CN218695834U - Automatic assembly machine for torsional spring of circuit breaker - Google Patents

Abstract

The utility model relates to an automatic assembly machine for a torsional spring of a circuit breaker, which comprises a frame, wherein a rotary table is rotationally arranged on the frame, a plurality of workpiece assembly stations are arranged on the rotary table along the circumferential interval of the rotary table, a workpiece assembly cavity is arranged on the rotary table, and a contact support feeding unit, a contact support detecting unit, a torsional spring feeding assembly unit and a finished product discharging unit are sequentially arranged on the frame along the circumferential direction of the rotary table; the contact support feeding unit feeds the contact support into the workpiece assembly cavity; the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity is in place or not; torsional spring feeding assembly unit is turned round the torsional spring and is delivered to the torsional spring that has turned round and assemble intracavity and contact carrier and clamp, and torsional spring feeding assembly unit has torsional spring torsion mechanism and removes the module, and torsional spring torsion mechanism includes liftable push away the material pipe, the fixed static fastener rotatable motion's that sets up the card piece that moves. The novel torsion spring assembly scheme has the advantages that the contact support and the torsion spring are convenient to feed, assemble and discharge, and the precision is high.

Description

Automatic assembly machine for torsional spring of circuit breaker

Technical Field

The utility model belongs to the technical field of circuit breaker accessory assembly and specifically relates to a circuit breaker torsional spring automatic assembly machine.

Background

The handle of the miniature circuit breaker needs to be provided with a torsion spring. When the torsion spring 1' is installed in the prior art, the torsion spring 1' is usually installed on the corresponding contact support 2' manually, the torsion spring 1' is provided with a spiral ring part 11', a first supporting leg 12' and a second supporting leg 13' which are designed up and down, the contact support 2' is provided with a central shaft column 21' and a clamping block 22' on the outer side, because the two supporting legs of the torsion spring 1' need to be opened by a certain angle when the torsion spring 1' is installed, the torsion spring is pressed to a target position in an opened state, the torsion spring 1' is sleeved on the shaft column 21', and the two supporting legs respectively abut against two sides of the clamping block 22', and the installation difficulty is large. The assembly line is assembled manually at the present stage, so that the installation strength is high, the assembly efficiency is low, the torsion spring is required to be pressed into position, two support legs of the torsion spring are ensured to reach a target position, and the assembly qualification rate is low due to the fact that the torsion spring is not installed in place.

The device for automatically assembling the torsion spring of the handle of the circuit breaker, which is proposed by the applicant in the past, comprises a vacancy detection assembly, a handle feeding assembly, a handle detection assembly, a torsion spring feeding assembly, a torsion spring detection assembly, a torsion spring steering detection assembly, a workpiece blanking assembly, a workbench assembly and a base plate; vacancy determine module, handle material loading subassembly, handle determine module, torsional spring material loading subassembly, torsional spring determine module, torsional spring turn to subassembly, torsional spring turn to determine module and work piece unloading subassembly and arrange in proper order in the periphery of workstation subassembly. This patent torsional spring automated assembly improves precision, uniformity, the efficiency of product assembly and reduces the rejection rate to a certain extent. We analyzed by experiments the following problems: the torsional spring turns to the subassembly transmission structure complicacy, has the unable two feet of torsional spring to open effective angle to the stable cover of torsional spring after will opening is established and is established the problem on the work piece, and in operation process, the skew appears easily in the torsional spring, the cover is established inconveniently. The structural design is complex, the assembly operation is inconvenient, and the result of poor product quality is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a circuit breaker torsional spring automatic assembly machine, new torsional spring assembly scheme, contact carrier and torsional spring pay-off, torsional spring assembly and ejection of compact are convenient, and the precision is high.

The technical scheme of the utility model: an automatic assembly machine for a torsion spring of a circuit breaker comprises a rack, wherein a rotary table is rotatably arranged on the rack, a plurality of workpiece assembly stations are arranged on the rotary table at intervals along the circumferential direction of the rotary table, a workpiece assembly cavity is formed in the workpiece assembly stations, and a contact support feeding unit, a contact support detecting unit, a torsion spring feeding assembly unit and a finished product discharging unit are sequentially arranged on the rack along the circumferential direction of the rotary table;

the contact support feeding unit feeds the contact support into the workpiece assembly cavity;

the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity is in place;

the torsion spring feeding assembly unit twists the torsion spring and sends the twisted torsion spring into a workpiece assembly cavity to be clamped with the contact support, the torsion spring feeding assembly unit is provided with a torsion spring torsion mechanism and a moving module, the torsion spring torsion mechanism comprises a lifting pushing pipe and a moving clamping piece, the static clamping piece is fixedly arranged and can move in a rotating mode, two support legs of the torsion spring on a station abut against the static clamping piece and the moving clamping piece respectively, the torsion spring is twisted through the moving clamping piece when rotating to one side far away from the static clamping piece, the pushing pipe pushes out the twisted torsion spring, the moving module comprises a torsion spring feeding mechanism B, the feeding mechanism B can send the twisted torsion spring to the workpiece assembly station and clamp the twisted torsion spring with the contact support in the workpiece assembly cavity, the torsion spring feeding mechanism B comprises a lifting moving torsion spring sleeve rod and a stripping pipe, the stripping pipe is sleeved on the torsion spring sleeve rod and can move up and down relative to the sleeve rod, the torsion spring sleeve rod can be sleeved with the stripping pipe, the stripping pipe can be contacted with the upper end face of the torsion spring, the feeding mechanism B further comprises a stripping pipe driving piece for driving the stripping pipe, the torsion spring sleeve rod is provided with a second clamping surface, and another support leg is arranged on the torsion spring clamping piece,

when the torsion spring sleeve rod corresponds to the upper part of the torsion spring torsion mechanism, the torsion spring foot supporting surface on the static clamping piece is kept flush or exceeds the first clamping surface on the clamping piece, and after the torsion spring foot supporting surface on the movable clamping piece rotates to be flush or exceed the second clamping surface on the clamping piece, the torsion spring feeding mechanism B can receive the material pushing pipe to push out the twisted-open torsion spring;

when the torsion spring sleeve rod is arranged above the contact support corresponding to the workpiece assembly cavity, the first clamping surface and the second clamping surface on the clamping piece respectively exceed or are flush with the corresponding two outer side surfaces of the clamping block on the contact support, and the stripping pipe can complete downward stripping of the torsion spring under the driving of the stripping pipe driving piece;

and the finished product discharging unit is used for sending out the contact support assembled with the torsion spring.

