Shaft forge piece machining and clamping tool

Abstract

The utility model discloses a shaft forge piece machining clamping tool, which belongs to the technical field of shaft forge piece machining, and comprises an original lathe part, a Haff clamp and a self-aligning sleeve, the original lathe part comprises a four-jaw chuck and a center frame shaft sleeve which are arranged on a lathe, four clamping jaws are arranged on the four-jaw chuck in a sliding mode, and the center frame shaft sleeve is arranged on the center frame shaft sleeve. The Haff clamp comprises two oppositely-arranged clamp bodies and screws used for connecting the two clamp bodies, the two clamp bodies are fixedly installed on the shaft through the screws, the upper clamping jaw and the lower clamping jaw abut against the two clamp bodies respectively, the left clamping jaw and the right clamping jaw abut against the two screws respectively, the two ends of the aligning sleeve are in threaded connection with bolts respectively, and the two ends of the aligning sleeve are in threaded connection with the bolts respectively. The aligning sleeve is fixedly installed on the shaft through a bolt, and the surface of the aligning sleeve makes contact with the center frame shaft sleeve. By arranging the Haff clamp, the rotating torque can be effectively transmitted to the shaft forge piece, and by arranging the aligning sleeve, the abrasion of the center frame shaft sleeve can be reduced, the machining precision is improved, and the alignment difficulty is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft forging processing, and particularly relates to a clamping tool for shaft forging processing. Background Art

[0002] The surface roughness of the forging blank of a large shaft is high and the roundness is poor. When it is clamped on a lathe, a steady rest is needed for assistance. The rough outer surface directly contacting the steady rest bushing will aggravate the wear of the steady rest bushing, affect the clamping accuracy, and thus affect the machining accuracy. Moreover, the poor roundness will increase the alignment difficulty. During finish turning, directly clamping the workpiece by the chuck will cause surface scratches, and insufficient clamping force will result in the ineffective transmission of the chuck torque to the workpiece.

[0003] In view of this, the present application designs a clamping tool for shaft forging processing, which can reduce the alignment difficulty and improve the production efficiency of shafts. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a clamping tool for shaft forging processing to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A clamping tool for shaft forging processing, including the original lathe components, a half-moon clamp, and an aligning sleeve. The original lathe components include a four-jaw chuck and a steady rest bushing installed on the lathe. Four jaws are slidably installed on the four-jaw chuck. The half-moon clamp includes two relatively arranged clamp bodies and a screw rod for connecting the two clamp bodies. The two clamp bodies are fixedly installed on the shaft through the screw rod. The upper and lower jaws respectively abut against the two clamp bodies, and the left and right jaws respectively abut against the two screw rods;

[0006] Both ends of the aligning sleeve are threadedly connected with bolts, and the aligning sleeve is fixedly installed on the shaft through the bolts. The surface of the aligning sleeve contacts the steady rest bushing.

[0007] As a preferred implementation manner, nuts are threadedly connected to both ends of the screw rod.

[0008] As a preferred implementation manner, gaskets are abutted between the nuts and the clamp bodies, and the gaskets are sleeved on the screw rod.

[0009] As a preferred implementation manner, the inner angle of the clamp body is 120°.

[0010] As a preferred implementation manner, there are eight bolts, and all eight bolts abut against the surface of the shaft.

[0011] As a preferred implementation manner, four annularly distributed screw holes are provided at both ends of the aligning sleeve, and the bolts are threadedly connected in the screw holes.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For the tooling for machining the shaft forging, by setting a split clamp, when clamping the shaft forging, the two fixture bodies are sleeved on the end of the shaft forging, and the two fixture bodies are fixed on the shaft using a screw, and then the split clamp is fixed on the four-jaw chuck, so that the upper and lower two jaws of the four-jaw chuck clamp the fixture body, thereby clamping the shaft forging, and the left and right two jaws abut against the screw, positioning and effectively transmitting the rotational torque to the shaft forging;

[0014] For the tooling for machining the shaft forging, by setting an aligning sleeve, the aligning sleeve is installed at the contact with the center rest bushing, and the smooth outer surface of the aligning sleeve is used to contact the center rest bushing, reducing the wear of the center rest bushing, improving the machining accuracy, and being in contact with the shaft through eight bolts, which facilitates reducing the alignment difficulty by adjusting the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic side view structure diagram of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the split clamp of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the aligning sleeve of the present utility model.

[0019] In the figure: 1, original lathe parts; 11, four-jaw chuck; 12, center rest bushing; 13, jaw; 2, split clamp; 21, fixture body; 22, screw; 23, nut; 24, gasket; 3, aligning sleeve; 31, bolt; 32, screw hole; 4, shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the present utility model in conjunction with embodiments.

[0021] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present utility model under the premise of the concept of the present utility model all belong to the scope required to be protected by the present utility model.

