Precise limiting type punching point locking device
By designing a precise limited punching point anti-loosening device, the problem of inconsistent punching point position and depth of the fuel filler cap is solved, and efficient and stable punching point processing is achieved to meet the mass production requirements of aviation parts.
Patent Information
- Application Number
- CN202422736016.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-07
AI Technical Summary
When processing aviation fuel system fuel filler caps with existing technology, it is difficult to ensure consistency in the punch point position, depth and size, resulting in low work efficiency and poor process consistency. It is also easy to cause product quality problems such as warping of the pin surface, which cannot be repaired.
A precision limit-type punching point anti-loosening device is designed, which includes a punching point handle, a limit block assembly and a punching point seat. The consistency of the punching point position and depth is ensured by a precision limit pulley and a diamond limit block. A high-hardness punch and a reinforcing rib structure are used to improve stability. It is suitable for manual and hydraulic punching methods.
It improves processing efficiency and quality stability, ensures the consistency of punching point position, depth and size, avoids product quality problems and meets mass production needs.
Smart Images
Figure CN223440813U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aviation spare part machining technical field relates to a punch point anti-loose device, especially to a device that adopts precision limiting mode to carry out partial punch point anti-loose to the fuel filler cap class spare part in aviation fuel system. BACKGROUND
[0002] In the airborne equipment of aviation, especially on the fuel system engine, often configure the quick detachable fuel filler cap. The structure of this kind of spare part is compact, and the weight is small, and the use mode is simple, not only has the function of filling fuel, fuel leakage prevention, and foreign matter isolation, but also additionally sets up the pipeline with oil gas separation function. Because this kind of fuel filler cap does not have screw, cannot carry out the insurance anti-loose, adopts the interference fit of pin on the structure, and then the left and right sides of the pin are punched in the shape of 'I' to prevent loosening, the machining size of this kind of anti-loose mode is strictly required, and the position, shape and depth of twice punch point are required to be consistent.
[0003] In the processing of this kind of fuel filler cap, according to the traditional punch point method, the punch point tool used is a steel cylinder with a 'I' shaped narrow strip at the head, the punch point mode is single point punch point (the product requires that the left and right sides of the pin are punched), the tail of the steel cylinder is struck by a hammer, and the 'I' shape is punched on the surface of the product by the way of local stress deformation of the product.
[0004] This way can only punch one point at a time, and the position, size, depth and size of twice punch point cannot be guaranteed, and the left and right punch points are often not parallel or the depths of the left and right punch points are different. Using this punch point mode, not only the work efficiency is low, the process consistency is poor, but also the product quality problem is easy to cause, and the pin surface is unevenly stressed and warped, causing the product to be scrapped and unable to be repaired. INVENTION CONTENTS
[0005] In order to solve the above problems, the utility model provides a precision limiting type punch point anti-loose device, which has high machining efficiency, good precision control, stable and reliable quality, and can meet the batch production and machining demand.
[0006] The technical scheme of the utility model is as follows:
[0007] A precision limiting type punch point anti-loose device, comprising a punch point handle, a limiting block assembly and a punch point seat, the punch point seat is provided with a transverse mounting seat for mounting the product, the limiting block assembly is arranged above the punch point seat, the front end of the limiting block assembly extends out of the punch point seat, the extending part of the limiting block assembly is provided with a punch head limiting hole matched with the shape of the punch point handle, and the punch head limiting hole is arranged at the punch point position corresponding to the product; The bottom of the punch point handle has a punch head.
[0008] Further, the punch handle is divided into an upper section and a lower section, the upper section is thicker than the lower section, and the thickness of the lower section is the same as the thickness of the punch.
[0009] Further, the limiting block assembly includes a limiting block one and a limiting block two, the limiting block one and the limiting block two are installed in a stack, the punch limiting hole of the limiting block one is matched with the upper section of the punch handle, and the punch limiting hole of the limiting block two is matched with the lower section of the punch handle.
[0010] Further, the upper section of the punch handle is provided with a precision limiting pulley, and the punch limiting hole of the limiting block one is provided with a groove matched with the precision limiting pulley.
[0011] Further, the punch seat is provided with a rhombic limiting block, two sides of the rhombic limiting block are designed as arcs, and the middle of the rhombic limiting block has a structure matched with an inner hole of a product.
