CN209078389U - Light-duty angle head - Google Patents

Abstract

The light angle head disclosed by the utility model comprises a structural main body, the structural main body is composed of an upper seat and a lower seat which are connected up and down in combination, a longitudinal angular contact bearing is arranged between the upper seat and the lower seat to be connected up and down, and the upper seat is provided with A tool-changing positioning ring and a fixing bracket, the fixing bracket is provided with a positioning pin, a tool-changing fixing elastic piece is arranged on the positioning pin, and a guide pin is arranged between the fixing bracket and the tool-changing positioning ring; The lower seat includes a built-in transverse angular contact bearing, an upper gear and an ER output shaft connected to it. High precision, low torque, automatic tool change in tool magazine, suitable for polyhedron workpieces with high machining accuracy requirements and complex shapes, solving the difficulty of multiple clamping of the three-axis CNC machining center, and realizing the main face of the three-axis machining center. Machining can improve production efficiency and machining accuracy, and reduce the purchase cost of machine tools.

Description

light angle head

technical field

The utility model relates to the technical field of angle head design, in particular to a light angle head.

Background technique

The angle head is a machine tool attachment. After the angle head is installed on the machine tool, the rotation center line of the tool can be processed at an angle with the rotation center line of the spindle. Originating in Europe, it has been widely used in various fields of mechanical processing such as aviation, automobiles, and molds. Using the angle head can increase the processing range and adaptability without changing the structure of the machine tool, so that some processing that is difficult to complete with traditional methods can be realized, and it can reduce the repeated clamping of workpieces and improve the processing accuracy and efficiency. The angle head is mainly used in machining centers, can be installed in the tool magazine, and can be freely converted between the tool magazine and the machine tool spindle.

However, the angle heads in the prior art cannot satisfy the operation which requires extremely high work efficiency and work quality at the same time.

Utility model content

The purpose of this utility model is to provide a light-weight angle head, which can effectively solve the above-mentioned technical problems.

In order to effectively solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is as follows:

The light angle head includes a structural main body. The structural main body is composed of an upper seat and a lower seat that are connected in combination up and down. A longitudinal angular contact bearing is arranged between the upper seat and the lower seat to connect up and down. The upper seat is provided with a tool change positioning ring and a lower seat. a fixing bracket, a positioning pin is arranged on the fixing bracket, a tool-changing fixing shrapnel is arranged on the positioning pin, and a guiding pin is arranged between the fixing bracket and the tool-changing positioning ring; the lower seat includes a built-in transverse Angular contact bearing, upper gear and ER output shaft connected to it.

In particular, the upper seat is connected with a tool handle, and the tool handle is one of BT tool handle, CAT tool handle or HSK tool handle.

In particular, an O-shaped seal ring and a skeleton seal ring are provided at the connection between the tool change locating ring and the longitudinal angular contact bearing.

In particular, a plurality of sets of fixing screws are arranged between the fixing bracket and the upper seat to realize fixed connection.

In particular, a plurality of sets of upper and lower seat fixing screws are arranged at the connection between the upper seat and the lower seat to realize the fixed connection, and a top ring is arranged at the middle connection between the upper seat and the lower seat.

In particular, the upper gear is provided with a gear fixing screw, a gear fixing nut and a bearing fixing nut.

In particular, the lower seat includes a front cover and a rear cover that are fixed and packaged.

In particular, the rear section of the transverse angular contact bearing is provided with a second bearing fixing nut and a washer, the middle section is provided with a key and a fixing nut, and the front section is connected to the ER output shaft.

In particular, the ER output shaft is provided with an ER nut.

The beneficial effects of the present utility model are:

The light angle head disclosed by the utility model has high precision, small torque, and can be fed into the tool magazine for automatic tool change, which is suitable for polyhedral workpieces with high processing precision requirements and complex shapes, and solves the difficulty of multiple clamping of a three-axis CNC machining center. The main surface machining of the three-axis machining center is realized, which improves the production efficiency and machining accuracy, and reduces the purchase cost of the machine tool.

The present utility model will be described in detail below with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of the composition and structure of the medium and light angle head of the present invention.

FIG. 2 is a cross-sectional view of a medium and light angle head of the present invention.

Detailed ways

Example:

The following examples are used to illustrate the possible implementation of this patent, but are not intended to limit the scope of protection of this patent, and will be described first.

Referring to FIG. 1 and FIG. 2 , the first preferred embodiment of the present patent is shown. The light-duty angle head in this embodiment includes a structural main body 1 , and the structural main body 1 includes an upper seat 2 and a lower seat 3 that are connected in combination from top to bottom. , between the upper seat 2 and the lower seat 3, a longitudinal angular contact bearing 4 is arranged to connect up and down, the upper seat 2 is provided with a tool change positioning ring 5 and a fixing bracket 6, and the fixing bracket 6 is provided with a positioning pin 7, so The positioning pin 7 is provided with a tool-changing fixing elastic piece 8, and a guide pin 9 is arranged between the fixing bracket 6 and the tool-changing positioning ring 5; the lower seat 3 includes a built-in transverse angular contact bearing 10, an upper gear 11 and the ER output shaft 12 connected to it.

