Fixing device
By designing a fixing device that matches the special-shaped contour parts, the parts are fixed by using vacuum suction, the problems of uneven wall thickness, poor surface finish and low clamping efficiency in the processing of special-shaped contour parts are solved, and the uniformity and efficient batch processing of parts are achieved. .
Patent Information
- Application Number
- CN202420881573.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-25
AI Technical Summary
When processing parts with special-shaped contours and small wall thickness, the existing clamping methods lead to uneven wall thickness and size, poor surface finish, low clamping efficiency, low fault tolerance, and inability to batch processing.
A fixing device is designed, which includes a mating surface and a fixing structure that matches the surface profile of the special-shaped contour part. By providing a plurality of grooves and vacuum interfaces on the mating surface, the part is fixed by using vacuum suction force. Ensure stable fit and fixation of parts.
It effectively avoids the vibration knife phenomenon during the processing process, ensures uniform wall thickness and dimensions of parts, high surface finish, and supports batch processing, improving batch processing efficiency.
Smart Images
Figure CN222134767U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a fixing device. Background Art
[0002] Parts with special contours and small wall thickness, such as Figure 1 The part shown in the figure is long, has an irregular profile and a small wall thickness. When processing such thin-walled parts with irregular profiles, the conventional clamping method is to use an auxiliary block with adhesive pads on the bottom or plaster to avoid the vibration of the tool during processing. The disadvantage of this clamping method is that the wall thickness of the processed parts is uneven and the surface finish is poor. At the same time, this clamping method has the problems of low clamping efficiency, low fault tolerance, and inability to process in batches. Utility Model Content
[0003] Therefore, the technical problem to be solved by the utility model is that the parts processed by the existing clamping method have the defects of uneven wall thickness and poor surface finish. At the same time, there are also problems such as low clamping efficiency, low fault tolerance and inability to process in batches, so a fixing device is provided.
[0004] In order to solve the above problems, the utility model provides a fixing device, comprising:
[0005] A main body, the main body having a mating surface, the mating surface profile being configured to match the surface profile of the profiled part so that the profiled part fits on the mating surface;
[0006] A fixing structure is arranged on the main body, and the fixing structure is suitable for fixing the special-shaped contour part on the matching surface.
[0007] Furthermore, the fixing structure includes a plurality of grooves arranged on the mating surface, the plurality of grooves are fluidically connected to each other, a vacuum interface is arranged on the mating surface, one end of the vacuum interface is connected to a vacuum generating device, and the other end of the vacuum interface is connected to at least one of the grooves.
[0008] Furthermore, the matching surface is one of a cylindrical surface, an elliptical cylindrical surface, an at least partially spherical surface, and an at least partially ellipsoidal surface.
[0009] Furthermore, the plurality of grooves are arranged in a one-dimensional array or a two-dimensional array.
[0010] Furthermore, the plurality of grooves include one or more mutually parallel longitudinal grooves extending along the longitudinal direction of the mating surface and one or more mutually parallel transverse grooves extending along the transverse direction of the mating surface.
[0011] Furthermore, the main body also includes a first extending surface and a second extending surface extending toward both sides of the matching surface.
[0012] Furthermore, the first extension surface and / or the second extension surface is provided with one or more positioning holes.
[0013] Furthermore, a positioning pin is inserted into the positioning hole to limit the special-shaped contour part.
[0014] Furthermore, it also includes:
[0015] A vacuum generating device is connected to the vacuum interface through an exhaust pipe.
[0016] Furthermore, the vacuum generating device is an air pump. The utility model has the following advantages:
[0017] The utility model discloses a fixing device, the main body of which has a matching surface, and the matching surface can match the surface contour of a special-shaped contour part, so that the special-shaped contour part can fit with the matching surface, and then the special-shaped contour part and the matching surface are fixed by a fixing structure, thereby avoiding the knife vibration phenomenon during the processing, and at the same time ensuring that the wall thickness of the processed parts is uniform and the surface finish is high. Furthermore, the fixing device of the present application can be used for batch processing, thereby improving the efficiency of batch processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of a part with a special profile;
[0020] Figure 2 Schematic diagram of the fixing device in this embodiment Figure 1 ;
[0021] Figure 3 Schematic diagram of the fixing device in this embodiment Figure 2 ;
[0022] Figure 4 is a top view of the fixing device in this embodiment;
[0023] Description of reference numerals:
[0024] 1. Main body; 2. Mating surface; 3. Special-shaped contour part; 4. Groove; 5. Vacuum interface; 6. First extension surface; 7. Second extension surface; 8. Positioning hole. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0029] like Figure 1 As shown, this embodiment provides a special-shaped contour part 3, namely a missile compartment window frame part, which is relatively long, has a special-shaped contour and a small wall thickness. The special-shaped contour part 3 has a middle part and two flat-plate flange parts extending from the middle part to both sides respectively. The middle part is a thin-walled structure, and the surface contour of its lower surface is cylindrical.
