Machining tool for shell iron core

Abstract

The utility model relates to the technical field of shell iron core machining, and discloses a shell iron core machining tool which comprises a base plate divided into an area I and an area II. The assembly mounted in the area I comprises a first mounting plate and a second mounting plate which are both vertically mounted on the base plate, and a first center positioning pin and a first rotary positioning pin are mounted on the surface, facing the second mounting plate, of the first mounting plate; a pressure head corresponding to the first central positioning pin in position is movably mounted on the second mounting plate; the assembly mounted in the area II comprises a second central positioning pin and a second rotary positioning pin; the second center positioning pin is a hollow pin, the hollow part of the second center positioning pin is movably provided with a draw-in bolt, and a movable pressing plate is movably arranged between the draw-in bolt and the second center positioning pin; the mounting positions of the first center positioning pin, the first rotary positioning pin, the second center positioning pin and the second rotary positioning pin are matched with limiting points required when the shell iron core is machined; the tool is reasonable in structural layout, accurate in positioning, convenient to operate and high in machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of shell iron core processing, and particularly relates to a processing tooling for a shell iron core. Background Art

[0002] The shell iron core is usually of a cylindrical structure, and the processing mainly involves drilling on the top surface and the side surface. The existing processing toolings for top surface processing and side surface processing are two independent toolings. When processing the same shell iron core, the tooling needs to be switched twice. Moreover, after switching the tooling, secondary positioning of the tooling and the operating equipment is required, resulting in long positioning time, low processing efficiency, low precision, and inability to continuously ensure high-quality processing. In addition, when processing 4 positions M6 of the shell iron core, drilling and die sleeve are required. One person operates one machine, and multiple people and multiple machines are needed for batch processing, resulting in low processing efficiency and high investment in labor and equipment costs. Summary of the Utility Model

[0003] The utility model aims to provide a processing tooling for a shell iron core to solve the technical problem of low processing efficiency caused by the unreasonable structure of the existing processing tooling for the shell iron core.

[0004] The basic scheme provided by the utility model is as follows: A processing tooling for a shell iron core, which is connected to and used with an equipment operation table, includes a substrate divided into area Ⅰ and area Ⅱ, components installed in area Ⅰ, and components installed in area Ⅱ;

[0005] The components in area Ⅰ include a first mounting plate and a second mounting plate both vertically installed on the substrate. Among them, the centers of the first mounting plate and the second mounting plate are aligned and parallel with a spacing. On the surface of the first mounting plate facing the second mounting plate, a first center positioning pin and a second rotary positioning pin are installed. A pressing head corresponding to the position of the first center positioning pin is movably installed on the second mounting plate;

[0006] The components in area Ⅱ include a second center positioning pin and a second rotary positioning pin installed on the substrate; the second center positioning pin is a hollow pin, and a tension bolt is movably installed in the hollow part thereof. A moving pressing plate is movably installed between the tension bolt and the second center positioning pin;

[0007] Among them, the installation positions of the first center positioning pin and the first rotary positioning pin match the limiting points required during the processing of the first surface of the shell iron core, and the installation positions of the second center positioning pin and the second rotary positioning pin match the limiting points required during the processing of the second surface of the shell iron core. Moreover, after the shell iron core is installed in any area, it does not interfere with all the components in the other area.

[0008] The working principle and advantages of the present utility model are as follows: The design of this tooling is simple in structure, with long service life of each component, convenient maintenance and replacement, and relatively low overall cost. This tooling is installed on the equipment operation platform (with a power source) through keys and bolts to ensure the installation accuracy, firmness and reliability of the overall tooling. Two processing areas are set on the same substrate, with reasonable area division and non-interference between partitioned processing. When machining two surfaces of the same shell iron core, the shell iron core is directly placed in the corresponding processing area, and the components in the area are used for direct positioning, without the need for tooling switching, repositioning of the tooling, and positioning between the tooling and the equipment. At the same time, it is connected to the power source through the mounting holes and tension bolts, and the positioning is ensured by the cooperation of the pressure head and the moving pressing plate during the processing, thereby improving the processing efficiency and accuracy and ensuring the processing quality. Utilizing the automatic tool change and high positioning accuracy of the numerical control equipment, it can quickly achieve multi-size processing of the same product while maintaining the processing position. For example, after the shell iron core is installed in Area II for top surface processing and positioning, 4 M6 threaded holes at 4 positions and 3 φ7 through holes at 3 positions can be processed at this position, and accurate positioning of 4-M6 coordinates can be achieved without using traditional drill jigs, thus enabling one person to operate multiple machines, improving production efficiency and processing accuracy, and saving processing costs. This design not only simplifies the operation process, but also greatly improves work efficiency and product quality, with significant economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The front view of a processing tooling for a shell iron core provided by an embodiment of the present utility model;

