A clamping and positioning mechanism for copper bar arc milling

Abstract

The utility model discloses a kind of clamping positioning mechanisms for copper bar arc milling, it is related to copper bar processing technical field, specifically for a kind of clamping positioning mechanisms for copper bar arc milling, including milling machine and the rotatable setting on milling machine's rotating disc, the upper surface of the rotating disc is fixedly connected with clamping bottom plate, the upper surface of the clamping bottom plate is provided with two mutually close or far away auxiliary U-shaped plate, the auxiliary U-shaped plate is provided with the extruding plate that can move up and down, and every auxiliary U-shaped plate left and right two sides are provided with the clamping component that can be moved synchronously with auxiliary U-shaped plate, by the sliding cooperation of auxiliary slide and slide, the setting of second guide column, connecting crosspiece, limiting cylinder, limiting groove and tension spring constitute clamping component, the flexible adjustment and firm fixation of auxiliary U-shaped plate position can be realized, the clamping needs of different length specifications copper bar are adapted, and effectively avoid the displacement of auxiliary U-shaped plate due to vibration in milling process.

Description

Technical Field

[0001] This utility model relates to the field of copper busbar processing technology, specifically a clamping and positioning mechanism for arc milling of copper busbars. Background Technology

[0002] Copper busbars, also known as copper busbars or copper busbars, are conductive components made of pure copper. In power circuits, they primarily function to transmit current and connect various electrical devices. Due to copper's superior electrical conductivity, thermal conductivity, and mechanical strength compared to aluminum, copper busbars are widely used in electrical equipment, especially in complete power distribution systems. Their core applications are concentrated in primary lines (i.e., high-voltage, high-current lines in a power system that directly transmit or distribute electrical energy). Whether it's the phase wire, neutral wire, or ground wire in a circuit, copper busbars are used as the conductive carrier whenever high current transmission is involved. In actual power distribution scenarios, such as in electrical cabinet systems, the connection between primary components carrying large currents (such as disconnect switches, circuit breakers, contactors, etc.) relies on copper busbars. Specifically, when multiple electrical cabinets transmit current between cabinets, a main busbar is used. When the main busbar distributes current to the various switching devices within each cabinet, branch busbars are used for precise connections, forming a complete current distribution network. From the perspective of electrical safety and performance stability, copper busbars must be processed to avoid sharp-point discharge. When a conductor has sharp edges, the local electric field strength increases sharply, easily causing air ionization. This not only leads to energy loss but may also generate electric arcs, and in severe cases, even equipment failure or safety accidents. Therefore, to eliminate this hidden danger, copper busbars with original rectangular or chamfered rectangular cross-sections are usually machined into rounded rectangles using specialized milling equipment. This ensures a smooth transition at the edges of the copper busbar, effectively reducing the local electric field strength and ensuring safe circuit operation. However, in actual production and application, copper busbar specifications exhibit significant diversity: on the one hand, the length of copper busbars varies greatly depending on the current requirements and installation space limitations of different power distribution scenarios; on the other hand, to meet different conductivity and mechanical support requirements, the thickness specifications of copper busbars are also very diverse, ranging from a few millimeters to tens of millimeters, and even thicker customized copper busbars are used in some special scenarios. This diversity of specifications has brought great inconvenience to the clamping operation in the existing copper busbar processing and installation process. Most existing clamping devices are designed with fixed dimensions and can only be adapted to copper busbars of a certain specific specification. When faced with copper busbars of different lengths and thicknesses, they either cannot be clamped firmly, resulting in a decrease in processing accuracy or displacement of the copper busbar during installation; or they need to frequently replace clamping accessories, which not only increases the operation process and reduces work efficiency, but may also affect the clamping stability due to improper replacement of accessories, creating hidden dangers for the quality of subsequent processing or installation. Utility Model Content

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a clamping and positioning mechanism for arc milling of copper busbars, which solves the problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a clamping and positioning mechanism for arc milling of copper busbars, comprising a milling machine and a rotating disk mounted on the milling machine, wherein a clamping base plate is fixedly connected to the upper surface of the rotating disk, and two auxiliary U-shaped plates that can move closer or further apart are provided on the upper surface of the clamping base plate, wherein a pressing plate that can move up and down is provided inside the auxiliary U-shaped plate, and each auxiliary U-shaped plate has a locking component on both its left and right sides that can move synchronously with the auxiliary U-shaped plate, wherein both ends of the locking component can be locked into the clamping base plate.

