A telescoping composite mandrel positioning support device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN AERONAUTICAL POLYTECHNIC INST
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-07
AI Technical Summary
[0002]传统心轴多采用金属材料制成,存在重量大、不易调节、与复合材料热膨胀系数不匹配等问题,易导致构件变形或脱粘缺陷
[0010]与现有技术相比,本实用新型的有益效果是:本实用新型所述的一种可伸缩式复合材料芯轴定位支撑装置,通过调节螺杆控制数个定位环的间距,便于适应不同尺寸构件成型的需求。
Smart Images

Figure CN224601447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mandrel positioning support technology, specifically to a retractable composite material mandrel positioning support device. Background Technology
[0002] Traditional mandrels are mostly made of metal, which has problems such as heavy weight, difficulty in adjustment, and mismatch with the thermal expansion coefficient of composite materials, easily leading to component deformation or debonding defects. In addition, the existing mandrel structure is fixed and cannot adapt to the forming requirements of components with different curvatures or sizes, increasing the complexity and cost of the process. Therefore, there is an urgent need for a telescopic composite material mandrel positioning and support device to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a retractable composite material mandrel positioning support device that is simple in structure, reasonably designed, and easy to use, thereby solving the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: It comprises: The positioning ring comprises several rings, and several movable rods are movably inserted at equal angles on the ring wall. One end of each movable rod is fixed with a contact block, and the other end of each movable rod is fixed with a limit ring. The springs are multiple in number and are movably sleeved on the movable rod. The two ends of the springs are respectively connected to the inner wall of the positioning ring and the movable rod. The limiting rods are multiple in number and are movably inserted into the limiting rings. Adjustment components are provided at both ends of the limiting rods. The positioning rods are of several types, and they are fixed at equal angles on the two positioning rings on the left side. The positioning rods are movably inserted into the grooves of the corresponding positioning rings on the right side. An adjusting screw is screwed onto several positioning rings using bearings, and the two positioning rings on the left side are threaded onto the adjusting screw. The abutment ring is fixed on the positioning ring on the left side, and the abutment ring is set to abut against the mandrel.
[0005] Furthermore, the adjustment component includes: The contact cylinder is a hollow cylindrical structure. Several sliding grooves are fixed at equal angles on the right side of the contact cylinder. The slider is fixedly sleeved on the corresponding limiting rod and is slidably disposed in the sliding groove. The left end of the contact cylinder is connected to an external drive motor. Two adjusting cones are respectively movably disposed in the right positioning ring and the contact cylinder. The bidirectional lead screw is screwed onto the contact cylinder by a bearing, and the adjusting cones are threaded onto the bidirectional lead screw. The end of the limiting rod is engaged with the inclined surface of the adjusting cone. The clamping plates are two in number, and they are respectively fixed on the inner walls of the contact cylinder and the positioning ring, and the clamping plates are movably clamped on the ring wall of the corresponding adjusting cone block.
[0006] Furthermore, several sliders have protrusions fixed on their side walls, and the protrusions are movably engaged on the inner wall of the slide groove.
[0007] Furthermore, several connecting rods are fixed at equal angles on the ring wall of the contact ring, and the connecting rods are movably inserted into the wing ring on the ring wall of the contact cylinder.
[0008] Furthermore, the ends of several limit rods are fixed with anti-wear blocks, and the anti-wear blocks are in contact with the inclined surfaces of the adjusting cone blocks.
[0009] Furthermore, locking blocks are fixed on the left and right sides of the contact blocks, and the locking blocks are movably locked in the grooves on the inner wall of the spindle.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the telescopic composite material mandrel positioning support device of this utility model can control the spacing of several positioning rings by adjusting the screw, which is convenient to adapt to the molding needs of components of different sizes. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the positioning ring and limiting rod in this utility model.
[0013] Figure 3 This is a schematic diagram of the adjustment component in this utility model.
[0014] Figure 4 This is a schematic diagram of the internal structure of the contact cylinder in this utility model.
[0015] Figure 5 This is a schematic diagram of the structure of the contact block and the spindle in this utility model.