[0010] Figure 2 The left view of a processing tooling for a shell iron core provided by an embodiment of the present utility model;

[0011] Figure 3 The top view of a processing tooling for a shell iron core provided by an embodiment of the present utility model;

[0012] Figure 4 The structural schematic diagram of the tension bolt provided by an embodiment of the present utility model;

[0013] Figure 5 The structural schematic diagram of the moving pressing plate provided by an embodiment of the present utility model;

[0014] Figure 6 The front view of a processing tooling for a shell iron core (products are in both Area I and Area II processing positions) provided by an embodiment of the present utility model;

[0015] Figure 7 The top view of a processing tooling for a shell iron core (product is in the Area II processing position) provided by an embodiment of the present utility model;

[0016] Figure 8 For Figure 7 The partial view at position A. Specific implementation manners

[0017] The following is a more detailed description through specific implementation manners:

[0018] The markings in the attached drawings of the specification include: the second central positioning pin 1, the second rotary positioning pin 2, the cylinder 3 in area I, the pressing head 4, the first central positioning pin 5, the first rotary positioning pin 6, the tension bolt 7, the moving pressure plate 8, the base plate 9, the product 10, the first mounting plate 11, the second mounting plate 12, the triangular steel plate 13, and the cylinder 14 in area II.

[0019] The embodiment is basically as shown in the attached Figure 1 figures: A processing tool for the outer shell iron core includes a base plate 9; area I and area II are demarcated on the base plate 9. As Figure 3 shown, the area demarcation basically meets the requirement of non-overlap, ensuring that the area interval and the size of the base plate 9 are within a reasonable range, and also meeting the requirement that the components and processing in each area do not interfere with each other.

[0020] The components in area I include the first mounting plate 11 and the second mounting plate 12 that are both vertically installed on the base plate 9. In this embodiment, the first mounting plate 11 and the second mounting plate 12 are rectangular plates. In other embodiments, triangular steel plates 13 are installed on both the left and right sides of the first mounting plate 11 and the second mounting plate 12 to assist in supporting the first mounting plate 11 and the second mounting plate 12 and increase their rigidity.

[0021] Among them, the first central positioning pin 5 and the first rotary positioning pin 6 are installed on the first mounting plate 11. The installation positions of the first central positioning pin 5 and the first rotary positioning pin 6 on the first mounting plate 11 match the positioning points required for processing the first surface of the outer shell iron core. In this embodiment, the first surface is the side surface. The positioning points required for processing the side surface of the outer shell iron core include the center point and the first lateral point. The first central positioning pin 5 is installed at the center of the first mounting plate 11, that is, the axis of the first central positioning pin 5 passes through the center, corresponding to the center point among the positioning points required for processing the side surface of the outer shell iron core. The first central positioning pin 5 is used for the central positioning of the outer shell iron core; the installation position of the first rotary positioning pin 6 corresponds to the first lateral point among the positioning points required for processing the side surface of the outer shell iron core. The first rotary positioning pin 6 is used for the rotary positioning of the outer shell iron core; as Figure 2 shown, the first rotary positioning pin 6 is installed on the first mounting plate 11. The center distance L1 between the first rotary positioning pin 6 and the center of the first mounting plate 11 is 77 - 80 mm, and the offset angle ɑ is 8 - 12°. In this embodiment, L1 is 78.5 mm, and the offset angle ɑ is 10°, which is suitable for the outer shell iron core model with a relatively large output. Regarding the first lateral point, there are vacant positions in the self-structure of the outer shell iron core at the first lateral point and around it. The first rotary positioning pin 6 can be inserted into this vacant position, and the rotary limit is achieved based on the rotation and close contact.

