CN114700722A - Automatic sleeve replacing device for tightening shaft - Google Patents
Automatic sleeve replacing device for tightening shaft Download PDFInfo
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- CN114700722A CN114700722A CN202210430622.2A CN202210430622A CN114700722A CN 114700722 A CN114700722 A CN 114700722A CN 202210430622 A CN202210430622 A CN 202210430622A CN 114700722 A CN114700722 A CN 114700722A
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- sleeve
- assembling
- tightening shaft
- assembly
- tightening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides an automatic sleeve replacing device for a tightening shaft, and relates to the technical field of intelligent manufacturing production lines. According to the automatic sleeve replacing device for the tightening shaft, the compression stop ring is pressed to move downwards relative to the lower assembly sleeve, the middle core shaft is driven to move downwards relative to the lower assembly opening, the upper end narrowing position of the middle core shaft blocks the innermost position of the pore passage, the matched ball retracts from the outermost side of the pore passage, and the matched ball is attached to the upper end narrowing position of the middle core shaft; the upper end of the lower assembly set is nested in a first upper assembly set of the upper assembly set, a matching groove on the side wall of the first upper assembly set corresponds to the outermost position of the hole channel, the pressing action on the compression stop ring is separated, the middle core shaft moves upwards relative to the lower assembly set under the action of the reset spring, the innermost position of the hole channel is blocked by the non-upper end position of the middle core shaft, the non-upper end position of the middle core shaft is attached by the matching ball, the matching ball is exposed out of the outermost side of the hole channel and is embedded into the matching groove, and the matching of the tightening shaft connector and the sleeve connector is realized.
Description
Technical Field
The invention relates to the technical field of intelligent manufacturing production lines, in particular to an automatic sleeve changing device for a tightening shaft.
Background
The intelligent manufacturing production line is composed of various action devices, and the operations of grabbing, conveying, batching, assembling, offline and the like of a target workpiece are realized. The intelligent manufacturing production line realizes the intelligentization and automation of manufacturing, and greatly improves the production precision and efficiency. At present, a tightening apparatus is arranged on an intelligent manufacturing line, and a tightening operation of a target workpiece is realized by a tightening shaft. Wherein a tightening sleeve is assembled at the end of the tightening shaft, which fits the bolt on the target workpiece. If one tightening shaft can be matched with tightening sleeves of various types, the production line cost can be effectively reduced.
Disclosure of Invention
The invention aims to provide an automatic sleeve replacing device for a tightening shaft, which is used for realizing automatic matching switching of the tightening shaft and a tightening sleeve.
In order to achieve the above purpose, the technical solution adopted by the invention is as follows:
a tightening shaft automatic sleeve replacing device comprises a mechanical arm, a tightening shaft connector, a tightening sleeve, a sleeve connector and a clamping and pressing unit;
the tail end of the mechanical arm is provided with the tightening shaft, and the tail end of the tightening shaft is provided with the tightening shaft connector;
the upper assembling seat is assembled at the upper end of the upper assembling seat, the upper end of the upper assembling seat is assembled at the upper end of the upper assembling seat, the lower end of the upper assembling seat is assembled at the upper end of the upper assembling seat, a first upper assembling port is formed at the lower end of the upper assembling seat, and a plurality of matching grooves are formed in the side wall of the first upper assembling port;
the upper end of the screwing sleeve is provided with the sleeve connector;
the sleeve connector comprises a lower assembling seat, a lower assembling sleeve, a middle mandrel, a return spring, a lower limiting pin, a compression stop ring and a matching ball;
the lower end of the lower assembling seat is assembled with the upper end of the screwing sleeve, the upper end of the lower assembling seat is provided with the lower assembling sleeve, the upper end of the lower assembling sleeve is provided with a lower assembling opening, the side surface of the lower assembling sleeve is provided with a lower strip hole, the lower strip hole is arranged along the extending direction of the lower assembling sleeve, the lower strip hole is communicated with the lower assembling opening, the side surface of the upper end of the lower assembling sleeve is provided with a pore channel, the pore channel is arranged along the radial direction of the lower assembling sleeve, the pore channel is communicated with the lower assembling opening, the pore diameter of the pore channel is reduced from inside to outside, the pore diameter of the outermost side of the pore channel is smaller than the outer diameter of the matching ball, and the pore diameter of the innermost side of the pore channel is larger than the outer diameter of the matching ball;
