Split adjustable round tire structure

Abstract

The application discloses a split type adjustable circular tire structure and relates to the technical field of motor core supporting structure. The application adopts a plurality of coaxial supporting rings and two types of supporting vertical ribs to form a rigid annular framework, and a symmetrical driving structure formed by cooperating a double-cone-shaped groove and upper and lower wedge-shaped plug blocks, so that the split mold can be stably, synchronously and uniformly expanded and contracted in the radial direction, the problems of deflection, misplacement and uneven stress during adjustment can be effectively avoided, and the working surface of the mold can always have high coaxiality and roundness.

Description

Technical Field

[0001] This invention relates to the technical field of motor core support structure, specifically a segmented adjustable circular tire structure. Background Technology

[0002] During the assembly and welding of the motor core and rotor, the welding heat input is relatively large, which can easily cause shrinkage of the core inner diameter, slot misalignment, and roundness deviation. Therefore, the industry generally uses segmented round jig tooling to internally support and shape the workpiece. Traditional segmented round jigs rely on manual hammering to adjust the expansion amount, which is uneven in force control. The expansion on both sides of the jig is asynchronous and the force is unbalanced, which can easily lead to roundness deviation. There is no elastic compensation structure at the splicing position of the segments. After expansion, the splicing gap and step are obvious, which affects the rotor fitting accuracy. The jig expansion lacks a limiting and guiding structure, which can easily cause circumferential misalignment during the adjustment process. At the same time, there is no sliding auxiliary structure at the bottom of the jig. The overall disassembly, assembly, and transportation have high frictional resistance, which is laborious and can easily scratch the workpiece and jig surface, making it difficult to reliably ensure the machining accuracy of the rotor. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a segmented adjustable circular tire structure.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides a segmented adjustable circular tire structure, comprising: The lower pressure plate of the tire fixture has a segmented circular tire structure connected to the outer periphery of the upper surface of the lower pressure plate of the tire fixture; The segmented circular tire structure includes a lower tire support ring, a middle tire support ring, an upper tire support ring, a first support rib, and a second support rib. The lower tire support ring, the middle tire support ring, and the upper tire support ring are arranged coaxially above the lower tire pressure plate. The axial ends of the first support rib and the second support rib are fixedly connected to the opposite sides of the lower tire support ring and the upper tire support ring, respectively, and the inner wall of the middle part is fixedly connected to the surface of the middle tire support ring, forming an integrated annular support frame, which is fixedly installed on the upper surface of the lower tire pressure plate.

[0005] As a preferred embodiment of the present invention, the two ends of the support ring on the fixture are fixedly connected by two fixture connecting plates, and the front surface of the annular support frame is covered with a segmented fixture one, and the rear surface is covered with a segmented fixture two.

[0006] As a preferred embodiment of the present invention, two elastic compensation plates are embedded in the front of both ends of the segmented tire mold one, and an elastic compensation plate two is embedded in the middle of the back of the segmented tire mold two.

[0007] As a preferred embodiment of the present invention, two positioning slots are provided on the upper surfaces of both ends of the first and second segmented jigs, and two alignment screw holes are provided on the upper surfaces of the two jig connecting plates at opposite ends. A limiting bolt is threadedly connected to the inner wall of each pair of alignment screw holes, and the lower end of the limiting bolt extends into the interior of the positioning slot.

[0008] As a preferred embodiment of the present invention, a positioning hole is provided at three positions on the upper surface of the lower support ring of the fixture, a roller is inserted into the inner cavity of each positioning hole, and a docking seat is fixedly installed directly above each roller and on the upper surface of the lower support ring of the fixture, and the docking seat is connected to each roller by bolts.

[0009] As a preferred embodiment of the present invention, two conical grooves are provided at the middle of the opposite side of the two supporting ribs on both sides, and two conical grooves are provided at the bottom of the opposite side of the two supporting ribs on both sides.

[0010] As a preferred embodiment of the present invention, an upper wedge-shaped plug is inserted into the inner cavity of each of the two conical grooves one, and a lower wedge-shaped plug is inserted into the inner cavity of each of the two conical grooves two.

[0011] The beneficial effects of this invention are: 1. This type of segmented adjustable circular tire structure adopts a dual-type vertical rib composite support structure, which significantly improves the overall rigidity and adjustment stability of the tire: This invention employs a composite skeleton structure with alternating single-rib and double-groove support ribs. The single-rib structure provides uniform overall support, while the double-rib structure is specifically designed to form a conical adjustment groove for wedge-shaped block feeding and extrusion, thus achieving independent support and adjustment functions. The overall skeleton exhibits high coaxiality and structural strength, exhibiting no swaying or torsional deformation during expansion, effectively improving the long-term stability and shaping accuracy of the fixture.

