An automated assembly apparatus for circuit breaker contacts

Abstract

The application discloses an automatic assembly device for a circuit breaker contact, comprising a workbench, a positioning assembly, a first driving assembly, a second driving assembly and a third driving assembly, the first driving assembly, the positioning assembly and the second driving assembly are sequentially arranged along a first direction and are all arranged on the workbench; the positioning assembly is used for positioning a moving conductor, the first driving assembly is used for driving a moving contact to move along the first direction and extend into the moving conductor, the second driving assembly is used for driving an insulating pull rod to move along the reverse direction of the first direction and extend into the moving conductor, and the third driving assembly is used for driving a connecting pin shaft to move along a second direction and be inserted into a pin hole of the moving contact and a pin hole of the insulating pull rod; the first direction is the same as the axial direction of the moving conductor positioned on the positioning assembly, and the second direction is perpendicular to the first direction. The application can realize automatic assembly of the circuit breaker contact and improve assembly efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breaker production equipment, and in particular to an automated assembly equipment for circuit breaker contacts. Background Art

[0002] The assembly of circuit breaker contacts is a critical step in the circuit breaker production process. Traditionally, this method relies primarily on manual labor, which presents numerous drawbacks. On the one hand, manual assembly is inefficient and difficult to meet the demands of large-scale production. On the other hand, manual operation is difficult to ensure consistency and accuracy, making assembly errors prone to occur, leading to unstable product quality and potential damage to the moving contacts due to bumps and collisions. With the development of the circuit breaker manufacturing industry, the requirements for assembly efficiency and quality are becoming increasingly stringent, necessitating the development of efficient, precise, and highly automated circuit breaker contact assembly equipment. Summary of the Invention

[0003] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides an automated assembly device for circuit breaker contacts.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: an automated assembly equipment for circuit breaker contacts, used to assemble the moving conductor, moving contact and insulating pull rod in the circuit breaker contact into one through a connecting pin shaft, the automated assembly equipment includes a workbench, a positioning assembly, a first drive assembly, a second drive assembly and a third drive assembly, the first drive assembly, the positioning assembly and the second drive assembly are arranged in sequence along a first direction and all three are arranged on the workbench; the positioning assembly is used to position the moving conductor, the first drive assembly is used to drive the moving contact to move along the first direction and extend into the moving conductor, the second drive assembly is used to drive the insulating pull rod to move in the opposite direction of the first direction and extend into the moving conductor, the third drive assembly is used to drive the connecting pin shaft to move along the second direction and insert into the pin hole of the moving contact and the pin hole of the insulating pull rod; the first direction is the same direction as the axial direction of the moving conductor positioned in the positioning assembly, and the second direction is perpendicular to the first direction.

[0005] The application of this invention has the following beneficial effects: the moving conductor can be fixed by a positioning assembly, and then the first drive assembly and the second drive assembly can be used to respectively drive the moving contact and the insulating pull rod to move, so that the moving contact and the insulating pull rod extend into the moving conductor in a first direction and the opposite direction of the first direction, respectively, and the pin hole on the moving contact and the pin hole on the insulating pull rod are aligned. The third drive assembly can then be used to drive the connecting pin shaft to extend into the moving conductor in a second direction and insert into the pin hole of the moving contact and the pin hole of the insulating pull rod, thereby achieving the purpose of assembling the moving contact and the insulating pull rod through the connecting pin shaft, thereby improving assembly efficiency.

[0006] Optionally, the positioning assembly includes a clamping mechanism and a positioning plate, the positioning plate is provided with a positioning hole for cooperating with a connection hole located at an end of the moving conductor, and the clamping mechanism includes:

[0007] a first clamping seat formed with a first clamping portion;

[0008] a second clamping seat formed with a second clamping portion;

[0009] A first linear actuator is provided on the workbench and is used to drive the first clamping seat to reciprocate along a third direction; and

[0010] a second linear actuator, which is disposed on the workbench and is used to drive the second clamping seat to reciprocate along a third direction;

[0011] The first clamping portion and the second clamping portion cooperate to clamp the moving contact, and the third direction is perpendicular to both the first direction and the second direction.

[0012] Optionally, the first driving component includes:

[0013] A first movable seat is slidably disposed on the workbench along a first direction;

[0014] A first clamping mechanism is provided on the first movable seat so as to be openable and closable along a third direction; and

[0015] a first driving mechanism connected to the first movable base and configured to drive the first movable base to slide back and forth in a first direction;

[0016] Wherein, the first clamping mechanism is used to clamp and position the moving contact, and the third direction is perpendicular to both the first direction and the second direction.

[0017] Optionally, the automated assembly equipment also includes a first calibration component, which includes an opening and closing mechanism and a third linear drive. The opening and closing mechanism includes a first movable block and a second movable block that can open and close relative to each other along a second direction. The first movable block and the second movable block are both provided with a first calibration axis that is adapted to the pin hole of the moving contact. The third linear drive is connected to the opening and closing mechanism and is used to drive the opening and closing mechanism to move back and forth along a third direction.

[0018] Optionally, the first driving component further includes:

[0019] a second driving mechanism, which is disposed on the first movable seat and is used to push the contact along a first direction;

[0020] A third driving mechanism is disposed on the other side of the positioning assembly relative to the second driving mechanism along the first direction; and

[0021] a first guiding rod connected to the third driving mechanism and capable of moving in the opposite direction of the first direction to engage with the moving contact under the drive of the third driving mechanism;

[0022] Wherein, the first guiding rod is provided with a first protrusion for plugging into the end hole structure of the moving contact.

