CN113539752A - Circuit breaker locking device's equipment - Google Patents

Abstract

The invention belongs to the technical field of circuit breaker assembling machines, in particular to an assembling device of a circuit breaker locking device, which is provided with a first gripper for grabbing a trigger machine head and a second gripper for grabbing a wiring contact and a thermal assembly, wherein the first gripper and the second gripper are used for transferring the locking device to the upper side of a lower shell when the locking device is assembled, and the trigger machine head has a complex structure, the space of the first installation position in the corresponding lower shell is limited, and the thermal assembly has certain elasticity, once the thermal assembly and the wiring contact are installed firstly, the trigger head cannot be installed, therefore, when in installation, the first gripper and the second gripper are controlled to descend in sequence to realize that the trigger head is installed first and then the wiring contact and the thermal assembly are installed, therefore, the locking device is assembled automatically, the assembly efficiency and quality are improved, and the qualification rate of products is ensured.

Description

Circuit breaker locking device's equipment

Technical Field

The invention belongs to the technical field of circuit breaker assembling machines, and particularly relates to assembling equipment of a circuit breaker locking device.

Background

The circuit breaker is a switching device which can close, bear and break the current under the condition of normal loop and can close, bear and break the current under the condition of abnormal loop in the specified time, the circuit breaker generally includes a lower shell 01, a locking device 02, a first spring 03, a second spring 04, an arc-extinguishing 05 and an electromagnetic trip 06 as shown in figure 1, because the above-mentioned components need to be installed in the specific posture during the assembly, it is difficult to assemble at present by using automatic equipment, wherein, because the locking device has a complex structure, it includes a trigger head, a wiring contact and a thermal assembly which are connected together, the installation has a certain sequence, otherwise, the locking device interferes with the installation position in the lower shell and can not be installed, therefore, the existing locking device is generally assembled manually, the assembly mode not only consumes manpower but also has low efficiency, the defects of unstable assembly quality and high cost exist, and the production requirements of enterprises cannot be met.

Disclosure of Invention

The invention aims to overcome the defect that the locking device of the circuit breaker is assembled manually in the prior art, and provides assembling equipment for automatically assembling the locking device.

In order to solve the technical problems, the invention adopts the following technical scheme:

an assembling device of a circuit breaker locking device comprises a trigger head, a thermal assembly connected with the trigger head, and a wiring contact connected with the thermal assembly, the assembling device comprises a material platform used for storing the locking device, a material channel used for conveying a lower shell of the circuit breaker, and a transfer device used for assembling the locking device in the lower shell, the transfer device comprises a first lifting gripper and a second lifting gripper, the lower shell is internally provided with a first mounting position, a second mounting position and a third mounting position which respectively correspond to the trigger head, the wiring contact and the thermal assembly, when the locking device is assembled, the first gripper grips the trigger head, the second gripper grips the wiring contact and the thermal assembly, to transfer the locking device to the top of the lower housing, then the first gripper is lowered to assemble the trigger head to the first mounting location, and then the second gripper is lowered to assemble the wire connecting contact and the thermal assembly to the second mounting location and the third mounting location, respectively.

Compared with the prior art, the locking device assembling equipment provided by the invention is provided with the first gripper for grabbing the trigger machine head and the second gripper for grabbing the wiring contact and the thermal assembly, the locking device is transferred to the upper side of the lower shell by using the first gripper and the second gripper during assembling the locking device, the trigger machine head has a limited space corresponding to the first installation position in the lower shell due to the complex structure of the trigger machine head, and the thermal assembly has certain elasticity.

Further, first tongs include first lift cylinder, connect in the first jack catch of first lift cylinder output, and first jack catch can be controlled open or receive to get in order to press from both sides and trigger the aircraft nose, and first lift cylinder drives first jack catch and realizes going up and down.

