Horizontal lathe clamp for special-shaped workpiece

Abstract

The utility model belongs to the field of machining, and particularly relates to a horizontal lathe fixture for special-shaped workpieces, which comprises a chassis, a transition disc, a connecting column and a chuck which are coaxially arranged, the chassis and the transition disc are respectively sleeved at two ends of the connecting column, and the chuck is fixed on the end face of the connecting column close to the transition disc; a center is arranged in the connecting column, a center hole is formed in the chuck, and the center protrudes out of the center hole of the chuck. A plurality of notches are formed in the transition disc and used for avoiding non-machining parts of the special-shaped workpieces. A locking hole is formed in the notch, a locking piece is detachably connected in the locking hole, and the locking piece is used for locking the non-machining part of the special-shaped workpiece in the notch; the technical problem that an existing horizontal lathe clamp cannot meet the clamping requirement of special-shaped workpieces is solved.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, and in particular relates to a horizontal lathe clamp for special-shaped workpieces. Background Art

[0002] A fixture refers to a process device used to quickly fasten the workpiece during the mechanical manufacturing process to keep the machine tool, tool and workpiece in the correct relative position; the fixture is an indispensable component for mechanical processing. Driven by the development of machine tool technology towards high speed, high efficiency, precision, composite, intelligent and environmentally friendly, the fixture technology is developing towards high precision, high efficiency, modularity, combination, general purpose and economy. When processing a workpiece on a machine tool, in order for the surface of the workpiece to meet the technical requirements of size, geometry and relative position accuracy with other surfaces specified in the drawing, the workpiece must be positioned and clamped before processing. Existing horizontal lathe fixtures can only clamp workpieces of conventional shapes, and cannot meet the positioning and clamping requirements of special-shaped workpieces, such as "Z"-shaped workpieces, which affects the processing of special-shaped workpieces. Utility Model Content

[0003] The utility model aims to provide a horizontal lathe clamp for special-shaped workpieces, so as to solve the technical problem that the existing horizontal lathe clamp cannot meet the clamping requirements of special-shaped workpieces.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A horizontal lathe clamp for special-shaped workpieces comprises a coaxially arranged chassis, a transition plate, a connecting column and a chuck, wherein the chassis and the transition plate are respectively sleeved on the two ends of the connecting column, and the chuck is fixed on the end surface of the connecting column close to the transition plate; a top is provided in the connecting column, a center hole is provided on the chuck, and the top protrudes out of the center hole of the chuck; a plurality of notches are provided on the transition plate, and the notches are used to avoid non-processing parts of the special-shaped workpiece; locking holes are provided on the notches, and a locking piece is detachably connected in the locking hole, and the locking piece is used to lock the non-processing part of the special-shaped workpiece in the notch.

[0006] Furthermore, the transition plate is provided with a plurality of counterweight holes, and the counterweight holes are used for installing counterweight blocks.

[0007] Furthermore, the notch includes a first notch, a second notch and a third notch of different shapes, and the positions of the counterweight holes correspond to the positions of the first notch, the second notch and the third notch respectively.

[0008] Furthermore, the chuck is a four-jaw chuck.

[0009] The technical principle of the utility model is:

[0010] When processing "Z"-shaped special-shaped workpieces, the chassis is clamped and fixed on the original chuck of the horizontal lathe, and then one end of the workpiece's axis to be processed is clamped on the chuck. The top point located in the center of the chuck presses the axis center of the workpiece's axis to be processed, and the tailstock of the horizontal lathe presses the other end of the workpiece's axis to be processed; at the same time, the non-processing axis of the workpiece passes through the gap of the transition plate, and then is locked in the gap by the locking piece. According to the eccentricity of the workpiece, a counterweight block of appropriate weight is selected and installed in the counterweight hole at the appropriate position. The workpiece's axis to be processed can be processed by the machine tool.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model can realize the clamping of special-shaped workpieces by setting a transition plate and a chuck, and setting a notch and a locking piece on the transition plate, so as to realize the processing of special-shaped workpieces by machine tools; by setting a first notch, a second notch and a third notch of different shapes on the transition plate, the utility model can adapt to the clamping and positioning requirements of different special-shaped workpieces, and has good versatility; by setting a counterweight hole on the transition plate to install a counterweight block, the eccentricity problem of the special-shaped workpiece can be solved, the roundness of the outer circle of the workpiece after processing is guaranteed, and the processing quality of the workpiece is guaranteed; the utility model and the original chuck of the horizontal car can be detachably installed, and the processing of special-shaped workpieces can be realized without changing the structure of the horizontal car, thereby reducing the processing cost of the special-shaped workpiece; and the utility model has a simple structure, can quickly realize the clamping of special-shaped workpieces, and is convenient and quick to operate. A double-center and four-jaw chuck is used for clamping and as a force transmission part, and the installation of the workpiece is reliable and the positioning accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic cross-sectional view of the clamping for processing a "Z"-shaped special-shaped workpiece according to the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 for Figure 1 A direction view;

[0016] Figure 4 The utility model is a schematic diagram of clamping for machining three-axis special-shaped workpieces. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The reference numerals in the drawings of the specification include:

[0019] Chassis 1, transition disk 2, first notch 21, second notch 22, third notch 23, locking hole 24, counterweight hole 25, connecting column 3, chuck 4, center point 5, horizontal lathe chuck 6, horizontal lathe tailstock 7, special-shaped workpiece 8. Embodiment