[0005] Optionally, the upper surface of the clamping base plate is provided with a slide rail, and the lower surface of the auxiliary U-shaped plate is fixedly connected to an auxiliary slide plate. The auxiliary slide plate is slidably connected in the slide rail, and the snap-fit ​​component is installed on the upper surface of the auxiliary slide plate.

[0006] Optionally, the snap-fit ​​component includes a second guide post slidably connected to the upper surface of the auxiliary slide plate. Two connecting horizontal plates are fixedly connected to each other at the top of the second guide post, and a limiting cylinder is fixedly connected to the end of the connecting horizontal plate away from the second guide post. The bottom end of the limiting cylinder can be inserted into the clamping base plate.

[0007] Optionally, multiple limiting grooves are provided on the front and rear sides of the upper surface of the clamping base plate near the slide, and the bottom ends of the multiple limiting cylinders can be inserted into the corresponding limiting grooves.

[0008] Optionally, a tension spring is fixedly connected to the lower surface of each of the multiple connecting cross plates, and the end of the tension spring away from the connecting cross plate is fixedly connected to the auxiliary slide plate.

[0009] Optionally, the opening of the auxiliary U-shaped plate is parallel to the horizontal plane, and an adjusting bolt with one end rotatably connected to the center of the upper surface of the auxiliary U-shaped plate is provided. The left and right ends of the upper surface of the extrusion plate are fixedly connected to a first guide post with one end penetrating through the auxiliary U-shaped plate, and the first guide post is slidably connected to the auxiliary U-shaped plate.

[0010] Optionally, the lower surface of the extrusion plate and the inner bottom surface of the auxiliary U-shaped plate are both provided with anti-slip textures.

[0011] (III) Beneficial Effects This utility model provides a clamping and positioning mechanism for arc milling of copper busbars, which has the following advantages: This clamping and positioning mechanism for arc milling of copper busbars utilizes a combination of a sliding plate and slide rail, a second guide post, a connecting horizontal plate, a limiting cylinder, a limiting groove, and a tension spring to create a locking mechanism that assists in U-shaped milling. The flexible adjustment and stable fixing of the U-shaped plate position adapts to the clamping requirements of copper busbars of different lengths and specifications, and effectively avoids displacement of the auxiliary U-shaped plate due to vibration during milling. By adjusting the threaded transmission of the bolts and the extrusion plate, and the sliding guide setting of the first guide post, the extrusion plate can be driven to rise and fall smoothly without rotation, adapting to the clamping operation of copper busbars of different thicknesses. At the same time, it avoids the extrusion plate offset from affecting the clamping accuracy. The anti-slip texture of the lower surface of the extrusion plate and the inner bottom surface of the auxiliary U-shaped plate enhances the friction between the copper busbar and the clamping components, further improving the stability of the copper busbar clamping. The fixed connection between the rotating disk and the clamping base plate can drive the copper busbar to rotate synchronously under the drive of the milling machine. With the above clamping structure, the precise positioning of the copper busbar arc milling is achieved. The whole process does not require the replacement of special clamping accessories, greatly simplifying the operation process and improving processing efficiency and quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the structure placed at point A in the middle.

[0013] In the diagram: 1. Milling machine; 2. Rotary disc; 3. Clamping base plate; 4. Auxiliary slide plate; 5. Auxiliary U-shaped plate; 6. Extrusion plate; 7. Adjusting bolt; 8. First guide post; 9. Second guide post; 10. Limiting cylinder; 11. Connecting cross plate; 12. Slide rail; 13. Limiting groove; 14. Tension spring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figures 1 to 3This utility model provides a technical solution: a clamping and positioning mechanism for arc milling of copper busbars, including a milling machine 1 and a rotating disk 2 that can be rotatably mounted on the milling machine 1. When the milling machine 1 starts working, it can drive the rotating disk 2 to rotate synchronously. Since the milling machine 1 and the rotating disk 2 are both existing mature technologies, their specific power transmission methods, drive structures and working principles will not be elaborated in detail here. A clamping base plate 3 is fixedly connected to the upper surface of the rotating disk 2. Two auxiliary U-shaped plates 5 that can move closer or further apart are provided on the upper surface of the clamping base plate 3. An extrusion plate 6 that can move up and down is provided inside the auxiliary U-shaped plate 5. Each auxiliary U-shaped plate 5 has a snap-fit ​​component on its left and right sides that can move synchronously with the auxiliary U-shaped plate 5. The two ends of the snap-fit ​​component can snap into the clamping base plate 3.