Further, the first clamping jaw comprises a first clamping arm and a second clamping arm which are clamped on the outer side surface of the trigger head, the first clamping jaw further comprises a limiting component, the limiting component comprises a limiting column which is arranged between the first clamping arm and the second clamping arm and is used for downwards abutting against the upper end surface of the trigger head, the lower end of the limiting column is provided with a limiting hole matched with a pin shaft on the upper end surface of the trigger head, as the locking device is not fixed on the material table, when the transfer device grabs the locking device, the locking device easily slides to cause the position to deviate, so that the transfer device cannot accurately grab the locking device, therefore, the limiting column is arranged between the first clamping arm and the second clamping arm, before the first clamping jaw clamps the trigger head, the limiting column is firstly abutted against the upper end surface of the trigger head to firmly press the trigger head on the material table, and the trigger head is prevented from deviating when the subsequent first clamping jaw triggers the trigger head to clamp, thereby improving the precision of grabbing.

Further, in order to further improve the spacing effect of spacing post to triggering the aircraft nose, spacing post is equipped with two, and two spacing posts support and press the diagonal position at the aircraft nose up end that triggers.

Furthermore, the limiting assembly further comprises a limiting blocking arm arranged on one side of the first gripper close to the second gripper, the limiting blocking arm has a preset swing amplitude in the direction from the first gripper to the second gripper, the limiting blocking arm is used for blocking the outer side face of the trigger head close to one side of the second gripper when the trigger head is clamped by the first gripper, the rotating freedom degree of the trigger head on the placing face parallel to the material platform can be further limited by the limiting blocking arm, the trigger head is prevented from rotating when being clamped, in addition, the limiting blocking arm can be adjusted in an adaptive mode when the trigger head is clamped by a setting mode with the preset swing amplitude, and the trigger head is prevented from being damaged due to direct collision with the trigger head.

Further, the bottom that spacing fender arm is located the one side that is close to the trigger aircraft nose is equipped with the guide surface to the downside slope, the adaptability adjustment ability of spacing fender arm can further be improved to the guide surface, when transfer device descends and prepares to snatch the trigger aircraft nose, spacing fender arm can be along with descending at first with the contact takes place to the outward flange position of trigger aircraft nose, through setting up the guide surface, when making the guide surface contact with the trigger aircraft nose, can order about spacing fender arm adaptability ground along the outward flange outside swing of trigger aircraft nose, thereby the fine setting of effect adaptation, avoid directly taking place to interfere and influence subsequent clamp and get the operation and avoid crushing the trigger aircraft nose with the trigger aircraft nose.

Furthermore, the limiting component also comprises a bracket, the bracket comprises a vertical arm and a transverse arm, the upper end of the vertical arm is relatively and fixedly connected with the output end of the first lifting cylinder, the transverse arm is fixedly connected with the lower end of the vertical arm, a positioning column is arranged at the head end of the transverse arm, the joint of the tail end of the transverse arm and the vertical arm is sunken inwards to form a mounting concave position, the limiting blocking arm comprises a connecting part and a blocking part extending downwards, the connecting part is mounted in the mounting concave position, a gap is respectively reserved between the side wall of the connecting part and the transverse arm and the vertical arm, the connecting part is provided with a plurality of connecting holes which are transversely arranged at intervals corresponding to the mounting concave position and corresponding to the waist-shaped holes, a screw connected with one of the connecting holes penetrates through the waist-shaped holes, the mounting mode of the limiting blocking arm can form an integral structure with the bracket as much as possible, the mounting space of the limiting blocking arm is better saved, meanwhile, the connecting part is arranged in the mounting concave position, and the connecting part can be limited by the transverse arm and the vertical arm, the swing amplitude of the locking device is limited, and the waist-shaped hole and the connecting holes are arranged so that an operator can select the proper connecting hole according to the size of the actual trigger machine head, and the specification of the transfer device which can be used for transferring the locking device is increased.

Furthermore, the second gripper comprises a second lifting cylinder, a second claw and a third claw which are connected to the output end of the second lifting cylinder, the second claw and the third claw can be opened or closed in an operation mode so as to clamp the wiring contact and the thermal assembly, and the second lifting cylinder drives the second claw and the third claw to lift.