[0022] Please refer to Figures 1-4The utility model provides a shaft forging processing clamping tool, including an original lathe component 1, a half clamp 2 and a self-aligning sleeve 3. The original lathe component 1 includes a four-jaw chuck 11 and a center frame sleeve 12 installed on the lathe. Four claws 13 are slidably installed on the four-jaw chuck 11. The half clamp 2 includes two relatively arranged clamp bodies 21 and a screw 22 for connecting the two clamp bodies 21. The two clamp bodies 21 are fixedly installed on the shaft 4 through the screw 22. The inner angle of the clamp body 21 is 120°. The upper and lower claws 13 are respectively pressed against the two clamp bodies 21, and the left and right claws 13 are respectively pressed against the two The screw rod 22 has nuts 23 threadedly connected at both ends thereof, and a gasket 24 abuts between the nut 23 and the clamp body 21, and the gasket 24 is sleeved on the screw rod 22. By setting the half clamp 2, when clamping the shaft forging, the two clamp bodies 21 are sleeved on the ends of the shaft forging, and the two clamp bodies 21 are fixed to the shaft 4 using the screw 22, and then the half clamp 2 is fixed on the four-jaw chuck 11, so that the upper and lower jaws 13 of the four-jaw chuck 11 clamp the clamp body 21, thereby clamping the shaft forging, and the left and right jaws 13 support the screw rod 22, positioning and effectively transmitting the rotational torque to the shaft forging.

[0023] Reference Figure 1 and Figure 4 , both ends of the centering sleeve 3 are threadedly connected with bolts 31, and the centering sleeve 3 is fixedly installed on the shaft 4 by the bolts 31. Four annularly distributed screw holes 32 are opened at both ends of the centering sleeve 3, and the bolts 31 are threadedly connected in the screw holes 32. There are eight bolts 31, and the eight bolts 31 are all in contact with the surface of the shaft 4. The surface of the centering sleeve 3 is in contact with the center frame sleeve 12. By setting the centering sleeve 3, the centering sleeve 3 is installed at the contact with the center frame sleeve 12, and the smooth outer surface of the centering sleeve 3 is in contact with the center frame sleeve 12, so as to reduce the wear of the center frame sleeve 12 and improve the processing accuracy. Moreover, the centering sleeve 3 is in contact with the shaft 4 through eight bolts 31, so that it is convenient to reduce the difficulty of alignment by adjusting the bolts 31.

[0024] The working principle and use process of the utility model are as follows: first, by setting up the half clamp 2, when clamping the shaft forging, the two clamp bodies 21 are sleeved on the ends of the shaft forging, and the two clamp bodies 21 are fixed on the shaft 4 by using the screw 22, and then the half clamp 2 is fixed on the four-jaw chuck 11, so that the upper and lower two clamping jaws 13 of the four-jaw chuck 11 clamp the clamp body 21, so that the shaft forging is clamped, and the left and right two clamping jaws 13 support the screw 22, positioning and effectively transmitting the rotational torque to the shaft forging, and by setting the self-aligning sleeve 3, the self-aligning sleeve 3 is installed at the contact with the center frame shaft sleeve 12, and the smooth outer surface of the self-aligning sleeve 3 is used to contact with the center frame shaft sleeve 12, so as to reduce the wear of the center frame shaft sleeve 12 and improve the processing accuracy.

[0025] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A shaft forging processing and clamping tool, comprising an original lathe component (1), a half clamp (2) and a self-aligning sleeve (3), characterized in that: The original lathe component (1) comprises a four-jaw chuck (11) and a center frame sleeve (12) installed on the lathe, four jaws (13) are slidably installed on the four-jaw chuck (11), and the half clamp (2) comprises two clamp bodies (21) arranged opposite to each other and a screw rod (22) for connecting the two clamp bodies (21), the two clamp bodies (21) are fixedly installed on the shaft (4) through the screw rod (22), the upper and lower two clamp bodies (13) are respectively pressed against the two clamp bodies (21), and the left and right two clamp bodies (13) are respectively pressed against the two screw rods (22); Bolts (31) are threadedly connected at both ends of the centering sleeve (3), and the centering sleeve (3) is fixedly mounted on the shaft (4) by means of the bolts (31). The surface of the centering sleeve (3) is in contact with the center frame sleeve (12).

2. The axle forging processing and clamping tool according to claim 1, characterized in that: Both ends of the screw rod (22) are threadedly connected with nuts (23).

3. The axle forging processing and clamping tool according to claim 2, characterized in that: A gasket (24) is abutted between the nut (23) and the clamp body (21), and the gasket (24) is sleeved on the screw rod (22).

4. The axle forging processing and clamping tool according to claim 1, characterized in that: The inner angle of the clamp body (21) is 120°.

5. The axle forging processing and clamping tool according to claim 1, characterized in that: There are eight bolts (31), and all of the eight bolts (31) abut against the surface of the shaft (4).

6. The axle forging processing and clamping tool according to claim 1, characterized in that: Four annularly distributed screw holes (32) are provided at both ends of the center-aligning sleeve (3), and the bolts (31) are threadedly connected in the screw holes (32).

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