[0023] Optionally, the automated assembly equipment also includes a second movable seat slidably set on the workbench and a fourth drive mechanism connected to the second movable seat, the fourth drive mechanism is used to drive the second movable seat to slide back and forth along a third direction; the third drive mechanism and the second drive assembly are arranged at intervals along the third direction and both are set on the second movable seat.

[0024] Optionally, the second driving component includes:

[0025] A third movable seat is slidably disposed on the workbench along the first direction;

[0026] A second clamping mechanism is provided on the third movable seat so as to be openable and closable along a third direction; and

[0027] a fifth driving mechanism connected to the third movable base and configured to drive the third movable base to slide back and forth in the first direction;

[0028] The second clamping mechanism is used to clamp and position the insulating pull rod, and the third direction is perpendicular to both the first direction and the second direction.

[0029] Optionally, the second clamping mechanism includes:

[0030] a fifth linear actuator, fixedly disposed on the third movable base;

[0031] a first clamping block fixedly connected to one side of the fifth linear actuator and capable of moving along a third direction under the drive of the fifth linear actuator; and

[0032] a second clamping block fixedly connected to the other side of the fifth linear actuator and capable of moving in a reverse direction along the third direction under the drive of the fifth linear actuator;

[0033] Wherein, the first clamping block and the second clamping block cooperate to clamp and position the insulating pull rod;

[0034] The automated assembly equipment further includes a second calibration component, which includes two second calibration shafts. The two second calibration shafts are respectively arranged on the first clamping block and the second clamping block, and the second calibration shafts are adapted to the end hole structure of the insulating pull rod.

[0035] Optionally, the third driving component includes:

[0036] a fourth movable seat, which is slidably disposed on the workbench along a third direction;

[0037] a sixth linear actuator connected to the fourth movable base and configured to drive the fourth movable base to slide back and forth along a third direction; and

[0038] a seventh linear actuator, fixedly disposed on the fourth movable seat and configured to drive the connecting pin to move along the second direction;

[0039] Wherein, a positioning groove for positioning the connecting pin is formed at the output end of the seventh linear actuator.

[0040] Optionally, the third driving component further includes:

[0041] a fifth movable seat, which is slidably disposed on the workbench;

[0042] a sixth driving mechanism connected to the fifth movable base and configured to drive the fifth movable base to slide back and forth in the first direction;

[0043] a sixth movable seat, slidably disposed on the fifth movable seat;

[0044] an eighth linear actuator connected to the sixth movable base and configured to drive the sixth movable base to slide back and forth along a third direction;

[0045] a ninth linear actuator fixedly mounted on the sixth movable seat; and

[0046] a second guiding rod connected to the ninth linear actuator and capable of moving in the opposite direction of the second direction to engage with the connecting pin under the drive of the ninth linear actuator;

[0047] Wherein, the second guiding rod is provided with a second protrusion for plugging into the end hole structure of the connecting pin shaft.

[0048] These features and advantages of this application will be disclosed in detail in the following detailed description and accompanying drawings. The best embodiments or means of this application will be fully illustrated in conjunction with the accompanying drawings, but this does not limit the technical solutions of this application. Furthermore, although there may be multiple features, elements, and components in each of the following text and accompanying drawings, different symbols or numbers may be used for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present application will be further described below with reference to the accompanying drawings:

[0050] Figure 1 A schematic structural diagram of an automated assembly device for circuit breaker contacts provided in an embodiment of the present application during application;

[0051] Figure 2 This is a structural diagram of the automated assembly equipment from another perspective when in use;

[0052] Figure 3 It is a structural diagram of the positioning component;

[0053] Figure 4 It is a structural schematic diagram of the first movable seat and the first clamping mechanism;

[0054] Figure 5 for Figure 1 A magnified schematic diagram of part A;

[0055] Figure 6 for Figure 2 An enlarged schematic diagram of part B;

[0056] Figure 7 It is a schematic structural diagram of the moving conductor to be assembled;

[0057] Figure 8 Schematic diagram of the structure of the second driving assembly, the second moving base and the first calibration assembly;

[0058] Figure 9 Schematic diagram of the structure of the second movable seat, the second drive assembly and the insulating pull rod;

[0059] Figure 10 The exploded view of the second drive assembly and the insulating pull rod;

[0060] Figure 11 is a structural schematic diagram of the third drive assembly;

[0061] Figure 12 This is a structural diagram of the third drive component from another perspective.

[0062] Among them, 1. workbench; 10. first moving seat; 11. second moving seat; 12. third moving seat; 13. fourth moving seat; 14. fifth moving seat; 15. sixth moving seat; 16. fourth driving mechanism; 2. positioning assembly; 20. positioning plate; 200. positioning hole; 21. clamping mechanism; 210. first clamping seat; 211. second clamping seat; 212. first linear actuator; 213. second linear actuator; 214. first electric push rod; 22. positioning seat; 3. first driving assembly; 30. first clamping mechanism; 300. first clamping seat; 301. second clamping seat; 302. first slide cylinder; 303. second electric push rod; 31. first driving mechanism; 32. second driving mechanism; 33. third driving mechanism; 34. first guide rod; 340. first protrusion; 35. first Calibration assembly; 350, third linear drive; 351, first moving block; 352, second moving block; 353, first calibration axis; 4, second drive assembly; 40, second clamping mechanism; 400, fifth linear drive; 401, first clamping block; 402, second clamping block; 41, fifth drive mechanism; 42, second calibration axis; 43, tension spring; 5, third drive assembly; 50, sixth linear drive; 51, seventh linear drive; 52, sixth drive mechanism; 53, eighth linear drive; 54, ninth linear drive; 55, second guide rod; 550, second protrusion; 6, moving conductor; 60, docking hole; 61, assembly hole; 7, moving contact; 70, first connecting pin hole; 71, jack; 8, insulating pull rod; 80, second connecting pin hole; 81, third connecting pin hole; 9, connecting pin shaft. DETAILED DESCRIPTION

[0063] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described in the embodiments are intended to be used to explain the present application and are not to be construed as limiting the present application.

