Circuit breaker pull spring mounting device and method of mounting same

Abstract

The application belongs to the technical field of circuit breaker assembly, and discloses a circuit breaker tension spring mounting device and a mounting method thereof. The circuit breaker tension spring mounting device is used for mounting a tension spring of a movable contact of a circuit breaker. The circuit breaker tension spring mounting device comprises a movable contact positioning mechanism, a feeding mechanism, a tension spring transfer mechanism and a tension spring mounting mechanism. The movable contact positioning mechanism is configured to position a contact assembly and an armature respectively. The feeding mechanism comprises a vibrating disc assembly, which can carry and convey the tension spring. The tension spring transfer mechanism is used for receiving the tension spring conveyed by the feeding mechanism, can adjust the placement posture of the tension spring, and can convey the tension spring. The tension spring mounting mechanism is used for receiving the tension spring conveyed by the tension spring transfer mechanism, can stretch the tension spring, and can hang the stretched tension spring on the contact assembly and the armature. The device can automatically assemble the circuit breaker tension spring, and improves the consistency and assembly efficiency of the tension spring assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breaker assembly, in particular to a circuit breaker tension spring mounting device and a mounting method thereof. BACKGROUND

[0002] The moving contact of a molded case circuit breaker includes a contact assembly, an armature and a tension spring, and the tension spring is hung on the contact assembly and the armature. At present, the assembly of the molded case circuit breaker is mainly performed manually. An operator needs to use a tool to stretch the tension spring to make it longer, and then buckle the tension spring on the hooks of the contact assembly and the armature, and then withdraw the tool to make the tension spring tensioned.

[0003] Due to the inconsistent stretching force of the operator on the tension spring, the damage of the small tension spring, and other reasons, the consistency of the assembled product is poor. Relying on manual operation, the production efficiency is not high, and it is difficult to meet the increasing production requirements.

[0004] Therefore, a circuit breaker tension spring mounting device and a mounting method thereof are needed to solve the above problems. SUMMARY

[0005] An object of the present application is to provide a circuit breaker tension spring mounting device capable of automatically assembling the circuit breaker tension spring, thereby improving the consistency and assembly efficiency of the tension spring assembly.

[0006] To achieve this object, the present application adopts the following technical solutions:

[0007] The circuit breaker tension spring mounting device is used for mounting the tension spring of the moving contact of a circuit breaker, and comprises:

[0008] A moving contact positioning mechanism configured to position the contact assembly and the armature of the moving contact respectively;

[0009] A feeding mechanism comprising a vibrating disc assembly capable of carrying and conveying the tension spring;

[0010] A tension spring transfer mechanism used for receiving the tension spring conveyed by the feeding mechanism, capable of adjusting the placement posture of the tension spring and conveying the tension spring;

[0011] A tension spring mounting mechanism used for receiving the tension spring conveyed by the tension spring transfer mechanism, capable of stretching the tension spring and hanging the stretched tension spring on the contact assembly and the armature.

[0012] As an optional solution, the moving contact is positioned on a moving contact carrier, and the moving contact positioning mechanism comprises:

[0013] An armature positioning assembly for positioning the armature, the armature positioning assembly comprising a positioning fork and a positioning fork driving member, the positioning fork being connected to a driving end of the positioning fork driving member, the positioning fork driving member being capable of driving the positioning fork to move to clamp the armature;

[0014] A contact positioning assembly for positioning the contact assembly, the contact positioning assembly comprising a positioning jaw and a positioning driving member, the positioning jaw being connected to a driving end of the positioning driving member, a fixed end of the positioning driving member being connected to a driving end of the positioning fork driving member, the positioning fork driving member being capable of driving the positioning jaw to move towards or away from the contact assembly, the positioning driving member being capable of driving the positioning jaw to clamp the contact assembly.

[0015] As an option, the positioning fork is provided with a plurality of positioning forks, each of the positioning forks corresponding to positioning one of the armatures, the armature positioning assembly further comprising a positioning block, the positioning block being provided on the fixed end of the positioning driving member, the plurality of positioning forks being provided on the positioning block in an interval.

[0016] As an option, the positioning jaw is provided with a plurality of positioning jaws, each of the positioning jaws corresponding to positioning one of the contact assemblies, the positioning jaw comprising a first jaw and a second jaw, the first jaw and the second jaw cooperating to clamp the contact assembly, the contact positioning assembly further comprising a first connecting plate and a second connecting plate connected to the driving end of the positioning driving member, the plurality of first jaws being provided on the first connecting plate in an interval, the plurality of second jaws being provided on the second connecting plate in an interval, the positioning driving member being capable of driving the first connecting plate and the second connecting plate to move relative to each other, so that the first jaw and the second jaw cooperate to clamp or release the contact assembly one by one.

[0017] As an option, the vibration disc assembly comprises:

[0018] A vibration disc, a plurality of material channels being provided on the vibration disc along a length direction of the vibration disc, the tension spring being placed in the material channel;

[0019] A straight vibration member being connected to an underside of the vibration disc, the straight vibration member being capable of driving the vibration disc to vibrate, so that the tension spring moves along the material channel to an outlet end of the material channel.

[0020] As an option, the feeding mechanism further comprises a material separating assembly, the material separating assembly being configured to separate one of the tension springs at the outlet end of the material channel, the tension spring transferring mechanism taking away the separated tension spring.

[0021] As an option, the material separating assembly comprises:

[0022] The material distribution block is provided with a plurality of material distribution grooves, and the guard plate can be arranged on the upper side opening of the material distribution groove. Each material distribution groove is connected to a material channel. The middle part of the tension spring can be exposed from the avoiding hole.

[0023] The material distribution driving member is arranged on the lower side of the material distribution block. The material distribution block is connected to the driving end of the material distribution driving member. The material distribution driving member can drive the material distribution block to move up and down, so that the material distribution groove can be higher than the material channel.

[0024] The guard plate driving member is arranged on the material distribution block. The driving end of the guard plate driving member is connected to the guard plate. The guard plate driving member can drive the guard plate to move relative to the material distribution block to avoid the material distribution groove.

[0025] As an optional solution, the tension spring transfer mechanism includes a plurality of suction blocks and a rotating assembly. The suction blocks can adsorb the tension spring conveyed by the feeding mechanism. The rotating assembly can drive the suction blocks to rotate. The rotating assembly includes:

[0026] A rotating fixed frame;

[0027] A plurality of rotating shafts and a plurality of gears. The rotating shafts pass through the rotating fixed frame. The gears are correspondingly arranged on the upper end of the rotating shafts. The suction blocks are connected to the lower end of the rotating shafts.

