Four-direction floating precision adjustment mechanism

Abstract

The application relates to the technical field of precision adjusting mechanisms, and particularly provides a four-direction floating precision adjusting mechanism which comprises a base, the inside of the base is hollow, a connecting disc is arranged in the base, the connecting disc is connected with a mounting disc, the mounting disc is located above the base, a first adjusting disc and a second adjusting disc are arranged at the lower end of the connecting plate, an adjusting cylinder is coaxially arranged in the base, a damping disc is rotationally arranged at the bottom of the adjusting cylinder, a triangular groove is arranged at the center of the damping disc, a convex part on the first adjusting disc is slidably abutted in the triangular groove, when a new batch of parts is replaced and the first part is installed, the first adjusting disc and the second adjusting disc have positions different from the moving direction of the last batch of parts, so that the damping disc is rotated by a large amplitude, when the same batch of parts is subsequently assembled, the parts are not adjusted by a large amplitude, the overall wear degree of the parts is reduced, and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of precision adjustment mechanism, in particular to a four-direction floating precision adjustment mechanism. BACKGROUND

[0002] Multi-direction precision adjustment mechanism refers to a precision device that can be fine-tuned in multiple directions, commonly used in applications requiring high-precision positioning, such as optical instruments, precision machinery, etc. This structure usually uses flexible materials and precision machining technology to achieve 360-degree rotation and small linear movement.

[0003] For example, Chinese patent CN211289294U discloses a high-precision mounting seat, which includes a mounting seat, the side ends of the mounting seat are provided with dovetail grooves, the dovetail grooves are slidably provided with dovetail blocks, the upper end of the upper dovetail block is fixedly connected with a mounting plate, the side ends of the mounting seat are provided with clamping mechanisms, the clamping mechanisms include L-shaped fixed plates, the fixed plates are fixedly connected with the side ends of the mounting seat, and the inner walls of the fixed plates are fixedly connected with a plurality of clamping springs. After the precision instrument is installed on the mounting plate, the rotating bolt at the side end of the mounting seat is twisted, the mounting plate moves away from the rotating bolt, and the clamping spring is in a compressed state. By twisting the rotating bolt, the position of the precision instrument can be fine-tuned. When the position needs to be adjusted in multiple directions, two rotating bolts can be twisted to fine-tune the position of the precision instrument in four directions.

[0004] However, the above-mentioned scheme will cause friction to the precision instrument during adjustment, and if the external force is too large, it will cause the wear and tear of the precision instrument parts to increase. SUMMARY

[0005] Therefore, it is necessary to provide a four-direction floating precision adjustment mechanism to solve the problem of large wear and tear of parts during adjustment of the current adjustment mechanism.

[0006] The above-mentioned purpose is achieved by the following technical scheme:

[0007] A four-direction floating precision adjustment mechanism, comprising:

[0008] A base, the base is hollow inside, a connecting disc is arranged inside the base, the connecting disc is coaxially connected with a mounting disc at the center position, the mounting disc is arranged coaxially with the connecting disc and extends out of the base and is located above the base;

[0009] A regulating cylinder is coaxially arranged with the base, is located inside the base and wraps the connecting disc, a first damping assembly is arranged between the outer periphery of the regulating cylinder and the inner wall of the base, which can provide floating damping for the rotation of the regulating cylinder, a second damping assembly is arranged between the upper and lower end faces of the regulating cylinder and the upper and lower end faces of the base, which can provide floating damping for the up and down movement of the upper and lower ends of the regulating cylinder;

[0010] A first adjusting disc is coaxially and fixedly arranged at the lower end face of the connecting disc, and a second adjusting disc is slidingly arranged at the lower end face of the first adjusting disc, and the lower end face of the second adjusting disc is slidingly arranged at the bottom of the regulating cylinder, and the sliding directions of the first adjusting disc and the second adjusting disc are perpendicular to each other;

[0011] A damping disc is rotationally arranged at the inner bottom face of the regulating cylinder and coaxial with the regulating cylinder, an axially elastically flexible protrusion is arranged on the lower end of the first adjusting disc, the protrusion is slidingly abutted on the upper end face of the damping disc, a triangular groove is opened on the upper end face of the damping disc, and the three corners of the triangular groove are uniformly distributed, and the protrusion is located in the triangular groove.

