An automatic movable and static contact assembly loading and assembling unit

Abstract

The application discloses an automatic dynamic and static contact assembly loading and assembling unit, which comprises a dynamic and static contact carrying mechanism, the dynamic and static contact carrying mechanism comprises a mounting seat, a dynamic contact hand grabbing assembly, a static contact hand grabbing assembly and a pressing assembly; the static contact hand grabbing assembly is fixed on the mounting seat and is used for clamping a static contact assembly; the dynamic contact hand grabbing assembly is fixed on the mounting seat and is used for clamping a dynamic contact assembly; the pressing assembly is arranged on the mounting seat and comprises a plurality of pressing rods penetrating through the mounting seat to the lower side of the mounting seat, the pressing rods are connected with a pressing cylinder, and the plurality of pressing rods are used for pressing and fixing the dynamic and static contact assembly on a circuit breaker base, manual assembling of the dynamic and static contact is replaced by the application, all positions of the dynamic and static contact can be considered at the same time, quality problems caused by human factors can be avoided under the premise that the operation meets the requirements of the product itself, and labor cost and management cost are reduced.

Description

Technical Field

[0001] This invention belongs to the field of circuit breaker assembly equipment, and more specifically relates to an automatic moving and stationary contact assembly unit. Background Technology

[0002] During the assembly process of a circuit breaker, a large number of parts need to be assembled into the base (housing). Currently, the moving and stationary contact assemblies are assembled manually. For example... Figure 8 and Figure 9 As shown, the stationary contact assembly and the moving contact assembly are two independent parts that need to be assembled in fixed positions into the base. However, both are composed of multiple parts, making it difficult to simultaneously monitor the position of all parts during manual assembly. This results in high operational difficulty, high labor intensity, cumbersome manpower allocation, low efficiency, and significant management challenges. In recent years, rising labor costs and difficulties in recruiting workers have further exacerbated the need for automated equipment to replace manual labor. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a method for assembling moving and stationary contacts using machinery instead of manual labor. This method can simultaneously consider all positions of the moving and stationary contacts, ensuring that the operation meets the requirements of the product itself, avoiding quality problems caused by human factors, and reducing labor and management costs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic moving and stationary contact assembly feeding and assembly unit, comprising a moving and stationary contact conveying mechanism, wherein the moving and stationary contact conveying mechanism comprises a mounting base, a moving contact gripping assembly, a stationary contact gripping assembly, and a pressing assembly;

[0005] A stationary contact gripper assembly, which is fixed on the mounting base and used to hold the stationary contact assembly;

[0006] A moving contact gripper assembly, which is fixed on the mounting base, is used to hold the moving contact assembly;

[0007] A pressing assembly, which is mounted on a mounting base, includes several pressing rods passing through the mounting base to its lower part, the pressing rods being connected to a pressing cylinder, the pressing rods being used to press and fix the moving and stationary contact assemblies to the circuit breaker base.

[0008] Furthermore, the stationary contact gripper assembly includes a clamping member and a stationary contact claw. The stationary contact claw is connected to a stationary contact claw cylinder. The clamping member includes two clamping pins, with a clamping slot formed between the two clamping pins. The stationary contact claw is used to clamp the wire clamp of the stationary contact, and the clamping member is used to clamp the arc-starting plate.

[0009] Furthermore, the moving contact gripper assembly includes a tensioning pin and a moving contact claw. The moving contact claw is connected to a moving contact claw cylinder. The moving contact claw is used to grip the magnetic yoke of the moving contact. The tensioning pin extends into the hole of the moving contact lever.

[0010] Furthermore, the tensioning pin includes a rod and a head, the head including at least two elastic pins forming an expansion gap between the elastic pins.

[0011] Furthermore, the moving contact gripper assembly also includes a positioning block, on which a positioning groove is provided for accommodating the wire clamp of the moving contact.

[0012] Furthermore, the mounting base is also provided with several positioning pins.

[0013] Furthermore, the mounting base is connected to a rotary cylinder.

