A tuning rod and dual gold tuning device

Abstract

The application discloses a regulating rod and a double-gold adjusting device, wherein the end of the regulating rod is provided with a driving groove for placing a part of a double-gold assembly, and the regulating rod is twisted when rotating along a first axis to twist the double-gold assembly in a carrier.

Description

Technical Field

[0001] This application relates to the field of mechanical automation, and specifically to an adjustment device for a bimetallic strip. Background Technology

[0002] In miniature circuit breakers, the bimetallic strip is often adjusted at a workstation on the production line after the entire unit is assembled. Specific adjustment devices, such as the bimetallic adjustment device for a circuit breaker disclosed in CN114899050A, utilize an adjusting motor to drive an adjusting rod (the head of which is essentially a flathead or Phillips head screwdriver) into the bimetallic adjusting screw of the miniature circuit breaker, and then turning the screw to make adjustment.

[0003] While this adjustment method is convenient, it is a final adjustment of the circuit breaker, that is, an adjustment made after the circuit breaker has been fully assembled.

[0004] However, in actual production, there may be some errors after the bimetallic strip is formed. At this time, it is not installed in the circuit breaker body, but in the carrier. There is no bimetallic adjusting screw at this time. Therefore, the existing adjusting rod structure is not suitable for adjusting the bimetallic strip during the production process. Summary of the Invention

[0005] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and to provide an adjusting rod and a bimetallic adjusting device.

[0006] This application provides: a dual-metal adjustment device, which includes an electric device and an adjustment rod, the adjustment rod being rotatably arranged about a first axis; the electric device is connected to the adjustment rod and is used to drive the adjustment rod to rotate; wherein, the end of the adjustment rod has a drive groove for placing a part of the dual-metal assembly; when the electric device drives the adjustment rod to rotate, the drive groove rotates about the first axis to twist the dual-metal assembly in the carrier.

[0007] In some embodiments of this application, the end of the adjusting rod is a fork-shaped structure, and a driving groove is formed in the middle of the fork-shaped structure. The driving groove has a depth dimension larger than that of the bimetallic component, and the depth direction is parallel to the first axis direction.

[0008] In some embodiments of this application, the electric device includes a motor assembly and a transmission assembly. The rotation center of the output shaft of the motor assembly is a second axis, and the first axis does not coincide with the second axis. The output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly. The transmission assembly is a belt drive assembly, a gear drive assembly, or a chain drive assembly. In some embodiments of this application, the electric device includes a motor assembly and a transmission assembly. The rotation center of the output shaft of the motor assembly is a second axis, and the first axis coincides with the second axis. The output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly, which is a gear transmission assembly or a coupling.

[0009] In some embodiments of this application, the electric device includes a motor assembly and a transmission assembly. The transmission assembly includes a first pulley, a second pulley, and a transmission belt. The first pulley is sleeved on the output shaft of the motor assembly to form a transmission connection, and the second pulley is sleeved on an adjusting rod to form a transmission connection. The transmission belt connects the first pulley and the second pulley so that a transmission is formed between the two pulleys.

[0010] In some embodiments of this application, a first bracket is also included, which has a through hole and a bearing is disposed in the through hole. An adjusting rod passes through the through hole and the bearing, and the end with the drive groove is exposed outside the through hole.

[0011] In some embodiments of this application, a first bracket, a main bracket, and a linear motion power source are also included. The motor assembly is directly or indirectly fixed to the first bracket. The first bracket is slidably connected to the main bracket. The linear motion power source is connected to the first bracket to drive the first bracket to slide. The sliding direction is parallel to the first axis. After the first bracket slides in the first direction, the adjusting rod approaches the double metal assembly. After the first bracket slides in the opposite direction of the first direction, the adjusting rod moves away from the double metal assembly.

[0012] In some embodiments of this application, the linear motion power source is a combination of a hydraulic cylinder assembly, a pneumatic cylinder assembly, or a motor and a lead screw and slider mechanism.

