Welding apparatus for dual power circuit breaker contact elements

Abstract

The utility model discloses a kind of welding devices of double power circuit breaker contact element, including rack, support assembly, compression assembly and two electrodes, the support assembly, compression assembly and electrode assembly are all arranged on rack, the support assembly is used to fix element, contact, lead arc angle, the compression assembly is compressed in element to contact lead arc angle, two the electrode is respectively resisted to element and lead arc angle and the two sides of contact opposite position, two the electrode cooperation simultaneously weld lead arc angle and contact with element, by the cooperation of support assembly and compression assembly, the accurate positioning and firm compression of element, contact and lead arc angle are realized;When welding, by the cooperation of two electrodes, the welding work of three different material parts such as element, contact and lead arc angle can be completed once, product welding consistency is good, welding efficiency is high, and batch production of product can be realized.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to a welding device for contact elements of a dual-power circuit breaker. Background Technology

[0002] As the core electrical contact component inside a dual-power circuit breaker, the contact element includes the component itself and the arc-starting angle and contacts welded to it. Notches are provided on both sides of the component. The quality of the welding largely determines the service life of the switch, making welding quality particularly important. Typically, high-frequency induction brazing or resistance brazing is used when welding these special U-shaped contact elements. If high-frequency induction brazing is used, this process allows for simultaneous welding of the contacts and arc-starting angle. Since the arc-starting angle is made of copper-plated iron and the contacts are made of silver-graphite, welding both simultaneously... The components are heated together. Because the arc-starting angle is made of iron, it heats up to a red-hot state first. When the solder reaches a completely melted state, the arc-starting angle will experience overheating of the electroplating layer, affecting the product's appearance and electroplating quality. If a direct resistance brazing process with metal electrodes is used, the welding of the components and contacts must be completed first, and then the welding of the components and arc-starting angle must be completed. However, after the contacts are welded, there will be a 0.2mm high solder accumulation around them. This will create a certain assembly gap between the arc-starting angle and the contacts, thus affecting the arc-extinguishing effect of the dual-power circuit breaker switch when energized. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a welding device for the contact elements of a dual power circuit breaker, which can complete the welding process of three parts of different materials such as components, contacts and arc-starting angles in one go, thereby improving work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a welding device for contact elements of a dual-power circuit breaker, comprising a frame, a support assembly, a clamping assembly, and two electrodes. The support assembly, clamping assembly, and electrodes are all mounted on the frame. The support assembly is used to fix the element, contact, and arc-starting angle. The clamping assembly presses the arc-starting angle and contact against the element. The two electrodes are respectively positioned on both sides of the element and the arc-starting angle and contact at their respective relative positions. The two electrodes cooperate to simultaneously weld the arc-starting angle and contact to the element.

[0005] As a further improvement of this utility model, the clamping assembly includes two ceramic pressure rods and two pressure rod drivers. The pressure rod drivers drive the corresponding ceramic pressure rods to move toward the support assembly, and the two ceramic pressure rods correspond to the contact point and the arc-starting angle, respectively, and clamp them onto the element.

[0006] As a further improvement of this utility model, the support assembly further includes a component support device, which includes a component support platform, a limiting boss, a limiting clamp, and a limiting push block. The component support platform is used to place the component, and the limiting boss, the limiting clamp, and the limiting push block cooperate to limit the component. The limiting boss is located at a notch on the side of the component and is adapted to the notch. The limiting clamp is located on the side of the component to clamp the component. The component support platform is provided with a movable groove for the limiting push block to move. The limiting push block is provided with a limiting groove for the component to be inserted and adapted to it. The limiting groove is used to limit the arc angle and prevent the component from tilting when the contact is pressed.

[0007] As a further improvement of this utility model, a control module is provided on one side of the component support platform. The control module includes a push rod driver and a push rod mounted on the output shaft of the push rod driver. The push rod cooperates with the limiting boss and the limiting clamping block. The push rod driver is used to drive the push rod to control the tightness between the limiting boss and the limiting clamping block and the component.

[0008] As a further improvement of this utility model, the component support platform is provided with a first spring, a second spring, and a third spring; the first spring and the second spring respectively push the limiting boss and the limiting clamping block away from the component support platform; the part of the push rod that abuts against the limiting boss and the limiting clamping block is provided with a groove; the push rod is provided with a guide slope corresponding to the groove; the first spring and the second spring push the limiting boss and the limiting clamping block out, and a part of the limiting boss and the limiting clamping block will enter the groove; when the push rod moves, the guide slope on the push rod can push the limiting boss and the limiting clamping block tightly towards the spring; the third spring pushes the limiting push block towards the component.