[0014] Furthermore, the end of the pressure rod faces the moving contact assembly and the stationary contact assembly.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By manually placing the moving and stationary contact assemblies in the mold in a standard posture in advance for later use, during the actual installation process, the moving and stationary contact handling mechanism directly grabs the moving and stationary contact assemblies in the mold in their original state and transfers them to the base of the circuit breaker. Multiple assemblies can be placed in advance for later use. In this way, in the actual automated assembly process, there is no need for manual intervention in the intermediate assembly steps. The mechanical assembly of the moving and stationary contacts is replaced by mechanical assembly. Under the premise of ensuring that the operation meets the requirements of the product itself, quality problems caused by human factors are avoided, and labor costs and management costs are reduced. Attached Figure Description

[0016] Figure 1 Schematic diagram of an automatic moving and stationary contact assembly unit Figure 1 ;

[0017] Figure 2 Schematic diagram of an automatic moving and stationary contact assembly unit Figure 2 ;

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the moving and stationary contact conveying mechanism Figure 1 ;

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the moving and stationary contact conveying mechanism Figure 2 ;

[0020] Figure 5 for Figure 4 Enlarged view of section A in the middle;

[0021] Figure 6 A three-dimensional structural diagram of the moving contact gripper and the moving contact gripper cylinder. Figure 1 ;

[0022] Figure 7 A three-dimensional structural diagram of the moving contact gripper and the moving contact gripper cylinder. Figure 2 ;

[0023] Figure 8 This is a three-dimensional structural diagram of the moving and stationary contact assembly and the mold;

[0024] Figure 9 This is a three-dimensional structural diagram of the moving and stationary contact assembly and the circuit breaker base.

[0025] Reference numerals: 1. Three-axis module; 2. Lifting and positioning mechanism; 3. Flowing carrier plate; 4. Torsion spring mechanism; 5. Moving and stationary contact conveying mechanism; 511. Upper mounting plate; 512. Lower mounting plate; 52. Rotary cylinder; 53. Pressing cylinder; 531. Pressing block; 532. Pressing rod; 5321. Compression spring; 54. Clamping pin; 55. Moving contact gripper; 551. Moving contact gripper cylinder; 552. Clamping block; 553. Positioning block; 56. Tensioning pin; 561. Rod; 562. Elastic pin; 57. Positioning block; 58. Stationary contact gripper; 581. Stationary contact gripper cylinder; 59. Positioning pin; 61. Moving contact assembly; 611. Lever; 612. Magnetic yoke; 613. Moving contact wire clamp; 62. Stationary contact assembly; 621. Arc-starting plate; 622. Stationary contact wire clamp; 7. Mold; 8. Circuit breaker base. Detailed Implementation

[0026] Reference Figures 1 to 9 The embodiments of the automatic moving and stationary contact assembly unit of the present invention will be further described.

[0027] In the description of this invention, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0028] 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 technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment, the term "moving contact assembly" refers to a combination of a moving contact assembly and a stationary contact assembly.

[0030] like Figure 1 As shown, the entire automatic moving and stationary contact assembly unit includes the following steps.

[0031] ① Material arrival of moving and stationary contact carriers: The material is conveyed from the previous unit's conveyor line to the moving and stationary contact carrier lifting and positioning mechanism 2. The lifting and positioning cylinders are activated to lift the moving and stationary contact carriers off the conveyor belt and position them on the moving and stationary contact carrier lifting and positioning mechanism 2, ready for the material handling mechanism to pick up.

[0032] ② Circuit breaker base 8 positioning: The circuit breaker base 8 is carried by the mobile carrier plate 3. After the previous assembly unit arrives at the positioning position on the transport line, it positions the circuit breaker base 8 and feeds the signal back to the controller. Then, the torsion spring mechanism 4 is activated to release the torsion spring of the rotating shaft that has been installed on the circuit breaker base 8.

[0033] ③ Three-axis module 1 and conveying mechanism: After receiving the signal that the material has arrived at the lifting mechanism, the three-axis module 1, together with the moving and stationary contact conveying mechanism 5, moves to the top of the moving and stationary contact carrier. During the downward movement, the clamping part of the moving and stationary contact conveying mechanism 5 clamps the moving and stationary contact assembly 62 and transports it to the circuit breaker base 8 on the mobile carrier plate 3 on the circuit breaker base 8 and installs it in place. Then the torsion spring mechanism 4 is released, and the moving and stationary contacts are locked on the circuit breaker base 8. The assembly of the three moving and stationary contact assemblies 62 of the three circuit breakers is completed in one go. The mobile carrier plate 3 of the circuit breaker base 8 continues to move to the next assembly unit.