The utility model discloses technical scheme has following beneficial effect for current design:

the turntable rotates to sequentially convey the workpiece assembly cavities to the positions of the processing units for assembly of the workpieces, and the contact support feeding unit feeds the contact support into the workpiece assembly cavities; the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity is in place; the torsion spring feeding mechanism A is used for feeding the adjusted torsion spring to a torsion spring torsion mechanism, the torsion of the torsion spring is realized by the torsion spring torsion mechanism, and then the twisted torsion spring is clamped on a contact support in a workpiece assembling cavity to realize assembling; and the finished product discharging unit is used for discharging the assembled workpiece. The full-automatic assembly mode of the instrument is adopted, the efficiency is high, the assembly positions of the torsion springs and the contact supports can be ensured to be consistent, and the product precision is high.

When the torsion spring is twisted, the torsion spring sleeve rod corresponds to the upper part of the torsion spring twisting mechanism, the torsion spring sleeve rod corresponds to the torsion spring sleeve column, the torsion spring pin supporting surface on the static clamping piece is kept level or exceeds a first clamping surface on the clamping piece, then the dynamic clamping piece is driven by the rotational driving piece of the dynamic clamping piece to rotate to one side far away from the static clamping piece so as to twist the torsion spring, the torsion spring pin supporting surface on the dynamic clamping piece can be rotated to be level or exceed a second clamping surface on the clamping piece, the twisted torsion spring can be clamped on the torsion spring sleeve rod by pushing the material pushing pipe upwards, and the torsion spring pin supporting surfaces of the static clamping piece and the dynamic clamping piece are kept level or exceed the clamping surfaces on the clamping piece, so that the two torsion spring pins can be clamped on the two side surfaces of the clamping piece conveniently; the stripping pipe is abutted against the upper end face of the torsion spring, so that the torsion spring can be stripped conveniently by the downward action of the stripping pipe. The static clamping piece and the movable clamping piece of the torsion spring torsion mechanism in the torsion spring feeding assembly unit are matched with each other in a rotating mode to enable the torsion spring to be turned off, the material pushing pipe is pushed to the torsion spring feeding mechanism B, the torsion spring feeding mechanism B keeps the torsion spring posture to be conveyed to the workpiece assembly cavity, manual assembly torsion springs in the current stage are replaced, the full-automatic assembly torsion springs can be reasonable and effectively achieved, the problem that the circuit breaker can be installed only by turning off the torsion spring is solved, the application range is enlarged, the assembly efficiency is remarkably improved, and the labor cost is saved.

The utility model discloses a further setting again: the contact support feeding unit comprises a contact support material tray, a contact support conveying rail and a contact support feeding clamping jaw, and the clamping jaw is used for clamping and conveying the contact support at the tail end of the contact support conveying rail into the workpiece assembling cavity; the clamping jaw can rotate, and position adjustment of clamping and conveying the contact support to the workpiece assembly cavity is achieved.

By adopting the above further arrangement, the contact support feeding unit is simple in structure, the contact support is fed through the contact support material tray, the contact support conveying track is used for conveying materials, the materials are clamped and conveyed through the feeding clamping jaws, the clamping jaws can rotate, the contact support can be rotated and adjusted in position, the contact support can be conveniently conveyed into the workpiece assembly cavity in a clamping mode, and the feeding position of the contact support is kept consistent every time.

The utility model discloses a further setting again: the contact support feeding unit comprises a feeding clamping seat, a feeding clamping seat lifting driving part for driving the feeding clamping seat to lift, and a feeding clamping seat translation driving part for driving the feeding clamping seat to horizontally slide.

By adopting the above further arrangement, the first feeding clamping jaw and the second feeding clamping jaw are arranged, so that when the feeding clamping seat translation driving piece drives the feeding clamping seat to perform sliding feeding, the first feeding clamping jaw moves to transfer the contact support clamped at the tail end of the contact support conveying track into the workpiece assembly cavity, and at the moment, the second feeding clamping jaw corresponds to the tail end of the contact support conveying track to clamp the contact support; when the material is fed again, the first feeding clamping jaw moves out of the vacant position, and the second feeding clamping jaw moves to transfer the clamped contact support to the workpiece assembling cavity, so that two times of feeding operation are facilitated, and the efficiency is high.

The utility model discloses a further setting again: torsional spring feeding assembly unit still includes torsional spring feed mechanism and torsional spring adjustment station, torsional spring feed mechanism include torsional spring charging tray and torsional spring delivery track, torsional spring adjustment station corresponds torsional spring delivery track's exit, has the spacing face of periphery inconsistent with the spiral circle portion of torsional spring on it to and can with the spacing adjusting surface of stabilizer blade inconsistent of output torsional spring, spacing face with the adjusting surface form the turning, remove the module and still include torsional spring feeding mechanism A, feeding mechanism A can be used to send into torsional spring torsion mechanism with the torsional spring after the adjustment on the torsional spring adjustment station.

