Adjustable quick-change clamp for aircraft stringer joint machining

Abstract

The utility model relates to the technical field of clamps, and discloses an adjustable quick-change clamp for processing an aircraft stringer joint, which comprises a support frame, a fixing frame is fixedly arranged on the upper surface of the support frame, a motor is fixedly arranged on the upper surface of the fixing frame, and the motor is fixedly arranged on the upper surface of the fixing frame. The output end of the motor is fixedly connected with a threaded rod. According to the adjustable quick-change clamp for aircraft stringer joint machining, a motor is started, a threaded rod rotates to move a movable frame to a proper position, then an adjusting rod is adjusted to enable a clamping plate to clamp the surface of an aircraft stringer joint, friction is increased through arrangement of a threaded strip, meanwhile, the extrusion force is buffered to a certain degree, and meanwhile in the fixing process, the clamping plate is clamped to the surface of the aircraft stringer joint. The limiting plate is arranged in an L shape, one end of the limiting plate makes contact with the surface of the airplane stringer connector, the limiting plate rotates on the cambered surface of the straight rod, then the other end of the limiting plate limits the upper surface of the airplane stringer connector, and fixing of the airplane stringer connector is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, concretely is a kind of adjustable quick-change clamp for aircraft stringer joint machining. BACKGROUND

[0002] In the mechanical manufacturing process, the device is used to fix the processing object, so that it occupies the correct position to accept construction or detection, also called fixture, in broad sense, in any process in the process, the device for quickly, conveniently and safely installing workpiece can be called fixture, such as welding fixture, inspection fixture, assembly fixture, machine tool fixture etc., the quick-change clamp for aircraft stringer joint machining is a clamping tool for clamping aircraft stringer joint.

[0003] According to the quick-change clamp for aircraft stringer joint machining (publication number: CN 210790710 U) disclosed, the quick-change clamp for aircraft stringer joint machining in the above application can conveniently adjust the placing height of processing table, so as to conveniently use the clamp.

[0004] But the above-mentioned equipment in actual use process, clamp is clamped to the both sides of aircraft stringer joint, ensures the stability of aircraft stringer joint, prevents the both sides of aircraft stringer joint from being damaged, generally clamping force is not too high, the height of aircraft stringer joint is not limited, and movement is caused in processing process;In view of this, we provide a kind of quick-change clamp for aircraft stringer joint machining. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of quick-change clamp for aircraft stringer joint machining to solve the problems in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of quick-change clamp for aircraft stringer joint machining, including support frame, the upper surface of the support frame is fixedly installed with fixed frame, the upper surface of the fixed frame is fixedly installed with motor, the output of the motor is fixedly connected with threaded rod, the arc surface of the threaded rod is connected with moving frame, the upper of the support frame is provided with adjusting mechanism, the upper of the support frame is provided with promoting mechanism, the adjusting mechanism includes:

[0007] Adjusting rod, the adjusting rod is screw-connected in the inner wall of moving frame, the end of the adjusting rod is movably connected with clamping plate, the outer wall of the clamping plate is fixedly installed with threaded strip, the outer wall of the side, away from threaded strip, of the clamping plate is fixedly installed with telescopic rod, the surface of the clamping plate is provided with movable slot;

[0008] A straight rod is fixedly installed on the inner wall of the movable groove, and the curved surface of the straight rod is fixedly connected with a torsion spring, and the inner wall of the end of the torsion spring away from the curved surface of the straight rod is fixedly connected with the inner wall of a limiting plate.

[0009] Preferably, the promoting mechanism comprises a groove, which is arranged on the outer wall of the limiting plate, the inner wall of the groove is fixedly connected with a round rod, the curved surface of the round rod is fixedly connected with a volute spring, and the end of the volute spring away from the curved surface of the round rod is fixedly connected with a stabilizing plate.

[0010] Preferably, the number of the stabilizing plates is two, and the two stabilizing plates are arranged in a mirror image splay shape, so that the two stabilizing plates stably clamp the upper surface of the aircraft longeron joint.

[0011] Preferably, the surface of the stabilizing plate is provided with a rotating hole, the diameter of the rotating hole is matched with the diameter of the round rod, the stabilizing plate is sleeved on the curved surface of the round rod, and the stabilizing plate can rotate on the curved surface of the round rod to limit the upper end of the aircraft longeron joint.

[0012] Preferably, the surface of the limiting plate is provided with a rotating hole, the diameter of the rotating hole is matched with the diameter of the straight rod, and the limiting plate is sleeved on the curved surface of the straight rod, so that the limiting plate can rotate on the curved surface of the straight rod.

[0013] Preferably, the surface of the moving frame is provided with a threaded hole, the adjusting rod penetrates through the surface of the moving frame, the adjusting rod can be adjusted on the moving frame, and the clamping plate can be fixed on the aircraft longeron joint.

