CN104972314A - Adjustable automatic alignment clamp-type floating clamping device - Google Patents

Abstract

The invention discloses an adjustable automatic aligning pliers type floating clamping device, which comprises 1 chuck, 2 right calipers, 3 nuts, 4, adjusting bolts, 5 left calipers, 6 tangential locking sleeves, 7 Tangential locking sleeve, 8 tangential locking bolts, 9 right limit guide pin, 10 left guide drive sleeve, 11 left and right threaded drive shaft, 12 clamping mechanism bracket, 13 left limit guide pin, 14 right guide drive sleeve , An adjustable floating clamping device composed of 15 driving handwheels that can automatically align itself (can follow the product to determine its position).

Description

An adjustable self-aligning pliers floating clamping device

technical field

The invention relates to an adjustable self-aligning pliers floating clamping device in the cutting and processing tooling of large-scale assembly riveted parts of an aircraft main reduction platform, thereby ensuring the floating clamping function of large-scale riveted structural parts on machine tool fixtures. In particular, it relates to the technical field of cutting processing of plane main reducer platform and main reducer docking plane and connection hole.

Background technique

Generally, large-scale processing parts, especially riveted structural parts, have a large number of parts, large volume, and complex structure. The riveting position accuracy of parts is lower than that of machined structural parts. The clamping is difficult to achieve well, and the position fluctuation caused by the position accuracy is large, which makes it difficult to determine the support surface of the clamping position. Therefore, an adjustable automatic aligning pliers floating clamping device is invented.

Contents of the invention

The technical problem to be solved by this invention is:

The large-scale assembled riveted structural parts are processed on the machine tool, which overcomes the problems of low precision, long cycle time, and high labor intensity caused by manual processing and manual adjustment of workers in the past. In the case of improving machining accuracy and stability and improving production efficiency, it solves the problem of unreliable clamping due to part error clamping position drift in the fixture used for cutting large riveted structural parts.

Technical scheme of the present invention is:

An adjustable self-aligning pliers-type floating clamping device is characterized in that it includes a chuck 1, a right caliper 2, a nut 3, an adjusting bolt 4, a left caliper 5, a tangential locking sleeve 6, a tangential locking Set 7, tangential locking bolt 8, left limit guide pin 9, left guide drive sleeve 10, left and right trapezoidal thread drive shaft 11, clamping mechanism bracket 12, right limit guide pin 13, right guide drive sleeve 14, Drive the hand wheel 15; wherein, the chuck 1 is fixedly connected to the left caliper 5 and the right caliper 2 through the nut 3 and the adjusting bolt 4, the right caliper 2 is fixedly connected to the right guide transmission sleeve 14, and the left caliper 5 is fixedly connected to the left guide On the transmission sleeve 10, the right guide transmission sleeve 14 cooperates with the left guide transmission sleeve 10, the left guide transmission sleeve 10 cooperates with the clamping mechanism support 12, and one end of the left and right trapezoidal thread transmission shaft 11 is connected with the driving handwheel 15;

By turning the hand wheel 15, the left and right trapezoidal thread transmission shafts 11 are driven to rotate, respectively driving the right guide transmission sleeve 14 and the parts chuck 1, right caliper 2, nut 3, adjustment bolt 4 and left guide transmission sleeve 10 fixed thereon. And the left caliper 5, the chuck 1, the nut 3, and the adjusting bolt 4 of the parts fixed on it move in the guide groove of the clamping mechanism support 12 to realize clamping and loosening of the parts;

The clamping mechanism support 12 is provided with a left limit guide pin 9 that can move in the small short groove on the left guide drive sleeve 10, and the right limit guide pin 13 is provided with the left guide drive sleeve 10 on the right guide drive sleeve 14. Move in the small slender groove, the small short groove on the left guide transmission sleeve 10, the small slender groove of the right guide transmission sleeve 14 respectively limit the stroke of the left guide transmission sleeve 10 and the right guide transmission sleeve 14, when the driving hand wheel 15 rotates , one side with a short groove: guide drive sleeve 10 and the parts fixed on it. The transmission sleeve 14 and the parts fixed on it, the chuck 1, the right caliper 2, the nut 3, and the adjusting bolt 4, are close to the parts, so that the parts are clamped, and the left and right trapezoidal threads can be self-locked, and the left and right tightening mechanisms are fixed on the parts 16 Above, it plays the role of floating clamping.

The beneficial effects of the present invention are:

Reliable fast clamping can be achieved through adjustable self-aligning pliers-type floating clamping device, quick finding of clamping position, quick movement of clamping element parts, and adjustable strokes of the left and right calipers. Overcome the problems of low precision and long cycle caused by manual adjustment of workers, improve processing precision and stability, and improve production efficiency.

Description of drawings

Fig. 1 is a structural sectional view of the present invention, wherein, 1 is a chuck, 2 is a right caliper, 3 is a nut, 4 is an adjusting bolt, 5 is a left caliper, 6 is a tangential locking sleeve, and 7 is a tangential locking sleeve , 8 is the tangential locking bolt, 9 is the left limit guide pin, 10 is the left guide transmission sleeve, 11 is the left and right trapezoidal thread drive shaft, 12 is the clamping mechanism bracket, 13 is the right limit guide pin, 14 is Right guide drive sleeve, 15 is the driving handwheel.

