Half-clamp dry film lubrication spraying tool
By using a motor-driven linkage swing and a sliding groove to adjust the spraying radius, the problems of low efficiency, uneven spraying, and material waste in traditional spraying methods are solved, achieving efficient and uniform spraying of semi-clamp dry film lubrication and the versatility of tooling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional spraying methods are inefficient, have difficulty in accurately controlling the spraying trajectory, and have low material utilization. Furthermore, traditional fixed fixtures cannot adapt to the differences in the arc contour of the semi-clamp, resulting in uneven spraying and material waste.
The design adopts a motor-driven connecting rod swing and a slide groove to adjust the spraying radius. The motor drives the rotating rod to rotate and drive the connecting rod to swing, so as to achieve uniform spraying of the nozzle along the semi-clamp arc trajectory. Combined with the centering bearing, it ensures a constant distance between the nozzle and the workpiece, and is suitable for workpieces with different arc radii.
It improves the uniformity of coating thickness and material utilization, reduces manual operation and material waste, and enhances spraying efficiency and tooling versatility.
Smart Images
Figure CN224057762U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aerospace mechanical processing technology, and more specifically, to a semi-clamp dry film lubrication spraying fixture. Background Technology
[0002] In the field of aerospace machining, rigid quick-release clamps are widely used in engine piping systems, playing a crucial role in connecting liquid cooling and environmental control system pipelines. The semi-clamp structure of these clamps is typically designed with V-grooves to maintain stable performance under harsh conditions such as high temperature and high pressure. Therefore, a dry film lubricant needs to be uniformly sprayed onto its surface to enhance wear resistance and corrosion resistance. However, traditional spraying methods rely on manual hand-held spray guns to spray each workpiece individually, which has significant drawbacks: firstly, manual operation is inefficient and cannot meet the needs of mass production; secondly, the spraying trajectory and distance are difficult to control precisely, resulting in uneven film thickness, local accumulation, or missed spraying, affecting product reliability; thirdly, the spraying material consumption is high, and the process of cleaning residual paint is cumbersome, further increasing costs and time. Furthermore, the differences in the arc contour of the semi-clamps require the spraying equipment to have adaptive adjustment capabilities, while traditional fixed tooling cannot achieve flexible adjustment, resulting in poor versatility.
[0003] To address the aforementioned issues, there is an urgent need to develop a specialized spraying fixture with a high degree of automation, precise and controllable spraying trajectory, and strong adaptability, in order to improve spraying efficiency, uniformity, and material utilization, while reducing manual intervention and operational difficulty. Utility Model Content
[0004] To address the aforementioned technical issues, a semi-clamp dry film lubrication spraying fixture is provided. By using a motor-driven connecting rod to swing and a sliding groove to adjust the spraying radius, uniform spraying along an arc trajectory is achieved, solving the problems of uneven film thickness, low efficiency, and material waste associated with traditional manual spraying.
[0005] To achieve the above objectives, this utility model provides a semi-clamp dry film lubrication spraying fixture, comprising: a base, a motor, a rotating rod, a connecting shaft, a connecting rod, a nozzle extension rod, a nozzle and an extension rod fixing bracket;
[0006] The motor is fixed on the base, one end of the rotating rod is connected to the output end of the motor through a shaft hole, and the other end is provided with a first sliding groove structure;
[0007] One end of the connecting rod is hinged to the base through an end hole to form a fixed axis point, and a side sliding groove is provided on the upper side of the connecting rod.
[0008] The connecting shaft passes through the first sliding groove structure of the rotating rod and the second sliding groove structure of the connecting rod, thereby slidably connecting the rotating rod and the connecting rod.
[0009] The nozzle extension rod is adjustablely fixed in the side slide groove of the connecting rod. One end of the rod is connected to the nozzle, and the other end is connected to the spraying air source. The spraying radius can be adjusted by adjusting the extension length in the side slide groove.
[0010] The motor drives the rotating rod to rotate, which in turn causes the connecting rod to swing around the axis, thus enabling the nozzle to reciprocate along the arc trajectory of the semi-clamp.
[0011] Furthermore, the side sliding groove of the connecting rod is an elongated through groove, the length of which is parallel to the axis of the connecting rod. A locking bolt is provided in the side sliding groove to fix the extension length of the nozzle extension rod.
[0012] Furthermore, the connecting shaft is clearance-fitted with the first sliding groove structure of the rotating rod and the second sliding groove structure of the connecting rod, allowing the rotating rod to drive the connecting rod to swing through the connecting shaft when it rotates.
[0013] Furthermore, it also includes an extension rod fixing bracket, which is fixed in the side sliding groove of the connecting rod by a connecting nut, and is used to clamp the nozzle extension rod.
[0014] Furthermore, the base is provided with a centering bearing, the centering bearing is embedded with a mandrel, and the mandrel is coaxially fixed with the semi-clamp workpiece to ensure that the nozzle and the workpiece maintain a constant distance during the spraying process.
[0015] Furthermore, the first groove structure of the rotating rod is an arc-shaped groove, the curvature of which matches the V-shaped groove contour of the semi-clamp, so as to adapt to workpieces with different arc radii.
