Machining clamp for special-shaped disc

Abstract

The utility model discloses a special-shaped disc machining clamp which comprises clamping jaws arranged on a hydraulic chuck and used for clamping parts and further comprises a positioning disc arranged on the hydraulic chuck and used for positioning the parts, one end of the outer side of one clamping jaw is provided with a balancing weight, the balancing weight is fixed to one end of the outer side of the clamping jaw through a screw, and the other end of the outer side of the clamping jaw is provided with a clamping groove. When the asymmetrical special-shaped piece is installed, the heavy part of the special-shaped piece is arranged on the other side of the balancing weight, so that the purpose of balancing weight is achieved. In the clamping process, the clamping reliability is guaranteed by additionally arranging the positioning disc and the balancing weight, the part cannot move randomly after being clamped, and clamping of the special-shaped part is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a machining fixture for a special-shaped disc. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to perform turning processing on a rotating workpiece. As an important component of a lathe, a three-jaw chuck mainly utilizes the radial movement of three movable jaws evenly distributed on the chuck body to clamp and position the workpiece.

[0003] However, when clamping regular disc parts, conventional three-jaw chucks can complete the clamping of parts. However, for some irregularly shaped parts, if conventional clamping methods are used, the conventional three-jaw chuck cannot fix them well because the parts are special-shaped and asymmetrical, and the clamping reliability is poor. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a processing fixture for a special-shaped disc, which can ensure reliable clamping of the special-shaped parts.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A processing fixture for a special-shaped disc comprises a clamping claw arranged on a hydraulic chuck for clamping a part, and also comprises a positioning plate arranged on the hydraulic chuck for positioning the part, wherein a counterweight block is arranged at one end of the outer side of one of the clamping claws.

[0007] Furthermore, one end of the inner side of the claw is provided with a groove which cooperates with the small round sleeve at the left end of the part.

[0008] Furthermore, a slide groove is provided on the left side of the positioning plate, and the claw is located in the slide groove.

[0009] Furthermore, the position of the threaded hole on the positioning plate is staggered with the position of the sliding groove.

[0010] Furthermore, a shifting block is provided on the outer cylindrical surface of the positioning plate and cooperates with the raised side surface of the upper end of the part.

[0011] Furthermore, a plane is provided on the outer cylindrical surface of the positioning plate, and the shift block is installed on the plane.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model includes a clamping claw for clamping parts arranged on a hydraulic chuck, and also includes a positioning plate for positioning parts arranged on the hydraulic chuck, wherein a counterweight block is arranged at one end of the outer side of one of the clamping claws, and the counterweight block is fixed to one end of the outer side of the clamping claw by screws. When installing asymmetric special-shaped parts, the heavier part of the special-shaped parts is arranged on the other side of the counterweight block to achieve the purpose of counterweight. When clamping, the reliability of clamping is ensured by adding the positioning plate and the counterweight block, and the parts will not move around after clamping, thereby achieving the clamping of special-shaped parts.

[0014] 2. The utility model has a shifting block on the outer cylindrical surface of the positioning plate, which matches the raised side of the upper end of the part. When clamping, it is close to the side of the part boss. When processing, the spindle rotates, and the part rotates driven by the claws and the shifting fork, so the part rotates reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a cross-sectional view of the utility model in a clamping state;

[0017] Figure 2 It is the right view of the utility model;

[0018] Figure 3 This is a cross-sectional view of the cooperation between the clamping claw and the parts of the utility model;

[0019] Figure 4 This is a cross-sectional view of the positioning plate and parts of the utility model;

[0020] Figure 5 This is the right side view of the positioning plate of the utility model;

[0021] Figure 6 This is a cross-sectional view of the positioning plate of the utility model;

[0022] Figure 7 This is a right side view of the clamping claw of the utility model;

[0023] Figure 8 This is a cross-sectional view of the clamping claw of the utility model;

[0024] Fig. 9 This is a cross-sectional view of the shift block of the utility model;

[0025] Fig.10 It is a top view of the shift block of the utility model.

