Automatic screw back mechanism for circuit breaker
By designing an automatic screw removal mechanism, the problem of low production efficiency of 1+N PT series miniature circuit breakers was solved, realizing automated production and improving production efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SIEMENS CIRCUIT PROTECTION SYST
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-31
AI Technical Summary
The existing 1+N PT series miniature circuit breaker products have low production efficiency, and the semi-automation results in a large impact from human factors, making it difficult to achieve automated production.
Design an automatic screw removal mechanism that includes a clamping device, a screw removal device, and a rejection device. Utilize multiple cylinders and pneumatic grippers to automatically remove screws from circuit breakers and automatically reject defective parts. Combine with a position detection unit to ensure precise operation.
It improved production efficiency, reduced human resources, ensured the stability and reliability of the circuit breaker production process, and achieved highly efficient automated production.
Smart Images
Figure CN224582211U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of low-voltage electrical technology, and more particularly to an automatic screw removal mechanism for circuit breakers. Background Technology
[0002] It is known that the 1+N PT series miniature circuit breakers include a flexible cable, making automated production of this system difficult. Understandably, the current 1+N PT series products rely on a semi-automatic process combining manual labor and equipment for the riveting, riveting, and subsequent screw removal processes, resulting in low production efficiency. Furthermore, the large number of products awaiting production means that the semi-automation process allows for significant human intervention.
[0003] In order to optimize and solve the production technology problems, especially for the 1+N PT series miniature circuit breakers, those skilled in the art have developed a new type of automatic screw removal mechanism for circuit breakers to ensure the efficiency and accuracy of automated production of these miniature circuit breakers. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new type of automatic screw removal mechanism for circuit breakers, which can efficiently realize the automatic screw removal of circuit breakers to be manufactured and the automatic rejection of defective parts.
[0005] An automatic screw-removing mechanism for a circuit breaker according to an embodiment of the present invention includes a clamping device for clamping and positioning a circuit breaker to be manufactured, comprising a clamping base on which a plurality of support plates are disposed; a positioning drive assembly connected to the support plates and used to push the circuit breaker to a predetermined position; a screw-removing device including a connecting base on which a plurality of pairs of connecting plates are disposed, wherein each pair of connecting plates has a predetermined installation gap; a first drive assembly connected to a pair of connecting plates of the connecting base and located above the connecting plates; and a second drive assembly, which... The circuit breaker is connected between a pair of connecting plates of the connecting base and located below the connecting plates; and a rejection device including a position detection unit for detecting whether the screws of the circuit breaker are in an ideal predetermined state; a pneumatic gripper for gripping the circuit breaker that is not in an ideal state; a third drive cylinder, a fourth drive cylinder and a fifth drive cylinder respectively connected to predetermined positions of the connecting base and capable of driving the pneumatic gripper in three different directions of the connecting base to achieve a predetermined gripping action; and a collection member adjacent to one side of the connecting base and located below the pneumatic gripper.
[0006] According to an optional implementation of the present invention, the first driving assembly further includes: a first driving cylinder; and a first driving rod connected to the first driving cylinder; under the driving action of the first driving cylinder, the first driving rod can cooperate to extend or retract to realize the unscrewing action of the upper screw of the circuit breaker.
[0007] According to another optional implementation of the present invention, the first driving component further includes a left and right auxiliary cylinder for driving the first driving rod to achieve displacement in the left and right directions.
[0008] According to another optional implementation of the present invention, the second drive assembly further includes: a second drive cylinder; and a second drive rod connected to the second drive cylinder; under the driving action of the second drive cylinder, the second drive rod can cooperate to extend or retract to realize the unscrewing action of the lower screw of the circuit breaker.
[0009] According to another optional implementation of the present invention, the positioning drive assembly includes a positioning cylinder and a positioning element, wherein the positioning element, under the driving action of the positioning cylinder, realizes the clamping and positioning of the circuit breaker.
[0010] According to another optional implementation of this utility model, the third driving cylinder can perform left and right movements relative to the connecting base, the fourth driving member can perform front and rear movements relative to the connecting base, and the fifth driving cylinder can perform up and down movements relative to the connecting base.
[0011] According to another optional implementation of this utility model, the collecting component is a long strip-shaped receiving slide, which is inclined at a certain angle relative to the connecting base, so as to realize the automatic sliding and recycling of unqualified circuit breakers.
