Screw locking and removing mechanism and screw machine having the same

Abstract

The present invention discloses a screw locking and dismantling mechanism and a screw machine having the same. The screw locking and dismantling mechanism includes an electric screwdriver, a positioning sleeve and an elastic member; the positioning sleeve includes a fixed sleeve and a telescopic sleeve, one end of the electric screwdriver is connected to a screw rod, the fixed sleeve is hollow inside and fixed on one side of the electric screwdriver, and the fixed sleeve is sleeved on the outside of the screw rod; a through hole is formed inside the telescopic sleeve to pass the screw rod, one end of the telescopic sleeve can be telescopically inserted into the fixed sleeve, and is detachably connected to the fixed sleeve; the elastic member is arranged inside the fixed sleeve, and is used to provide an elastic restoring force for the telescopic sleeve to move away from the electric screwdriver. The screw locking and dismantling mechanism of the present invention can replace the elastic member in a faster way, thereby improving the efficiency of the screw locking operation.

Description

Technical Field

[0001] The invention relates to the technical field of screw installation and removal equipment, in particular to a screw locking and removal mechanism and a screw machine having the same. Background Art

[0002] In the related art, the screw locking and removing mechanism includes an electric screwdriver, a screwdriver rod, a suction nozzle and a positioning sleeve, wherein the positioning sleeve is used to position the screwdriver rod, and the positioning sleeve includes a fixed sleeve and a telescopic sleeve telescopically arranged in the fixed sleeve, the suction nozzle is arranged at the end of the telescopic sleeve away from the electric screwdriver, and an elastic member is arranged in the fixed sleeve, and the elastic member can assist the telescopic sleeve and the suction nozzle to press the screw to be locked; according to the different specifications of the screws, the auxiliary clamping force required when locking the screws will also be different, so different elastic members need to be replaced according to different screws, however, this type of screw locking and removing mechanism is more troublesome when replacing the spring, which will affect the efficiency of the screw locking operation to a certain extent. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a screw locking and disassembling mechanism, which can replace the elastic member in a faster way, thereby improving the efficiency of the screw locking operation.

[0004] The invention also provides a screw machine having the screw locking and removing mechanism.

[0005] According to the first aspect of the present invention, the screw locking and disassembly mechanism includes an electric screwdriver, a positioning sleeve and an elastic member; the positioning sleeve includes a fixed sleeve and a telescopic sleeve, one end of the electric screwdriver is connected to a screw rod, the fixed sleeve is hollow inside and fixed to one side of the electric screwdriver, and the fixed sleeve is sleeved on the outside of the screw rod; a through hole is formed inside the telescopic sleeve to pass the screw rod, one end of the telescopic sleeve can be telescopically inserted into the fixed sleeve, and is detachably connected to the fixed sleeve; the elastic member is arranged inside the fixed sleeve, and is used to provide an elastic restoring force for the telescopic sleeve to move away from the electric screwdriver.

[0006] The screw locking and disassembly mechanism according to the first aspect of the present invention has at least the following beneficial effects:

[0007] In this embodiment, since the telescopic sleeve is slidably connected to the fixed sleeve in a detachable manner, when the elastic part needs to be replaced, it is only necessary to remove the telescopic sleeve from the fixed sleeve to take out and replace the elastic part without removing the entire positioning sleeve. Therefore, the replacement of the elastic part is faster and also helps to improve the efficiency of the screw tightening operation.

[0008] According to some embodiments of the first aspect of the present invention, the screw locking and disassembly mechanism also includes a first adjusting nut, which is threadedly connected to the end of the fixed sleeve away from the electric screwdriver, a first protrusion structure is provided on the outer side of the telescopic sleeve, a second protrusion structure is formed on the inner side of the first adjusting nut, and the first protrusion structure is located between the second protrusion structure and the end face of the fixed sleeve.

[0009] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a slot is provided on the outer side of the telescopic sleeve, and the first protruding structure is a retaining ring that is engaged in the slot.

[0010] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, the second protrusion structure is an annular boss arranged on the inner side of the first adjusting nut.

[0011] According to some embodiments of the first aspect of the present invention, the screw locking and disassembly mechanism further includes a second adjusting nut, which is threadedly connected to one end of the fixed sleeve that is threadedly connected to the first adjusting nut.

[0012] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a retractable elastic pin is arranged on the outer side of the telescopic sleeve, and a slide groove extending along the axial direction is arranged on the fixed sleeve. The elastic pin is clamped in the slide groove. When the elastic pin is retracted into the telescopic sleeve, the elastic pin can be disengaged from the slide groove.

[0013] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a third protrusion structure is provided on the inner side of the fixed sleeve near the end of the electric screwdriver, and the end of the elastic member away from the telescopic sleeve abuts against the third protrusion structure.

[0014] According to some embodiments of the first aspect of the present invention, the screw locking and disassembly mechanism further includes a pressure sensor, which is located inside the fixed sleeve and between the elastic member and the telescopic sleeve.