[0016] Please see Figure 2 The upper surface of the clamping base plate 3 is provided with a slide rail 12, and the lower surface of the auxiliary U-shaped plate 5 is fixedly connected with an auxiliary slide plate 4. The auxiliary slide plate 4 is slidably connected in the slide rail 12, and the snap-fit ​​component is installed on the upper surface of the auxiliary slide plate 4. Therefore, when the auxiliary slide plate 4 slides along the preset trajectory of the slide rail 12, it can not only drive the auxiliary U-shaped plate 5 to move synchronously, but also drive the locking component to move synchronously during the movement of the auxiliary slide plate 4, ensuring that the three maintain consistent action during the displacement process, and providing a stable linkage basis for subsequent clamping operations.

[0017] Please see Figures 2 to 3 The snap-fit ​​component includes a second guide post 9 that is slidably connected to the upper surface of the auxiliary slide plate 4. The second guide post 9 can move up and down on the auxiliary slide plate 4. Two connecting horizontal plates 11 are fixedly connected to each other at the top of the second guide post 9. A limiting cylinder 10 is fixedly connected to the end of the connecting horizontal plate 11 away from the second guide post 9. The bottom end of the limiting cylinder 10 can be inserted into the clamping base plate 3. Therefore, when the operator pulls the second guide column 9 upward, the rigid connection of the connecting horizontal plate 11 can directly drive the limiting cylinder 10 to move upward synchronously, ensuring that the two maintain consistent movement during the displacement process. Multiple limiting grooves 13 are respectively provided on the front and rear sides of the upper surface of the clamping base plate 3 near the slide 12, and the bottom ends of multiple limiting cylinders 10 can be inserted into the corresponding limiting grooves 13. A tension spring 14 is fixedly connected to the lower surface of multiple connecting horizontal plates 11, and the end of the tension spring 14 away from the connecting horizontal plate 11 is fixedly connected to the auxiliary slide plate 4; Therefore, when the connecting horizontal plate 11 moves upward, it will simultaneously drive the tension spring 14 to undergo tensile deformation. At this time, the limiting cylinder 10 will also break away from the constraint of the limiting groove 13. In this state, the operator can flexibly adjust the position of the auxiliary U-shaped plate 5 on the clamping base plate 3 to adapt to the clamping requirements of copper busbars of different specifications. Once the position of the auxiliary U-shaped plate 5 is adjusted and confirmed, the operator can release the force applied to the connecting horizontal plate 11. At this time, the tension spring 14, which is under tension, will quickly release its stored elastic potential energy. Under the action of the elastic force, it will pull the connecting horizontal plate 11 to move downward in the vertical direction, and at the same time drive the limiting cylinder 10 to move downward synchronously. Finally, the limiting cylinder 10 will be accurately engaged in another set of limiting grooves 13 at the corresponding position. In addition, thanks to the elastic tension continuously provided by the tension spring 14, the limiting cylinder 10 can always maintain a tight engagement with the limiting groove 13, effectively avoiding loosening of the engagement due to vibration or external interference, ensuring the stability of the fixed position of the auxiliary U-shaped plate 5, and providing a reliable guarantee for the subsequent copper busbar clamping operation.

[0018] Please see Figures 2 to 3 The opening of the auxiliary U-shaped plate 5 is parallel to the horizontal plane (e.g., Figure 2 As shown, an adjusting bolt 7 is threadedly connected to the center of the upper surface of the auxiliary U-shaped plate 5, with one end rotatably connected inside the extrusion plate 6. A first guide post 8, with one end penetrating through the auxiliary U-shaped plate 5, is fixedly connected to both the left and right ends of the upper surface of the extrusion plate 6. The first guide post 8 is slidably connected to the auxiliary U-shaped plate 5. Therefore, when the adjusting bolt 7 rotates, it applies a vertical force to the extrusion plate 6 only through threaded transmission, and the first guide post 8 forms an effective rotational constraint on the extrusion plate 6. Thus, it will not cause the extrusion plate 6 to rotate synchronously, ensuring that the extrusion plate 6 always remains in a horizontal state for raising and lowering. The lower surface of the extrusion plate 6 and the inner bottom surface of the auxiliary U-shaped plate 5 are both provided with anti-slip textures; Therefore, when the operator rotates the adjusting bolt 7, the adjusting bolt 7 will move up and down on the auxiliary U-shaped plate 5, and the extrusion plate 6 will adjust its position in the vertical direction (moving upward can increase the clamping space, and moving downward can reduce the clamping space). During this process, in order to ensure the stability of the movement trajectory of the extrusion plate 6, the first guide post 8 will slide up and down along the preset guide hole on the auxiliary U-shaped plate 5, which effectively prevents the extrusion plate 6 from shifting or tilting due to force. This clamping and positioning mechanism for arc milling of copper busbars can flexibly adapt to copper busbars of different thicknesses and specifications. By simply rotating the adjusting bolt 7 to control the lifting and lowering of the extrusion plate 6, the copper busbar can be stably clamped without the need to replace special clamping accessories, which greatly simplifies the operation process and provides great convenience for operators.