a lower pin hole is formed in the side face of the lower end of the middle mandrel, and the upper end of the middle mandrel is narrowed from bottom to top;
a reset spring and an intermediate mandrel are sequentially assembled in the lower assembly opening from bottom to top, the intermediate mandrel can move relative to the lower assembly opening, the lower limiting pin is assembled with the lower pin hole and is positioned in the lower strip hole, the compression stop ring is nested at the upper end of the lower assembly opening, the tail end of the lower limiting pin is assembled and connected with the compression stop ring, and a matching ball is placed in one hole channel;
the middle mandrel dynamically blocks the innermost position of the pore channel, and when the narrowing position of the upper end of the middle mandrel blocks the innermost position of the pore channel, the matched ball can retract from the outermost side of the pore channel and is attached to the narrowing position of the upper end of the middle mandrel; when the non-upper end position of the middle mandrel blocks the innermost position of the pore channel, the matching ball is attached to the non-upper end position of the middle mandrel and is exposed out of the outermost side of the pore channel;
the clamping and pressing unit comprises a support frame, a clamping mechanism and a pressing mechanism, the clamping mechanism and the pressing mechanism are arranged on the support frame, the clamping mechanism is used for clamping the tightening sleeve or the sleeve connector, and the pressing mechanism is used for pressing the compression stop ring to enable the compression stop ring to move downwards relative to the lower assembly set.
Preferably, the tightening shaft connector further comprises a buffer rod, a buffer spring and an upper limit pin; the lower end of the upper assembling seat is provided with the buffer rod, and the side surface of the lower end of the buffer rod is provided with an upper pin hole; the upper end of the upper assembly set is provided with a second upper assembly port, the side surface of the upper assembly set is provided with an upper strip hole, the upper strip hole is arranged along the extension direction of the upper assembly set, and the upper strip hole is communicated with the second upper assembly port; the assembly mouth assembles in the second the buffer beam, the buffer beam can for the assembly mouth removes on the second, buffer spring assemble in go up the assembly seat with go up between the assembly suit, go up the spacer pin assembly go up the pinhole, go up the spacer pin and be located go up rectangular downthehole.
Preferably, the two opposite side surfaces of the upper assembling sleeve are provided with an upper long-strip hole, and two ends of the upper limiting pin are respectively positioned in the upper long-strip holes.
Preferably, the pressing mechanism comprises a first air cylinder and a pushing and pressing block, the first air cylinder is arranged on the support frame, the telescopic end of the first air cylinder is connected with the pushing and pressing block, and the part of the pushing and pressing block, which is in contact with the compression stop ring, is an inclined surface; the telescopic end of the first cylinder stretches to drive the pushing and pressing block to move along the horizontal direction, and when the inclined surface contacts the compression stop ring, the inclined surface pushes the compression stop ring to move downwards relative to the lower assembly set.
Preferably, fixture includes mounting fixture, second cylinder and movable fixture, mounting fixture set up in one side of support frame, the second cylinder set up in on the support frame, the flexible end of second cylinder is connected movable fixture, movable fixture be located with the opposite side that mounting fixture is relative, flexible end of second cylinder is flexible in order to drive movable fixture is close or keeps away from mounting fixture, movable fixture with mounting fixture is used for common centre gripping screw up the sleeve or the muffjoint head.
Preferably, the two opposite side surfaces of the lower assembly set are provided with a lower long hole, two ends of the lower limiting pin are positioned in the lower long holes, and two tail ends of the lower limiting pin are assembled and connected with the compression stop ring.
Preferably, the clamping mechanism and the pressing mechanism are arranged in pairs, the supporting frame is provided with a plurality of pairs of clamping mechanisms and pressing mechanisms, and each pair of clamping mechanisms and each pair of pressing mechanisms correspond to one screwing sleeve.
Preferably, the support frame is further provided with a support sleeve, the screwing sleeve can be inserted into the support sleeve, and the lower assembling seat is lapped on the upper end edge of the support sleeve.
Preferably, the robot further comprises a base, and the mechanical arm is arranged on the base.
Preferably, the lower end of the support frame is provided with a plurality of leveling mechanisms for adjusting the support frame to be in a horizontal state.
