Automatic bimetallic strip adjusting equipment for miniature circuit breaker

Abstract

The invention discloses a miniature circuit breaker automatic adjusting bimetallic strip device comprising a material supply mechanism, a carrier, a clamping feeding mechanism, a pressing mechanism, an adjusting mechanism, a ccd visual detection module, and a main control system used for controlling a detection adjusting device. The main control system receives the image information from the ccd visual detection module and judges whether the position of the bimetallic strip in the image meets a preset standard or not; if the bimetallic strip does not meet the preset standard, a pressing mechanism is controlled to press the bimetallic strip assembly, an electric device drives an adjusting rod to rotate to achieve torsion adjustment of the bimetallic strip, and the position of the adjusted bimetallic strip is obtained through a ccd visual detection module; the device has the effect of achieving automatic adjustment of the double-metal assembly.

Description

Technical Field

[0001] The present application relates to the field of mechanical automation, and in particular to a small circuit breaker automatic adjustment bimetallic strip device. Background Art

[0002] At present, the dual-metal adjustment of miniature circuit breakers is performed on the miniature circuit breakers after assembly (that is, using a mechanism similar to an electric screwdriver to penetrate into the miniature circuit breaker). However, it is the final step of the adjustment of the circuit breaker, and the dual-metal components cannot be adjusted during the production process.

[0003] If the dual-metal components can be adjusted during the production process, it will undoubtedly be possible to discover some potential unqualified products more quickly and improve the product qualification rate.

[0004] Therefore, how to adjust the dual-metal components during the production process is a question worth considering. Summary of the Invention

[0005] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide an automatic adjustment bimetallic strip device for a small circuit breaker.

[0006] The present application provides: a miniature circuit breaker automatic adjustment bimetallic strip device, which includes: A feeding mechanism, used to guide the carrier to be processed in the main feeding channel into the clamping feeding mechanism; The carrier is used to carry the bimetallic component, which includes an arc guide plate, a bimetallic sheet, and a conductive sheet, which are welded and fixed; The detection and adjustment device includes a working plane for placing the carrier to be processed, a pressing mechanism, an adjustment mechanism, and a CCD visual detection module; A clamping and feeding mechanism, used to carry the carrier into and out of the working area of ​​the detection and adjustment device; The clamping mechanism is controlled by the main control system and is used to clamp the bimetallic components in the carrier; The adjusting mechanism includes an electric device and an adjusting rod, wherein the adjusting rod is arranged to rotate about the first axis as the rotation center, the end of the adjusting rod has a driving groove, a portion of the bimetallic strip is located in the driving groove, and the adjusting rod rotates under the drive of the electric device; CCD visual detection module, used to capture image information in the vehicle; The main control system is used to control the detection and adjustment device; the main control system receives image information from the CCD visual detection module and determines whether the position of the bimetallic strip in the image meets the preset standard; if it does not meet the preset standard, the main control system controls the clamping mechanism to clamp the bimetallic component, drives the adjustment rod to rotate through the electric device to achieve torsion adjustment of the bimetallic strip, and obtains the position of the bimetallic strip after adjustment through the CCD visual detection module.

[0007] In some embodiments of the present application, the detection and adjustment device includes two groups, namely a first detection and adjustment device and a second detection and adjustment device; the clamping and feeding mechanism is used to move the carrier processed by the first detection and adjustment device into the second detection and adjustment device; the main control system uses the second detection and adjustment device to re-detect and adjust the bimetallic strip processed by the first detection and adjustment device.

[0008] In some embodiments of the present application, a main feeding channel, an unqualified channel and a unloading mechanism are also included. Under the control of the main control system, the unloading mechanism moves the carrier that has been finally adjusted by the detection and adjustment device into the main feeding channel or the unqualified channel; wherein, the carrier with qualified bimetallic strips is moved into the main feeding channel, and the carrier with unqualified bimetallic strips is moved into the unqualified channel.

[0009] In some embodiments of the present application, the unloading mechanism includes a translation device, a second lifting mechanism and pneumatic clamping fingers; the pneumatic clamping fingers are used to clamp the carrier or release the clamping of the carrier; the pneumatic clamping fingers are fixed on the second lifting mechanism, and the second lifting mechanism is used to realize the movement of the carrier in two directions in the first dimension; the second lifting mechanism is fixed on the translation device, and the translation device is used to realize the movement of the carrier in the second dimension; in the second dimension, the main feeding channel and the unqualified channel are arranged on both sides of the working area of ​​the detection and adjustment device.

[0010] In some embodiments of the present application, the clamping and feeding mechanism includes a third drive structure, a fourth drive structure and a carrier mounting frame, and the carrier is installed in the carrier mounting frame; the feeding mechanism introduces the carrier to be processed into the carrier mounting frame; the third drive structure is connected to the carrier mounting frame to drive the carrier mounting frame to move in two directions in the first dimension; the fourth drive structure is connected to the third drive structure to drive the carrier mounting frame and the third drive structure to move in two directions in the third dimension; the first dimension and the third dimension are in a vertical relationship, and the fourth drive structure is combined with the third drive structure to enable the carrier to move in and out of the working area of ​​the detection and adjustment device.

[0011] In some embodiments of the present application, an import mechanism is also included; the carrier mounting frame accommodates at least two carriers in the third dimension, and the import mechanism is used to push the carrier that has just been fed into the carrier mounting frame by the feeding mechanism to a predetermined position on the carrier mounting frame, and the movement direction of the import mechanism is perpendicular to the movement direction of the feeding mechanism.

[0012] In some embodiments of the present application, the welding point of the arc guide plate, the bimetallic strip, and the conductive strip is used to be placed in the driving groove; the end of the adjusting rod is a fork-shaped structure, and the middle part of the fork-shaped structure forms a driving groove. The depth direction of the driving groove is greater than the size of the bimetallic component, and the depth direction is parallel to the direction of the first axis.