[0015] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a first accommodating cavity is formed at one end of the telescopic sleeve inserted into the fixed sleeve, and one end of the pressure sensor and the elastic member are arranged in the first accommodating cavity.

[0016] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a second accommodating chamber is provided at the end of the telescopic sleeve away from the fixed sleeve, a through hole connects the first accommodating chamber and the second accommodating chamber, a first locating bearing and a second locating bearing are respectively installed in the first accommodating chamber and the second accommodating chamber, and the screw rod passes through the first locating bearing and the second locating bearing.

[0017] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a vacuum joint communicating with the interior of the second accommodating chamber is provided on the telescopic sleeve, and a suction nozzle is detachably connected to the opening of the second accommodating chamber.

[0018] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, the second positioning bearing is a sealed bearing.

[0019] According to some embodiments of the first aspect of the present invention, the screw locking and disassembly mechanism also includes a tightening nut threadedly connected to the end of the telescopic sleeve away from the fixed sleeve, one end of the suction nozzle is inserted into the second accommodating cavity, and a fourth protrusion structure is provided on the outer side of the suction nozzle, and the tightening nut is provided with a fifth protrusion structure to press the fourth protrusion structure against an end surface of the telescopic sleeve.

[0020] According to some embodiments of the screw locking and disassembly mechanism of the first aspect of the present invention, it also includes a ventilation sleeve, which is arranged in the second accommodating cavity, one end of the ventilation sleeve abuts against the second positioning bearing, and the suction nozzle abuts against the other end of the ventilation sleeve.

[0021] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, the suction nozzle and the telescopic sleeve are clamped together by a clamping block and a rotating clamping groove that cooperate with each other.

[0022] According to some embodiments of the first aspect of the present invention, the screw locking and removing mechanism further includes a flow meter, which is arranged on the vacuum pipe connected to the vacuum joint.

[0023] According to some embodiments of the first aspect of the present invention, the screw locking and disassembly mechanism also includes an electric screwdriver mounting base for fixing the electric screwdriver, the electric screwdriver mounting base includes a base body and a plurality of clamping blocks, a plurality of semicircular first grooves are formed on the base body, and a semicircular second groove is provided on the clamping block. The clamping block is detachably connected to the base body, and the second groove is opposite to the first groove to form an annular groove for clamping the electric screwdriver.

[0024] According to some embodiments of the screw locking and disassembly mechanism of the first aspect of the present invention, the screw locking and disassembly mechanism further includes a sleeve mounting seat, the sleeve mounting seat is connected to the electric screwdriver mounting seat, and the fixed sleeve is connected to the sleeve mounting seat.

[0025] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, a flange is provided at the end of the fixed sleeve close to the electric screwdriver, a first mounting hole is provided on the flange, and a second mounting hole corresponding to the first mounting hole is provided on the sleeve mounting seat, and the fixed sleeve is connected to the sleeve mounting seat by screws correspondingly penetrated through the first mounting hole and the second mounting hole.

[0026] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, the sleeve mounting seat is hollow, the screw rod and the electric screwdriver are detachably connected, the screw rod passes through the sleeve mounting seat, and the connecting part between the screw rod and the electric screwdriver is located in the sleeve mounting seat, and an opening is arranged on the side of the sleeve mounting seat, and the opening can allow hands or disassembly tools to enter the sleeve mounting seat to release the connection between the screw rod and the electric screwdriver.

[0027] According to the screw locking and disassembly mechanism of some embodiments of the first aspect of the present invention, the sleeve mounting seat is detachably connected to the electric screwdriver mounting seat by screws.

[0028] According to some embodiments of the second aspect of the present invention, the screw machine includes the screw locking and removing mechanism of the embodiment of the first aspect mentioned above.

[0029] The screw machine according to some embodiments of the second aspect of the present invention has at least the following beneficial effects: since the screw locking and disassembling mechanism of the first aspect is adopted, when locking screws of different specifications, it is only necessary to remove the telescopic sleeve from the fixed sleeve, and then take out and replace the elastic part, so that the screw locking and disassembling mechanism can quickly adapt to the operating requirements of screws of different specifications, which is beneficial to improving the efficiency of the screw locking operation.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 It is a structural schematic diagram of a screw locking and disassembling mechanism according to an embodiment of the present invention from a side view;

[0033] Figure 2 For screw locking and disassembly mechanism Figure 1 A cross-sectional view in the AA direction is shown;

[0034] Figure 3 for Figure 2 A partial schematic diagram of the connection structure between the vacuum joint, the suction nozzle and the telescopic sleeve shown in FIG;

[0035] Figure 4 for Figure 3 A partial enlarged view of the area shown in B. Description of the drawings:

[0037] Electric screwdriver 100, screwdriver rod 110, fixed sleeve 200, third protrusion structure 210, third positioning bearing 220, flange 230, second adjusting nut 240, telescopic sleeve 300, first protrusion structure 310, first accommodating cavity 320, second accommodating cavity 330, first positioning bearing 340, second positioning bearing 350, ventilation sleeve 360, elastic member 370, pressure sensor 380, first adjusting nut 390, second protrusion structure 391, vacuum joint 400, suction nozzle 500, fourth protrusion structure 510, countersunk hole 520, tightening nut 600, fifth protrusion structure 610, electric screwdriver mounting seat 700, connecting plate 711, fixing plate 712, pressing block 720, sleeve mounting seat 800, opening 810. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] The following is the attached Figure 1 To Attachment Figure 4 , describing the screw locking and disassembly mechanism of the first embodiment of the present invention.

