Tool arm tool buckling self-locking mechanism of tool changing system of machining tool

Abstract

The utility model relates to the technical field of machine tool tool changing systems, in particular to a tool arm tool buckling self-locking mechanism of a machining machine tool tool changing system. The self-locking device comprises a main body shell, a cam transmission module arranged in the main body shell, an output shaft matched with the cam transmission module to be communicated, a cam rocker arm assembly installed on the outer side of the main body shell and matched with the cam transmission module to be connected, and a self-locking assembly installed on the output shaft and driven by the cam rocker arm assembly. And the knife pouch self-locking mechanism is arranged on the self-locking assembly. The self-locking mechanism has the advantages that by means of the additional cam rocker arm mechanism, when a tool arm of a tool changing system rotates to a tool buckling position, a spring ejector pin for controlling the self-locking mechanism is ejected out to release a self-locking ejector rod to buckle a tool sleeve, and the function that the tool sleeve does not fall off when the tool arm conducts tool changing action is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of machine tool tool changing systems, and in particular to a tool arm locking mechanism for a machining tool tool changing system. Background Technology

[0002] The standard machine tool tool changing mechanism is vertical, with the tool arm positioned horizontally below the tool changing mechanism. The self-locking spring pin controlling the tension of the tool arm and tool sleeve is in a relaxed state before the tool is pulled down. When the output shaft is pulled down and the spring pin is relaxed, the self-locking spring pin will pop out and lock the tool sleeve to prevent it from falling off during tool changing. In a horizontal tool changing mechanism, the tool arm is positioned vertically. If the self-locking spring pin has not yet moved to lock the tool sleeve when the tool is pulled down, there is a high probability that the tool sleeve will fall off the tool arm, resulting in tool changing failure. Therefore, the purpose of this patent application is to add a pre-locking mechanism.

[0003] The existing technology, CN202121158853X, has the following disadvantages in the current use of tool magazines: The standard tool changer system is a horizontal tool changer. There is a flange at the tool locking point that fits into the groove of the tool sleeve. When the tool changer is not pulled down, the locking mechanism is not pulled down, and the push rod is not popped up, the tool sleeve will not disengage from the tool locking point. Rotating the standard ATC40 tool changer system 90 degrees so that its output shaft is in a horizontal position and the tool arm is in a vertical position, it becomes the ATC40 horizontal tool changer system. Because the tool arm is perpendicular to the ground, the flange on the tool locking point of the tool arm cannot support the tool sleeve when the tool changer starts. The self-locking push rod does not pop up to lock the tool sleeve because the output shaft of the ATC40 tool changer system is not pulled down. As a result, the tool sleeve is easy to disengage from the tool locking point during the tool changer operation, causing the tool changer to fail.

[0004] Therefore, it is necessary to design a tool arm locking mechanism for a machine tool tool changing system to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a tool arm locking mechanism for a tool changing system of a machining tool, so as to overcome the above-mentioned shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The utility model discloses a tool holder self-locking mechanism of tool arm of tool changing system of processing machine tool, it includes main body shell, cam transmission module who is placed in the main body shell, the output shaft who cooperates the cam transmission module and connects, its characterized in that: still include the cam rocker arm assembly who installs in the main body shell outside and cooperates the cam transmission module and connects, the self-locking assembly who installs in the output shaft and is driven by the cam rocker arm assembly, and the tool holder self-locking mechanism who installs on the self-locking assembly, the cam rocker arm assembly includes rocker, and through the roller bearing is installed in the middle of the rocker while being placed on the plane cam of the cam transmission module, the self-locking assembly includes sliding module, the slide rail action board who is installed on the sliding module through the nut, one end of the slide rail action board cooperates the tool holder self-locking mechanism fixed connection, and the other end is connected through the roller bearing the other end of the rocker.

[0008] Preferably, the tool holder self-locking mechanism includes a front flange mounted on the output shaft and cooperating with the main body shell, a bidirectional oil seal placed in the front flange, a sealing ring, a linear bearing placed around the front flange, a bearing guard plate placed on the outer surface of the front flange and cooperating with the bearing guard plate, and a self-locking action plate.

[0009] Preferably, the sliding module includes a linear slide rail arranged outside the main body shell and a linear slide rail seat slidingly arranged on the linear slide rail.

[0010] Preferably, the cam rocker arm assembly further includes a rocker fixing bottom shaft arranged outside the main body shell, an inner needle-shaped thrust bearing placed in the rocker fixing bottom shaft, a rocker arranged in the rocker fixing bottom shaft through a needle-shaped bearing, an outer needle-shaped thrust bearing placed in the rocker, a rocker fixing upper shaft arranged on the outer needle-shaped thrust bearing through a gasket, and a hole groove arranged in the middle of the rocker.