[0013] In some embodiments of the present application, the electric device includes a motor assembly and a transmission assembly, the rotation center of the output shaft of the motor assembly is the second axis, the first axis and the second axis do not coincide, the output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly, and the transmission assembly is a belt transmission assembly, a gear transmission assembly, or a chain transmission assembly.

[0014] In some embodiments of the present application, the adjustment mechanism includes a first bracket having a through hole, a bearing is provided in the through hole, and the adjustment rod passes through the through hole and the bearing.

[0015] In some embodiments of the present application, the adjustment mechanism also includes a first lifting mechanism, the first lifting mechanism includes a first bracket and a linear motion power source, the adjustment rod is arranged on the first bracket, and the linear motion power source is used to drive the first bracket to reciprocate in the first dimension to enable the bimetallic strip to enter or leave the drive slot; the first dimension is parallel to the first axis.

[0016] In some embodiments of the present application, the clamping mechanism includes a first clamping block and a first driving structure. The first clamping block is arranged to move relative to the working plane and the movement direction is inclined to the working plane. The first driving structure drives the first clamping block to move toward the working plane to clamp the arc guide plate on at least two surfaces in different directions to generate a clamping force perpendicular to the working plane and a clamping force parallel to the working plane.

[0017] In some embodiments of the present application, the arc guide plate includes a bending portion, the bending portion includes a first plate portion and a second plate portion, the first plate portion and the second plate portion are arranged at an angle, and a clamping portion extends on one side of the second plate portion; the first pressure block includes a first top pressure surface and a second top pressure surface; the direction of the clamping force generated by the first top pressure surface pressing on the first plate portion is the first dimension, and the direction of the clamping force generated by the second top pressure surface pressing on the clamping portion is a composite direction of the second dimension and the third dimension, and the first dimension, the second dimension and the third dimension are perpendicular to each other.

[0018] In some embodiments of the present application, the first pressure block includes a first pressure foot and a second pressure foot, a first avoidance groove is formed between the first pressure foot and the second pressure foot, the first pressure foot has a first top pressure surface parallel to the working plane, and one surface of the second pressure foot in the first avoidance groove is the second top pressure surface, and the first top pressure surface and the second top pressure surface respectively press on the surfaces of the arc guide plate in two different directions.

[0019] In some embodiments of the present application, the first pressing block includes a first presser foot and a second presser foot, a first avoidance groove is formed between the first presser foot and the second presser foot, a second avoidance groove is provided on the second presser foot, and the first avoidance groove and the second avoidance groove are respectively arranged on both sides of the second presser foot.

[0020] In some embodiments of the present application, the clamping mechanism further includes a second pressing mechanism, which presses on both sides of the carrier in the second dimension to generate a carrier pressing force on the carrier parallel to the working plane.

[0021] Compared with the prior art, this application has the following advantages: The operation of the detection and adjustment device can be realized through the control of the main control system. When unqualified bimetallic components are found using CCD image recognition technology, the bimetallic components are compressed using the clamping mechanism, and then adjusted using the adjustment mechanism (the bimetallic components are twisted using the driving groove of the adjustment rod to complete the bimetallic adjustment), ensuring that the bimetallic strip meets the requirements and realizing the bimetallic adjustment function in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of an automatic adjustment bimetallic strip device for a miniature circuit breaker in an embodiment of the present application is shown; Figure 2 A schematic diagram of a carrier and a dual-metal component in an embodiment of the present application is shown; Figure 3 A partial schematic diagram of the detection and adjustment device in an embodiment of the present application is shown; Figure 4 A partial schematic diagram of the pressing mechanism in an embodiment of the present application is shown; Figure 5 A schematic diagram of a first pressing block in an embodiment of the present application is shown; Figure 6 A schematic diagram of the first pressing block and the first driving structure in an embodiment of the present application is shown; Figure 7 A schematic diagram of the second pressing block and the second driving structure in an embodiment of the present application is shown; Figure 8 A schematic diagram of the first pressing block and the working plane in an embodiment of the present application is shown; Figure 9 A schematic diagram and a partially enlarged diagram of the clamping mechanism clamping the arc guide plate in an embodiment of the present application are shown; Figure 10 A schematic diagram showing the forces acting on the first pressing block and the arc guide plate in an embodiment of the present application is shown; Figure 11The figure shows the force diagram of the first pressing block and the arc guide plate in the embodiment of the present application; Figure 12 A schematic diagram of an adjustment mechanism in an embodiment of the present application is shown; Figure 13 A schematic diagram of the adjustment mechanism removing the main support in an embodiment of the present application is shown; Figure 14 A schematic diagram of a main bracket in an embodiment of the present application is shown; Figure 15 A schematic diagram of a belt transmission structure in an adjustment mechanism in an embodiment of the present application is shown; Figure 16 A schematic diagram of an adjustment rod in an adjustment mechanism in an embodiment of the present application is shown; Figure 17 A schematic diagram of the adjusting rod and the double metal assembly in an embodiment of the present application is shown; Figure 18 A cross-sectional view of the adjustment rod and the first bracket in an embodiment of the present application is shown; Figure 19 A schematic diagram showing the adjustment of the double metal component by the adjustment rod in an embodiment of the present application is shown; Figure 20 A schematic diagram of a clamping and feeding mechanism in an embodiment of the present application is shown; Figure 21 A schematic diagram of an introduction mechanism in an embodiment of the present application is shown; Figure 22 A schematic diagram of the blanking mechanism in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present application. Examples of these embodiments are illustrated in the accompanying drawings, where identical or similar reference numerals throughout represent identical or similar elements or elements having identical or similar functions. The embodiments described below with reference to the accompanying drawings are illustrative and intended only to explain the present application and are not to be construed as limiting the present application.

[0025] In the description of the present application, it should be understood that 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", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present 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 operate in a specific orientation, and therefore should not be understood as limiting the present application.