[0012] 2. This type of segmented adjustable circular tire structure uses upper and lower double sets of wedge blocks for synchronous adjustment, achieving high-precision, symmetrical expansion and contraction of the tire's outer diameter: This device uses two sets of wedge-shaped plugs to feed and compress synchronously, so that the forces on both sides of the segmented die are completely symmetrical, the expansion is uniform, and the displacement is synchronous. It effectively solves the problems of asynchronous expansion, large dimensional deviation, and poor roundness of traditional dies, and significantly improves the positioning accuracy of the rotor inner diameter and the consistency of assembly.

[0013] 3. This segmented adjustable circular jig structure, with its elastic compensation insert structure, ensures a continuous and flat outer surface of the jig, improving the workpiece fit quality. This invention features an elastic compensation structure at the splicing position of the segmented jig. During the radial expansion of the jig, the compensation plate can automatically and adaptively fill the splicing gap, eliminating the splicing steps and gaps generated after expansion. This ensures that the overall outer working surface of the jig remains continuous, flat, and smooth, avoiding problems such as inner wall indentations, local suspensions, and uneven gaps during rotor assembly, and significantly improving the welding and shaping quality of the rotor.

[0014] 4. This type of segmented adjustable circular tire structure features a bolt-limiting guide structure to ensure precise and controllable tire expansion trajectory: This invention uses a jig connecting plate, limiting bolts and appropriate slots to precisely guide and limit the radial expansion stroke of the segmented jig, restricting the jig to move only in a preset radial direction, eliminating circumferential movement and misalignment, ensuring uniform position and high repeatability of each expansion and contraction action, and further improving the tooling positioning accuracy.

[0015] 5. This type of segmented adjustable circular tire structure, equipped with a bottom lifting roller ejection structure, enables tooling to be disassembled and maintained efficiently without damage: This invention, through the cooperation of the docking mount and the retractable roller, can lift the entire circular jig support frame upward and detach it from the mounting base, greatly reducing the frictional resistance during disassembly and assembly, avoiding bumps and scratches during tooling disassembly and transportation, and completely solving the problems of difficult disassembly and assembly and inconvenient workpiece handling of traditional fixed jigs, significantly improving production efficiency and tooling service life. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a segmented adjustable circular tire structure according to the present invention; Figure 2 This is a schematic diagram of the right-side view of a segmented adjustable circular tire structure of the present invention. Figure 3 This is a front sectional view of a segmented adjustable circular tire structure according to the present invention. Figure 4 This invention relates to a segmented adjustable circular tire structure. Figure 3 A structural diagram from the right side; Figure 5 This is a transverse cross-sectional view of the upper wedge-shaped plug of a segmented adjustable circular tire structure according to the present invention. Figure 6 This is an exploded view of a portion of the structure of a segmented adjustable circular tire structure according to the present invention. Figure 7 This is an exploded view of a segmented adjustable circular tire structure according to the present invention. Figure 8 This invention relates to a segmented adjustable circular tire structure. Figure 7 A structural diagram from below; Figure 9 This invention relates to a segmented adjustable circular tire structure. Figure 3 Enlarged view of point A in the middle; Figure 10 This invention relates to a segmented adjustable circular tire structure. Figure 5 Enlarged view of point B in the middle; Figure 11 This invention relates to a segmented adjustable circular tire structure. Figure 6 Enlarged view of point C in the middle; Figure 12 This invention relates to a segmented adjustable circular tire structure. Figure 6 Enlarged view of point D in the middle; Figure 13 This invention relates to a segmented adjustable circular tire structure. Figure 8 Enlarged view of point E in the middle.