Fig. 2 is the state before clamping of the present invention.

Fig. 3 is the clamped state of the present invention.

Fig. 4 is a schematic diagram of the guide grooves of the left and right guide sleeves of the present invention.

Detailed ways

One end of the left and right trapezoidal thread transmission shaft 11 is connected with the driving handwheel 15, and the left and right trapezoidal thread transmission shaft 11 is driven to rotate by turning the handwheel 15, respectively driving the right guide transmission sleeve 14 and the parts chuck 1, right The caliper 2, the nut 3, the adjusting bolt 4, the left guide transmission sleeve 10 and the parts fixed on it, the left caliper 5, the chuck 1, the nut 3, and the adjusting bolt 4 move in the guide groove of the clamping mechanism support 12 to Implements clamping and loosening of parts.

The clamping mechanism support 12 is provided with a left limit guide pin 9 that can move in the small short groove on the left guide drive sleeve 10, and the right limit guide pin 13 is provided with the left guide drive sleeve 10 on the right guide drive sleeve 14. Move in the small slender groove, the small short groove on the left guide transmission sleeve 10, the small slender groove of the right guide transmission sleeve 14 respectively limit the stroke of the left guide transmission sleeve 10 and the right guide transmission sleeve 14, when the driving hand wheel 15 rotates , the side with the short groove: the guide transmission sleeve 10 and the parts fixed on it, the left caliper 5, the chuck 1, the nut 3, and the adjusting bolt 4 first approach the parts to realize automatic alignment of the product, see Figure 2, with fine The other side of the long slot: the right guide transmission sleeve 14 and the parts chuck 1, right caliper 2, nut 3, and adjustment bolt 4 that are fixed on it continue to advance with the rotation of the 15 driving handwheel until they reach the parts that are close to each other. To clamp the part, see Figure 3. The length of the guide groove determines the size of the stroke. The length of the short groove is slightly larger than the position error of the part to compensate for the position drift of the part. The length of the long groove is the clamping stroke of the part, which is determined by the structure of the part. Decide. See Figure 4.

The left and right trapezoidal threads can be self-locked, and the left and right tightening mechanisms are fixed on the part 16, which plays the role of floating clamping. See Figure 4.

Tighten the tangential locking bolt 8 so that the tangential locking sleeve 6 and the tangential locking sleeve 7 hold the left guide drive sleeve 10 so that the entire clamping mechanism is fixed on the clamping mechanism support 12 .

Claims (1)

1. an adjustable automatic capturing jaw type floating clamping device, it is characterized in that, comprise chuck (1), right clamp (2), nut (3), adjustment bolt (4), left clamp (5), tangential lock sleeve (6), tangential lock sleeve (7), tangential clamping screw (8), left limit guide finger (9), left guiding drive sleeve (10), left and right acme thread power transmission shaft (11), clamp system support (12), right limit guide finger (13), right guiding drive sleeve (14), drive handwheel (15); Wherein, chuck (1) is fixedly connected on left clamp (5) and right clamp (2) by nut (3) and adjustment bolt (4), right clamp (2) are fixedly connected on right guiding drive sleeve (14), left clamp (5) are fixedly connected on left guiding drive sleeve (10), right guiding drive sleeve (14) coordinates with left guiding drive sleeve (10), left guiding drive sleeve (10) coordinates with clamp system bearing (12), and acme thread power transmission shaft (11) one end, left and right is connected with driving handwheel (15);

Left and right acme thread power transmission shaft (11) is driven to rotate by rotating handwheel (15), drive right guiding drive sleeve (14) and part chuck (1) fixed thereon, right clamp (2), nut (3), adjustment bolt (4) and left guiding drive sleeve (10) and the left clamp of part fixed thereon (5), chuck (1), nut (3) respectively, adjust bolt (4) movement in the gathering sill of clamp system bearing (12), realize clamping and loosen part;

Clamp system bearing (12) is provided with left limit guide finger (9) to move in the little short groove on left guiding drive sleeve (10), right limit guide finger (13) arranges on left guiding drive sleeve (10) mobile in the little elongated slot of right guiding drive sleeve (14), little short groove on left guiding drive sleeve (10), the little elongated slot of right guiding drive sleeve (14) limits left guiding drive sleeve (10) respectively, right guiding drive sleeve (14) stroke, when driving handwheel (15) to rotate, side with short groove: guiding drive sleeve (10) and the left clamp of part fixed thereon (5), chuck (1), nut (3), adjustment bolt (4) is first close to part, opposite side with elongated slot: right guiding drive sleeve (14) and part chuck (1) fixed thereon, right clamp (2), nut (3), close to part after adjustment bolt (4), part is clamped, left and right acme thread can self-locking, left and right clamping mechanism is fixed on part (16), serve the effect of floating clamping mechanism.