[0012] Further, a first sliding block is arranged on the lower end face of the first adjusting disc, a first sliding groove extending along the radial direction is opened on the upper end face of the second adjusting disc, the first sliding block is located in the first sliding groove, a second sliding block is arranged on the lower end face of the second adjusting disc, and a second sliding groove extending along the radial direction is opened on the upper end face of the bottom of the regulating cylinder, the second sliding block is located in the second sliding groove, and the first sliding groove and the second sliding groove are perpendicular to each other.

[0013] Further, an adjusting assembly is arranged at the rotation connection between the damping disc and the inner bottom face of the regulating cylinder, which can adjust the friction of the rotation of the damping disc.

[0014] Further, the adjusting assembly comprises a friction plate and an elastic abutting rod, the friction plate is arranged at the bottom of the damping disc, the elastic abutting rod is screw-connected at the bottom of the regulating cylinder, one end of the elastic abutting rod abuts against the friction plate, and the rotation of the elastic abutting rod can adjust the abutting force.

[0015] Further, the first damping assembly comprises a marble and an elastic member, the marble is located at the outer periphery of the regulating cylinder and can radially expand and contract along the regulating cylinder, the elastic member is located at the connection between the marble and the regulating cylinder, an annular groove is opened on the inner wall of the base, a plurality of pressing grooves are opened at the bottom of the annular groove, the elastic member abuts the marble in the pressing groove, and the rotation of the regulating cylinder can drive the marble to move in the annular groove.

[0016] Further, the second damping assembly comprises an upper adjusting ring and a lower adjusting ring, the upper adjusting ring is arranged on the upper end surface of the adjusting cylinder in the axial direction of the adjusting cylinder, the lower end surface of the upper adjusting ring is in contact with the upper end surface of the connecting disc, the upper end surface of the upper adjusting ring is in elastic abutment with the upper end of the inner part of the base, and the lower adjusting ring is arranged on the lower end surface of the adjusting cylinder in the axial direction of the adjusting cylinder, the upper end surface of the lower adjusting ring is in contact with the lower end surface of the connecting disc, and the lower end surface of the lower adjusting ring is in elastic abutment with the lower end of the inner part of the base.

[0017] Further, the upper end surface of the upper adjusting ring and the lower end surface of the lower adjusting ring are both provided with telescopic rods, the telescopic rods are provided with compression springs in the outer periphery, and the other end of the telescopic rods is inserted into the upper and lower end surfaces of the inner part of the base.

[0018] Further, the upper adjusting ring and the lower adjusting ring are both provided with balls between the mounting disc.

[0019] Further, the upper and lower end surfaces of the inner part of the base are both provided with rotating bearings, and the telescopic rods on the upper adjusting ring and the lower adjusting ring are connected with the rotating bearings of the upper and lower end surfaces.

[0020] Further, the inner side walls of the upper and lower ends of the base are provided with limiting grooves, limiting plates are arranged in the limiting grooves, and the limiting plates are in abutment with the rotating bearings.

[0021] The beneficial effects of the present application are:

[0022] The present application has the beneficial effects that:

[0023] The present application has the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1A structural schematic view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application;

[0025] Figure 2 A front view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application; Figure 1

[0026] Figure 3 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along A-A; Figure 2

[0027] Figure 4 A partial enlarged view of the U part of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application; Figure 3

[0028] Figure 5 A partial enlarged view of the V part of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application; Figure 3

[0029] Figure 6 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B; Figure 2

[0030] A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B; Figure 7

[0031] A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B; Figure 8

[0032] A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B; Figure 9 Figure 8 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B;

[0033] Figure 10 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B;

[0034] Figure 11 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B;

[0035] Figure 12 A sectional view of the four-direction floating precision adjustment mechanism provided in an embodiment of the present application along B-B; Figure 11

[0036]

[0037] ​​​​​​​100, base; 110, annular groove; 120, pressing groove; 130, first through groove; 140, rotating bearing; 150, mounting disc; 160, connecting rod; 170, connecting disc; 180, ball;

[0038] 200, first adjusting disc; 210, first sliding block; 220, accommodating groove; 230, second adjusting disc; 240, first sliding groove; 250, bearing disc; 260, second sliding groove; 270, protrusion;

[0039] 300, upper adjusting ring; 310, lower adjusting ring; 320, rolling groove; 330, second through groove; 340, third through groove; 350, damping disc; 351, triangular groove; 360, ring plate; 370, ring groove; 380, friction plate; 390, abutting screw;

[0040] 400, adjusting cylinder; 410, sliding groove; 420, marble; 430, elastic member; 450, telescopic rod; 460, abutting ring; 470, limiting groove; 480, limiting plate. DETAILED DESCRIPTION

[0041] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0042] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "on", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower than the second feature in horizontal height.