[0016] Furthermore, the motor is a stepper motor or a servo motor, and its speed and oscillation frequency are adjustable to control the uniformity of the coating thickness.
[0017] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:
[0018] 1. The present invention provides a semi-clamp dry film lubrication spraying fixture, which uses a motor-driven connecting rod swing and a slide groove adjustment mechanism to precisely control the nozzle to reciprocate along the arc trajectory of the semi-clamp V-groove, ensuring a constant spraying spacing, significantly improving the uniformity of film thickness, avoiding local accumulation or missed coating, and meeting the high standard requirements of aerospace components for lubricant performance.
[0019] 2. The present invention provides a semi-clamp dry film lubrication spraying fixture. The fixture is automatically oscillating to replace manual operation, reducing positioning and adjustment time and realizing rapid batch spraying. The adjustable side sliding groove design supports semi-clamp workpieces with different arc radii, enhancing the versatility of the fixture and shortening the changeover cycle.
[0020] 3. The semi-clamp dry film lubrication spraying fixture provided by this utility model has a stable mechanical transmission trajectory and a precise and controllable spraying path, which effectively reduces dry film lubricant splashing and excessive spraying, improves material utilization, and reduces subsequent cleaning processes, thereby comprehensively reducing production costs and resource waste.
[0021] Based on the above reasons, this utility model can be widely promoted in the field of aerospace mechanical processing technology. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is an exploded structural diagram of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0024] Figure 2 This is a schematic diagram of the combined structure of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0025] Figure 3 This is a schematic diagram of the base structure of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0026] Figure 4 This is a schematic diagram of the rotating rod of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0027] Figure 5 This is a schematic diagram of the connecting shaft of a semi-clamp dry film lubrication spraying fixture according to this utility model;
[0028] Figure 6 This is a schematic diagram of the connecting rod of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0029] Figure 7 This is a schematic diagram of the extended rod fixing frame of a semi-clamp dry film lubrication spraying fixture according to the present invention;
[0030] Figure 8 This is a schematic diagram of the mandrel of a semi-clamp dry film lubrication spraying fixture described in this utility model.
[0031] In the diagram: 1. Base; 2. Motor; 3. Rotating rod; 4. Connecting shaft; 5. Connecting rod; 6. Nozzle extension rod; 7. Nozzle; 8. Extension rod fixing bracket; 9. Connecting nut; 10. Centering bearing; 11. Mandrel. Detailed Implementation
[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0035] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0036] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0037] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0038] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0039] Example
[0040] like Figures 1 to 8 As shown, this utility model provides a semi-clamp dry film lubrication spraying fixture, including: a base 1, a motor 2, a rotating rod 3, a connecting shaft 4, a connecting rod 5, a nozzle extension rod 6, a nozzle 7, and an extension rod fixing bracket 8;
[0041] The base 1 serves as the support base for the tooling and is made of high-strength metal. It has mounting holes on its surface. The motor 2 is fixed on the base 1. One end of the rotating rod 3 is connected to the output end of the motor 2 through a shaft hole, and the other end is provided with a first sliding groove structure. It is preferably a stepper motor 2 or a servo motor 2. Its output end is connected to the rotating rod 3 through a shaft hole. The rotation speed and oscillation frequency are adjustable to precisely control the spraying trajectory and film thickness uniformity.
[0042] One end of the rotating rod 3 is rigidly connected to the output end of the motor 2, and the other end is provided with a first sliding groove structure. The sliding groove is arc-shaped, and its curvature matches the contour of the half clamp V-groove, which can be adapted to workpieces with different arc radii.
[0043] One end of the connecting rod 5 is hinged to the base 1 through the end round hole to form a fixed swing axis center point; the upper side is provided with a second sliding groove structure, which is a long strip through groove with its length direction parallel to the axis of the connecting rod 5. A locking bolt is provided in the groove to adjust and fix the extension length of the nozzle extension rod 6.
[0044] The connecting shaft 4 passes through the arc-shaped groove of the rotating rod 3 and the long strip-shaped groove of the connecting rod 5. The two are slidably connected by a clearance fit, which converts the rotational motion of the rotating rod 3 into the reciprocating oscillation of the connecting rod 5.
[0045] The extension rod fixing bracket 8 is fixed in the side sliding groove of the connecting rod 5 by the connecting nut 9, and is used to clamp the nozzle extension rod 6. The nozzle extension rod 6 is adjustablely fixed in the side sliding groove of the connecting rod 5 by the extension rod fixing bracket 8. One end is connected to the nozzle 7 and the other end is connected to the spraying air source; adjusting its extension length can change the spraying radius.
[0046] The centering bearing 10 is embedded in the reserved hole of the base 1, and the spindle 11 is coaxially fixed with the semi-clamp workpiece to ensure that the distance between the nozzle 7 and the workpiece is constant during the spraying process, and to avoid uneven film thickness caused by eccentricity.