[0009] As a further improvement of this utility model, the support assembly also includes an arc-leading angle support device, which includes a positioning clamp and a positioning clamp driver. The positioning clamp driver drives the positioning clamp to open or close, and the end of the positioning clamp forms an arc-leading angle clamping cavity that is adapted to the shape of the arc-leading angle when it is closed.

[0010] As a further improvement of this utility model, the two electrodes include a first electrode, a second electrode, a first electrode holder and a second electrode holder for mounting the corresponding electrodes, and an electrode holder driver; the electrode holder driver drives the first electrode to move closer to or away from the second electrode.

[0011] As a further improvement of this utility model, the frame is also provided with a base track, a component base disposed on the base track, and a base driver connected to the component base; the component support device is disposed on the component base, and the base driver drives the component base to move on the base track and moves the component support device away from or closer to the two electrodes.

[0012] As a further improvement of this utility model, the component base includes a fixed base and a movable base connected to the fixed base. The fixed base is provided with a guide rod for the movable base to move. The movable base moves along the guide rod in a direction perpendicular to the driving direction of the base driver. The fixed base is provided with an adjustment buffer that abuts against the movable base. An adjustment spring is provided between the guide rod and the fixed base.

[0013] As a further improvement of this utility model, the support assembly further includes a contact support device, which includes a contact clamping member driver, a track, and a pair of contact clamping members mounted on the track; the contact clamping member driver drives the pair of contact clamping members to close or separate; when the pair of contact clamping members close, a contact clamping cavity is formed that can clamp the contact.

[0014] The beneficial effects of this utility model are that, through the cooperation of the support component and the clamping component, the precise positioning and stable clamping of the components, contacts and arc-starting angles can be achieved; during welding, the two electrodes cooperate with each other to complete the welding of three different materials such as components, contacts and arc-starting angles in one go, resulting in good welding consistency and high welding efficiency, and enabling mass production of products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the components in an embodiment of the present utility model; Figure 2 This is a perspective view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the component support device in an embodiment of the present utility model; Figure 4 This is a cross-sectional view of the component support device in an embodiment of the present utility model; Figure 5 This is a top view of the component support device according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the arc-angle support device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the electrodes in an embodiment of the present invention; Figure 8 This is a schematic diagram of the contact support device according to an embodiment of the present utility model; Figure 9 This is a front view of the component base in an embodiment of this utility model; Figure 10 This is a schematic diagram of the component base from another angle in an embodiment of this utility model.

[0016] Reference numerals in the figures: 1. Component; 2. Contact; 3. Arc-starting angle; 4. Notch; 5. Frame; 6. Ceramic pressure rod; 7. Pressure rod driver; 8. Component support device; 9. Component support platform; 10. Limiting boss; 11. Limiting clamp; 12. Limiting push block; 13. Limiting groove; 14. Movable groove; 15. Push rod driver; 16. Push rod; 17. First spring; 18. Second spring; 19. Third spring; 20. Groove; 21. Guide slope; 22. Arc-starting angle support device; 23. Positioning clamp; 24. Positioning clamp driver; 25. Contact support device; 26. Contact clamp driver; 27. Track; 28. Contact clamp; 29. ​​Electrode; 30. First electrode; 31. Second electrode; 32. First electrode holder; 33. Second electrode holder; 34. Electrode holder driver; 35. Base track; 36. Component base; 37. Base driver; 38. Fixed base; 39. Movable base; 40. Guide rod; 41. Adjustment buffer; 42. Adjustment spring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0018] Reference Figure 1-10 As shown, a welding device for a dual-power circuit breaker contact element 1 includes a frame 5, a support assembly, a clamping assembly, and two electrodes 29. The support assembly, clamping assembly, and electrodes 29 are all mounted on the frame 5. The support assembly is used to fix the element 1, contact 2, and arc-starting angle 3. The clamping assembly presses the arc-starting angle 3 and contact 2 against the element 1. The two electrodes 29 are respectively positioned on both sides of the element 1 relative to the arc-starting angle 3 and contact 2. The two electrodes 29 cooperate to weld the arc-starting angle 3 and contact 2 to the element 1 simultaneously.