The beneficial technical effects of the invention are as follows:
the automatic sleeve replacing device for the tightening shaft of the invention is characterized in that the tightening sleeve is placed in a support sleeve, the clamping mechanism of the clamping and pressing unit clamps the tightening sleeve or a sleeve connector, the pressing mechanism of the clamping and pressing unit drives the compression stop ring to move downwards relative to the lower assembly sleeve, the middle mandrel is further driven to move downwards relative to the lower assembly port through the lower limit pin, the upper end narrowing position of the middle mandrel blocks the innermost position of a hole passage, a matching ball retracts from the outermost side of the hole passage and is attached to the upper end narrowing position of the middle mandrel, at the moment, the tightening shaft and the tightening shaft connector are driven to be close to the sleeve connector through a mechanical arm, the upper end of the lower assembly sleeve is nested in a first upper assembly port of the upper assembly sleeve, a matching groove on the side wall of the first upper assembly port corresponds to the outermost side hole passage, and the pressing mechanism of the clamping and pressing unit is separated from the pressing action of the compression stop ring, under the action of a reset spring, the middle core shaft moves upwards relative to the lower assembling port, the non-upper end position (middle or lower end position) of the middle core shaft blocks the innermost position of the hole channel, the matching ball is attached to the non-upper end position of the middle core shaft, the matching ball is exposed out of the outermost side of the hole channel and is embedded into the matching groove, the matching of the tightening shaft connector and the sleeve connector is realized, the clamping mechanism of the clamping and pressing unit is separated from the clamping action on the tightening sleeve or the sleeve connector, so that the automatic matching switching of the tightening shaft and the tightening sleeve is realized, the matching switching is accurate, and the efficiency is high.
Drawings
FIG. 1 is a perspective view of an automatic sleeve changing device for a tightening shaft according to an embodiment of the present invention;
FIG. 2 is a front view of an automatic sleeve changing device for a tightening shaft according to an embodiment of the present invention;
FIG. 3 is a side view of an automatic sleeve changing device for tightening shafts according to an embodiment of the present invention;
FIG. 4 is a perspective view of a portion of a clamping and pressing unit according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a front view of a clamping and pressing unit and the like according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
FIG. 9 is a top view of a clamping and pressing unit and the like according to an embodiment of the present invention;
FIG. 10 is a front view of the tightening sleeve and sleeve connector of the present embodiment, with the compression stop ring removed in FIG. 10;
FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;
FIG. 12 is a side view of a tightening sleeve and sleeve connector of an embodiment of the present invention, with the compression stop ring removed in FIG. 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings in combination with the specific embodiments. Certain embodiments of the invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In an embodiment of the present invention, an automatic sleeve changing device for a tightening shaft is provided, as shown in fig. 1 to 12.
A tightening shaft automatic sleeve replacing device comprises a mechanical arm 1, a tightening shaft 2, a tightening shaft connector 3, a tightening sleeve 4, a sleeve connector 5 and a clamping and pressing unit 6.
The mechanical arm 1 is arranged on the base 11, and the mechanical arm 1 can realize multi-degree-of-freedom adjustment so as to drive the tightening shaft 2 and the tightening shaft connector 3 to keep any posture in space, further drive the sleeve connector 5 and the tightening sleeve 4 to keep any posture in space, and enable the tightening sleeve 4 to be aligned with a certain bolt of a target workpiece.
The end of the mechanical arm 1 is provided with a tightening shaft 2, and the end of the tightening shaft 2 is provided with a tightening shaft connector 3.
Specifically, the tightening shaft connector 3 includes an upper assembling seat 31 and an upper assembling sleeve 32, the upper end of the upper assembling seat 31 is assembled with the end of the tightening shaft 2, the lower end of the upper assembling seat 31 is assembled with the upper end of the upper assembling sleeve 32, the lower end of the upper assembling sleeve 32 is provided with a first upper assembling hole 321, and the side wall of the first upper assembling hole 321 is provided with a plurality of matching grooves 322. The first upper assembling hole 321 of the upper assembling sleeve 32 is used for assembling the upper end of the lower assembling sleeve 52, and the matching groove 322 on the side wall of the first upper assembling hole 321 is used for embedding the matching ball 57, so as to realize the matching connection between the upper assembling sleeve 32 and the lower assembling sleeve 52, and further realize the matching connection between the tightening shaft connector 3 and the sleeve connector 5.