[0044] The present application provides a four-direction floating precision adjustment mechanism. Figures 1-12 The present application provides a four-direction floating precision adjustment mechanism.

[0045] A four-direction floating precision adjustment mechanism, comprising a base 100, the base 100 is used to connect a mechanical arm (not shown in the figure), the mechanical arm drives the base 100 to move, the inside of the base 100 is hollow, and a connecting disc 170 is arranged in the inside of the base 100, an installation disc 150 is arranged at the center position of the connecting disc 170, the installation disc 150 and the connecting disc 170 are fixedly connected through a connecting rod 160, the axis of the installation disc 150 coincides with that of the connecting disc 170, a first through slot 130 is formed in the upper end of the base 100, the connecting rod 160 passes through the first through slot 130, and the installation disc 150 extends out of the base 100 and is connected with a part (not shown in the figure) that needs to be precisely matched, the mechanical arm can drive the base 100 to move, and the installation disc 150 on the base 100 drives the part that needs to be precisely matched to move close to the position where it needs to be installed, during the assembly process of the part and the installation position, there will be assembly errors, so it is necessary to adjust the position of the part when it is installed, so that the part can be precisely matched during installation, therefore, an adjusting cylinder 400 is coaxially arranged in the base 100, the adjusting cylinder 400 wraps the connecting disc 170, the adjusting cylinder 400 can rotate relative to the inner wall of the base 100, and a first damping assembly is further arranged between the adjusting cylinder 400 and the base 100, the first damping assembly can generate floating damping effect when the adjusting cylinder 400 rotates, and second damping assemblies are arranged on the upper and lower end faces of the adjusting cylinder 400, the second damping assemblies can also generate floating damping effect when the upper and lower ends of the adjusting cylinder 400 move up and down, so that the part has a moving space during the assembly process, instead of being tightly clamped to cause the part to be unable to move and damaged.

[0046] The first adjusting disc 200 is coaxial and fixedly connected to the lower end surface of the connecting disc 170, and the second adjusting disc 230 is slidingly connected to the lower end surface of the first adjusting disc 200, the lower end surface of the second adjusting disc 230 is slidingly arranged at the bottom of the adjusting cylinder 400, and the sliding directions of the first adjusting disc 200 and the second adjusting disc 230 are perpendicular to each other, so that the connecting disc 170 can move in the X direction and the Y direction, and can move up and down through the upper and lower ends of the adjusting cylinder 400, thereby enabling the connecting disc 170 to move in the Z direction, and the connecting disc 170 can also rotate around its own axis, thereby realizing the adjustment of the mounting disc 150 in the X, Y, Z and rotation directions, and accurately assembling the parts to reduce the damage of the parts.

[0047] However, in the process of adjusting the direction, if the force triggering the adjustment in four directions is too large, it will cause wear of mechanical parts, and if the triggering force is too small, it may be easily disturbed by external interference such as vibration or impact during the adjustment process, thereby causing shaking and further aggravating the damage of the parts.

[0048] Therefore, the adjusting cylinder 400 is provided with a damping disc 350 at the bottom, a triangular groove 351 is formed at the center of the damping disc 350, the center of the triangular groove 351 is the deepest, the three corners of the triangular groove 351 are evenly distributed and the depths of the three corners are shallower, a protrusion 270 capable of axial elastic expansion is arranged at the center of the first adjusting disc 200, the head of the protrusion 270 is spherical, the protrusion 270 penetrates through the second adjusting disc 230 and abuts against the triangular groove 351 of the damping disc 350, in the initial state, the protrusion 270 is located at the center of the triangular groove 351, when the parts on the mounting disc 150 are installed, the force caused by the assembly error can push the mounting disc 150 to adjust in the X and Y directions, that is, when adjusting, the first adjusting disc 200 and the second adjusting disc 230 move, so that the protrusion 270 capable of axial elastic expansion on the first adjusting disc 200 slides in the triangular groove 351 of the damping disc 350, if the sliding direction of the protrusion 270 is from the center of the triangular groove 351 to one of the corners, at this time, the damping disc 350 does not rotate, if the sliding direction of the protrusion 270 is not from the center of the triangular groove 351 to one of the corners, when the protrusion 270 slightly moves in the triangular groove 351, the damping disc 350 is pushed to rotate, when the damping disc 350 rotates, the first adjusting disc 200 and the second adjusting disc 230 move and the resistance is large, but when assembling parts, they are assembled in batches, the assembly error of each batch of parts is similar, so when assembling the same batch of parts, the rotating amplitude of the damping disc 350 is reduced, only when a new batch of parts is replaced and the first part is installed, the first adjusting disc 200 and the second adjusting disc 230 have a position different from the moving direction of the last batch of parts, that is, only when adjusting for the first time, the wear of the parts is large, and when adjusting subsequently, the adjustment amplitude is not large, so that the overall wear of the parts is reduced and the assembly efficiency is improved.