[0064] In the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to this application.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0066] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0067] This embodiment provides an automated assembly device for circuit breaker contacts, such as Figure 1 and Figure 2 As shown, the automated assembly equipment is used to assemble the moving conductor 6, moving contact 7, and insulating pull rod 8 in a circuit breaker contact into a single unit via a connecting pin 9. The automated assembly equipment includes a workbench 1, a positioning assembly 2, a first drive assembly 3, a second drive assembly 4, and a third drive assembly 5. The first drive assembly 3, the positioning assembly 2, and the second drive assembly 4 are arranged sequentially along a first direction and are all disposed on the workbench 1. The positioning assembly 2 is used to position the moving conductor 6, the first drive assembly 3 is used to drive the moving contact 7 to move in the first direction and extend into the moving conductor 6, and the second drive assembly 4 is used to drive the insulating pull rod 8 to move in the opposite direction of the first direction and extend into the moving conductor 6. The moving conductor 6 is secured by the positioning assembly 2, and then the first drive assembly 3 and the second drive assembly 4 respectively drive the moving contact 7 and the insulating pull rod 8, causing them to extend into the moving conductor 6 in the first direction and the opposite direction of the first direction, respectively, and aligning the pin holes in the moving contact 7 and the insulating pull rod 8. The third driving component 5 is used to drive the connecting pin 9 to move along the second direction and insert it into the pin hole of the moving contact 7 and the pin hole of the insulating pull rod 8. In this way, the third driving component 5 can be used to drive the connecting pin 9 to extend into the moving conductor 6 along the second direction and insert it into the pin hole of the moving contact 7 and the pin hole of the insulating pull rod 8, thereby achieving the purpose of assembling the moving contact 7 and the insulating pull rod 8 through the connecting pin 9, thereby improving the assembly efficiency.

[0068] The first direction described in this embodiment is Figure 1 and Figure 2 The direction indicated by the arrow P is the second direction Figure 1 and Figure 2The directions indicated by the arrows S are: a first direction is in the same direction as the axial direction of the moving conductor 6 positioned on the positioning assembly 2 ; and a second direction is perpendicular to the first direction.

[0069] Combine Figure 3 As shown, the positioning assembly 2 in this embodiment includes a clamping mechanism 21 and a positioning plate 20. The positioning plate 20 is provided with a positioning hole 200 for cooperating with the connection hole located at the end of the moving conductor 6, and the clamping mechanism 21 includes a first clamping seat 210, a second clamping seat 211, a first linear drive 212 and a second linear drive 213. The first clamping seat 210 is formed with a first clamping portion, and the second clamping seat 211 is formed with a second clamping portion, and the first clamping portion and the second clamping portion cooperate to clamp the moving contact 7. The first linear drive 212 is provided on the workbench 1 and is used to drive the first clamping seat 210 to reciprocate along the third direction, and the second linear drive 213 is provided on the workbench 1 and is used to drive the second clamping seat 211 to reciprocate along the third direction. The third direction is Figure 1 and Figure 2 The third direction is perpendicular to both the first and second directions. During operation, the manipulator can grab the moving conductor 6 and place it at a predetermined position. The predetermined position can be determined by the control program of the manipulator or by setting a support structure on the workbench 1. Figure 3 As shown, in this embodiment, a positioning seat 22 is also provided on the workbench 1. The upper end surface of the positioning seat 22 provides support for the moving conductor 6, facilitating the robot to determine the placement height of the moving conductor 6. After the moving conductor 6 is placed in place, the first and second linear actuators 212 and 213 respectively drive the movement of the first and second clamping seats 210 and 211, thereby clamping the moving conductor 6 in place. Furthermore, the robot can use a pin to pass through the positioning hole 200 of the positioning plate 20 and extend into the opening in the moving conductor 6, further ensuring the stability of the moving conductor 6.

[0070] It should be noted that the first linear actuator 212 and the second linear actuator 213 in this embodiment are both slide cylinders, and a group of first electric push rods 214 are also provided between the first movable seat 10 and the second movable seat 11, which can pre-set the pressure force of the slide cylinder so that the first movable seat 10 and the second movable seat 11 tend to move closer to each other. When the moving conductor 6 needs to be placed, the first electric push rod 214 is used to apply pressure to the first movable seat 10 and the second movable seat 11 and overcome the force of the first linear actuator 212 and the second linear actuator 213, so that the first movable seat 10 and the second movable seat 11 are relatively separated. After the moving conductor 6 is placed between the first movable seat 10 and the second movable seat 11, the first electric push rod 214 is controlled to retract, and the first movable seat 10 and the second movable seat 11 are driven by the first linear actuator 212 and the second linear actuator 213 to move closer to each other and clamp the moving conductor 6.

