CN210360207U

CN210360207U - Automatic adjusting mechanism

Info

Publication number: CN210360207U
Application number: CN201921013425.0U
Authority: CN
Inventors: 刘茂红
Original assignee: Shenzhen Liqi Precision Technology Co ltd
Current assignee: Shenzhen Liqi Precision Technology Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-04-21
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses an automatic guiding mechanism for adjusting screw and nut, this automatic guiding mechanism includes: the transmission case is provided with a containing cavity; the screw tightening structure comprises a screw cap tightening device and a screw rod tightening device which are coaxially arranged, the screw cap tightening device and the screw rod tightening device penetrate through the transmission case and are partially accommodated in the accommodating cavity, and part of the screw rod tightening device is rotatably arranged in the screw cap tightening device in a penetrating manner; the drive structure is arranged on the transmission case, the part of the drive structure is accommodated in the accommodating cavity, the drive structure comprises a first drive assembly and a second drive assembly which are arranged in parallel, the first drive assembly is in transmission connection with the nut tightening device, and the second drive assembly is in transmission connection with the screw tightening device. The utility model aims at providing an efficient automatic adjustment mechanism, the automatic adjustment of tuning screw rod on the specially adapted 5G communication base station wave filter.

Description

Automatic adjusting mechanism

Technical Field

The utility model relates to a wave filter screw adjustment equipment technical field, in particular to automatic guiding mechanism.

Background

The adjustment of screws on the existing filter can be completed only by separating and respectively moving two mechanisms of a screw rod and a nut, so that the efficiency of adjusting the screws on the filter is low.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic guiding mechanism, aims at providing an efficient automatic guiding mechanism of adjusting screw, the automatic adjustment of tuning screw on the specially adapted 5G communication base filter.

In order to achieve the above object, the utility model provides an automatic adjustment mechanism for adjusting screw and nut, automatic adjustment mechanism includes:

the transmission case is provided with a containing cavity;

the screw tightening structure comprises a screw cap tightening device and a screw rod tightening device which are coaxially arranged, the screw cap tightening device and the screw rod tightening device penetrate through the transmission case and are partially accommodated in the accommodating cavity, and part of the screw rod tightening device is rotatably arranged in the screw cap tightening device in a penetrating manner;

the drive structure is arranged on the transmission case, the part of the drive structure is accommodated in the accommodating cavity, the drive structure comprises a first drive assembly and a second drive assembly which are arranged in parallel, the first drive assembly is in transmission connection with the nut tightening device, and the second drive assembly is in transmission connection with the screw tightening device.

Further, the nut tightening apparatus includes:

the first rotating seat is provided with a first cavity, and one end of the first rotating seat is rotatably accommodated in the accommodating cavity and is in transmission connection with the first driving assembly;

the connecting pipe is connected to the other end of the first rotating seat and communicated with the first cavity; and

the nut tightening head is connected to one end, far away from the first rotating seat, of the connecting pipe and used for tightening a nut;

the part of the screw tightening device can rotatably penetrate through the first cavity, the connecting pipe and the nut tightening head in sequence, and the first driving assembly drives the first rotating seat to rotate relative to the screw tightening device, so that the connecting pipe and the nut tightening head are driven to rotate, and a nut is tightened or loosened.

Further, the first rotary base includes:

the first sleeve is provided with the first cavity, one end of the first sleeve is rotatably accommodated in the cavity, and the other end of the first sleeve penetrates through the transmission case and is connected with the connecting pipe; and

the first gear is sleeved at one end, accommodated in the accommodating cavity, of the first sleeve, and the first sleeve is in transmission connection with the first driving assembly through the first gear.

Further, the screw tightening device includes:

the second rotating seat is provided with a second cavity, one end of the second rotating seat can rotatably penetrate through the first cavity, and the other end of the second rotating seat is accommodated in the accommodating cavity and is in transmission connection with the second driving assembly;

the screw tightening head is slidably arranged in the second cavity, the first cavity, the connecting pipe and the nut tightening head in sequence in a penetrating manner and used for tightening the screw;

when the second driving assembly drives the second rotating seat to rotate relative to the first sleeve, the screw tightening head is driven to rotate, and a screw is tightened or loosened.