[0026] 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 being referred to. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "electrically connected," and "fixed" should be interpreted broadly. For example, they may refer to fixed electrical connections, removable electrical connections, or integrated connections; they may refer to mechanical electrical connections or electrical electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0028] In this application, unless otherwise specified or limited, a first feature "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature "below", "below" or "below" a second feature may mean that the first feature is directly above or obliquely above the second feature. “Below” may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is smaller in level than the second feature. Example

[0029] like Figure 1-Figure 22 As shown, an embodiment of the present application is a device for automatically adjusting a bimetallic strip of a miniature circuit breaker, which is used to adjust a bimetallic strip 120 during the production process of a miniature circuit breaker. During this production process, the bimetallic strip 120 is carried by a carrier 300 in the form of a component and is transported to various processes along the production line along with the carrier 300.

[0030] The bimetallic assembly 100 includes an arc guide plate 110 , a bimetallic strip 120 , a conductive strip 130 , a terminal plate, and a screw frame.

[0031] The conductive sheet 130 and the arc guide plate 110 are welded to both sides of the bimetallic sheet 120 respectively. One end of the conductive sheet 130 is fixed to the terminal plate by welding (in addition, the two can also be integrally formed), and the terminal plate is set through the screw frame.

[0032] The arc guide plate 110 includes a bent portion formed by a first plate portion 110a1 and a second plate portion 110a2 arranged at an angle (typically acute). Extending in one direction from the second plate portion 110a2 is a snap-fit ​​portion 110a3 (this snap-fit ​​plate itself is used to snap into the circuit breaker housing). This extension direction is the first dimension S1. The portion of the arc guide plate 110 welded to the bimetallic strip 120 is adjacent to the second plate portion 110a2.

[0033] This dual metal assembly 100 itself is a well-known technology in the art and will not be described in detail here.

[0034] The automatic adjustment bimetallic strip device for a small circuit breaker includes a main control system, a workbench 200 , a main feeding channel 201 , a feeding mechanism 800 , a detection and adjustment device 45 , a clamping and feeding mechanism, and a carrier 300 .

[0035] The main control system, which can also be said to be a controller, is used to control the operation of the various devices, mechanisms and CCD visual detection module 450 below. Here, a servo control system is adopted. Since the functional structure of the servo control system is relatively mature, it will not be described in detail here.

[0036] The workbench 200 can also be understood as the main body of the production line. Each module and mechanism part is basically fixed to the workbench 200 directly or indirectly, thereby ensuring the stable connection of each module and mechanism.

[0037] On the workbench 200, the main feed channel 201 is used to transport carriers 300 with dual-metal components 100. It allows the carriers 300 to flow between different workstations. For example, the previous process was dual-metal spot welding, the current process is dual-metal adjustment, and the next process is assembly. The main feed channel 201 spans these workstations, transporting the carriers 300 to different processes so that the feeding mechanisms 800 of different processes can grab the carriers 300. Here, the main feed channel 201 uses a plate chain to transport the carriers 300. In addition, conveyor belts or other methods can also be used to transport the carriers 300.

[0038] The three dimensions of the three-dimensional space include a first dimension S1, a second dimension S2, and a third dimension S3, and the three dimensions are perpendicular to each other. The first dimension S1 is perpendicular to the working plane 210, and the second dimension S2 and the third dimension S3 are parallel to the working plane 210.

[0039] The main feeding channel 201 transports the carrier 300 in one direction of the third dimension S3.

[0040] The feeding mechanism 800 is used to push the carrier 300 to be processed in the main feeding channel 201 into the clamping feeding mechanism.

[0041] Here, the main feeding channel 201 has a feeding port 240 on one side in the second dimension S2. The feeding mechanism 800 is a pneumatic cylinder assembly. By extending the cylinder push rod, the carrier 300 is pushed through the feeding port 240 and into the clamping feeding mechanism. Of course, the feeding mechanism 800 here can also use a combination of a cylinder assembly or a motor and a screw slider mechanism.

[0042] The detection and adjustment device 45 includes a pressing mechanism 400, an adjustment mechanism 500, a CCD visual detection module 450 and a working plane 210 (that is, the part of the workbench 200 within the working range of the detection and adjustment device 45).

[0043] The pressing mechanism 400 includes a first pressing block 410 and a first driving structure 420 .

[0044] The first pressing block 410 is slidably arranged, and the sliding direction of the first pressing block 410 is inclined to the working plane 210 . The first driving structure 420 drives the first pressing block 410 to move toward the working plane 210 .

[0045] By moving the first driving structure 420 in two opposite directions, the first pressing block 410 can be moved toward the working plane 210 to press the arc guide plate 110, or the first pressing block 410 can be moved away from the working plane 210 to release the pressure on the arc guide plate 110.

[0046] For the first pressure block 410, it acts on the surface of the arc guide plate 110 in at least two different directions, so it can generate a pressing force perpendicular to the working plane 210 (first dimension S1) and a pressing force parallel to the working plane 210 (second dimension S2 and / or third dimension S3).

[0047] Compared to conventional designs that only generate a compressive force perpendicular to the working plane 210, the design of the clamping mechanism 400 provides a better clamping effect, allowing the bimetallic assembly 100 to be stably clamped to the carrier 300, facilitating subsequent bimetallic adjustment. Here, the first drive structure 420, driven by the main control system, enables the first clamping block 410 to compress the arc guide plate 110.

[0048] For the first pressure block 410, the reason why it can press on at least two surfaces of the arc guide plate 110 in different directions is that the first pressure block 410 has a first pressing surface 410a and a second pressing surface 410b. The first pressing surface 410a and the second pressing surface 410b are in a vertical relationship. The first pressing surface 410a generates a pressing force on the bending portion perpendicular to the direction of the working plane 210, and the second pressing surface 410b generates a pressing force on the bending portion parallel to the direction of the working plane 210.