[0071] It should also be noted that in other optional embodiments, the aforementioned first electric push rod 214 may not be provided. In this case, the first linear actuator 212 and the second linear actuator 213 may be common actuators such as pneumatic rods or electric push rods. The first linear actuator 212 and the second linear actuator 213 may directly drive the first clamping seat 210 and the second clamping seat 211 to move in the third direction or in the opposite direction, thereby driving the first clamping seat 210 and the second clamping seat 211 to move closer to or farther from each other, thereby achieving clamping and positioning of the moving conductor 6.

[0072] Combine Figure 1 、 Figure 2 and Figure 4As shown, the first drive assembly 3 in this embodiment includes a first movable seat 10, a first clamping mechanism 30 and a first drive mechanism 31. The first movable seat 10 is slidably arranged on the workbench 1 along the first direction, the first clamping mechanism 30 is used to clamp and position the moving contact 7, the first clamping mechanism 30 is openably arranged on the first movable seat 10 along the third direction, and the first drive mechanism 31 is connected to the first movable seat 10 and is used to drive the first movable seat 10 to slide back and forth along the first direction. The first drive mechanism 31 in this embodiment is an electric push rod fixedly arranged on the workbench 1, and its output end is fixedly connected to the first movable seat 10. The structure of the first clamping mechanism 30 in this embodiment is similar to the aforementioned clamping mechanism 21. Specifically, the first clamping mechanism 30 includes a first clamping seat 300, a second clamping seat 301, two groups of first slide cylinders 302 and a group of second electric push rods 303. The two sets of first slide cylinders 302 are connected to the first clamping seat 300 and the second clamping seat 301, respectively, and the second electric push rod 303 is arranged between the first clamping seat 300 and the second clamping seat 301. During operation, the second electric push rod 303 first applies a force to the first clamping seat 300 and the second clamping seat 301 to move them away from each other. Then, the robot grasps the moving contact 7 and places it between the first clamping seat 300 and the second clamping seat 301. Afterwards, the second electric push rod 303 is controlled to retract, and the first clamping seat 300 and the second clamping seat 301 are moved closer to each other under the action of the first slide cylinder 302, clamping the moving contact 7 in place. Then, the first movable seat 10 can be driven by the first drive mechanism 31, and the moving contact 7 can be driven to move along the first direction, so that the moving contact 7 can extend into the interior of the moving conductor 6.

[0073] It is easy to understand that in other optional embodiments, the first driving mechanism 31 may also include a driving motor and a transmission mechanism. The transmission mechanism may be a common rack and pinion transmission mechanism or a belt transmission mechanism. The driving motor drives the rack or transmission belt to move, and the first movable seat 10 is fixed on the above-mentioned rack or transmission belt. The first movable seat 10 can move back and forth along the first direction under the drive of the first driving mechanism 31.

[0074] Further, combined Figure 1 、 Figure 2 and Figure 5As shown, the automated assembly equipment provided by this embodiment also includes a first calibration component 35, and the first calibration component 35 includes an opening and closing mechanism and a third linear drive 350. The opening and closing mechanism includes a first movable block 351 and a second movable block 352 that can open and close relative to each other along the second direction, and the first movable block 351 and the second movable block 352 are both provided with a first calibration shaft 353 that is adapted to the pin hole of the moving contact 7. The third linear drive 350 is connected to the opening and closing mechanism and is used to drive the opening and closing mechanism to reciprocate along the third direction. The moving contact 7 is provided at its end with an opening extending along its axial direction and an opening extending along its radial direction. For the convenience of description, the opening extending along the radial direction of the moving contact 7 is referred to as the first connecting pin hole 70, and the opening extending along its axial direction is referred to as the jack 71. Accordingly, in combination Figure 6 and Figure 10 As shown, pin holes for connection are provided at both ends of the insulating pull rod 8. For the convenience of description, the pin hole provided at one end of the insulating pull rod 8 close to the moving contact 7 is called the second connecting pin hole 80, and the pin hole provided at the other end is called the third connecting pin hole 81. During assembly, one end of the insulating pull rod 8 is inserted into the socket 71 of the moving contact 7, and the second connecting pin hole 80 on the insulating pull rod 8 is aligned with the first connecting pin hole 70 on the moving contact 7, and then the connecting pin shaft 9 is used to pass through the first connecting pin hole 70 and the second connecting pin hole 80 for connection. The third connecting pin hole 81 provided at the other end of the insulating pull rod 8 is used to connect to the driving structure, so that the driving structure can drive the insulating pull rod 8 to move and drive the moving contact 7 to move relative to the static contact to realize circuit on and off.

[0075] To improve assembly accuracy, in this embodiment, the first calibration assembly 35 is used to calibrate the angular accuracy of the movable contact 7 along the circumferential direction. Specifically, before the robot grasps and places the movable contact 7, the third linear actuator 350 drives the opening and closing mechanism to move in the opposite direction along the third direction, moving the opening and closing mechanism to a position that clears the movable contact 7. After the movable contact 7 is placed in the first clamping mechanism 30, the third linear actuator 350 drives the opening and closing mechanism to move along the third direction to a set position. The set position refers to the position at which, assuming the movable contact 7 is accurately placed, the first calibration axis 353 is aligned with the first connecting pin hole 70 on the movable contact 7 when the opening and closing mechanism is in this position. A pneumatic clamp can be used as the opening and closing mechanism, with the first movable block 351 and the second movable block 352 controlled by inflation or deflating. This allows the first calibration axis 353 to cooperate with the first connecting pin hole 70 on the movable contact 7 to determine whether the angular accuracy of the movable contact 7 along the circumferential direction is correct.