By adopting the further arrangement, the material is fed by the torsion spring feeding mechanism, the position of the torsion spring is adjusted by the torsion spring adjusting station, the spiral ring part of the torsion spring is abutted against the limiting surface, the support legs are abutted against the adjusting surface, and the formation of the corners can effectively position the torsion spring, avoid the rotation deviation of the torsion spring and realize the adjustment of the position of the torsion spring, so that the torsion spring can be adjusted to an appointed position every time;

the utility model discloses a further setting again: feeding mechanism A has liftable anchor clamps of removing to and the centre gripping driving piece, anchor clamps including being arranged in inserting the relative two interior chucks in the torsional spring hole, the centre gripping driving piece be used for driving two interior chucks and be close to relatively or keep away from, wherein, anchor clamps are when being corresponding to torsional spring adjustment station top, anchor clamps can move down and insert in the torsional spring hole on the torsional spring adjustment station, two interior chucks of anchor clamps are kept away from relatively and are leaned on with the torsional spring inner circle under the centre gripping driving piece orders about, realize the centre gripping of anchor clamps to the torsional spring, anchor clamps are when being corresponding to torsional spring torsion mechanism top, two interior chucks of anchor clamps are close together relatively under the centre gripping driving piece orders about, realize the unclamping of anchor clamps to the torsional spring.

By adopting the above further arrangement, the clamp is convenient to clamp the torsion spring, the clamp can move downwards and can be inserted into the inner hole of the torsion spring on the torsion spring adjusting station, the two inner chucks of the clamp are relatively far away from the inner ring of the torsion spring under the driving of the clamping driving piece and abut against the inner ring of the torsion spring, so that the clamp clamps the torsion spring, and the two inner chucks of the clamp are relatively close to each other, so that the torsion spring can be loosened.

The utility model discloses a further setting again: the clamp can be further provided with a pressing piece, the pressing piece can float up and down relative to the clamp and can be pressed by an elastic piece positioned above the pressing piece, the pressing piece can be pressed against the upper end face of a torsion spring arranged on the clamp so as to prevent the torsion spring from swinging upwards and deviating, and the pressing piece is an annular pressing pipe or a plurality of pressing pieces.

By adopting the above further arrangement, the pressing piece is convenient for realizing pressing on the upper end of the torsion spring, and the deviation of the upper end of the torsion spring in the upward swinging direction can be effectively prevented.

The utility model discloses a further setting again: the finished product discharging unit is provided with a discharging pipe and a discharging clamping jaw, and the discharging clamping jaw clamps and conveys the contact support assembled in the workpiece assembling cavity to the discharging pipe; finished product ejection of compact unit still has the unloading holder, drives the unloading holder lift driving piece that the unloading holder goes up and down to and the unloading holder translation driving piece that drive unloading holder level slided, be provided with first unloading clamping jaw and second unloading clamping jaw on the unloading holder, two clamping jaws are side by side and the interval sets up, through finished product ejection of compact unit operation, first unloading clamping jaw can realize sending out to discharging pipe department from the contact carrier of work piece assembly chamber centre gripping, this moment second unloading clamping jaw then correspond work piece assembly chamber department and can realize the centre gripping to intracavity contact carrier.

By adopting the further arrangement, the first blanking clamping jaw and the second blanking clamping jaw are arranged, so that when the blanking clamping seat translation driving piece drives the blanking clamping seat to feed materials in a sliding manner, firstly, the first blanking clamping jaw moves to send out the assembled contact support clamped in the workpiece assembly cavity to the discharge pipe to realize blanking, and at the moment, the second blanking clamping jaw corresponds to the workpiece assembly cavity to realize clamping of the contact support in the cavity; when the material is discharged again, the first discharging clamping jaw moves out of the vacant position, the second discharging clamping jaw moves to send the clamped contact support out of the discharging pipe to achieve discharging, two times of discharging operation is facilitated, and efficiency is high.

The utility model discloses a further setting again: and a vacancy detection unit is arranged between the finished product discharging unit and the contact support feeding unit and is provided with a vacancy detection sensor.

By adopting the above further arrangement, the vacancy detection sensor can detect whether materials exist in the workpiece assembly cavity or not, and judge whether the front finished product discharging unit completes the discharging operation or not, so that the vacancy of the workpiece assembly cavity is ensured, and the contact support feeding unit is convenient to feed.

The utility model discloses a further setting again: two workpiece assembling cavities are arranged on the workpiece assembling station,

the contact support feeding unit is provided with two parallel contact support conveying rails, each contact support conveying rail corresponds to one feeding clamping jaw group, and each feeding clamping jaw group comprises a first feeding clamping jaw and a second feeding clamping jaw;

the contact support detection unit is correspondingly provided with two contact support detection sensors;

the torsion spring feeding assembly unit is provided with two parallel torsion spring conveying rails, and each torsion spring conveying rail is corresponding to a torsion spring torsion mechanism;

the finished product discharging unit is provided with two groups of discharging clamping jaw groups, and each group of discharging clamping jaw group comprises a first discharging clamping jaw and a second discharging clamping jaw.

By adopting the above further arrangement, the workpiece assembly station is provided with the two workpiece assembly cavities, so that the workpieces can be assembled simultaneously, and the machining efficiency is higher.