[0028] A rack. The rack is simultaneously engaged with a plurality of gears. The movement of the rack relative to the rotating fixed frame can drive the gears to rotate.

[0029] A rack driving member. The fixed end of the rack driving member is arranged on the rotating fixed frame. The driving end of the rack driving member is connected to the rack. The rack driving member can drive the rack to move.

[0030] As an optional solution, the tension spring transfer mechanism further includes a turnover assembly. The turnover assembly can drive the rotating assembly to turn over. The turnover assembly includes:

[0031] A turnover fixed frame;

[0032] A turnover shaft. The turnover shaft is rotatably arranged on the turnover fixed frame. The turnover shaft extends along the arrangement direction of a plurality of suction blocks. One end of the turnover shaft is connected to the rotating fixed frame.

[0033] A turnover driving member. The other end of the turnover shaft is connected to the driving end of the turnover driving member. The turnover driving member can drive the turnover shaft to rotate.

[0034] As an option, the tensile spring transfer mechanism further comprises a transfer assembly for conveying the tensile spring attracted by the suction block to the tensile spring mounting mechanism, the transfer assembly comprising:

[0035] A transfer fixing frame;

[0036] A sliding plate slidingly arranged on the transfer fixing frame, the sliding plate being capable of sliding between the feeding mechanism and the tensile spring mounting mechanism, the turnover fixing frame and the turnover driving member being arranged on the sliding plate;

[0037] A sliding driving member, a driving end of the sliding driving member being connected to the sliding plate, the sliding driving member being capable of driving the sliding plate to slide along the transfer fixing frame.

[0038] As an option, the tensile spring mounting mechanism comprises:

[0039] A tensile clamping jaw comprising a third clamping jaw and a fourth clamping jaw, the third clamping jaw and the fourth clamping jaw being capable of clamping two ends of the tensile spring respectively;

[0040] A tensile driving member, the third clamping jaw and the fourth clamping jaw being connected to a driving end of the tensile driving member, the tensile driving member being capable of driving the third clamping jaw and the fourth clamping jaw to approach or move away from each other;

[0041] A linear movement module, a fixed end of the tensile driving member being arranged at a driving end of the linear movement module, the linear movement module being capable of driving the tensile clamping jaw to move linearly to approach or move away from the movable contact positioning mechanism.

[0042] Another object of the present application is to provide a circuit breaker tensile spring mounting method, which uses the circuit breaker tensile spring mounting device as described above to mount the tensile spring.

[0043] To achieve the above object, the present application uses the following technical solutions:

[0044] A circuit breaker tensile spring mounting method based on the circuit breaker tensile spring mounting device as described above, comprising:

[0045] Conveying the movable contact to the movable contact positioning mechanism, the movable contact positioning mechanism positioning the contact assembly and the armature of the movable contact respectively, so that the contact assembly and the armature are both in a fully positioned state;

[0046] Placing the tensile spring on the vibrating disc assembly, the vibrating disc assembly conveying the tensile spring by vibration;

[0047] The pull spring transfer mechanism receives the pull spring from the vibration disc assembly, adjusts the placement posture of the pull spring, so that the placement posture of the pull spring is suitable for the pull spring mounting mechanism to obtain, and the pull spring transfer mechanism delivers the pull spring to the pull spring mounting mechanism.

[0048] The pull spring mounting mechanism receives the pull spring delivered by the pull spring transfer mechanism, stretches the pull spring, and hangs the stretched pull spring on the contact assembly and the armature at the movable contact positioning mechanism.

[0049] Beneficial effects:

[0050] The circuit breaker pull spring mounting device provided by the application positions the contact assembly and the armature by the movable contact positioning mechanism, limits the random movement between the contact assembly and the armature, the feeding mechanism feeds the pull spring, the pull spring transfer mechanism obtains the pull spring from the feeding mechanism, adjusts the placement posture of the pull spring to a position suitable for the pull spring mounting mechanism to obtain, the pull spring transfer mechanism delivers the pull spring in the adjusted posture to the pull spring mounting mechanism, the pull spring mounting mechanism stretches the pull spring and hangs the stretched pull spring on the contact assembly and the armature, and the installation of the pull spring is completed. The feeding and installation processes do not require manual operation, realize the automatic installation of the pull spring, are beneficial to improving the consistency of the pull spring assembly effect, and greatly improve the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 is a schematic diagram of the internal structure of the circuit breaker provided by the embodiment of the application;

[0052] Figure 2 is a schematic diagram of the three-dimensional structure of the movable contact provided by the embodiment of the application;

[0053] Figure 3 is a schematic diagram of the three-dimensional structure of the circuit breaker pull spring mounting device provided by the embodiment of the application;

[0054] Figure 4 is a schematic diagram of the three-dimensional structure of the movable contact carrier carrying the movable contact provided by the embodiment of the application;

[0055] Figure 5 is a schematic diagram of the structure of the movable contact positioning mechanism from one perspective provided by the embodiment of the application;

[0056] Figure 6 is a schematic diagram of the structure of the movable contact positioning mechanism from another perspective provided by the embodiment of the application;

[0057] Figure 7 is a schematic diagram of the structure of the movable contact positioning mechanism from another perspective provided by the embodiment of the application;

[0058] Figure 8Figure 1 is a structural schematic diagram of the feeding mechanism from one perspective according to an embodiment of the present application;

[0059] Figure 9 Figure 2 is a structural schematic diagram of the feeding mechanism from another perspective according to an embodiment of the present application;

[0060] Figure 10 Figure 3 is a three-dimensional structural schematic diagram of the extension spring transfer mechanism according to an embodiment of the present application;

[0061] Figure 11 Figure 4 is a three-dimensional structural schematic diagram of the suction block according to an embodiment of the present application;

[0062] Figure 12 Figure 5 is a three-dimensional structural schematic diagram of the extension spring installation mechanism according to an embodiment of the present application;

[0063] Figure 13 Figure 6 is an enlarged structural schematic diagram of position A in Figure 5. Figure 12 Figure 7 is a three-dimensional structural schematic diagram of the circuit breaker according to an embodiment of the present application.