[0012] According to another optional implementation of the present invention, the first driving cylinder and the second driving cylinder are arranged parallel to each other in the mounting gap of the connecting plate, and the third driving cylinder is arranged parallel to the first driving cylinder and the second driving cylinder.
[0013] According to another optional implementation of the present invention, the fourth drive cylinder and the third drive cylinder are arranged perpendicular to each other.
[0014] According to another optional implementation of the present invention, the positioning drive component further includes a limiting cylinder, which works in conjunction with the positioning cylinder to achieve precise limiting of the circuit breaker. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an automatic screw-removing mechanism for a circuit breaker according to one embodiment of this application;
[0016] Figure 2 This is a structural schematic diagram of an automatic screw-removing mechanism for a circuit breaker according to one embodiment of this application, shown from another angle.
[0017] Explanation of reference numerals in the attached figures
[0018] Automatic screw removal mechanism 100, positioning element 132
[0019] Clamping device 10 Limit cylinder 133
[0020] Fixture base 101 Screw removal device 20
[0021] Support plate 102 Connecting base 201
[0022] Positioning cylinder 131, connecting plate 202
[0023] First drive assembly 21, rejection device 30
[0024] First drive cylinder 211, pneumatic gripper 32
[0025] First drive rod 212 Third drive cylinder 33
[0026] Left and right auxiliary cylinders 215, fourth drive cylinder 34
[0027] Second drive assembly 22, fifth drive cylinder 35
[0028] Second drive cylinder 221, collection component 37
[0029] Second drive lever 222 Detailed Implementation
[0030] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of the present utility model are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.
[0031] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.
[0032] To keep the drawings concise, only the parts relevant to this application are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, components with the same structure or function in some figures are only schematically depicted, or only one or more are labeled. Moreover, the accompanying drawings in this application are only for illustrating and understanding the embodiments of this application and are not intended to limit the scope of this application; they are not necessarily drawn to scale.
[0033] In this patent application, nouns and pronouns relating to people are not limited to specific genders.
[0034] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the positional relationship between related parts, rather than to define their absolute positions.
[0035] In this article, "first," "second," etc., are used only to distinguish them from each other, and do not indicate their importance or order.
[0036] In this paper, terms such as “parallel” and “perpendicular” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.
[0037] The orientations or positional relationships indicated in the description of this application are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Specific embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0038] In the actual production line of the 1+N PT series miniature circuit breakers, the manually assembled products are first placed in fixtures on a pallet, and the cables are pre-connected to the terminal blocks. A belt conveyor transports the pallet to the rivet insertion station, where the equipment automatically inserts rivets. After insertion, the equipment automatically checks for missing rivets, and the pallet is then transported to the next station. If a missing rivet is detected, it is automatically rejected; otherwise, it is transported to the riveting station for automatic riveting. After riveting, the pallet is automatically transported to the screw removal station. To efficiently achieve the automatic screw removal and automatic rejection of defective parts in circuit breakers, this application discloses a novel automatic screw removal mechanism 100 for circuit breakers. (See reference...) Figure 1 As can be seen, the automatic screw removal mechanism 100 for miniature circuit breakers of this application includes a clamping device 10, a screw removal device 20, and a rejection device 30.
[0039] The clamping device 10 in the automatic screw removal mechanism of this application is used to clamp and position the circuit breaker to be manufactured, such as the 1+N PT series miniature circuit breaker product. Combined with... Figure 1 and Figure 2 Specifically, the clamping device 10 includes a clamping base 101 and a positioning drive assembly 13. A plurality of support plates 102 are disposed on the clamping base 101. The positioning drive assembly 13 is connected to the support plates 102 and is used to push the circuit breaker to a predetermined position.
[0040] like Figure 1 and Figure 2 As shown, the screw removal device 20 includes a connecting base 201, a first drive assembly 21, and a second drive assembly 22. The connecting base 201 is provided with a plurality of pairs of connecting plates 202, each pair of connecting plates 202 having a predetermined installation gap, which can be used to install the associated drive assembly. Preferably, the first drive assembly 21 is connected between a pair of connecting plates 202 of the connecting base 201 and is located above the connecting plates 202. The second drive assembly 22 is connected between a pair of connecting plates 202 of the connecting base 201 and is located below the connecting plates 202.