Further, the second rotary base includes:

the second sleeve is provided with the second cavity, one end of the second sleeve can rotatably penetrate through the first cavity, the other end of the second sleeve is accommodated in the accommodating cavity, and a sliding hole for communicating the accommodating cavity with the second cavity is formed in the second sleeve; and

the second gear is sleeved at one end, accommodated in the accommodating cavity, of the second sleeve and is arranged adjacent to the first gear, and the second sleeve is in transmission connection with the second driving assembly through the second gear;

the screw tightening head is accommodated at one end of the second cavity and is also provided with a sliding part, and the sliding part can slidably penetrate through the sliding hole and extend into the accommodating cavity.

Furthermore, the second rotating seat further comprises a sliding sleeve and a first spring, wherein the sliding sleeve and the first spring are slidably sleeved on the second sleeve, and two ends of the first spring are respectively elastically abutted against the sliding sleeve and the second gear;

the second sleeve surrounds the sliding hole to form a limiting plane, the sliding sleeve is provided with a butting plane corresponding to the limiting plane, and the sliding piece penetrates through the sliding hole and is in butt joint with one end, back to the first spring, of the sliding sleeve.

Further, the screw tightening head includes:

a connecting rod slidably received in the second cavity and the first cavity; and

the tightening head is connected to one end, accommodated in the first cavity, of the connecting rod, penetrates through the connecting pipe and the nut tightening head and can protrude out of one end, far away from the connecting pipe, of the nut tightening head;

the slider is including locating the connecting rod is kept away from the slide bar of tightening head one end and the disc of locating the slide bar both ends, the second sleeve pipe is seted up two relative settings the slide opening, the both ends of slide bar pass two respectively the slide opening, two the disc is spacing respectively in two slide opening department, and with the sliding sleeve dorsad the one end butt of first spring.

Furthermore, the screw tightening device further comprises a second spring sleeved at one end, far away from the tightening head, of the connecting rod, a limiting step is formed by the connecting rod close to the sliding rod, and two ends of the second spring are respectively in elastic abutting joint with the limiting step and the top wall of the second cavity.

Furthermore, the first driving assembly comprises a first driving piece, a first driving gear and a transmission gear which are arranged on the transmission box, an output shaft of the first driving piece extends into the containing cavity and is connected with the first driving gear, and the first driving gear is in transmission connection with the nut tightening device through the transmission gear;

and/or, the second drive assembly is including locating the second driving piece and the second drive gear of transmission case, the output shaft of second driving piece stretches into hold the intracavity, and with the second drive gear is connected, the second drive gear with screw tightening device transmission is connected.

Further, the automatic adjusting mechanism further comprises a height detection sensor, wherein the height detection sensor is arranged corresponding to the screw tightening device and used for detecting the ascending or descending height of the screw tightening device.

The automatic adjusting mechanism of the technical scheme of the utility model sets the nut tightening device and the screw tightening device into a coaxial structure, on one hand, the nut and the screw of the screw can be respectively adjusted by the nut tightening device and the screw tightening device, the screw adjusting efficiency is improved, on the other hand, the assembling space of the nut tightening device and the screw tightening device can be reduced; furthermore, the first driving assembly and the second driving assembly are arranged in the transmission box, and are in transmission connection with the nut screwing device and the screw screwing device respectively through the containing cavities of the transmission box, so that on one hand, the assembly size is reduced, the structure of the automatic adjusting mechanism is more compact, on the other hand, the transmission connection structure of the driving structure and the screwing structure is protected by the transmission box, and the service life of the automatic adjusting mechanism is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of an automatic adjustment mechanism of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the automatic adjustment mechanism of the present invention;

fig. 3 is a schematic structural view of the automatic adjusting mechanism without the transmission case according to an embodiment of the present invention;

fig. 4 is a schematic structural view of the second rotating base, the sliding sleeve and the first spring according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second sleeve according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a sliding sleeve according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a screw tightening head and a second spring according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a first rotating base according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a first driving gear according to an embodiment of the present invention;

fig. 10 is a schematic view of a part of the structure of the transmission case according to an embodiment of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied. In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an automatic guiding mechanism 100 for adjusting screw's screw rod and nut.