[0049] If the damping disc 350 is not arranged, when installing the same batch of parts, it is assumed that the assembly error of the parts is large, so that the adjustment amplitude of the first adjusting disc 200 and the second adjusting disc 230 is large each time the parts are assembled, and the reset amplitude of the first adjusting disc 200 and the second adjusting disc 230 is also large each time the parts are assembled, so that the wear of the parts is increased and the service life is reduced, and through the arrangement of the damping disc 350, the distance required for resetting the first adjusting disc 200 and the second adjusting disc 230 when installing the first part of the same batch is reduced, so that the reset amplitude is small when assembling subsequently, because the arrangement of the damping disc 350 reduces the large moving distance to a small moving distance, so that the wear degree of the parts can be effectively reduced.

[0050] It should be noted that the protrusion 270 capable of axial elastic expansion in the embodiment is arranged at the center of the first adjusting disc 200, the first adjusting disc 200 is provided with a receiving groove 220, the receiving groove 220 extends to the lower end surface of the connecting disc 170, the protrusion 270 is arranged in the receiving groove 220 in an axial sliding manner, one end of the protrusion 270 in the receiving groove 220 is fixedly connected with a compression spring, the other end of the compression spring is fixedly connected with the protrusion 270, and the other end of the compression spring is connected to the bottom of the receiving groove 220. When the protrusion 270 is subjected to an acting force, it will move axially in the receiving groove 220.

[0051] Specifically, in order to realize that the sliding directions of the first adjusting disc 200 and the second adjusting disc 230 are perpendicular to each other, two first sliding blocks 210 are fixedly arranged on the lower end surface of the first adjusting disc 200, the two first sliding blocks 210 are symmetrically arranged about the center of the circle of the first adjusting disc 200, two first sliding grooves 240 extending along the radial direction of the second adjusting disc 230 are arranged on the upper end surface of the second adjusting disc 230, the two first sliding grooves 240 are symmetrically arranged about the center of the circle of the second adjusting disc 230, the first sliding block 210 is located in the first sliding groove 240, so that the first adjusting disc 200 can slide relative to the second adjusting disc 230; two second sliding blocks (not shown in the figure) are fixedly arranged on the lower end surface of the second adjusting disc 230, the two second sliding blocks are symmetrically arranged about the center of the circle of the second adjusting disc 230, two second sliding grooves 260 extending along the radial direction of the second adjusting disc 230 are arranged on the bottom surface in the adjusting cylinder 400, the two second sliding grooves 260 are symmetrically arranged about the center of the circle of the bottom surface of the adjusting cylinder 400, the second sliding block is located in the second sliding groove 260, and the first sliding groove 240 and the second sliding groove 260 are perpendicular to each other, so that the first adjusting disc 200 and the second adjusting disc 230 can move the mounting disc 150 in the X and Y directions when sliding.

[0052] It should be noted that, as Figure 9 , Figure 10 and Figure 11As shown, in order to facilitate the installation of the first adjusting disc 200 and the second adjusting disc 230, the second adjusting disc 230 and the bottom of the adjusting cylinder 400 are both composed of two semicircular plates in the embodiment, the two semicircular plates are connected into a whole by screws, and the first slider 210 and the second slider are both set as trapezoidal sliders, the trapezoidal sliders are fixedly connected to the end of the first adjusting disc 200 and the second adjusting disc 230 as a narrower end face, and the end of the trapezoidal sliders away from the first adjusting disc 200 and the second adjusting disc 230 is a wider end face, and the cross section of the first sliding groove 240 and the second sliding groove 260 is set as a trapezoidal shape, the first sliding groove 240 and the second sliding groove 260 with the trapezoidal cross section are matched with the first slider 210 and the second slider respectively, so that the first adjusting disc 200 and the second adjusting disc 230 and the bottom of the second adjusting disc 230 and the adjusting cylinder 400 cannot produce relative axial movement, and the first sliding groove 240 and the second sliding groove 260 are arranged at the connection of the two semicircular plates, when installing, the first slider 210 or the second slider can be first installed in the first sliding groove 240 or the second sliding groove 260 of one half, and then the other semicircular plate is connected to form a complete first sliding groove 240 or second sliding groove 260, so that the first slider 210 and the second slider are conveniently installed in the first sliding groove 240 or the second sliding groove 260.