[0017] In the diagram: 1. Lower pressure plate of the fixture; 2. Split-type round fixture structure; 201. Lower support ring of the fixture; 202. Middle support ring of the fixture; 203. Upper support ring of the fixture; 204. Support rib one; 205. Support rib two; 206. Fixture connecting plate; 207. Split fixture one; 208. Split fixture two; 209. Compensation insert one; 210. Compensation insert two; 211. Fitting slot; 212. Alignment screw hole; 213. Limiting bolt; 214. Positioning mounting hole; 215. Roller; 216. Butt joint seat; 217. Conical groove one; 218. Conical groove two; 219. Upper wedge-shaped plug; 220. Lower wedge-shaped plug. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example: Figures 1-13As shown, the present invention discloses a segmented adjustable circular tire structure, comprising: a tire lower pressure plate 1, with a segmented circular tire structure 2 connected to the outer periphery of the upper surface of the tire lower pressure plate 1; the segmented circular tire structure 2 includes a tire lower support ring 201, a tire middle support ring 202, a tire upper support ring 203, a first support rib 204, and a second support rib 205. The tire lower support ring 201, the tire middle support ring 202, and the tire upper support ring 203 are arranged coaxially above the tire lower pressure plate 1. The axial ends of the first support rib 204 and the second support rib 205 are respectively fixedly connected to the opposite sides of the tire lower support ring 201 and the tire upper support ring 203, and the inner wall of the middle part is fixedly connected to the surface of the tire middle support ring 202, forming an integrated annular support frame, which is fixedly installed on the tire lower pressure plate. The upper surface of the pressure plate 1; the two ends of the support ring 203 on the fixture are fixedly connected by two fixture connecting plates 206. The front surface of the ring support frame is covered with a segmented fixture 1 207, and the rear surface is covered with a segmented fixture 208. Two elastic compensation plates 1 209 are embedded in the front of both ends of the segmented fixture 1 207. An elastic compensation plate 210 is embedded in the middle of the back of the segmented fixture 208. Two positioning slots 211 are opened on the upper surfaces of both ends of the segmented fixture 1 207 and the segmented fixture 208. Two alignment screw holes 212 are opened on the upper surfaces of the two fixture connecting plates 206 at the ends away from each other. A limiting bolt 213 is threadedly connected to the inner wall of each pair of alignment screw holes 212, and the lower end of the limiting bolt 213 extends into the interior of the positioning slot 211. Among them, the supporting upright rib 1 204, supporting upright rib 205, conical groove 1 217, and conical groove 218 are set. The single-rib supporting upright rib 1 204 bears the overall load of the frame, while the double-rib supporting upright rib 205 has a conical groove on its inner side to assemble the wedge-shaped plug, realizing the functional zoning arrangement of support and diameter expansion. This split structure makes the jig frame sufficiently rigid, and the wedge-shaped block is evenly stressed and not easy to twist or wobble when expanding, effectively ensuring the roundness and coaxiality accuracy of the jig after expansion.

[0020] Among them, through the setting of segmented jig 1 207, segmented jig 2 208, compensation plate 1 209, and compensation plate 2 210, during the outward expansion of the jig, the compensation plate embedded in the splice seam automatically fills the splice gap by its own elasticity and smooths the splice steps; so that the working surface of the outer periphery of the jig remains flat and continuous, eliminating the problem of inner wall indentation and local suspension in rotor assembly, and improving the fitting accuracy of rotor and jig.

[0021] The fixture is designed with a connecting plate 206, a positioning screw hole 212, a limiting bolt 213, and a suitable slot 211. The limiting bolt 213 passes through the lower end of the positioning screw hole 212 and extends into the suitable slot 211 to constrain the stroke of the segmented fixture. The fixture can only complete the extension and retraction action in the radial direction and cannot move circumferentially. The fixture's movement trajectory is precisely limited, and the tooling has high positioning accuracy for each opening and closing, resulting in better assembly stability.

[0022] A positioning hole 214 is provided at three positions on the upper surface of the lower support ring 201 of the fixture. A roller 215 is inserted into the inner cavity of each positioning hole 214. A docking seat 216 is fixedly installed directly above each roller 215 and on the upper surface of the lower support ring 201 of the fixture, and the docking seat 216 is connected to each roller 215 by bolts.

[0023] Two conical grooves 217 are provided in the middle of the opposite side of the two supporting uprights 205 on both sides, and two conical grooves 218 are provided at the bottom of the opposite side of the two supporting uprights 205 on both sides.

[0024] An upper wedge-shaped plug 219 is inserted into the inner cavity of each of the two conical grooves 217, and a lower wedge-shaped plug 220 is inserted into the inner cavity of each of the two conical grooves 218.

