, 3 and 8, the second connecting rod assembly further includes a second connecting rod 6, the nut is fixedly connected with the second connecting rod 6 through the threaded holes arranged in a ring shape, the second connecting rod 6 includes a linear connecting groove 18 and a rotary connecting groove 19, the nut is connected in the linear connecting groove 18, and the third connecting rod 7 of the third connecting rod assembly is rotatably connected in the rotary connecting groove 19. The linear connecting groove 18 is perpendicular to the axial direction of the rotating connecting groove 19, the rotating connecting groove 19 is connected to the end or the center of the third connecting rod 7, a third bearing is arranged in the rotating connecting groove 19, the third connecting rod 7 is connected with the third bearing, the third bearing is preferably a radial ball bearing, the rotating adjusting precision of the third connecting rod 7 is guaranteed, and abrasion is reduced.
In addition, the second connecting rod 6 and the nut of the second connecting rod assembly can also be of an integrated special-shaped nut structure, and a rotating connecting groove 19 is directly formed in the nut and used for connecting the third connecting rod 7.
The third connecting rod assembly further comprises a second mounting seat 16, at least one second mounting seat 16 is connected to the third connecting rod 7, and the second mounting seat 16 is fixedly connected to the third connecting rod 7 and the clamping mechanism 1. Preferably, the rotating connecting groove 19 of the second connecting rod 6 is connected to the center of the third connecting rod 7, the two ends of the third connecting rod 7 are both connected with the second mounting seat 16, the second mounting seat 16 is fixedly connected with the clamping mechanism 1, and the structure of the third connecting rod assembly ensures the connection stability of the clamping mechanism 1 and the linear motion assembly.
The second mounting seat 16 of the third connecting rod assembly extends towards the direction close to the base 4, the clamping mechanism 1 is connected to one side, close to the base 4, of the second mounting seat 16, the connecting angle between the clamping mechanism 1 and the base 4 is reduced, the stress balance of the linear motion assembly is guaranteed, and the adjusting precision is improved.
The hinged structure of the base 4 and the clamping mechanism 1 can be a hinge structure, and the structure capable of being adjusted in a rotating mode in the existing structure can be the same.
The angular fine adjustment device of the clamping mechanism 1 is realized through a four-connecting-rod type action mechanism of servo motor-corrugated pipe coupler-lead screw-nut-hinged support, and further the angular fine adjustment is carried out on the part to be adjusted, which is clamped and fixed by the clamping mechanism 1.
Preferably, as shown in fig. 2 and 3, the base 4 is connected with a fourth connecting rod assembly, the fourth connecting rod assembly includes a fourth connecting rod 8 and a fourth supporting seat 9, the fourth supporting seat 9 is fixedly connected to the base 4, the fourth connecting rod 8 is rotatably connected in the fourth supporting seat 9, and the clamping mechanism 1 is connected with the fourth connecting rod 8. The fourth supporting seat 9 is at least provided with one, the two ends of the preferable fourth connecting rod 8 are respectively provided with the fourth supporting seat 9, a fourth bearing is connected in the fourth supporting seat 9, the fourth bearing is preferably a tapered roller bearing, and the stable rotation of the fourth connecting rod 8 and the fourth supporting seat 9 is ensured.
The fourth connecting rod 8 is at least connected with a first mounting seat 10, and the clamping mechanism 1 is connected with the fourth connecting rod 8 through the first mounting seat 10. Preferably, two ends of the fourth connecting rod 8 are respectively connected with a first mounting seat 10, and the first mounting seat 10 is disposed near the fourth supporting seat 9.
The third connecting rod 7 and the fourth connecting rod 8 are arranged in parallel, and the lengths of the third connecting rod 7 and the fourth connecting rod 8 are set according to requirements. Preferably, the length of the fourth link 8 is adapted to the size of the base 4 or the clamping mechanism 1, the center of the third link 7 is connected with the second link 6, the third link 7 extends to two sides of the second link 6, and the length of the third link 7 is smaller than that of the fourth link 8.
Preferably, as shown in fig. 2, 3 and 6, the base 4 is formed into a convex structure, the small end of the base 4 is used for connecting the driving adjusting mechanism, and the large end of the base 4 is used for connecting the clamping mechanism 1, so that the structural size and the equipment quality can be reduced, and the connection stability can be ensured. The convex small end of the base 4 is provided with a mounting hole 17 for the angle fine-tuning connector 15 to pass through and be connected with the first connecting rod 5; four through holes are respectively formed in two sides of the mounting hole 17, the two through holes are used for fixedly connecting the fixed seat 13, and the two through holes are used for fixedly connecting the connecting seat 3; two through holes are respectively formed in the lower left corner and the lower right corner of the base 4, so that the fourth supporting seat 9 is fixedly connected with the base 4.