[0019] In this embodiment, the two electrodes 29 are changed from the traditional vertical arrangement to a horizontal arrangement that abuts against the component 1. More preferably, the two electrodes 29 are symmetrically arranged on both sides of the component 1 and abut against the component 1. The arc-starting angle 3 and the contact 2 are pressed against the component 1 by the clamping assembly to realize the indirect resistance brazing process. This process can complete the welding of three parts of different materials, namely the component 1, the contact 2 and the arc-starting angle 3, in one go. Since the internal structure of the contact 2 and the arc-starting angle 3 is not subjected to a large welding pressure and welding current heating, the working surfaces of the two are not damaged. Since the contact 2 and the arc-starting angle 3 are welded at the same time, there is no obvious welding gap between them. After the product is welded, the solder overflow around the arc-starting angle 3 and the contact 2 is uniform. The welding bonding rate, metallographic and shear force performance indicators are good. The product welding consistency is good and the welding efficiency is high, which can realize the mass production of the product.

[0020] Preferably, the clamping assembly includes two ceramic pressure rods 6 and two pressure rod drivers 7. The pressure rod drivers 7 drive the corresponding ceramic pressure rods 6 to move toward the support assembly, and the two ceramic pressure rods 6 correspond to the contact point 2 and the arc-starting angle 3 respectively and clamp them onto the element 1.

[0021] In this embodiment, a one-to-one ceramic pressure rod 6 and pressure rod driver 7 are specially set for the contact 2 and the arc-starting angle 3 to achieve independent and precise clamping of two parts made of different materials. The ceramic pressure rod 6 can also avoid the risk of leakage.

[0022] Furthermore, the support assembly also includes a component support device 8, which includes a component support platform 9, a limiting boss 10, a limiting clamp 11, and a limiting push block 12. The component support platform 9 is used to place the component 1. The limiting boss 10, the limiting clamp 11, and the limiting push block 12 cooperate with each other to limit the component 1. The limiting boss 10 is located at the notch 4 on the side of the component 1 and is adapted to the notch 4. The limiting clamp 11 is located on the side of the component 1 to clamp the component 1. The component support platform 9 is provided with a movable groove 14 for the limiting push block 12 to move. The limiting push block 12 is provided with a limiting groove 13 for the component 1 to be inserted and adapted to it. The limiting groove 13 is used to limit the lifting of the component 1 when the arc angle 3 and the contact 2 are pressed.

[0023] In this embodiment, the component support platform 9 provides a flat and stable bearing reference for the component 1; the limiting boss 10 adapts to the side notch 4, initially limiting the displacement; the limiting clamp 11 clamps from the side, further consolidating the fixation of the component 1; in this solution, when a side plate is provided on one side of the component support platform 9, the limiting boss 10 and the limiting clamp 11 can be provided on one side of the component 1 (the side away from the side plate); when the component support platform 9 does not have a side plate on one side, the limiting boss 10 and the limiting clamp 11 can be provided on both sides of the component 1; the limiting push block 12 adapts to the component 1 through the movable groove 14, and the limiting groove 13 can limit the lifting of the component 1 when the arc angle 3 and the contact point 2 are pressed; the limiting boss 10, the limiting clamp 11 and the limiting push block 12 cooperate with each other to achieve accurate positioning and stable fixation of the component 1.

[0024] Preferably, a control module is provided on one side of the component support platform 9. The control module includes a push rod driver 15 and a push rod 16 mounted on the output shaft of the push rod driver 15. The push rod 16 cooperates with the limiting boss 10 and the limiting clamp 11. The push rod driver 15 is used to drive the push rod 16 to control the tightness between the limiting boss 10 and the limiting clamp 11 and the component 1.

[0025] In this embodiment, a push rod driver 15 is set to replace manual adjustment. The automated toolbox is more precise than manual adjustment, preventing damage to component 1 due to excessive tightness or displacement of component 1 due to excessive looseness. The adjustable limiting boss 10 and limiting clamp 11 can also be adapted to components 1 of different sizes and specifications.

[0026] Furthermore, the component support platform 9 is provided with a first spring 17, a second spring 18, and a third spring 19; the first spring 17 and the second spring 18 respectively push the limiting boss 10 and the limiting clamp 11 toward the direction away from the component support platform 9; the part of the push rod 16 that abuts against the limiting boss 10 and the limiting clamp 11 is provided with a groove 20; the push rod 16 is provided with a guide slope 21 corresponding to the groove 20; the first spring 17 and the second spring 18 push the limiting boss 10 and the limiting clamp 11 out, and a part of the limiting boss 10 and the limiting clamp 11 will enter the groove 20; when the push rod 16 moves, the guide slope 21 on the push rod 16 can press the limiting boss 10 and the limiting clamp 11 toward the spring; the third spring 19 pushes the limiting push block 12 toward the component 1.

