CN214292007U

CN214292007U - Universal fixture for milling shapes of elbow parts

Info

Publication number: CN214292007U
Application number: CN202120234908.4U
Authority: CN
Inventors: 张亮
Original assignee: Jinzhou Huaxing Decoration Machinery Co ltd
Current assignee: Jinzhou Huaxing Decoration Machinery Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-28
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses a general fixture for milling the shape of an elbow part, which comprises a fixture seat, positioning columns and tension fixtures, wherein the fixture seat is of a U-shaped structure, the fixture seat is provided with a base, the two sides of the base are symmetrically provided with positioning frames, and the tension fixtures vertically penetrate through the base; the positioning column horizontally penetrates through the positioning frame, and the positioning column and the tensioning clamp are used for fixing two ends of the elbow part respectively; the tensioning clamp comprises a clamping spring, a mandrel, a gasket and a nut, wherein the clamping spring is sequentially connected with a clamping area, a limiting convex ring, a tensioning area and a connecting column from top to bottom, the mandrel penetrates through the clamping spring, the mandrel is provided with a tensioning head, a main body and a threaded head which are sequentially connected from top to bottom, and the gasket, the nut and the threaded head are matched. Has the advantages that: the fixture can improve the positioning reference precision, so that the precision and the quality of the processed parts are improved; and one side is processed, and the other side can be processed by turning over without dismounting parts.

Description

Universal fixture for milling shapes of elbow parts

Technical Field

The utility model relates to a machine-building technical field specifically indicates a universal fixturing of elbow class part milling appearance.

Background

The fixture is an important tool in mechanical production and manufacturing, and the designed universal fixture for milling the shape of the elbow part belongs to one fixture, and plays roles in clamping and accurate positioning in the process of machining the shape of the elbow part in a machining center. The existing elbow fixture mainly has the following defects: 1. the tool fixture is an important tool in mechanical manufacturing and production, the appearance of elbow parts is machined, the traditional universal fixture machine can be used for clamping, and the positioning reference and machining precision are not high. 2. The elbow type parts are clamped by the jaws, the clamping force of workers in the clamping process is different, the clamping of the parts is prone to being out of place, the elbow type parts are generally clamped by the jaws to be subjected to appearance machining, the machining needs to be carried out twice, the positioning reference precision of the clamping of the jaws is low, two corresponding jaws need to be machined, and the efficiency is low. 3. After the machining is finished, if workers clean the jaw incompletely, machined cuttings are easily extruded into the jaw, and therefore the defects of indentation and the like are generated on the appearance of the part. Therefore, a universal fixture for milling the shape of the elbow parts is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a simple structure, the practicality is strong, a bend class part that excellent in use effect mills universal fixturing of appearance.

In order to solve the technical problem, the utility model provides a technical scheme does: a universal fixture for milling the shape of an elbow part comprises a fixture seat, positioning columns and a tensioning fixture, wherein the fixture seat is of a U-shaped structure, the fixture seat is provided with a base, the two sides of the base are symmetrically provided with positioning frames, and the tensioning fixture vertically penetrates through the base; the positioning column horizontally penetrates through the positioning frame, and the positioning column and the tensioning clamp are used for fixing two ends of the elbow part respectively; the tensioning clamp comprises a clamping spring, a mandrel, a gasket and a nut, wherein the clamping spring is sequentially connected with a clamping area, a limiting convex ring, a tensioning area and a connecting column from top to bottom, the mandrel penetrates through the clamping spring, the mandrel is provided with a tensioning head, a main body and a threaded head which are sequentially connected from top to bottom, and the gasket, the nut and the threaded head are matched.

Furthermore, the side wall of the clamp spring is provided with a plurality of deformation openings, and the deformation openings penetrate through the clamping area, the limiting convex ring and the tensioning area.

Furthermore, the base is internally provided with a concave hole for fixing the connecting column.

Further, run through the lateral wall of base one side is equipped with fixing bolt, fixing bolt cooperatees with the position of shrinkage pool, fixing bolt and base threaded connection.

Furthermore, the positioning frames on the two sides are provided with positioning openings, the positioning openings are matched with the positioning columns to fix the elbow parts, and the positioning columns can move up and down or left and right relative to the positioning openings.