[0053] In a further embodiment, the damping disc 350 is provided with an adjusting assembly at the rotating connection with the inner bottom surface of the adjusting cylinder 400, the adjusting assembly can adjust the friction of the rotating of the damping disc 350, so as to adjust the floating damping degree when the first adjusting disc 200 and the second adjusting disc 230 move, it can be understood that if the assembly error of the parts is large, the friction of the rotating of the damping disc 350 can be appropriately reduced by the adjusting assembly, so as to reduce the wear degree of the damping disc 350, and at the same time, the wear of the parts can be reduced, if the assembly error of the parts is small, the friction of the rotating of the damping disc 350 can be appropriately increased by the adjusting assembly, so as to prevent the shaking phenomenon in the adjusting process caused by the small trigger force, so as to improve the assembly accuracy of the parts.

[0054] Specifically, the adjusting assembly in the embodiment includes a friction plate 380 and an elastic abutting rod, in order to facilitate the rotating connection of the damping disc 350, Figure 10 and Figure 11As shown, the second through groove 330 is arranged at the bottom of the adjusting cylinder 400, and the bearing disc 250 is fixedly connected to the lower end surface of the second through groove 330 by screws. The bearing disc 250 is composed of two semicircular discs, and the second sliding groove 260 is arranged on the bearing disc 250. The two semicircular discs of the bearing disc 250 are connected to form the second sliding groove 260, so that the second sliding block of the second adjusting disc 230 can be slidingly fitted in the second sliding groove 260. The third through groove 340 is arranged at the center of the bearing disc 250, and the damping disc 350 is rotatably connected in the third through groove 340. Specifically, the ring groove 370 is arranged on the side wall of the third through groove 340, and the ring plate 360 is coaxially and fixedly arranged on the outer periphery of the damping disc 350. The ring plate 360 is rotatably connected in the ring groove 370. The damping disc 350 is rotatably connected in the third through groove 340 through the ring plate 360. The friction plate 380 is arranged at the lower end surface of the ring plate 360. The friction plate 380 is in frictional contact with the ring plate 360. The elastic abutting rod is screwedly connected in the ring groove 370 and can abut against the lower end surface of the friction plate 380. By rotating the elastic abutting rod, the force of the elastic abutting rod on the friction plate 380 can be changed, so that the friction between the friction plate 380 and the ring plate 360 can be adjusted, and the rotational friction of the damping disc 350 can be adjusted.

[0055] More specifically, as shown in Figure 3 and Figure 5 The elastic abutting rod includes the abutting screw rod 390 and the compression spring. The abutting screw rod 390 is screwedly connected in the ring groove 370. The compression spring is arranged between the abutting screw rod 390 and the friction plate 380 and presses the friction plate 380. When the abutting screw rod 390 rotates, it can move in the axial direction and change the force of the compression spring on the friction plate 380.

[0056] In further embodiments, the first damping assembly of the present application comprises a marble 420 and a spring 430, the outer periphery of the adjusting cylinder 400 is provided with a plurality of radially extending sliding grooves 410, the marble 420 is slidingly arranged in the sliding grooves 410, and the spring 430 is located in the sliding grooves 410, one end of the spring 430 is fixedly connected in the sliding grooves 410, and the other end of the spring 430 is fixed on the marble 420. It should be noted that the spring 430 in the present application is a compression spring, which pushes the marble 420 to extend outwardly in the sliding grooves 410, and an annular groove 110 is formed on the inner wall of the base 100, a plurality of pressing grooves 120 cooperating with the marble 420 are formed at the bottom of the annular groove 110, the pressing grooves 120 are spherical concave grooves, the head of the marble 420 is a spherical protrusion, and the two cooperate with each other. When the adjusting cylinder 400 rotates about its own axis, the marble 420 can be pulled out of the pressing grooves 120 and moved into the annular groove 110, and when the adjusting cylinder 400 rotates to pull the marble 420 out of the pressing grooves 120, resistance is generated, thereby avoiding the rotation of the adjusting cylinder 400 in the base 100 without resistance, and thereby providing floating damping for the rotation of the adjusting cylinder 400, thereby improving the accuracy of the rotation of the adjusting cylinder 400.