[0013] In some embodiments of this application, the bimetallic assembly includes an arc guide plate, a bimetallic strip, a conductive strip, a terminal plate, and a screw frame. The conductive strip is welded to both sides of the arc guide plate. The conductive strip and the terminal plate are integrally formed or welded together. The terminal plate passes through the screw frame. The width of the welded joint of the conductive strip, the arc guide plate, and the bimetallic strip is less than or equal to the width of the drive groove. The adjusting rod rotates the welded joint of the conductive strip, the arc guide plate, and the bimetallic strip through the drive groove to adjust the bimetallic strip.

[0014] In some embodiments of this application, a first clamping mechanism is also included, which is used to clamp the screw frame of the bimetallic assembly.

[0015] In some embodiments of this application, a second clamping mechanism is also included, which is used to clamp the running track and / or carrier of the bimetallic component.

[0016] An adjusting rod, wherein the end of the adjusting rod has a drive groove for placing a portion of a bimetallic component, and the adjusting rod rotates about a first axis to twist the bimetallic component in a carrier.

[0017] The advantages of this application compared to the prior art are: Compared to traditional adjusting rods (which are essentially electric screwdrivers, only able to drive the adjusting screw to adjust the bimetallic component, and are only suitable for finished circuit breakers, not for bimetallic components in the production process), this new structure has a drive groove at the end of the adjusting rod. The bimetallic component is held in place by the drive groove, and then the adjusting rod is rotated (around the first axis) to twist the bimetallic component, thus achieving the purpose of adjusting the bimetallic component. This structure is very simple and suitable for bimetallic components in the production process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the vehicle and the dual-metal assembly in an embodiment of this application is shown; Figure 2 An axial view of the adjusting rod in an embodiment of this application is shown; Figure 3 A schematic diagram of the adjusting rod and bimetallic assembly according to an embodiment of this application is shown; Figure 4 A schematic diagram of the adjusting rod adjusting bimetallic assembly according to an embodiment of this application is shown; Figure 5 A schematic diagram of the dual-gold adjustment device according to an embodiment of this application is shown; Figure 6 This paper shows a schematic diagram of the main support and clamping device of the dual-gold adjustment device according to an embodiment of this application; Figure 7 A schematic diagram of the main support and linear motion power source in the dual-metal adjustment device according to an embodiment of this application is shown; Figure 8 A schematic diagram of the electric device and adjusting rod in the dual-metal adjusting device according to an embodiment of this application is shown; Figure 9 A cross-sectional view of the adjusting rod and part of the first bracket in the dual-gold adjusting device of this application is shown. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] 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 indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "electrical connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed electrical connection, a detachable electrical connection, or an integral connection; they can refer to a mechanical-electrical connection or an electro-electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "below" of the second feature... "Below" can mean the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal height than the second feature. Example

[0025] like Figures 1-9 As shown, an embodiment of this application is an adjustment rod 100, which is used to adjust the bimetallic component 200 in the production process.

[0026] The bimetallic component 200 structure in the production process includes an arc guide plate 210, a bimetallic strip 220, a conductive strip 230, a terminal plate 240, and a screw frame 250.

[0027] The conductive sheet 230 and the arc guide plate 210 are respectively welded to both sides of the bimetallic sheet 220. One end of the conductive sheet 230 is welded to the terminal plate 240 (or the two can be integrally formed). The terminal plate 240 is set through the screw frame 250.

[0028] The bimetallic component 200 in this production process is used to be placed in the carrier 260 to enable the switching between different workstations.

[0029] The adjusting rod 100 has a drive groove 110 at its end, which is used to place a part of the bimetallic assembly 200. Specifically, it is used to place the weld joint of the conductive sheet 230, the arc guide plate 210, and the bimetallic sheet 220. By rotating the adjusting rod 100, the weld joint of the three components can be twisted, thereby achieving the purpose of adjusting the bimetallic assembly 200. Here, the adjusting rod 100 rotates about a first axis O1, which can also be understood as the axis of the adjusting rod 100 itself, that is, the line passing through the center of each of its radial sections.

[0030] Here, the end of the adjusting rod 100 is a fork-shaped structure 120, and a drive groove 110 is formed in the middle of the fork-shaped structure 120. The drive groove 110 has a depth dimension D, which is larger than the welded joint of the three parts. The depth dimension D is parallel to the first axis O1.