The tightening shaft connector 3 further comprises a buffer rod 33, a buffer spring 34 and an upper limit pin 35. The lower end of the upper assembling seat 31 is provided with a buffer rod 33, the buffer rod 33 extends along the vertical direction, the side surface of the lower end of the buffer rod 33 is provided with an upper pin hole, and an upper limit pin 35 is assembled in the upper pin hole. The upper end of the upper fitting sleeve 32 is provided with a second upper fitting opening 323, the side surface of the upper fitting sleeve 32 is provided with an upper strip hole 324, the upper strip hole 324 is arranged along the extending direction of the upper fitting sleeve 32, and the upper strip hole 324 is communicated with the second upper fitting opening 323. The buffer rod 33 is assembled in the second upper assembling hole 323, the buffer rod 33 can move relative to the second upper assembling hole 323, the buffer spring 34 is assembled between the upper assembling seat 31 and the upper assembling sleeve 32, the upper limit pin 35 is assembled in the upper pin hole, and the upper limit pin 35 is positioned in the upper strip hole 324. Thus, when the upper assembling sleeve 32 is matched and connected with the lower assembling sleeve 52, the buffer between the upper assembling seat 31 and the upper assembling sleeve 32 is realized through the buffer spring 34, and the hard impact generated when the upper assembling sleeve 32 is matched with the lower assembling sleeve 52 is avoided.
Two opposite side surfaces of the upper assembling sleeve 32 are respectively provided with an upper strip hole 324, and two ends of the upper limit pin 35 are respectively positioned in one upper strip hole 324. In this way, the upper fitting seat 31 and the cushion rod 33 can move in the axial direction of the first upper fitting hole 321 of the upper fitting set 32 by the fitting guide between the upper stopper pin 35 and the upper elongated hole 324.
The upper end of the screwing sleeve 4 is provided with a sleeve connector 5, and the sleeve connector 5 comprises a lower assembling seat 51, a lower assembling sleeve 52, a middle mandrel 53, a return spring 54, a lower limiting pin 55, a compression stop ring 56 and a matching ball 57.
The lower end of the lower assembling seat 51 is assembled with the upper end of the screwing sleeve 4, and the upper end of the lower assembling seat 51 is provided with a lower assembling sleeve 52. The upper end of the lower assembly sleeve 52 is provided with a lower assembly opening 521, the side surface of the lower assembly sleeve 52 is provided with a lower long hole 522, the lower long hole 522 is arranged along the extending direction of the lower assembly sleeve 52, and the lower long hole 522 is communicated with the lower assembly opening 521. The side surface of the upper end of the lower assembly set 52 is provided with a pore channel 523, the pore channel 523 is arranged along the radial direction of the lower assembly set 52, the pore channel 523 is communicated with the lower assembly opening 521, and the pore diameter of the pore channel 523 is reduced from inside to outside. The hole diameter of the outermost side of the duct 523 is smaller than the outer diameter of the matching ball 57, and the hole diameter of the innermost side of the duct 523 is larger than the outer diameter of the matching ball 57.
The side surface of the lower end of the middle core shaft 53 is provided with a lower pin hole, and the upper end of the middle core shaft 53 narrows from bottom to top.
The return spring 54 and the middle core shaft 53 are sequentially assembled in the lower assembling opening 521 from bottom to top, the middle core shaft 53 can move relative to the lower assembling opening 521, the lower limiting pin 55 is assembled in the lower pin hole, and the lower limiting pin 55 is positioned in the lower long hole 522. A compression stop ring 56 is nested in the upper end of the lower fitting sleeve 52, the compression stop ring 56 being movable relative to the lower fitting sleeve 52, and the distal end of the lower limit pin 55 being fittingly engaged with the compression stop ring 56. A mating ball 57 is disposed within a bore 523, and specifically the mating ball 57 is disposed within the bore 523 from an innermost side of the bore 523.
The opposite two side surfaces of the lower assembling sleeve 52 are provided with a lower strip-shaped hole 522, two ends of the lower limiting pin 55 are positioned in the lower strip-shaped holes 522, and two tail ends of the lower limiting pin 55 are assembled and connected with the compression stop ring 56. In this way, the intermediate mandrel 53 can be moved in the axial direction of the lower fitting opening 521 of the lower fitting ring 52 by the fitting guide between the lower limit pin 55 and the lower elongated hole 522.