[0057] It should be noted that since the first adjusting disc 200 is fixedly arranged at the lower end surface of the connecting disc 170, the first sliding block 210 on the first adjusting disc 200 is slidingly fitted in the first sliding groove 240 on the second adjusting disc 230, and the second sliding block on the second adjusting disc 230 is slidingly fitted in the second sliding groove 260 at the bottom of the adjusting cylinder 400, that is, in the second sliding groove 260 formed by the bearing disc 250, and the bearing disc 250 is fixedly connected to the lower end of the adjusting cylinder 400 by screws, so when the connecting disc 170 rotates, it can drive the adjusting cylinder 400 to rotate, and the marble 420 and the spring 430 on the outer periphery of the adjusting cylinder 400 and the pressing grooves 120 on the inner wall of the base 100 can provide floating damping for the rotation of the adjusting cylinder 400.

[0058] In further embodiments, the second damping assembly of the present application comprises an upper adjusting ring 300 and a lower adjusting ring 310, the upper adjusting ring 300 is slidingly arranged in the upper end of the adjusting cylinder 400, that is, the top of the adjusting cylinder 400, and the upper adjusting ring 300 can move in the axial direction of the adjusting cylinder 400, the lower end surface of the upper adjusting ring 300 can contact the upper end surface of the connecting disc 170, and the upper end surface of the upper adjusting ring 300 elastically abuts against the upper end inside the base 100; while the lower adjusting ring 310 is slidingly arranged at the lower end of the adjusting cylinder 400, that is, the bottom of the adjusting cylinder 400, and the lower adjusting ring 310 can also move in the axial direction of the adjusting cylinder 400, the upper end surface of the lower adjusting ring 310 can contact the lower end surface of the connecting disc 170, and the lower end surface of the lower adjusting ring 310 elastically abuts against the lower end inside the base 100.

[0059] It should be noted that the bottom of the adjusting cylinder 400 is provided with the second through groove 330 in the foregoing embodiment, and the bearing disc 250 is fixedly arranged at the bottom of the adjusting cylinder 400 by means of screws, that is, the second through groove 330 is arranged on the lower adjusting ring 310, and the bearing disc 250 is fixedly arranged on the lower adjusting ring 310 by means of screws.

[0060] It can be understood that when the parts on the mounting disc 150 are subjected to pressure or tension during assembly, the mounting disc 150 can push or pull the connecting disc 170 to move, because the upper and lower end faces of the connecting disc 170 are in abutment with the upper adjusting ring 300 and the lower adjusting ring 310 at this time, as shown in the figure, if the mounting disc 150 pulls the connecting disc 170, the connecting disc 170 will move upward, and the upper end face of the connecting disc 170 pushes the upper adjusting ring 300, because the upper end face of the upper adjusting ring 300 is in elastic abutment with the upper end inside the base 100, so the upper adjusting ring 300 can give the connecting disc 170 an upward moving reaction force, thereby playing a floating damping role; similarly, if the mounting disc 150 pushes the connecting disc 170, the connecting disc 170 will move downward, and the lower end face of the connecting disc 170 pushes the lower adjusting ring 310, because the lower end face of the lower adjusting ring 310 is in elastic abutment with the lower end inside the base 100, so the lower adjusting ring 310 can give the connecting disc 170 a downward moving reaction force, thereby also playing a floating damping role. Figure 3 It should be noted that, in order to realize the function that the upper end face of the upper adjusting ring 300 and the lower end face of the lower adjusting ring 310 are in elastic abutment with the upper and lower end faces of the base 100, the upper end face of the upper adjusting ring 300 and the lower end face of the lower adjusting ring 310 in the embodiment are both provided with telescopic rods 450, the outer periphery of the telescopic rod 450 is sleeved with a compression spring, and the other end of the telescopic rod 450 is inserted into the upper and lower end faces of the base 100, because the telescopic rod 450 is inserted and arranged, the upper adjusting ring 300 and the lower adjusting ring 310 are also arranged to be rotatable relative to the adjusting cylinder 400, and the purpose of this arrangement is to prevent the telescopic rod 450 from affecting the rotation of the adjusting cylinder 400.

[0061] In a further embodiment, in order to reduce the wear between the upper and lower end faces of the connecting disc 170 and the upper adjusting ring 300 and the lower adjusting ring 310, a rolling groove 320 is arranged on the lower end face of the upper adjusting ring 300 and the upper end face of the lower adjusting ring 310, and a rolling ball 180 is arranged in the rolling groove 320, the rolling ball 180 is in rolling contact with the upper and lower end faces of the connecting disc 170, thereby reducing the wear between the upper and lower end faces of the connecting disc 170 and the upper adjusting ring 300 and the lower adjusting ring 310, thereby increasing the service life of the upper adjusting ring 300, the lower adjusting ring 310 and the connecting disc 170.