[0041] Meanwhile, the rejection device 30 includes a position detection unit, a gripper 32, a third drive cylinder 33, a fourth drive cylinder 34, a fifth drive cylinder 35, and a collection component 37. The position detection unit detects whether the screws of the circuit breaker to be manufactured are in an ideal predetermined state. The gripper 32 is used to grasp the circuit breaker to be manufactured if it is not in an ideal state. The third drive cylinder 33, the fourth drive cylinder 34, and the fifth drive cylinder 35 are respectively connected to predetermined positions on the connecting base 201 and can drive the gripper 32 in three different directions along the connecting base 201 to achieve predetermined grasping actions. These three different directions are, for example, up / down, left / right, and forward / backward, to achieve precise motion control. To achieve a more efficient storage effect, the collection component 37 is adjacent to one side of the connecting base 201 and is located below the gripper 32.
[0042] According to an optional embodiment of the automatic screw-removing mechanism for a circuit breaker of the present invention, the first drive assembly 21 further includes a first drive cylinder 211 and a first drive rod 212. The first drive rod 212 is connected to the first drive cylinder 211; under the driving action of the first drive cylinder 211, the first drive rod 212 can extend or retract to realize the screw-removing action of the upper screw of the circuit breaker. Furthermore, the first drive assembly 21 also includes a left and right auxiliary cylinder 215 for driving the first drive rod 212 to achieve displacement in the left and right directions.
[0043] Optionally, the second drive assembly 22 further includes a second drive cylinder 221 and a second drive rod 222, with the second drive rod 222 connected to the second drive cylinder 221. Under the driving action of the second drive cylinder 221, the second drive rod 222 can extend or retract to achieve the unscrewing action of the lower screw of the circuit breaker. More specifically, the first drive rod 212 is also connected to and positioned with an upper screwdriver, and the second drive rod 222 is also connected to and positioned with a lower screwdriver.
[0044] According to an optional embodiment of the automatic screw-removing mechanism for circuit breakers of this utility model, the positioning drive assembly includes a positioning cylinder 131 and a positioning element 132. The positioning element 132, driven by the positioning cylinder 131, clamps and positions the circuit breaker.
[0045] According to an optional embodiment of the automatic screw-removing mechanism for a circuit breaker of this utility model, the third drive cylinder 33 is capable of moving left and right relative to the connecting base 201. The fourth drive cylinder 34 is capable of moving forward and backward relative to the connecting base 201. The fifth drive cylinder 35 is capable of moving up and down relative to the connecting base 201.
[0046] Preferably, the collecting component 35 is a long strip-shaped receiving slide, which is inclined at a certain angle relative to the connecting base 201 to realize the automatic sliding and recycling of unqualified circuit breakers.
[0047] Preferably, the first drive cylinder 211 and the second drive cylinder 221 are arranged parallel to each other in the mounting gap of the connecting plate, and the third drive cylinder 331 is arranged parallel to the first drive cylinder 211 and the second drive cylinder 221. Furthermore, the fourth drive cylinder 341 is arranged perpendicular to the third drive cylinder 331.
[0048] According to a preferred embodiment of the automatic screw removal mechanism for circuit breakers of this utility model, the positioning drive assembly further includes a limiting cylinder 133, which cooperates with the positioning cylinder 131 to achieve precise positioning of the circuit breaker.
[0049] To facilitate understanding of the technical solution of this application, the following content will briefly describe the working principle of the automatic screw removal mechanism for circuit breakers.
[0050] First, the circuit breaker to be manufactured is transported to its position via a pallet and then lifted and positioned. At this time, the positioning cylinder 131 extends, and simultaneously the first drive cylinder 211 and the second drive cylinder 221 extend. The first drive rod 212 and the second drive rod 222 initiate the unscrewing action. After the unscrewing is completed, the first drive rod 212 and the second drive rod 222 stop moving, the first drive cylinder 211 and the second drive cylinder 221 retract, the limit cylinder 133 extends, the left and right auxiliary cylinders 215 extend, the first drive cylinder 211 extends, and the first drive rod 212 initiates the unscrewing action of the other screw. After the unscrewing is completed, the first drive rod 212 stops moving, and the relevant cylinders return to their original positions.
[0051] During the screw removal process, the position detection unit automatically detects whether the screw is stuck and whether it can be removed to the correct position. If it is not stuck and can be removed to the correct position, it is a qualified circuit breaker. If it is stuck or cannot be removed to the correct position, it is a defective circuit breaker. When a defective circuit breaker is found, the third drive cylinder 33 extends, the fourth drive cylinder 34 extends, the pneumatic gripper 32 clamps the circuit breaker product to be manufactured, the fifth drive cylinder 35 extends, the fourth drive cylinder 34 retracts, the fifth drive cylinder 35 retracts, the pneumatic gripper 32 opens, and the defective circuit breaker to be manufactured automatically falls into the slide 35 to achieve automatic recycling of subsequent defective products.