[0043] Reference Figure 1 and Figure 2The screw locking and disassembly mechanism of this embodiment includes an electric screwdriver 100, a positioning sleeve and an elastic member 370; the positioning sleeve includes a fixed sleeve 200 and a telescopic sleeve 300, one end of the electric screwdriver 100 is connected to a screw rod 110, the fixed sleeve 200 is hollow inside and fixed to one side of the electric screwdriver 100, and the fixed sleeve 200 is sleeved on the outside of the screw rod 110; a through hole is formed inside the telescopic sleeve 300 to penetrate the screw rod 110, one end of the telescopic sleeve 300 can be telescopically inserted into the fixed sleeve 200, and is detachably connected to the fixed sleeve 200; the elastic member 370 is arranged inside the fixed sleeve 200, and is used to provide an elastic restoring force for the telescopic sleeve 300 to move away from the electric screwdriver 100.

[0044] In this embodiment, since the telescopic sleeve 300 is slidably connected to the fixed sleeve 200 in a detachable manner, when the elastic member 370 needs to be replaced, it is only necessary to remove the telescopic sleeve 300 from the fixed sleeve 200 to take out and replace the elastic member 370 without removing the entire positioning sleeve. Therefore, the replacement of the elastic member 370 is faster and also helps to improve the efficiency of the screw tightening operation.

[0045] Reference Figure 1 and Figure 2 It can be understood that, in the present embodiment, in order to enable the telescopic sleeve 300 to be slidably connected to the fixed sleeve 200 in a detachable manner, specifically, the screw locking and disassembly mechanism also includes a first adjusting nut 390, the first adjusting nut 390 is threadedly connected to the end of the fixed sleeve 200 away from the electric screwdriver 100, a first protrusion structure 310 is provided on the outer side of the telescopic sleeve 300, and a second protrusion structure 391 is formed on the inner side of the first adjusting nut 390, the first protrusion structure 310 is located between the second protrusion structure 391 and the end face of the fixed sleeve 200; and, the distance between the second protrusion structure 391 and the end face of the fixed sleeve 200 is greater than the width of the first protrusion structure 310, so that the first protrusion structure 310 can slide between the second protrusion structure 391 and the end face of the fixed sleeve 200, that is, the telescopic sleeve 300 can slide relative to the fixed sleeve 200.

[0046] When the elastic member 370 needs to be replaced, the first adjusting nut 390 can be unscrewed from the fixed sleeve 200 first, and then the telescopic sleeve 300 can be pulled out from the fixed sleeve 200. At this time, the elastic member 370 can be taken out and replaced, and then one end of the telescopic sleeve 300 can be reinserted into the fixed sleeve 200, and the first adjusting nut 390 can be screwed onto the fixed sleeve 200 again, thus completing the entire replacement and installation process of the elastic member 370.

[0047] It can be understood that in the present embodiment, specifically, the elastic member 370 is selected to be a compression spring; of course, according to actual conditions, in some other embodiments, the elastic member 370 may also be selected to be other types of elastic members 370 such as compressible elastic silicone blocks or rubber blocks, as long as they can provide the telescopic sleeve 300 with an elastic restoring force of an appropriate size to move away from the electric screwdriver 100, and no specific limitation is made here.

[0048] Reference Figure 1 and Figure 2 It can be understood that in the present embodiment, in order to facilitate processing and forming, specifically, a card slot is provided on the outer side of the telescopic sleeve 300, and the first protrusion structure 310 is a retaining ring that is card-engaged in the card slot; it should be understood that, according to actual conditions, in some other embodiments, the first protrusion structure 310 can also be other types of protrusion structures such as an annular boss integrally formed with the body of the telescopic sleeve 300, as long as the first protrusion structure 310 can be confined between the second protrusion structure 391 and the end face of the fixed sleeve 200, no specific limitation is made here.

[0049] Reference Figure 1 and Figure 2 It can be understood that, in the present embodiment, in order to facilitate processing and forming, specifically, the second protrusion structure 391 is an annular boss arranged on the inner side of the first adjusting nut 390; and it should be understood that, according to actual conditions, in some other embodiments, the second protrusion structure 391 can also be other types of protrusion structures such as a plurality of protrusions distributed circumferentially at intervals on the inner side of the first adjusting nut 390. As long as the second protrusion structure 391 can limit the sliding stroke of the first protrusion structure 310 together with the end face of the fixed sleeve 200, no specific limitation is made here.