[0014] Preferably, the outer wall of the moving frame is fixedly connected with the end of the telescopic rod away from the clamping plate, the number of the telescopic rods is two, and the two telescopic rods are arranged in a mirror image on the surface of the moving frame, so that the telescopic rods have a stabilizing effect on the movement of the clamping plate.

[0015] Compared with the prior art, the adjustable quick-change clamp for aircraft longeron joint machining has the following beneficial effects:

[0016] 1. The adjustable quick-change clamp for aircraft longeron joint machining is provided with an adjusting mechanism, the motor is started, the threaded rod rotates to move the moving frame to a suitable position, the adjusting rod is adjusted to make the clamping plate clamp the surface of the aircraft longeron joint, the threaded rod increases the friction and buffers the extrusion force to a certain extent, the L-shaped limiting plate is fixed, one end of the limiting plate contacts the surface of the aircraft longeron joint to make the limiting plate rotate on the curved surface of the straight rod, and the other end of the limiting plate limits the upper surface of the aircraft longeron joint, so that the aircraft longeron joint is fixed.

[0017] 2. The adjustable quick-change clamp for aircraft longeron joint machining is characterized in that the promoting mechanism is arranged, the splayed stabilizing plate is driven by the volute spring, the stabilizing plate rotates on the arc surface of the round rod, thereby stably fixing the upper surface of the aircraft longeron joint, and the stability of the aircraft longeron joint is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the structural main body of the utility model;

[0019] Figure 2 It is a schematic view of the structural threaded rod of the utility model;

[0020] Figure 3 It is a schematic view of the structural limiting plate of the utility model;

[0021] Figure 4 It is a schematic view of the structural stabilizing plate of the utility model.

[0022] In the drawing: 1, support frame; 2, fixed frame; 3, adjusting mechanism; 301, adjusting rod; 302, clamping plate; 303, threaded strip; 304, telescopic rod; 305, movable groove; 306, straight rod; 307, torsional spring; 308, limiting plate; 4, promoting mechanism; 401, groove; 402, round rod; 403, volute spring; 404, stabilizing plate; 5, motor; 6, threaded rod; 7, moving frame. DETAILED DESCRIPTION

[0023] As Figures 1-4 shown, the utility model provides a technical scheme: a kind of adjustable quick-change clamp for aircraft longeron joint machining, including support frame 1, the upper surface of support frame 1 is fixedly installed with fixed frame 2, the upper surface of fixed frame 2 is fixedly installed with motor 5, the output of motor 5 is fixedly connected threaded rod 6, threaded rod 6 is screw thread connected with moving frame 7, the upper of support frame 1 is provided with adjusting mechanism 3, the upper of support frame 1 is provided with promoting mechanism 4, adjusting mechanism 3 includes adjusting rod 301, clamping plate 302, threaded strip 303, telescopic rod 304, movable groove 305, straight rod 306, torsional spring 307, limiting plate 308.

[0024] In an embodiment of the utility model, adjusting rod 301 is screw thread connected in the inner wall of moving frame 7, the end of adjusting rod 301 is movably connected with clamping plate 302, the outer wall of clamping plate 302 is fixedly installed with threaded strip 303, the outer wall of the side of clamping plate 302 away from threaded strip 303 is fixedly installed with telescopic rod 304, the surface of clamping plate 302 is provided with movable groove 305, straight rod 306 is fixedly installed in the inner wall of movable groove 305, the arc surface of straight rod 306 is fixedly connected torsional spring 307, the inner wall of limiting plate 308 is fixedly connected to the end of torsional spring 307 away from the arc surface of straight rod 306.

[0025] In addition, the promoting mechanism 4 comprises a groove 401, the groove 401 is opened in the outer wall of the limiting plate 308, the inner wall of the groove 401 is fixedly connected with a round rod 402, the arc surface of the round rod 402 is fixedly connected with a volute spring 403, one end of the arc surface of the volute spring 403 away from the round rod 402 is fixedly connected with a stabilizing plate 404, the number of the stabilizing plate 404 is provided with two groups, the two groups of stabilizing plates 404 are mirror image splayed, so that the two stabilizing plates 404 stably clamp the upper surface of the aircraft longeron joint, the surface of the stabilizing plate 404 is provided with a rotating hole, the diameter of the rotating hole is matched with the diameter of the round rod 402, the stabilizing plate 404 is sleeved on the arc surface of the round rod 402, and the stabilizing plate 404 can rotate on the arc surface of the round rod 402 to limit the upper end of the aircraft longeron joint.