Drawings

FIG. 1 is a diagram of the background art of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is a structural diagram of a turntable according to an embodiment of the present invention;

FIG. 4 is a diagram of a workpiece assembly station according to an embodiment of the present invention;

fig. 5 is a structural diagram of a contact holder feeding unit according to an embodiment of the present invention;

fig. 6 is a structural diagram of a loading jaw of a contact carrier according to an embodiment of the present invention;

FIG. 7 is a structural diagram of a torsion spring feeding and assembling unit according to an embodiment of the present invention;

FIG. 8 is a structural diagram of a torsion spring adjustment station and a torsion spring torsion mechanism according to an embodiment of the present invention;

FIG. 9 is a structural diagram of a torsion spring adjusting station according to an embodiment of the present invention;

fig. 10 is a partial enlarged view of a portion a of fig. 9;

FIG. 11 is a structural diagram of a torsion mechanism of the torsion spring according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a torsion mechanism of the torsion spring according to an embodiment of the present invention;

FIG. 13 is a structural diagram of a fixed clip part and a movable clip part according to an embodiment of the present invention;

fig. 14 is a diagram illustrating a structure of a mobile module according to an embodiment of the present invention;

fig. 15 is a structural diagram of a torsion spring feeding mechanism a according to an embodiment of the present invention;

FIG. 16 is a diagram of a clamp according to an embodiment of the present invention;

fig. 17 is a structural diagram of a torsion spring feeding mechanism B according to an embodiment of the present invention;

FIG. 18 is an assembly view of a torsion spring loop bar and a stripper tube according to an embodiment of the present invention;

FIG. 19 is a schematic diagram of a product discharge unit according to an embodiment of the present invention;

fig. 20 is a structural diagram of a discharging clamping jaw in the embodiment of the invention.

In the figure: the contact device comprises a torsion spring 1', a spiral ring part 11', a first supporting leg 12', a second supporting leg 13', a contact support 2', a shaft column 21' and a clamping block 22';

<xnotran> 1, 11, 12, 121, 13, 14, 15, 16, 17, 131, 132, 133, 134, 135, 136, 133a, 133b, a, 21, b, 31, 32, 33, d, A5, B6, 51, 52, 511, 61, 62, 63, 64, 641, 642, 321, 331, A71, B72, 53, 22, 23, 24, 241, 25, 34, 312, 621, 35, 36, 8, 81, 82, 91, 37, 38, 161, 162, 163, 164, 165, 162a, 162b. </xnotran>

Detailed Description

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

As shown in fig. 2-20, the automatic assembly machine for the torsion spring of the circuit breaker of the present invention comprises a frame 1, wherein the frame 1 is rotatably provided with a rotary table 11, the rotary table 11 is provided with a plurality of workpiece assembly stations 12 along the circumferential direction thereof at intervals, the workpiece assembly stations 12 are provided with workpiece assembly cavities 121, and the frame 1 is sequentially provided with a contact holder feeding unit 13, a contact holder detecting unit, a torsion spring feeding assembly unit 15 and a finished product discharging unit 16 along the circumferential direction of the rotary table 11;

the rotary table 11 is directly driven by a motor or the motor is driven by a belt pulley set;

the contact support feeding unit 13 feeds the contact support into the workpiece assembling cavity 121; the contact support feeding unit 13 comprises a contact support tray 131, a contact support conveying rail 132 and a contact support feeding clamping jaw 133, wherein the tray 131 is a vibrating tray, and the clamping jaw is used for clamping and conveying the contact support at the tail end of the contact support conveying rail 132 to the workpiece assembling cavity 121; the clamping jaw can rotate, so that the position adjustment of clamping and conveying the contact support to the workpiece assembly cavity 121 is realized; the contact holder feeding unit 13 further comprises a feeding holder 134, a feeding holder lifting driving part 135 for driving the feeding holder 134 to lift, and a feeding holder translation driving part 136 for driving the feeding holder 134 to horizontally slide, wherein a first feeding clamping claw 133a and a second feeding clamping claw 133b are rotatably arranged on the feeding holder 134, the two feeding clamping claws are arranged side by side and at intervals, through the operation of the contact holder feeding unit 13, the first feeding clamping claw 133a can realize the transfer of the contact holder clamped at the tail end of the contact holder conveying rail 132 to the workpiece assembly cavity 121, and at the moment, the second feeding clamping claw 133b can realize the clamping of the contact holder corresponding to the tail end of the contact holder conveying rail 132;

the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity 121 is in place;

the torsion spring feeding assembly unit 15 twists open the torsion spring and sends the twisted open torsion spring to the workpiece assembly station 12 to be clamped with the contact support in the workpiece assembly cavity 121, and the torsion spring feeding assembly unit 15 is provided with a torsion spring feeding mechanism 8, a torsion spring adjusting station a, a torsion spring torsion mechanism b and a moving module d;

the torsion spring feeding mechanism 8 is provided with a torsion spring tray 81 and a torsion spring conveying track 82 for supplying torsion springs to the torsion spring adjusting station a, and the conveying track 82 can be a conveyor belt;

the torsion spring adjusting station a corresponds to the outlet of the torsion spring conveying track 82, and the torsion spring adjusting station a is provided with: the adjusting surface 21 can be abutted with the support leg on the torsion spring for limiting, the limiting surface 22 is abutted with the periphery of the spiral ring part of the torsion spring for limiting, the limiting surface 22 is arranged in an arc shape, a corner 23 is formed at the joint of the limiting surface 22 and the adjusting surface 21, and the corner 23 is matched with the spiral ring part of the torsion spring and the bending part of the extending support leg; specifically, the adjusting surface 21 abuts against a second leg on the torsion spring, an auxiliary adjusting block 24 which abuts against and limits a first leg on the torsion spring is further arranged on the torsion spring adjusting station a, a leg abutting surface 241 on the auxiliary adjusting block 24 is obliquely arranged, and a passage opening 25 through which the second leg passes is formed between the auxiliary adjusting block 24 and the torsion spring adjusting station a;

the torsion spring torsion mechanism b is provided with a material pushing pipe 31 capable of lifting and moving, a fixed clamping piece 32 fixedly arranged and a movable clamping piece 33 capable of rotating, two support feet of a torsion spring on a station respectively abut against the fixed clamping piece 32 and the movable clamping piece 33, the torsion spring is turned on when the movable clamping piece 33 rotates to one side far away from the fixed clamping piece 32, and the twisted torsion spring is pushed out by the material pushing pipe 31;

a moving module d, which comprises a torsion spring feeding mechanism A5 and a torsion spring feeding mechanism B6,

