Floating clamp for vertical lathe

Abstract

The utility model discloses a floating fixture for a vertical lathe, which comprises a clamping unit, the clamping unit comprises a clamping seat fixed on a chuck of the vertical lathe, the clamping seat is connected with an L-shaped clamping jaw in a sliding manner, the L-shaped clamping jaw can only slide along the radial line direction of the chuck of the vertical lathe, the L-shaped clamping jaw is limited on the clamping seat through a T-shaped screw rod, and the clamping seat is provided with a clamping groove. An L-shaped transition sleeve is fixed to the upper end of the clamping jaw, the horizontal end of the transition sleeve faces a forging stock, an obliquely-arranged retainer plate is hinged to the horizontal end of the transition sleeve, and the side, away from the transition sleeve, of the retainer plate is tightly attached to the periphery of the forging stock. The number of the clamping units is three or more, and the clamping units are evenly distributed in the circumferential direction of the axis of the forging stock. The centering and clamping device can effectively solve the problem of centering and clamping in machining of spindle-shaped forging intermediate blanks, and can be adjusted according to the sizes of different spindle-shaped intermediate blanks.

Description

Technical Field

[0001] The utility model relates to a floating clamp used for a vertical lathe, belonging to the technical field of lathe clamps. Background Art

[0002] During the forging production process, it is often necessary to perform additional machining on the intermediate blank in order to obtain the necessary auxiliary positioning reference or the ideal blank profile. When machining the intermediate blank, due to its irregular shape, it often presents a spindle shape. The shape of a certain intermediate blank and the machining requirements are as follows: Figure 1 shown.

[0003] Since the forging intermediate blank is in the shape of a spindle, it cannot be clamped and processed by the straight-faced jaws of a conventional lathe. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a floating clamp for a vertical lathe to solve the technical problems existing in the above-mentioned prior art.

[0005] The technical solution adopted by the present invention is: a floating clamp for a vertical lathe, including a clamping unit, the clamping unit including a clamping seat fixed on the chuck of the vertical lathe, an L-shaped claw slidably connected to the clamping seat, the L-shaped claw can only slide along the radial direction of the vertical lathe chuck, the L-shaped claw is limited on the clamping seat by a T-shaped screw, the upper end of the claw is fixed with an L-shaped transition sleeve, the horizontal end of the transition sleeve faces the forging blank, the horizontal end of the transition sleeve is hinged with an inclined supporting plate, the side of the supporting plate away from the transition sleeve is in close contact with the outer periphery of the forging blank; the number of the clamping units is set to more than 3 and is evenly distributed circumferentially about the axis of the forging blank.

[0006] Preferably, a cylinder arranged in the horizontal direction is fixed on the connection between the clamping claw and the transition sleeve, and a semi-cylindrical groove is correspondingly provided on the transition sleeve. The cylinder is clamped in the groove, and the groove can rotate at an angle relative to the cylinder.

[0007] Preferably, the number of the grooves is set to be more than 2, and they are arranged in sequence up and down at the lower part of the transition sleeve.

[0008] Preferably, the upper end of the supporting plate exceeds the center of gravity of the forging blank by 100 to 200 mm.

[0009] Preferably, a hanging ring is fixed to the upper end of the supporting plate.

[0010] Preferably, the upper end of the transition sleeve is higher than half the height of the supporting plate.

[0011] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model can effectively solve the problem of alignment and clamping of the spindle-shaped forging intermediate blank during machining, and can be adjusted according to the sizes of different spindle-shaped intermediate blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the shape of the intermediate blank.

[0013] Figure 2 It is the overall structure diagram of the utility model.