Referring to fig. 1, fig. 2, fig. 3 and fig. 10, in an embodiment of the present invention, the automatic adjustment mechanism 100 includes a transmission case 1, a tightening structure 2 and a driving structure 3, wherein the transmission case 1 has a cavity 1 a; the screwing structure 2 comprises a nut screwing device 21 and a screw screwing device 22 which are coaxially arranged, the nut screwing device 21 and the screw screwing device 22 penetrate through the transmission case 1 and are partially accommodated in the accommodating cavity 1a, and part of the screw screwing device 22 is rotatably arranged in the nut screwing device 21 in a penetrating manner; the driving structure 3 is arranged in the transmission case 1 and is partially accommodated in the accommodating cavity 1a, the driving structure 3 comprises a first driving component 31 and a second driving component 32 which are arranged in parallel, the first driving component 31 is in transmission connection with the nut tightening device 21, and the second driving component 32 is in transmission connection with the screw tightening device 22.

In the present embodiment, the transmission case 1 includes a base body 11, a cover plate 12, a first mounting cylinder 13 and a second mounting cylinder 14. Specifically, the base 11 is formed with an accommodating groove (not labeled), and the cover 12 covers a notch of the accommodating groove of the base 11, that is, the cover 12 and the base 11 enclose to form the accommodating cavity 1 a. The cover plate 12 is provided with a first through hole (not labeled) communicating with the accommodating cavity 1a, the bottom wall of the accommodating cavity of the seat body 11 is provided with a second through hole (not labeled) communicating with the accommodating cavity 1a, the first through hole and the second through hole are oppositely arranged, that is, the center of the first through hole and the center of the second through hole are on the same straight line. The first installation cylinder 13 is arranged at the first through hole and communicated with the accommodating cavity 1a through the first through hole, and the second installation cylinder 14 is arranged at the second through hole and communicated with the accommodating cavity 1a through the second through hole, i.e. the first installation cylinder 13 and the second installation cylinder 14 are coaxially arranged.

Optionally, the first mounting cylinder 13 and the second mounting cylinder 14 are both of a cylindrical structure with two open ends. The first installation cylinder 13 is detachably installed at the first through hole, that is, the first installation cylinder 13 and the cover plate 12 are detachably connected by means of snap connection, insertion fit, screw connection, pin connection or the like. The second mounting cylinder 14 is detachably mounted at the second through hole, that is, the second mounting cylinder 14 is detachably connected to the base 11 by means of a snap connection, a plug-in fit, a screw connection, a pin connection, or the like.

In the present embodiment, the nut screw 21 and the screw 22 of the tightening structure 2 are coaxially disposed. It can be understood that the nut screwing device 21 is arranged in the second mounting cylinder 14 in a penetrating manner, one end of the nut screwing device 21 is accommodated in the accommodating cavity 1a, and the other end of the nut screwing device 21 penetrates through the second mounting cylinder 14. In order to tighten or loosen the nut by the nut tightening device 21, the nut tightening device 21 can be rotated relative to the housing 11 and the second mounting cylinder 14 of the transmission case 1. Optionally, the transmission case 1 further includes a bearing disposed in the housing 11 and/or the second mounting cylinder 14, and the nut tightening device 21 is rotatably connected to the housing 11 and the second mounting cylinder 14 through the bearing.

In the present embodiment, one end of the screw tightening device 22 is inserted into the first mounting tube 13, and the other end of the screw tightening device 22 is inserted into the nut tightening device 21. In order to tighten or loosen the screw by the screw tightening device 22, the screw tightening device 22 can be rotated relative to the first mounting cylinder 13, the cover plate 12 and the nut tightening device 21 of the transmission housing 1. Optionally, the transmission case 1 further includes a bearing disposed in the cover plate 12 and/or the first mounting cylinder 13, and the screw tightening device 22 is rotatably connected with the cover plate 12 and the first mounting cylinder 13 through the bearing. Of course, bearings may also be provided in the nut runner 21, i.e. the screw runner 22 is rotatably connected to the nut runner 21 by means of bearings.