[0030] like Figures 2 to 4As shown, this embodiment discloses a fixing device, comprising: a main body 1 and a fixing structure. The main body 1 has a mating surface 2, and the contour of the mating surface 2 is configured to match the surface contour of the profiled part 3, so that the profiled part 3 fits on the mating surface 2. The fixing structure is arranged on the main body 1, and the fixing structure is suitable for fixing the profiled part 3 on the mating surface 2.
[0031] Specifically, the upper surface of the main body 1 has a mating surface 2, the profile of which matches the surface profile of the special-shaped part 3 to be processed, for example Figure 1 The special-shaped contour part 3 shown in the figure can have a lower surface that fits on the mating surface 2, so that the special-shaped contour can be placed on the main body 1. The main body 1 is also provided with a fixing structure that can fix the special-shaped contour on the main body 1 to prevent the special-shaped contour from moving due to force during processing.
[0032] Further, the mating surface 2 is one of a cylindrical surface, an elliptical cylindrical surface, a spherical surface at least in part, and an ellipsoidal surface at least in part. Preferably, in this embodiment, the mating surface 2 is a cylindrical surface. Figure 1 The profiled part 3 shown in FIG.
[0033] It should be noted that the fixing device disclosed in this embodiment can be applied to processing various thin-walled parts with special-shaped contours, and is not limited to Figure 1 The special-shaped contour part 3 shown in the figure may include a cylindrical shape, an elliptical cylindrical shape, or other special-shaped contours, such as a cylindrical surface with a cross section being an arbitrary curve, a spherical surface that is at least partially spherical, or a ellipsoidal surface that is at least partially ellipsoidal.
[0034] Furthermore, in this embodiment, the fixing structure includes a plurality of grooves 4 arranged on the mating surface 2, and the plurality of grooves 4 are fluidically connected to each other. A vacuum interface 5 is provided on the mating surface 2, and one end of the vacuum interface 5 is connected to the vacuum generating device, and the other end of the vacuum interface 5 is connected to at least one groove 4.
[0035] Specifically, Figure 3 and Figure 4 As shown, after the profiled part 3 is fitted to the mating surface 2 , the vacuum generating device can suck out the gas in the groove 4 through the vacuum interface 5 , and the groove 4 generates suction on the profiled part 3 , and adsorbs and fixes the profiled part 3 on the mating surface 2 .
[0036] In other optional embodiments, the fixing structure may be a clamp to fix the special-shaped contour part 3 on the matching surface 2.
[0037] Further, such as Figure 3 and Figure 4As shown, the plurality of grooves 4 include one or more mutually parallel longitudinal grooves 4 extending along the longitudinal direction of the mating surface 2 and one or more mutually parallel transverse grooves 4 extending along the transverse direction of the mating surface 2 .
[0038] Preferably, in this embodiment, the plurality of grooves 4 include three mutually parallel longitudinal grooves 4 extending in the longitudinal direction of the mating surface 2 and seven mutually parallel transverse grooves 4 extending in the transverse direction of the mating surface 2. In other embodiments, the plurality of grooves 4 may include other numbers of longitudinal grooves 4 and transverse grooves 4, or may include one or more grooves 4 extending in an inclined direction (i.e., non-longitudinal or transverse direction) of the mating surface 2.
[0039] In other optional embodiments, the plurality of grooves 4 may be formed or arranged into a one-dimensional array or a two-dimensional array. For example, the plurality of grooves 4 may be formed or arranged into a one-dimensional array arranged in one direction, or may be formed or arranged into a two-dimensional array arranged in two mutually perpendicular directions.
[0040] Furthermore, the main body 1 further includes a first extending surface 6 and a second extending surface 7 extending toward both sides of the mating surface 2 .
[0041] Specifically, Figure 3 and Figure 4 As shown, the first extension surface 6 and the second extension surface 7 make Figure 1 The extensions on both sides of the middle profiled part 3 are respectively fitted with the first extension surface 6 and the second extension surface 7 , so that the inner wall of the profiled part 3 is better fitted with the matching surface 2 .
[0042] Furthermore, the first extension surface 6 and / or the second extension surface 7 is provided with one or more positioning holes 8 .
[0043] Furthermore, the positioning pin is inserted into the positioning hole 8 to limit the special-shaped contour part 3.
[0044] Specifically, Figure 3 and Figure 4 As shown, one or more positioning pins are inserted into the positioning hole 8 to position the placement of the special-shaped contour part 3. At the same time, the special-shaped contour part 3 can also be limited to prevent the special-shaped contour part 3 from moving during processing.