[0027] In this embodiment, the first spring 17 and the second spring 18, under normal conditions, push the limiting boss 10 and the limiting clamp 11 toward a direction away from the component support platform 9, allowing the component 1 to be directly inserted without manually opening the limiting boss 10 and the limiting clamp 11, thus simplifying the installation steps. Since the first spring 17 and the second spring 18 push the limiting boss 10 and the limiting clamp 11 out under normal conditions, a groove 20 is provided on the push rod 16 so that at least a portion of the limiting clamp 11 and the limiting boss 10 enters the groove 20. A guide slope 21 is provided on the position corresponding to the groove 20 on the push rod 16. The guide slope 21 can better transmit the force of the push rod 16 to the limiting boss 10 and the limiting clamping block 11. The groove 20 can be precisely matched with the limiting boss 10 and the limiting clamping block 11. Stable clamping is achieved by the pushing force of the push rod 16, ensuring that the boss is close to the notch 4 of the component 1 and the clamping block clamps the side of the component 1. The third spring 19 continuously pushes the limiting push block 12 towards the component 1, so that the pushing block limiting groove 13 is close to the edge of the component 1, which improves the stability during welding.

[0028] Preferably, the support assembly further includes an arc-leading angle support device 22, which includes a positioning clamp 23 and a positioning clamp 23 driver. The positioning clamp 23 driver drives the positioning clamp 23 to open or close, and the end of the positioning clamp 23 forms a clamping cavity that is adapted to the shape of the arc-leading angle 3 when it is closed.

[0029] In this embodiment, the positioning clamp 23 closes to form a clamping cavity that matches the shape of the arc-starting angle 3, preventing the arc-starting angle 3 from shifting when the clamping component is clamped or during welding; the positioning clamp 23 driver automatically drives the positioning clamp 23 to open and close, eliminating the need for manual adjustment of the fixed arc-starting angle 3 and simplifying the clamping process.

[0030] Preferably, the two electrodes 29 include a first electrode 30, a second electrode 31, a first electrode holder 32 and a second electrode holder 33 for mounting the corresponding electrodes 29, and an electrode holder driver 34; the electrode holder driver 34 drives the first electrode 30 to move closer to or away from the second electrode 31.

[0031] In this embodiment, the first electrode 30 is used as a moving electrode and the second electrode 31 is used as a fixed electrode, which simplifies the design structure. The electrode holder driver 34 drives the first electrode 30 to move closer to or away from the second electrode 31, which can flexibly adjust the distance between the two electrodes 29 to adapt to the width of different components 1, avoid the problem that the electrodes 29 cannot fit due to the size difference of the components 1, and expand the applicability of the device.

[0032] Furthermore, the frame 5 is also provided with a base track 35, a component base 36 disposed on the base track 35, and a base driver 37 connected to the component base 36; the component support device 8 is disposed on the component base 36, and the base driver 37 drives the component base 36 to move on the base track 35 and moves the component support device 8 away from or closer to the two electrodes 29.

[0033] In this embodiment, before welding, the component 1 to be welded is fixed on the component support device 8, and the base driver 37 drives the component base 36 to move on the base track 35 and moves the component support device 8 to the welding position between the two electrodes 29; reducing manual intervention, the operation is basically fully automated.

[0034] Preferably, the component base 36 includes a fixed base 38 and a movable base 39 connected to the fixed base 38. The fixed base 38 is provided with a guide rod 40 for the movable base 39 to move. The movable base 39 moves along the guide rod 40 in a direction perpendicular to the driving direction of the base driver 37. The fixed base 38 is provided with an adjustment buffer 41 that abuts against the movable base 39. An adjustment spring 42 is provided between the guide rod 40 and the fixed base 38.

[0035] In this embodiment, the welding work can be better completed by adjusting the position of the movable seat 39 on the guide rod 40 before welding; the adjusting buffer can prevent the movable seat 39 from shifting on the guide rod 40 during welding, thereby affecting the welding; the adjusting spring 42 and the adjusting buffer 41 work together to provide damping effect and stabilize the movement adjustment.

[0036] Furthermore, the support assembly also includes a contact support device 25, which includes a contact clamping driver 26, a track 27, and a pair of contact clamping members 28 mounted on the track 27; the contact clamping driver 26 drives the pair of contact clamping members 28 to close or separate; when the pair of contact clamping members 28 close, a contact 2 clamping cavity is formed that can clamp the contact 2.