[0076] Accordingly, combined Figure 1 、 Figure 2 、 Figure 9 and Figure 10As shown, the second driving assembly 4 in the embodiment includes a third moving seat 12, a second clamping mechanism 40 and a fifth driving mechanism 41, and the automated assembly device further includes a second calibration assembly arranged on the side where the second driving assembly 4 is located. Specifically, the third moving seat 12 is slidingly arranged on the workbench 1 along a first direction, the second clamping mechanism 40 is openably and closably arranged on the third moving seat 12 along a third direction, the second clamping mechanism 40 is used for clamping and positioning the insulating pull rod 8, and the fifth driving mechanism 41 is connected with the third moving seat 12 and is used for driving the third moving seat 12 to reciprocally slide along the first direction. In work, the insulating pull rod 8 can be grabbed by the mechanical hand and placed on the second clamping mechanism 40. Specifically, the second clamping mechanism 40 includes a fifth linear driver 400, a first clamping block 401 and a second clamping block 402. The first clamping block 401 and the second clamping block 402 can be driven to move away from each other by the fifth linear driver 400. One end of the insulating pull rod 8 is inserted between the first clamping block 401 and the second clamping block 402 by the mechanical hand, and then the insulating pull rod 8 is clamped and positioned by the first clamping block 401 and the second clamping block 402. Then, the third moving seat 12 is driven by the fifth driving mechanism 41 to drive the second clamping mechanism 40 and the insulating pull rod 8 to move reversely along the first direction until the end of the insulating pull rod 8 is connected with the movable contact 7.

[0077] The fifth linear driver 400 in the embodiment is fixedly arranged on the third moving seat 12. The first clamping block 401 is fixedly connected with one side of the fifth linear driver 400 and can move along the third direction under the driving of the fifth linear driver 400. The second clamping block 402 is fixedly connected with the other side of the fifth linear driver 400 and can move reversely along the third direction under the driving of the fifth linear driver 400. The fifth linear driver 400 in the embodiment is a bidirectional electric push rod. The first clamping block 401 and the second clamping block 402 can be driven to move away from or close to each other by the fifth linear driver 400. It is easy to understand that in some alternative embodiments, the first clamping block 401 and the second clamping block 402 can be driven to close to each other by the fifth linear driver 400 to clamp and position the insulating pull rod 8. In the embodiment, a tension spring 43 is arranged between the first clamping block 401 and the second clamping block 402. The two ends of the tension spring 43 are fixedly connected with the first clamping block 401 and the second clamping block 402 respectively and press the two blocks to have a tendency to move close to each other. When the first clamping block 401 and the second clamping block 402 need to move away from each other to facilitate the insertion of the insulating pull rod 8, an acting force is applied to the first clamping block 401 and the second clamping block 402 by the fifth linear driver 400 to overcome the acting force of the tension spring 43. When the first clamping block 401 and the second clamping block 402 need to move close to each other to clamp and position the insulating pull rod 8, the fifth linear driver 400 is controlled to retract, and the first clamping block 401 and the second clamping block 402 move close to each other under the action of the tension spring 43 to clamp and position the insulating pull rod 8.

[0078] The fifth driving mechanism 41 in the embodiment is a slide table air cylinder. It is easy to understand that in other alternative embodiments, the fifth driving mechanism 41 can also include a driving motor and a transmission mechanism, which can be a common gear and rack transmission mechanism or a belt transmission mechanism. The third moving seat 12 is fixed on the rack or transmission belt, and the third moving seat 12 can reciprocate in the first direction under the driving of the fifth driving mechanism 41.

[0079] In order to improve the assembly accuracy, the second calibration assembly is used to calibrate the angular accuracy of the dynamic insulation pull rod 8 in the circumferential direction in the embodiment. Specifically, the second calibration assembly includes two second calibration shafts 42, which are respectively arranged on the first clamping block 401 and the second clamping block 402, and the second calibration shafts 42 are matched with the end hole structure (the third connecting pin hole 81) of the insulation pull rod 8. By arranging the second calibration shafts 42, it can be judged whether the insulation pull rod 8 is placed in place, and the alignment accuracy of the second connecting pin hole 80 on the insulation pull rod 8 and the first connecting pin hole 70 on the moving contact 7 in the subsequent assembly step is improved.

[0080] In addition, in combination with Figure 7 It is shown that the moving conductor 6 has a butt joint hole 60 for the end of the moving contact 7 to pass through. In the related art, the moving contact 7 is assembled into the moving conductor 6 by manual assembly operation. However, the following problems still exist in the process: Since the part of the moving contact 7 passing through the butt joint hole 60 is designed to be in contact with the inner wall of the butt joint hole 60, it is difficult to ensure that the moving contact 7 completely translates along its axis in actual operation, which inevitably causes the end of the moving contact 7 to collide with the edge of the butt joint hole 60, thereby causing damage to the inside of the moving conductor 6 (the moving contact 7 is generally made of metal, and the part of the moving conductor 6 where the butt joint hole 60 is located is generally made of polytetrafluoroethylene).