The middle mandrel 53 dynamically blocks the innermost position of the pore channel 523, and when the narrowing position at the upper end of the middle mandrel 53 blocks the innermost position of the pore channel 523, the matching ball 57 can retract from the outermost side of the pore channel 523, and the matching ball 57 is attached to the narrowing position at the upper end of the middle mandrel 53; when the non-upper end position (middle or lower end position) of the middle core shaft 53 blocks the innermost position of the duct 523, the matching ball 57 is attached to the non-upper end position (middle or lower end position) of the middle core shaft 53, and the matching ball 57 is exposed out of the outermost side of the duct 523.
The clamping and pressing unit 6 includes a support frame 61, a clamping mechanism, and a pressing mechanism, which are provided on the support frame 61. Wherein the clamping mechanism is used for clamping the tightening sleeve 4 or the socket connector 5 to keep the socket connector 5 stable when the tightening shaft connector 3 is mated with the socket connector 5. The pressing mechanism serves to press the compression stopper ring 56 to move the compression stopper ring 56 downward with respect to the lower assembly set 52.
The pressing mechanism comprises a first cylinder 621 and a pushing pressing block 622, the fixed end of the first cylinder 621 is arranged on the support frame 61, the telescopic end of the first cylinder 621 is connected with the pushing pressing block 622, and the part of the pushing pressing block 622 in contact with the compression stop ring 56 is arranged as an inclined plane 623. The telescopic end of the first cylinder 621 extends and retracts to drive the pushing and pressing block 622 to move in the horizontal direction, and when the inclined surface 623 contacts the compression stop ring 56, the inclined surface 623 pushes the compression stop ring 56 to move downwards relative to the lower assembly sleeve 52. In addition, the tail end of the pushing and pressing block 622 is provided with a U-shaped opening 624, and two inclined surfaces 623 are respectively arranged at two ends of the U-shaped opening 624, so that the two inclined surfaces 623 respectively contact the left side and the right side of the compression stop ring 56, and the contact between the inclined surfaces 623 and the compression stop ring 56 is more stable.
Fixture includes mounting fixture 631, second cylinder 632 and activity anchor clamps 633, and mounting fixture 631 sets up in one side of support frame 61, and the stiff end of second cylinder 632 sets up on support frame 61, and the flexible end of second cylinder 632 connects activity anchor clamps 633, and activity anchor clamps 633 are located the opposite side relative with mounting fixture 631. The flexible end of second cylinder 632 stretches out and draws back in order to drive movable clamp 633 and be close to or keep away from mounting fixture 631, and movable clamp 633 is used for jointly centre gripping with mounting fixture 631 and screws up sleeve 4 or sleeve connector 5, makes sleeve connector 5 remain stable, is convenient for screw up a connector 3 and the cooperation of sleeve connector 5.
The clamping mechanisms and the pressing mechanisms are arranged in pairs, three pairs of clamping mechanisms and three pairs of pressing mechanisms are arranged on the support frame 61, each pair of clamping mechanism and each pair of pressing mechanism correspond to one screwing sleeve 4, and the three screwing sleeves 4 are different in model. In this way, one tightening shaft 2 is made to fit three models of tightening sockets 4.
The support frame 61 is further provided with a support sleeve 64, the tightening sleeve 4 can be inserted into the support sleeve 64, and the lower assembly seat 51 is lapped on the upper end edge of the support sleeve 64. The support of the screw-down sleeve 4 and the sleeve connection head 5 is realized by a support sleeve 64.