[0016] Explanation of reference numerals in the attached figures: Positioning ring 1, movable rod 2, contact block 3, limit ring 4, spring 5, limit rod 6, adjusting assembly 7, positioning rod 8, adjusting screw 9, contact ring 10, contact cylinder 11, slide groove 12, slider 13, adjusting cone block 14, double-acting screw 15, clamping plate 16, protrusion 17, connecting rod 18, anti-wear block 19, clamping block 20. Detailed Implementation
[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] like Figures 1-5 As shown, this specific embodiment adopts the following technical solution: It includes: Positioning ring 1, wherein there are several positioning rings 1, and several movable rods 2 are movably inserted at equal angles on the ring wall. One end of the movable rod 2 is fixed with a contact block 3, and the other end of the movable rod 2 is fixed with a limit ring 4. The position of the contact block 3 is adjusted by the movable rod 2, so that the contact block 3 abuts against the inner wall of the mandrel, thereby positioning and supporting the mandrel. The left and right sides of the contact block 3 are fixed with a locking block 20, which is movably locked in the groove of the inner wall of the mandrel, and the mandrel is restricted to the contact block 3 by the locking block 20. Spring 5, there are several springs 5, and they are movably sleeved on the movable rod 2. The two ends of the spring 5 are respectively connected to the inner wall of the positioning ring 1 and the movable rod 2. The elastic force of the spring 5 is used to limit the position of the movable rod 2. Limiting rod 6, there are several limiting rods 6, and they are respectively movably inserted into the limiting ring 4. The left and right ends of the limiting rod 6 are provided with adjusting components 7, and the limiting rod 6 is used to control the synchronous movement of several movable rods 2. Positioning rod 8, there are several positioning rods 8, and they are fixed at equal angles on the two positioning rings 1 on the left. The positioning rods 8 are movably inserted into the grooves of the corresponding positioning rings 1 on the right. The positioning rods 8 play a guiding role and restrict the movement direction of the positioning rings 1. The adjusting screw 9 is screwed onto several positioning rings 1 using bearings, and the two positioning rings 1 on the left side are screwed onto the adjusting screw 9. The adjusting screw 9 adjusts the spacing of the several positioning rings 1, thereby achieving the purpose of extension and retraction. The abutment ring 10 is fixed on the positioning ring 1 on the left side. The abutment ring 10 is configured to abut against the mandrel, and the end of the mandrel abuts against the abutment ring 10 to restrict the position of the mandrel. Adjustment component 7 includes: The contact cylinder 11 is a hollow cylindrical structure. Several sliding grooves 12 are fixed at equal angles on the right side surface of the contact cylinder 11. The slider 13 is fixedly sleeved on the corresponding limiting rod 6 and is slidably disposed in the sliding groove 12. The left end of the contact cylinder 11 is connected to an external drive motor. The slider 13 cooperates with the sliding groove 12 to restrict the movement direction of the limiting rod 6 and improve the movement stability of the limiting rod 6. The side walls of several sliders 13 are fixed with protrusions 17, and the protrusions 17 are movably locked on the inner wall of the sliding groove 12 to restrict the slider 13 in the sliding groove 12. Several connecting rods 18 are fixed at equal angles on the ring wall of the contact ring 10. The connecting rods 18 are movably inserted into the wing ring on the ring wall of the contact cylinder 11 to restrict the position of the contact cylinder 11 and improve the stability of the positioning ring 1. Two adjusting cone blocks 14 are respectively movably disposed in the right positioning ring 1 and the contact cylinder 11. A bidirectional lead screw 15 is screwed onto the contact cylinder 11 by a bearing, and the adjusting cone blocks 14 are threaded onto the bidirectional lead screw 15. The end of the limiting rod 6 is engaged with the inclined surface of the adjusting cone block 14. The distance between the two adjusting cone blocks 14 is adjusted by the bidirectional lead screw 15. With the guiding effect of the inclined surface of the adjusting cone block 14, the distance between several limiting rods 6 is adjusted. The ends of several limiting rods 6 are fixed with anti-wear blocks 19, and the anti-wear blocks 19 engage with the inclined surface of the adjusting cone block 14 to improve the service life of the limiting rods 6. There are two clamping plates 16, which are respectively fixed on the inner walls of the contact cylinder 11 and the positioning ring 1. The clamping plates 16 are movably clamped on the ring wall of the corresponding adjusting cone 14, and the moving direction of the adjusting cone 14 is restricted by the clamping plates 16.
[0019] When using this utility model, according to the inner diameter of the mandrel, turn the hand screw at the end of the adjusting screw 9 to move the corresponding positioning ring 1 along the direction of the positioning rod 8, thereby adjusting the distance between two adjacent positioning rings 1. After adjusting the positioning ring 1 to a suitable position, move the mandrel onto the positioning ring 1 until the end of the mandrel abuts against the abutment ring 10. Then, turn the double-acting screw 15. The double-acting screw 15 drives the adjusting cone block 14 to move along the direction of the clamping plate 16. With the guiding effect of the inclined surface of the adjusting cone block 14, adjust the distance between several limiting rods 6. The limiting rod 6 drives the corresponding movable rod 2 to move through the limiting ring 4. The movable rod 2 drives the abutment block 3 to move, so that the abutment block 3 abuts against the inner wall of the mandrel. At the same time, the clamping blocks 20 on the left and right sides are movably locked in the groove on the inner wall of the mandrel, thereby restricting the mandrel to the abutment block 3.