[0064]

[0065] 10, circuit breaker; 100, movable contact; 110, contact assembly; 1101, contact hook; 120, armature; 1201, armature hook; 130, extension spring; 131, round eye; 200, movable contact carrier; 210, limiting groove; 220, positioning column;

[0066] 1, movable contact positioning mechanism; 11, armature positioning assembly; 111, positioning fork; 112, positioning fork driving member; 113, positioning block; 12, contact positioning assembly; 121, positioning clamping jaw; 1211, first clamping jaw; 1212, second clamping jaw; 122, positioning driving member; 123, first connecting plate; 124, second connecting plate;

[0067] 2, feeding mechanism; 21, vibrating disc assembly; 211, vibrating disc; 2111, material channel; 212, straight vibrating member; 213, fixed bottom plate; 214, cover plate; 22, material distribution assembly; 221, material distribution block; 2211, material distribution groove; 222, guard plate; 2221, avoiding hole; 223, material distribution driving member; 224, guard plate driving member;

[0068] ​3, tension spring transfer mechanism; 31, suction block; 311, semicircular corner; 32, rotating assembly; 321, rotating fixed frame; 322, rotating shaft; 323, gear; 324, rack; 325, rack driving member; 326, connecting block; 33, overturning assembly; 331, overturning fixed frame; 332, overturning shaft; 333, overturning driving member; 334, limiting plate; 335, limiting column; 34, transfer assembly; 341, transfer fixed frame; 3411, linear guide rail; 3412, mounting bottom frame; 3413, mounting top plate; 3414, sliding support plate; 3415, adjusting block; 342, sliding plate; 343, sliding driving member; 344, driving support plate; 345, buffer;

[0069] 4, tension spring installation mechanism; 41, stretching clamp jaw; 411, third clamp jaw; 4111, narrow mouth groove; 412, fourth clamp jaw; 42, stretching driving member; 43, linear movement module; 44, first support plate; 45, first mounting plate. DETAILED DESCRIPTION

[0070] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not in any way limiting of the application. Furthermore, it should be understood that in the description, only those parts relevant to the application are shown and described, and other parts are omitted.

[0071] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0072] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0073] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0074] As shown in Figure 1 A circuit breaker 10 is shown, which is provided with three sets of movable contacts 100. As shown in Figure 2 The movable contact 100 includes a contact assembly 110, an armature 120, and a tension spring 130. The contact assembly 110 includes a contact hook 1101, the armature 120 includes an armature hook 1201, and the two ends of the tension spring 130 each have a round mouth ring 131, and the two round mouth rings 131 are hung on the armature hook 1201 and the contact hook 1101, respectively. The armature 120 is in a movable state before the tension spring 130 is installed, and when the contact assembly 110 is placed flat, the armature hook 1201 and the contact hook 1101 are not on the same vertical line. The tension spring 130 is in a compressed state before installation and in a stretched and tightened state after installation. The tension spring 130 needs to be stretched to a certain length before installation to enable the two ends of the tension spring 130 to be hung on the armature hook 1201 and the contact hook 1101.

[0075] To this end, as shown in Figure 3 The present embodiment provides a circuit breaker tension spring installation device for installing the tension spring 130 of the movable contact 100 of the circuit breaker 10. The circuit breaker tension spring installation device includes a movable contact positioning mechanism 1, a feeding mechanism 2, a tension spring transfer mechanism 3, and a tension spring installation mechanism 4. The movable contact positioning mechanism 1 is used to position the contact assembly 110 and the armature 120 of the movable contact 100, respectively. The feeding mechanism 2 includes a vibrating disc assembly 21, which can carry and transport the tension spring 130. The tension spring transfer mechanism 3 is used to receive the tension spring 130 transported by the feeding mechanism 2, and can adjust the placement posture of the tension spring 130 and transport the tension spring 130. The tension spring installation mechanism 4 is used to receive the tension spring 130 transported by the tension spring transfer mechanism 3, and can stretch the tension spring 130 and hang the stretched tension spring 130 on the contact assembly 110 and the armature 120.

[0076] The movable contact positioning mechanism 1 is arranged to position the contact assembly 110 and the armature 120 respectively, and to limit the random movement between the contact assembly 110 and the armature 120; the feeding mechanism 2 feeds the tension spring 130, and then the tension spring transfer mechanism 3 obtains the tension spring 130 from the feeding mechanism 2 and adjusts the placement posture of the tension spring 130 to a position suitable for the tension spring installation mechanism 4 to obtain, the tension spring transfer mechanism 3 transports the tension spring 130 in the adjusted posture to the tension spring installation mechanism 4, and the tension spring installation mechanism 4 stretches the tension spring 130 and then hangs the tension spring 130 on the contact assembly 110 and the armature 120, thereby completing the installation of the tension spring 130. The feeding and installation processes do not require manual operation, realize the automatic installation of the tension spring 130, are beneficial to improving the consistency of the tension spring 130 assembly effect, and greatly improve the assembly efficiency.

[0077] As shown in Figure 4 , in order to bear the movable contact 100, the movable contact 100 is limited to be transported on the movable contact carrier 200, the movable contact carrier 200 is provided with a limiting groove 210 and a positioning column 220, the contact assembly 110 and the armature 120 are limited in the limiting groove 210 and are limited by the positioning column 220, so that the contact assembly 110 and the armature 120 are relatively stable on the movable contact carrier 200. Specifically, the movable contact carrier 200 can be transported through a ring-shaped conveying line body to realize the circulation conveying of the movable contact carrier 200. The ring-shaped conveying line body is a conveying means commonly used in the prior art, and the specific structure and working principle thereof will not be described in detail in the embodiment.

[0078] The structure and working principle of the movable contact positioning mechanism 1, the feeding mechanism 2, the tension spring transfer mechanism 3 and the tension spring installation mechanism 4 will be described in detail below. Figures 5-13

[0079] As shown in Figures 5-7 , it is a structural schematic view of the movable contact positioning mechanism 1.

[0080] As shown in Figure 5 ​As shown, the moving contact positioning mechanism 1 comprises an armature positioning assembly 11 and a contact positioning assembly 12, the armature positioning assembly 11 is used for positioning the armature 120, and the armature positioning assembly 11 comprises a positioning fork 111 and a positioning fork driving member 112, the positioning fork 111 is connected to the driving end of the positioning fork driving member 112, and the positioning fork driving member 112 can drive the positioning fork 111 to move to clamp the armature 120, so that the armature hook 1201 and the contact hook 1101 are substantially located on the same vertical line, and at the same time, the armature 120 is prevented from shaking forward and backward, thereby facilitating the installation of the tension spring 130 on the armature hook 1201 and the contact hook 1101 by the tension spring installation mechanism 4. Specifically, the positioning fork driving member 112 can be a pneumatic cylinder or an electric cylinder, and the telescopic driving end of the pneumatic cylinder or the electric cylinder can drive the positioning fork 111 to reciprocate, so as to be close to the armature 120 for positioning or move away from the armature 120 to continue moving the moving contact carrier 200 to the next process.

