CN202377796U - Numerical control turning fixture for inner outline of focusing guide ring - Google Patents

Abstract

The utility model relates to a numerical control turning processing fixture for the inner contour of a focusing guide ring, which is composed of a clamp body and a threaded clamping sleeve. The radial depth is smaller than the wall thickness of the workpiece. An external thread is formed on the outer wall of the same end of the clamp body and a threaded clamping sleeve is installed. The outer end surface of the threaded clamping sleeve is formed with a workpiece positioning step. The utility model has simple structure and reasonable design. The parts are placed in the ring groove of the workpiece made in the clamp body, and the end adopts the threaded clamping sleeve to realize the positioning and clamping of the parts. The parts are positioned by the end face and the outer cylinder, and the parts are completely clamped. Withstand axial force and have good axial rigidity. This method is easy to operate, reliable in positioning and clamping, and can realize simultaneous clamping of multiple pieces. One-time processing is completed, which greatly improves production efficiency, ensures the processing quality of products, and creates considerable value for enterprises. economic benefits.

Description

NC Turning Fixture for Inner Contour of Focusing Guide Ring

technical field

The utility model relates to the field of surveying and mapping instrument processing devices, in particular to a numerical control turning processing fixture for the inner contour of a focusing guide ring.

Background technique

High-precision surveying and mapping instrument is an indispensable precision instrument for geological exploration, which is directly related to the actual exploration accuracy, especially its key component focusing guide ring, which has extremely high manufacturing accuracy. The correct heat treatment process and manufacturing process are the basic guarantee for the high precision of the focusing guide ring. Since the focusing guide ring requires high surface quality, high dimensional and shape accuracy, and it is a thin-walled part, which is prone to internal stress and cutting deformation, it is difficult to process it with ordinary turning devices and fixtures. It is easy to deform during clamping and processing, and the product accuracy is difficult to guarantee.

The existing thin wall parts are clamped by slotted sleeves. This clamping method is simple in design, convenient in manufacture, flexible in use, large in clamping contact area, uniform in force on the parts, and can prevent the surface of the parts from being pinched. However, this fixture makes the part bear radial force during the clamping process, and the workpiece will produce a small amount of deformation. It is not suitable for the processing of high-precision parts, and the clamping force is not large enough, and it is prone to knife sticking. It is difficult to ensure the accuracy of clamping in mass production. Consistency, unable to meet the technical requirements of this product.

Utility model content

The purpose of this utility model is to provide a kind of clamping fixture that is reliable in clamping, easy to process, and guarantees the precision of the product.

The utility model solves its technical problem and adopts the following technical solutions to realize:

A fixture for numerically controlled turning of the inner contour of a focusing guide ring, characterized in that it is composed of a clamp body and a threaded clamping sleeve, the clamp body is cylindrical, and a workpiece ring groove is formed on the inner wall of the clamp body, and the diameter of the ring groove is The depth is smaller than the wall thickness of the workpiece, and an external thread is formed on the outer wall of the same end of the clamp body, and a threaded clamping sleeve is installed, and a workpiece positioning step is formed on the outer end surface of the threaded clamping sleeve.

Moreover, it also includes a part isolating ring, which is embedded in the workpiece ring groove made by the clamp body, and the thickness of the part isolating ring is smaller than the wall thickness of the part.

Moreover, four radial cylindrical holes are evenly distributed on the outer circle of the threaded clamping sleeve.

Advantage and beneficial effect of the present utility model are:

1. The inner contour of the focusing guide ring is CNC turning processing fixture. The workpiece is placed in the workpiece ring groove made in the fixture body, and the end adopts a threaded clamping sleeve to realize the positioning and clamping of the part. For positioning, the clamp body is clamped by the end face of the axial force, which greatly reduces the deformation and positioning accuracy of the parts.

2. The CNC turning processing jig for the inner contour of the focusing guide ring can hold two parts at the same time in the jig body, so that two parts can be processed at the same time, which greatly reduces the auxiliary operation time and improves the efficiency.

3. The CNC turning fixture for the inner contour of the focusing guide ring has four radial cylindrical holes on the outer circle of the clamping sleeve. By inserting the long axis into the hole for rotation, the workpiece can be quickly tightened and loosened. , to achieve efficient work.

4. The utility model is simple in structure, reasonable in design, simple in operation, reliable in positioning and clamping, and can realize simultaneous clamping of multiple pieces, complete one-time processing, greatly improve production efficiency, ensure product processing quality, and create considerable economic benefits for enterprises .

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

A fixture for CNC turning processing of the inner contour of a focusing guide ring, the innovation of which is that it is composed of a clamp body 2 and a threaded clamping sleeve 6, the clamp body is cylindrical, and a workpiece ring groove 8 is formed on the inner wall of one end of the clamp body. The radial depth of the annular groove is smaller than the wall thickness of the workpiece, and the outer wall of the same end of the clamping body is formed with an external thread and a threaded clamping sleeve is installed, and the outer end surface of the threaded clamping sleeve is formed with a workpiece positioning step 7 . Four radial cylindrical holes 9 are evenly distributed on the outer circle of the threaded clamping sleeve. By inserting a long shaft into the cylindrical hole for rotation, the workpiece can be quickly clamped and loosened to achieve high-efficiency work.

The working principle of the utility model is:

The part 3 is placed in the workpiece ring groove made in the clamp body, and the end adopts the threaded clamping sleeve to realize the positioning and clamping of the part, and the other end of the clamp body is installed in the three-jaw chuck 1 . The end face of the part and the outer cylinder are positioned, and the part is clamped to fully bear the axial force, and the axial rigidity is good. This method is easy to operate, and the positioning and clamping are reliable. In addition, multiple parts 5 are put into the clamping body, and spacer rings 4 are used to separate the parts, so that multiple parts can be clamped at the same time, and the processing can be completed at one time, which greatly improves the production efficiency, ensures the processing quality of the product, and reduces the production cost.

Claims (3)

1. profile numerical control turning clamp for machining in the focusing guide ring; It is characterized in that: constitute by clamp body and screw thread gripping sleeve; Clamp body is a cylindrical shape, is shaped on the workpiece annular groove at the inwall of clamp body, and the radial depth of this annular groove is less than workpiece; Outer wall in the same end of clamp body is shaped on external screw thread and the screw thread gripping sleeve is installed, and the outer face of this screw thread gripping sleeve is shaped on workpiece location stage.

2. profile numerical control turning clamp for machining in the focusing guide ring according to claim 1, it is characterized in that: also comprise a part shading ring, this part shading ring is inlaid in the made workpiece annular groove of clamp body, and the thickness of part shading ring is less than the part wall thickness.

3. profile numerical control turning clamp for machining in the focusing guide ring according to claim 1 is characterized in that: on the cylindrical of screw thread gripping sleeve, be uniformly distributed with and be shaped on four radially cylindrical holes.

Images