Clamping structure of aviation thin-wall frame part

Abstract

The utility model discloses a clamping structure of an aviation thin-wall frame part, which belongs to the field of industrial clamps and comprises a base plate in a circular truncated cone shape. The multiple clamping telescopic rods are annularly arranged on the base plate, the telescopic rods are all horizontally arranged, and the telescopic directions of the telescopic rods are all aligned with the circle center of the base plate; the buffering clamping head is in a shoe-shaped gold ingot shape in an unstressed state, the buffering clamping head can be rotationally connected to the telescopic end of the clamping telescopic rod in the left-right direction, and the buffering clamping head is made of a soft material; the clamping device has the advantages that the buffer chucks are rotationally connected to the ends of the clamping telescopic rods, the surfaces of thin-wall frame parts can be better attached, the surfaces of the parts cannot be abraded, and the clamping device is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial clamps, in particular to a clamping structure for aviation thin-wall frame parts. Background Art

[0002] The aviation industry is the most advanced industry in the industry. Every part in the aviation industry needs to work reliably and permanently under high temperature, high pressure and high stress. These aviation parts often need to be fixed with fixtures, and the clamping of thin-walled frame parts requires more special fixtures. It is necessary to ensure that the thin-walled frame parts will not be deformed due to the clamping force of the fixture, so multi-jaw chucks are usually used.

[0003] There are more contact points between the multi-jaw chuck and the thin-walled frame parts, and the force is more evenly distributed, which can avoid the problem of part deformation caused by greater force at one point. However, there is also a problem. The contact point between the chuck and the part is too rigid and the fit with the part is very small. Too little clamping force will cause the part to loosen, and too much clamping force will cause surface wear of the part.

[0004] To this end, we propose a clamping structure for aviation thin-walled frame parts. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a clamping structure for aviation thin-wall frame parts.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is:

[0007] A clamping structure for aviation thin-walled frame parts comprises a chassis in the shape of a truncated cone; a plurality of clamping telescopic rods which are circumferentially arranged on the chassis, the clamping telescopic rods being all arranged horizontally and the telescopic directions being all aligned with the center of the chassis; a buffer chuck which is in the shape of a gold ingot when not under stress, can be rotated in the left-right direction and connected to the telescopic end of the clamping telescopic rod, and is made of a soft material.

[0008] A plurality of clamping telescopic rods are circumferentially arranged on the chassis, the plurality of clamping telescopic rods are equivalent to the claws of a multi-claw chuck, and a deformable buffer chuck is arranged at the telescopic end of the clamping telescopic rod, and the buffer chuck is in the shape of a gold ingot when not under force. The buffer chuck is hinged to the end of the clamping telescopic rod and can be rotated left and right, so that the buffer chuck can better fit the thin-walled frame parts with curvature, and can effectively avoid the buffer chuck from causing wear on the surface of the thin-walled frame parts, and can also clamp.

[0009] It is further defined that the clamping telescopic rod includes an oil pump, an oil cylinder and a piston rod, the oil pump is used to drive the piston rod to extend and retract in the oil cylinder, the end of the piston rod is provided with a horizontal connecting plate, and the buffer clamp is provided with two hinged ears, the interval between the two hinged ears matches the thickness of the connecting plate, and the buffer clamp is rotatably connected to the end of the piston rod through a rotating pin passing through the hinged ear and the connecting plate.

[0010] It is further defined that a number of mounting platforms are provided on the top surface of the chassis, each mounting platform is vertically provided with a mounting plate, and the tail of the oil cylinder is fixedly connected to the mounting plate; providing a mounting platform and a mounting plate can increase the clamping height of the clamping telescopic rod to adapt to parts of different heights, and can also make the bottom of the part suspended to facilitate the processing of the bottom.

[0011] It is further defined that a lifting hole is opened in the middle of the chassis, and a lifting platform is slidably provided in the lifting hole, and the lifting platform is lifted and lowered in the lifting hole through a lifting mechanism; a lifting platform is provided to support and lift the parts so that the height of the parts matches the height of the clamping telescopic rod, thereby facilitating the clamping of the parts.

[0012] The lifting mechanism comprises a lifting transmission hole, a lifting screw rod, a first bevel gear, a second bevel gear and a lifting motor, a limiting groove and a limiting strip; the transmission hole is arranged at the center position of the bottom surface of the lifting hole, the first bevel gear is rotatably arranged on the chassis in the transmission hole, the lifting screw rod is fixedly arranged on the first bevel gear, the second bevel gear is fixedly arranged on the output shaft of the lifting motor and the second bevel gear is meshed with the first bevel gear, the lifting platform is threadedly connected to the lifting screw rod, the lifting motor is embedded in the chassis, the limiting strip is vertically arranged on the circumference of the lifting platform, and the limiting groove is vertically arranged on the inner wall of the lifting hole; the second bevel gear is driven to rotate by the rotation of the lifting motor, the second bevel gear is driven to rotate by the rotation of the second bevel gear, the first bevel gear is driven to rotate synchronously by the rotation of the first bevel gear, and the lifting platform cannot rotate due to the cooperation of the limiting strip and the limiting groove, so the lifting platform performs lifting movement on the lifting screw rod to realize the lifting function, which is very convenient.

