CN201530847U - Crankshaft flat clamping device - Google Patents

Abstract

The utility model relates to a crankshaft laying and clamping device, which comprises several groups of double V-shaped blocks, upper pressing plates, pressing screws and nuts, the double V-shaped blocks are fixed on the vibrating bottom plate with screws, and the double-connected V-shaped The block is provided with two V-shaped grooves side by side, and there is a screw hole in the middle of the two V-shaped grooves. The lower end of the compression screw is fixed in the screw hole of the double V-shaped block, and the other end is inserted into the light hole of the upper platen. Cooperate with the nut arranged on the top of the upper pressing plate, connect the upper pressing plate through the nut, and compress the crankshaft clamped between the double V-shaped block and the upper pressing plate. The utility model has a simple and reasonable structure, can clamp and fix two aging shafts at one time, increases the number of aging shafts, reduces the number of pressing bolts, is convenient to operate and use, reduces the labor intensity of the operator, and has high work efficiency. It is suitable for clamping and fixing shaft parts during vibration aging.

Description

Crankshaft flat clamping device

technical field

The utility model relates to a clamping device, in particular to a crankshaft laying clamping device. It is suitable for fixed use when shaft parts undergo vibration aging.

Background technique

We know that during the manufacturing process of shaft parts, due to uneven force or heat, uneven plastic deformation occurs inside, and residual stress exists after processing. Residual stress is an important cause of cracking or deformation of metal components, which greatly affects the stability of fatigue strength and dimensional accuracy of metal components. Elimination of residual stress is a very important task in the machining industry. Vibration aging (VSR) is to reduce or homogenize the residual stress in the component by applying vibration, so as to improve the service strength of the component, reduce the deformation and stabilize the dimensional accuracy. In the past, when performing vibration aging, the shaft parts were flatly laid on the vibrating bottom plate and compressed with multiple bolts. Therefore, limited by the size of the vibrating bottom plate, the number of time-limited vibrations at one time is small, and because many bolts need to be tightened, the labor intensity is also high.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a crankshaft laying and clamping device with simple structure, laying and clamping the aging shaft on a lay, easy operation and use, and high working efficiency.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a crankshaft laying and clamping device, which is characterized in that it includes several groups of double V-shaped blocks, upper platens, compression screws, nuts, and double V-shaped blocks. The blocks are respectively fixed on the vibrating bottom plate with screws. Two V-shaped grooves are arranged side by side in the double-connected V-shaped blocks. There is a screw hole in the middle of the two V-shaped grooves. In the hole, the other end is inserted in the light hole of the upper pressing plate, cooperates with the nut arranged on the upper pressing plate, connects the upper pressing plate through the nut, and compresses the crankshaft clamped between the double V-shaped block and the upper pressing plate.

Said upper pressing plate of the utility model is rectangular, covers the top of the double V-shaped block, and has a length greater than the distance between two V-shaped grooves of the double-connected V-shaped block.

When the utility model is working, two to five sets of double V-shaped blocks are respectively fixed on the vibrating bottom plate, and the two crankshafts are laid flat and clamped between the double V-shaped blocks and the upper platen respectively to complete the alignment of the aging shaft. fixed. Compared with the prior art, the utility model has a simple and reasonable structure, can clamp and fix two aging shafts at one time, increases the number of aging shafts, reduces the number of pressing bolts, is easy to operate and use, and reduces the labor intensity of the operator , high working efficiency, suitable for clamping shaft parts, especially crankshafts, during vibration aging.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a schematic diagram of the connection between the double-connected V-shaped block and the upper platen of the utility model.

The label among the figure is: 1. duplex V-shaped block, 2. upper pressing plate, 3. compression screw rod, 4. nut, 5. screw, 6. vibrating bottom plate, 7. crankshaft.

Detailed ways

It can be seen from Fig. 1 and Fig. 2 that a flat clamping device for a crankshaft includes several groups of double-connected V-shaped blocks 1, an upper pressing plate 2, a pressing screw 3, nuts 4, and the like. Several duplex V-shaped blocks 1 are respectively fixed on the vibrating bottom plate 6 with screws. Said duplex V-shaped block 1 is that left and right two V-shaped grooves are processed side by side on a part, and a screw hole is provided at the middle position of the two V-shaped grooves. Said compression screw rod 3 is a threaded stud at two ends, the lower end of compression screw rod 3 is tightened on the screw hole of double V-shaped block 1, and the other end is inserted in the light hole of upper pressing plate 2. Cooperate with the nut 4 arranged on the top of the upper pressing plate 2, connect the upper pressing plate 2 through the nut, and compress the crankshaft clamped between the double V-shaped block 1 and the upper pressing plate 2.

Said upper pressing plate 2 of the utility model is rectangular, covers on double V-shaped block 1 top, and length is greater than the distance between two V-shaped grooves of double-connected V-shaped block. That is to say that its length should exceed the centers of the two V-shaped grooves of the duplex V-shaped block 1 from the middle to both sides. Upper platen 2 compresses the crankshaft shaft diameter of the aging shaft downwards by the nut 4 screwed on the top of the compression screw rod 3 .

When the utility model was working, as shown in Figure 1, three groups of double V-shaped blocks 1 were fixed on the vibrating base plate 6 with screws 5. The two aging crankshafts 7 are laid flat and clamped between three sets of double V-shaped blocks 1 and the upper pressure plate 2, and then the three nuts 4 are tightened to compress the clamped between the double V-shaped blocks and the upper pressure plate. The crankshaft completes the fixation of the aged shaft. Two aging shafts can be clamped and fixed at one time, the number of shafts for one aging is increased, the number of pressing bolts is reduced, the operation and use are convenient, the labor intensity of the operator is reduced, and the work efficiency is high.

Claims (3)

1. A crankshaft laying clamping device is characterized in that: it includes several groups of double V-shaped blocks, upper platen, compression screw, nut, and the double-connected V-shaped blocks are fixed on the vibrating base plate with screws respectively. There are two V-shaped grooves arranged side by side in the joint V-shaped block, and there is a screw hole in the middle of the two V-shaped grooves. The lower end of the compression screw is fixed in the screw hole of the double-connected V-shaped block, and the other end is inserted into the light In the hole, cooperate with the nut arranged on the top of the upper pressing plate, connect the upper pressing plate through the nut, and compress the crankshaft clamped between the double V-shaped block and the upper pressing plate. 2. The crankshaft laying and clamping device according to claim 1, characterized in that: said upper platen is rectangular, covers the upper part of the double V-shaped block, and has a length greater than that between the two V-shaped grooves of the double-connected V-shaped block distance. 3. The crankshaft laying clamping device according to claim 1, characterized in that: said compression screw is a double-ended stud with threads at both ends.

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