Multi-gear linkage clamping device for aerospace tube cutting and blanking equipment

Abstract

The present invention discloses a multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment, comprising a first mounting plate and a plurality of clamping plates, wherein a first through hole is provided at the central position of the first mounting plate, a plurality of clamping plates are arranged around the first through hole, one end of the clamping plate is rotatably connected to the first mounting plate, the other end of the clamping plate is close to the axis of the first through hole, and the other ends of the plurality of clamping plates enclose a clamping space; the plurality of clamping plates move synchronously, thereby making the clamping space larger or smaller; at least two clamping plates form a clamping group, and the spacing between the plurality of clamping plates of the same clamping group and the first mounting plate is different. In this way, the clamping device can clamp a variety of pipes of different specifications and can clamp any position of the catheter. During the clamping operation, the clamping device has a longer clamping length in the axial direction of the catheter and has more abutment positions with the catheter in the radial direction of the catheter, so the clamping is more secure.

Description

Technical Field

[0001] The present invention relates to the field of aerospace, and in particular to a multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment. Background Art

[0002] Aircraft and rockets are designed with a large number of metal conduits. Due to process requirements, the outer diameter specifications of the conduits are very diverse, which brings difficulties to the clamping of the conduits during processing.

[0003] The patent document with publication number CN216371124U discloses a clamping mechanism for quick-installed flange processing, including a base plate. By setting the base plate, the base plate can be used to connect and fix the whole. The upper surface of the base plate is fixedly connected to the lower surface of the support plate. By setting the support plate, the support plate can fix the gear rod. At the same time, the support plate can set the height of the gear rod to keep the height of the gear rod and the gear ring consistent. The upper surface of the support plate is fixedly connected with the gear rod. The upper surface of the base plate is fixedly connected to the lower surface of the control device. The upper surface of the control device is fixedly connected to the lower surface of the fixed plate. By setting the fixed plate, the fixed plate can support the workpiece, which is convenient for placing the workpiece. Three movable structures are provided on the upper surface of the fixed plate. The three movable structures are provided on the inner wall of the disc. The outer surface of the disc is fixedly connected to the inner surface of the gear ring. The movable structure includes a connecting block fixedly connected to the inner wall of the disc, which is hinged to a hinged rod. The upper surface of the hinged rod has a through hole, which is arranged in an arc shape. A guide rod is disposed within the through hole, and the bottom end of the guide rod is fixedly connected to the upper surface of the fixed plate. Therefore, it can be seen that the mechanism in the prior art can only clamp the end of the catheter, and the clamping range and clamping points are limited. Summary of the Invention

[0004] In order to solve the problems in the prior art, the purpose of the present invention is to provide a multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment. The clamping device can clamp a variety of pipes of different specifications and can clamp any position of the catheter. During the clamping operation, the clamping device has a longer clamping length in the axial direction of the catheter and has more abutment positions with the catheter in the radial direction of the catheter, so the clamping is more secure.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment, comprising a first mounting plate and multiple clamping plates, a first through hole is opened at the central position of the first mounting plate, and multiple clamping plates are arranged around the first through hole, one end of the clamping plate is rotatably connected to the first mounting plate, and the other end of the clamping plate is close to the axis of the first through hole, and the other ends of the multiple clamping plates enclose a clamping space; it also includes a driving mechanism that can drive the multiple clamping plates to rotate synchronously, when the driving mechanism drives the multiple clamping plates to rotate synchronously, the other end of the clamping plate is close to or away from the axis of the first through hole, thereby enlarging or shrinking the clamping space; at least two clamping plates form a clamping group, and the multiple clamping plates in the same clamping group have different spacings from the first mounting plate.

[0006] Preferably, the multiple clamping plates of the same clamping group are arranged in order from near to far according to the distance between them and the first mounting plate.

[0007] Preferably, clamping plates are provided on both sides of the first mounting plate.

[0008] Preferably, the clamping plate includes a first connecting surface, a second connecting surface and a third connecting surface, the two ends of the third connecting surface are respectively connected to one end of the first connecting surface and one end of the second connecting surface, the other end of the first connecting surface is connected to the other end of the second connecting surface, and the first connecting surface can be abutted against the outer wall of the catheter.

[0009] Preferably, the first connecting surface and the second connecting surface are both arc-shaped, and the radius of the first connecting surface is smaller than the radius of the second connecting surface.