the feeding mechanism A5 can feed the torsion spring adjusted on the torsion spring adjusting station a into the torsion spring torsion mechanism b, the feeding mechanism A5 is provided with a fixture 51 capable of moving up and down and a clamping driving part 52, the clamping driving part 52 can be a clamping jaw cylinder and an oil cylinder, the fixture 51 comprises two opposite inner chucks 511 inserted into inner holes of the torsion spring, the clamping driving part 52 is used for driving the two inner chucks 511 to be relatively close to or far away from,

wherein, when the clamp 51 is above the torsion spring adjusting station a, the clamp 51 can move downwards and be inserted into the torsion spring inner hole on the torsion spring adjusting station a, the two inner chucks 511 of the clamp 51 are relatively far away and abut against the torsion spring inner ring under the driving of the clamping driving member 52, so as to clamp the torsion spring by the clamp 51,

when the clamp 51 is positioned above the torsion mechanism b corresponding to the torsion spring, the two inner chucks 511 of the clamp 51 are relatively close together under the driving of the clamping driving element 52, so that the clamp 51 is loosened from the torsion spring;

specifically, the clamp 51 is provided with a pressing part 53, the pressing part 53 can float up and down relative to the clamp 51 and is abutted by an elastic part positioned above the pressing part, the elastic part can be a spring or an elastic sheet, the pressing part 53 can be abutted with the upper end surface of the spiral coil part of the torsion spring so as to prevent the torsion spring from swinging and deviating upwards, and the pressing part 53 is an annular pressing pipe or a plurality of pressing blocks;

specifically, the two pressing blocks are symmetrically arranged and integrally connected through the connecting block, the connecting block 531 penetrates between the two inner chucks 511, the pressing blocks can be in sliding fit with the guide blocks through the vertical guide rods, and the guide blocks are fixedly connected with the clamp mounting frame;

the torsion spring feeding mechanism B6 can be used for receiving and keeping a twisted-open torsion spring and sending the torsion spring to the workpiece assembling cavity 121 to be clamped with the contact support, the feeding mechanism B6 comprises a lifting movable torsion spring sleeve rod 61 and a stripping pipe 62, the stripping pipe 62 is sleeved on the torsion spring sleeve rod 61 and can move up and down relative to the sleeve rod 61, the torsion spring sleeve rod 61 can be sleeved with the torsion spring, the stripping pipe 62 can be abutted against the upper end face of the torsion spring, the feeding mechanism B6 further comprises a stripping pipe driving part 63 for driving the stripping pipe 62 to move up and down, the stripping pipe driving part 63 is an air cylinder and an oil cylinder which directly drive the stripping pipe 62 to move up and down, or a motor drives the stripping pipe to move up and down through a nut screw structure, the torsion spring sleeve rod 61 is provided with a clamping part 64 for clamping two support legs on the torsion spring, the clamping part can be integrally formed and also can be separately arranged, the clamping part 64 is provided with a first clamping surface 641 for one support leg of the torsion spring to abut against and a second clamping surface 642 for another support leg to abut against, the clamping part is fixed with the torsion spring sleeve rod 61 or integrally arranged, the clamping part can be detachably arranged on the connecting sleeve rod, so as well as to realize that the clamping surface can be replaced on the torsion spring sleeve rod, and the connecting sleeve rod without the connecting sleeve rod, so as different angles,

when the torsion spring loop bar 61 is located above the torsion spring torsion mechanism B, the torsion spring leg supporting surface 321 on the static clamping piece 32 is kept flush or exceeds the first clamping surface 641 on the clamping piece 64, and after the torsion spring leg supporting surface 331 on the dynamic clamping piece 33 rotates to be flush or exceed the second clamping surface 642 on the clamping piece 64, the torsion spring feeding mechanism B6 can receive the material pushing pipe 31 to push out the twisted torsion spring;

when the torsion spring sleeve rod 61 is located above the workpiece assembling cavity 121, the first engaging surface 641 and the second engaging surface 642 of the engaging member 64 respectively exceed or are flush with the two corresponding outer side surfaces of the engaging blocks on the contact carrier, and the stripper tube 62 can complete downward stripping of the torsion spring under the driving of the stripper tube driving member 63;

specifically, the pushing tube 31 is provided with a notch at one side corresponding to the clamping member, the notch extends in the circumferential direction of the pushing tube 31 and can be used for circumferential movement of one leg of the torsion spring, the notch can also be used for relative insertion of the clamping member 64, the pushing tube 31 is provided with a torsion spring sleeve column 34, the pushing tube 31 moves up and down relative to the torsion spring sleeve column 34, the torsion spring is positioned between the torsion spring sleeve column 34 and the pushing tube 31, the inner ring of the pushing tube 31 is also provided with a supporting table top 312 for supporting the bottom surface of the torsion spring, the outer diameter of the torsion spring sleeve column 34 is larger than or equal to the outer diameter of the torsion spring sleeve rod 61, one side of the stripping tube 62 is provided with an avoiding port 621 for avoiding the clamping member 64, so that the stripping tube 62 can move up and down on the torsion spring sleeve rod 61 without being interfered by the clamping member 64; the bottom surface of the discharging pipe 62 is also provided with a spring coil abutting surface abutting against the upper end surface of the spiral coil part of the torsion spring, and a support leg abutting surface abutting against the upper end surfaces of the two support legs of the torsion spring,

specifically, the movable clamping piece 33 and the fixed clamping piece 32 are positioned on the circumferential direction of the torsion spring, the torsion mechanism b of the torsion spring is further provided with a movable clamping piece rotating driving piece 35 and a driving wheel 36 in a rotating way, the movable clamping piece 33 is arranged on the periphery of the driving wheel 36 and deviates from the central position thereof, the driving wheel 36 and the movable clamping piece rotating driving piece are in direct or indirect transmission, the driving wheel 36 and the movable clamping piece rotating driving piece are in gear transmission,