[0022] A press head corresponding to the position of the first center positioning pin is movably installed on the second mounting plate 12. Specifically, the second mounting plate 12 is provided with a mounting hole corresponding to the position of the first center positioning pin 5. As Figure 3 shown, that is, the axis of the first center positioning pin 5 passes through the center of the mounting hole. The mounting hole is used for the power source in the I area of the equipment operation table (i.e., the cylinder 3 in the I area) to pass through movably. The mounting hole matches the cylinder shaft of the cylinder 3 in the I area. One end of the cylinder shaft of the cylinder 3 in the I area close to the first mounting plate 11 is connected to the press head 4, so that the press head 4 is located between the first mounting plate 11 and the second mounting plate 12. Driven by the cylinder 3 in the I area, the press head 4 is pushed or pulled back to move along Figure 3 the double-arrow direction between the press head 4 and the cylinder 3 in the I area; there is a first distance between the first mounting plate 11 and the press head 4, and the first distance is 67 - 140 mm (calculated when the press head 4 is pushed out in place and pulled back in place). To meet the side processing requirements, when the press head 4 is pulled back in place and close to the second mounting plate 12, the outer shell iron core can be smoothly placed in or taken out between the first mounting plate 11 and the press head 4 and the reserved space is reasonable. When the press head 4 is pushed out in place, the outer shell iron core is limited by the press head 4 to ensure that it does not shift during the side processing and the processing quality is guaranteed.

[0023] The components in the II area include a second center positioning pin 1 and a second rotary positioning pin 2 installed on the substrate 9. The installation positions of the second center positioning pin 1 and the second rotary positioning pin 2 match the limiting points required for the second surface processing of the outer shell iron core. In this embodiment, the second surface is the top surface. The positioning points required for the top surface processing of the outer shell iron core include the center point and the second side point. The second side point can be the same as or different from the first side point, specifically adapted to the structure of the outer shell iron core and the position where it is processed and placed on the substrate 9. In this embodiment, as Figure 3 shown, the distance L2 between the second side point and the center of the second center positioning pin 1 is 97 mm or 17.2 mm, and the offset angle β is 15°.

[0024] As Figure 1 shown, the second center positioning pin 1 is a hollow pin, and further can be a hollow stepped pin, which is adapted to the structure of the center point for processing and positioning the outer shell iron core. A tension bolt 7 is movably installed in its hollow part. As Figure 4 shown is the shape structure of the tension bolt 7, and corresponding model products can be selected accordingly; the lower end of the tension bolt 7 is connected to the power source in the II area of the equipment operation table (i.e., the cylinder 14 in the II area); a moving pressure plate 8 is movably installed between the tension bolt 7 and the second center positioning pin 1. In this embodiment, the shape of the moving pressure plate 8 is in the shape of an opening at one place, and the structure is as Figure 5 shown, and the opening is adapted to the screw size of the tension bolt 7.

[0025] In this embodiment, the first central positioning pin 5 and the second central positioning pin 1, as well as the first rotary positioning pin 6 and the second rotary positioning pin 2, are products of conventional models and only need to match the structure of the casing iron core in conventional production to achieve the structural matching of each processing positioning, which is firm and stable.

[0026] Since the casing iron cores will be placed in Zone I and Zone II for processing respectively, the distance between Zone I and Zone II should be set to ensure that after the casing iron core is installed in any zone, it does not interfere with all components in the other zone, that is, there is no friction and jamming. At the same time, it is also necessary to ensure that the size of the substrate 9 is reasonable, without wasting the sheet material and saving costs. Importantly, the position of the second central positioning pin 1 and the selection of the second lateral point are as Figure 3 shown. The vertical distance L3 between the second central positioning pin 1 and the first mounting plate 11 (or triangular steel plate 13) is 175 - 185 mm, preferably 180 mm, to meet the above non-interference requirements. In addition, it is also possible to Figure 7 and Figure 8 shown. After the casing iron core is positioned in Zone II, the vertical distance L4 between the edge of the casing iron core and the first mounting plate 11 (or triangular steel plate 13) is 30 - 50 mm to meet the above requirements.