Further, the second tongs is still including connecting in the third lift cylinder of second lift cylinder output, and connect in the briquetting of third lift cylinder output, the briquetting can be controlled the underground reduction and press the thermal component, because assembly locking device is the installation earlier and triggers the aircraft nose, the thermal component is installed afterwards, in addition third installation position closely cooperates with the thermal component, only be difficult to pack the thermal component into the third installation position completely through the third jack catch, consequently through setting up the briquetting of liftable, so that accomplish to place the thermal component at the third jack catch and support the pressure to the thermal component after, thereby make the thermal component further pack into in the third installation position, ensure that its installation is firm.

Drawings

Fig. 1 is a schematic structural view of a circuit breaker;

FIG. 2 is a schematic structural view of an assembly apparatus;

FIG. 3 is a schematic structural view of the first and second grippers gripping the locking device and placing it into the lower shell;

FIG. 4 is a top view of the first clamping arm, the second clamping arm, the limiting assembly and the trigger head;

FIG. 5 is a diagram showing the engagement of the position-limiting assembly with the trigger head;

FIG. 6 is a schematic structural view of a position-limiting assembly and a trigger head;

FIG. 7 is a schematic structural view of a limit stop arm;

FIG. 8 is a schematic structural view of the first and second grippers grasping the locking device and placing it into the lower shell;

fig. 9 is a schematic structural diagram of the first gripper and the second gripper gripping the locking device and placing the locking device into the lower shell.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "head end", "tail end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the parts of the circuit breaker according to the present invention include an upper housing 01, a lower housing 02, a locking device 03, a first spring 04, a second spring 05, an arc extinguisher 06, and an electromagnetic trip 07, the lower housing 02 is respectively provided with a part mounting location corresponding to the parts, the locking device 03, the first spring 04, the second spring 05, the electromagnetic trip 07, and the arc extinguisher 06 are sequentially mounted in the mounting location corresponding to the lower housing 02 when the circuit breaker is assembled, and finally the upper housing 01 is covered on the lower housing 02, in this embodiment, an assembling apparatus for automatically mounting the locking device 02 on the lower housing 02 is provided, the locking device 03 includes a trigger head 031, a wiring contact, and a thermal assembly 033, the trigger head 031 is connected to the thermal assembly 033, the thermal assembly 033 is connected to the wiring contact 032, wherein the trigger head 032 has a smooth outer side surface, and the thermal assembly 033 is an elastic copper sheet, a first installation position 021, a second installation position 022 and a third installation position 023 which respectively correspond to the trigger head 031, the wiring contact 032 and the thermal component 033 are arranged in the lower shell.

Referring to fig. 1, 2, 3, 8 and 9, the assembling apparatus includes a material table 100 for storing the locking device 03, a material channel 200 for conveying the lower shell 02, and a transfer device 300 for assembling the locking device 03 in the lower shell 02, the locking device 03 on the material table 100 is already placed according to a preset posture, the transfer device 300 includes a first lifting gripper 1 and a second lifting gripper 2, a plurality of jigs 400 are arranged on the material channel 200, the lower shell 02 is preset on each jig 400, the material channel 200 conveys the jigs 400 to the transfer device 300 in sequence during assembly, so that the lower shell 02 is conveyed to the side of the transfer device 300, and the transfer device 300 assembles the locking device 03 in the lower shell 02. During the assembly locking device 03, first tongs 1 presss from both sides and gets trigger aircraft nose 031, and second tongs 2 press from both sides and get wiring contact 032 and hot component 033 to shift locking device 03 to the top of inferior valve 02, then first tongs 1 descends and assembles trigger aircraft nose 031 to first installation position 021, and then second tongs 2 descends and assembles second installation position 022 and third installation position 023 respectively with wiring contact 032 and hot component 033.

Referring to fig. 3, the first gripper 1 includes a first lifting cylinder 11, a first jaw 12 connected to an output end of the first lifting cylinder 11, and a limiting assembly 13, the first jaw 12 can be opened or closed by being controlled to clamp an outer side surface of the trigger head 031, the first lifting cylinder 11 drives the first jaw 12 to realize lifting, and in a specific embodiment, the first jaw 12 can be opened and closed by being driven by a cylinder.