[0049] The first pressing surface 410a presses against the first surface M1 of the first plate portion 110a1 (or the surface of the first plate portion 110a1 facing away from the working plane 210), generating a compressive force F1 in the first dimension S1. The second pressing surface 410b presses against the side surface M3 of the engaging portion 110a3, generating a compressive force in the combined direction of the second and third dimensions S2 and S3. Simply put, this combined compressive force F2 can be decomposed into a force in the second dimension S2 and a force in the third dimension S3.

[0050] Such a structure makes it easier to press the arc guide plate 110 .

[0051] Here, for the first pressing block 410, its ends form a first presser foot 410c and a second presser foot 410d. A first avoidance groove 410e is formed between the first presser foot 410c and the second presser foot 410d. The first pressing surface 410a is a surface of the first presser foot 410c parallel to the working plane 210 (it can also be said to be the lower surface of the first presser foot 410c, or the surface facing the working plane 210). The second pressing surface 410b is a surface of the second presser foot 410d within the first avoidance groove 410e. During pressing, the clamping portion 110a3 is located within the first avoidance groove 410e and is pressed by the second pressing surface 410b.

[0052] The design of the first avoidance groove 410e, the first presser foot 410c and the second presser foot 410d makes the overall structure very compact, which is conducive to completing the pressing work.

[0053] The first pressure block 410 has a second avoidance groove 410f. The first avoidance groove 410e and the second avoidance groove 410f are separated by the second pressure foot 410d, that is, they are located on both sides of the second pressure foot 410d. The design of the second avoidance groove 410f can be used to avoid other devices, making the entire device more compact.

[0054] The first drive structure 420 herein is a cylinder assembly, comprising a cylinder, a cylinder bracket, and a cylinder top block. The cylinder bracket is bolted to the workbench 200, the cylinder is bolted to the cylinder bracket, and the cylinder top block is bolted to the cylinder top rod. The first pressing block 410 is fixed to the cylinder top block. Alternatively, the first pressing block 410 and the cylinder top block may be integrally formed.

[0055] In this configuration, the first pressing block 410 and the first driving structure 420 move in the same direction and are both inclined relative to the working plane 210. The term "inclined" here refers to an angle Z between the two that is not 90°. In this application, the angle is preferably 27°, though other angles are also possible, with a preferred range of 10° to 80°.

[0056] Such an angle setting can make the overall space more compact and is conducive to generating clamping forces in two different directions, thereby ensuring that the dual metal component 100 is compressed.

[0057] The adjustment mechanism 500 includes an electric device 510 and an adjustment rod 520 .

[0058] The electric device 510 can be driven by the main control system to operate, thereby driving the adjustment rod 520 to rotate.

[0059] The adjusting rod 520 has a drive slot 520a at its end. This slot 520a is used to accommodate a portion of the bimetallic assembly 100. Specifically, it houses the welds between the conductive plate 130, the arc guide plate 110, and the bimetallic strip 120. Rotating the adjusting rod 520 causes the welds to twist, thereby adjusting the bimetallic assembly 100. The adjusting rod 520 rotates about a first axis O1, which can also be understood as the axis of the adjusting rod 520 itself, i.e., a line passing through the centers of its radial cross-sections. Of course, as an alternative, the rest of the bimetallic strip 120 can be placed in the drive slot 520a and twisted to complete the bimetallic adjustment. As shown in the figure, the solid line bimetallic component 100 is twisted to the dotted line position, and twisted by an angle α. The angle α here is not a fixed angle for each bimetallic component 100. For example, for some bimetallic components 100 with larger angle offsets, the angle α is relatively larger. For some bimetallic components 100 with smaller angle offsets, the angle α is relatively smaller. For some bimetallic components 100 whose angles meet the requirements, no twisting is required.

[0060] Here, the end of the adjustment rod 520 is a fork-shaped structure 520b, and a driving groove 520a is formed in the middle of the fork-shaped structure 520b. The driving groove 520a has a dimension in the depth direction D. The depth direction D dimension here is larger than the dimension of the three welding points, and the depth direction D is parallel to the first dimension S1.

[0061] Here, the driving groove 520a has a width dimension, and the width dimension is greater than the width dimension of the three welds. Of course, it can also be equal to the width dimension of the three welds. Here, the width direction is perpendicular to the first axis O1.

[0062] The electric device 510 is used to drive the adjustment rod 520 to rotate the adjustment rod 520 to complete the double-gold adjustment.

[0063] Such an adjustment mechanism 500 is combined with the clamping mechanism 400, and the first pressing block 410 is used to press the arc guide plate 110 by tilting the movement, so that the double metal assembly 100 can be pressed more tightly (using a clamping structure can generate at least two clamping forces in different directions, and the clamping effect is better). Then, the driving groove 520a of the adjustment rod 520 is used to twist the double metal to complete the double metal adjustment. Such a structure is more suitable for the initial adjustment of the double metal assembly 100 of the small circuit breaker during the production process.

[0064] Here, there are many design forms of the electric device 510. As one way, the motor component 510a is used to drive the adjustment rod 520 through the transmission component.

[0065] Here, the output shaft of the motor assembly 510a and the adjustment rod 520 are different axes, that is, the rotation center of the output shaft of the motor assembly 510a is the second axis O2, the first axis O1 and the second axis O2 do not coincide, and the transmission assembly is a belt transmission assembly.

[0066] The belt drive assembly includes a first pulley 510b, a second pulley 510c, and a transmission belt 510d. The first pulley 510b is sleeved onto the output shaft of the motor assembly 510a, forming a transmission connection. A keyway can be used to achieve the transmission connection between the output shaft of the motor assembly 510a and the first pulley 510b. Alternatively, a flange connection, sleeve connection, or ferrule connection can be used to form the transmission connection, as long as the two can move synchronously.

[0067] The second pulley 510c is sleeved on the adjusting rod 520 to form a transmission connection. Similarly, a keyway is used to achieve the transmission connection between the second pulley 510c and the adjusting rod 520. Of course, other methods such as flange connection, sleeve connection, and ferrule connection can also be used to form the transmission connection. In any case, as long as the two can move synchronously, it is sufficient.