[0027] During specific use:

[0028] To describe the tooling and its usage process clearly, the casing iron cores to be processed are collectively referred to as product 10.

[0029] First, fix and install the substrate at a suitable position on the equipment operation table. The pressing head 4 is connected to the cylinder 3 in Zone I of the equipment operation table, and the tension bolt 7 is connected to the cylinder 14 in Zone II of the equipment operation table.

[0030] As Figure 6 shown, in Zone I, a through hole of φ10 is processed. The product 10 to be drilled with φ10 is directly above. The center hole of the product 10 is inserted into the first central positioning pin 5 for central limit. Rotate the product 10 clockwise and press it tightly against the rotary positioning pin 6 to achieve rotary positioning. The cylinder 3 in Zone I pushes the pressing head 4 to press the product 10 tightly. Adjust the corresponding tools and positioning of the numerical control equipment in advance, and along the downward arrow direction, drill and chamfer the product 10 with φ10. After the processing is completed, loosen the pressing head 4 through the cylinder 3 in Zone I and take out the product 10. The directions for the cylinder 3 in Zone I to press and loosen the pressing head 4 are as Figure 6 shown by the horizontal left - right arrows in

[0031] As Figure 6 and Figure 7As shown, the removed product 10 is installed in Area II. The machining of 4*M6 and 3*φ7 through holes is completed in Area II. The part of the product 10 to be machined is directly above. The center hole guides the second center positioning pin 1. Rotate the product 10 clockwise and press it tightly against the second rotary positioning pin 2. The cylinder 14 in Area II pushes the tension bolt 7 upward, creating a space between the tension bolt 7 and the second center positioning pin 1. Snap the moving pressure plate 8 into this space. The cylinder 14 in Area II pulls the tension bolt 7 back downward, while pressing the moving pressure plate 8 and the product 10 tightly. Utilizing the automatic tool change and positioning accuracy of the numerical control equipment, perform the drilling operation for the thread bottom hole 4-M6, chamfering treatment, machining of the 3-φ7 through hole, and tapping in sequence. After the machining is completed, push the tension bolt 7 upward through the cylinder 14 in Area II, and remove the moving pressure plate 8 and the product 10 in sequence. The directions in which the cylinder 14 in Area II pulls the tension bolt 7 back downward and pushes it upward are as Figure 6 shown by the up and down arrow directions in

[0032] Of course, there is no limitation on the machining sequence in Area I and Area II, and it can be reasonably adjusted according to the convenience of automatic tool change of the numerical control equipment, etc.

[0033] A machining tool for the outer shell iron core provided in this embodiment has the following advantages compared with the existing tool:

[0034] 1) The structure of this tool is simple, the service life of the components is long, the maintenance and replacement of each component are convenient, the cost is low, the machining positioning is convenient and stable. One product is clamped at a time. The first center positioning pin and the second center positioning pin are used to perform center positioning on the product, and the first rotary positioning pin and the second rotary positioning pin limit the rotation direction of the product to complete the limitation of the product in the x and y directions. Based on the left and right pressing fit of the second mounting plate and the cylinder in Area I, and the up and down pressing fit of the tension bolt, the moving pressure plate and the cylinder in Area II, the limitation of the product in the z direction is completed, ensuring stable positioning during product machining and improving machining accuracy; each component is adapted to the structure of the outer shell iron core itself, with convenient installation and improved machining efficiency;