Referring to fig. 3 to 6, the first jaw 12 includes a first clamping arm 121 and a second clamping arm 122 clamped on an outer side surface of a trigger handpiece 031, and the limiting assembly 13 includes a limiting post 131 disposed between the first clamping arm 121 and the second clamping arm 122 and configured to press an upper end surface of the trigger handpiece 031 downward, where it should be noted that, a protruding pin 034 is disposed on the upper end surface of the trigger handpiece 031 according to the present invention, and a limiting hole 1311 matched with the pin 034 is disposed at a lower end of the limiting post 131, and since the locking device 03 is not fixed on the material table 100, that is, the locking device 03 can move relative to the material table 100, if only the first jaw 12 is disposed, when the locking device 03 is grasped, the locking device 03 is easily slid and shifted, so that the transfer device 300 cannot accurately grasp the locking device 03, and therefore, by disposing the limiting post 131 between the first clamping arm 121 and the second clamping arm 122, before the first jaw 12 triggers the trigger handpiece 031, let spacing post 131 support earlier and press at the up end that triggers aircraft nose 031 to trigger aircraft nose 031 and compress tightly on material platform 100 firmly, prevent that follow-up first jack catch 12 from pressing from both sides and take place the off normal when getting trigger aircraft nose 031, thereby improve the precision of snatching.

Referring to fig. 3 to 6, as an improved scheme, in order to further improve the limiting effect of the two limiting columns 131 on the trigger head 031, two limiting columns 131 are provided, and the two limiting columns 131 are distributed diagonally, that is, the two limiting columns 131 abut against the diagonal positions of the upper end surface of the trigger head 031, and the setting manner can more effectively limit the rotational freedom degree of the trigger head 031 parallel to the placing surface of the material table 100.

Referring to fig. 3 to 6, as an improved solution, the position limiting assembly 13 further includes a position limiting arm 132 disposed on one side of the first gripper 1 close to the second gripper 2, the position limiting arm 132 has a preset swing range in a direction from the first gripper 1 to the second gripper 2, the position limiting arm 132 is configured to abut against an outer side surface of a trigger head 031 close to one side of the second gripper 2 when the first gripper 1 grips the trigger head 031, specifically, the trigger head 031 has a stop 0311 corresponding to the position limiting arm 132, the position limiting arm 132 abuts against the stop 0311, by disposing the position limiting arm 132, the degree of freedom of rotation of the trigger head 031 on a plane parallel to the material table 100 can be further limited, the trigger head 031 can be prevented from rotating when gripped, and meanwhile, the position limiting arm 132 has a preset swing range that can be adaptively fine-adjusted when the first gripper 1 triggers the trigger head 031, so as not to damage the trigger head 031 by direct collision with the trigger head 031.

Referring to fig. 3 to 7, as an improved scheme, a guide surface 1321 inclined to the lower side is provided at a side of the bottom end of the limit stop arm 132 close to the trigger head 031, the guide surface 1321 can further improve the adaptability adjustment capability of the limit stop arm 132, when the transfer device 300 descends to grasp the trigger head 031, the limit stop arm 132 first contacts with an outer edge position of the trigger head 031 along with descending, and by providing the guide surface 1321, when the guide surface 1321 contacts with the trigger head 031, the limit stop arm 132 is driven to adaptively swing outwards along the outer edge of the trigger head 031, so that adaptive fine adjustment is performed, and the influence on subsequent clamping operation due to direct interference with the trigger head 031 is avoided and the trigger head 031 is prevented from being crushed.