Furthermore, the reference column includes the locating lever, the locating lever diameter cooperatees with location open-ended width, the locating lever right side is connected and is equipped with the bayonet socket, the diameter of bayonet socket cooperatees with the diameter of elbow part.

Furthermore, the vertical section of the tensioning head is in an inverted trapezoid shape, the mandrel is inserted from the upper end of the clamp spring, the nut drives the mandrel to move downwards relative to the clamp spring, and the tensioning head enables the clamp spring to deform and tension the fixed elbow part.

Compared with the prior art, the utility model the advantage lie in: the appearance milling clamp for elbow parts can greatly improve the positioning reference precision, so that the precision and the quality of the processed parts are improved; the other side can be machined after one side is machined and turned over, parts do not need to be dismounted, two specific jaw appearance clamping parts do not need to be milled, and cost can be effectively reduced; the appearance effect of the processed part is also obviously improved; the clamping process is simple, the labor productivity is improved, and compared with the traditional jaw clamping, the clamping force of workers can not influence the machining precision.

Drawings

Fig. 1 is a schematic structural view of the universal fixture for milling the shape of the elbow component of the present invention.

Fig. 2 is a schematic view of a vertical cross-section structure of the universal fixture for milling the shape of the elbow component of the present invention.

Fig. 3 is an illustration of the explosion structure of the universal fixture for milling the shape of the elbow component of the present invention.

Fig. 4 is a schematic view of a spring of the universal fixture for milling the shape of the elbow component according to the present invention.

Fig. 5 is a side view schematic diagram of the universal fixture for milling the shape of the elbow component of the present invention.

As shown in the figure: 1. the clamping device comprises a base, 2, a positioning column, 3, a positioning frame, 4, a clamping spring, 5, a mandrel, 6, a gasket, 7, a nut, 8, a clamping area, 9, a limiting convex ring, 10, a tensioning area, 11, a connecting column, 12, a tensioning head, 13, a main body, 14, a threaded head, 15, a deformation opening, 16, a concave hole, 17, a fixing bolt, 18, a positioning opening, 19, a positioning rod, 20, a bayonet, 21 and an elbow part.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

A universal fixture for milling the shape of an elbow part comprises a fixture seat, positioning columns 2 and tensioning fixtures, wherein the fixture seat is of a U-shaped structure, the fixture seat is provided with a base 1, the two sides of the base 1 are symmetrically provided with positioning frames 3, and the tensioning fixtures vertically penetrate through the base 1; the positioning column 2 horizontally penetrates through the positioning frame 3, and the positioning column 2 and the tensioning clamp are respectively used for fixing two ends of the elbow part 21; the tensioning clamp comprises a clamping spring 4, a mandrel 5, a gasket 6 and a nut 7, wherein the clamping spring 4 is sequentially connected with a clamping area 8, a limiting convex ring 9, a tensioning area 10 and a connecting column 11 from top to bottom, the mandrel 5 penetrates through the clamping spring 4, the mandrel 5 is sequentially connected with a tensioning head 12, a main body 13 and a threaded head 14 from top to bottom, and the gasket 6 and the nut 7 are matched with the threaded head 14.

The side wall of the clamp spring 4 is provided with a plurality of deformation openings 15, and the deformation openings 15 penetrate through the clamping area 8, the limiting convex ring 9 and the tensioning area 10. The base 1 is internally provided with a concave hole 16 for fixing the connecting column 11. Run through the lateral wall of base 1 one side is equipped with fixing bolt 17, fixing bolt 17 cooperatees with the position of shrinkage pool 16, fixing bolt 17 and base 1 threaded connection. The positioning frames 3 on two sides are provided with positioning openings 18, the positioning openings 18 are matched with the positioning columns 2 to fix the elbow parts 21, and the positioning columns 2 can move up and down or left and right relative to the positioning openings 18. The positioning column 2 comprises a positioning rod 19, the diameter of the positioning rod 19 is matched with the width of the positioning opening 18, a bayonet 20 is connected to the right side of the positioning rod 19, and the diameter of the bayonet is matched with that of an elbow part 21. The vertical section of the tensioning head is in an inverted trapezoid shape, the mandrel 5 is inserted from the upper end of the clamping spring 4, the nut 7 drives the mandrel 5 to move downwards relative to the clamping spring 4, and the tensioning head enables the clamping spring 4 to deform and tension the fixed elbow part 21.