[0012] Further, the non-working surface of the punch seat is provided with a reinforcing rib, and the two sides and the bottom of the punch seat are provided with threaded holes.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The utility model has compact and simple structure, accurate limiting of the punch, ensured perpendicularity of the running direction, and ensured quality of the punched point.
[0015] 2. The utility model prevents the punch from being stuck during the punching process by designing a pulley on the punch handle.
[0016] 3. The utility model processes the rhombic limiting block matched with the inner hole of the product according to different limiting sizes of the product; the rhombic limiting block is made of soft material as much as possible, and the surface is smooth, and the arc part cannot exceed 1 / 3 of the whole circle, so that the product is prevented from being impacted. DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0018] Figure 1 It is a precision limiting type punch anti-loose device implementation schematic view of an embodiment of the utility model;
[0019] Figure 2 It is a punch seat schematic view of the utility model;
[0020] Figure 3 It is a limiting block one schematic view of the utility model;
[0021] Figure 4 is the point handle of the utility model;
[0022] Figure 5 is the device plan view of the utility model.
[0023] Wherein, 1—point handle, 2—precision limit pulley, 3—position screw, 4—limit block one, 5—limit block two, 6—point seat, 7—product, 8—position pin, 9—position screw. DETAILED DESCRIPTION
[0024] This part is the embodiment of the utility model, for explaining and illustrating the technical scheme of the utility model. In the case of no conflict, the embodiment of the utility model and the features in the embodiment can be combined with each other.
[0025] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the direction or positional relationship based on the orientation or position relationship of the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or case must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0026] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be interpreted broadly, for example, it can be fixed connection, can also be detachable connection or integrated connection, can be mechanical connection, can also be point connection, can be direct connection, can also be indirect connection through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0027] Example 1:
[0028] The application discloses a precise limiting type punch point anti-loosening device, which comprises a punch point handle 1, a limiting block assembly and a punch point seat 6, the punch point seat 6 is provided with a transverse mounting seat for mounting a product 7, the limiting block assembly is arranged above the punch point seat 6, the front end of the limiting block assembly extends out of the punch point seat 6, the extending part of the limiting block assembly is provided with a punch limiting hole matched with the shape of the punch point handle 1, and the punch limiting hole is arranged at a punch point position corresponding to the product 7; and the bottom of the punch point handle 1 is provided with a punch.
[0029] The punch point handle 1 is divided into an upper segment and a lower segment, the upper segment is thicker than the lower segment, and the thickness of the lower segment is the same as the thickness of the punch.
[0030] The limiting block assembly comprises a limiting block one 4 and a limiting block two 5, the limiting block one 4 and the limiting block two 5 are arranged in a stack and are combined, the punch limiting hole of the limiting block one 4 is matched with the upper segment of the punch point handle 1, and the punch limiting hole of the limiting block two 5 is matched with the lower segment of the punch point handle 1.
[0031] The upper segment of the punch point handle 1 is provided with a precise limiting pulley 2, and a groove matched with the precise limiting pulley 2 is arranged in the punch limiting hole of the limiting block one 4.
[0032] The punch point seat 6 is provided with a rhombic limiting block, the two sides of the rhombic limiting block are designed as arcs, and the middle part of the rhombic limiting block is provided with a structure matched with the inner hole of the product 7.
[0033] The non-working surface of the punch point seat 6 is provided with a reinforcing rib, and the two sides and the bottom of the punch point seat 6 are provided with threaded holes.
[0034] Embodiment 2:
[0035] Figure 1 It is an implementation schematic diagram of the precise limiting type punch point anti-loosening device of one embodiment of the application.
[0036] Reference Figure 1 The limiting and auxiliary supporting of the device comprises a limiting block 1 (4), a limiting block 2 (5) and a punch point seat 6.
[0037] The punch point seat 6 comprises a product limiting and auxiliary supporting function. Figure 2 As shown in the figure, a rhombic limiting block is arranged at the middle part of the punch point seat 6, the two sides of the rhombic limiting block are designed as arcs, the product limiting function is achieved by being matched with the inner hole of the product, the reinforcing rib is arranged on the non-working surface of the punch point seat 6, so that the stability of the device during working is improved, and three M10 threaded holes are arranged on the two sides and the bottom of the punch point seat 6, so that the punch point seat 6 is conveniently installed on a general mounting seat of a machining equipment or a production line.
