Pressing plate hardware fitting installation transverse groove machining device for electrified railway cantilever insulator

Abstract

The embodiment of the utility model provides an electrified railway cantilever insulator pressure plate fitting installation transverse groove processing device, including clamping mechanism and cutter mechanism, clamping mechanism includes bottom plate, first locating piece, second locating piece and pushing cylinder, first locating piece is fixed on the bottom plate, second locating piece is movably arranged on the bottom plate, and the pushing cylinder is fixed on the bottom plate. The inner sides of the two positioning blocks are opposite and are provided with arc-shaped grooves; the inward extension length of the top of each arc-shaped groove is smaller than that of the bottom of each arc-shaped groove; the telescopic end of the pushing cylinder is connected with the outer side of the second positioning block; the cutter mechanism comprises a three-jaw chuck and a cutter, the cutter comprises a cutter shaft and two disc cutters on the cutter shaft, and the rear end of the cutter shaft is clamped on the three-jaw chuck; and the width and the distance between the two disc cutters are consistent with the groove width and the distance between the two mounting transverse grooves. By the adoption of the technical scheme, the machining technology of the cantilever installation transverse groove can be optimized, production efficiency is improved, and product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of power fittings manufacturing technology, specifically to a device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways. Background Technology

[0002] Composite insulators for electrified railways are a type of insulator product with a compact structure, strong integrity, good anti-pollution ability, light weight, small size, good internal and external insulation performance, high mechanical strength, and no need for regular cleaning. They have been widely used in the power supply system of electrified railway contact networks, making a significant contribution to the safe operation of railway systems and the rapid development of the economy and society.

[0003] The cantilever insulator is a type of composite insulator used in electrified railways, and its cantilever structure is as follows: Figure 1 and Figure 2 As shown, the outer circumference of the front end of the cantilever arm has two mounting slots for mounting pressure plate hardware, and also has two pin holes. The cantilever arm structure is typically machined using a milling and turning compound and machining center equipment, with a stepped end mill sequentially milling the chips. This machining method is limited by the rigidity of the end mill, resulting in low machining efficiency and slow clamping speed, affecting product production efficiency. Furthermore, it requires a high level of skill from the operator. Utility Model Content

[0004] To better address the aforementioned issues, this utility model provides a processing device for the horizontal groove of the pressure plate fitting for the cantilever insulator of electrified railway, which can optimize the processing technology of the horizontal groove for cantilever installation and improve production efficiency.

[0005] To achieve the above objectives, this utility model provides a device for machining transverse grooves for mounting pressure plate fittings on cantilever insulators of electrified railways. The device includes a clamping mechanism and a cutting tool mechanism. The clamping mechanism includes a base plate, a first positioning block, a second positioning block, and a push cylinder. The first positioning block is fixedly mounted on the base plate, and the second positioning block is movably mounted on the base plate. The inner sides of the two positioning blocks are opposite each other and each has an arc-shaped groove that matches the outer circle of the cantilever arm to be machined. The inward extension length of the top of the arc-shaped groove is less than the inward extension length of the bottom, so that the two positioning blocks fit snugly against each other. When machining the outer diameter of the arm to be machined, two mounting slots are exposed; the telescopic end of the push cylinder is connected to the outer side of the second positioning block, which is used to push the second positioning block toward the first positioning block or to drive the second positioning block away from the first positioning block; the tool mechanism includes a three-jaw chuck and a tool, the tool includes a cutter shaft and two disc cutters, the rear end of the cutter shaft is locked on the three-jaw chuck, and the two disc cutters are sleeved on the front part of the cutter shaft; the width of the two disc cutters is consistent with the width of the two mounting slots, and the distance between the two disc cutters is consistent with the distance between the two mounting slots.

[0006] Optionally, positioning pins are provided on the inner sides of the two arc-shaped grooves, which cooperate with the pin holes on both sides of the outer circle of the arm to be processed.

[0007] Optionally, the clamping mechanism further includes a first mounting plate, which is vertically fixed to the base plate, and the outer side of the first positioning block is fixedly connected to the inner side of the first mounting plate.

[0008] Optionally, a support rib is provided on the outer side of the first mounting plate.

[0009] Optionally, the clamping mechanism also includes a second mounting plate, which is vertically fixed to the base plate. The second positioning plate is provided with a through hole, and the telescopic rod of the push cylinder passes through the through hole from the outside of the second positioning plate and connects to the outside of the second positioning block.