[0010] Preferably, the clamping plate is rotatably mounted on the first mounting plate via a synchronization shaft, a synchronization gear is mounted on the synchronization shaft, and the driving mechanism includes a second mounting plate, the first mounting plate is fixedly mounted in front of the second mounting plate, a gear ring is rotatably mounted on the second mounting plate, and the inner teeth of the gear ring are engaged with the synchronization gear for transmission.

[0011] Preferably, the driving mechanism further includes a driving gear and a servo motor, both of which are mounted on the second mounting plate, the output end of the servo motor is connected to the driving gear, and the driving gear and the outer teeth of the gear ring are meshed for transmission.

[0012] Preferably, the outer diameter of the driving gear is smaller than the outer diameter of the ring gear.

[0013] Preferably, a second through hole coaxial with the first through hole is formed on the second mounting plate.

[0014] The beneficial effects of the technical solution of the present invention are as follows: 1) by driving the clamping plate to rotate, the clamping range of the clamping mechanism can be adjusted, so that the clamping device can match catheters of more specifications; 2) multiple clamping discs in the same clamping group are stacked, which can not only increase the clamping length of the clamping device in the axial direction of the catheter, but also reduce the distance between two adjacent clamping plates, making the clamping plates denser and increasing the area of ​​connection between the catheter and the clamping device; 3) the catheter can pass through the through hole, so that the clamping device can clamp any position of the catheter, and can clamp the catheter for auxiliary shaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure diagram of the multi-gear linkage clamping device in the present invention is as follows Figure 1 ;

[0016] Figure 2 The structure diagram of the multi-gear linkage clamping device in the present invention is as follows Figure 2 ;

[0017] Figure 3 Schematic diagram of the connection structure between the gear ring and the clamping plate;

[0018] Figure 4 Schematic diagram of the connection structure between the clamping plate and the first mounting plate;

[0019] Figure 5 Schematic diagram of the position and structure of two adjacent clamping groups;

[0020] Figure 6 Schematic diagram of the structure of the first clamping plate.

[0021] Figure numerals: 1. First clamping plate; 10. Clamping group; 101. First connecting surface; 102. Second connecting surface; 103. Third connecting surface; 11. First synchronous gear; 12. First synchronous shaft; 2. Second clamping plate; 21. Second synchronous gear; 22.; 3. Third clamping plate; 31. Third synchronous gear; 32. Third synchronous shaft; 4. Fourth clamping plate; 41. Fourth synchronous gear; 42. Fourth synchronous shaft; 5. Fifth clamping plate; 51. Fifth synchronous gear; 52. Fifth synchronous shaft; 6. Servo motor; 61. Second mounting plate; 62. Drive gear; 63. Ring gear; 631. Connecting part; 64. Positioning ring; 65. First mounting plate; 66. Limiting column; 67. Baffle. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 should not be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0025] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0027] And in the embodiment, Figure 1 The position shown is based on the position of the baffle 67 being the front and the position of the servo motor 6 being the back, and so on.

[0028] Example

[0029] A multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment includes a first mounting plate 65 and multiple clamping plates. A first through-hole is provided in the center of the first mounting plate 65. Multiple clamping plates are arranged around the first through-hole. One end of the clamping plate is rotatably connected to the first mounting plate 65, and the other end of the clamping plate is close to the axis of the first through-hole. The other ends of the multiple clamping plates enclose a clamping space. The device also includes a driving mechanism capable of driving the multiple clamping plates to rotate synchronously. When the driving mechanism drives the multiple clamping plates to rotate synchronously, the other end of the clamping plate is moved closer to or away from the axis of the first through-hole, thereby enlarging or shrinking the clamping space. With this arrangement, the clamping device has the function of automatically centering the catheter, and the same clamping device can clamp pipes of different specifications. The points where the clamping device falls on the catheter are more evenly distributed, so that the force on the catheter is more uniform and the clamping effect is better.

[0030] In this embodiment, at least two clamping plates form a clamping group 10, and the spacing between the multiple clamping plates of the same clamping group 10 and the first mounting plate 65 is different. This arrangement can increase the axial clamping length of the clamping device, and the spacing between two adjacent clamping plates is no longer limited by the width of the clamping plates, so that the clamping plates in the same clamping group 10 can be stacked, making the spacing between the clamping plates more compact. Specifically, Figure 1-5 As shown, in this embodiment, the clamping group includes five clamping plates, which are respectively the first clamping plate 1, the second clamping plate 2, the third clamping plate 3, the fourth clamping plate 4 and the fifth clamping plate 5 arranged axially along the first through hole, among which the first clamping plate 1 is closest to the first mounting plate, and the fifth clamping plate 5 is farthest from the first mounting plate.