[0081] The contact positioning assembly 12 is used for positioning the contact assembly 110, and the contact positioning assembly 12 comprises a positioning clamp jaw 121 and a positioning driving member 122, the positioning clamp jaw 121 is connected to the driving end of the positioning driving member 122, and the fixed end of the positioning driving member 122 is connected to the driving end of the positioning fork driving member 112, the positioning fork driving member 112 can drive the positioning clamp jaw 121 to move close to or away from the contact assembly 110, and the positioning driving member 122 can drive the positioning clamp jaw 121 to clamp the contact assembly 110. When the moving contact carrier 200 is in place, the positioning fork driving member 112 drives the positioning driving member 122 to move to the right, thereby driving the positioning fork 111 and the positioning clamp jaw 121 to move to the right, the positioning fork 111 abuts against the armature 120, and the positioning clamp jaw 121 is located on both sides of the contact assembly 110, then the positioning driving member 122 drives the positioning clamp jaw 121 to act to clamp the contact assembly 110, thereby fixing the contact assembly 110. In the embodiment, the positioning driving member 122 can be a clamp jaw pneumatic cylinder.

[0082] As shown in the figure, Figure 6 In order to be able to fix multiple armatures 120 on the moving contact carrier 200 at the same time, the positioning fork 111 is provided with multiple positioning forks 111, each of which corresponds to positioning one armature 120, and the armature positioning assembly 11 further comprises a positioning block 113, which is arranged on the fixed end of the positioning driving member 122, and the multiple positioning forks 111 are arranged on the positioning block 113 in a spaced manner, so that when the positioning driving member 122 drives the positioning block 113 to move, the multiple positioning forks 111 can be driven to move synchronously. In the embodiment, the moving contact carrier 200 can carry three moving contacts 100, and correspondingly, the positioning fork 111 is provided with three positioning forks 111, but the number of positioning forks 111 is not limited to this, and in actual work, the corresponding number of positioning forks 111 can be arranged according to the number of moving contacts 100 carried by the moving contact carrier 200.

[0083] In combination withFigure 6 And Figure 7 In order to be able to fix multiple contact assemblies 110 on the moving contact carrier 200 at the same time, the positioning clamps 121 are provided in multiple numbers, each positioning clamp 121 corresponds to positioning one contact assembly 110, the positioning clamp 121 comprises a first clamp 1211 and a second clamp 1212, the first clamp 1211 and the second clamp 1212 cooperate to clamp the contact assembly 110, the contact positioning assembly 12 further comprises a first connecting plate 123 and a second connecting plate 124 connected to the driving end of the positioning driving member 122, multiple first clamps 1211 are arranged on the first connecting plate 123, multiple second clamps 1212 are arranged on the second connecting plate 124, and the positioning driving member 122 can drive the first connecting plate 123 and the second connecting plate 124 to move relatively, so that the first clamps 1211 and the second clamps 1212 correspondingly clamp or release the contact assemblies 110. By arranging the first connecting plate 123 and the second connecting plate 124, one positioning driving member 122 can drive multiple sets of positioning clamps 121 to move synchronously.

[0084] As Figure 8 And Figure 9 Fig. 2 is a structural schematic diagram of the feeding mechanism 2.

[0085] As Figure 8 Fig. 3 shows that the vibration disc assembly 21 comprises a fixed bottom plate 213, a vibration disc 211 and a straight vibrating piece 212, the straight vibrating piece 212 is arranged on the fixed bottom plate 213, the straight vibrating piece 212 is connected to the lower side of the vibration disc 211, the vibration disc 211 is provided with multiple material channels 2111 along the length direction thereof, the tension spring 130 is placed in the material channel 2111, and the straight vibrating piece 212 can drive the vibration disc 211 to vibrate, so that the tension spring 130 moves along the material channel 2111 to the outlet end of the material channel 2111.

[0086] Specifically, as shown in Figure 9 The material channel 2111 is a stepped groove arranged on the vibration disc 211, and the tension spring 130 is placed horizontally in the stepped groove and can roll forward under the vibration of the vibration disc 211. The vibration disc assembly 21 further comprises multiple cover plates 214, two cover plates 214 are arranged on the upper side of each material channel 2111, the two cover plates 214 are arranged on the two sides of the stepped groove, and the two cover plates 214 have a gap therebetween to form a hollow portion. The tension spring 130 in the stepped groove can be adjusted or taken out from the hollow portion, so as to facilitate handling of unexpected conditions such as jamming of the tension spring 130.

[0087] Further, as shown in Figure 8 The feeding mechanism 2 further comprises a material separating assembly 22, which is used to separate one tension spring 130 at the outlet end of the material channel 2111, so that the tension spring transferring mechanism 3 takes away the separated tension spring 130.

[0088] In particular, please continue to refer to Figure 8 and Figure 9 , the distribution assembly 22 includes a distribution block 221, a guard plate 222, a distribution drive 223 and a guard plate drive 224, the distribution block 221 is provided with a plurality of distribution grooves 2211, the guard plate 222 can be provided on the upper side of the distribution groove 2211, each distribution groove 2211 is connected to a lane 2111, the tension spring 130 in the lane 2111 can be moved into the distribution groove 2211, the guard plate 222 is provided with a relief hole 2221, the middle part of the tension spring 130 is exposed from the relief hole 2221, so that the tension spring transfer mechanism 3 can contact the tension spring 130 from the relief hole 2221. The distribution drive 223 is provided on the lower side of the distribution block 221, the distribution block 221 is connected to the driving end of the distribution drive 223, the distribution drive 223 can drive the distribution block 221 to move up and down, so that the distribution groove 2211 can be higher than the lane 2111, thereby preventing the tension spring 130 in the lane 2111 from entering the distribution groove 2211. The fixed end of the guard plate drive 224 is provided on the distribution block 221, the driving end of the guard plate drive 224 is connected to the guard plate 222, the guard plate drive 224 can drive the guard plate 222 to move relative to the distribution block 221 to avoid the distribution groove 2211. Preferably, the guard plate drive 224 is provided with two, two guard plate drives 224 are respectively provided at both ends of the distribution block 221, two guard plate drives 224 jointly drive the guard plate 222 to move, so that the guard plate 222 moves more smoothly.