[0081] In order to solve the above technical problems, in combination with Figure 1 、 Figure 2 and Figure 8As shown, the first drive assembly 3 in this embodiment further includes a second drive mechanism 32, a third drive mechanism 33, and a first guide rod 34. The second drive mechanism 32 is disposed on the first movable seat 10 and is used to push the contact 7 in the first direction. The third drive mechanism 33 is disposed on the other side of the positioning assembly 2 relative to the second drive mechanism 32 in the first direction. The first guide rod 34 is connected to the third drive mechanism 33 and can be driven by the third drive mechanism 33 to move in the opposite direction of the first direction until it docks with the moving contact 7. In this embodiment, the first guide rod 34 is provided with a first protrusion 340 for plugging into the end hole structure of the moving contact 7. The docking refers to the first protrusion 340 on the first guide rod 34 extending into the socket 71 of the moving contact 7. During assembly, the third drive mechanism 33 drives the first guide rod 34 to move in the opposite direction of the first direction until the end of the first guide rod 34 passes through the moving conductor 6 and docks with the moving contact 7. The second driving mechanism 32 then drives the movable contact 7 to push the first guide rod 34 along the first direction and move along the first direction until the movable contact 7 passes through the docking hole 60 in the movable conductor 6 and extends into the movable conductor 6 .

[0082] In this embodiment, the first guide rod 34 is also made of polytetrafluoroethylene. Even if the end of the first guide rod 34 bumps against the mating hole 60 in the movable conductor 6 when passing through it, it will not damage the movable conductor 6. The guidance of the first guide rod 34 prevents the end of the movable contact 7 from bumping against the edge of the mating hole 60 in the movable conductor 6.

[0083] Furthermore, since the first guide rod 34 and the insulating pull rod 8 need to be respectively extended into the moving conductor 6 along the same side of the moving conductor 6, the automated assembly equipment provided in this embodiment also includes a second movable seat 11 slidably disposed on the workbench 1 and a fourth drive mechanism 16 connected to the second movable seat 11, the fourth drive mechanism 16 being used to drive the second movable seat 11 to slide back and forth along the third direction. The third drive mechanism 33 and the second drive assembly 4 are spaced apart along the third direction and both are disposed on the second movable seat 11. By providing the second movable seat 11 and the fourth drive mechanism 16, the positions of the second drive assembly 4 and the third drive mechanism 33 along the third direction can be switched, thereby aligning the insulating pull rod 8 or the first guide rod 34 with the moving conductor 6 in the corresponding assembly step.

[0084] The second driving mechanism 32 in this embodiment is an electric cylinder, which can accurately control the position and thrust. The third driving mechanism 33 in this embodiment is a slide cylinder, and the fourth driving mechanism 16 is an electric push rod.

[0085] Combine Figure 1 、 Figure 11 and Figure 12As shown, the third drive assembly 5 in this embodiment includes a fourth movable base 13, a sixth linear actuator 50, and a seventh linear actuator 51. The fourth movable base 13 is slidably mounted on the workbench 1 along the third direction. The sixth linear actuator 50 is connected to the fourth movable base 13 and is used to drive the fourth movable base 13 to slide back and forth along the third direction. The seventh linear actuator 51 is fixedly mounted on the fourth movable base 13 and is used to drive the connecting pin 9 to move along the second direction. Both the sixth linear actuator 50 and the seventh linear actuator 51 in this embodiment are electric push rods. In this embodiment, a positioning groove (not shown) for positioning the connecting pin 9 is formed at the output end of the seventh linear actuator 51. A robotic arm can grasp the connecting pin 9 and place it within the positioning groove. Both the sixth linear actuator 50 and the seventh linear actuator 51 in this embodiment are electric push rods.

[0086] Furthermore, the third drive assembly 5 in this embodiment further includes a fifth movable base 14, a sixth drive mechanism 52, a sixth movable base 15, an eighth linear actuator 53, a ninth linear actuator 54, and a second guide rod 55. Similar to the aforementioned arrangement of the first guide rod 34, in this embodiment, the second guide rod 55 is provided to engage the connecting pin 9 to prevent the connecting pin 9 from colliding with and damaging the edge of the second connecting pin hole 80 in the insulating pull rod 8.

[0087] Specifically, in this embodiment, the fifth movable base 14 is slidably mounted on the workbench 1, the sixth driving mechanism 52 is connected to the fifth movable base 14 and is used to drive the fifth movable base 14 to slide back and forth in the first direction, the sixth movable base 15 is slidably mounted on the fifth movable base 14, the eighth linear actuator 53 is connected to the sixth movable base 15 and is used to drive the sixth movable base 15 to slide back and forth in the third direction, the ninth linear actuator 54 is fixedly mounted on the sixth movable base 15, and the second guide rod 55 is connected to the ninth linear actuator 54 and can be driven by the ninth linear actuator 54 to move in the opposite direction of the second direction to dock with the connecting pin 9. The second guide rod 55 is provided with a second protrusion 550 for plugging into the end hole structure of the connecting pin 9.

[0088] like Figure 7 As shown, the moving conductor 6 is provided with an assembly hole 61, which allows the connecting pin 9 and the second guide rod 55 to pass through the moving conductor 6 in a radial direction. Before the robot grasps the moving conductor 6 and places it in the positioning assembly 2, the robot grasps the connecting pin 9 and positions it at the output end of the seventh linear actuator 51. The sixth linear actuator 50 drives the fourth movable base 13 to move in the third direction, causing the seventh linear actuator 51 with the connecting pin 9 to move to a predetermined position. The predetermined position is a position that aligns the connecting pin 9 with the first connecting pin hole 70 and the second connecting pin hole 80 during assembly.