[0025] Working principle: This device uses the lower pressure plate 1 of the fixture as the overall bearing reference. The lower support ring 201, the middle support ring 202, and the upper support ring 203 of the fixture are coaxially stacked and arranged along the axial direction. They are fixedly connected with the first support rib 204 and the second support rib 205 to form an integrated ring support frame. The whole is fixedly installed above the lower pressure plate 1 of the fixture, forming the overall support base of the segmented round fixture structure 2, which provides a stable and rigid foundation for the overall diameter expansion adjustment and workpiece support operation. The front and rear sides of the ring support frame are respectively connected and installed with the first segmented jig 207 and the second segmented jig 208. The two ends of the support ring 203 on the jig are connected and limited by the jig connecting plate 206 to ensure the stability of the assembly position of the two segmented jigs. The first segmented jig 207 has a compensation plate 209 embedded in both ends, and the second segmented jig 208 has a compensation plate 210 embedded in the middle. During the jig expansion and adjustment process, the compensation plate uses its own elasticity to adaptively fill the gap generated by the jig splicing, automatically smoothing the splicing steps, so that the outer circle working surface of the jig always remains in a continuous and flat state. The upper ends of the first segmented jig 207 and the second segmented jig 208 are provided with appropriate slots 211. The jig connecting plate 206 is provided with corresponding alignment screw holes 212. After the threaded assembly of the limiting bolt 213, the lower end extends into the appropriate slot 211 to guide and constrain the movement stroke of the segmented jig, so that the two segmented jigs can only complete the expansion and contraction sliding along the preset radial direction, effectively limiting circumferential offset and misalignment, and ensuring that the opening and closing action trajectory of the jig is accurate and highly repeatable. The side support ribs 205 have conical grooves 217 and 218 formed on their inner sides, respectively. The upper wedge-shaped plug 219 is fitted into the inside of the conical groove 217, and the lower wedge-shaped plug 220 is fitted into the inside of the conical groove 218. During actual adjustment, the upper wedge-shaped plug 219 and the lower wedge-shaped plug 220 are manually tapped or pressed inward by external force, so that the two sets of wedge-shaped plugs slide inward along the inclined trajectory of the conical groove 217 and the conical groove 218, respectively. Utilizing the principle of gradually thickening and pushing the wedge-shaped inclined surface, the two side support ribs 205 are continuously pushed outward, which drives the overall segmented jig 207 and segmented jig 208 to expand radially outward at the same time, thereby increasing the outer diameter of the jig. The supporting effect can be released by reversing the wedge-shaped plugs, and the jig automatically retracts and resets, thus completing the precise adjustment of the outer diameter of the jig and adapting to the internal support and shaping requirements of rotors of different specifications.

[0026] Positioning holes 214 are provided in three directions on the lower support ring 201 of the fixture. Rollers 215 are inserted into the positioning holes 214. The rollers 215 are fixedly assembled with bolts through the mating seat 216. During the disassembly, assembly and relocation of the fixture, the bottom rollers 215 realize the smooth sliding and displacement of the entire fixture structure, which greatly reduces the frictional resistance during the disassembly, assembly and relocation of the tooling, avoids the collision and scratches caused by hard friction between the fixture and the mounting base, and effectively improves the convenience of tooling disassembly and assembly and the overall operation efficiency.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A segmented adjustable circular tire structure, characterized in that, include: Tire lower pressure plate (1), and a segmented round tire structure (2) is connected to the outer periphery of the upper surface of the tire lower pressure plate (1). The segmented circular tire structure (2) includes a lower tire support ring (201), a middle tire support ring (202), an upper tire support ring (203), a first support rib (204), and a second support rib (205). The lower tire support ring (201), the middle tire support ring (202), and the upper tire support ring (203) are arranged coaxially above the lower tire pressure plate (1). The two ends of the first support rib (204) and the second support rib (205) are fixedly connected to the opposite side of the lower tire support ring (201) and the upper tire support ring (203), respectively. The inner wall of the middle part is fixedly connected to the surface of the middle tire support ring (202) to form an integrated ring support frame, which is fixedly installed on the upper surface of the lower tire pressure plate (1). The front surface of the annular support frame is covered with a first segmented mold (207), and the rear surface is covered with a second segmented mold (208). Two conical grooves (217) are provided at the middle of the opposite side of the two supporting ribs (205) on both sides, and two conical grooves (218) are provided at the bottom of the opposite side of the two supporting ribs (205) on both sides. An upper wedge-shaped plug (219) is inserted into the inner cavity of each of the two conical grooves (217), and a lower wedge-shaped plug (220) is inserted into the inner cavity of each of the two conical grooves (218).

2. The segmented adjustable circular tire structure according to claim 1, characterized in that, The two ends of the support ring (203) on the fixture are fixedly connected by two fixture connecting plates (206).

3. The segmented adjustable circular tire structure according to claim 2, characterized in that, Two elastic compensating inserts (209) are embedded in the front of both ends of the first segmented fixture (207), and an elastic compensating insert (210) is embedded in the middle of the back of the second segmented fixture (208).

4. The segmented adjustable circular tire structure according to claim 3, characterized in that, Two positioning slots (211) are provided on the upper surfaces of both ends of the first segmented jig (207) and the second segmented jig (208). Two alignment screw holes (212) are provided on the upper surfaces of the two jig connecting plates (206) at opposite ends. A limiting bolt (213) is threadedly connected to the inner wall of each pair of alignment screw holes (212), and the lower end of the limiting bolt (213) extends into the interior of the positioning slot (211).

5. The segmented adjustable circular tire structure according to claim 4, characterized in that, A positioning hole (214) is provided at three positions on the upper surface of the lower support ring (201) of the fixture. A roller (215) is inserted into the inner cavity of each positioning hole (214). Each roller (215) is fixedly installed on the docking seat (216) directly above the upper surface of the lower support ring (201) of the fixture, and the docking seat (216) is connected to each roller (215) by bolts.

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