[0010] Optionally, the second mounting plate is provided with support ribs on both the inner and outer sides.

[0011] Optionally, the tool mechanism also includes a center that rests on the front end of the tool shaft.

[0012] The transverse groove machining device for mounting pressure plate fittings of electrified railway cantilever insulators according to this utility model can quickly and accurately complete the clamping and fixing of the workpiece by setting a fixed positioning block and a movable positioning block driven by a cylinder on the base plate, and setting an arc-shaped groove between the two positioning blocks that matches the outer circle of the workpiece; by setting a cutting tool with two disc cutters to perform transverse groove machining, two mounting transverse grooves can be machined in one go, and the two mounting transverse grooves are consistent.

[0013] This processing device has the advantages of simple structure, reliable performance and convenient operation. It can quickly clamp and fix the workpiece and take it out. It can process two mounting slots at one time, thereby greatly improving production efficiency, saving production costs and ensuring product quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the wrist arm of the wrist arm insulator according to an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the wrist arm of the wrist arm insulator according to an embodiment of the present utility model;

[0017] Figure 3This is a schematic diagram of the structure of the transverse groove processing device for mounting pressure plate fittings for cantilever insulators of electrified railways, according to an embodiment of this utility model.

[0018] Figure 4 This is a right view of the transverse groove processing device for mounting pressure plate fittings for cantilever insulators of electrified railways, according to an embodiment of this utility model.

[0019] Figure label:

[0020] 1. Base plate; 2. First mounting plate; 3. Second mounting plate; 4. First positioning block; 5. Second positioning block; 6. Push cylinder; 7. Pin; 8. Support rib; 9. Three-jaw chuck; 10. Disc cutter; 11. Cutter shaft; 12. Center; 13. Workpiece; 14. Pin hole; 15. Mounting cross groove. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figure 3 and Figure 4 As shown in the figure, the transverse groove machining device for mounting pressure plate fittings of electrified railway cantilever insulators according to this utility model includes a clamping mechanism and a cutting tool mechanism. The clamping mechanism is used to clamp the workpiece to be machined (cantilever blank, with two machined parts of mounting transverse grooves 15 and two opposite pin holes 14 on the outer circle), and the cutting tool mechanism is used to install and drive the cutting tool for machining the mounting transverse grooves.

[0024] The clamping mechanism includes a base plate 1, a first positioning block 4, a second positioning block 5, and a push cylinder 6. The first positioning block 4 is fixedly mounted on the base plate 1, and the second positioning block 5 is movably mounted on the base plate 1. The inner sides of the two positioning blocks are opposite each other and each has an arc-shaped groove that matches the outer circle of the arm to be processed. The inward extension length of the top of the arc-shaped groove is less than the inward extension length of the bottom, so that when the two positioning blocks are close to the outer circle of the arm to be processed, the processing parts of the two mounting transverse grooves 15 are exposed. The telescopic end of the push cylinder 6 is connected to the outer side of the second positioning block 5 and is used to push the second positioning block 5 toward the first positioning block 4 or to drive the second positioning block 5 away from the first positioning block 4.

[0025] Workpiece 13 can be clamped and fixed by the arc-shaped grooves in two positioning blocks. The first positioning block 4 is fixedly installed, and the second positioning block 5 moves closer to or further away from the first positioning block 4 under the extension and retraction of the push cylinder 6. When no workpiece is placed, the push cylinder 6 is in a retracted state, providing a large space for workpiece loading and unloading between the two positioning blocks. When the workpiece is placed, the push cylinder 6 is in an extended state, so that the inner sides of the two positioning blocks are tightly against the outer circle of workpiece 13, thus clamping and fixing workpiece 13. The operation is simple and requires low skill level and proficiency from the operator. The arc-shaped inner wall of the arc-shaped groove on the inner side of the two positioning blocks is consistent with the shape of the corresponding arc-shaped part on the outer circle of workpiece 13, ensuring that the arc-shaped groove can tightly adhere to workpiece 13. The bottom of the arc-shaped groove is longer than the top. When the arc-shaped groove is against the outer circle of workpiece 13, the inner end of the top is located outside the part of the horizontal groove 15 to be machined on workpiece 13, ensuring that the machining part of the horizontal groove 15 is exposed between the tops of the two arc-shaped grooves when against workpiece 13, facilitating milling. Here, the inner side refers to the side closest to the center of the workpiece (or the workpiece placement position), and the outer side refers to the side furthest from the center of the workpiece.