the moving module d further comprises a main driving member A71 capable of driving the torsion spring feeding mechanism A5 and the torsion spring feeding mechanism B6 to simultaneously move up and down, and a main driving member B72 capable of driving the torsion spring feeding mechanism A5 and the torsion spring feeding mechanism B6 to horizontally move, wherein the main driving member can be directly driven by an air cylinder and an oil cylinder, or can be indirectly driven by a motor through a transmission structure such as a screw-nut structure or a belt pulley group structure, and the transmission structure is the prior art and is not introduced too much herein;

the finished product discharging unit 16 is used for sending out the contact support assembled with the torsion spring; the finished product discharging unit 16 is provided with a discharging pipe 161 and a discharging clamping jaw 162, and the discharging clamping jaw 162 clamps and conveys the contact holder assembled in the workpiece assembling cavity 121 to the discharging pipe 161; the finished product discharging unit 16 is further provided with a discharging holder 163, a discharging holder lifting driving part 164 for driving the discharging holder 163 to lift, and a discharging holder translation driving part 165 for driving the discharging holder 163 to horizontally slide, a first discharging clamping jaw 162a and a second discharging clamping jaw 162b are arranged on the discharging holder 163, the two clamping jaws are arranged side by side and at intervals, through the operation of the finished product discharging unit 16, the first discharging clamping jaw 162a can realize that a contact support clamped from the workpiece assembling cavity 121 is conveyed to the discharging tube 161, and at the moment, the second discharging clamping jaw 162b can realize clamping of the contact support in the cavity corresponding to the workpiece assembling cavity 121;

a vacancy detection unit is arranged between the finished product discharging unit 16 and the contact support feeding unit 13 and is provided with a vacancy detection sensor 17 which can give out a signal when detecting that the workpiece assembly cavity 121 is not vacant, namely, a material exists, so that a motor for driving the rotary table to rotate stops working;

each workpiece assembly station 12 has two workpiece assembly cavities 121,

the contact support feeding unit 13 has two parallel contact support conveying rails 132, each contact support conveying rail 132 corresponds to a group of feeding clamping jaw groups, and each group of feeding clamping jaw groups includes a first feeding clamping jaw 133a and a second feeding clamping jaw 133b;

the contact support detection unit is correspondingly provided with two contact support detection sensors 14;

the torsion spring feeding assembly unit 15 is provided with two parallel torsion spring conveying rails 82, and each torsion spring conveying rail 82 is corresponding to a torsion spring torsion mechanism;

the finished product discharging unit 16 has two sets of blanking clamping jaw sets, each set of blanking clamping jaw set includes a first blanking clamping jaw 162a and a second blanking clamping jaw 162b.

The assembly working principle is as follows:

the rotary table rotates to sequentially convey the workpiece assembly cavities to the positions of all processing units for assembly of the workpieces, and the contact support feeding unit feeds the contact support into the workpiece assembly cavities; the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity is in place; the torsion spring feeding mechanism A is used for feeding the adjusted torsion spring to a torsion spring torsion mechanism, the torsion of the torsion spring is realized by the torsion spring torsion mechanism, and then the twisted torsion spring is clamped on a contact support in a workpiece assembling cavity to realize assembling; the finished product discharging unit is used for discharging the assembled workpiece; whether materials exist in the workpiece assembling cavity can be detected by the vacancy detection sensor, whether the front finished product discharging unit completes discharging operation is judged, and therefore the vacancy of the workpiece assembling cavity is ensured, and the contact support feeding unit can be conveniently and conveniently fed.

The full-automatic assembly mode of the instrument is adopted, the efficiency is high, the assembly positions of the torsion springs and the contact supports can be ensured to be consistent, and the product precision is high.

In specific operation, the turntable 11 rotates to convey the workpiece assembly cavities 121 to each processing unit position in sequence for assembly of workpieces,

when the empty workpiece assembly cavity 121 is transferred to the contact support feeding unit 13, feeding is performed through the contact support tray 131, 132 discharging is performed through the contact support conveying track, clamping and conveying are performed through the feeding clamping claws 133, when the feeding clamping holder translation driving piece 136 drives the feeding clamping holder 134 to perform sliding feeding, the first feeding clamping claw 133a moves to transfer the contact support clamped at the tail end of the contact support conveying track 132 into the workpiece assembly cavity 121, and at the moment, the second feeding clamping claw 133b corresponds to the tail end of the contact support conveying track 132 to clamp the contact support; when the materials are fed again, the first feeding clamping jaw 133a moves out of the vacant position, the second feeding clamping jaw 133b moves to transfer the clamped contact support to the workpiece assembly cavity 121, two times of feeding operation are facilitated, the efficiency is high, when the materials are fed, the clamping jaws can rotate, the contact support is rotated to adjust the position when the materials are fed, the materials are conveniently fed into the workpiece assembly cavity 121 in a clamping manner, and the feeding positions of the contact supports are kept consistent each time;

then, the workpiece assembling cavity 121 provided with the contact support is rotated to a contact support detection unit, and whether the contact support in the workpiece assembling cavity 121 is in place is detected through a contact support detection sensor 14;

