Fixture for precision machining

Abstract

The utility model relates to a clamp for precision machining. Comprising a base which is provided with an air cylinder and a supporting column. A telescopic mounting column is arranged on the air cylinder, a movable clamping jaw is arranged on the telescopic mounting column, and a fixing table is further arranged on the air cylinder. A movable supporting piece is arranged on the fixing table and connected with a movable clamping jaw, a positioning table is arranged on the base, and a product machining table is arranged on the positioning table. The positioning table is detachably mounted on the supporting column and is provided with a positioning hole and a contact pin; the product machining table is installed on the positioning table through a contact pin and can be detached and replaced, and the product machining table is designed based on the structural characteristics of an inner cavity of a product. According to the fixing mechanism of the clamp, the air cylinder is adopted to replace a traditional screw, rapid clamping and loosening are achieved, and the part replacing time is shortened. The clamp is designed based on the structural characteristics of the inner cavity of the workpiece, the workpiece is accurately positioned, the possibility of dimensional deviation in the machining process is reduced, the dimensional stability of the clamp in the long-time machining process is improved, and the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control processing technical field, concretely is a numerical control clamp for special part processing. BACKGROUND

[0002] In the precision machining industry, in order to ensure the machining accuracy and consistency of workpiece, usually need to use special fixture. However, the traditional fixture usually relies on screw fixing, not only time-consuming, but also may cause size deviation due to multiple clamping, thereby affecting product quality. The tooling fixture as the important auxiliary tool for ensuring the machining accuracy of workpiece, its design wants to keep the dimensional stability, can also realize quick clamping. CONTENT OF UTILITY MODEL

[0003] The technical problem to be solved by the technical scheme is to provide a clamp using a cylinder instead of a traditional screw as a fixing mechanism, realizing quick clamping and loosening of workpiece, reducing the part changing time. And the clamp is designed based on the structural features of the product inner cavity, can accurately position the workpiece, reduces the possibility of size deviation in the machining process, improves the dimensional stability of the clamp in the long-time machining process, effectively improves the production efficiency, is suitable for batch and repetitive production environment. The positioning table, product machining table and movable clamping jaw of the precision machining clamp can be replaced and disassembled, and can adapt to the precision machining of different workpieces.

[0004] To achieve the above purpose, the utility model creates the technical scheme that a precision machining clamp, including base, pillar, cylinder and positioning table, the base is equipped with cylinder and pillar;The cylinder has telescopic mounting column, the movable clamping jaw is on the telescopic mounting column, the cylinder still has fixed table;The fixed table has movable support piece, the movable support piece is connected movable clamping jaw, the base has positioning table, and the positioning table has product machining table.

[0005] Further, the base has a sliding table, and the sliding table has a plurality of sliding grooves.

[0006] Further, the positioning table is detachably mounted on the pillar, and the positioning table has a positioning hole and a pin.

[0007] Further, the positioning hole is aligned with the pillar, and the product machining table is detachably mounted on the positioning table through the pin.

[0008] Further, the movable clamping jaw is fixed at the top end of the telescopic mounting column of the cylinder through a horizontal shaft, and the movable support piece and the telescopic mounting column adjust the opening and closing of the movable clamping jaw.

[0009] Further, the height of the fixed table is flush with the height of the positioning table, and is lower than the telescopic mounting column.

[0010] The beneficial effects of this improved technical solution are as follows:

[0011] 1. The rapid clamping of the cylinder significantly shortens the clamping time and improves production efficiency.

[0012] 2. The fixture structure is designed according to the internal cavity characteristics of the workpiece, accurately positioning the workpiece, reducing the possibility of dimensional deviations during processing, and improving the dimensional stability of the fixture during long-term processing.

[0013] 3. Compared to traditional screw fixing, cylinder clamping is more labor-saving and suitable for batch and repetitive production environments. [Attached Image Description]

[0014] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0015] Fig. 2 This is a structural diagram of the machining positioning table.

[0016] Fig. 3 This is a schematic diagram of the base structure of this utility model.