As will be appreciated, in order to drive the nut and

screw tightening devices

21 and 22 of the tightening structure 2, respectively, to achieve the adjustment of the nut and screw of the screw, respectively, in the present embodiment, the driving structure 3 comprises a first driving assembly 31 and a second driving assembly 32 arranged in parallel, the first driving assembly 31 being in driving connection with the nut tightening device 21, such that the first driving assembly 31 drives the nut tightening device 21 in rotation to tighten or loosen the nut, and the second driving assembly 32 being in driving connection with the screw tightening device 22, such that the second driving assembly 32 drives the screw tightening device 22 in rotation to tighten or loosen the screw.

The automatic adjustment mechanism 100 of the present invention sets the nut tightening device 21 and the screw tightening device 22 to be coaxial structures, so that on one hand, the nut tightening device 21 and the screw tightening device 22 can be used to adjust the nut and the screw of the screw, respectively, thereby improving the adjustment efficiency of the screw, and on the other hand, the assembly space of the nut tightening device 21 and the screw tightening device 22 can be reduced; further, the first driving assembly 31 and the second driving assembly 32 are arranged on the transmission case 1 and are in transmission connection with the nut screwing device 21 and the screw screwing device 22 through the accommodating cavity 1a of the transmission case 1, so that on one hand, the assembly volume is reduced, the structure of the automatic adjusting mechanism 100 is more compact, on the other hand, the transmission connection structure of the driving structure 3 and the screwing structure 2 is protected by the transmission case 1, and the service life of the automatic adjusting mechanism 100 is prolonged. The automatic adjustment mechanism 100 of the present invention is particularly suitable for automatic adjustment of tuning screws on filters of 5G communication base stations.

Further, as shown in fig. 2, 3 and 8, in the present embodiment, the nut runner 21 includes a first rotary seat 211, a coupling pipe 212 and a nut runner 213. Specifically, the first rotating seat 211 has a first cavity 2112, and one end of the first rotating seat 211 is rotatably accommodated in the cavity 1a and is in transmission connection with the first driving assembly 31; the connection pipe 212 is connected to the other end of the first rotating base 211 and is communicated with the first cavity 2112; a nut tightening head 213 is connected to an end of the connection pipe 212 remote from the first rotary base 211 for tightening a nut.

In the embodiment, a portion of the screw tightening device 22 is rotatably inserted through the first cavity 2112, the connecting tube 212 and the nut tightening head 213 in sequence, and the first driving assembly 31 drives the first rotating base 211 to rotate relative to the screw tightening device 22, so as to rotate the connecting tube 212 and the nut tightening head 213 to tighten or loosen the nut.

It is understood that the connection pipe 212 has a cylindrical structure with two open ends for connection and protection. As shown in fig. 2 and 3, one end of the connection pipe 212 is connected to the first rotary base 211, and the other end of the connection pipe 212 is connected to the nut runner 213. As shown in fig. 2, one end of the first rotating base 211 is accommodated in the accommodating cavity 1a of the transmission case 1, and the other end of the first rotating base 211 penetrates through the second mounting cylinder 14. In order to realize that nut tightening device 21 improves the installation steadiness for the rotating of pedestal 11 and second installation section of thick bamboo 14, transmission case 1 is still including locating the bearing in pedestal 11, and first roating seat 211 passes through the bearing and is connected with transmission case 1 rotation, and when first roating seat 211 and connecting pipe 212 worn to locate in second installation section of thick bamboo 14, there was the clearance between the outer wall of first roating seat 211 and connecting pipe 212 and the second installation section of thick bamboo 14.

Alternatively, the connection tube 212 is detachably connected to the first rotation seat 211, for example, a detachable connection manner such as a snap connection, a plug fit, a screw connection, or a pin connection is adopted. The nut runner 213 is detachably connected to the connection tube 212, for example, by a snap connection, a plug fit, a screw connection, or a pin connection.