[0031] Here, the drive groove 110 has a width dimension d, which is greater than the width dimension d at the welded joint of the three components. Alternatively, it can be equal to the width dimension d at the welded joint. Here, the width dimension d is perpendicular to the first axis O1.

[0032] Compared to existing adjustment rods (which are essentially screwdrivers), this type of adjustment rod 100 can directly act on the bimetallic component 200 during the production process (the bimetallic component 200 during production can be understood as not yet installed in the circuit breaker housing, meaning the circuit breaker is not yet a finished product), to achieve adjustment of the bimetallic component 200 during production. For example, if the bimetallic angle does not meet the requirements, the drive groove 110 of the adjustment rod 100 acts on the weld joint of the three components to twist it, causing the weld joint to deflect by an angle α (the specific angle depends on actual needs), so that the bimetallic strip 220 reaches the appropriate angle.

[0033] This adjusting rod 100 can be used in manual bimetallic component 200 adjusting equipment, as well as in fully automatic or semi-automatic circuit breaker production lines.

[0034] Taking a fully automatic or semi-automatic circuit breaker production line as an example, one of its processes is the double metal adjustment process, and the equipment used in this process is the double metal adjustment equipment.

[0035] This dual-metal adjustment device includes an electric device 300 and an adjustment rod 100. The electric device 300 is connected to the adjustment rod 100, so that the adjustment rod 100 rotates under the action of the electric device 300, thereby twisting the dual-metal component 200 in the carrier 260.

[0036] With this structure, the adjustment of the dual-metal component 200 can be achieved by using the electric device 300, making the adjustment more reliable and precise.

[0037] There are many design forms for the electric actuator 300. Taking one structure as an example, it is accomplished by using a motor assembly 310 and a transmission assembly.

[0038] Depending on whether the output shaft of the motor assembly 310 and the adjusting rod 100 are coaxial, the transmission assembly can be divided into several types.

[0039] Taking the output shaft of motor assembly 310 and the adjusting rod 100 as having different axes as an example, the rotation center of the output shaft of motor assembly 310 is the second axis O2, the first axis O1 and the second axis O2 do not coincide, and the transmission assembly is the belt transmission assembly 320.

[0040] The belt drive assembly 320 includes a first pulley 322, a second pulley 324, and a drive belt 326. The first pulley 322 is fitted onto the output shaft of the motor assembly 310 to form a transmission connection. Here, a keyway fit can be used to achieve the transmission connection between the output shaft of the motor assembly 310 and the first pulley 322. Of course, in addition to this, flange connection, sleeve connection, compression fitting connection, etc. can also be used to form a transmission connection, as long as the two can move synchronously.

[0041] The second pulley 324 is fitted onto the adjusting rod 100 to form a transmission connection. Similarly, a keyway is used to achieve the transmission connection between the second pulley 324 and the adjusting rod 100. Of course, in addition to this, flange connection, sleeve connection, ferrule connection, etc. can also be used to form a transmission connection, as long as the two can move synchronously.

[0042] The transmission belt 326 is wound around the first pulley 322 and the second pulley 324, so that the first pulley 322 can drive the second pulley 324 by means of the transmission belt 326.

[0043] This type of belt drive structure is relatively mature and has the advantages of simple structure, stability and high cost performance when applied to bimetallic adjustment.

[0044] Of course, with the output shaft and adjusting rod 100 set on different axes, the transmission component can also be set as a chain drive component (sprocket, transmission chain, etc.) or a gear drive component. As long as it can be ensured that transmission can be achieved even when the two are on different axes, it is acceptable.

[0045] Of course, as a coaxial arrangement (that is, the first axis O1 and the second axis O2 coincide), the electric device 300 also includes a motor assembly 310 and a transmission assembly. However, the transmission assembly can be a coupling or a gear transmission assembly.

[0046] Regardless of the method, the setting can be adjusted according to the actual space occupied, as long as it can ensure that the adjusting rod 100 can rotate under the drive of the motor assembly 310.