[0050] Reference Figure 1 and Figure 2 It can be understood that, in the present embodiment, the screw locking and disassembly mechanism also includes a second adjusting nut 240, and the second adjusting nut 240 is threadedly connected to one end of the fixed sleeve 200 and the first adjusting nut 390 that are threadedly connected. By rotating the second adjusting nut 240, the position of the second adjusting nut 240 on the fixed sleeve 200 can be adjusted, and then the depth to which the first adjusting nut 390 can finally be screwed into the fixed sleeve 200 can be adjusted. The depth to which the first adjusting nut 390 is screwed into the fixed sleeve 200 will determine the length of the entire positioning sleeve, and the length of the positioning sleeve will affect the position of the end of the screw rod 110 away from the electric screwdriver 100 in the suction nozzle (which will be mentioned in detail below). Therefore, the position of the screw head used for the screw rod operation in the suction nozzle can be adjusted by the second adjusting nut 240.

[0051] It should be understood that in order to realize that the telescopic sleeve 300 is slidably connected to the fixed sleeve 200 in a detachable manner, in some other embodiments, the following method can also be adopted, that is, a telescopic elastic pin is provided on the outer side of the telescopic sleeve 300, and a slide groove extending in the axial direction is provided on the fixed sleeve 200, the elastic pin is clamped in the slide groove, and when the elastic pin is retracted into the telescopic sleeve 300, the elastic pin can be disengaged from the slide groove; when the elastic member 370 needs to be replaced, it can be replaced by pressing The elastic pin is retracted into the telescopic sleeve 300 by pressing, and the elastic pin has been disengaged from the slide groove. Then the telescopic sleeve 300 is pulled to make the telescopic sleeve 300 disengage from the fixed sleeve 200, and the elastic member 370 can be taken out and replaced. After replacing the elastic member 370, the elastic pin is pressed again, and the elastic member 370 and the telescopic sleeve 300 are reinserted into the fixed sleeve 200. Finally, the elastic pin automatically pops out and is stuck in the slide groove, completing the entire replacement and installation process of the elastic member 370.

[0052] Reference Figure 2 It can be understood that, in this embodiment, in order to prevent the elastic member 370 from escaping from the end of the fixed sleeve 200 close to the electric screwdriver 100, a third protrusion structure 210 is provided on the inner side of the end of the fixed sleeve 200 close to the electric screwdriver 100, and the end of the elastic member 370 away from the telescopic sleeve 300 abuts against the third protrusion structure 210; and, specifically, the third protrusion structure 210 is an annular boss provided on the inner side of the fixed sleeve 200.

[0053] Reference Figure 2 It can be understood that, in the present embodiment, the screw locking and disassembly mechanism further includes a pressure sensor 380, which is located inside the fixed sleeve 200 and between the elastic member 370 and the telescopic sleeve 300. The pressure sensor 380 can monitor the clamping force of the telescopic sleeve 300 and the suction nozzle 500 (described in detail below) on the screw to be tightened, so that during the screw tightening process, it can be determined whether there is a problem such as slipping between the screw rod 110 and the screw according to the change in the clamping force, so as to correct it in time; and after the screw is tightened, if the tightening depth of the screw is abnormal, it will also cause There is a large deviation between the clamping force detected by the pressure sensor 380 and the set value, so the pressure sensor 380 can also assist in determining whether the tightened screw reaches the required tightening depth range; at the same time, by setting the pressure sensor 380 inside the fixed sleeve 200, the pressure sensor 380 can also be effectively protected to prevent the pressure sensor 380 from being damaged. Moreover, since the pressure sensor 380 is located between the elastic part 370 and the telescopic sleeve 300, the pressure measured by the pressure sensor 380 is closer to the clamping force of the suction nozzle 500 on the screw, that is, the measurement accuracy is also better.

[0054] Reference Figure 2 It can be understood that, in this embodiment, a first accommodating cavity 320 is formed at one end of the telescopic sleeve 300 inserted into the fixed sleeve 200, and one end of the pressure sensor 380 and the elastic member 370 are disposed in the first accommodating cavity 320. By providing the first accommodating cavity 320 and placing one end of the pressure sensor 380 and the elastic member 370 in the first accommodating cavity 320, when the telescopic sleeve 300 is pulled out from the fixed sleeve 200, the pressure sensor 380 and the elastic member 370 can be taken out together with the telescopic sleeve 300, thereby preventing the elastic member 370 and the pressure sensor 380 from sliding out of the fixed sleeve 200 under the influence of gravity after the telescopic sleeve 300 is pulled out from the fixed sleeve 200, thereby affecting the replacement efficiency of the elastic member 370.

[0055] It should be understood that, in order to ensure measurement accuracy, the pressure sensor 380 can also be replaced according to the required compression force of the screw, and the method of removing and replacing the pressure sensor 380 is basically the same as that of the elastic member 370.