Further, as shown in fig. 2 and 8, in the present embodiment, the first rotating base 211 includes a first sleeve 2111 and a first gear 2113, wherein the first sleeve 2111 has a first cavity 2112, one end of the first sleeve 2111 is rotatably received in the receiving cavity 1a, and the other end of the first sleeve 2111 penetrates through the transmission case 1 and is connected to the connecting pipe 212; the first gear 2113 is sleeved on one end of the first sleeve 2111 accommodated in the accommodating cavity 1a, and the first sleeve 2111 is in transmission connection with the first driving component 31 through the first gear 2113.

It is understood that the first sleeve 2111 has a cylindrical structure with two open ends, and the nut runner 213 has a hollow tubular structure, so that the screw tightening device 22 can be conveniently inserted into the first sleeve 2111, the connecting tube 212 and the nut runner 213, and a coaxial arrangement of the screw tightening device 22 and the nut runner 21 is realized.

Further, as shown in fig. 2, 3, 4 and 7, in the present embodiment, the screw tightening device 22 includes a second rotary base 221 and a screw tightening head 224, wherein the second rotary base 221 has a second cavity 2212, one end of the second rotary base 221 is rotatably disposed in the first cavity 2112, and the other end of the second rotary base 221 is accommodated in the accommodating cavity 1a and is in transmission connection with the second driving assembly 32; the screw tightening head 224 is slidably arranged in the second cavity 2212, the first cavity 2112, the connecting pipe 212 and the nut tightening head 213 in sequence, and is used for tightening the screw; when the second driving assembly 32 drives the second rotating seat 221 to rotate relative to the first sleeve 2111, the screw tightening head 224 is driven to rotate, so as to tighten or loosen the screw.

In this embodiment, one end of the second rotating seat 221 is disposed through the first mounting cylinder 13, the other end of the second rotating seat 221 is disposed through the first cavity 2112, and a portion of the second rotating seat 221 between the first mounting cylinder 13 and the first cavity 2112 is in transmission connection with the second driving assembly 32. It can be understood that, in order to improve the installation stability while the screw tightening device 22 rotates relative to the cover plate 12, the first installation cylinder 13 and the first sleeve 2111 of the transmission case 1, bearings are arranged in the first installation cylinder 13 and the first sleeve 2111, and two ends of the second rotating seat 221 are respectively connected with the first installation cylinder 13 and the first sleeve 2111 through the bearings in a rotating manner.

In this embodiment, the second rotating base 221 has a second cavity 2212, one end of the screw tightening head 224 is slidably disposed in the second cavity 2212, and the other end of the screw tightening head 224 slidably passes through the first cavity 2112, the connecting tube 212 and the nut tightening head 213 in sequence, so that the screw tightening head 224 and the nut tightening head 213 are conveniently coaxially disposed. Slidably disposing the screw tightening head 224 within the second cavity 2212, the first cavity 2112, the coupling tube 212, and the nut tightening head 213 may cause the screw tightening head 224 to raise and lower relative to the nut tightening head 213, thereby enabling the automatic adjustment mechanism 100 to selectively adjust the screw and/or nut of the screw using the screw tightening head 224 and/or the nut tightening head 213.

Further, as shown in fig. 2, fig. 3, fig. 4 and fig. 5, in the present embodiment, the second rotating base 221 includes a second sleeve 2211 and a second gear 2216, specifically, the second sleeve 2211 has a second cavity 2212, one end of the second sleeve 2211 is rotatably disposed in the first cavity 2112, and the other end of the second sleeve 2211 is accommodated in the accommodating cavity 1a and is provided with a sliding hole 2213 communicating the accommodating cavity 1a and the second cavity 2212; the second gear 2216 is sleeved on one end of the second sleeve 2211 accommodated in the accommodating cavity 1a and is arranged adjacent to the first gear 2113, and the second sleeve 2211 is in transmission connection with the second driving assembly 32 through the second gear 2216; the screw tightening head 224 is further provided with a sliding member 2241 at one end received in the second cavity 2212, and the sliding member 2241 slidably passes through the sliding hole 2213 and extends into the accommodating cavity 1 a.