Referring to fig. 3 to 7, in a specific embodiment, the position-limiting assembly 13 further includes a bracket 130 having an L-shape, the bracket 130 includes a vertical arm 133 and a horizontal arm 134, an upper end of the vertical arm 133 is fixedly connected to an output end of the first lifting cylinder 11, for example, fixedly disposed on a cylinder for opening and closing the first jaw 12, so that the bracket 130 is lifted and lowered synchronously with the first jaw 12, the horizontal arm 134 is fixedly connected to a lower end of the vertical arm 133, a positioning column is disposed at a head end of the horizontal arm 134, a connection portion between a tail end of the horizontal arm 134 and the vertical arm 133 is inwardly recessed to form a mounting recess 135, the tail end is an end of the horizontal arm 134 close to the second jaw 2, the horizontal arm 134 is located at a head end opposite to the tail end, the position-limiting blocking arm 132 includes a connecting portion 136 and a blocking portion 137 extending downward, the connecting portion 136 is mounted in the mounting recess 135, and a side wall thereof is spaced apart from the horizontal arm 134 and the vertical arm 133, the connecting portion 136 is provided with a kidney-shaped hole 139, the mounting concave portion 135 is provided with a plurality of connecting holes 138 arranged transversely at intervals corresponding to the kidney-shaped hole 139, a screw (not shown in the figure) connected with one of the connecting holes 138 penetrates through the kidney-shaped hole 139, the limit stop arm 132 can be movably assembled on the mounting concave 135 by the screw, the limit stop arm 132 can be mounted in an integral structure with the bracket 130 as much as possible, the mounting space is saved better, meanwhile, the connecting part 136 is arranged in the mounting concave position 135, the connecting part 136 can be limited by the cross arm 134 and the vertical arm 133 so as to limit the swinging amplitude of the connecting part 136, a limiting structure is not required to be additionally arranged, moreover, the waist-shaped hole 139 and the plurality of connecting holes 138 are provided for an operator to select a proper connecting hole 138 according to the size of the actual trigger handpiece 031, so that the specification of the transfer device 300 which can be used for transferring the locking device 03 is increased.

Referring to fig. 1, 3, 8 and 9, the second gripper 2 includes a second lifting cylinder 21, a second jaw 22 and a third jaw 23 connected to an output end of the second lifting cylinder 21, the second jaw 22 and the third jaw 23 can be opened and closed in an operable manner to grip the wiring contact 032 and the thermal component 033, the second lifting cylinder 21 drives the second jaw 22 and the third jaw 23 to lift, and in a specific embodiment, the second jaw 22 and the third jaw 23 can be opened and closed by a cylinder.

Referring to fig. 1, 8 and 9, the second gripper 2 further includes a third lift cylinder 24 connected to the output end of the second lift cylinder 21, and a press block 25 connected to the output end of the third lift cylinder 24, the press block 25 can be controlled to press down the thermal component 033, since the assembling locking device 03 is to install the trigger head 031 first and then install the thermal component 033, and the third installation position 023 is tightly matched with the thermal component 033, it is difficult to completely install the thermal component 033 in the third installation position 023 only by the third claw 23, so that the liftable press block 25 is provided to press the thermal component 033 after the third claw 23 finishes placing the thermal component 033, thereby further installing the thermal component 033 in the third installation position 023, and ensuring that the installation is firm.

The working principle of the invention is as follows: the material channel 200 conveys the lower casing 02 to the side of the transfer device 300, the transfer device 300 clamps a trigger head 031, a wiring contact 032 and a thermal component 033 of the locking device 03 through a first gripper 1 and a second gripper 2, in the clamping process, as the first gripper 1 descends, the limiting column 131 firstly abuts against the upper end face of the trigger head 031, the limiting blocking arm 132 abuts against the outer side face of the trigger head 031 on the side close to the second gripper 2, so that the locking device 03 is pressed on the material platform 100, so that the locking device 03 does not deviate when the first gripper 1 and the second gripper 2 clamp, after clamping is completed, the transfer device 300 transfers the locking device 03 to the upper side of the lower casing 02, then the first gripper 1 descends to place the trigger head 031 into a first mounting position 021, then the second gripper 2 descends to place the wiring contact 032 and the thermal component 033 into a corresponding mounting position, and finally, a third lifting cylinder 24 descends to drive a press block 25 to further press the thermal component 023 into a third mounting position, thereby completing the assembly of the locking device 03.