Be connected with a plurality of reinforcing plates 11 and a plurality of strengthening rib 12 on base 4, strengthening rib 12 sets up in each edge of base 4, and reinforcing plate 11 plays the reinforcing support effect in the inside of base 4, strengthens the intensity of bottom plate, reduces because the deflection that the load effect produced. A groove is formed in the reinforcing plate 11 which is arranged to intersect with the fourth connecting rod 8, and a gap is formed between the fourth connecting rod 8 and the groove to prevent the reinforcing plate 11 from interfering with the rotation of the fourth connecting rod 8.
The shape of the base 4 may be various shapes such as a rectangle, a polygon, and a circle, and may be designed according to actual needs.
The clamping mechanism 1 is used for clamping and fixing the component to be adjusted, and the axis of the component to be adjusted is ensured to be synchronously adjusted along with the clamping mechanism 1. Furthermore, as shown in fig. 1, 2, and 9, the clamping mechanism 1 includes a clamping bottom plate 20 and a clamping jaw assembly 21, the clamping jaw assembly 21 is used for clamping the component to be adjusted, the clamping bottom plate 20 is connected to the linear motion assembly and the base 4, under the pushing action of the linear motion assembly, the clamping bottom plate 20 performs angle fine adjustment, the angle adjustment of the clamping bottom plate 20 drives the clamping jaw assembly 21 thereon to perform fine adjustment, and the clamping jaw assembly 21 drives the component to be adjusted to perform axial fine adjustment, so as to meet the requirement of assembly accuracy.
Clamping jaw assembly 21 is sliding connection on centre gripping bottom plate 20, and clamping jaw assembly 21 includes the first clamping jaw and the second clamping jaw of looks adaptation, but the interval slidable regulation of first clamping jaw and second clamping jaw, and then the size of the part of treating the regulation of clamping jaw assembly 21 centre gripping can be adjusted through sliding. The clamping bottom plate 20 is provided with a plurality of groups of clamping jaw assemblies 21, and the axial direction of the part to be adjusted is clamped and fixed in a multi-position mode, so that the fixing stability of the part to be adjusted is guaranteed.
Further, the clamping jaw assembly 21 further includes an adjusting drive 23, the adjusting drive 23 is used for providing sliding power for the first clamping jaw and the second clamping jaw, and the adjusting drive 23 may be a linear drive structure in which the driving motor 2 is matched with the screw rod nut. The clamping bottom plate 20 is connected with a guide sliding rail 22, the clamping jaw assembly 21 comprises a guide sliding groove matched with the guide sliding rail 22, and the guide sliding rail 22 is matched with the guide sliding groove to guide and limit the clamping jaw assembly 21 when the adjustment drive 23 drives the clamping jaw assembly 21 to slide.
In another embodiment of the linear motion assembly, when the linear motion assembly is of a cylinder or hydraulic cylinder type telescopic structure, one end of the linear motion assembly is connected with the angle fine adjustment connector 15, the other end of the linear motion assembly is connected with the clamping mechanism 1 in a rotating mode, the angle fine adjustment connector 15 is directly connected to the base 4, the clamping mechanism 1 is pushed to rotate through telescopic adjustment of the cylinder or the hydraulic cylinder, and the angle fine adjustment connector 15 is adjusted accordingly to achieve angular adjustment of the clamping mechanism 1.
The specific working process is as follows:
when the axis of the part to be adjusted deflects, an angular fine adjustment device is needed to realize angle adjustment so as to ensure that the axis of the workpiece which is not assembled is coincident with the axis of the workpiece which falls on the assembly position. The driving motor 2 rotates to drive the screw rod to rotate through the corrugated pipe coupler, and then the screw nut is displaced in the axial direction of the screw rod. The working principle of the fine adjustment mechanism is illustrated by taking the case that the nut axially moves along the direction away from the motor: the screw drives the second connecting rod 6 connected with the screw to move along the axial direction, and then drives the third connecting rod 7 to move along the axial direction, the third connecting rod 7 is matched with the two second mounting seats 16 connected to the clamping bottom plate 20, when parts on the screw rod all move along the axial direction, the clamping bottom plate 20 rotates along the second mounting seats 16 at a certain angle to meet the change of the axial distance, and the first mounting seat 10 also rotates along the axis of the fourth connecting rod 8 at a certain angle along with the rotation of the clamping bottom plate 20. When the clamping bottom plate 20 rotates, the fourth connecting rod assembly connected to the clamping bottom plate also rotates, the third connecting rod 7 has a determined position relation with the screw rod through the second connecting rod 6 and the nut, when the third connecting rod 7 moves downwards along with the clamping bottom plate 20, the screw rod has to bend downwards, the corrugated pipe coupling has the structural characteristic of angle deviation, the screw rod can be guaranteed to bend downwards, the guide limiting seat 14 on the screw rod also rotates, the axial position of the guide limiting seat 14 on the screw rod is not changed, the guide limiting seat 14 only rotates along with the screw rod, the guide limiting seat 14 rotates in the fixed seat 13 at a certain angle, a dead point position does not exist, and the device is guaranteed to run well.