[0056] Reference Figure 2 and Figure 3 It can be understood that, in the present embodiment, a second accommodating chamber 330 is provided at one end of the telescopic sleeve 300 away from the fixed sleeve 200, and the through hole connects the first accommodating chamber 320 and the second accommodating chamber 330, and a first locating bearing 340 and a second locating bearing 350 are respectively installed in the first accommodating chamber 320 and the second accommodating chamber 330, and the first locating bearing 340 and the second locating bearing 350 are respectively installed in the first accommodating chamber 320 and the second accommodating chamber 330, and the batch rod 110 passes through the first locating bearing 340 and the second locating bearing 350, and the first locating bearing 340 and the second locating bearing 350 can realize the positioning of the batch rod 110 in the telescopic sleeve 300, thereby ensuring the axial position accuracy of the batch rod 110, that is, the batch rod 110 can better meet the concentricity requirements, so as to avoid bending and other problems of the batch rod 110 when tightening the screws.

[0057] Reference Figure 2 It can be understood that, in this embodiment, a third locating bearing 220 is further provided at one end of the fixed sleeve 200 close to the electric screwdriver 100, and the screwdriver rod 110 passes through the third locating bearing 220; since the screwdriver rod 110 is relatively long, the concentricity of the screwdriver rod 110 can be further improved by providing the third locating bearing 220 to coordinate with the first locating bearing 340 and the second locating bearing 350 to locate the screwdriver rod 110. In addition, one end of the third locating bearing 220 abuts against the third protruding structure 210, so that the axial position of the third locating bearing 220 is assisted by the third protruding structure 210.

[0058] Reference Figure 2 and Figure 3It can be understood that the screw locking and disassembly mechanism also includes a suction nozzle 500, and a vacuum joint 400 connected to the interior of the second accommodating chamber 330 is provided on the telescopic sleeve 300. The suction nozzle 500 is detachably connected to the opening 810 of the second accommodating chamber 330, and the end of the screwdriver rod 110 away from the electric screwdriver, that is, the end of the screwdriver rod 110 with the working screw head extends to the interior of the suction nozzle; the second accommodating chamber 330 can be connected to the vacuum generating device through the vacuum joint 400, so that negative pressure is generated in the second accommodating chamber 330 and the suction nozzle 500, so that the screw can be adsorbed by the suction nozzle 500, and the problem of displacement of the screwdriver rod 110 and the screw during the operation of tightening the screw can be avoided.

[0059] Reference Figure 4 Specifically, a countersunk hole 520 is provided at one end of the suction nozzle 500 away from the telescopic sleeve 300, and the countersunk hole 520 is used to accommodate the head of the screw to be tightened. An air suction channel connected to the countersunk hole 520 is formed inside the suction nozzle 500, and the air suction channel connects the inside of the suction nozzle 500 and the vacuum chamber formed between the second accommodating cavity 330.

[0060] Reference Figure 2 and Figure 3 It can be understood that in this embodiment, specifically, the second positioning bearing 350 is a sealed bearing, so that the second accommodating cavity 330 and the suction nozzle 500 form a closed vacuum chamber that is independent of the through hole and the first accommodating cavity 320, thereby enhancing the adsorption effect on the screws, so that the screws can be firmly adsorbed on the suction nozzle 500.

[0061] It is understandable that the suction nozzle 500 is detachably connected to the telescopic sleeve 300 , so that the suction nozzle 500 can be replaced according to screws of different specifications.

[0062] Reference Figure 2 and Figure 3 In the present embodiment, specifically, the screw locking and disassembly mechanism also includes a tightening nut 600 threadedly connected to one end of the telescopic sleeve 300 away from the fixed sleeve 200, one end of the suction nozzle 500 is inserted into the second accommodating cavity 330, and a fourth protrusion structure 510 is provided on the outer side of the suction nozzle 500, and the tightening nut 600 is provided with a fifth protrusion structure 610 to press the fourth protrusion structure 510 against one end surface of the telescopic sleeve 300; when the suction nozzle 500 needs to be replaced, the tightening nut 600 can be first rotated to disengage from the telescopic sleeve 300, and then the suction nozzle 500 can be pulled out of the second accommodating cavity 330, and one end of the new suction nozzle 500 can be inserted into the second accommodating cavity 330, and finally the tightening nut 600 can be re-tightened.

[0063] Reference Figure 2 and Figure 3It can be understood that, in the present embodiment, the screw locking and disassembly mechanism also includes a ventilation sleeve 360, which is arranged in the second accommodating chamber 330, one end of the ventilation sleeve 360 ​​abuts against the second positioning bearing 350, and the suction nozzle 500 abuts against the other end of the ventilation sleeve 360, so that the axial position of the second positioning bearing 350 can be limited by the cooperation of the ventilation sleeve 360 ​​and the bottom cavity wall of the second accommodating chamber 330; specifically, a ventilation hole is arranged on the ventilation sleeve 360 ​​so that the inner side of the ventilation sleeve 360 ​​can be connected with the vacuum joint 400.