The lower end of the support frame 61 is provided with four leveling mechanisms, and the leveling mechanisms are used for adjusting the support frame 61 to be in a horizontal state so as to keep the upper end face of the sleeve connector 5 horizontal and facilitate the screwing of the shaft connector 3 and the sleeve connector 5. In this embodiment, the leveling mechanism includes supporting legs 651 and leveling screws 652, the supporting legs 651 are provided with the leveling screws 652, the lower end edge of the supporting frame 61 is provided with a threaded hole, the upper end of the leveling screws 652 are connected to the threaded hole, and the supporting frame 61 is adjusted to be in a horizontal state by rotating each leveling screw 652 to adjust the distance between each supporting leg 651 and the lower end of the supporting frame 61.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize the automatic sleeve changing device for tightening shaft according to the present invention. The automatic sleeve replacing device for the tightening shaft of the invention is characterized in that the tightening sleeve 4 is placed in a support sleeve 64, the tightening sleeve 4 or a sleeve connector 5 is clamped by a clamping mechanism of a clamping and pressing unit 6, a compression stop ring 56 is driven by the pressing mechanism of the clamping and pressing unit 6 to move downwards relative to a lower assembly sleeve 52, a middle core shaft 53 is driven by a lower limit pin 55 to move downwards relative to a lower assembly opening 521, the upper end narrowing position of the middle core shaft 53 blocks the innermost position of a hole channel 523, a matching ball 57 retracts from the outermost side of the hole channel 523, the matching ball 57 is attached to the upper end narrowing position of the middle core shaft 53, at the moment, a tightening shaft 2 and a tightening shaft connector 3 are driven by a mechanical arm 1 to be close to the sleeve connector 5, the upper end of the lower assembly sleeve 52 is embedded in a first upper assembly opening 321 of an upper assembly sleeve 32, a matching groove 322 on the side wall of the first upper assembly opening 321 corresponds to the outermost position of the hole channel 523, the pressing mechanism of the clamping and pressing unit 6 is separated from the pressing action of the compression stop ring 56, the middle core shaft 53 moves upwards relative to the lower assembly opening 521 under the action of the return spring 54, the non-upper end position (middle or lower end position) of the middle core shaft 53 blocks the innermost position of the hole 523, the matching ball 57 is attached to the non-upper end position of the middle core shaft 53, the matching ball 57 is exposed out of the outermost side of the hole 523, the matching ball 57 is embedded into the matching groove 322 to realize the matching of the tightening shaft connector 3 and the sleeve connector 5, and the clamping mechanism of the clamping and pressing unit 6 is separated from the clamping action of the tightening sleeve 4 or the sleeve connector 5, so that the automatic matching switching of the tightening shaft 2 and the tightening sleeve 4 is realized, the matching switching is accurate, and the efficiency is high.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a screw up automatic sleeve changing device of axle which characterized in that: the device comprises a mechanical arm, a tightening shaft connector, a tightening sleeve, a sleeve connector and a clamping and pressing unit;
the tail end of the mechanical arm is provided with the tightening shaft, and the tail end of the tightening shaft is provided with the tightening shaft connector;
the upper assembling seat is assembled at the upper end of the upper assembling seat, the upper end of the upper assembling seat is assembled at the upper end of the upper assembling seat, the lower end of the upper assembling seat is assembled at the upper end of the upper assembling seat, a first upper assembling port is formed at the lower end of the upper assembling seat, and a plurality of matching grooves are formed in the side wall of the first upper assembling port;
the upper end of the screwing sleeve is provided with the sleeve connector;
the sleeve connector comprises a lower assembling seat, a lower assembling sleeve, a middle mandrel, a return spring, a lower limiting pin, a compression stop ring and a matching ball;
the lower end of the lower assembling seat is assembled with the upper end of the screwing sleeve, the upper end of the lower assembling seat is provided with the lower assembling sleeve, the upper end of the lower assembling sleeve is provided with a lower assembling opening, the side surface of the lower assembling sleeve is provided with a lower strip hole, the lower strip hole is arranged along the extending direction of the lower assembling sleeve, the lower strip hole is communicated with the lower assembling opening, the side surface of the upper end of the lower assembling sleeve is provided with a pore channel, the pore channel is arranged along the radial direction of the lower assembling sleeve, the pore channel is communicated with the lower assembling opening, the pore diameter of the pore channel is reduced from inside to outside, the pore diameter of the outermost side of the pore channel is smaller than the outer diameter of the matching ball, and the pore diameter of the innermost side of the pore channel is larger than the outer diameter of the matching ball;
a lower pin hole is formed in the side face of the lower end of the middle mandrel, and the upper end of the middle mandrel is narrowed from bottom to top;
a return spring and a middle mandrel are sequentially assembled in the lower assembly opening from bottom to top, the middle mandrel can move relative to the lower assembly opening, the lower limiting pin is assembled in the lower pin hole and is positioned in the lower strip hole, the compression stop ring is nested at the upper end of the lower assembly opening, the tail end of the lower limiting pin is assembled and connected with the compression stop ring, and a matching ball is placed in one hole channel;
the middle mandrel dynamically blocks the innermost position of the pore channel, and when the narrowing position of the upper end of the middle mandrel blocks the innermost position of the pore channel, the matched ball can retract from the outermost side of the pore channel and is attached to the narrowing position of the upper end of the middle mandrel; when the non-upper end position of the middle mandrel blocks the innermost position of the pore channel, the matching ball is attached to the non-upper end position of the middle mandrel and is exposed out of the outermost side of the pore channel;
the clamping and pressing unit comprises a support frame, a clamping mechanism and a pressing mechanism, the clamping mechanism and the pressing mechanism are arranged on the support frame, the clamping mechanism is used for clamping the tightening sleeve or the sleeve connector, and the pressing mechanism is used for pressing the compression stop ring to enable the compression stop ring to move downwards relative to the lower assembly set.
2. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the tightening shaft connector also comprises a buffer rod, a buffer spring and an upper limit pin; the lower end of the upper assembling seat is provided with the buffer rod, and the side surface of the lower end of the buffer rod is provided with an upper pin hole; the upper end of the upper assembly set is provided with a second upper assembly port, the side surface of the upper assembly set is provided with an upper strip hole, the upper strip hole is arranged along the extension direction of the upper assembly set, and the upper strip hole is communicated with the second upper assembly port; the assembly mouth assembles in the second the buffer beam, the buffer beam can for the assembly mouth removes on the second, buffer spring assemble in go up the assembly seat with go up between the assembly suit, go up the spacer pin assembly go up the pinhole, go up the spacer pin and be located go up rectangular downthehole.
3. The automatic sleeve changing device for the tightening shaft according to claim 2, wherein: the two opposite side surfaces of the upper assembling sleeve are provided with an upper strip-shaped hole, and two ends of the upper limiting pin are respectively positioned in the upper strip-shaped holes.
4. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the pressing mechanism comprises a first air cylinder and a pushing pressing block, the first air cylinder is arranged on the supporting frame, the telescopic end of the first air cylinder is connected with the pushing pressing block, and the part of the pushing pressing block, which is in contact with the compression stop ring, is arranged to be an inclined plane; the telescopic end of the first cylinder stretches to drive the pushing and pressing block to move along the horizontal direction, and when the inclined surface contacts the compression stop ring, the inclined surface pushes the compression stop ring to move downwards relative to the lower assembly set.
5. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: fixture includes mounting fixture, second cylinder and movable fixture, mounting fixture set up in one side of support frame, the second cylinder set up in on the support frame, the flexible end of second cylinder is connected movable fixture, movable fixture be located with the opposite side that mounting fixture is relative, flexible end of second cylinder is flexible in order to drive movable fixture is close or keeps away from mounting fixture, movable fixture with mounting fixture is used for common centre gripping screw up the sleeve or the muffjoint head.
6. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the two opposite side surfaces of the lower assembly set are provided with a lower strip-shaped hole, two ends of the lower limiting pin are positioned in the lower strip-shaped holes, and two tail ends of the lower limiting pin are connected with the compression stop ring in an assembling mode.
7. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the clamping mechanism and the pressing mechanism are arranged in pairs, a plurality of pairs of the clamping mechanism and the pressing mechanism are arranged on the supporting frame, and each pair of the clamping mechanism and the pressing mechanism corresponds to one screwing sleeve.
8. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the support frame is further provided with a support sleeve, the screwing sleeve can be inserted into the support sleeve, and the lower assembly seat is lapped on the upper end edge of the support sleeve.
9. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: still include the base, robotic arm set up in on the base.
10. The automatic sleeve changing device for the tightening shaft according to claim 1, wherein: the lower extreme of support frame is provided with a plurality of and is used for adjusting the leveling mechanism that the support frame is in the horizontality.
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| CN202210430622.2A CN114700722B (en) | 2022-04-22 | 2022-04-22 | Automatic sleeve replacing device for tightening shaft |
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| CN202210430622.2A CN114700722B (en) | 2022-04-22 | 2022-04-22 | Automatic sleeve replacing device for tightening shaft |
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| CN114700722B CN114700722B (en) | 2023-08-22 |
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| CN114700722B (en) | 2023-08-22 |
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