[0031] In order to further improve the clamping range of the clamping mechanism, in this embodiment, Figure 4 and Figure 5 As shown, the clamping plate is rotatably mounted on the first mounting plate via a synchronization shaft, which passes through the first mounting plate, and clamping plates are fixedly mounted on both ends of the synchronization shaft. This arrangement enables clamping plates to be provided on both the front and rear sides of the first mounting plate, thereby further increasing the clamping range of the clamping mechanism. Specifically, as Figure 5As shown, the clamping group includes a first synchronous shaft 12, a second synchronous shaft 22, a third synchronous shaft 32, a fourth synchronous shaft 42, and a fifth synchronous shaft 52 that pass through the first mounting plate and are rotatably connected. The clamping group includes two first clamping plates 1, two second clamping plates 2, two third clamping plates 3, two fourth clamping plates 4, and two fifth clamping plates 5. The two first clamping plates 1 are fixed to both ends of the first synchronous shaft 12, the two second clamping plates 2 are fixed to both ends of the second synchronous shaft 22, the two third clamping plates 3 are fixed to both ends of the third synchronous shaft 32, the two fourth clamping plates 4 are fixed to both ends of the fourth synchronous shaft 42, and the two fifth clamping plates 5 are fixed to both ends of the first synchronous shaft 12. To facilitate the installation and positioning of each component, the lengths of the first synchronous shaft 12, the second synchronous shaft 22, the third synchronous shaft 32, the fourth synchronous shaft 42, and the fifth synchronous shaft 52 are reduced in sequence, and the distances between the two clamping plates installed on the same synchronous shaft and the first mounting plate are the same. In this way, the difficulty of installing the clamping device can be reduced, and the distance between two adjacent synchronous shafts can be reduced. The density of the clamping plate is higher and the clamping is more firm.

[0032] To further improve the clamping range, in this embodiment, the width of the clamping plate gradually becomes smaller. Taking the first clamping plate 1 as an example, Figure 6 As shown, the side surface of the first clamping plate 1 includes a first connecting surface 101, a second connecting surface 102 and a third connecting surface 103. The two ends of the third connecting surface 103 are respectively connected to one end of the first connecting surface 101 and one end of the second connecting surface 102, and the other end of the first connecting surface 101 is connected to the other end of the second connecting surface 102. The first connecting surface 101 can be against the outer wall of the catheter. In this way, the part where the first connecting surface 101 and the second connecting surface 102 on the clamping plate meet is pointed, which increases the clamping range of the clamping device and can avoid collision of the clamping plates. Furthermore, the first connecting surface 101 and the second connecting surface 102 are both arc-shaped, and the radius of the first connecting surface 101 is smaller than the radius of the second connecting surface 102. In this way, the clamping space is closer to a circle, and the fitting area between the clamping plate and the catheter is larger.

[0033] In order to drive multiple clamping plates to move simultaneously, in this embodiment, Figure 1-5As shown, a gear is fixedly mounted on the synchronization shaft, and the driving mechanism includes a second mounting plate 61, a first mounting plate 65 fixedly mounted in front of the second mounting plate 61, and a ring gear 63 is rotatably mounted on the second mounting plate 61. The internal teeth of the ring gear 63 mesh with the synchronization gear for transmission. In this way, the ring gear drives the multiple clamping plates around the outside of the first through hole to move synchronously, thereby maintaining the same movement amplitude of the multiple clamping plates, so that any clamping plate can be against the catheter, maintaining the stability of the clamping process. Specifically, the clamping group includes a first synchronization gear 11 mounted on the first synchronization shaft 12, a second synchronization gear 21 mounted on the second synchronization shaft 22, a third synchronization gear 31 mounted on the third synchronization shaft 32, a fourth synchronization gear 41 mounted on the fourth synchronization shaft 42, and a fifth synchronization gear 51 mounted on the fifth synchronization shaft 52. Each synchronization gear meshes with the internal teeth of the ring gear 63. Furthermore, the drive mechanism includes a drive gear 62 and a servo motor 6, both mounted on a second mounting plate 61. The output end of the servo motor 6 is connected to the drive gear 62, which meshes with the external teeth of a ring gear 63. The outer diameter of the drive gear 62 is smaller than that of the ring gear 63. Thus, the drive gear and the ring gear form a reduction mechanism, and the size of the clamping space is precisely controlled by the servo motor.