[0013] It is further defined that each mounting vertical plate is provided with two inclined reinforcing rods, and the two reinforcing rods are respectively connected to the circumferential surface on the left and right sides of the cylinder; the provision of two reinforcing rods in this way can enhance the strength of the clamping telescopic rod, and can effectively share the left and right forces of the clamping telescopic rod when clamping the surface of a curved part, thereby improving the stability of the device.

[0014] The utility model has the following beneficial effects: the buffer clamp can be better fitted to the surface of the thin-walled frame part by rotating the end of the clamping telescopic rod, and will not cause wear to the surface of the part, and has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a top view of the utility model;

[0016] Figure 2 The utility model is a schematic diagram of the internal structure of the chassis from a front view.

[0017] The symbols of the components are as follows:

[0018] Chassis 1, mounting platform 11, mounting vertical plate 12, lifting hole 13, clamping telescopic rod 2, oil cylinder 21, piston rod 22, connecting plate 23, buffer chuck 3, hinged ear 31, lifting mechanism 4, transmission hole 41, lifting screw rod 42, first bevel gear 43, second bevel gear 44, lifting motor 45, limit groove 46, limit strip 47, lifting platform 5, reinforcing rod 6. DETAILED DESCRIPTION

[0019] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0020] Example:

[0021] like Figure 1 and Figure 2As shown, a clamping structure for aviation thin-walled frame parts includes a chassis 1, a clamping telescopic rod 2, a buffer clamp 3 and a lifting mechanism 4; the chassis 1 is in a truncated cone shape, and a plurality of mounting platforms 11 are provided on the top surface of the chassis 1, and a mounting vertical plate 12 is vertically provided on each mounting platform 11; a lifting hole 13 is opened in the middle of the truncated cone, and a lifting platform 5 is slidably provided in the lifting hole 13, and the lifting platform 5 is lifted and lowered in the lifting hole 13 by the lifting mechanism 4; four clamping telescopic rods 2 are provided, and the four clamping telescopic rods 2 are circumferentially arranged at On the chassis 1, the clamping telescopic rod 2 includes an oil pump, an oil cylinder 21 and a piston rod 22. The oil pump is used to drive the piston rod 22 to extend and retract in the oil cylinder 21. The tail of the oil cylinder 21 is fixedly connected to the mounting plate 12 and the telescopic direction is aligned with the center of the chassis 1. Two inclined reinforcing rods 6 are provided on each mounting plate 12. The two reinforcing rods 6 are respectively connected to the circumference of the left and right sides of the oil cylinder 21; the buffer clamp 3 is in the shape of a gold ingot when not under force, and the end of the piston rod 22 is provided with a horizontal connecting plate 23. Two hinged ears 31 are provided on the head 3, and the interval between the two hinged ears 31 matches the thickness of the connecting plate 23. The buffer chuck 3 is rotatably connected to the end of the piston rod 22 through a rotating pin passing through the hinged ears 31 and the connecting plate 23. The buffer chuck 3 is made of soft material; the lifting mechanism 4 includes a transmission hole 41, a lifting screw rod 42, a first bevel gear 43, a second bevel gear 44 and a lifting motor 45, a limit groove 46 and a limit strip 47; the transmission hole 41 is opened at the center of the bottom surface of the lifting hole 13, The first bevel gear 43 is rotatably arranged on the chassis 1 in the transmission hole 41, the lifting screw 42 is fixedly arranged on the first bevel gear 43, the second bevel gear 44 is fixedly arranged on the output shaft of the lifting motor 45 and the second bevel gear 44 is meshed with the first bevel gear 43, the lifting platform 5 is threadedly connected to the lifting screw 42, the lifting motor 45 is installed from the bottom of the chassis 1 and embedded in the chassis 1, the limit strip 47 is vertically arranged on the circumference of the lifting platform 5, and the limit groove 46 is vertically opened on the inner wall of the lifting hole 13.