[0089] When working, once the frontmost tension spring 130 in the lane 2111 enters the distribution groove 2211, the distribution drive 223 immediately drives the distribution block 221 to move up, the tension spring transfer mechanism 3 moves to the distribution groove 2211 to contact the tension spring 130 through the relief hole 2221, the guard plate drive 224 drives the guard plate 222 to move left to avoid the distribution groove 2211, the tension spring transfer mechanism 3 takes away the tension spring 130 in the distribution groove 2211. Then, the distribution drive 223 drives the distribution block 221 to move down to make the distribution groove 2211 flush with the lane 2111, the guard plate drive 224 drives the guard plate 222 to move right to cover the distribution groove 2211, and continues to receive the next tension spring 130.

[0090] As shown in Figure 10 and Figure 11 , it is a structural schematic diagram of the tension spring transfer mechanism 3.

[0091] As shown in Figure 10 and Figure 11As shown, the tension spring transferring mechanism 3 comprises a plurality of suction blocks 31 capable of sucking the tension spring 130 conveyed by the feeding mechanism 2. The lower end of the suction block 31 is provided with a semicircular corner 311, and the inner diameter of the semicircular corner 311 is not less than the outer diameter of the tension spring 130, so that the suction block 31 can be clamped on the outside of the tension spring 130. The semicircular corner 311 of the suction block 31 is embedded with a magnet, so that the suction block 31 can suck the tension spring 130 into the semicircular corner 311.

[0092] Further, as shown in Figure 10 , the tension spring transferring mechanism 3 further comprises a rotating assembly 32 capable of driving the suction block 31 to rotate, so as to adjust the placement posture of the tension spring 130 sucked by the suction block 31.

[0093] Specifically, as shown in Figure 10 , the rotating assembly 32 comprises a rotating fixed frame 321, a plurality of rotating shafts 322, a plurality of gear wheels 323, a rack 324 and a rack driving member 325. The rotating fixed frame 321 is provided in an L shape, the rotating shafts 322 are arranged through the rotating fixed frame 321, the gear wheels 323 are correspondingly arranged on the upper end of the rotating shafts 322, and the suction blocks 31 are connected to the lower end of the rotating shafts 322. The rack 324 is engaged with the plurality of gear wheels 323, and the movement of the rack 324 relative to the rotating fixed frame 321 can drive the gear wheels 323 to rotate. The fixed end of the rack driving member 325 is arranged on the rotating fixed frame 321, the driving end of the rack driving member 325 is connected to the rack 324 through a connecting block 326, and the rack driving member 325 can drive the rack 324 to move. The rack driving member 325 can be a pneumatic cylinder or an electric cylinder.

[0094] The rack driving member 325 drives the rack 324 to move linearly through the connecting block 326, so that the rotation of the gear wheels 323 drives the rotating shafts 322 to rotate, thereby realizing the 0-90 degree rotation of the three suction blocks 31. Generally, the tension spring 130 is placed in the forward-backward direction in the distribution groove 2211, and when the suction block 31 sucks up the tension spring 130, the tension spring 130 is still in the posture of being placed in the forward-backward direction. After the rotating shaft 322 drives the suction block 31 to rotate by 90 degrees, the tension spring 130 will be placed in the posture of being placed in the left-right direction.

[0095] Since each suction block 31 is provided with a rotating shaft 322, the angle of each suction block 31 can be adjusted individually, thereby ensuring that the angles of the three suction blocks 31 after adjustment are consistent.

[0096] Further, please refer to Figure 10 , the tension spring transferring mechanism 3 further comprises a turnover assembly 33 capable of driving the rotating assembly 32 to turn over, so that the suction block 31 is turned over to the right side of the rotating fixed frame 321, and the tension spring 130 is placed in the posture of being placed in the vertical direction.

[0097] Specifically, as shown inFigure 10 As shown, the turnover assembly 33 comprises a turnover fixing frame 331, a turnover shaft 332 and a turnover driving member 333, the turnover shaft 332 is rotationally arranged on the turnover fixing frame 331, the turnover shaft 332 extends along the arrangement direction of the plurality of suction blocks 31, i.e. along the front-rear direction, one end of the turnover shaft 332 is connected to the rotation fixing frame 321, the other end of the turnover shaft 332 is connected to the driving end of the turnover driving member 333, the turnover driving member 333 can drive the turnover shaft 332 to rotate, thereby driving the rotation assembly 32 and the suction block 31 to overturn as a whole, further adjusting the position and posture of the tension spring 130, and the turnover driving member 333 is preferably a rotary cylinder. As described above, after the suction block 31 is rotated by 90 degrees by the rotary shaft 322, the tension spring 130 changes to a posture of extending and placing left and right, and then is turned up by 90 degrees by the turnover shaft 332, so that the tension spring 130 is in a posture of extending and placing vertically, facilitating the subsequent tension spring installation mechanism 4 to obtain the tension spring 130.

[0098] Preferably, as shown in Figure 10 The turnover assembly 33 further comprises two limiting plates 334 and two limiting columns 335, the two limiting columns 335 are arranged on the two sides of the turnover shaft 332, and the two limiting plates 334 are arranged on the turnover shaft 332 and are arranged at a 90-degree angle between them. When the turnover shaft 332 rotates to the right, the right limiting plate 334 will abut against the right limiting column 335, at this time, the rotary shaft 322 is in a vertical state, facilitating the suction block 31 connected to the lower end of the rotary shaft 322 to suck the tension spring 130 from the distribution groove 2211; when the turnover shaft 332 rotates to the left, the left limiting plate 334 will abut against the left limiting column 335, at this time, the rotary shaft 322 rotates to a horizontal state, and the tension spring 130 is in a vertical posture, facilitating the subsequent tension spring installation mechanism 4 to obtain the tension spring 130.

[0099] Further, as shown in Figure 10 The tension spring transfer mechanism 3 further comprises a transfer assembly 34, which is used to transport the tension spring 130 sucked by the suction block 31 to the tension spring installation mechanism 4.