[0047] Furthermore, after the motor 2 starts, it drives the rotating rod 3 to rotate around its axis. The arc-shaped groove of the rotating rod 3 meshes with the long strip groove of the connecting rod 5 through the connecting shaft 4. Due to the clearance fit between the two, the rotational motion of the rotating rod 3 forces the connecting shaft 4 to slide in the groove, thereby driving the connecting rod 5 to swing around the fixed axis.
[0048] When the connecting rod 5 swings, the nozzle extension rod 6 fixed in the side slide groove moves synchronously. By adjusting the position of the extension rod fixing bracket 8 in the slide groove, the spraying radius of the nozzle 7 can be changed to adapt to semi-clamp workpieces of different sizes. The locking bolt is used to fix the adjusted position to ensure spraying stability.
[0049] The workpiece is coaxially fixed to the centering bearing 10 via the mandrel 11, so that the nozzle 7 always moves at a constant speed along the arc trajectory of the semi-clamp, with a constant spacing.
[0050] Furthermore, the semi-clamp workpiece is fitted into the mandrel 11 and fixed by a clamp to ensure that the workpiece axis is completely aligned with the mandrel 11. The extension length of the nozzle extension rod 6 is adjusted according to the radius of the workpiece V-groove and fixed by locking bolts. The speed and oscillation frequency of the motor 2 are set to match the fluidity and film thickness requirements of the spraying material.
[0051] Start motor 2, rotate rod 3 drives connecting rod 5 to swing, nozzle 7 reciprocates along the V-groove trajectory of semi-clamp, spray air source sprays dry film lubricant evenly onto workpiece surface through nozzle extension rod 6, spray angle is always perpendicular to workpiece surface.
[0052] By monitoring the film thickness in real time, the speed of motor 2 or the position of nozzle 7 can be finely adjusted to ensure that the film thickness tolerance is ≤0.01mm.
[0053] Furthermore, the curvature of the arc-shaped groove of the rotating rod 3 is consistent with that of the V-shaped groove of the semi-clamp, ensuring that the spraying trajectory of workpieces with different radii is completely matched. The long strip groove of the connecting rod 5 allows the nozzle extension rod 6 to be linearly adjusted within a range of ±15mm, covering common semi-clamp sizes.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A semi-harness dry film lubrication spray tooling characterized by, The utility model relates to a kind of semi-hoop spraying device, including: Base (1), motor (2), rotating rod (3), connecting shaft (4), connecting rod (5), nozzle extension rod (6), nozzle (7) and extension rod fixing frame (8); The motor (2) is fixed on the base (1), and the rotating rod (3) is connected with the output end of the motor (2) through the shaft hole cooperation at one end, and the other end is provided with the first sliding groove structure; The connecting rod (5) is hinged to form a fixed axis point with the base (1) through the end circular hole at one end, and the upper side of the connecting rod (5) is provided with a side sliding groove; The connecting shaft (4) penetrates the first sliding groove structure of the rotating rod (3) and the second sliding groove structure of the connecting rod (5), and the rotating rod (3) and the connecting rod (5) are slidably connected; The nozzle extension rod (6) is adjustably fixed in the side sliding groove of the connecting rod (5), one end of which is connected with the nozzle (7), and the other end is connected with the spraying gas source, and the spraying radius is adjusted by adjusting the extension length in the side sliding groove; The motor (2) drives the rotating rod (3) to rotate, drives the connecting rod (5) to swing around the axis point, and realizes the reciprocating spraying of the nozzle (7) along the semi-hoop circular arc track.
2. A semi-harness dry film lubrication spray tooling according to claim 1, wherein, The side sliding groove of the connecting rod (5) is a long strip-shaped through groove, and the length direction is parallel to the axis of the connecting rod (5), and the side sliding groove is provided with a locking bolt for fixing the extension length of the nozzle extension rod (6).
3. The semi-harness dry film lubricant spray tooling of claim 1, wherein, The connecting shaft (4) is gap-fitted between the first sliding groove structure of the rotating rod (3) and the second sliding groove structure of the connecting rod (5), allowing the connecting rod (5) to swing through the connecting shaft (4) when the rotating rod (3) rotates.
4. The semi-harness dry film lubricant spray tooling of claim 1, wherein, It also includes an extension rod fixing frame (8), which is fixed in the side sliding groove of the connecting rod (5) through a connecting nut (9) and is used for clamping the nozzle extension rod (6).
5. A semi-harness dry film lubrication spray tooling according to claim 1, wherein, The base (1) is provided with a centering bearing (10), and the centering bearing (10) is embedded with a mandrel (11), and the mandrel (11) is coaxially fixed with the semi-hoop workpiece, to ensure that the nozzle (7) maintains a constant distance from the workpiece during spraying.
6. A semi-harness dry film lubrication spray tooling according to claim 1, wherein, The first sliding groove structure of the rotating rod (3) is an arc-shaped sliding groove, and the arc is matched with the V-shaped groove profile of the semi-hoop, to adapt to workpieces of different arc radii.
7. A semi-harness dry film lubrication spray tooling according to claim 1, wherein, The motor (2) is a stepper motor or a servo motor, and the rotating speed and the swing frequency are adjustable to control the uniformity of the sprayed film thickness.