[0089] Furthermore, by respectively driving the fifth movable seat 14 and the sixth movable seat 15 through the sixth drive mechanism 52 and the eighth linear actuator 53, the ninth linear actuator 54 and the second guide rod 55 located on the sixth movable seat 15 can be adjusted in position. Before the manipulator grasps the moving conductor 6 and places it in the positioning assembly 2, the ninth linear actuator 54 and the second guide rod 55 are first adjusted to a position that allows them to avoid the moving conductor 6. Thereafter, the manipulator grasps the moving conductor 6 and places it in the positioning assembly 2. The sixth drive mechanism 52 and the eighth linear actuator 53 then respectively drive the fifth movable seat 14 and the sixth movable seat 15, thereby adjusting the position of the ninth linear actuator 54 and the second guide rod 55 located on the sixth movable seat 15, so that the second guide rod 55 moves coaxially with the connecting pin 9.

[0090] In this embodiment, the sixth driving mechanism 52 is a slide cylinder, and the eighth linear actuator 53 and the ninth linear actuator 54 are both electric push rods.

[0091] The process of assembling circuit breaker contacts using the automated assembly equipment provided in this embodiment is described as follows:

[0092] First, a manipulator grasps the moving conductor 6, the moving contact 7, the insulating pull rod 8, and the connecting pin 9 and places them in corresponding positions. The third driving mechanism 33 drives the first guide rod 34 to pass through the moving conductor 6 in the opposite direction of the first direction until the first protrusion 340 on the first guide rod 34 is inserted into the socket 71 of the moving conductor 6. Then, the first driving mechanism 31 drives the first movable seat 10 to move in the first direction, driving the moving contact 7 and the second driving mechanism 32 to move in the first direction. During this process, the moving contact 7 pushes the first guide rod 34 to move in the first direction. After the stroke of the first driving mechanism 31 reaches a certain value, the second driving mechanism 32 pushes the contact 7 so that the moving contact 7 pushes the first guide rod 34 to move in the first direction until the first connecting pin hole 70 on the moving contact 7 is aligned with the second guide rod 55.

[0093] Thereafter, the third driving mechanism 33 drives the first guide rod 34 to withdraw from the movable conductor 6 in the first direction, and the fourth driving mechanism 16 drives the second movable seat 11 to move in the third direction, thereby switching the positions of the first guide rod 34 and the insulating rod 8 so that the insulating rod 8 is aligned with the movable conductor 6. The fifth driving mechanism 41 then drives the third movable seat 12 and the insulating rod 8 located thereon to move in the opposite direction of the first direction until the insulating rod 8 moves to align its second connecting pin hole 80 with the first connecting pin hole 70.

[0094] Then the second guide rod 55 is driven to move in the reverse direction of the second direction by the ninth linear driver 54, so that the second guide rod 55 is in butt joint with the connecting pin shaft 9, and finally the connecting pin shaft 9 is driven to move in the second direction by the seventh linear driver 51, in the process, the connecting pin shaft 9 pushes the second guide rod 55 until the end of the connecting pin shaft 9 passes through the first connecting pin hole 70 and the second connecting pin hole 80 in the second direction.

[0095] After that, the nut is grabbed by the mechanical hand and screwed on the end of the connecting pin shaft 9, realizing the assembly of the moving contact 7 and the insulating pull rod 8.

[0096] It should be noted that the mechanical hand described in the embodiment is an existing device, and its working principle will not be described again. In addition, the displacement of each component and the position thereof can also be judged by common detection elements such as displacement sensors and position detection sensors, so as to ensure that the first connecting pin hole 70, the second connecting pin hole 80 and the connecting pin shaft 9 are aligned. The setting and use of the above detection elements belong to the technology well known in the art, and will not be described again here.

[0097] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the above specific embodiments and the drawings. Any modification which does not deviate from the functional and structural principles of the present application shall be included in the scope of the claims.

Claims

1. An automated assembly device for circuit breaker contacts, used for assembling a moving conductor (6), a moving contact (7) and an insulating pull rod (8) in the circuit breaker contact into one body through a connecting pin (9), characterized in that: The automated assembly equipment comprises a workbench (1), a positioning assembly (2), a first drive assembly (3), a second drive assembly (4) and a third drive assembly (5), wherein the first drive assembly (3), the positioning assembly (2) and the second drive assembly (4) are arranged in sequence along a first direction and are all provided on the workbench (1); The positioning assembly (2) is used to position the moving conductor (6), the first driving assembly (3) is used to drive the moving contact (7) to move along the first direction and extend into the moving conductor (6), the second driving assembly (4) is used to drive the insulating pull rod (8) to move in the opposite direction of the first direction and extend into the moving conductor (6), and the third driving assembly (5) is used to drive the connecting pin shaft (9) to move along the second direction and insert into the pin hole of the moving contact (7) and the pin hole of the insulating pull rod (8); The first direction is in the same direction as the axial direction of the moving conductor (6) positioned on the positioning component (2), and the second direction is perpendicular to the first direction; The automated assembly equipment further includes a first calibration component (35), the first calibration component (35) including an opening and closing mechanism and a third linear drive (350), the opening and closing mechanism including a first movable block (351) and a second movable block (352) capable of relatively opening and closing along a second direction, the first movable block (351) and the second movable block (352) both being provided with a first calibration shaft (353) adapted to a pin hole of the moving contact (7), and the third linear drive (350) being connected to the opening and closing mechanism and being used for driving the opening and closing mechanism to reciprocate along a third direction.