[0062]

[0063] ​In further embodiments, in order to further reduce the wear of the parts, while reducing the wear of the upper adjusting ring 300 and the lower adjusting ring 310, a rotating bearing 140 is arranged at the upper and lower ends inside the base 100, and a contact ring 460 is coaxially and interference-fitted at the bottom of the rotating bearing 140, and the telescopic rod 450 is inserted on the contact ring 460, so that when the connecting disc 170 rotates, the adjusting cylinder 400 can be driven to rotate, and at this time, the upper adjusting ring 300 and the lower adjusting ring 310 can further reduce the wear when rotating through the rotating bearing 140.

[0064] Specifically, in order to facilitate the connection of the rotating bearing 140, a limiting groove 470 is formed on the inner side wall of the upper and lower ends of the base 100, and a limiting plate 480 is arranged in the limiting groove 470 to prevent the rotating bearing 140 from falling off.

[0065] The specific working process of the four-direction floating precision adjusting mechanism provided by the application is described in combination with the above embodiments:

[0066] Installation:

[0067] The base 100 is fixedly installed on a mechanical arm (not shown in the figure), and the parts (not shown in the figure) to be assembled are connected to the mounting disc 150, the mechanical arm drives the base 100 to move, and the mounting disc 150 on the base 100 drives the parts to be assembled to move to the assembly position.

[0068] Assembly:

[0069] The mechanical arm pushes the base 100, and the parts on the mounting disc 150 of the base 100 gradually approach the assembly position, and if the parts do not have assembly errors, they can be directly installed to the assembly position; if the parts have assembly errors and the assembly errors are large, during the pushing process of the base 100, the parts generate a force with the assembly position, which can drive the parts to move, and the parts drive the mounting disc 150 to move, and the mounting disc 150 drives the connecting disc 170 to move synchronously through the connecting rod 160.

[0070] Rotating adjustment:

[0071] If the force makes the parts rotate, the connecting disc 170 drives the adjusting cylinder 400 to rotate in the base 100, and the marbles 420 and the elastic members 430 between the outer periphery of the adjusting cylinder 400 and the inner wall of the base 100 can play the role of floating damping, so that the parts can be accurately installed to the assembly position after rotating to the appropriate position, and can be automatically reset after being taken out.

[0072] Up and down adjustment (Z-direction adjustment):

[0073] If the force makes the part move up or down, the connecting disc 170 moves up or down in the base 100 through the upper adjusting ring 300 or the lower adjusting ring 310, the telescopic rod 450 on the upper adjusting ring 300 or the lower adjusting ring 310 can provide floating damping so that the part can be accurately put into the assembly position and automatically reset after being taken out.

[0074] Front and back and left and right adjustment (X and Y direction adjustment):

[0075] If the force makes the part move in the front and back and left and right direction, the first adjusting disc 200 and the second adjusting disc 230 move through the first sliding groove 240 and the second sliding groove 260, if the moving direction is just from the center of the triangular groove 351 to one of the corners, the damping disc 350 does not need to rotate, if the moving direction is not from the center of the triangular groove 351 to one of the corners but other directions, the protrusion 270 on the first adjusting disc 200 will push the damping disc 350 to rotate so that the moving direction is from the center of the triangular groove 351 to one of the corners, after the adjustment is completed, when assembling other parts, since it is the same batch of parts, the assembly error is similar, so in the subsequent assembly process, the rotation amplitude of the damping disc 350 is very small, thereby reducing the wear of the first adjusting disc 200 and the second adjusting disc 230, and further reducing the wear of the parts.

[0076] It should be noted that the above adjustment direction process can occur simultaneously, individually or in combination of multiple situations.

[0077] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0078] The above described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A four-direction floating precision adjustment mechanism, characterized by, The utility model relates to a kind of adjustable height base, including: Base, the base inside hollow, the connecting disc is arranged in the base, the mounting disc is connected with the center position of the connecting disc, the mounting disc is coaxially arranged with the connecting disc, the mounting disc protrudes the base and is located above the base; Adjusting cylinder, the adjusting cylinder is coaxially arranged with the base, the adjusting cylinder is located inside the base and is wrapped in the connecting disc, the first damping component is arranged between the outer periphery of the adjusting cylinder and the inner wall of the base, the first damping component can provide the floating damping of the rotation of the adjusting cylinder, the second damping component is arranged between the upper and lower end surfaces of the adjusting cylinder and the upper and lower end surfaces of the base interior, and the second damping component can provide the floating damping of the up and down movement of the upper and lower ends of the adjusting cylinder; First adjusting disc and second adjusting disc, the first adjusting disc is coaxially and fixedly arranged on the lower end surface of the connecting disc, the second adjusting disc is slidably arranged on the lower end surface of the first adjusting disc, and the lower end surface of the second adjusting disc is slidably arranged on the bottom of the adjusting cylinder. The sliding direction of the first adjusting disc and the second adjusting disc is perpendicular to each other.