[0038] The utility model discloses a combination device of precise limit of roller type, which is designed based on the analysis of process feasibility of the material, machining characteristics, mechanical structure and mechanical properties of the product, in combination with the existing mechanical manufacturing technology and the processing experience of special aviation products. The device mainly consists of a punch handle and a punch base. The punch handle is designed as a cuboid, and two parallel "I" shaped punches are arranged at the head. The hardness of the head region is improved by means of solid solution aging. A precise limit roller is arranged in the middle of the punch handle and fixed by a shaft sleeve and a pin. The punch base is designed as a base with reinforcing ribs. A rhombic limit block is arranged at the middle part of the base. The two sides of the rhombic limit block are designed as arcs. The limit block is matched with the inner hole of the product to achieve the function of product limiting. A limit block is also arranged above the punch base and fastened on the punch base by a screw. The limit block is provided with a precise slide for matching the punch handle and the precise limit roller, so as to reduce the stress deviation caused by knocking during the punching process.
[0039] The device further comprises a limit block for limiting the punch part, which is arranged between the punch base and the uppermost limit block 1. The limit block 2 is provided with a punch limiting hole, so as to further improve the punching quality and prevent the punch from being skewed due to uneven stress. The limit block 2 is fastened on the punch base by an M5 internal hexagonal screw, and an installation through hole of M8 screw is arranged to facilitate the combination and fastening of the punch base, the limit block 1 and the limit block 2.
[0040] The device further comprises a roller and a limit groove for satisfying the function of precise limiting. The roller is made of high-temperature stainless steel alloy, which can satisfy the precision and prolong the service life of the device. The surface of the limit groove is quenched to improve the surface hardness and prolong the service life of the device.
[0041] The device further comprises a punch device capable of punching two places at the same time. The hardness of the punch is improved by solid solution aging, and the root is provided with an arc transition to reduce stress concentration. The head is designed as a chamfered punch, which can ensure uniform stress during the punching process.
[0042] The device further comprises a general installation type punch base. Three M10 threaded holes are arranged at both sides and the bottom of the punch base to facilitate the installation on the general installation base of the mechanical processing equipment or production line during use.
[0043] The device further comprises a replaceable limit block. The limit block with different thickness and size can be selected according to different product structures. The limit block is provided with general M5 and M8 internal threads, which are convenient and simple to use.
[0044] The device further comprises a punch base with support. The reinforcing ribs are arranged on the non-working surface of the punch base to ensure the stability during use.
[0045] The utility model comprises a universal punching point combination device, which can simultaneously meet two different working modes of manual punching point and press hydraulic punching point.
[0046] Limit block 1 (4) and limit block 2 (5) include the function of limiting the offset handle 1. Figure 3 As shown, the limit block 1 (4) is provided with a precision slideway to cooperate with the punch handle 1 and the precision limit roller 2 to provide a stable and precise motion trajectory during the up and down reciprocating motion. The limit block 2 (5) is provided with a punch limit hole to further improve the punching quality and prevent the punch from being skewed due to uneven force.
[0047] refer to Figure 1 The movable parts of the device include: a punching handle 1, a precision limiting pulley 2, and a positioning pin 8.
[0048] Among them, Figure 4 As shown, the precision limit pulley 2 is fixed in the middle of the punching handle 1 by the positioning pin 8. The selected material is stainless steel alloy based on the process analysis. The operator can use two methods to punch the punch manually or by hydraulic punching with a press. During the operation, pressure is applied to the tail of the punching handle 1, and the precision limit pulley 2 slides in the slideway of the limit block 1 (4) to realize the limit function, and the pressure is transmitted to the punch, thereby leaving a punching mark on the product to realize the punching.
[0049] refer to Figure 5 The fastening components of the device include: limit block 1 4, limit block 2 5, punching point seat 6, positioning screw 3, and positioning screw 9.