[0026] In the embodiment of the utility model, the surface of the limiting plate 308 is provided with a rotating hole, the diameter of the rotating hole is matched with the diameter of the straight rod 306, the limiting plate 308 is sleeved on the arc surface of the straight rod 306, so that the limiting plate 308 can rotate on the arc surface of the straight rod 306, the surface of the moving frame 7 is provided with a threaded hole, the adjusting rod 301 penetrates the surface of the moving frame 7, so that the adjusting rod 301 can be adjusted on the moving frame 7, the clamping plate 302 is fixed to the aircraft longeron joint, one end of the telescopic rod 304 away from the clamping plate 302 is fixedly connected with the outer wall of the moving frame 7, the number of the telescopic rod 304 is provided with two, the two telescopic rods 304 are mirror image distributed on the surface of the moving frame 7, the telescopic rod 304 has a stable effect on the movement of the clamping plate 302, the threaded rod 6 is rotatably connected with the inner wall of the fixed frame 2, the upper surface of the fixed frame 2 is provided with an adjusting groove, the shape of the adjusting groove is matched with the shape of the moving frame 7, so as to facilitate the adjustment of the height of the moving frame 7, and the number of the fixed frame 2 is provided with a plurality of fixed frames 2, which are rectangularly distributed on the upper surface of the supporting frame 1, so as to facilitate clamping and fixing.

[0027] In the utility model, when in use, the motor 5 is started, the threaded rod 6 is rotated to move the moving frame 7 to a suitable position, and then the adjusting rod 301 is adjusted to make the clamping plate 302 clamp the surface of the aircraft longeron joint, the setting of the threaded strip 303 increases the friction and buffers the pressing force to a certain extent, and in the process of fixing, the L-shaped limiting plate 308 is arranged, one end of the limiting plate 308 contacts the surface of the aircraft longeron joint, so that the limiting plate 308 rotates on the arc surface of the straight rod 306, and then the other end of the limiting plate 308 limits the upper surface of the aircraft longeron joint, so as to ensure the fixation of the aircraft longeron joint.

[0028] Further, the splayed stabilizing plate 404 rotates on the arc surface of the round rod 402 under the action of the volute spring 403, and then stably fixes the upper surface of the aircraft longeron joint, so as to ensure the stability of the clamping of the aircraft longeron joint.

[0029] The utility model has made the detailed description to the utility model generally above, but can make some modification or improvement to it on the basis of the utility model, this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the utility model thought spirit, all are within the protection scope of the utility model.

Claims

1. An adjustable quick-change fixture for machining aircraft stringer joints, comprising a support frame (1), a fixed frame (2) fixedly mounted on the upper surface of the support frame (1), a motor (5) fixedly mounted on the upper surface of the fixed frame (2), a threaded rod (6) fixedly connected to the output end of the motor (5), and a movable frame (7) threadedly connected to the arc surface of the threaded rod (6), characterized in that: An adjustment mechanism (3) is provided above the support frame (1), and a promoting mechanism (4) is provided above the support frame (1). The adjustment mechanism (3) includes: An adjusting rod (301) is threaded to the inner wall of the movable frame (7). A clamping plate (302) is movably connected to the end of the adjusting rod (301). A threaded strip (303) is fixedly installed on the outer wall of the clamping plate (302). A telescopic rod (304) is fixedly installed on the outer wall of the clamping plate (302) away from the threaded strip (303). A movable groove (305) is opened on the surface of the clamping plate (302). A straight rod (306) is fixedly installed on the inner wall of the movable groove (305). A torsion spring (307) is fixedly connected to the arc surface of the straight rod (306). The end of the torsion spring (307) away from the arc surface of the straight rod (306) is fixedly connected to the inner wall of the limiting plate (308).

2. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 1, characterized in that: The promoting mechanism (4) includes a groove (401) which is formed on the outer wall of the limiting plate (308). A round rod (402) is fixedly connected to the inner wall of the groove (401). A spiral spring (403) is fixedly connected to the arc surface of the round rod (402). A stabilizing plate (404) is fixedly connected to one end of the spiral spring (403) away from the arc surface of the round rod (402).

3. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 2, characterized in that: The number of the stabilizing plates (404) is set in two sets, and the two sets of stabilizing plates (404) are arranged in a mirror figure-eight shape.

4. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 2, characterized in that: The surface of the stabilizing plate (404) is provided with a rotating hole, the diameter of which is adapted to the diameter of the round rod (402), and the stabilizing plate (404) is sleeved on the arc surface of the round rod (402).

5. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 1, characterized in that: The limiting plate (308) has a rotating hole on its surface, the diameter of which is adapted to the diameter of the straight rod (306), and the limiting plate (308) is sleeved on the arc surface of the straight rod (306).

6. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 1, characterized in that: The surface of the movable frame (7) is provided with threaded holes, and the adjusting rod (301) passes through the surface of the movable frame (7).

7. The adjustable quick-change fixture for machining aircraft stringer joints according to claim 1, characterized in that: The end of the telescopic rod (304) away from the clamp (302) is fixedly connected to the outer wall of the movable frame (7). There are two telescopic rods (304), and the two telescopic rods (304) are distributed in a mirror image on the surface of the movable frame (7).

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