[0064] It should be understood that, in addition to adopting the above-mentioned tightening nut 600 and other structures to achieve the detachable connection of the suction nozzle 500, in some other embodiments, the telescopic sleeve 300 and the suction nozzle 500 can also be provided with a rotating groove and a block that cooperate with each other to achieve this; for example, a rotating groove can be provided on the inner wall of the second accommodating chamber 330, and a block can be provided on the outer wall of the suction nozzle 500, wherein the rotating groove can be composed of an inlet section arranged along the axial direction of the telescopic sleeve 300 and a block arranged along the axial direction of the telescopic sleeve 300. 0 is composed of arc-shaped clamping sections arranged circumferentially; when the suction nozzle 500 is inserted into the second accommodating cavity 330, the clamping block is first aligned with the entrance section, and then the suction nozzle 500 is pushed into the second accommodating cavity 330 along the axial direction of the telescopic sleeve 300, at which time the clamping block also enters the clamping section through the entrance section, and then the suction nozzle 500 is rotated to achieve the clamping of the suction nozzle 500; and when taking out the suction nozzle 500, the suction nozzle 500 is first rotated, and then the suction nozzle 500 is pulled out of the second accommodating cavity 330 along the axial direction.

[0065] It can be understood that, in the present embodiment, the screw locking and disassembly mechanism also includes a flow meter (not shown in the drawings), which is arranged on the vacuum pipe connected to the vacuum joint 400; the flow meter can detect the gas flow in the vacuum pipe when the suction nozzle 500 adsorbs the screw. If the gas flow is relatively small, it means that the screw is adsorbed normally, and if the gas flow is large, it means that the screw is not adsorbed correctly; and, compared with the method of measuring the internal air pressure or vacuum degree of the second accommodating cavity 330, the gas flow is detected by the flow meter, and the detected data fluctuation is relatively small, so it is not easy to cause misjudgment, and the reliability of the detection result is relatively higher.

[0066] Reference Figure 1 and Figure 2 It can be understood that in order to achieve fixed and detachable installation of the electric screwdriver 100, the screw locking and disassembly mechanism also includes an electric screwdriver mounting seat 700 for fixing the electric screwdriver 100. The electric screwdriver mounting seat 700 includes a seat body and a plurality of clamping blocks 720. A plurality of semicircular first grooves are formed on the seat body, and a semicircular second groove is provided on the clamping block 720. The clamping block 720 is detachably connected to the seat body, and the second groove is opposite to the first groove to form an annular groove for clamping the electric screwdriver 100.

[0067] Reference Figure 1 and Figure 2 In this embodiment, specifically, two first grooves are provided on the seat body along the axial direction of the electric screwdriver 100. Similarly, two pressing blocks 720 are also provided, and the second groove on each pressing block 720 corresponds to a first groove, so that two annular grooves for pressing the electric screwdriver 100 are formed on the electric screwdriver mounting seat 700. Of course, it should be understood that in addition to providing two first grooves and two pressing blocks 720, in some other embodiments, only one first groove and one pressing block 720 may be provided, or three or more first grooves and three or more pressing blocks 720 may be provided, and no specific limitation is made here.

[0068] Reference Figure 1 and Figure 2 It can be understood that, in order to achieve the fixation of the fixed sleeve 200 and the telescopic sleeve 300, the screw locking and disassembly mechanism also includes a sleeve mounting seat 800, the sleeve mounting seat 800 is connected to the electric screwdriver mounting seat 700, and the fixed sleeve 200 is connected to the sleeve mounting seat 800. And, specifically, a flange 230 is provided at one end of the fixed sleeve 200 close to the electric screwdriver 100, a first mounting hole is provided on the flange 230, and a second mounting hole corresponding to the first mounting hole is provided on the sleeve mounting seat 800, and the fixed sleeve 200 is connected to the sleeve mounting seat 800 by screws that are correspondingly penetrated in the first mounting hole and the second mounting hole.

[0069] Reference Figure 1 and Figure 2 It can be understood that the sleeve mounting seat 800 is hollow, the screwdriver rod 110 is detachably connected to the electric screwdriver 100, the screwdriver rod 110 passes through the sleeve mounting seat 800, and the connecting portion between the screwdriver rod 110 and the electric screwdriver 100 is located in the sleeve mounting seat 800, and an opening 810 is provided on the side of the sleeve mounting seat 800. The opening 810 can allow a hand or a disassembly tool to enter the sleeve mounting seat 800 to release the connection between the screwdriver rod 110 and the electric screwdriver 100.

[0070] And, specifically, one end of the screwdriver rod 110 away from the electric screwdriver 100 extends to the inside of the suction nozzle 500. Since the suction nozzle 500 is detachably connected to the telescopic sleeve 300, when the suction nozzle 500 is removed, the end of the screwdriver rod 110 away from the electric screwdriver 100 will be exposed to the outside.