[0068] The transmission belt 510d is wound around the first pulley 510b and the second pulley 510c, so that the first pulley 510b can drive the second pulley 510c to transmit the power by means of the transmission belt 510d.

[0069] This belt drive structure is relatively mature and has the characteristics of simple structure, stability and high cost performance when used in double metal adjustment.

[0070] Of course, in this way of arranging the output shaft and the adjusting rod 520 on different axes, the transmission assembly can also be configured as a chain transmission assembly (sprocket, transmission chain, etc.) or a gear transmission assembly, as long as it can be ensured that transmission can be achieved even when the two are on different axes.

[0071] Here, there are many options for the motor assembly 510a. For example, it can be a motor with a built-in speed reduction mechanism, or a motor combined with an external speed reduction mechanism. In this way, after speed reduction, the transmission assembly is driven to rotate the adjustment rod 520. 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 adjustment rod 520.

[0072] To ensure the stability of the adjustment rod 520's movement, the automatic adjustment bimetallic strip device for a miniature circuit breaker also includes a first bracket 530 having a through-hole 530a. Two bearings 530b are disposed within the through-hole 530a. The adjustment rod 520 passes through the through-hole 530a and the bearings 530b, with both ends of the adjustment rod 520 positioned outside the through-hole 530a and the middle portion positioned inside the through-hole 530a to engage with the bearings 530b.

[0073] For this small circuit breaker automatic adjustment bimetallic strip device, in order to achieve its semi-automatic or fully automatic adjustment, its adjustment rod 520 can be controlled by the first lifting mechanism to move close to and away from the bimetallic component 100 to achieve semi-automatic or fully automatic detection.

[0074] Specifically, the miniature circuit breaker automatic adjustment bimetallic strip device further includes a main bracket 530d and a linear motion power source 530c.

[0075] The main support 530d is fixed to the workbench 200, and the first support 530 and the main support 530d are arranged to slide with each other, where the sliding direction is the first dimension S1. Here, the sliding arrangement adopts a guide rail and slide groove structure, with the guide rail provided on the main support 530d and the slide groove provided on the first support 530, and the two form a sliding fit. Here, the motor assembly 510a is fixed to the first support 530, and the fixation here is direct fixation, of course, other indirect fixation methods can also be used.

[0076] The linear motion power source 530c can achieve movement under the drive of the main control system. The linear motion power source 530c here uses a cylinder assembly (the cylinder assembly here can be understood as a single cylinder, or a cylinder and a slider fixed to the cylinder top rod). The output part of the cylinder assembly is connected to the first bracket 530, so that the first bracket 530 can slide back and forth along the guide rail in the first dimension S1. When the output part of the cylinder assembly is extended, the first bracket 530 slides in the first direction, that is, the adjustment rod 520 approaches the bimetallic assembly 100 (this is the action before preparing for adjustment) until the adjustment rod 520 completes the adjustment of the bimetallic assembly 100; when the output part of the cylinder assembly is retracted, the first bracket 530 slides in the second direction, that is, the adjustment rod 520 moves away from the bimetallic assembly 100.

[0077] Of course, there are many ways to choose this linear motion power source 530c. In addition to the cylinder assembly, an oil cylinder assembly or a combination of a motor and a screw slider mechanism can also be used (the motor drives the screw to rotate, which is converted into a slider to achieve linear motion).

[0078] Here, the first bracket 530 includes a slider portion 5301 , a mounting plate 5302 , a mating portion 5303 of the adjustment rod 520 , a mating portion 5304 of the motor assembly, and a motor assembly assembly plate 5305 .

[0079] The slide groove is provided on the slider portion 5301 , and the slider portion 5301 is fixed to the mounting plate 5302 and fastened with bolts.

[0080] Adjusting rod 520 matching portion 5303, motor assembly matching portion 5304 are all fixed on the side of mounting plate 5302 away from slider portion 5301, adopt bolt fastening. Here, adjusting rod 520 matching portion 5303, motor assembly matching portion 5304 are arranged at intervals.

[0081] The motor assembly 510a is fixed on the motor assembly assembly plate 5305 and fastened with bolts. The motor assembly assembly plate 5305 is fixed on the motor assembly matching portion 5304 and fastened with bolts.

[0082] Here, although the first bracket 530 in this embodiment is composed of a plurality of components that are formed separately and then fastened by bolts, some of the components may be formed integrally, or fastened using other fastening methods.

[0083] To enhance the clamping effect, the clamping mechanism 400 also includes a second pressing mechanism, which presses against the carrier 300 to ensure overall stability. Here, the second pressing mechanism presses against both sides of the carrier 300 in the second dimension S2, effectively generating a compressive force on the carrier 300 parallel to the working plane 210 (a compressive force in the second dimension S2). This second pressing mechanism facilitates the pressing and positioning of the carrier 300.

[0084] Here, the second pressing mechanism includes a second driving structure 430 , a second pressing block 440 and a first limiting bracket 220 (which is also a part of the workbench 200 ).

[0085] The workbench 200 includes a first position-limiting bracket 220 and a second position-limiting bracket 230 . The first position-limiting bracket 220 and the second position-limiting bracket 230 are spaced apart and are located on both sides of the work plane 210 .

[0086] The second driving structure 430 is located on a side of the second limiting bracket 230 that faces away from the first limiting bracket 220 in the second dimension S2. The second limiting bracket 230 has a through hole 230a. The second pressing block 440 slides through the through hole 230a. One end of the second pressing block 440 is connected to the second driving structure 430, and the other end acts on the carrier 300.

[0087] Here, the second drive structure 430 operates under the control of the main control system. The second drive structure 430 utilizes a pneumatic cylinder assembly, which, under the action of the cylinder, clamps or releases the second pressure block 440 and the first limiting bracket 220. Of course, the second drive structure 430 can also utilize an oil cylinder assembly or a combination of a motor and a screw-slider mechanism. Either method is sufficient as long as the power applied can achieve the movement of the second pressure block 440.