[0045] It should be noted that the positioning pin is Figures 2 to 4 Although not shown in the figure, those skilled in the art can understand the technical effect of the positioning pin in this embodiment.
[0046] Preferably, in this embodiment, three positioning holes 8 are arranged on the first extension surface 6, and one positioning hole 8 is arranged on the mating surface 2. In other optional embodiments, the positioning hole 8 may be arranged on the second extension surface 7 or on both the first extension surface 6 and the second extension surface 7.
[0047] Furthermore, the fixing device also includes a vacuum generating device, and the vacuum generating device is connected to the vacuum interface 5 through an exhaust pipe.
[0048] Preferably, in this embodiment, the vacuum generating device is an air pump.
[0049] Preferably, in this embodiment, the width of the groove 4 may be 3.5 mm. In other optional embodiments, the width of the groove 4 may be 3.4 mm, 3.6 mm or other widths.
[0050] Preferably, in this embodiment, the depth of the groove 4 can be 3.5 mm. In other optional embodiments, the width of the groove 4 can be 3.4 mm or 3.6 mm or other depths.
[0051] In this embodiment, by setting the surface profile of the mating surface 2 of the main body 1 of the fixture to match the surface profile of the lower surface of the thin-walled part with a special-shaped profile to be processed (for example, a missile cabin window frame part), the lower surface of the thin-walled part with a special-shaped profile to be processed can be placed on the mating surface 2 of the main body 1 in a close fit, and by setting a plurality of grooves 4 in the mating surface 2 of the main body 1 of the fixture, the vacuum interface 5 is connected to at least one groove 4, so that the groove 4 forms a vacuum negative pressure, adsorbs the thin-walled part with a special-shaped profile to be processed, so that the lower surface of the thin-walled part with a special-shaped profile to be processed is closely fitted with the mating surface 2 of the main body 1 of the fixture. Optionally, one or more positioning pins can be set around the thin-walled part with a special-shaped profile to be processed to further limit the lateral movement of the thin-walled part with a special-shaped profile to be processed.
[0052] The fixing device disclosed in this embodiment can ensure the adsorption stability of the thin-walled parts with special-shaped contours to be processed (for example, missile compartment window frame parts), and ensure the uniformity of the adsorption force on the thin-walled parts with special-shaped contours to be processed.
[0053] By means of the fixing device disclosed in this embodiment, the thin-walled parts with special-shaped contours to be processed can be firmly and reliably fixed to prevent the vibration of the tool during the processing, and can effectively solve the problems of uneven wall thickness, poor surface finish, low batch processing efficiency, etc. The fixing device disclosed in this embodiment has the advantages of simple structural design and low processing cost.
[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.
Claims
1. A fixing device, characterized in that: include: A main body (1), the main body (1) having a mating surface (2), the profile of the mating surface (2) being configured to match the surface profile of a profiled part (3), so that the profiled part (3) fits on the mating surface (2); A fixing structure is arranged on the main body (1), and the fixing structure is suitable for fixing the special-shaped profile part (3) on the matching surface (2).
2. The fixing device according to claim 1, characterized in that: The fixing structure comprises a plurality of grooves (4) arranged on the mating surface (2), the plurality of grooves (4) being fluidically connected to each other, a vacuum interface (5) being arranged on the mating surface (2), one end of the vacuum interface (5) being connected to a vacuum generating device, and the other end of the vacuum interface (5) being connected to at least one of the grooves (4).
3. The fixing device according to claim 1, characterized in that: The matching surface (2) is one of a cylindrical surface, an elliptical cylindrical surface, an at least partially spherical surface, and an at least partially ellipsoidal surface.
4. The fixing device according to claim 2, characterized in that: The plurality of grooves (4) are arranged in a one-dimensional array or a two-dimensional array.
5. The fixing device according to claim 2, characterized in that: The plurality of grooves (4) include one or more mutually parallel longitudinal grooves (4) extending along the longitudinal direction of the mating surface (2) and one or more mutually parallel transverse grooves (4) extending along the transverse direction of the mating surface (2).
6. The fixing device according to any one of claims 1 to 5, characterized in that: The main body (1) further comprises a first extension surface (6) and a second extension surface (7) extending towards both sides of the matching surface (2).
7. The fixing device according to claim 6, characterized in that: The first extension surface (6) and / or the second extension surface (7) is provided with one or more positioning holes (8).
8. The fixing device according to claim 7, characterized in that: A positioning pin is inserted into the positioning hole (8) to limit the position of the special-shaped contour part (3).
9. The fixing device according to claim 2, characterized in that: Also includes: A vacuum generating device is connected to the vacuum interface (5) via an exhaust pipe.
10. The fixing device according to claim 9, characterized in that: The vacuum generating device is an air pump.