[0026] In the figure: hydraulic chuck 1, claw 2, positioning plate 3, counterweight 4, groove 5, slide 6, shift block 7, plane 8. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] like Figure 1 and Figure 2 As shown, a processing fixture for a special-shaped disc includes a clamping claw 2 for clamping a part arranged on a hydraulic chuck 1, and the clamping claw 2 is provided with three pieces, and also includes a positioning plate 3 for positioning the part arranged on the hydraulic chuck 1, and the positioning plate 3 is connected to the pre-drilled screw hole of the hydraulic chuck 1 by screws, and is fastened, and the end of the positioning plate 3 is close to the large plane of the small outer circle end of the part to achieve axial positioning, and a counterweight block 4 is provided at the outer end of one of the clamping claws 2, and the counterweight block 4 is fixed to the outer end of the clamping claw by screws. When installing an asymmetric special-shaped part, the heavier part of the special-shaped part is set on the other side of the counterweight block to achieve the purpose of counterweighting. When clamping, the reliability of clamping is ensured by adding a positioning plate and a counterweight block, and the part will not move around after clamping, so the clamping of the special-shaped part is achieved.

[0029] like Figure 3 ,like Figure 7 and Figure 8 As shown, one end of the inner side of the clamping claw 2 is provided with a groove 5 which cooperates with the small round sleeve at the left end of the part.

[0030] like Figure 4 and Figure 6 As shown, a slide groove 6 is provided on the left side of the positioning plate 3, and the clamping claw 2 is located in the slide groove 6. Three slide grooves 6 are pre-milled on the positioning plate 3 according to the installation position of the clamping claw 2, which does not affect the sliding of the clamping claw 2 to achieve the clamping action.

[0031] like Figure 5 As shown, the position of the threaded hole on the positioning plate 3 is staggered with the position of the slide groove 6, so as to ensure that the positioning plate can be fixed on the hydraulic chuck and will not interfere with the movement of the claws.

[0032] like Figure 1 and Figure 4As shown, a shift block 7 is provided on the outer cylindrical surface of the positioning plate 3 to cooperate with the raised side of the upper end of the part. When clamping, it is close to the side of the part boss. When processing, the spindle rotates, and the part rotates driven by the claws and the shift fork, and the part rotates reliably.

[0033] like Figure 2 and Figure 5 As shown, the outer cylindrical surface of the positioning plate 3 is provided with a plane 8, which is milled out by a milling machine, and the shift block 7 is mounted on the plane 8 by screws, as shown in FIG. Fig. 9 and Fig.10 As shown, the bolt hole on the shift block 7 is arranged at an eccentric position of the shift block 7 .

[0034] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A processing fixture for a special-shaped disc, comprising a clamping claw (2) arranged on a hydraulic chuck (1) for clamping a part, characterized in that: It also comprises a positioning plate (3) arranged on the hydraulic chuck (1) for positioning parts, wherein a counterweight block (4) is arranged at one end of the outer side of one of the clamping claws (2).

2. A processing fixture for a special-shaped disc as claimed in claim 1, characterized in that: One end of the inner side of the clamping claw (2) is provided with a groove (5) which cooperates with the small round sleeve at the left end of the part.

3. A processing fixture for a special-shaped disc as claimed in claim 1, characterized in that: A slide groove (6) is provided on the left side of the positioning plate (3), and the clamping claw (2) is located in the slide groove (6).

4. A processing fixture for a special-shaped disc as claimed in claim 1, characterized in that: The position of the threaded hole on the positioning plate (3) is staggered with the position of the sliding groove (6).

5. A processing fixture for a special-shaped disc as claimed in claim 1, characterized in that: The outer cylindrical surface of the positioning plate (3) is provided with a shifting block (7) which cooperates with the raised side surface of the upper end of the part.

6. A processing fixture for a special-shaped disc as claimed in claim 5, characterized in that: A plane (8) is provided on the outer cylindrical surface of the positioning plate (3), and the shifting block (7) is installed on the plane (8).

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