[0071] When the operator needs to replace the screwdriver 110, the nozzle 500 can be removed from the telescopic sleeve 300, so that the end of the screwdriver 110 extending from the nozzle 500 is exposed to the outside, and then the operator holds this end of the screwdriver 110 with the first hand, and the other hand of the operator extends into the interior of the screwdriver 110 through the opening 810 on the sleeve mounting seat 800, or the other hand holds the tool so that the tool passes through the opening 810 on the sleeve mounting seat 800 and extends into the interior of the sleeve mounting seat 800, and releases the connection between the other end of the screwdriver 110 and the electric screwdriver 100, and then the screwdriver 110 is pulled away from the electric screwdriver 100 by the first hand, so that the screwdriver 110 can be removed from the sleeve mounting seat 800 and the extension sleeve 300. The operator then pulls the tool out of the retractable sleeve 300 to complete the disassembly of the batch rod 110. When reinstalling another new batch rod 110, the operator can first insert the end of the batch rod 110 used to connect the electric screwdriver 100 into the telescopic sleeve 300 from the side of the telescopic sleeve 300 away from the sleeve mounting seat 800 with the first hand, and make the end of the batch rod 110 used to connect the electric screwdriver 100 penetrate into the sleeve mounting seat 800, and then the operator's other hand passes through the opening 810 on the sleeve mounting seat 800 and extends into the interior of the sleeve mounting seat 800, or the other hand holds the tool so that the tool passes through the opening 810 on the sleeve mounting seat 800 and extends into the interior of the sleeve mounting seat 800, so as to reconnect one end of the batch rod 110 to the electric screwdriver 100, and finally reinstall the suction nozzle 500 to the end of the telescopic sleeve 300 away from the electric screwdriver 100, so as to achieve the replacement of the batch rod 110.

[0072] It is understandable that the sleeve mounting seat 800 is detachably connected to the electric screwdriver mounting seat 700 by screws. Figure 1 and Figure 2Specifically, the seat body includes a connecting plate 711 and a fixing plate 712, wherein the fixing plates 712 have two and are respectively vertically connected to the connecting plate 711, and the first groove is arranged on the fixing plate 712, the connecting plate 711 is used to connect the entire screw locking and disassembly mechanism to the moving mechanism of the screw machine, and the connecting plate 711 is provided with a plurality of third mounting holes, so that the connecting plate 711 can be detachably mounted and fixed by screws passing through the third mounting holes; and specifically, the fixing plate 712 is provided with a plurality of fourth mounting holes on one side facing the pressing block 720 , a fifth mounting hole is provided at the position of the clamping block 720 corresponding to the fourth mounting hole, so that the clamping block 720 is detachably connected to the fixing plate 712 by screws penetrated through the fourth mounting hole and the fifth mounting hole; wherein, a plurality of sixth mounting holes are provided on the fixing plate 712 and the clamping block 720 located near the sleeve mounting seat 800, and a seventh mounting hole is provided at the position corresponding to the sixth mounting hole on the sleeve mounting seat 800, and the sleeve mounting seat 800 is detachably connected to the electric screwdriver mounting seat 700 by screws penetrated through the sixth mounting hole and the seventh mounting hole.

[0073] Screws of different specifications require different torques for tightening, so in some cases it is necessary to replace the electric screwdriver 100 to adapt to different torque drive requirements, and through the third mounting hole on the connecting plate 711, the electric screwdriver mounting base 700 can also be replaced along with the electric screwdriver 100; when the electric screwdriver 100 needs to be replaced, the sleeve mounting base 800 needs to be removed from the electric screwdriver mounting base 700, and then each clamping block 720 needs to be removed. At this time, the electric screwdriver 100 can be removed, and then the original seat body can be removed, and the new seat body can be installed. Finally, the new electric screwdriver 100 is placed in the first groove of the new seat body, and each new clamping block 720 and the sleeve mounting base 800 are connected in sequence.

[0074] The screw machine of the second aspect embodiment of the present invention includes the screw locking and disassembling mechanism of the first aspect embodiment mentioned above; since the screw machine of this embodiment adopts the screw locking and disassembling mechanism of the first aspect mentioned above, when performing locking operations on screws of different specifications, it is only necessary to remove the telescopic sleeve 300 from the fixed sleeve 200, and then take out and replace the elastic member 370, so that the screw locking and disassembling mechanism can quickly adapt to the operating requirements of screws of different specifications, which is beneficial to improving the efficiency of the screw locking operation.

[0075] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A screw locking and disassembly mechanism, characterized in that: include: An electric screwdriver, one end of which is connected with a screw rod; A fixed sleeve, which is hollow inside and fixed on one side of the electric screwdriver, and the fixed sleeve is sleeved on the outside of the screwdriver rod; A telescopic sleeve is formed with a through hole inside for passing the rod, one end of the telescopic sleeve is telescopically inserted into the fixed sleeve and is detachably connected to the fixed sleeve; An elastic member, disposed inside the fixed sleeve and used to provide an elastic restoring force for the telescopic sleeve to move away from the electric screwdriver; A first adjusting nut, wherein the first adjusting nut is threadedly connected to an end of the fixed sleeve away from the electric screwdriver, a first protrusion structure is arranged on the outer side of the telescopic sleeve, a second protrusion structure is formed on the inner side of the first adjusting nut, and the first protrusion structure is located between the second protrusion structure and the end face of the fixed sleeve; a clamping groove is arranged on the outer side of the telescopic sleeve, and the first protrusion structure is a retaining ring clamped in the clamping groove; and the second protrusion structure is an annular boss arranged on the inner side of the first adjusting nut; A second adjusting nut, wherein the second adjusting nut is threadedly connected to one end of the fixed sleeve that is threadedly connected to the first adjusting nut.