Example (b): the utility model discloses elbow class part mills appearance anchor clamps overall structure is simple, and is with low costs, and the commonality is strong. The part is clamped by adopting the clamping spring 4 and the mandrel 5 in an internal expansion mode, the clamping force is large, the positioning is accurate, when the tensioning head 12 moves downwards relative to the clamping spring 4, the deformation opening 15 is expanded, so that the clamping area 8 clamps one end of the elbow part 21, and the defect that the clamping shape influences the shape if chips are mixed in can be avoided; a concave hole 16 for realizing positioning is arranged on the base 1 of the clamp seat, the clamping spring 4 is placed in the concave hole 16, the side surface of the clamping spring 4 is tightly propped against the clamping spring 4 by a fixing bolt 17 for fixing, and the clamping spring 4 is prevented from moving; the two ends of the elbow part 21 are respectively fixed by a tensioning clamp and a positioning column 2, the parts are processed on two sides on the same clamp seat, the positioning reference is consistent through the matching of the positioning column 2, the elbow part 21 and the clamp seat, the processing difficulty is reduced, the efficiency and the quality of the product are improved,

the present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a general fixture of elbow class part milling appearance which characterized in that: the U-shaped clamping fixture comprises a fixture seat, positioning columns (2) and a tensioning fixture, wherein the fixture seat is of a U-shaped structure, the fixture seat is provided with a base (1), the two sides of the base (1) are symmetrically provided with positioning frames (3), and the tensioning fixture vertically penetrates through the base (1); the positioning column (2) horizontally penetrates through the positioning frame (3), and the positioning column (2) and the tensioning clamp are respectively used for fixing two ends of the elbow part (21); the tensioning clamp comprises a clamping spring (4), a mandrel (5), a gasket (6) and a nut (7), wherein the clamping spring (4) is sequentially connected with a clamping area (8), a limiting convex ring (9), a tensioning area (10) and a connecting column (11) from top to bottom, the mandrel (5) penetrates through the clamping spring (4), the mandrel (5) is sequentially connected with a tensioning head (12), a main body (13) and a threaded head (14) from top to bottom, and the gasket (6) and the nut (7) are matched with the threaded head (14).

2. The universal fixture for milling the profile of the elbow component as claimed in claim 1, wherein: the side wall of the clamp spring (4) is provided with a plurality of deformation openings (15), and the deformation openings (15) penetrate through the clamping area (8), the limiting convex ring (9) and the tensioning area (10).

3. The universal fixture for milling the profile of the elbow component as claimed in claim 1, wherein: a concave hole (16) used for fixing the connecting column (11) is formed in the base (1).

4. The universal fixture for milling the profile of the elbow component as claimed in claim 1, wherein: run through the lateral wall of base (1) one side is equipped with fixing bolt (17), fixing bolt (17) cooperate with the position of shrinkage pool (16), fixing bolt (17) and base (1) threaded connection.

5. The universal fixture for milling the profile of the elbow component as claimed in claim 1, wherein: the positioning frames (3) on the two sides are provided with positioning openings (18), the positioning openings (18) are matched with the positioning columns (2) to fix the elbow parts (21), and the positioning columns (2) can move up and down or left and right relative to the positioning openings (18).

6. The universal fixture for milling the profile of the elbow component as claimed in claim 5, wherein: the positioning column (2) comprises a positioning rod (19), the diameter of the positioning rod (19) is matched with the width of the positioning opening (18), a bayonet (20) is connected to the right side of the positioning rod (19), and the diameter of the bayonet (20) is matched with the diameter of the elbow part (21).

7. The universal fixture for milling the profile of the elbow component as claimed in claim 1, wherein: the vertical section of the tensioning head (12) is in an inverted trapezoid shape, the mandrel (5) is inserted from the upper end of the clamp spring (4), the nut (7) drives the mandrel (5) to move downwards relative to the clamp spring (4), and the tensioning head (12) enables the clamp spring (4) to deform and tension the fixed elbow part (21).