[0034] In the embodiment, a second through hole coaxial with the first through hole is formed on the second mounting plate 61. In this way, the conduit can pass through the first mounting plate and the second mounting plate, and the clamping position of the conduit can be freely changed.

[0035] To facilitate the installation and positioning of the ring gear, in this embodiment, an annular connecting portion 631 protrudes from the teeth, and a positioning ring 64 is fixed within the second through-hole. The connecting portion is inserted into the positioning ring and rotatably connected. The multiple clamping plates located between the first mounting plate 65 and the second mounting plate 61 are all located within the connecting portion 631. This facilitates the installation and positioning of the ring gear. To facilitate assembly of the device, in this embodiment, four threaded holes are defined at the front end of the second mounting plate, and four limiting posts 66 are fixed to the rear end of the first mounting plate 65. The four limiting posts 66 correspond to the four threaded holes in the second mounting plate 61. The first mounting plate 65 is fixed to the second mounting plate 611 via bolts that pass through the limiting posts 66 and connect to the threaded holes in the second mounting plate 61. A baffle 67 is fixed to the front end of the first mounting plate. A third through-hole coaxial with the first through-hole is defined in the center of the baffle. The multiple clamping plates located on the front side of the first mounting plate 65 are located within this third through-hole. In this way, the connection portion of the gear ring and the third through hole of the baffle 67 prevent the clamping plate from being exposed, thereby improving the safety of the device.

[0036] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A multi-gear linkage clamping device for aerospace duct cutting and blanking equipment, comprising a first mounting plate (65) and a plurality of clamping plates, wherein a first through hole is provided at a central position of the first mounting plate (65), the plurality of clamping plates are arranged around the first through hole, one end of the clamping plate is rotatably connected to the first mounting plate (65), the other end of the clamping plate is close to the axis of the first through hole, and the other ends of the plurality of clamping plates enclose a clamping space; further comprising a driving mechanism capable of driving the plurality of clamping plates to rotate synchronously, wherein when the driving mechanism drives the plurality of clamping plates to rotate synchronously, the other end of the clamping plate is moved close to or away from the axis of the first through hole, thereby enlarging or shrinking the clamping space; and characterized in that: At least two clamping plates form a clamping group (10), and the distances between the multiple clamping plates of the same clamping group (10) and the first mounting plate (65) are all different. The multiple clamping plates of the same clamping group (10) are arranged in order from near to far according to the distances between the multiple clamping plates and the first mounting plate (65), so that the multiple clamping plates in the same clamping group (10) are stacked front to back and can rotate independently; The side surface of the clamping plate includes a first connecting surface, a second connecting surface and a third connecting surface. The two ends of the third connecting surface are respectively connected to one end of the first connecting surface and one end of the second connecting surface, and the other end of the first connecting surface is connected to the other end of the second connecting surface. The first connecting surface can be abutted against the outer wall of the catheter; the first connecting surface and the second connecting surface are both arc-shaped and curved in the same direction. The radius of the first connecting surface is smaller than the radius of the second connecting surface, so that the clamping space is close to a circle.

2. The multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment according to claim 1, characterized in that: Clamping plates are provided on both the front and rear sides of the first mounting plate (65).

3. The multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment according to claim 1, characterized in that: The clamping plate is rotatably mounted on a first mounting plate (65) via a synchronizing shaft, a synchronizing gear is mounted on the synchronizing shaft, and the driving mechanism includes a second mounting plate (61), the first mounting plate (65) is fixedly mounted in front of the second mounting plate (61), a gear ring (63) is rotatably mounted on the second mounting plate (61), and the inner teeth of the gear ring (63) are meshed with the synchronizing gear for transmission.

4. The multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment according to claim 3, characterized in that: The driving mechanism further comprises a driving gear (62) and a servo motor (6), wherein the driving gear (62) and the servo motor (6) are both mounted on the second mounting plate (61), the output end of the servo motor (6) is connected to the driving gear (62), and the driving gear (62) and the outer teeth of the gear ring (63) are meshed for transmission.

5. The multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment according to claim 4, characterized in that: The outer diameter of the driving gear (62) is smaller than the outer diameter of the ring gear (63).

6. The multi-gear linkage clamping device for aerospace catheter cutting and blanking equipment according to claim 3, characterized in that: The second mounting plate (61) is provided with a second through hole coaxial with the first through hole.

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