The specific design scheme of this embodiment is as follows:

The upper base 2 is connected with a handle 13, and the handle 13 is one of BT handle, CAT or HSK handle. An O-ring 14 and a skeleton sealing ring 15 are provided at the connection between the tool changing positioning ring 5 and the longitudinal angular contact bearing 4 . A plurality of sets of fixing screws 16 are arranged between the fixing bracket 6 and the upper seat 2 to realize fixed connection. The connection between the upper seat 2 and the lower seat 3 is provided with a plurality of sets of upper and lower seat fixing screws 17 for fixed connection, and a top ring 18 is provided at the middle connection between the upper seat 2 and the lower seat 3 . The upper gear 11 is provided with a gear fixing screw 19 , a gear fixing nut 20 and a bearing fixing nut 21 . The lower seat 3 includes a front cover 22 and a rear cover 23 that are fixed and packaged. The rear section of the transverse angular contact bearing 10 is provided with a second bearing fixing nut 24 and a washer 28 , the middle section is provided with a key 25 and a fixing nut 26 , and the front section is connected to the ER output shaft 12 . The ER output shaft 12 is provided with an ER nut 27 .

The technical features of the present embodiment that are different from the prior art are as follows:

The angle head of this embodiment is characterized by light weight, generally 5-15kg, high precision, small torque, and can be inserted into the tool magazine for automatic tool change. This type of angle head is positioned with a positioning block, and the output is generally a collet or a BT30 taper shank. Sometimes there are special ones that can output CAT or HSK tool shanks, and there are also some special direct-connected taps or face milling cutters. The angle head is suitable for polyhedral workpieces with high machining accuracy requirements and complex shapes. It solves the difficulty of multiple clamping of the three-axis CNC machining center, realizes the main face machining of the three-axis machining center, improves the production efficiency and machining accuracy, and reduces the purchase cost of the machine tool. .

The specific structural characteristics are as follows:

Good rigidity; high-strength alloy aluminum shell, light weight and good heat dissipation; special German screw bevel gear, Japanese P4 bearing, China Taiwan chuck and tool handle. When the large workpiece is difficult to fix, it is used in simple processing; the precision workpiece is fixed at one time, and multiple surfaces need to be processed; the machining is carried out at any angle relative to the reference plane; the processing is kept at a special angle for imitation milling pins such as ball end milling End face processing; double the processing rate; P4-grade high-precision spindle bearings with moderate oblique pressure (high-temperature grease for life) are suitable for medium and high-speed operation; high-precision bearings can be precisely machined. The head is replaceable and designed for multi-function machining.

Enriching the necessary functions and performance, the pocket-sized angle head is designed for 80% drilling and tapping processing, and integrates the necessary rigidity and precision design. The structure is simple, cheap and fast, and the assembly is very simple; no parts are required; fine adjustment of spacing Consistent with the real object; standardized parts and adjustable, positioning blocks, can be adjusted according to the exchange of the positioning pin and its length to correspond.

The present invention is not limited to the above-mentioned embodiments, and all the embodiments adopting structures and methods similar to those of the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims (9)

1. The light angle head is characterized in that it includes a structural main body, and the structural main body includes an upper seat and a lower seat that are connected in combination up and down, and a longitudinal angular contact bearing is arranged between the upper seat and the lower seat to connect up and down, and the upper seat is provided with There is a tool changing positioning ring and a fixing bracket, a positioning pin is arranged on the fixing bracket, a tool changing fixing elastic sheet is arranged on the positioning pin, and a guide pin is arranged between the fixing bracket and the tool changing positioning ring; The lower seat includes a built-in transverse angular contact bearing, an upper gear and an ER output shaft connected with it. 2 . The light-duty angle head according to claim 1 , wherein the upper seat is connected with a tool handle, and the tool handle is one of BT tool handle, CAT tool handle or HSK tool handle. 3 . 3 . The light-duty angle head according to claim 1 , wherein an O-ring and a skeleton sealing ring are provided at the connection between the tool-changing positioning ring and the longitudinal angular contact bearing. 4 . 4 . The light-duty angle head according to claim 1 , wherein a plurality of sets of fixing screws are arranged between the fixing bracket and the upper seat to realize fixed connection. 5 . 5 . The light-duty angle head according to claim 1 , wherein a plurality of sets of upper and lower seat fixing screws are arranged at the connection between the upper seat and the lower seat to realize fixed connection, and the middle connection between the upper seat and the lower seat is provided with a fixed screw. 6 . top circle. 6 . The light-duty angle head according to claim 1 , wherein the upper gear is provided with a gear fixing screw, a gear fixing nut and a bearing fixing nut. 7 . 7 . The light-duty angle head according to claim 1 , wherein the lower seat comprises a front cover and a rear cover which are fixed and packaged. 8 . 8 . The light-duty angle head according to claim 1 , wherein the rear section of the transverse angular contact bearing is provided with a second bearing fixing nut and a washer, the middle section is provided with a key and a fixing nut, and the front section is connected to the ER output shaft. 9 . The light-duty angle head according to claim 1 , wherein an ER nut is provided on the ER output shaft. 10 .