2. The automated assembly equipment according to claim 1, wherein: The positioning assembly (2) comprises a clamping mechanism (21) and a positioning plate (20), wherein the positioning plate (20) is provided with a positioning hole (200) for cooperating with a connection hole located at an end of a moving conductor (6), and the clamping mechanism (21) comprises: A first clamping seat (210) formed with a first clamping portion; A second clamping seat (211) formed with a second clamping portion; a first linear drive (212) disposed on the workbench (1) and used to drive the first clamping seat (210) to reciprocate along a third direction; and a second linear drive (213), which is arranged on the workbench (1) and is used to drive the second clamping seat (211) to reciprocate along a third direction; The first clamping portion and the second clamping portion cooperate to clamp the moving contact (7), and the third direction is perpendicular to both the first direction and the second direction.

3. The automated assembly equipment according to claim 1, wherein: The first driving component (3) comprises: A first movable seat (10) is slidably disposed on the workbench (1) along a first direction; a first clamping mechanism (30) which is arranged on the first movable seat (10) so as to be openable and closable along a third direction; and a first driving mechanism (31), which is connected to the first movable seat (10) and is used to drive the first movable seat (10) to slide back and forth in a first direction; The first clamping mechanism (30) is used for clamping and positioning the movable contact (7), and the third direction is perpendicular to both the first direction and the second direction.

4. The automated assembly equipment according to claim 3, wherein: The first drive assembly (3) further comprises: a second driving mechanism (32), which is arranged on the first movable seat (10) and is used to push the contact (7) along a first direction; a third driving mechanism (33) disposed on the other side of the positioning assembly (2) relative to the second driving mechanism (32) along the first direction; and a first guide rod (34), which is connected to the third drive mechanism (33) and can be moved in the opposite direction of the first direction under the drive of the third drive mechanism (33) to dock with the moving contact (7); The first guide rod (34) is provided with a first protrusion (340) for plugging into the end hole structure of the moving contact (7).

5. The automated assembly equipment according to claim 4, wherein: The automated assembly equipment further comprises a second movable seat (11) slidably disposed on the workbench (1) and a fourth drive mechanism (16) connected to the second movable seat (11), wherein the fourth drive mechanism (16) is used to drive the second movable seat (11) to slide back and forth along a third direction; The third driving mechanism (33) and the second driving assembly (4) are spaced apart along the third direction and both are provided on the second movable seat (11).

6. The automated assembly equipment according to claim 1, wherein: The second driving assembly (4) comprises: A third movable seat (12) is slidably disposed on the workbench (1) along a first direction; A second clamping mechanism (40) is disposed on the third movable seat (12) so as to be openable and closable along a third direction; and a fifth driving mechanism (41), which is connected to the third movable seat (12) and is used to drive the third movable seat (12) to slide back and forth along the first direction; The second clamping mechanism (40) is used to clamp and position the insulating pull rod (8), and the third direction is perpendicular to both the first direction and the second direction.

7. The automated assembly equipment according to claim 6, wherein: The second clamping mechanism (40) comprises: a fifth linear actuator (400), which is fixedly mounted on the third movable seat (12); a first clamping block (401) fixedly connected to one side of the fifth linear actuator (400) and capable of moving along a third direction under the drive of the fifth linear actuator (400); and a second clamping block (402), which is fixed to the other side of the fifth linear actuator (400) and is capable of moving in the opposite direction along the third direction under the drive of the fifth linear actuator (400); The first clamping block (401) and the second clamping block (402) cooperate to clamp and position the insulating pull rod (8); The automated assembly equipment further includes a second calibration component, which includes two second calibration shafts (42). The two second calibration shafts (42) are respectively arranged on the first clamping block (401) and the second clamping block (402), and the second calibration shafts (42) are adapted to the end hole structure of the insulating pull rod (8).

8. The automated assembly equipment according to claim 1, wherein: The third driving assembly (5) comprises: A fourth movable seat (13) is slidably arranged on the workbench (1) along a third direction; a sixth linear actuator (50), connected to the fourth movable seat (13) and used to drive the fourth movable seat (13) to slide back and forth along a third direction; and a seventh linear actuator (51), which is fixedly disposed on the fourth movable seat (13) and is used to drive the connecting pin (9) to move along the second direction; Wherein, a positioning groove for positioning the connecting pin shaft (9) is formed at the output end of the seventh linear actuator (51).

9. The automated assembly equipment according to claim 8, wherein: The third drive assembly (5) further comprises: a fifth movable seat (14) slidably disposed on the workbench (1); a sixth driving mechanism (52), connected to the fifth movable seat (14) and used to drive the fifth movable seat (14) to slide back and forth in a first direction; a sixth movable seat (15) slidably disposed on the fifth movable seat (14); an eighth linear actuator (53), which is connected to the sixth movable seat (15) and is used to drive the sixth movable seat (15) to slide back and forth along a third direction; a ninth linear actuator (54) fixedly mounted on the sixth movable seat (15); and a second guide rod (55), which is connected to the ninth linear actuator (54) and can be moved in the reverse direction along the second direction under the drive of the ninth linear actuator (54) to dock with the connecting pin (9); The second guide rod (55) is provided with a second protrusion (550) for plugging into the end hole structure of the connecting pin shaft (9).

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