[0100] Specifically, as shown in Figure 10As shown, the transfer assembly 34 comprises a transfer fixing frame 341, a sliding plate 342 and a sliding driving member 343, the sliding plate 342 is slidingly arranged on the transfer fixing frame 341, the sliding plate 342 can slide between the feeding mechanism 2 and the tension spring mounting mechanism 4, the limiting column 335, the turnover fixing frame 331 and the turnover driving member 333 are arranged on the sliding plate 342, the fixed end of the sliding driving member 343 is fixedly arranged on the driving support plate 344, the driving end of the sliding driving member 343 is connected to the sliding plate 342, and the sliding driving member 343 can drive the sliding plate 342 to slide along the transfer fixing frame 341. Optionally, a linear guide rail 3411 is arranged on the upper side of the transfer fixing frame 341, and the sliding plate 342 slides along the linear guide rail 3411. The sliding driving member 343 can be a pneumatic cylinder or an electric cylinder, which can drive the sliding plate 342 to slide stably.

[0101] In order to adjust the position of the sliding plate 342 moving forward and backward, as shown in Figure 10 As shown, the transfer assembly 34 further comprises two buffers 345, which are arranged at the front and rear ends of the sliding plate 342 respectively. During the sliding process of the sliding plate 342, when the buffer 345 abuts against the transfer fixing frame 341, the sliding plate 342 stops moving, thereby achieving the purpose of adjusting the sliding distance of the sliding plate 342.

[0102] In order to make the height of the tension spring 130 suitable for the subsequent acquisition of the tension spring mounting mechanism 4, it is necessary to adjust the height position of the suction block 31. Therefore, the structure of the transfer fixing frame 341 is improved in this embodiment to adapt to the adjustment of the overall height of the device. Specifically, as shown in Figure 12 As shown, the transfer fixing frame 341 comprises a mounting bottom frame 3412, a mounting top plate 3413, two sliding support plates 3414 and two adjusting blocks 3415. The mounting bottom frame 3412 is arranged in a U shape, the two adjusting blocks 3415 are arranged on the two sides of the mounting bottom frame 3412 respectively, the two sliding support plates 3414 are arranged on the two sides of the mounting bottom frame 3412 and above the adjusting blocks 3415, the sliding support plates 3414 are provided with waist-shaped holes extending in the vertical direction, and the vertical height of the sliding support plates 3414 relative to the mounting bottom frame 3412 can be adjusted through the waist-shaped holes. The mounting top plate 3413 is arranged on the upper side of the two sliding support plates 3414, and the linear guide rail 3411 is arranged on the upper side of the mounting top plate 3413.

[0103] The adjusting block 3415 is provided with a threaded hole in the vertical direction, a bolt or a screw is threadedly connected in the threaded hole and the upper end thereof penetrates out of the adjusting block 3415 and abuts against the sliding support plate 3414, and the vertical height of the sliding support plate 3414 can be adjusted by adjusting the length of the bolt or the screw extending out of the adjusting block 3415, thereby adjusting the overall height of the device and achieving the purpose of adjusting the height position of the suction block.

[0104] AsFigure 13 and Figure 12 Fig. 4 shows a structural schematic diagram of the tension spring mounting mechanism 4.

[0105] As shown in Figure 13 , the tension spring mounting mechanism 4 comprises a tensioning clamp jaw 41, a tensioning driving member 42 and a linear movement module 43. The tensioning clamp jaw 41 comprises a third clamp jaw 411 and a fourth clamp jaw 412, which can clamp the two ends of the tension spring 130 respectively. The third clamp jaw 411 and the fourth clamp jaw 412 are connected to the driving end of the tensioning driving member 42, and the tensioning driving member 42 can drive the third clamp jaw 411 and the fourth clamp jaw 412 to move close to or away from each other to stretch the tension spring 130. The tensioning driving member 42 is preferably an electric claw. Compared with a driving member such as a clamp cylinder, the driving stroke of the electric claw is more accurate, which is conducive to ensuring the flexible stretching of the tensioning clamp jaw 41 on the tension spring 130.

[0106] Specifically, as shown in Figure 12 , the third clamp jaw 411 and the fourth clamp jaw 412 are each provided with a narrow-mouth groove 4111, and the round mouth ring 131 of the tension spring 130 is clamped in the narrow-mouth groove 4111. When the third clamp jaw 411 and the fourth clamp jaw 412 move away from each other to stretch the tension spring 130, the narrow mouth of the narrow-mouth groove 4111 limits the round mouth ring 131, so that the third clamp jaw 411 and the fourth clamp jaw 412 clamp the tension spring 130.

[0107] Please refer to Figure 12 , the fixed end of the tensioning driving member 42 is provided on the driving end of the linear movement module 43, and the linear movement module 43 can drive the tensioning clamp jaw 41 to move linearly to approach or move away from the moving contact positioning mechanism 1. After the tensioning clamp jaw 41 clamps the tension spring 130, the linear movement module 43 drives the tensioning clamp jaw 41 to move towards the moving contact positioning mechanism 1, so as to hang the tension spring 130 in the stretched state on the armature hook 1201 and the contact hook 1101. The linear movement module 43 is a commonly used linear driving device in the prior art, and its specific structure and working principle will not be described in detail here.

[0108] Specifically, as shown in Figure 12 , the tension spring mounting mechanism 4 further comprises a first support plate 44 and a first mounting plate 45. The first support plate 44 is provided on the driving end of the linear movement module 43, and the first mounting plate 45 is provided on the upper side of the first support plate 44. The tensioning driving member 42 is arranged on the first mounting plate 45, so as to realize the mounting of the tensioning driving member 42.

[0109] Optionally, as shown in ​ , the tensioning clamp jaw 41 and the tensioning driving member 42 are provided in multiple groups, and the multiple groups of tensioning clamp jaw 41 and tensioning driving member 42 are arranged side by side on the first mounting plate 45 to realize the simultaneous mounting of multiple tension springs 130.

[0110] The embodiment also provides a circuit breaker pull spring installation method for installing the pull spring 130 based on the circuit breaker pull spring installation device as described above. The circuit breaker pull spring installation method comprises the following steps:

[0111] S1: conveying the moving contact 100 to the moving contact positioning mechanism 1, and the moving contact positioning mechanism 1 respectively positions the contact assembly 110 and the armature 120 of the moving contact 100, so that the contact assembly 110 and the armature 120 are both in a fully positioned state;

[0112] S2: placing the pull spring 130 on the vibration disc assembly 21, and the vibration disc assembly 21 vibrates and conveys the pull spring 130;

[0113] S3: the pull spring transfer mechanism 3 receives the pull spring 130 from the vibration disc assembly 21, adjusts the placement posture of the pull spring 130, so that the placement posture of the pull spring 130 is suitable for being obtained by the pull spring installation mechanism 4, and the pull spring transfer mechanism 3 conveys the pull spring 130 to the pull spring installation mechanism 4;

[0114] S4: the pull spring installation mechanism 4 receives the pull spring 130 conveyed by the pull spring transfer mechanism 3, stretches the pull spring 130, and hangs the stretched pull spring 130 on the contact assembly 110 and the armature 120 at the moving contact positioning mechanism 1.