[0034] ④ Return of moving and stationary contact carriers: After all 6 sets of moving and stationary contact assemblies 62 on the moving and stationary contact carriers have been removed, the moving and stationary contact carrier lifting and positioning mechanism 2 descends and places the moving and stationary contact carriers back onto the conveyor line of the previous unit. The conveyor line then sends them to the return conveyor line. Once in place, the return conveyor line is lifted up, simultaneously separating the moving and stationary contact carriers from the conveyor line of the previous unit. The return conveyor line then sends them to the carrier recycling unit on the left, completing the carrier return.

[0035] In this embodiment, the moving and stationary contact handling mechanism 5 includes a mounting base, a moving contact gripping assembly, a stationary contact gripping assembly, and a pressing assembly;

[0036] A stationary contact gripper assembly, fixed to the mounting base, is used to clamp the stationary contact assembly 62; a moving contact gripper assembly, fixed to the mounting base, is used to clamp the moving contact assembly 61; a pressing assembly, disposed on the mounting base, includes several pressing rods 532 passing through the mounting base to its lower part, the pressing rods 532 being connected to a pressing cylinder 53, the several pressing rods 532 being used to press and fix the moving and stationary contact assemblies 62 to the circuit breaker base 8.

[0037] The moving and stationary contact handling mechanism 5 is mounted on the three-axis module 1. Taking the three-axis module 1 as an example, it has three sets of moving and stationary contact handling mechanisms 5, which means that the moving and stationary contact assemblies 62 of three circuit breakers can be handled at one time.

[0038] The preferred embodiment of the stationary contact gripper assembly includes a clamping member and a stationary contact gripper 58. The stationary contact gripper 58 is connected to a stationary contact gripper cylinder 581. The clamping member includes two clamping pins 54, and a clamping slot is formed between the two clamping pins 54. The stationary contact gripper 58 is used to clamp the wire clamp 622 of the stationary contact, and the clamping member is used to clamp the arc-starting plate 621.

[0039] like Figure 4 , 5 and Figure 8 As shown, the arc-starting plate 621 is generally flat, and the two clamping pins 54 are located on both sides of the arc-starting plate 621. The width of the clamping gap formed between the two is slightly smaller than the thickness of the arc-starting plate 621. That is, the two clamping pins 54 cooperate with the stationary contact claws 58 to clamp and fix the two heavier main parts of the stationary contact assembly 62, so that the stationary contact assembly 62 can be grasped and transferred as a whole.

[0040] Correspondingly, there is a pressure rod 532 at the wire clamp and arc-starting plate 621 that hold the stationary contact assembly 62. The pressure rod 532 can push the stationary contact assembly 62 out as a whole and press it onto the circuit breaker base 8 through the action of the pressing cylinder 53.

[0041] The preferred embodiment of the moving contact gripper assembly includes a tensioning pin 56 and a moving contact gripper 55. The moving contact gripper 55 is connected to a moving contact gripper cylinder 551. The moving contact gripper 55 is used to grip the magnetic yoke 612 of the moving contact. The tensioning pin 56 extends into the hole of the moving contact lever 611.

[0042] like Figure 4 , 5 and Figure 8 As shown, the preferred tensioning pin 56 includes a rod portion 561 and a head. The head includes at least two elastic pins 562, and an expansion gap is formed between the elastic pins 562. In this embodiment, there are four elastic pins 562. The four elastic pins 562 are evenly distributed around the circumference of the rod portion 561. When they are inserted into the hole of the moving contact lever 611, they are compressed and contracted, and are stuck in the lever 611.

[0043] Correspondingly, a pressure rod 532 is provided at the magnetic yoke 612 and lever 611 that hold the moving contact assembly 61. The pressure rod 532 can push the moving contact assembly 61 out as a whole and press it onto the circuit breaker base 8 through the action of the pressing cylinder 53.

[0044] The preferred embodiment of the moving contact gripping assembly further includes a positioning block 57553. The positioning block 57553 has a positioning groove for accommodating the wire clamp 613 of the moving contact. In the moving contact assembly 61, the wire clamp 613 of the moving contact is fixedly connected to the magnetic yoke 612. Here, the entire assembly can be gripped simply by clamping the magnetic yoke 612.

[0045] In this embodiment, the preferred moving contact gripper 55 is as follows: Figure 6 and Figure 7 As shown, it includes a positioning block 57553 and a clamping block 552. The positioning block 57553 is fixed on the mounting base, and the clamping block 552 is connected to the moving contact gripper cylinder 551. Through the action of the moving contact gripper cylinder 551, the clamping block 552 moves closer to or further away from the positioning block 57553, so as to clamp or release the magnetic yoke 612.