It will be appreciated that the second sleeve 2211 is a cylindrical structure with two open ends, which facilitates the slidable insertion of the screw head 224 into the second sleeve 2211, such that the screw head 224 and the nut head 213 are coaxially disposed. By providing the sliding hole 2213 on the second sleeve 2211 to connect the receiving cavity 1a and the second cavity 2212 and providing the sliding member 2241 on the screw tightening head 224, when the second driving assembly 32 drives the second gear 2216 to rotate the second sleeve 2211, the second sleeve 2211 can drive the sliding member 2241 and the screw tightening head 224 to rotate through the sliding hole 2213 to tighten or loosen the screw, and the screw tightening head 224 can also move up and down relative to the second sleeve 2211 along the sliding hole 2213 through the sliding member 2241.

Further, as shown in fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, in the present embodiment, the second rotating base 221 further includes a sliding sleeve 222 and a first spring 223 slidably sleeved on the second sleeve 2211, and two ends of the first spring 223 elastically abut against the sliding sleeve 222 and the second gear 2216, respectively; the second sleeve 2211 surrounds the sliding hole 2213 to form a limiting plane 2214, the sliding sleeve 222 is provided with an abutting plane 2221 corresponding to the limiting plane 2214, and the sliding element 2241 passes through the sliding hole 2213 to abut against one end of the sliding sleeve 222, which is back to the first spring 223.

It can be understood that by providing the limit plane 2214 on the second sleeve 2211 and the abutment plane 2221 in the sliding sleeve 222, the sliding sleeve 222 cannot rotate circumferentially relative to the second sleeve 2211 by the limit abutment of the limit plane 2214 and the abutment plane 2221, and can move up and down along the axial direction of the second sleeve 2211.

In the present embodiment, by providing the sliding sleeve 222 and the first spring 223, when the screw of the screw tightening head 224 adjusting screw is jammed, the screw tightening head 224 stops moving upward, so that the sliding member 2241 of the screw tightening head 224 abuts on the sliding sleeve 222 to press the sliding sleeve 222, thereby compressing the first spring 223, and the protection of the screw tightening device 22 is achieved by the elastic force of the first spring 223.

Further, as shown in fig. 1, 2 and 3, in the present embodiment, the automatic adjustment mechanism 100 further includes a height detection sensor 4, and the height detection sensor 4 is provided corresponding to the screw tightening device 22 and detects the height of the screw tightening device 22 that is raised or lowered.

It is understood that the height detecting sensor 4 is used to detect the height of the screw tightening head 224 moving up and down along the second sleeve 2211, so that when the screw of the adjusting screw of the screw tightening head 224 is jammed, the screw tightening head 224 stops moving up, and when the height detecting sensor 4 detects the jam, the height can be quickly determined and maintained and checked.

Specifically, as shown in fig. 2, 4, 5 and 6, in the present embodiment, an annular table 2215 is formed on an outer wall of the second sleeve 2211, a limit table 2222 is convexly disposed on an inner wall of the sliding sleeve 222 adjacent to one end of the first spring 223, when the sliding sleeve 222 is sleeved on the second sleeve 2211, the annular table 2215 is accommodated in the sliding sleeve 222, and the limit table 2222 is located between the annular table 2215 and the first spring 223, that is, two ends of the first spring 223 elastically abut against the limit table 2222 and the second gear 2216, respectively. When the first spring 223 is in the extended state, the limit table 2222 is in limit abutment with the ring table 2215; when the sliding member 2241 of the screw tightening head 224 presses the sliding sleeve 222, the sliding sleeve 222 moves down along the second sleeve 2211 to compress the first spring 223, so that the stop table 2222 is separated from the ring table 2215.

Further, as shown in fig. 2, 5 and 7, in the present embodiment, the screw tightening head 224 includes a connecting rod 2244 and a tightening head 2246, and in particular, the connecting rod 2244 is slidably received in the second cavity 2212 and the first cavity 2112; a tightening head 2246 is coupled to an end of the connecting rod 2244 received in the first cavity 2112, and the tightening head 2246 passes through the coupling tube 212 and the nut tightening head 213 and may protrude from an end of the nut tightening head 213 remote from the coupling tube 212.