[0050] Among them, the limit block 1 4 and the limit block 2 5 are respectively provided with M5 and M8 internal threads. The limit block 2 5 is fastened to the punching point seat by the positioning screw 9 (M5 hexagon socket screw), and the limit block 1 4 is fastened to the punching point seat by the positioning screw 3 (M8 hexagon socket screw). At the same time, the limit block 2 5 is tightened to ensure the accurate position of the precision slide.
[0051] In some embodiments, the limit block 1 4, the limit block 2 5, and the punching point seat 6 can be assembled with parts of different specifications according to the sizes of different products. When there are many limit elements, a transverse limit block can be added to ensure the punching point requirements; the reinforcement ribs of the punching point seat 6 can be machined, and can also be welded to the non-working surface to achieve the role of auxiliary support; the diamond limit block in the middle part of the punching point seat 6 can also be combined according to the sizes of different products through interference pressing or mechanical processing, and can be processed into a diamond limit block that fits the inner hole of the product according to the different limit sizes of the product; the diamond limit block should be made of softer material as much as possible and have a smooth surface, and the arc part cannot exceed 1 / 3 of the full circle to achieve the purpose of protecting the product from impact.
[0052] In some embodiments, the punch handle 1, the precision limiting pulley 2, different sizes of punch handle and pulley can be selected according to different punch requirements; the positioning pin 8 can be installed on the punch handle 1 by increasing the bushing to reduce wear and tear and reduce radial force during use.
[0053] In some embodiments, the limiting block one 4, the punch handle 1, and the precision limiting pulley 2 can be combined with appropriate matching sizes to ensure that the movement trajectory is in a vertical state and to reduce the problem of unqualified punching caused by the deflection of the punch handle 1; when selecting the size of the limiting groove and the size of the pulley outer circle, transition fit is preferably used to prevent jamming during punching and cause device failure.
[0054] The utility model provides a kind of precision limiting type punch anti-loose device.The device can include: punch handle, the assembly of precision limiting pulley and positioning pin;Punching auxiliary assembly of positioning screw, limiting block and punch seat combination;Punch, punch handle used in hand punch, punch, punch handle, punch protection pad used in press hydraulic pressure etc.The above-mentioned device should be installed with punch handle with punch, limiting block with limiting effect, with auxiliary support and product limiting punch seat.
[0055] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model.
Claims
1. A precision limited impact point anti-loosening device, characterized in that: The invention comprises a punching handle (1), a limit block assembly and a punching seat (6); the punching seat (6) is provided with a transverse mounting seat for mounting a product (7); the limit block assembly is arranged above the punching seat (6); the front end of the limit block assembly extends out of the punching seat (6); the extended portion of the limit block assembly is provided with a punch limit hole in the shape of the punching handle (1); the punch limit hole is arranged at the punching position corresponding to the product (7); and a punch is provided at the bottom of the punching handle (1).
2. A precision position-limiting impact point anti-loosening device according to claim 1, characterized in that: The punch handle (1) is divided into an upper section and a lower section. The upper section is thicker than the lower section, and the thickness of the lower section is the same as the thickness of the punch.
3. A precision position-limiting impact point anti-loosening device according to claim 2, characterized in that: The limit block assembly comprises a limit block 1 (4) and a limit block 2 (5), wherein the limit block 1 (4) and the limit block 2 (5) are stacked and assembled, the punch limit hole of the limit block 1 (4) matches the upper part of the punch handle (1), and the punch limit hole of the limit block 2 (5) matches the lower part of the punch handle (1).
4. A precision position-limiting impact point anti-loosening device according to claim 1, characterized in that: The upper portion of the punch handle (1) is provided with a precision limiting pulley (2), and a groove matching the precision limiting pulley (2) is provided in the punch limiting hole of the limiting block 1 (4).
5. A precision position-limiting impact point anti-loosening device according to claim 1, characterized in that: A diamond-shaped limiting block is provided in the punching seat (6), the two sides of the diamond-shaped limiting block are designed as arcs, and the middle of the diamond-shaped limiting block has a structure that matches the inner hole of the product (7).
6. A precision position-limiting impact point anti-loosening device according to claim 1, characterized in that: The non-working surface of the punching point seat (6) is provided with reinforcing ribs, and both sides and the bottom of the punching point seat (6) are provided with threaded holes.