[0046] In this embodiment, the clamping block 552 is provided with a protruding ridge on the side facing the positioning block 57553, and the protruding ridge can cooperate with the groove on the surface of the magnetic yoke 612.

[0047] In this preferred embodiment, the mounting base is further provided with a plurality of positioning pins 59, some of which are used to extend into the holes of the moving contact assembly 61, and some of which can be located at the edge of the moving and stationary contact assembly 62, and are used to limit the position of the moving and stationary contacts in general.

[0048] The preferred mounting base in this embodiment includes an upper mounting plate 511 and a lower mounting plate 512, forming an installation space between the upper mounting plate 511 and the lower mounting plate 512. Both the moving contact gripping assembly and the stationary contact gripping assembly are mounted on the lower mounting plate 512. The pressing cylinder 53 is fixed on the upper mounting plate 511, and a pressing block 531 is connected to the pressing cylinder 53. Several through holes are opened on the lower mounting plate 512. Preferably, the bottom end of the pressing rod 532 passes through the through hole, and a compression spring 5321 is provided between the top end and the mounting plate, so that the top end of the pressing rod 532 abuts against the pressing block 531 rather than being fixedly connected. The pressing rod 532 can be installed in different positions as needed to adapt to different product models.

[0049] In this preferred embodiment, the mounting base is connected to a rotary cylinder 52, which is located on the upper mounting plate 511 and is fixedly connected to the three-axis module 1.

[0050] The specific usage process is as follows: When the moving and stationary contact conveying mechanism 5 moves above the moving and stationary contact carrier, the three-axis module 1 slowly moves downward. The moving contact gripper assembly and the stationary contact gripper assembly are respectively inserted into the corresponding positions of the moving contact assembly 61 and the stationary contact assembly 62. The positioning pin 59 positions the moving and stationary contact assembly 62, and the clamping pin 54 and the tensioning pin 56 simultaneously fix the corresponding positions of the stationary contact assembly 62 and the moving contact assembly 61. Subsequently, the stationary contact gripper cylinder 581 and the moving contact gripper cylinder 551 act simultaneously to clamp the moving contact assembly 61 and the stationary contact assembly 62. After clamping is completed, the Z-axis module rises, grabbing the moving and stationary contact assembly 62 and removing it from the mold 7. Figure 8 As shown, the three-axis module 1 moves, and the rotary cylinder 52 drives the entire moving and stationary contact conveying mechanism 5 to rotate the moving and stationary contact assembly 62 by a certain angle and then install it into the circuit breaker base 8. Subsequently, the pressing cylinder 53 actuates and presses the moving and stationary contact assembly 62 into the circuit breaker base 8 through the pressing rod 532. Figure 9 As shown.

[0051] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic feeding and assembly unit for moving and stationary contact assemblies, characterized in that: The mechanism includes a moving and stationary contact transport mechanism, which comprises a mounting base, a moving contact gripping assembly, a stationary contact gripping assembly, and a pressing assembly. A stationary contact gripping assembly, fixed on a mounting base, is used to clamp the stationary contact assembly; a moving contact gripping assembly, fixed on a mounting base, is used to clamp the moving contact assembly; a pressing assembly, disposed on a mounting base, includes several pressing rods passing through the mounting base to its lower part, the pressing rods being connected to a pressing cylinder, the several pressing rods being used to press and fix the moving and stationary contact assemblies to the circuit breaker base; The stationary contact gripper assembly includes a clamping member and a stationary contact gripper. The stationary contact gripper is connected to a stationary contact gripper cylinder. The clamping member includes two clamping pins, and a clamping slot is formed between the two clamping pins. The stationary contact gripper is used to clamp the wire clamp of the stationary contact, and the clamping member is used to clamp the arc-starting plate. The moving contact gripper assembly includes a tensioning pin and a moving contact claw. The moving contact claw is connected to a moving contact claw cylinder. The moving contact claw is used to hold the magnetic yoke of the moving contact. The tensioning pin extends into the hole of the moving contact lever. The tensioning pin includes a rod and a head. The head includes at least two elastic pins, and an expansion gap is formed between the elastic pins. The moving contact gripper assembly also includes a positioning block, on which a positioning groove is provided for accommodating the wire clamp of the moving contact; The mounting base is also provided with several positioning pins, and the mounting base is connected to a rotary cylinder.

2. The automatic moving and stationary contact assembly feeding and assembly unit according to claim 1, characterized in that: The end of the pressure rod faces the moving contact assembly and the stationary contact assembly.

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