In this embodiment, the sliding member 2241 includes a sliding rod 2242 disposed at one end of the connecting rod 2244 far from the tightening head 2246 and a circular disc 2243 disposed at two ends of the sliding rod 2242, the second sleeve 2211 is opened with two sliding holes 2213 oppositely disposed, two ends of the sliding rod 2242 respectively pass through the two sliding holes 2213, and the two circular discs 2243 are respectively limited at the two sliding holes 2213 and abut against one end of the sliding sleeve 222 facing away from the first spring 223.

It will be appreciated that by providing the second sleeve 2211 with the sliding hole 2213 and the stop plane 2214 surrounding the sliding hole 2213, the abutment plane 2221 is provided in the sliding sleeve 222, and the slide bar 2242 and the circular disc 2243 are provided on the connecting bar 2244, so that the sliding sleeve 222 can achieve the circumferential stop and the axial up-and-down movement of the sliding sleeve 222 in the second sleeve 2211 by the cooperation of the abutment plane 2221 and the stop plane 2214. The connecting rod 2244 and the tightening head 2246 slide relative to the second sleeve 2211, the first sleeve 2111, the connecting tube 212 and the nut tightening head 213 by utilizing the gaps between the connecting rod 2244 and the tightening head 2246 and the second cavity 2212, the first cavity 2112, the connecting tube 212 and the nut tightening head 213, and pass through the two sliding holes 2213 through the sliding rod 2242 of the sliding member 2241, so that the two circular discs 2243 are respectively limited at the two sliding holes 2213 and abut against one end of the sliding sleeve 222, which faces away from the first spring 223, so that the sliding rod 2242, the connecting rod 2244 and the tightening head 2246 are driven to rotate when the second sleeve 2211 and the sliding sleeve 222 rotate. As tightening head 2246 tightens or loosens the screw, tightening head 2246 moves connecting rod 2244 up and down relative to second sleeve 2211, first sleeve 2111, connecting tube 212 and nut tightening head 213, so that slide bar 2242 slides along slide hole 2213. Optionally, the slide aperture 2213 is a strip-shaped aperture or a kidney-shaped aperture.

Further, as shown in fig. 2 and 7, in the present embodiment, the screw tightening device 22 further includes a second spring 225 sleeved on an end of the connecting rod 2244 far from the tightening head 2246, the connecting rod 2244 is formed with a limiting step 2245 adjacent to the sliding rod 2242, and two ends of the second spring 225 are elastically abutted against the limiting step 2245 and a top wall of the second cavity 2212, respectively.

It will be appreciated that the second spring 225 is arranged such that when the tightening head 2246 is tightening or loosening the screw, the second spring 225 prevents the tightening head 2246 from being forced by the second sleeve 2211 to damage the screw. At the same time, the second spring 225 also acts as a buffer, avoiding damage to the tightening head 2246 and the second sleeve 2211.

Further, as shown in fig. 1, fig. 2, fig. 3, fig. 8 and fig. 9, in the present embodiment, the first driving assembly 31 includes a first driving member 311 disposed on the transmission case 1, a first driving gear 312 and a transmission gear 313, an output shaft of the first driving member 311 extends into the receiving cavity 1a and is connected to the first driving gear 312, and the first driving gear 312 is in transmission connection with the nut tightening device 21 through the transmission gear 313.

It is understood that the first driving member 311 may be a driving motor or an electric batch, etc., an output shaft of the first driving member 311 extends into the receiving cavity 1a through the cover plate 12, and the output shaft of the first driving member 311 is connected with the first driving gear 312. In order to realize firm installation and prevent slow-witted, the output shaft of first driving piece 311 is provided with spacing arch, first drive gear 312 is including installation department and the gear portion that is equipped with the mounting groove, it is provided with spacing recess to correspond spacing arch in the mounting groove of installation department, when the output shaft of first driving piece 311 is connected with first drive gear 312, the output shaft of first driving piece 311 holds in the mounting groove of installation department, and spacing arch holds and is spacing in spacing recess.