after the contact support detection unit detects that the contact support is in place, the workpiece assembly cavity 121 provided with the contact support rotates to the torsion spring feeding assembly unit 15, the torsion spring is fed by the torsion spring feeding mechanism 8, the position of the torsion spring is adjusted by the torsion spring adjusting station a, the support legs are abutted to the adjusting surface 21 through the abutting of the spiral ring part of the torsion spring against the limiting surface 22, the corners 23 are formed to effectively position the torsion spring, the rotation deviation of the torsion spring is avoided, the position of the torsion spring is adjusted, the torsion spring can be adjusted to a specified position each time, the clamp 51 corresponds to the position above the torsion spring adjusting station a, then through the operation of the moving module d, the clamp 51 can move downwards and is inserted into a torsion spring inner hole on the torsion spring adjusting station a, at the moment, two abutting blocks abut against the upper end surface of the spiral ring part of the torsion spring, two inner clamping heads 511 of the clamp 51 are relatively far away from and abut against the inner ring of the torsion spring under the driving part 52, the clamp 51 clamps clamp is clamped to clamp, then the feeding mechanism A5 moves to feed the torsion spring adjusted on the torsion spring adjusting station a torsion spring adjusted torsion spring into the torsion spring mechanism b, when the clamp 51 corresponds to the upper side above the torsion driving part, the torsion pushing mechanism b, the clamp 51 contacts with the clamping piece 52, the clamping piece of the clamping piece 34 b, and the static pushing piece 34 b, the clamping piece of the torsion spring is loosened; when the torsion spring is twisted, the torsion spring sleeve rod 61 corresponds to the upper part of the torsion spring torsion mechanism B, the torsion spring sleeve rod 61 corresponds to the torsion spring sleeve column 34, the torsion spring pin supporting surface 321 on the static clamping piece 32 is kept flush or exceeds the first clamping surface 641 on the clamping piece 64, then the dynamic clamping piece 33 is driven by the dynamic clamping piece rotating driving piece 35 to rotate to one side far away from the static clamping piece 32 so as to twist open the torsion spring, the torsion spring pin supporting surface 331 on the dynamic clamping piece 33 rotates to be flush or exceed the second clamping surface 642 on the clamping piece 64, at the moment, the torsion spring pin supporting surfaces of the static clamping piece 32 and the dynamic clamping piece 33 are kept flush or exceed the clamping surface on the clamping piece 64, the torsion spring 31 is driven to push out the twisted torsion spring upwards by the push-out pipe driving piece 37, the torsion spring twisted open torsion spring of the push-out pipe 31 can be received by the torsion spring feeding mechanism B6, the torsion spring sleeve rod 61 is provided for the torsion spring to be sleeved, the stripping pipe 62 is abutted against the upper end surface of the torsion spring, and the torsion spring is moved by the torsion spring feeding mechanism B6 to a target position (namely, on the contact support on the circuit breaker on the workpiece assembly cavity); when the torsion spring is assembled, the torsion spring sleeve rod 61 is arranged above the corresponding workpiece assembly cavity, the first clamping surface 641 and the second clamping surface 642 on the clamping piece 64 respectively exceed or are flush with the two corresponding outer side surfaces of the clamping blocks on the contact support, and the stripping pipe 62 can complete downward stripping of the torsion spring under the driving of the stripping pipe driving piece 63, so that the torsion spring is clamped on the contact support to complete assembly;

then, the workpiece assembly cavity 121 provided with the contact support and the torsion spring is rotated to the finished product discharging unit 16, the discharging holder 163 is driven to feed materials in a sliding manner through the discharging holder translation driving piece 165, the first discharging clamping jaw 162a moves to send the assembled contact support clamped in the workpiece assembly cavity 121 out to the discharging pipe 161 to realize discharging, and the second discharging clamping jaw 162b at the moment can clamp the contact support in the cavity corresponding to the workpiece assembly cavity 121; when discharging again, the first discharging clamping jaw 161a moves out of the vacancy, and the second discharging clamping jaw 162b moves to realize that the clamped contact support is sent out to the discharging pipe 161 to realize discharging, so that two times of discharging operation are facilitated, and the efficiency is high;

then the workpiece assembly cavity 121 after discharging is transferred to a vacancy detection unit, and when the vacancy detection sensor 17 detects that the workpiece assembly cavity 121 is not vacant, namely, a material exists, a signal is given, so that the motor driving the rotary table 11 to rotate stops working, and the procedures of one-time contact support feeding, torsion spring feeding and assembling, product discharging and detection are completed.

It should be noted that all the directional indicators (such as up, down, front, back, 8230; \8230;) in the description of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," "connected," and "secured" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. The utility model provides a circuit breaker torsional spring automatic assembly machine which characterized in that: the automatic feeding device comprises a rack, wherein a rotary table is rotatably arranged on the rack, a plurality of workpiece assembling stations are arranged on the rotary table at intervals along the circumferential direction of the rotary table, a workpiece assembling cavity is formed in the workpiece assembling stations, and a contact support feeding unit, a contact support detecting unit, a torsion spring feeding assembling unit and a finished product discharging unit are sequentially arranged on the rack along the circumferential direction of the rotary table;

the contact support feeding unit feeds the contact support into the workpiece assembly cavity;

the contact support detection unit is used for detecting whether the contact support in the workpiece assembly cavity is in place;

the torsion spring feeding and assembling unit twists the torsion spring and sends the twisted torsion spring to a workpiece assembling station to realize clamping with a contact support in a workpiece assembling cavity, the torsion spring feeding and assembling unit is provided with a torsion spring torsion mechanism and a moving module, the torsion spring torsion mechanism comprises a lifting and moving material pushing pipe and a fixed clamping piece which are fixedly arranged and can move in a rotating way, two support legs of the torsion spring on the station respectively abut against the fixed clamping piece and the moving clamping piece, and the torsion spring is twisted when the moving clamping piece rotates to one side far away from the fixed clamping piece, the material pushing pipe pushes out the twisted torsion spring, the moving module comprises a torsion spring feeding mechanism B, the feeding mechanism B can send the twisted torsion spring into the workpiece assembling cavity to be clamped with the contact support, the torsion spring feeding mechanism B comprises a lifting and moving torsion spring sleeve rod and a material releasing pipe, the releasing pipe is sleeved on the torsion spring sleeve rod and can move up and down relative to the torsion spring sleeve rod, the torsion spring sleeve rod can be sleeved with the torsion spring, the releasing pipe can be abutted against the upper end surface of the torsion spring, the feeding mechanism B further comprises a releasing pipe driving piece for driving the releasing pipe to be lifted, a second support leg is arranged on the torsion spring sleeve rod, and another support leg is arranged and a second clamping surface is arranged on the torsion spring clamping piece,