[0035] 2) Two machining areas are set on the same substrate. Through the setting of the positions and relative positions of each component, the area division is reasonable, and the partition machining does not affect each other. When machining two surfaces of the same outer shell iron core, directly place the outer shell iron core in the corresponding machining area and use the components in the area for direct positioning, without the need for tooling switching, repositioning of the tooling, and positioning between the tooling and the equipment. At the same time, it is connected to the power source through the mounting holes and the tension bolt, and the positioning is ensured by the cooperation of the pressure head and the moving pressure plate, thereby improving the machining efficiency and machining accuracy and ensuring the machining quality;

[0036] 3) By using the automatic tool change and high positioning accuracy of CNC equipment, multi-size machining of the same product can be quickly achieved while maintaining the machining position. For example, after the outer shell iron core is installed in Zone II for top surface machining positioning, M6 threaded holes at 4 positions and φ7 through holes at 3 positions can be machined at this position, and accurate positioning of 4-M6 coordinates can be achieved without using traditional drill jigs, thus enabling one person to operate multiple machines, improving production efficiency and machining accuracy, and saving machining costs.

[0037] This tooling not only simplifies the operation process, but also greatly improves work efficiency and product quality, with significant economic benefits.

[0038] The above are only the embodiments of the present utility model. Specific structures and common knowledge such as characteristics well known in the art are not described in detail herein. Those of ordinary skill in the art know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can know all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not be an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A processing tool for shell iron core, connected to the equipment operating table for use, characterized in that: It includes a substrate divided into zone I and zone II, a component installed in zone I, and a component installed in zone II; The components of zone I include a first mounting plate and a second mounting plate both vertically mounted on the substrate, wherein the centers of the first mounting plate and the second mounting plate are aligned and parallel with a spacing, a first center positioning pin and a second rotation positioning pin are mounted on a side of the first mounting plate facing the second mounting plate, and a pressure head corresponding to the position of the first center positioning pin is movably mounted on the second mounting plate; The components of zone II include a second center positioning pin and a second rotation positioning pin installed on the base plate; the second center positioning pin is a hollow pin, a tension bolt is movably installed in the hollow portion thereof, and a movable pressure plate is movably installed between the tension bolt and the second center positioning pin; Among them, the installation positions of the first center positioning pin and the first rotation positioning pin match the limit points required when processing the first surface of the shell core, and the installation positions of the second center positioning pin and the second rotation positioning pin match the limit points required when processing the second surface of the shell core, and after the shell core is installed in any area, it does not interfere with all components in another area.

2. A processing tool for shell core according to claim 1, characterized in that: The limit points required for machining the first surface of the shell core include a center point and a first lateral point, wherein the first center positioning pin is installed at the exact center of the first mounting plate, the position corresponding to the center point, and the installation position of the first rotation positioning pin corresponds to the first lateral point.

3. A processing tool for shell core according to claim 2, characterized in that: The center distance L1 between the first rotation positioning pin and the first mounting plate is 77-80 mm, and the offset angle ɑ is 8-12°.

4. The processing tool for shell core according to claim 1, characterized in that: The limiting points required for machining the second surface of the shell core include a center point and a second lateral point, wherein the installation position of the second center positioning pin corresponds to the center point, and the installation position of the second rotation positioning pin corresponds to the second lateral point.

5. A processing tool for shell core according to claim 4, characterized in that: The center distance L2 between the second rotation positioning pin and the second center positioning pin is 97 mm or 17.2 mm, and the offset angle β is 15°.

6. A processing tool for shell core according to claim 4, characterized in that: The vertical distance L3 between the second center positioning pin and the first mounting plate is 175-185 mm.

7. The processing tool for shell core according to claim 1, characterized in that: The first mounting plate and the pressure head have a first distance, and the first distance is 67-140 mm.

8. The processing tool for shell core according to claim 1, characterized in that: The second mounting plate is provided with a mounting hole corresponding to the position of the first center positioning pin, the mounting hole is used for the power source of zone I of the equipment operating table to move through, and the power source of zone I is connected to a pressure head at one end facing the first mounting plate.

9. The processing tool for shell core according to claim 1, characterized in that: The lower end of the tightening bolt is connected to the power source of zone II of the equipment operating table.

10. A processing tool for a shell core according to any one of claims 8 or 9, characterized in that: The power source is a cylinder.

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