Alternatively, the outer wall of the gear part is provided with a plurality of teeth arranged at intervals, and the first driving gear 312 is meshed with the transmission gear 313 through the teeth of the gear part. It is understood that the transmission gear 313 is engaged with the first gear 2113 of the first rotating seat 211, so that when the first driving member 311 drives the first driving gear 312 to rotate, the first driving gear 312 drives the first gear 2113 and the first rotating seat 211 to rotate through the transmission gear 313.

Further, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, in the present embodiment, the second driving assembly 32 includes a second driving member 321 and a second driving gear 322 which are disposed on the transmission case 1, an output shaft of the second driving member 321 extends into the cavity 1a and is connected to the second driving gear 322, and the second driving gear 322 is in transmission connection with the screw tightening device 22.

It can be understood that the second driving element 321 can be a driving motor or an electric motor, an output shaft of the second driving element 321 extends into the cavity 1a through the cover plate 12, the output shaft of the second driving element 321 is connected to the second driving gear 322, and the second driving gear 322 is engaged with the second gear 2216 of the second rotating base 221, so that when the second driving element 321 drives the second driving gear 322 to rotate, the second driving gear 322 drives the second gear 2216 and the second rotating base 221 to rotate.

The utility model discloses an automatic adjustment mechanism 100 is through setting up second spring 225 in screw rod tightening device 22 for screw rod tightening device 21 and screw rod tightening device 22 are elastic at the direction of height, can not make nut and screw rod in-process at adjusting screw cause the product to warp, thereby influence the adjustment precision. By providing the sliding sleeve 222 and the first spring 223 on the second sleeve 2211 of the screw tightening device 22, such that the sliding sleeve 222 and the first spring 223 cooperate with the second spring 225 to constitute a bite detection mechanism for the screw tightening head 224, the tightening head 2246 is prevented from being jammed with the screw or nut of the screw during rotation of the screw tightening device 22. By arranging the height detection sensor 4, the height of the screwed rod can be detected in real time by using the height detection sensor 4, and a closed-loop control system is formed by the height detection sensor 4 and the second driving piece 321 which drives the tightening head 2246 to rotate, so that high-precision depth control is realized. By setting the nut tightening device 21 and the screw tightening device 22 to be coaxial structures and arranging the first driving component 31 and the second driving component 32 of the driving structure 3 in one transmission case 1, the automatic adjusting mechanism 100 is compact in structure and high in adjusting precision, and does not damage the product quality, and meanwhile, the adjusting efficiency of the automatic adjusting mechanism 100 can be improved.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic adjustment mechanism for adjusting a screw and a nut, the automatic adjustment mechanism comprising:

the transmission case is provided with a containing cavity;

2. The automatic adjustment mechanism of claim 1, wherein said nut tightening device comprises:

3. The automatic adjustment mechanism of claim 2, wherein said first rotating mount comprises:

4. The automatic adjustment mechanism of claim 3, wherein said screw tightening device comprises:

when the second driving assembly drives the second rotating seat to rotate relative to the first sleeve, the screw tightening head is driven to rotate, and the screw is tightened or loosened.

5. The automatic adjustment mechanism of claim 4, wherein said second rotating mount comprises:

6. The automatic adjusting mechanism of claim 5, wherein the second rotating base further comprises a sliding sleeve slidably sleeved on the second sleeve and a first spring, and two ends of the first spring are elastically abutted with the sliding sleeve and the second gear respectively;

7. The automatic adjustment mechanism of claim 6, wherein said screw tightening head comprises:

8. The automatic adjustment mechanism of claim 7, wherein said screw tightening device further comprises a second spring sleeved on an end of said connecting rod away from said tightening head, said connecting rod forming a limit step adjacent to said sliding rod, both ends of said second spring being elastically abutted against said limit step and a top wall of said second cavity, respectively.

9. The automatic adjusting mechanism of any one of claims 1 to 7, wherein the first driving assembly comprises a first driving member, a first driving gear and a transmission gear, the first driving member is disposed in the transmission case, an output shaft of the first driving member extends into the accommodating cavity and is connected with the first driving gear, and the first driving gear is in transmission connection with the nut tightening device through the transmission gear;

10. The automatic adjustment mechanism of claim 9, further comprising a height detection sensor provided corresponding to the screw tightening device for detecting a height at which the screw tightening device is raised or lowered.