[0019] In summary, when using this clamping and positioning mechanism for arc milling of copper busbars, the operator can first place the copper busbar to be processed on the inner bottom surface of the two auxiliary U-shaped plates 5, then pull the second guide post 9 upward to disengage the limiting cylinder 10 from the limiting groove 13, slide the auxiliary slide plate 4 along the slide rail 12 to adjust the distance between the two auxiliary U-shaped plates 5 until it matches the length of the copper busbar, then release the second guide post 9, the tension spring 14 releases its elastic potential energy to drive the limiting cylinder 10 into the corresponding limiting groove 13, thus fixing the position of the auxiliary U-shaped plates 5. Then, rotate the adjusting bolt 7, so that the adjusting bolt 7 will move up and down on the auxiliary U-shaped plates 5, driving the extrusion plate 6 to move synchronously. The first guide post 8 slides synchronously to ensure the smooth displacement of the extrusion plate 6 until the extrusion plate 6 and the inner bottom surface of the auxiliary U-shaped plates 5 cooperate to clamp the copper busbar. The anti-slip texture further enhances the clamping stability. Finally, start the milling machine 1, the rotating disk 2 drives the clamping base plate 3 and the fixed copper busbar to rotate synchronously, and the arc milling of the copper busbar can be carried out.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping and positioning mechanism for arc milling of copper busbars, comprising a milling machine (1) and a rotating disk (2) rotatably mounted on the milling machine (1), characterized in that: The upper surface of the rotating disk (2) is fixedly connected to a clamping base plate (3). The upper surface of the clamping base plate (3) is provided with two auxiliary U-shaped plates (5) that can move closer or further away from each other. The auxiliary U-shaped plates (5) are provided with a pressing plate (6) that can move up and down. Each auxiliary U-shaped plate (5) is provided with a snap-fit ​​component on both the left and right sides that can move synchronously with the auxiliary U-shaped plate (5). The two ends of the snap-fit ​​component can be snapped into the clamping base plate (3).

2. The clamping and positioning mechanism for arc milling of copper busbars according to claim 1, characterized in that: The upper surface of the clamping base plate (3) is provided with a slide rail (12), and the lower surface of the auxiliary U-shaped plate (5) is fixedly connected with an auxiliary slide plate (4). The auxiliary slide plate (4) is slidably connected in the slide rail (12), and the snap-fit ​​component is installed on the upper surface of the auxiliary slide plate (4).

3. The clamping and positioning mechanism for arc milling of copper busbars according to claim 2, characterized in that: The snap-fit ​​component includes a second guide post (9) that is slidably connected to the upper surface of the auxiliary slide plate (4). The top of the second guide post (9) is fixedly connected to two connecting horizontal plates (11), and a limiting cylinder (10) is fixedly connected to one end of the connecting horizontal plate (11) away from the second guide post (9). The bottom end of the limiting cylinder (10) can be inserted into the clamping base plate (3).

4. The clamping and positioning mechanism for arc milling of copper busbars according to claim 3, characterized in that: Multiple limiting grooves (13) are respectively provided on the front and rear sides of the upper surface of the clamping base plate (3) near the slide (12), and the bottom ends of the multiple limiting cylinders (10) can be inserted into the corresponding limiting grooves (13).

5. The clamping and positioning mechanism for arc milling of copper busbars according to claim 3, characterized in that: Each of the connecting horizontal plates (11) has a tension spring (14) fixedly connected to its lower surface. The end of the tension spring (14) away from the connecting horizontal plate (11) is fixedly connected to the auxiliary sliding plate (4).

6. The clamping and positioning mechanism for arc milling of copper busbars according to claim 1, characterized in that: The opening of the auxiliary U-shaped plate (5) is parallel to the horizontal plane. The center of the upper surface of the auxiliary U-shaped plate (5) is connected to an adjusting bolt (7) that is rotatably connected to the extrusion plate (6). The left and right ends of the upper surface of the extrusion plate (6) are fixedly connected to a first guide post (8) that passes through the auxiliary U-shaped plate (5), and the first guide post (8) and the auxiliary U-shaped plate (5) are slidably connected.

7. The clamping and positioning mechanism for arc milling of copper busbars according to claim 6, characterized in that: The lower surface of the extrusion plate (6) and the inner bottom surface of the auxiliary U-shaped plate (5) are both provided with anti-slip textures.

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