Compared with the prior art, the locking device 03 assembling equipment provided by the invention is provided with the first gripper 1 for gripping the trigger head 031 and the second gripper 2 for gripping the wiring contact 032 and the thermal component 033, when the locking device 03 is assembled, the locking device 03 is transferred to the upper side of the lower shell 02 by using the first gripper 1 and the second gripper 2, because the trigger head 031 has a complex structure, which has limited space corresponding to the first mounting location 021 in the lower housing 02, and the thermal component 033 has a certain elasticity, so that the trigger head 031 cannot be installed once the thermal component 033 and the wiring contact 032 are first mounted, therefore, when the trigger head 031 is installed first, then the wiring contact 032 and the thermal component 033 are installed by controlling the descending sequence of the first gripper 1 and the second gripper 2, therefore, the locking device 03 can be automatically assembled, the assembly efficiency and quality are improved, and the product qualification rate is guaranteed.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (9)

1. An assembling device of a circuit breaker locking device comprises a trigger machine head, a thermal assembly connected with the trigger machine head, and a wiring contact connected with the thermal assembly, and is characterized in that the assembling device comprises a material platform used for storing the locking device, a material channel used for conveying a lower shell of a circuit breaker, and a transfer device used for assembling the locking device in the lower shell, wherein the transfer device comprises a first lifting gripper and a second lifting gripper, a first mounting position, a second mounting position and a third mounting position which respectively correspond to the trigger machine head, the wiring contact and the thermal assembly are arranged in the lower shell, when the locking device is assembled, the first gripper grips the trigger machine head, the second gripper grips the wiring contact and the thermal assembly to transfer the locking device to the upper part of the lower shell, and then the first gripper descends to assemble the trigger machine head to the first mounting position, the second hand grip is then lowered to assemble the wire contact and the thermal assembly to the second mounting location and the third mounting location, respectively.

2. The assembly apparatus of claim 1, wherein: the first gripper comprises a first lifting cylinder and a first clamping jaw connected to the output end of the first lifting cylinder, the first clamping jaw can be opened or closed in an operation and control mode to clamp the trigger machine head, and the first lifting cylinder drives the first clamping jaw to lift.

3. The assembly equipment according to claim 2, wherein the first jaw comprises a first clamping arm and a second clamping arm which are clamped on the outer side surface of the trigger head, the first gripper further comprises a limiting component, the limiting component comprises a limiting column which is arranged between the first clamping arm and the second clamping arm and used for downwards abutting against the upper end surface of the trigger head, and a limiting hole matched with a pin shaft on the upper end surface of the trigger head is formed in the lower end of the limiting column.

4. The assembly equipment according to claim 3, wherein two limiting columns are arranged, and the two limiting columns are pressed against the diagonal positions of the upper end face of the trigger head.

5. The assembly apparatus according to claim 3, wherein the limiting assembly further comprises a limiting stop arm disposed on a side of the first gripper close to the second gripper, the limiting stop arm having a preset swing range in a direction from the first gripper to the second gripper, the limiting stop arm being configured to abut against an outer side surface of the trigger head on a side close to the second gripper when the trigger head is gripped by the first gripper.

6. The assembly device of claim 5, wherein the bottom end of the limit stop arm is provided with a guide surface inclined to the lower side at a side close to the trigger head.

7. The assembly device of claim 5 or 6, wherein the stop assembly further comprises a bracket, the bracket comprises a vertical arm and a cross arm, the upper end of the vertical arm is relatively and fixedly connected with the output end of the first lifting cylinder, the cross arm is fixedly connected with the lower end of the vertical arm, the positioning column is arranged at the head end of the cross arm, the joint of the tail end of the cross arm and the vertical arm is recessed inwards to form a mounting concave position, the limiting blocking arm comprises a connecting part and a blocking part extending downwards, the connecting part is mounted in the mounting concave position, gaps are respectively reserved between the side walls of the connecting part and the transverse arm and between the side walls of the connecting part and the vertical arm, the connecting part is provided with a waist-shaped hole, the mounting concave position is provided with a plurality of connecting holes which are transversely arranged at intervals corresponding to the waist-shaped holes, and a screw connected with one of the connecting holes penetrates through the waist-shaped hole.

8. The assembly device of claim 1, wherein the second gripper comprises a second lifting cylinder, a second jaw and a third jaw connected to an output end of the second lifting cylinder, the second jaw and the third jaw being operable to open and close to grip the wiring contact and the thermal assembly, and the second lifting cylinder drives the second jaw and the third jaw to lift.

9. The assembly apparatus of claim 8, wherein the second gripper further comprises a third lift cylinder connected to an output of the second lift cylinder, and a press block connected to an output of the third lift cylinder, the press block being operable to be lowered against the thermal assembly.

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