when the torsion spring sleeve rod corresponds to the upper part of the torsion spring torsion mechanism, the torsion spring foot supporting surface on the static clamping piece is kept flush or exceeds the first clamping surface on the clamping piece, and after the torsion spring foot supporting surface on the movable clamping piece rotates to be flush or exceed the second clamping surface on the clamping piece, the torsion spring feeding mechanism B can receive the material pushing pipe to push out the twisted-open torsion spring;

when the torsion spring sleeve rod is arranged above the contact support corresponding to the workpiece assembly cavity, the first clamping surface and the second clamping surface on the clamping piece respectively exceed or are flush with the corresponding two outer side surfaces of the clamping block on the contact support, and the stripping pipe can complete downward stripping of the torsion spring under the driving of the stripping pipe driving piece;

and the finished product discharging unit is used for sending out the contact support assembled with the torsion spring.

2. The automatic assembling machine for torsion springs of circuit breakers according to claim 1, characterized in that: the contact support feeding unit comprises a contact support material tray, a contact support conveying rail and a contact support feeding clamping jaw, and the clamping jaw is used for clamping and conveying the contact support at the tail end of the contact support conveying rail into the workpiece assembling cavity; the clamping jaw can rotate, and position adjustment of clamping and conveying the contact support to the workpiece assembly cavity is achieved.

3. The automatic assembling machine for torsion springs of circuit breakers according to claim 2, characterized in that: the contact support feeding unit further comprises a feeding clamping seat, a feeding clamping seat lifting driving piece for driving the feeding clamping seat to lift, and a feeding clamping seat translation driving piece for driving the feeding clamping seat to horizontally slide.

4. The automatic assembly machine for torsion springs of circuit breakers according to claim 1, 2 or 3, characterized in that: torsional spring feeding assembly unit still includes torsional spring feed mechanism and torsional spring adjustment station, torsional spring feed mechanism include torsional spring charging tray and torsional spring delivery track, torsional spring adjustment station corresponds torsional spring delivery track's exit, has the spacing face of periphery inconsistent with the spiral circle portion of torsional spring on it to and can with the spacing adjusting surface of stabilizer blade inconsistent of output torsional spring, spacing face with the adjusting surface form the turning, remove the module and still include torsional spring feeding mechanism A, feeding mechanism A can be used to send into torsional spring torsion mechanism with the torsional spring after the adjustment on the torsional spring adjustment station.

5. The automatic assembling machine for torsion springs of circuit breakers according to claim 4, characterized in that: the feeding mechanism A is provided with a clamp capable of lifting and moving and a clamping driving piece, the clamp comprises two opposite inner chucks inserted into the inner hole of the torsion spring, the clamping driving piece is used for driving the two inner chucks to be relatively close to or far away from each other,

wherein, when the clamp is arranged above the torsion spring adjusting station, the clamp can move downwards and is inserted into the inner hole of the torsion spring on the torsion spring adjusting station, two inner chucks of the clamp are relatively far away from each other and are propped against the inner ring of the torsion spring under the driving of the clamping driving piece, so as to realize the clamping of the torsion spring by the clamp,

when the clamp is arranged above the torsion spring torsion mechanism, the two inner chucks of the clamp are relatively close together under the driving of the clamping driving piece, so that the clamp can loosen the torsion spring.

6. The automatic assembly machine for torsion springs of circuit breakers according to claim 1, 2 or 3, characterized in that: the clamp can be further provided with a pressing piece, the pressing piece can float up and down relative to the clamp and can be pressed by an elastic piece positioned above the pressing piece, the pressing piece can be pressed against the upper end face of a torsion spring arranged on the clamp so as to prevent the torsion spring from swinging upwards and deviating, and the pressing piece is an annular pressing pipe or a plurality of pressing pieces.

7. The automatic assembly machine for torsion springs of circuit breakers according to claim 1, 2 or 3, characterized in that: the finished product discharging unit is provided with a discharging pipe and a discharging clamping jaw, and the discharging clamping jaw clamps and conveys the contact support assembled in the workpiece assembling cavity to the discharging pipe.

8. The automatic assembling machine for torsion springs of circuit breakers according to claim 7, characterized in that: finished product ejection of compact unit still has the unloading holder, drives the unloading holder lift driving piece that the unloading holder goes up and down to and the unloading holder translation driving piece that drive unloading holder level slided, be provided with first unloading clamping jaw and second unloading clamping jaw on the unloading holder, two clamping jaws are side by side and the interval sets up, through the operation of finished product ejection of compact unit, first unloading clamping jaw can realize sending out to discharging pipe department from the contact support of work piece assembly chamber centre gripping, this moment second unloading clamping jaw then correspond work piece assembly chamber department and can realize the centre gripping to intracavity contact support.

9. The automatic assembly machine for torsion springs of circuit breakers according to claim 1, 2 or 3, characterized in that: and a vacancy detection unit is arranged between the finished product discharging unit and the contact support feeding unit and is provided with a vacancy detection sensor.

10. The automatic assembly machine for torsion springs of circuit breakers according to claim 1, 2 or 3, characterized in that: each workpiece assembling station is provided with two workpiece assembling cavities,

the contact support feeding unit is provided with two parallel contact support conveying rails, each contact support conveying rail corresponds to one feeding clamping jaw group, and each feeding clamping jaw group comprises a first feeding clamping jaw and a second feeding clamping jaw;

the contact support detection unit is correspondingly provided with two contact support detection sensors;

the torsion spring feeding assembly unit is provided with two parallel torsion spring conveying rails, and each torsion spring conveying rail is corresponding to a torsion spring torsion mechanism;

the finished product ejection of compact unit has two sets of unloading clamping jaw groups, and every unloading clamping jaw group all includes first unloading clamping jaw and second unloading clamping jaw.

Images