Detailed Implementation Methods

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0018] refer to Figs. 1-3 A precision machining fixture includes a base 1, a cylinder 2, a support column 3, and a positioning table 4. The base 1 is equipped with the cylinder 2, the support column 3, and the positioning table 4. A sliding table 11 is located beneath the base 1, and the sliding table 11 has several sliding grooves 12. The base 1 is fixed to the sliding table 11 via the sliding grooves 12. The sliding table 11 and the sliding grooves 12 provide expandability, allowing for the replacement of different mechanical tools within limited equipment and space, thus reducing equipment costs.

[0019] Furthermore, the cylinder 2 has a telescopic mounting column 21, a movable jaw 24, and a fixed platform 22; the fixed platform 22 has a movable support plate 23, which is connected to the movable jaw 24. The fixed platform 22 is level with the positioning platform 4 and lower than the telescopic mounting column 21, providing working space for the workpiece and the movable jaw 24.

[0020] Furthermore, the positioning platform 4 is detachable from the support column 3, facilitating component replacement and assembly; the positioning platform 4 has a positioning hole 41, which is aligned with the support column 3 to fix the position of the positioning platform 4.

[0021] Further, the positioning table 4 has a pin 42, the positioning table 4 has a product processing table 43, the product processing table 43 is installed on the positioning table 4 through the pin 42, and the installation position of the product positioning table 43 is fixed. The product processing table 43 is designed based on the structural characteristics of the product inner cavity, and different designed product processing tables 43 can be disassembled and replaced to adapt to the size of different workpieces and accurately position the workpieces for processing.

[0022] Further, the end of the movable claw 24 is fixed to the top end of the telescopic mounting column 21 of the air cylinder 2 through the horizontal shaft 25, the movable supporting piece 23 and the telescopic mounting column 21 adjust the opening and closing of the movable claw 24. The movable supporting piece 23 fixes the basic position of the movable claw 24 while connecting the fixed table 22 and the movable claw 24, and cooperates with the telescopic movement of the telescopic mounting column 21 to make the movable claw 24 follow the telescopic mounting column 21 to expand and close, so that the opening and closing degree of the movable claw 24 can be adjusted to adapt to workpieces of different sizes; different movable claws 24 can also be disassembled and replaced to adapt to the clamping of workpieces of different designs.

[0023] The machining clamp is designed according to the characteristics of the workpiece inner cavity, so as to accurately position the workpiece and reduce the possibility of size deviation in the machining process. The fixing mechanism of the clamp adopts a cylinder instead of a traditional screw, the workpiece is placed in the clamp, the cylinder quickly clamps the workpiece, realizes rapid clamping and loosening, shortens the clamping time, and after the machining is completed, the operator can quickly replace the next workpiece through the quick release function of the cylinder, ensures the continuity of the machining, and improves the efficiency of the machining production.

[0024] Compared with the traditional screw fixing, the cylinder clamping is more labor-saving and more convenient to operate, and at the same time, the size deviation caused by screw loosening in the long-time machining process of the clamp is avoided, and the size stability is improved. Through the clamp, high-efficiency production process can be realized under the premise of maintaining high machining precision, and it is suitable for batch and repetitive production environment.

[0025] It should be noted that in the description of the present application, unless otherwise expressly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, and the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A jig for precision machining, characterized by: The utility model discloses a base is equipped with cylinder and support column on it, the cylinder has telescopic mounting column on it, and the telescopic mounting column has movable dog on it, and the cylinder still has fixed platform on it, the fixed platform has movable support piece on it, and the movable support piece is connected movable dog, and the base has positioning table on it, and the positioning table has product processing table on it, the positioning table is installed in support column and can be dismantled, and the positioning table has positioning hole and insertion pin on it, the positioning hole is aligned with support column, and the product processing table is installed in positioning table through insertion pin and can be dismantled and replaced, and the product processing table is designed based on the structural characteristics of product inner cavity.

2. The jig for precision machining according to claim 1, characterized by: The base is equipped with sliding table under it, and the sliding table has a plurality of sliding grooves on it.

3. The fixture of claim 1 wherein: The movable dog tail end is fixed in the top of cylinder telescopic mounting column through horizontal shaft, and movable support piece and telescopic mounting column adjust the folding and unfolding of movable dog.

4. The fixture of claim 1 wherein: The height of fixed platform is flush with the height of positioning table, and is lower than telescopic mounting column.

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