[0047] Here, there are many options for the motor assembly 310. For example, it can be a motor with a built-in reduction gear mechanism, or a combination of a motor and an external reduction gear mechanism. In this way, the transmission assembly is driven after reduction, so as to rotate the adjusting rod 100. Of course, if the load requirements are met, a small AC standard motor, a brushless motor, etc. can also be used to directly drive the transmission assembly to rotate the adjusting rod 100.

[0048] To ensure the stability of the movement of the adjusting rod 100, the dual-gold adjusting device also includes a first support 330. The first support 330 has through holes 340, and two bearings 350 are installed within the through holes 340. The adjusting rod 100 passes through the through holes 340 and the bearings 350, such that both ends of the adjusting rod 100 are outside the through holes 340, while the middle part is inside the through holes 340 and engages with the bearings 350.

[0049] For this dual-metal adjustment device, its adjustment rod 100 can be controlled by a lifting device to move closer to and further away from the dual-metal component 200, so as to achieve semi-automatic or fully automatic detection.

[0050] Here, the dual-gold adjustment device also includes a main support 360 and a linear motion power source 370. The first support 330 and the main support 360 are slidably connected. This sliding connection utilizes a guide rail 365 and a sliding groove 335. The guide rail 365 is provided on the main support 360, and the sliding groove 335 is provided on the first support 330, forming a sliding fit. The motor assembly 310 is fixed to the first support 330 using a direct fixing method; however, indirect fixing methods can also be used.

[0051] The linear motion power source 370 employs a cylinder assembly (here, the cylinder assembly can be understood as a single cylinder, or a cylinder and a slider fixed to the cylinder push rod). The output part of the cylinder assembly is connected to the first bracket 330, allowing the first bracket 330 to slide back and forth along the guide rail 365. The direction of sliding is parallel to the first axis O1. When the output part of the cylinder assembly extends, the first bracket 330 slides in the first direction, causing the adjusting rod 100 to approach the dual-metal component 200 (this is the action before adjustment), until the adjusting rod 100 has completed the adjustment of the dual-metal component 200. When the output part of the cylinder assembly retracts, the first bracket 330 slides in the second direction, causing the adjusting rod 100 to move away from the dual-metal component 200.

[0052] Of course, there are many ways to choose this linear motion power source 370. In addition to the cylinder assembly, a hydraulic cylinder assembly or a combination of a motor and a lead screw and slider mechanism 310 can also be used (the motor drives the lead screw to rotate, which is converted into a slider to achieve linear motion).

[0053] Here, the first bracket 330 includes a slider part 331, a mounting plate 332, an adjusting rod mating part 333, a motor assembly mating part 334, and a motor assembly mounting plate 336.

[0054] The slide groove 335 is formed on the slider part 331, and the slider part 331 is fixed to the mounting plate 332 by bolts.

[0055] The adjusting rod mating part 333 and the motor assembly mating part 334 are both fixed to the side of the mounting plate 332 away from the slider part 331, and are fastened with bolts. Here, the adjusting rod mating part 333 and the motor assembly mating part 334 are spaced apart.

[0056] The motor assembly 310 is fixed to the motor assembly mounting plate 336 by bolts. The motor assembly mounting plate 336 is fixed to the motor assembly mating part 334 by bolts.

[0057] In this embodiment, although the first bracket 330 is composed of multiple separately formed parts that are fastened by bolts, some of these parts may be integrally formed or fastened by other methods.

[0058] To ensure more stable adjustment, the dual-gold adjustment equipment also includes a clamping device.

[0059] The clamping device here includes a first clamping mechanism, which is a first clamping block 380. The first clamping block 380 is located above the screw frame 250 and can clamp the screw frame 250. Here, the first clamping block 380 is slidably configured; it does not always clamp the screw frame 250. It can clamp or release the screw frame 250 under its own or an external driving source. The driving source can be a cylinder assembly, a hydraulic cylinder assembly, or a combination 310 of a motor and a lead screw and slider mechanism (a combination of a stepper motor and a slider, capable of linear motion), etc.