[0022] A plurality of clamping telescopic rods 2 are circumferentially arranged on the chassis 1, and the plurality of clamping telescopic rods 2 are equivalent to the claws of a multi-claw chuck. A deformable buffer chuck 3 is arranged at the telescopic end of the clamping telescopic rod 2, and the buffer chuck 3 is in the shape of a gold ingot when not under force. The buffer chuck 3 is hinged to the end of the clamping telescopic rod 2 and can be rotated left and right, so that the buffer chuck 3 can better fit the thin-walled frame parts with curvature, and can effectively avoid the buffer chuck 3 from causing wear on the surface of the thin-walled frame parts, and can also clamp; a mounting platform 11 and a mounting vertical plate 12 are arranged to increase the clamping height of the clamping telescopic rod 2 to adapt to parts of different heights, and the bottom of the part can also be suspended to facilitate the processing of the bottom; A lifting platform 5 can support and lift parts so that the height of the parts matches the height of the clamping telescopic rod 2, which is convenient for clamping parts; the second bevel gear 44 is driven to rotate by the lifting motor 45, and the second bevel gear 44 is driven to rotate by the first bevel gear 43, and the first bevel gear 43 is driven to rotate synchronously by the lifting screw 42. The lifting platform 5 cannot rotate due to the cooperation of the limit strip 47 and the limit groove 46, so the lifting platform 5 performs a lifting movement on the lifting screw 42 to realize the lifting function, which is very convenient; the two reinforcing rods 6 are set in this way to enhance the strength of the clamping telescopic rod 2, and can effectively share the left and right forces of the clamping telescopic rod 2 when clamping the curved surface of the part, thereby improving the stability of the device.

[0023] It should be noted that the clamping telescopic rod in this article is a telescopic cylinder commonly used in the prior art, so no detailed description is given.

Claims

1. A clamping structure for aviation thin-walled frame parts, characterized in that: include: The bottom plate (1) is in the shape of a truncated cone; A plurality of clamping and telescopic rods (2) are provided, wherein the plurality of clamping and telescopic rods (2) are circumferentially arranged on the chassis (1), and the clamping and telescopic rods (2) are all arranged horizontally and the telescopic directions are all aligned with the center of the chassis (1); The buffer clamp (3) is in the shape of a gold ingot when not under stress. The buffer clamp (3) can be rotated in the left-right direction and connected to the telescopic end of the clamping telescopic rod (2). The buffer clamp (3) is made of a soft material.

2. The clamping structure of the aviation thin-walled frame parts according to claim 1 is characterized in that: The clamping telescopic rod (2) comprises an oil pump, an oil cylinder (21) and a piston rod (22); the oil pump is used to drive the piston rod (22) to extend and retract in the oil cylinder (21); the end of the piston rod (22) is provided with a horizontal connecting plate (23); the buffer clamp (3) is provided with two hinged ears (31); the interval between the two hinged ears (31) matches the thickness of the connecting plate (23); the buffer clamp (3) is rotatably connected to the end of the piston rod (22) by a rotating pin passing through the hinged ear (31) and the connecting plate (23).

3. The clamping structure of the aviation thin-walled frame parts according to claim 2 is characterized in that: A plurality of mounting platforms (11) are also provided on the top surface of the chassis (1), each of the mounting platforms (11) is vertically provided with a mounting vertical plate (12), and the tail of the oil cylinder (21) is fixedly connected to the mounting vertical plate (12).

4. The clamping structure of the aviation thin-walled frame parts according to claim 3 is characterized in that: A lifting hole (13) is provided in the middle of the chassis (1), a lifting platform (5) is slidably arranged in the lifting hole (13), and the lifting platform (5) is lifted and lowered in the lifting hole (13) by a lifting mechanism (4).

5. The clamping structure of aviation thin-walled frame parts according to claim 4, characterized in that: The lifting mechanism (4) comprises a lifting transmission hole (41), a lifting screw rod (42), a first bevel gear (43), a second bevel gear (44), a lifting motor (45), a limiting groove (46) and a limiting strip (47); the transmission hole (41) is opened at the center position of the bottom surface of the lifting hole (13); the first bevel gear (43) is rotatably arranged on the chassis (1) in the transmission hole (41); the lifting screw rod (42) is fixedly arranged on the first bevel gear (44) 3), the second bevel gear (44) is fixedly arranged on the output shaft of the lifting motor (45) and the second bevel gear (44) is meshed with the first bevel gear (43), the lifting motor (45) is embedded in the chassis (1), the lifting platform (5) is threadedly connected to the lifting screw (42), the limiting strip (47) is vertically arranged on the circumference of the lifting platform (5), and the limiting groove (46) is vertically opened on the inner wall of the lifting hole (13).

6. The clamping structure of the aviation thin-walled frame parts according to claim 3, characterized in that: Two inclined reinforcing rods (6) are provided on each of the mounting vertical plates (12), and the two reinforcing rods (6) are respectively connected to the circumferential surfaces on the left and right sides of the oil cylinder (21).

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