[0115] Specifically, in step S1, the moving contact 100 is loaded on the moving contact carrier 200, the moving contact carrier 200 is moved to the moving contact positioning mechanism 1 through the annular conveying line body, the positioning fork driving piece 112 extends out, the three armatures 120 are clamped and limited by the positioning fork 111, and the contact assembly 110 is clamped by the clamping action of the positioning driving piece 122, so that the armatures 120 and the contact assembly 110 are in a fully positioned state.

[0116] In step S2, the pull spring 130 reaches the distribution chute 2211 through the three material channels 2111 under the vibration, the distribution driving piece 223 extends upward to push out the distribution block 221 to distribute, and the guard plate driving piece 224 is in a retracted state at this time.

[0117] In step S3, the pull spring 130 in the distribution chute 2211 is in contact with the semicircular corner port 311 of the suction block 31, the two guard plate driving pieces 224 push out the guard plate 222, the distribution driving piece 223 drives the attached accessory to reset, and at this time the pull spring 130 has been sucked by the suction block 31;

[0118] The rack driving piece 325 drives the rack 324 to act, so that the three gears 323 drive the suction block 31 to rotate, and the pull spring 130 is rotated by 90 degrees;

[0119] The guard driving member 224 resets, and the guard 222 resumes shielding the distribution groove 2211. The linear vibration drives the extension spring 130 to the position and waits;

[0120] The turnover driving member 333 drives the turnover shaft 332 to rotate 90 degrees, drives the accessories installed on the turnover shaft 332 to rotate, and makes the extension spring 130 in a vertical posture;

[0121] The sliding driving member 343 extends to drive the sliding plate 342 to slide forward, and all the accessories installed on the sliding plate 342 move with it. The extension spring 130 reaches the left side of the stretching jaw 41 of the extension spring mounting mechanism 4.

[0122] In step S4, the linear movement module 43 drives the accessories installed thereon to move leftward, and the stretching jaw 41 advances to the extension spring 130 taking position. The stretching driving member 42 acts to make the third jaw 411 and the fourth jaw 412 open to clamp the circles at both ends of the extension spring 130, so that the extension spring 130 is in a stretched and taut state, thereby not falling off;

[0123] The linear movement module 43 drives the accessories installed thereon to move rightward and retreat to the set point position;

[0124] The sliding driving member 343 retreats to the original position to move all the accessories installed on the sliding plate 342 backward to the original position;

[0125] The linear movement module 43 drives the accessories installed thereon to move leftward to the extension spring 130 mounting position. The stretching driving member 42 installs the three extension springs 130 on the three armature hooks 1201 and the contact hooks 1101 respectively through flexible action. The linear movement module 43 retreats to the original position, and the extension spring 130 installation is completed;

[0126] While the extension spring mounting mechanism 4 installs the extension spring 130, the turnover driving member 333 drives the accessories installed on the turnover shaft 332 to rotate to the original position. The rack driving member 325 drives the rack 324 to rotate the suction block 31 to the original position. At the same time, the positioning driving member 122 releases the positioning jaw 121, and the positioning fork driving member 112 retreats to the original position;

[0127] After the extension spring 130 is installed, the movable contact carrier 200 moves out, and the installation of the extension spring 130 of one circuit breaker 10 is completed.

[0128] The above steps are repeated to continue the installation of the extension spring 130 of the next circuit breaker 10.

[0129] Obviously, the above embodiments of the present application are merely exemplary but not intended to limit the embodiments of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. It is not necessary or possible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A circuit breaker pull spring mounting device for mounting a pull spring (130) of a moving contact (100) of a circuit breaker (10), characterized by, The utility model relates to a kind of movable contactor, including: Movable contact positioning mechanism (1) is configured to position the contact assembly (110) and armature (120) of the movable contact (100) respectively; Feeding mechanism (2) includes vibration disc assembly (21), and the vibration disc assembly (21) can carry and transport the tension spring (130); Tension spring transfer mechanism (3) is used to receive the tension spring (130) transported by the feeding mechanism (2), and the tension spring transfer mechanism (3) can adjust the placement posture of the tension spring (130) and transport the tension spring (130); Tension spring installation mechanism (4) is used to receive the tension spring (130) transported by the tension spring transfer mechanism (3), and the tension spring installation mechanism (4) can stretch the tension spring (130) and hang the tension spring (130) after stretching on the contact assembly (110) and the armature (120); The movable contact (100) is limited on movable contact carrier (200), and the movable contact positioning mechanism (1) includes: Armature positioning assembly (11) is used to position the armature (120), and the armature positioning assembly (11) includes positioning fork (111) and positioning fork driving part (112), the positioning fork (111) is connected to the driving end of the positioning fork driving part (112), and the positioning fork driving part (112) can drive the positioning fork (111) to move to clamp the armature (120); Contact positioning assembly (12) is used to position the contact assembly (110), and the contact positioning assembly (12) includes positioning clamp jaw (121) and positioning driving part (122), the positioning clamp jaw (121) is connected to the driving end of the positioning driving part (122), and the fixed end of the positioning driving part (122) is connected to the driving end of the positioning fork driving part (112), the positioning fork driving part (112) can drive the positioning clamp jaw (121) to be close to or away from the contact assembly (110), and the positioning driving part (122) can drive the positioning clamp jaw (121) to clamp the contact assembly (110).

2. The circuit breaker pull spring mounting device of claim 1, wherein, The positioning fork (111) is provided with a plurality of, each positioning fork (111) corresponds to position one armature (120), and the armature positioning assembly (11) further includes positioning block (113), the positioning block (113) is arranged on the fixed end of the positioning driving part (122), and a plurality of positioning forks (111) are arranged on the positioning block (113) with interval.