[0020] Compared with the prior art, the beneficial effects of this utility model are: The positioning rod 8 is used to guide the movement of the positioning ring 1, and the adjustment screw 9 is used to control the movement distance of the positioning ring 1, so as to facilitate the positioning and support of mandrels of different sizes. An adjustment component 7 is set up, which controls the movement of the adjustment cone 14 through the bidirectional lead screw 15. In conjunction with the guiding effect of the inclined surface of the adjustment cone 14, the spacing of several limit rods 6 is adjusted, thereby controlling the position of the abutment block 3, so that several abutment blocks 3 can be simultaneously abutted against the inner wall of the spindle. The protrusion 17 is set to restrict the slider 13 within the groove 12, thereby improving the movement stability of the limit rod 6. The wear-resistant block 19 is installed to improve the service life of the limit rod 6 and prevent damage to the end of the limit rod 6.
[0021] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A retractable composite material mandrel positioning and support device, characterized in that, It contains: Positioning ring (1), there are several positioning rings (1), and several movable rods (2) are movably inserted at equal angles on the ring wall. One end of the movable rod (2) is fixed with a contact block (3), and the other end of the movable rod (2) is fixed with a limit ring (4). Spring (5), there are several springs (5), and they are respectively movably sleeved on the movable rod (2). The two ends of the spring (5) are respectively connected to the inner wall of the positioning ring (1) and the movable rod (2); Limiting rod (6), there are several limiting rods (6), and they are respectively movably inserted into the limiting ring (4). Adjustment components (7) are provided at the left and right ends of the limiting rod (6). Positioning rod (8), there are several positioning rods (8), and they are fixed at equal angles on the two positioning rings (1) on the left side. The positioning rods (8) are movably inserted into the groove of the corresponding positioning ring (1) on the right side. Adjusting screw (9), the adjusting screw (9) is screwed onto several positioning rings (1) by means of bearings, and the two positioning rings (1) on the left side are screwed onto the adjusting screw (9); The abutment ring (10) is fixed on the positioning ring (1) on the left side, and the abutment ring (10) is set to abut against the spindle.
2. The retractable composite material mandrel positioning support device according to claim 1, characterized in that: The adjustment component (7) includes: The contact cylinder (11) is a hollow cylindrical structure. Several sliding grooves (12) are fixed at equal angles on the right side of the contact cylinder (11). The slider (13) is fixedly sleeved on the corresponding limiting rod (6), and the slider (13) is slidably disposed in the sliding groove (12). The left end of the contact cylinder (11) is connected to an external drive motor. Adjusting cone (14), there are two adjusting cones (14), and they are respectively movably set in the right positioning ring (1) and the contact cylinder (11). The double-acting screw (15) is screwed onto the contact cylinder (11) by bearing, and the adjusting cone (14) is screwed onto the double-acting screw (15). The end of the limiting rod (6) is engaged with the inclined surface of the adjusting cone (14). There are two clamping plates (16), which are respectively fixed on the inner walls of the contact cylinder (11) and the positioning ring (1), and the clamping plates (16) are movably clamped on the ring wall of the corresponding adjusting cone (14).
3. The retractable composite material mandrel positioning support device according to claim 2, characterized in that: Several sliders (13) have protrusions (17) fixed on their side walls, and the protrusions (17) are movably engaged on the inner wall of the groove (12).
4. The retractable composite material mandrel positioning support device according to claim 2, characterized in that: Several connecting rods (18) are fixed at equal angles on the ring wall of the contact ring (10), and the connecting rods (18) are movably inserted into the wing ring on the ring wall of the contact cylinder (11).
5. The retractable composite material mandrel positioning support device according to claim 1, characterized in that: Several limit rods (6) have anti-wear blocks (19) fixed at their ends, and the anti-wear blocks (19) and the inclined surfaces of the adjusting cone blocks (14) are in contact.
6. The telescopic composite mandrel positioning support device according to claim 1, characterized in that: A locking block (20) is fixed on the left and right sides of the contact block (3), and the locking block (20) is movably locked in the groove of the inner wall of the spindle.