[0026] The tooling mechanism includes a three-jaw chuck 9 and a tooling unit. The tooling unit includes a cutter shaft 11 and two disc cutters 10. The rear end of the cutter shaft 11 is secured to the three-jaw chuck 9, and the two disc cutters 10 are fitted onto the front of the cutter shaft 11. The two disc cutters 10 can be rotated simultaneously by driving the three-jaw chuck 9 to machine two mounting transverse grooves 15 on the workpiece 13 at the same time. In practical applications, this tooling mechanism is designed according to the specifications and dimensions of the workpiece. The width of the two disc cutters 10 is consistent with the width of the two mounting transverse grooves 15, and the distance between the two disc cutters 10 is consistent with the distance between the two mounting transverse grooves 15.

[0027] In one optional embodiment, the arc-shaped grooves of the two positioning blocks also have a positioning function. Positioning pins are provided on the inner side of the arc-shaped grooves to engage with the pin holes 14 on both sides of the workpiece's outer diameter for positioning when the workpiece 13 is clamped. Here, the position of the positioning pins matches the position and size of the two corresponding pin holes 14 on the workpiece's outer diameter. When the two positioning blocks approach and clamp the workpiece 13, the positioning pins can be inserted into the corresponding pin holes 14 to achieve positioning of the workpiece 13, preventing workpiece misalignment and ensuring the accuracy of the machined and installed transverse groove position.

[0028] Optionally, the clamping mechanism includes a first mounting plate 2, which is vertically fixedly mounted on the base plate 1. The outer side of the first positioning block 4 is fixedly connected to the inner side of the first mounting plate 2, thereby providing stable support for the first positioning block 4. Further, a support rib 8 is provided on the outer side of the first mounting plate 2. The support rib 8 can be a triangular rib, with its lower side fixedly connected to the base plate 1 and its left side fixedly connected to the outer side of the first mounting plate 2. The support rib 8 further enhances the installation stability of the first mounting plate 2.

[0029] Optionally, the clamping mechanism further includes a second mounting plate 3, which is vertically fixed on the base plate 1. A through hole is provided on the second positioning plate, allowing the push cylinder 6 to be installed on the outer side of the second mounting plate 3. Its telescopic rod passes through the through hole from the outer side of the second positioning plate and connects to the outer side of the second positioning block 5, thus providing stable support for the push cylinder 6 through the second mounting plate 3. Furthermore, support ribs 8 are provided on both the inner and outer sides of the second mounting plate 3, enhancing the installation stability of the second mounting plate 3.

[0030] According to an exemplary embodiment of the present invention, the processing device further includes a tool driving mechanism. The tool driving mechanism may include a robotic arm, a slide on a machine tool, a cylinder, or other feeding device capable of driving the tool mechanism to move. By connecting the three-jaw chuck 9 to the feeding device, after the workpiece 13 is placed and clamped, the device can be used to move the three-jaw chuck 9 to align the two disc cutters 10 with the two mounting slots 15 of the workpiece 13 for processing. In addition, the tool driving mechanism may also include a motor or other driving device that drives the three-jaw chuck 9 (driving the cutter shaft 11 and the disc cutters on it) to rotate. This device is used to drive the disc cutters 10 to rotate and perform milling when the two disc cutters 10 move to the working position. In conjunction with the feeding device, the two mounting slots 15 can be processed simultaneously.

[0031] In one optional embodiment, when using this device to perform the installation of transverse grooves, firstly, in the preparation stage, the components of the device are set up and assembled according to the specifications and dimensions of the workpiece to be processed. Then, the device is installed on the machine tool by fixing the base plate 1 to the machine tool platform and fixing the tool mechanism (including its drive device) to the machine tool slide. Here, the disc cutter 10 is aligned with the transverse groove processing part of the workpiece 13, and is driven by the slide to move up and down to achieve feed and retraction. Then, in the workpiece clamping stage, the workpiece blank is placed into the workpiece 13 with the two installation transverse groove processing parts facing upwards and the two pin holes 14 horizontally facing both sides. The push cylinder 6 is activated to extend and drive the second positioning block 5 to move towards the first positioning block 4 to clamp the workpiece 13, completing the positioning and clamping of the workpiece 13. Then, in the transverse groove processing stage, the machine tool slide is started to feed and the drive device is started. The disc cutter 10 rotates to complete the milling, and the two installation transverse grooves 15 are processed in one go. Then, the slide and cylinder are retracted to remove the processed workpiece 13. By changing the workpiece and repeating the workpiece clamping and cross-grooving steps, batch production operations of workpiece installation and cross-grooving can be carried out.