3. The circuit breaker pull spring mounting device of claim 2, wherein, The positioning clamping jaw (121) is provided with a plurality of positioning clamping jaws (121), each of which corresponds to a contact assembly (110). The positioning clamping jaw (121) comprises a first clamping jaw (1211) and a second clamping jaw (1212). The first clamping jaw (1211) and the second clamping jaw (1212) cooperate to clamp the contact assembly (110). The contact positioning assembly (12) further comprises a first connecting plate (123) and a second connecting plate (124) connected to the driving end of the positioning driving member (122). A plurality of first clamping jaws (1211) are arranged on the first connecting plate (123) in a spaced manner. A plurality of second clamping jaws (1212) are arranged on the second connecting plate (124) in a spaced manner. The positioning driving member (122) can drive the first connecting plate (123) and the second connecting plate (124) to move relative to each other, so that the first clamping jaw (1211) and the second clamping jaw (1212) cooperate to clamp or release the contact assembly (110) one by one.

4. The circuit breaker pull spring mounting device of claim 1, wherein, The vibration disc assembly (21) comprises: a vibration disc (211) provided with a plurality of material channels (2111) along the length direction thereof, and the tension spring (130) is placed in the material channel (2111); a straight vibration piece (212) connected to the lower side of the vibration disc (211), which can drive the vibration disc (211) to vibrate, so that the tension spring (130) moves along the material channel (2111) to the outlet end of the material channel (2111).

5. The circuit breaker pull spring mounting device of claim 4, wherein, The feeding mechanism (2) further comprises a material distribution assembly (22) configured to separate one tension spring (130) at the outlet end of the material channel (2111), and the tension spring transfer mechanism (3) takes away the separated tension spring (130).

6. The circuit breaker pull spring mounting device of claim 5, wherein, The material distribution assembly (22) comprises: a material distribution block (221) provided with a plurality of material distribution grooves (2211), and a guard plate (222) capable of covering the upper opening of the material distribution groove (2211), each material distribution groove (2211) being connected to one material channel (2111), the tension spring (130) in the material channel (2111) being capable of moving into the material distribution groove (2211), the guard plate (222) being provided with a relief hole (2221) through which the middle part of the tension spring (130) is exposed; a material distribution driving member (223) arranged on the lower side of the material distribution block (221), the material distribution block (221) being connected to the driving end of the material distribution driving member (223), and the material distribution driving member (223) being capable of driving the material distribution block (221) to move up and down, so that the material distribution groove (2211) can be higher than the material channel (2111). A guard driving member (224) is arranged on the distribution block (221), and a driving end of the guard driving member (224) is connected with the guard (222), so that the guard driving member (224) can drive the guard (222) to move away from the distribution groove (2211) relative to the distribution block (221).

7. The circuit breaker pull spring mounting device of any one of claims 1-6, wherein, The pull spring transferring mechanism (3) comprises a plurality of suction blocks (31) and a rotating assembly (32), the suction blocks (31) can adsorb the pull spring (130) conveyed by the feeding mechanism (2), the rotating assembly (32) can drive the suction blocks (31) to rotate, and the rotating assembly (32) comprises: a rotating fixing frame (321); a plurality of rotating shafts (322) and a plurality of gears (323), the rotating shafts (322) pass through the rotating fixing frame (321), the gears (323) are correspondingly arranged on the upper ends of the rotating shafts (322), and the suction blocks (31) are connected to the lower ends of the rotating shafts (322); a rack (324), the rack (324) is engaged with the plurality of gears (323) at the same time, and movement of the rack (324) relative to the rotating fixing frame (321) can drive the gears (323) to rotate; a rack driving member (325), a fixed end of the rack driving member (325) is arranged on the rotating fixing frame (321), and a driving end of the rack driving member (325) is connected with the rack (324), so that the rack driving member (325) can drive the rack (324) to move.

8. The circuit breaker pull spring mounting device of claim 7, wherein, The pull spring transferring mechanism (3) further comprises a turnover assembly (33), the turnover assembly (33) can drive the rotating assembly (32) to turn over, and the turnover assembly (33) comprises: a turnover fixing frame (331); a turnover shaft (332), which is rotatably arranged on the turnover fixing frame (331), extends along the arrangement direction of the plurality of suction blocks (31), and is connected to the rotating fixing frame (321) at one end; a turnover driving member (333), the other end of the turnover shaft (332) is connected to a driving end of the turnover driving member (333), and the turnover driving member (333) can drive the turnover shaft (332) to rotate.

9. The circuit breaker pull spring mounting device of claim 8, wherein, The pull spring transferring mechanism (3) further comprises a transferring assembly (34), the transferring assembly (34) is used for conveying the pull spring (130) adsorbed by the suction blocks (31) to the pull spring mounting mechanism (4), and the transferring assembly (34) comprises: a transferring fixing frame (341); a sliding plate (342), which is slidably arranged on the transferring fixing frame (341), can slide between the feeding mechanism (2) and the pull spring mounting mechanism (4), and the turnover fixing frame (331) and the turnover driving member (333) are arranged on the sliding plate (342). A sliding driving member (343) is connected to the sliding plate (342) and can drive the sliding plate (342) to slide along the transfer fixing frame (341).

10. The circuit breaker pull spring mounting device of any one of claims 1-6, wherein, The pull spring mounting mechanism (4) comprises: A stretching clamp jaw (41) comprising a third clamp jaw (411) and a fourth clamp jaw (412), which can clamp the two ends of the pull spring (130) respectively; A stretching driving member (42) connected to the driving end of the third clamp jaw (411) and the fourth clamp jaw (412), which can drive the third clamp jaw (411) and the fourth clamp jaw (412) to move close to or away from each other; A linear movement module (43) in which the fixed end of the stretching driving member (42) is arranged at the driving end of the linear movement module (43), which can drive the stretching clamp jaw (41) to move linearly to approach or move away from the movable contact positioning mechanism (1).

11. A circuit breaker spring mounting method characterized by, The pull spring mounting device based on any one of claims 1-10, comprising: The movable contact (100) is transported to the movable contact positioning mechanism (1), which positions the contact assembly (110) and the armature (120) of the movable contact (100) respectively, so that the contact assembly (110) and the armature (120) are both in a fully positioned state; The pull spring (130) is placed on the vibration disc assembly (21), which vibrates and transports the pull spring (130); The pull spring transfer mechanism (3) receives the pull spring (130) from the vibration disc assembly (21) and adjusts the placement posture of the pull spring (130) so that the placement posture of the pull spring (130) is suitable for the pull spring mounting mechanism (4) to obtain, and the pull spring transfer mechanism (3) transports the pull spring (130) to the pull spring mounting mechanism (4); The pull spring mounting mechanism (4) receives the pull spring (130) transported by the pull spring transfer mechanism (3), stretches the pull spring (130), and hangs the stretched pull spring (130) on the contact assembly (110) and the armature (120) of the movable contact positioning mechanism (1).

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