2. The four-direction floating precision adjustment mechanism according to claim 1, characterized by, Damping disc, the damping disc is rotatably arranged on the inner bottom surface of the adjusting cylinder and coaxial with the adjusting cylinder, the first adjusting disc is provided with an axially elastic protrusion on the lower end, the protrusion is slidably abutted on the upper end surface of the damping disc, the upper end surface of the damping disc is provided with a triangular groove, and the three corners of the triangular groove are uniformly distributed.

3. The four-direction floating precision adjustment mechanism according to claim 1, characterized by, The protrusion is located in the triangular groove.

4. The four-direction floating precision adjustment mechanism according to claim 3, characterized by, The first adjusting disc is provided with a first sliding block on the lower end surface, the second adjusting disc is provided with a first sliding groove extending in the radial direction on the upper end surface, the first sliding block is located in the first sliding groove, the second adjusting disc is provided with a second sliding block on the lower end surface, the second sliding groove extending in the radial direction is formed on the upper end surface of the bottom of the adjusting cylinder, and the second sliding block is located in the second sliding groove.

5. The four-direction floating precision adjustment mechanism according to claim 1, wherein The first sliding groove and the second sliding groove are perpendicular to each other. The damping disc and the inner bottom surface of the adjusting cylinder are rotatably connected, and the adjusting assembly is arranged at the connection position. The adjusting assembly includes a friction plate and an elastic abutting rod, the friction plate is arranged on the bottom of the damping disc, the elastic abutting rod is screw-connected on the bottom of the adjusting cylinder, one end of the elastic abutting rod abuts against the friction plate, and the elastic abutting rod can adjust the abutting force by rotating. The first damping component includes a marble and an elastic member, the marble is located on the outer periphery of the adjusting cylinder and can be radially expanded and contracted, the elastic member is located at the connection position of the marble and the adjusting cylinder, an annular groove is formed in the inner wall of the base, a plurality of pressing grooves are formed in the bottom of the annular groove, the elastic member abuts against the marble in the pressing groove, and the adjusting cylinder rotates to drive the marble to move in the annular groove.

6. The four-direction floating precision adjustment mechanism according to claim 1, wherein The second damping assembly comprises an upper adjusting ring and a lower adjusting ring, the upper adjusting ring is arranged on the upper end surface of the adjusting cylinder in the axial direction of the adjusting cylinder, the lower end surface of the upper adjusting ring is in contact with the upper end surface of the connecting disc, the upper end surface of the upper adjusting ring is in elastic abutment with the upper end of the inner part of the base, and the lower adjusting ring is arranged on the lower end surface of the adjusting cylinder in the axial direction of the adjusting cylinder, the upper end surface of the lower adjusting ring is in contact with the lower end surface of the connecting disc, and the lower end surface of the lower adjusting ring is in elastic abutment with the lower end of the inner part of the base.

7. The four-direction floating precision adjustment mechanism according to claim 6, wherein The upper end surface of the upper adjusting ring and the lower end surface of the lower adjusting ring are both provided with telescopic rods, the outer periphery of the telescopic rods is provided with compression springs, and the other end of the telescopic rods is inserted into the upper and lower end surfaces of the inner part of the base.

8. The four-direction floating precision adjustment mechanism according to claim 6, wherein The upper adjusting ring and the lower adjusting ring are both provided with balls between the mounting disc.

9. The four-direction floating precision adjustment mechanism according to claim 6, wherein The upper and lower end surfaces of the inner part of the base are both provided with rotating bearings, and the telescopic rods on the upper adjusting ring and the lower adjusting ring are connected with the rotating bearings of the upper and lower end surfaces respectively.

10. The four-direction floating precision adjustment mechanism according to claim 9, wherein The inner side walls of the upper and lower end parts of the base are provided with limiting grooves, limiting plates are arranged in the limiting grooves, and the limiting plates are in abutment with the rotating bearings.

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