[0088] For the carrier 300, it has a positioning groove 310 on its surface close to the second pressure block 440, and the second pressure block 440 has a positioning protrusion 440a, which can be pushed into the positioning groove 310 to form a positioning fit. Such positioning fit will improve the stability of the carrier 300 being clamped.

[0089] In order to facilitate the movement of the carrier 300 into and out of the working area, the miniature circuit breaker automatic adjustment bimetallic strip device also includes a clamping and feeding mechanism 600, which can carry the carrier 300 into and out of the working area of ​​the first pressure block 410 and the adjustment mechanism 500, and the direction of movement is the third dimension S3.

[0090] Here, the clamping and feeding mechanism 600 includes a third driving structure 610 , a fourth driving structure 620 and a carrier mounting frame 630 .

[0091] The carrier mounting frame 630 is mounted on the carrier mounting frame 630. The carrier mounting frame 630 is movable along the third dimension S3 within the working plane 210, thereby carrying the carrier 300 in and out of the working area of ​​the first pressing block 410 and the adjustment mechanism 500. Here, the carrier mounting frame 630 includes a first support arm 630a and a second support arm 630b. The first support arm 630a and the second support arm 630b are spaced apart in the third dimension S3. The carrier 300 is positioned in the space, and this space can accommodate multiple carriers 300. In this embodiment, there are four carriers 300, but fewer or more carriers 300 can also be accommodated.

[0092] The third driving structure 610 operates under the drive of the main control system. Here, the third driving structure 610 adopts a cylinder assembly, and of course, it can also adopt an oil cylinder assembly or a motor and screw slider assembly.

[0093] The carrier mounting frame 630 is fixed on the third driving structure 610 and may be fixed by bolts, so as to enable the carrier mounting frame 630 to move in two directions of the first dimension S1.

[0094] The fourth drive structure 620 operates under the control of the main control system. Here, the fourth drive structure 620 utilizes a combination of a motor and a screw-slider mechanism. The third drive structure 610 is fixed to the output component (i.e., the slider) of the fourth drive structure 620. In this way, the fourth drive structure 620 can drive the third drive structure 610 and the carrier mounting frame 630 to move in two directions of the third dimension S3.

[0095] Through the combination of the fourth driving structure 620 and the third driving structure 610 , the carrier 300 that has completed the adjustment process and the carrier 300 that has not completed the adjustment process are moved to the adaptation position.

[0096] The adaptive position here means that if the bimetallic components 100 of the carrier 300 currently in the existing carrier mounting frame 630 have completed the adjustment work, then they can be moved out of the working area (the working area of ​​the small circuit breaker automatic adjustment bimetallic strip device), and those that have not been completed are moved into the working area.

[0097] The specific working principle is that after the adjusted carrier 300 is moved out of the working area, the third drive structure 610 drives the carrier mounting frame 630 to move in the first direction of the first dimension S1, so that the carrier mounting frame 630 is away from the adjusted carrier 300. The fourth drive structure 620 is then used to move the carrier mounting frame 630 in the second direction of the third dimension S3. Once in place, the third drive structure 610 drives the carrier mounting frame 630 in the third direction of the first dimension S1. The new carrier 300 is now in the carrier mounting frame 630. The fourth drive structure 620 is then used to move the carrier mounting frame 630 in the fourth direction of the third dimension S3. This reciprocating process completes the movement of the carrier 300.

[0098] Here, there are three carrier mounting frames 630 and three third drive structures 610, all of which are fixed on the same fourth drive structure 620. Such three carrier mounting frames 630 can complete alternating and step-by-step feeding, that is, the same carrier 300 passes through the reciprocating motion of the third drive structure 610 and the fourth drive structure 620, and circulates in the three carrier mounting frames 630 in turn, and finally moves to the target position.

[0099] One of the carrier mounting racks 630 is closest to the feeding port 240 . After the carrier 300 in the feeding port 240 enters the carrier mounting rack 630 , it is adjusted to a predetermined position through the introduction mechanism 700 .

[0100] The induction mechanism 700 pushes the carrier 300, which has just entered the carrier mounting frame 630 through the feed port 240, to a predetermined position. Here, the predetermined position refers to pushing the carrier 300 toward the first support arm 630a. For example, if four carriers 300 are mounted on a carrier mounting frame 630, the first carrier 300 is pushed toward the first support arm 630a, the second carrier 300 is pushed toward the first support arm 630a (pushed next to the first carrier 300), the third carrier 300 is pushed toward the first support arm 630a (pushed next to the second carrier 300), and the fourth carrier 300 is pushed toward the first support arm 630a (pushed next to the fourth carrier 300). Therefore, the predetermined position here is different for each carrier 300 and specifically refers to pushing the carrier 300 toward the first support arm 630a.

[0101] Here, the introduction mechanism 700 includes a push rod 710 and a power source 720. The power source 720 is a pneumatic cylinder assembly, which also operates under the control of the main control system. Alternatively, it can be an oil cylinder assembly or a combination of a motor and a screw-slider mechanism. The push rod 710 is fixed to the output of the power source 720 and reciprocates in two directions in the third dimension S3. Here, the direction in which the push rod 710 pushes the carrier 300 is perpendicular to the direction of movement of the feeding mechanism 800.

[0102] The direction in which the carrier 300 enters the carrier mounting frame 630 from the feeding port 240 (the entry direction is the direction of the second dimension S2 ) is vertical.

[0103] Such an introduction mechanism 700 is arranged to facilitate the arrangement of the carrier 300 .

[0104] The CCD visual inspection module 450 is used to capture image information of the carrier 300 to be processed and feed the image information back to the main control system. The CCD visual inspection module 450 includes a camera module, a light source, and other structures, which are conventional structures in the field of automation and will not be described here.