The embodiment provides an angular fine adjustment device suitable for precision assembly, finely adjusts the coaxial alignment assembly process through the connecting rod type structure, can realize the angular fine adjustment of the part to be adjusted, is suitable for the assembly of large-scale equipment, is particularly suitable for the installation and adjustment of axial positioning parts such as an aerospace engine, a turbojet engine and a gas turbine, easily realizes the fine adjustment of the turning action, and has the advantages of simple and compact structure, convenient operation, strong load capacity and long service life.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An angular fine adjustment device is characterized by comprising a clamping mechanism, a driving adjustment mechanism and a base, wherein the driving adjustment mechanism comprises a linear motion assembly and an angle fine adjustment connector, two ends of the clamping mechanism are respectively hinged with the linear motion assembly and the base, the linear motion assembly moves linearly to drive the clamping mechanism to rotate relative to the base, the angle fine adjustment connector is connected with the linear motion assembly and the base, and the angle fine adjustment connector adjusts the connection angle of the linear motion assembly and the base to adapt to the rotation of the clamping mechanism; the linear motion assembly comprises a first connecting rod assembly and a second connecting rod assembly, the first connecting rod assembly is connected with the angle fine adjustment connector and the second connecting rod assembly, and the second connecting rod assembly is adjusted relative to the first connecting rod assembly in a linear movement mode.
2. The angular fine adjustment device according to claim 1, wherein the first link assembly comprises a first link rod, the first link rod is connected to the angular fine adjustment connector through a guide limiting seat, the guide limiting seat is rotatably connected in a fixed seat, and the fixed seat is fixedly connected to the base.
3. The angular fine-adjustment device according to claim 2, wherein the first link assembly and the second link assembly respectively comprise a screw rod and a nut which are matched with each other, the screw rod and the nut are adjusted in a linear movement manner, the angular fine-adjustment connector penetrates through the base to be connected with a driving device, and the driving device is connected with the base.
4. The angular fine-adjustment device according to claim 3, wherein the base has a mounting hole, the angle fine-adjustment connector extends through the mounting hole, the driving device has a connecting seat, the connecting seat is fixedly connected to the base, the connecting seat covers the angle fine-adjustment connector, and the angle fine-adjustment connector includes a bellows coupler.
5. The angular fine adjustment device according to claim 3, wherein the second link assembly further comprises a second link including a linear connection groove and a rotational connection groove, the nut is connected in the linear connection groove, and the clamping mechanism rotates relative to the rotational connection groove.
6. The angular fine adjustment device according to any one of claims 1 to 5, wherein the clamping mechanism comprises a clamping base plate and a clamping jaw assembly, the clamping base plate is connected with the linear motion assembly and the base, the clamping jaw assembly is slidably connected on the clamping base plate, and the clamping jaw assembly clamps the component to be adjusted.
7. The angular fine adjustment device according to any one of claims 1 to 5, wherein a third connecting rod assembly is connected to the clamping mechanism, the third connecting rod assembly comprises a third connecting rod and a second mounting seat, the third connecting rod is rotatably connected to the linear motion assembly, and the second mounting seat is fixedly connected to the third connecting rod and the clamping mechanism.
8. The angular fine adjustment device according to any one of claims 1 to 5, wherein a fourth connecting rod assembly is connected to the base, the fourth connecting rod assembly comprises a fourth connecting rod and a fourth support seat, the fourth support seat is fixedly connected to the base, the fourth connecting rod is rotatably connected to the inside of the fourth support seat, and the clamping mechanism is connected to the fourth connecting rod.
9. The angular fine adjustment device according to any one of claims 1 to 5, wherein the base is provided with a convex structure, and a plurality of reinforcing plates and a plurality of reinforcing ribs are connected to the base.
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| CN201910125777.3A CN109807894B (en) | 2019-02-20 | 2019-02-20 | Angular fine-adjustment device |
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| CN201910125777.3A CN109807894B (en) | 2019-02-20 | 2019-02-20 | Angular fine-adjustment device |
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| CN109807894A CN109807894A (en) | 2019-05-28 |
| CN109807894B true CN109807894B (en) | 2020-07-31 |
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|---|---|---|---|---|
| CN112171217B (en) * | 2019-07-04 | 2022-09-30 | 北京京东乾石科技有限公司 | Angle adjusting device |
| JP7145332B2 (en) * | 2019-07-12 | 2022-09-30 | 株式会社Fuji | Robot control system and robot control method |
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| CN202507035U (en) * | 2012-04-17 | 2012-10-31 | 中国航天科技集团公司第五研究院第五一八研究所 | Five-freedom-degree-overturning fine adjustment mechanism |
| TW201521943A (en) * | 2013-10-31 | 2015-06-16 | Hon Hai Prec Ind Co Ltd | Operation desk capble of adjusting angle |
| KR101887044B1 (en) * | 2016-12-29 | 2018-08-09 | 한전케이피에스 주식회사 | Apparatus for Large round cover Disassembly/Assembly |
| CN108098712A (en) * | 2017-11-13 | 2018-06-01 | 扬州市邗江金利德机械有限公司 | A kind of automobile component is accurately positioned assembling device |
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