2. A screw locking and disassembling mechanism according to claim 1, characterized in that: A retractable elastic pin is arranged on the outer side of the telescopic sleeve, and a slide groove extending along the axial direction is arranged on the fixed sleeve. The elastic pin is clamped in the slide groove. When the elastic pin is retracted into the telescopic sleeve, the elastic pin can be disengaged from the slide groove.

3. The screw locking and disassembly mechanism according to claim 1, characterized in that: A third protruding structure is arranged on the inner side of one end of the fixed sleeve close to the electric screwdriver, and one end of the elastic member away from the telescopic sleeve abuts against the third protruding structure.

4. The screw locking and disassembly mechanism according to claim 1, characterized in that: A pressure sensor is also included, and the pressure sensor is located inside the fixed sleeve and between the elastic member and the telescopic sleeve.

5. A screw locking and disassembling mechanism according to claim 4, characterized in that: One end of the telescopic sleeve inserted in the fixed sleeve forms a first accommodating cavity, and the pressure sensor and one end of the elastic member are arranged in the first accommodating cavity.

6. A screw locking and disassembling mechanism according to claim 5, characterized in that: A second accommodating chamber is provided at one end of the telescopic sleeve away from the fixed sleeve, the through hole connects the first accommodating chamber and the second accommodating chamber, a first locating bearing and a second locating bearing are respectively installed in the first accommodating chamber and the second accommodating chamber, and the batch rod passes through the first locating bearing and the second locating bearing.

7. A screw locking and disassembling mechanism according to claim 6, characterized in that: The telescopic sleeve is provided with a vacuum joint connected to the interior of the second accommodating cavity, and the opening of the second accommodating cavity is detachably connected with a suction nozzle.

8. The screw locking and disassembling mechanism according to claim 7, characterized in that: The second locating bearing is a sealed bearing.

9. The screw locking and disassembling mechanism according to claim 7, characterized in that: It also includes a tightening nut threadedly connected to one end of the telescopic sleeve away from the fixed sleeve, one end of the suction nozzle is inserted into the second accommodating cavity, and a fourth protrusion structure is provided on the outer side of the suction nozzle, and the tightening nut is provided with a fifth protrusion structure to press the fourth protrusion structure against one end surface of the telescopic sleeve.

10. The screw locking and disassembling mechanism according to claim 9, characterized in that: It also includes a ventilation sleeve, which is arranged in the second accommodating cavity, one end of the ventilation sleeve abuts against the second positioning bearing, and the suction nozzle abuts against the other end of the ventilation sleeve.

11. The screw locking and disassembling mechanism according to claim 7, characterized in that: The suction nozzle and the telescopic shaft sleeve are clamped together by a clamping block and a rotating clamping groove that cooperate with each other.

12. The screw locking and disassembling mechanism according to claim 7, characterized in that: Also included is a flow meter, which is arranged on a vacuum pipe connected to the vacuum joint.

13. The screw locking and disassembling mechanism according to any one of claims 1 to 12, characterized in that: It also includes an electric screwdriver mounting base for fixing the electric screwdriver, the electric screwdriver mounting base includes a base body and a plurality of clamping blocks, the base body is formed with a plurality of semicircular first grooves, the clamping block is provided with a semicircular second groove, the clamping block is detachably connected to the base body, and the second groove is opposite to the first groove to form an annular groove for clamping the electric screwdriver.

14. The screw locking and disassembling mechanism according to claim 13, characterized in that: It also includes a sleeve mounting seat, which is connected to the electric screwdriver mounting seat, and the fixed sleeve is connected to the sleeve mounting seat.

15. The screw locking and disassembling mechanism according to claim 14, characterized in that: A flange is provided at one end of the fixed sleeve close to the electric screwdriver, a first mounting hole is provided on the flange, a second mounting hole corresponding to the first mounting hole is provided on the sleeve mounting seat, and the fixed sleeve is connected to the sleeve mounting seat by screws correspondingly penetrated through the first mounting hole and the second mounting hole.

16. The screw locking and disassembling mechanism according to claim 14, characterized in that: The bushing mounting seat is hollow, the screw rod is detachably connected to the electric screwdriver, the screw rod passes through the bushing mounting seat, and the connecting portion between the screw rod and the electric screwdriver is located in the bushing mounting seat, and an opening is provided on the side of the bushing mounting seat, and the opening can allow a hand or a disassembly tool to enter the bushing mounting seat to release the connection between the screw rod and the electric screwdriver.

17. The screw locking and disassembling mechanism according to claim 14, characterized in that: The shaft sleeve mounting seat is detachably connected to the electric screwdriver mounting seat by means of screws.

18. A screw machine, characterized in that: It comprises a screw locking and disassembly mechanism as claimed in any one of claims 1 to 17.

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