[0032] In practical application scenarios, the components such as the base plate 1, mounting plate, positioning block, support rib plate 8, and disc cutter 10 in the electrified railway cantilever insulator pressure plate fitting installation transverse groove processing device of this utility model embodiment can be designed with specific shapes and sizes according to the specifications and models of the cantilever and its installation transverse groove to be processed in the actual working conditions. The three-jaw chuck 9, cylinder and other components can adopt existing equipment with corresponding functions and specifications in the prior art according to the component size and driving force requirements in the actual working conditions.

[0033] Furthermore, the transverse groove machining device for mounting pressure plate fittings for electrified railway cantilever insulators can also be equipped with other devices or components, or the actual installation positions of each device or component can be adjusted to achieve the practical application or other functions of the ear hole drilling device. For example, optionally, the tool mechanism also includes a center member 12, which is mounted on the front side of the cutter shaft 11 and abuts against the front end of the cutter shaft 11 to firmly hold the cutter shaft 11 and prevent the cutter shaft 11 from being misaligned during machining operations; of course, the center member 12 is also equipped with a mounting support mechanism that enables the center member 12 to be installed stably and can move synchronously with the feed device driving the tool.

[0034] Depending on the implementation needs, the various components of the ear-drilling device described in the embodiments of this utility model can be disassembled into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0035] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for processing transverse grooves for mounting pressure plate fittings on cantilever insulators of electrified railways, characterized in that, The device includes a clamping mechanism and a cutting tool mechanism. The clamping mechanism includes a base plate, a first positioning block, a second positioning block, and a push cylinder. The first positioning block is fixedly mounted on the base plate, and the second positioning block is movably mounted on the base plate. The inner sides of the two positioning blocks are opposite to each other and each has an arc-shaped groove that matches the outer circle of the arm to be processed. The inward extension length of the top of the arc-shaped groove is less than the inward extension length of the bottom, so that when the two positioning blocks are close to the outer circle of the arm to be processed, two processing parts for mounting transverse grooves are exposed. The telescopic end of the push cylinder is connected to the outer side of the second positioning block and is used to push the second positioning block toward the first positioning block or to move the second positioning block away from the first positioning block. The cutting tool mechanism includes a three-jaw chuck and a cutting tool. The cutting tool includes a cutting shaft and two disc cutters. The rear end of the cutting shaft is clamped on the three-jaw chuck, and the two disc cutters are sleeved on the front part of the cutting shaft. The width of the two disc cutters is consistent with the width of the two mounting slots, and the distance between the two disc cutters is consistent with the distance between the two mounting slots.

2. The device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways according to claim 1, characterized in that, The inner sides of the two arc-shaped grooves are provided with positioning pins, which cooperate with the pin holes on both sides of the outer circle of the arm to be processed.

3. The device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways according to claim 1, characterized in that, The clamping mechanism further includes a first mounting plate, which is vertically fixed to the base plate, and the outer side of the first positioning block is fixedly connected to the inner side of the first mounting plate.

4. The device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways according to claim 3, characterized in that, The outer side of the first mounting plate is provided with a support rib.

5. The device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways according to claim 1, characterized in that, The clamping mechanism also includes a second mounting plate, which is vertically fixed to the base plate. The second positioning plate is provided with a through hole, and the telescopic rod of the push cylinder passes through the through hole from the outside of the second positioning plate and connects to the outside of the second positioning block.

6. The transverse groove processing device for mounting pressure plate fittings for cantilever insulators in electrified railways according to claim 5, characterized in that, The second mounting plate has supporting ribs on both its inner and outer sides.

7. The device for processing transverse grooves for mounting pressure plate fittings of cantilever insulators in electrified railways according to claim 1, characterized in that, The cutting tool mechanism also includes a center point, which rests on the front end of the cutting shaft.

Images