[0105] The main control system determines whether the position of the bimetallic strip 120 in the current image information meets a preset standard. The preset standard refers to whether the position of the bimetallic strip 120 is within a set area. If it is within the area, it meets the preset standard. If it is not within the area, it is determined to be non-compliant (needing adjustment). This preset standard is pre-programmed into the main control system.

[0106] For bimetallic components 100 that do not meet the preset standards, the main control system controls the operation of the first drive structure 420, causing the first pressure block 410 to press the arc guide plate 110. The main control system controls the operation of the first lifting mechanism, causing the adjustment rod 520 to approach the bimetallic component 100 (so that the bimetallic component 100 partially extends into the drive slot 520a). The main control system then controls the operation of the electric device 510 to drive the adjustment rod 520 to rotate to achieve torsional adjustment of the bimetallic strip 120. During the adjustment, the CCD visual detection module 450 obtains the adjustment information in real time to obtain the final adjusted position of the bimetallic strip 120.

[0107] Through such a structure, automatic detection and adjustment of the dual-metal component 100 during the production process can be achieved, which is beneficial to improving the qualification rate of the final product.

[0108] The unqualified products and qualified products after adjustment can also be moved by the unloading mechanism 900 to improve the automation level of the entire production line.

[0109] Here, the unqualified channel 202 is also used to transport the carrier 300, but the position of the bimetallic strip 120 in the carrier 300 in this channel is still not in compliance with the requirements after adjustment. Here, the specific transportation method of the unqualified channel 202 is the same as that of the main feeding channel 201, also using a plate chain. Of course, a conveyor belt or other methods can also be used.

[0110] The unloading mechanism 900, under the control of the main control system, can move back and forth between the main feed channel 201, the unqualified channel 202, and the working area of ​​the detection and adjustment device 45. Here, after adjustment, carriers 300 that pass the double-gold position are moved into the main feed channel 201 by the unloading mechanism 900 and then move along the main feed channel 201 to the next workstation. Carriers 300 that fail the double-gold position after adjustment are moved into the unqualified channel 202 by the unloading mechanism 900 for subsequent processing (such as scrapping or repair). This unloading mechanism 900, combined with the design of the main feed channel 201 and the unqualified channel 202, further enhances the automation level of the production line.

[0111] Here, the unloading mechanism 900 includes a translation device 910 , a second lifting mechanism 920 , and pneumatic clamping fingers 930 .

[0112] The number of pneumatic gripping fingers 930 matches the number of carriers 300 within the carrier mounting frame 630, with four pneumatic gripping fingers 930 being used in this embodiment. Each of the pneumatic gripping fingers 930 is controlled by a master control system, and the gripping and releasing actions of each pneumatic gripping finger 930 are independent. This allows the pneumatic gripping fingers 930 to release carriers 300 into corresponding channels when they reach different channels, even if both qualified and unqualified dual metal components 100 are present within the same carrier mounting frame 630.

[0113] The second lifting mechanism 920 utilizes a cylinder assembly combined with a sliding block structure. The pneumatic gripper finger 930 is fixed to the sliding block, which is capable of moving in both directions of the first dimension S1 under the action of the cylinder assembly. The cylinder assembly of the second lifting mechanism 920 is also controlled by the main control system. Of course, the cylinder assembly can also be replaced with an oil cylinder assembly or a combination of a motor and a screw-slider mechanism.

[0114] The translation device 910 adopts a combination of a motor and a screw slider mechanism. The second lifting mechanism 920 is fixed on the output part of the mechanism. The output part of the mechanism can move in two directions of the second dimension S2, so that the carrier 300 can move to the area where the main feeding channel 201 and the unqualified channel 202 are located.

[0115] Here, in the second dimension S2 , the main feeding channel 201 and the unqualified channel 202 are respectively arranged on both sides of the working area of ​​the detection and adjustment device 45 .

[0116] Through the setting of this unloading mechanism 900, the entire workflow is: using the main control system to control the lifting and lowering of the second lifting mechanism 920, the translation of the translation device 910, and the clamping and release of the pneumatic clamping fingers 930, the carrier 300 can be moved to the corresponding channel.

[0117] Such a structure is very simple and has a high degree of automation.

[0118] In order to further improve the detection accuracy, the detection and adjustment device 45 includes multiple groups, and in this embodiment, there are two groups, namely a first detection and adjustment device 45 and a second detection and adjustment device 45 .

[0119] The two groups are arranged sequentially, and the carrier 300 is transferred by a clamping and feeding mechanism. In this way, the bimetallic component 100 processed by the first detection and adjustment device 45 can enter the second detection and adjustment device 45 for further detection and adjustment. The detection and adjustment steps have been described above and will not be repeated here.

[0120] By designing the two detection and adjustment devices 45, the adjustment accuracy and the product qualification rate can be improved.

[0121] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are 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 any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, described in this specification, unless otherwise inconsistent.

[0122] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A small circuit breaker automatic adjustment bimetallic strip device, characterized by: include, A feeding mechanism, used to guide the carrier to be processed in the main feeding channel into the clamping feeding mechanism; The carrier is used to carry the bimetallic component, which includes an arc guide plate, a bimetallic sheet, and a conductive sheet, which are welded and fixed; The detection and adjustment device includes a working plane for placing the carrier to be processed, a pressing mechanism, an adjustment mechanism, and a CCD visual detection module; A clamping and feeding mechanism, used to carry the carrier into and out of the working area of ​​the detection and adjustment device; The clamping mechanism is controlled by the main control system and is used to clamp the bimetallic components in the carrier; The adjusting mechanism includes an electric device and an adjusting rod, wherein the adjusting rod is arranged to rotate about the first axis as the rotation center, the end of the adjusting rod has a driving groove, a portion of the bimetallic strip is located in the driving groove, and the adjusting rod rotates under the drive of the electric device; CCD visual detection module, used to capture image information in the vehicle; The main control system is used to control the detection and adjustment device; the main control system receives image information from the CCD visual detection module and determines whether the position of the bimetallic strip in the image meets the preset standard; if it does not meet the preset standard, the clamping mechanism is controlled to clamp the bimetallic component, and the adjustment rod is driven to rotate by the electric device to achieve torsion adjustment of the bimetallic strip, and the position of the adjusted bimetallic strip is obtained through the CCD visual detection module.

2. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 1, characterized in that: The detection and adjustment device includes two groups, namely a first detection and adjustment device and a second detection and adjustment device; The clamping and feeding mechanism is used to move the carrier processed by the first detection and adjustment device into the second detection and adjustment device; The main control system uses the second detection and adjustment device to detect and adjust the bimetallic strip processed by the first detection and adjustment device again.

3. A miniature circuit breaker automatic adjustment bimetallic strip device according to claim 1 or 2, characterized in that: It also includes a main feeding channel, an unqualified channel and a unloading mechanism. Under the control of the main control system, the unloading mechanism moves the carrier that has been finally adjusted by the detection and adjustment device into the main feeding channel or the unqualified channel; among them, the carrier with qualified bimetallic strips is moved into the main feeding channel, and the carrier with unqualified bimetallic strips is moved into the unqualified channel.

4. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 3, characterized in that: The unloading mechanism includes a translation device, a second lifting mechanism and pneumatic clamping fingers; the pneumatic clamping fingers are used to clamp the carrier or release the clamping of the carrier; the pneumatic clamping fingers are fixed on the second lifting mechanism, and the second lifting mechanism is used to realize the movement of the carrier in two directions in the first dimension; the second lifting mechanism is fixed on the translation device, and the translation device is used to realize the movement of the carrier in the second dimension; in the second dimension, the main feeding channel and the unqualified channel are respectively arranged on both sides of the working area of ​​the detection and adjustment device.

5. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 1, characterized in that: The clamping and feeding mechanism includes a third driving structure, a fourth driving structure and a carrier mounting frame, and the carrier is mounted in the carrier mounting frame; The feeding mechanism guides the carrier to be processed into the carrier mounting frame; The third driving structure is connected to the carrier mounting frame to drive the carrier mounting frame to move in two directions in the first dimension; the fourth driving structure is connected to the third driving structure to drive the carrier mounting frame and the third driving structure to move in two directions in the third dimension; the first dimension and the third dimension are perpendicular to each other, and the fourth driving structure is combined with the third driving structure to enable the carrier to move in and out of the working area of ​​the detection and adjustment device.

6. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 5, characterized in that: It also includes an import mechanism; the carrier mounting frame accommodates at least two carriers in the third dimension, and the import mechanism is used to push the carrier that has just been fed into the carrier mounting frame by the feeding mechanism to a predetermined position on the carrier mounting frame, and the movement direction of the import mechanism is perpendicular to the movement direction of the feeding mechanism.

7. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 1, characterized in that: The welding point of the arc guide plate, the bimetallic sheet, and the conductive sheet is used to be placed in the driving groove; the end of the adjusting rod is a fork-shaped structure, and the middle of the fork-shaped structure forms the driving groove. The depth of the driving groove is greater than that of the bimetallic component, and the depth direction is parallel to the first axis. And / or, the electric device includes a motor assembly and a transmission assembly, the rotation center of the output shaft of the motor assembly is the second axis, the first axis and the second axis do not coincide with each other, the output shaft of the motor assembly drives the adjusting rod to rotate through the transmission assembly, and the transmission assembly is a belt transmission assembly, a gear transmission assembly, or a chain transmission assembly; And / or, the adjustment mechanism includes a first bracket, the first bracket has a through hole, a bearing is provided in the through hole, and the adjustment rod passes through the through hole and the bearing; And / or, the adjustment mechanism also includes a first lifting mechanism, the first lifting mechanism includes a first bracket and a linear motion power source, the adjustment rod is arranged on the first bracket, and the linear motion power source is used to drive the first bracket to reciprocate in the first dimension to enable the bimetallic strip to enter or leave the drive groove; the first dimension is parallel to the first axis.

8. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 1, characterized in that: The clamping mechanism includes a first clamping block and a first driving structure. The first clamping block is arranged to move relative to the working plane and the movement direction is inclined to the working plane. The first driving structure drives the first clamping block to move toward the working plane to clamp the arc guide plate on at least two surfaces in different directions to generate a clamping force perpendicular to the working plane and a clamping force parallel to the working plane.

9. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 8, characterized in that: The arc guide plate includes a bending portion, which includes a first plate portion and a second plate portion, the first plate portion and the second plate portion are arranged at an angle, and a clamping portion extends from one side of the second plate portion; the first pressure block includes a first pressing surface and a second pressing surface; the direction of the pressing force generated by the first pressing surface pressing on the first plate portion is a first dimension, and the direction of the pressing force generated by the second pressing surface pressing on the clamping portion is a composite direction of the second dimension and the third dimension, and the first dimension, the second dimension and the third dimension are perpendicular to each other; Alternatively, the first pressing block includes a first pressing foot and a second pressing foot, a first avoidance groove is formed between the first pressing foot and the second pressing foot, the first pressing foot has a first pressing surface parallel to the working plane, and one surface of the second pressing foot in the first avoidance groove is a second pressing surface, and the first pressing surface and the second pressing surface respectively press on two surfaces of the arc guide plate in different directions; Alternatively, the first pressing block includes a first presser foot and a second presser foot, a first avoidance groove is formed between the first presser foot and the second presser foot, a second avoidance groove is provided on the second presser foot, and the first avoidance groove and the second avoidance groove are respectively arranged on both sides of the second presser foot.

10. The automatic adjustment bimetallic strip device for a miniature circuit breaker according to claim 1, characterized in that: The pressing mechanism further includes a second pressing mechanism, which presses on both sides of the carrier in the second dimension to generate a carrier pressing force on the carrier in a direction parallel to the working plane.

Images