[0014] The reference numerals in the drawings of the specification include: vertical lathe chuck 1, T-shaped screw 2, clamping seat 3, clamping claw 4, transition sleeve 5, supporting plate 6, lifting ring 7, forging blank 8. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Example 1:

[0017] A vertical lathe uses a floating fixture, such as Figure 2 As shown, it includes a clamping unit, which includes a base 3 fixed on the vertical lathe chuck 1, and an L-shaped claw 4 is slidably connected to the base 3. The L-shaped claw 4 can only slide along the radial direction of the vertical lathe chuck 1, and the L-shaped claw 4 is limited on the base 3 by a T-shaped screw 2. The upper end of the claw 4 is fixed with an L-shaped transition sleeve 5, and the horizontal end of the transition sleeve 5 faces the forging blank 8. The horizontal end of the transition sleeve 5 is connected with an inclined supporting plate 6, and a cylinder arranged in the horizontal direction is fixed at the connection between the claw 4 and the transition sleeve 5. A semi-cylindrical groove is correspondingly provided on the transition sleeve 5, and the cylinder is stuck in the groove. The groove can rotate relative to the cylinder at an angle, so that the transition sleeve 5 and the supporting plate 6 are hinged, and the side of the supporting plate 6 away from the transition sleeve 5 is in close contact with the outer periphery of the forging blank 8; in this embodiment, the number of clamping units is set to 4 and is evenly distributed circumferentially about the axis of the forging blank 8.

[0018] In this embodiment, the number of the grooves is set to 3, and they are arranged in sequence up and down at the lower part of the transition sleeve 5.

[0019] In this embodiment, the upper end of the supporting plate 6 exceeds the center of gravity of the forging blank 8 by 150 mm.

[0020] In this embodiment, a hanging ring 7 is fixed to the upper end of the supporting plate 6 .

[0021] In this embodiment, the upper end of the transition sleeve 5 is 50 mm higher than half the height of the supporting plate 6 .

[0022] To use the clamping unit, first place the forging blank 8 on the vertical lathe chuck 1 and roughly align it. Then adjust the four clamping jaws 4 of the vertical lathe to maintain a certain distance from the forging blank 8. Adjust the clamping jaws 4 and the transition sleeve 5 to the appropriate position. Pass a thin steel wire rope through the lifting ring 7 on the support plate 6, lift the support plate 6 and gradually bring it closer to the forging blank 8. Then swing it within a certain angle range. Manually form a hinge assembly connection between the cylindrical and semi-circular arc grooves between the transition sleeve 5 and the support plate 6. Then adjust the vertical lathe chuck 1 to move the support plate 6 closer to the forging blank 8 until it is firmly against the support plate 6. This forms a stable triangular mounting clamping mechanism for the forging blank 8 through the support plate 6 and the transition sleeve 5. Similarly, adjust the other clamping units to clamp the forging blank 8, facilitating its processing.

[0023] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A vertical lathe using a floating fixture, characterized by: The invention relates to a method for manufacturing a plurality of forgings, wherein the plurality of forgings are constructed so that the plurality of forgings can be constructed so that the plurality of forgings can be constructed one by one. The plurality of forgings are constructed so that the plurality of forgings can be constructed one by one. The plurality of forgings are constructed so that the plurality of forgings can be constructed one by one.

2. A floating fixture for a vertical lathe according to claim 1, characterized in that: A cylinder arranged in the horizontal direction is fixed on the connection between the clamping claw and the transition sleeve, and a semi-cylindrical groove is correspondingly provided on the transition sleeve. The cylinder is clamped in the groove, and the groove can rotate at an angle relative to the cylinder.

3. The floating fixture for vertical lathe according to claim 2, characterized in that: The number of the grooves is set to be more than 2, and they are arranged in sequence up and down at the lower part of the transition sleeve.

4. The floating fixture for vertical lathe according to claim 1, characterized in that: The upper end of the supporting plate exceeds the center of gravity of the forging blank by 100 to 200 mm.

5. The floating fixture for vertical lathe according to claim 1, characterized in that: A hanging ring is fixed to the upper end of the supporting plate.

6. The floating fixture for vertical lathe according to claim 1, characterized in that: The upper end of the transition sleeve is higher than half the height of the supporting plate.

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