[0060] The clamping device here also includes a second clamping mechanism, which is a second clamping block 390. The second clamping block 390 is located above the guide plate 210 and part of the carrier 260 wall, and can clamp the guide plate 210 and / or the carrier 260. Here, the second clamping block 390 is slidably configured; it does not always clamp the guide plate 210 and / or the carrier 260. It can clamp the guide plate 210 and / or the carrier 260 or release the clamping of the guide plate 210 and / or the carrier 260 under its own or an external driving source. The driving source here can be a cylinder assembly, a hydraulic cylinder assembly, or a combination 310 of a motor and a lead screw and slider mechanism (a combination of a stepper motor and a slider, capable of linear motion), etc.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A dual-metal adjustment device, comprising an electric actuator and an adjustment rod, the adjustment rod being rotatably arranged about a first axis; the electric actuator is connected to the adjustment rod and is used to drive the adjustment rod to rotate; characterized in that: The end of the adjusting rod has a drive groove for placing a part of the bimetallic component; when the electric device drives the adjusting rod to rotate, the drive groove rotates around the first axis to twist the bimetallic component in the carrier.

2. The dual-gold adjustment device according to claim 1, characterized in that: The end of the adjusting rod has a fork-shaped structure, and a drive groove is formed in the middle of the fork-shaped structure. The drive groove has a depth dimension larger than that of the bimetallic component, and the depth direction is parallel to the first axis direction.

3. The dual-gold adjustment device according to claim 1, characterized in that: The electric device includes a motor assembly and a transmission assembly. The rotation center of the output shaft of the motor assembly is a second axis, and the first axis does not coincide with the second axis. The output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly. The transmission assembly is a belt drive assembly, a gear drive assembly, or a chain drive assembly. Alternatively, the electric device includes a motor assembly and a transmission assembly. The rotation center of the output shaft of the motor assembly is a second axis, and the first axis coincides with the second axis. The output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly, which is a gear transmission assembly or a coupling.

4. The dual-gold adjustment device according to claim 1, characterized in that: The electric device includes a motor assembly and a transmission assembly. The transmission assembly includes a first pulley, a second pulley, and a transmission belt. The first pulley is sleeved on the output shaft of the motor assembly to form a transmission connection, and the second pulley is sleeved on the adjusting rod to form a transmission connection. The transmission belt connects the first pulley and the second pulley so that a transmission is formed between the two pulleys.

5. A dual-gold adjustment device according to claim 2 or 3, characterized in that: It also includes a first bracket with a through hole, a bearing is installed in the through hole, an adjusting rod passes through the through hole and the bearing, and the end with the drive groove is exposed outside the through hole.

6. A dual-gold adjustment device according to claim 2 or 3, characterized in that: It also includes a first bracket, a main bracket, and a linear motion power source. The motor assembly is directly or indirectly fixed to the first bracket. The first bracket is slidably connected to the main bracket. The linear motion power source is connected to the first bracket to drive the first bracket to slide. The sliding direction is parallel to the first axis. After the first bracket slides in the first direction, the adjusting rod approaches the double metal assembly. After the first bracket slides in the opposite direction of the first direction, the adjusting rod moves away from the double metal assembly.

7. The dual-gold adjustment device according to claim 6, characterized in that: The linear motion power source is a combination of a hydraulic cylinder assembly, a pneumatic cylinder assembly, or a motor and a lead screw and slider mechanism.

8. The dual-gold adjustment device according to claim 1, characterized in that: The bimetallic assembly includes an arc guide plate, a bimetallic strip, a conductive strip, a terminal plate, and a screw frame. The conductive strip is welded to both sides of the bimetallic strip, and the conductive strip and the terminal plate are integrally formed or welded together. The terminal plate passes through the screw frame. The width of the welded joint of the conductive strip, the arc guide plate, and the bimetallic strip is less than or equal to the width of the drive groove. The adjusting rod rotates the welded joint of the conductive strip, the arc guide plate, and the bimetallic strip through the drive groove to adjust the bimetallic strip.

9. A dual-gold adjustment device according to claim 7, characterized in that: It also includes a first clamping mechanism for clamping the screw frame of the bimetallic assembly; And / or, it also includes a second clamping mechanism for clamping the runway and / or carrier of the bimetallic assembly.

10. An adjusting rod, characterized in that: The end of the adjusting rod has a drive groove for placing a part of the bimetallic component. When the adjusting rod rotates about a first axis, it twists the bimetallic component in the carrier.

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