[0052] The automatic screw removal mechanism for circuit breakers according to this utility model is particularly suitable for the production of 1+N PT series miniature circuit breakers, saving manpower, effectively improving production efficiency, and ensuring the stability and reliability of the production process of 1+N PT series circuit breakers.
[0053] It should be noted that relational terms such as "first" and "second" in this document are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0054] Finally, it should be noted that the above are merely preferred embodiments of this application, used only to illustrate the technical solution of this application, and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.
Claims
1. An automatic screw back mechanism (100) for a circuit breaker, characterized in that, include A clamping device (10) for clamping and positioning the circuit breaker to be manufactured, comprising: A clamp base (101) on which a plurality of support plates (102) are disposed; and A positioning drive assembly is connected to the support plate (102) and is used to push the circuit breaker to a predetermined position; A screw removal device (20) comprising A connecting base (201) is provided with a plurality of pairs of connecting plates (202), and a predetermined installation gap is provided between each pair of connecting plates (202); A first drive assembly (21) is connected between a pair of connecting plates (202) of the connecting base (201) and is located above the connecting plates (202); and A second drive assembly (22) is connected between a pair of connecting plates (202) of the connecting base (201) and is located below the connecting plates (202); as well as A rejection device (30) comprising A position detection unit is used to detect whether the screws of the circuit breaker are in an ideal predetermined state; A pneumatic gripper (32) is used to grasp the circuit breaker if it is not in good condition; A third drive cylinder (33), a fourth drive cylinder (34) and a fifth drive cylinder (35) are respectively connected to predetermined positions of the connecting base (201) and can drive the gripper (32) in three different directions of the connecting base (201) to achieve a predetermined gripping action. and A collection element (37) is disposed adjacent to one side of the connecting base (201) and located below the pneumatic gripper (32).
2. The automatic screw-removing mechanism for a circuit breaker according to claim 1, characterized in that, The first drive assembly (21) further includes: a first drive cylinder (211); and a first drive rod (212) connected to the first drive cylinder (211); under the driving action of the first drive cylinder (211), the first drive rod (212) can cooperate to extend or retract to realize the screw removal action of the corresponding screw on the circuit breaker.
3. The automatic screw back mechanism for a circuit breaker of claim 2, wherein, The first drive assembly (21) also includes a left and right auxiliary cylinder (215) for driving the first drive rod (212) to achieve displacement in the left and right directions.
4. The automatic screw back mechanism for a circuit breaker of claim 2, wherein, The second drive assembly (22) further includes: a second drive cylinder (221); and a second drive rod (222) connected to the second drive cylinder (221); under the driving action of the second drive cylinder (221), the second drive rod (222) can cooperate to extend or retract to realize the screw removal action of the corresponding screw of the circuit breaker.
5. The automatic screw back mechanism for a circuit breaker of claim 2, wherein, The positioning drive assembly includes a positioning cylinder (131) and a positioning element (132). Under the driving action of the positioning cylinder (131), the positioning element (132) clamps and positions the circuit breaker.
6. The automatic screw back mechanism for a circuit breaker of claim 2, wherein, The third drive cylinder (33) can move in the left and right directions relative to the connecting base (201), the fourth drive cylinder (34) can move in the front and rear directions relative to the connecting base (201), and the fifth drive cylinder (35) can move in the up and down directions relative to the connecting base (201).
7. The automatic screw back mechanism for a circuit breaker of claim 5, wherein, The collection component (37) is a long strip-shaped receiving slide, which is inclined at a certain angle relative to the connecting base (201) to realize the automatic sliding and recycling of unqualified circuit breakers.
8. The automatic screw back mechanism for a circuit breaker of claim 4, wherein, The first drive cylinder (211) and the second drive cylinder (221) are arranged parallel to each other in the mounting gap of the connecting plate, and the third drive cylinder (33) is arranged parallel to the first drive cylinder (211) and the second drive cylinder (221).
9. The automatic screw back mechanism for a circuit breaker of claim 5, wherein, The fourth drive cylinder (34) is arranged perpendicularly to the third drive cylinder (33).
10. The automatic screw back mechanism for a circuit breaker of claim 5, wherein, The positioning drive assembly also includes a limit cylinder (133), which works in conjunction with the positioning cylinder (131) to achieve precise positioning of the circuit breaker.