[0037] In this embodiment, the pair of clamping parts close together to form a suitable clamping cavity for the contact 2, which can firmly fix the contact 2 and prevent the contact 2 from shifting when the clamping component is pressed or when welding. This ensures that the contact 2 is aligned with the preset welding position of the component 1 and prevents the plating from overheating or the welding gap from being caused by positional deviation. The arc-angle clamping part driver automatically controls the opening and closing of the clamping parts, eliminating the need for manual adjustment of the fixed contact 2.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A welding device for contact elements of a dual-power circuit breaker, characterized in that, The device includes a frame, a support assembly, a clamping assembly, and two electrodes. The support assembly, clamping assembly, and electrodes are all mounted on the frame. The support assembly is used to fix the component, contact, and arc-starting angle. The clamping assembly presses the arc-starting angle and contact against the component. The two electrodes are respectively positioned on both sides of the component and the arc-starting angle and contact, and the two electrodes work together to weld the arc-starting angle and contact to the component.

2. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 1, characterized in that, The clamping assembly includes two ceramic pressure rods and two pressure rod drivers. The pressure rod drivers drive the corresponding ceramic pressure rods to move toward the support assembly, and the two ceramic pressure rods correspond to the contact point and the arc-starting angle, respectively, and clamp them onto the element.

3. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 1, characterized in that, The support assembly further includes a component support device, which includes a component support platform, a limiting boss, a limiting clamp, and a limiting push block. The component support platform is used to place the component, and the limiting boss, limiting clamp, and limiting push block cooperate to limit the component. The limiting boss is located at a notch on the side of the component and is adapted to the notch. The limiting clamp is located on the side of the component to clamp the component. The component support platform is provided with a movable groove for the limiting push block to move. The limiting push block is provided with a limiting groove for the component to be inserted and adapted to it. The limiting groove is used to limit the arc angle and prevent the component from tilting when the contact is pressed.

4. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 3, characterized in that, A control module is provided on one side of the component support platform. The control module includes a push rod driver and a push rod mounted on the output shaft of the push rod driver. The push rod cooperates with the limiting boss and the limiting clamping block. The push rod driver is used to drive the push rod to control the tightness between the limiting boss and the limiting clamping block and the component.

5. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 4, characterized in that, The component support platform is provided with a first spring, a second spring, and a third spring. The first and second springs respectively push the limiting boss and the limiting clamping block away from the component support platform. The part of the push rod that abuts against the limiting boss and the limiting clamping block is provided with a groove, and a guide slope is provided on the push rod at the position corresponding to the groove. The first and second springs push the limiting boss and the limiting clamping block out, and a part of the limiting boss and the limiting clamping block will enter the groove. When the push rod moves, the guide slope on the push rod can push the limiting boss and the limiting clamping block tightly towards the spring. The third spring pushes the limiting push block towards the component.

6. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 3, characterized in that, The support assembly further includes an arc-leading angle support device, which includes a positioning clamp and a positioning clamp driver. The positioning clamp driver drives the positioning clamp to open or close, and the end of the positioning clamp forms an arc-leading angle clamping cavity that matches the shape of the arc-leading angle when closed.

7. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 1, characterized in that, The two electrodes include a first electrode, a second electrode, a first electrode holder and a second electrode holder for mounting the corresponding electrodes, and an electrode holder driver; the electrode holder driver drives the first electrode to move closer to or away from the second electrode.

8. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 3, characterized in that, The frame is also provided with a base track, a component base set on the base track, and a base driver connected to the component base; the component support device is set on the component base, and the base driver drives the component base to move on the base track and moves the component support device away from or closer to the two electrodes.

9. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 8, characterized in that, The component base includes a fixed base and a movable base connected to the fixed base. The fixed base is provided with a guide rod for the movable base to move. The movable base moves along the guide rod in a direction perpendicular to the driving direction of the base driver. The fixed base is provided with an adjustment buffer that abuts against the movable base. An adjustment spring is provided between the guide rod and the fixed base.

10. The welding apparatus for the contact elements of a dual-power circuit breaker according to claim 3 or 9, characterized in that, The support assembly further includes a contact support device, which includes a contact clamping driver, a track, and a pair of contact clamping members mounted on the track; the contact clamping driver drives the pair of contact clamping members to close or separate; when the pair of contact clamping members close, a contact clamping cavity is formed that can clamp the contacts.

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