[0020] As Figure 1 shown, a horizontal lathe fixture for a special-shaped workpiece includes a coaxially arranged chassis 1, transition disk 2, connecting column 3 and chuck 4. The chassis 1 and the transition disk 2 are respectively welded to both ends of the connecting column 3. The chuck 4 is fixed to the end face of the connecting column 3 close to the transition disk 2 by screws. The chuck 4 in this embodiment is a four-jaw chuck 4. A center point 5 is provided inside the connecting column 3, and a center hole is provided on the chuck 4. The center point 5 protrudes outside the center hole of the chuck 4. A number of notches for avoiding non-machining parts of the special-shaped workpiece 8 are provided on the transition disk 2. Locking holes 24 are provided on the notches, and a locking member (not shown in the figure) is detachably connected in the locking holes 24. The locking member is used to lock the non-machining part of the special-shaped workpiece 8 in the notch. The locking holes 24 in this embodiment are threaded holes, and the locking member is a screw. By providing the transition disk 2 and the chuck 4, and providing notches and locking members on the transition disk 2, the clamping of the special-shaped workpiece 8 can be realized, so as to realize the machining of the special-shaped workpiece 8 by the machine tool.

[0021] As Figure 2 shown, the notch includes a first notch 21, a second notch 22 and a third notch 23. The shape of the first notch 21 is arc-shaped, the shape of the second notch 22 is an irregular figure as Figure 2 shown, and the shape of the third notch 23 is two "匚"-shaped symmetrically arranged on the transition disk 2. By providing the first notch 21, the second notch 22 and the third notch 23 with different shapes on the transition disk 2, the present utility model can adapt to the clamping and positioning requirements of different special-shaped workpieces 8, and has good versatility.

[0022] A number of counterweight holes 25 for installing counterweight blocks are also provided on the transition disk 2. The positions of the counterweight holes 25 correspond to the positions of the first notch 21, the second notch 22 and the third notch 23 respectively. By providing counterweight holes 25 on the transition disk 2 to install counterweight blocks, the eccentric problem of the special-shaped workpiece 8 can be solved, the roundness of the outer circle of the machined shaft of the special-shaped workpiece 8 can be ensured, and the machining quality can be guaranteed.

[0023] When machining the special-shaped workpiece 8, as Figure 1 shown, the chassis 1 of the present utility model is clamped and fixed on the original horizontal lathe chuck 6, and then the special-shaped workpiece 8 to be machined is clamped on the chuck 4, so that the center point 5 located at the center of the chuck 4 presses against the axis of one end of the machined shaft of the special-shaped workpiece 8, and the center point 5 of the horizontal lathe tailstock 7 presses against the other end of the machined shaft of the special-shaped workpiece 8; as Figure 3As shown, when clamping the "Z"-shaped special-shaped workpiece 8, the non-processing axis at the lower end of the special-shaped workpiece 8 passes through the second notch 22 of the transition plate 2, as shown in FIG. Figure 4 As shown, when clamping the three-axis special-shaped workpiece 8, the two non-processing axes at the lower end of the special-shaped workpiece 8 are respectively passed through the two third notches 23 of the transition plate 2, and then locked by the corresponding locking members; then, a counterweight block of appropriate weight is selected according to the eccentricity of the special-shaped workpiece 8, and it is installed in the counterweight hole 25 at the appropriate position, and the axis to be processed of the special-shaped workpiece 8 can be processed by the machine tool.

[0024] In summary, the utility model can be detachably installed from the original chuck of the horizontal lathe, and can realize the processing of special-shaped workpieces 8 without changing the structure of the horizontal lathe, thereby reducing the processing cost of the special-shaped workpieces 8. In addition, the utility model has a simple structure, can quickly realize the clamping of special-shaped workpieces 8, and is convenient and quick to operate. It adopts double center 5 and four-jaw chuck 4 for clamping and serving as the force transmission part, and the installation of special-shaped workpieces 8 is reliable and the positioning accuracy is high.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A lathe fixture for special-shaped workpieces, characterized in that: It includes a coaxially arranged chassis, a transition plate, a connecting column and a chuck, wherein the chassis and the transition plate are respectively sleeved on the two ends of the connecting column, and the chuck is fixed on the end surface of the connecting column close to the transition plate; a top is provided in the connecting column, a center hole is provided on the chuck, and the top protrudes out of the center hole of the chuck; a plurality of notches are provided on the transition plate, and the notches are used to avoid the non-processing parts of the special-shaped workpiece; a locking hole is provided on the notch, and a locking piece is detachably connected in the locking hole, and the locking piece is used to lock the non-processing part of the special-shaped workpiece in the notch.

2. The lathe clamp for special-shaped workpieces according to claim 1, characterized in that: The transition plate is also provided with a plurality of counterweight holes, and the counterweight holes are used for installing counterweight blocks.

3. The lathe clamp for special-shaped workpieces according to claim 2, characterized in that: The notches include a first notch, a second notch and a third notch of different shapes, and the positions of the counterweight holes correspond to the positions of the first notch, the second notch and the third notch respectively.

4. A lathe clamp for special-shaped workpieces according to any one of claims 1 to 3, characterized in that: The chuck is a four-jaw chuck.

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