[0011] The utility model discloses a tool holder self-locking mechanism of tool arm of tool changing system of processing machine tool, it includes main body shell, cam transmission module who is placed in the main body shell, the output shaft who cooperates the cam transmission module and connects, its characterized in that: still include the cam rocker arm assembly who installs in the main body shell outside and cooperates the cam transmission module and connects, the self-locking assembly who installs in the output shaft and is driven by the cam rocker arm assembly, and the tool holder self-locking mechanism who installs on the self-locking assembly, the cam rocker arm assembly includes rocker, and through the roller bearing is installed in the middle of the rocker while being placed on the plane cam of the cam transmission module, the self-locking assembly includes sliding module, the slide rail action board who is installed on the sliding module through the nut, one end of the slide rail action board cooperates the tool holder self-locking mechanism fixed connection, and the other end is connected through the roller bearing the other end of the rocker. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structural diagram of the utility model discloses a tool holder self-locking mechanism of tool arm of tool changing system of processing machine tool;

[0013] Fig. 2 It is the explosion drawing of the utility model discloses a tool holder self-locking mechanism of tool arm of tool changing system of processing machine tool;

[0014] In the figure: 1, main body shell; 2, cam transmission module; 3, output shaft; 4, cam rocker assembly; 5, self-locking assembly; 6, tool holder self-locking mechanism; 41, rocker fixed bottom shaft; 42, inner needle thrust bearing; 43, needle bearing; 44, rocker; 45, outer needle thrust bearing; 46, gasket; 47, rocker fixed upper shaft; 48, hole groove; 49, roller bearing; 51, linear slide rail; 52, linear slide rail seat; 53, slide rail action plate; 61, output front flange; 62, bidirectional oil seal; 63, linear bearing; 64, bearing shaft; 65, bearing guard plate; 66, self-locking action plate. DETAILED DESCRIPTION

[0015] REFERENCE Figs. 1-2 A tool arm tool changing self-locking mechanism of a machining tool changer, comprising a main body shell 1, a cam transmission module 2 placed in the main body shell, an output shaft 3 connected with the cam transmission module, a cam rocker assembly 4 installed outside the main body shell and connected with the cam transmission module, a self-locking assembly 5 installed on the output shaft and driven by the cam rocker assembly, and a tool holder self-locking mechanism 6 installed on the self-locking assembly.

[0016] The cam rocker assembly 4 comprises a rocker fixed bottom shaft 41 installed outside the main body shell, an inner needle thrust bearing 42 placed in the rocker fixed bottom shaft, a rocker 44 installed in the rocker fixed bottom shaft through a needle bearing 43, an outer needle thrust bearing 45 placed in the rocker, and a rocker fixed upper shaft 47 installed on the outer needle thrust bearing through a gasket 46.

[0017] A hole groove 48 is provided in the middle of the rocker, and a roller bearing 49 is installed in the hole groove and placed on a planar cam 21 of the cam transmission module; the cam rocker assembly is far away from the output shaft, so a set of linear slide rails are used to link an action plate to eliminate part of the side force.

[0018] The self-locking assembly 5 comprises a linear slide rail 51 provided outside the main body shell, a linear slide rail seat 52 slidably installed on the linear slide rail, and a slide rail action plate 53 installed on the linear slide rail seat through a nut.

[0019] One end of the slide rail action plate is fixedly connected with the tool holder self-locking mechanism, and the other end is connected with the other end of the rocker through a roller bearing.

[0020] The knife sleeve self-locking mechanism 6 comprises a power output front flange 61 mounted on the power output shaft and matched with the main body shell, a bidirectional oil seal 62 arranged in the power output front flange, a sealing ring, a linear bearing 63 arranged around the power output front flange, a bearing cover plate 65 arranged on the outer surface of the power output front flange and matched with the linear bearing, and a self-locking action plate 66 matched with the bearing cover plate;

[0021] The self-locking action plate is matched with the knife sleeve and is mounted;

[0022] The cam transmission module 2 drives the cam rocker assembly 4 to be synchronously driven, i.e. the rocker arm 44 is driven to rotate, the rocker arm 44 is connected with the slide rail action plate 53, thereby driving the slide rail action plate 53 to move along the linear slide rail, thereby driving the bearing cover plate 65 to move along the linear bearing, and simultaneously driving the knife sleeve to drive,

[0023] The utility model discloses the beneficial effect, the technical scheme utilizes one group of cam rocker mechanism, when the knife arm of tool changing system rotates to buckle the knife, will control the spring needle of self-locking mechanism and eject the self-locking top rod and buckle the knife sleeve, has reached the function that the knife arm does not fall off when carrying out the tool changing action, will control the lock knife action spring needle pressing plate and utilize one group of cam rocker to make it become or dynamic pressing plate.

[0024] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model does not limit to this, any skilled person in the art in the utility model discloses the technical range of the utility model, according to the utility model technical scheme and the utility model concept, carries out equivalent replacement or changes, should cover in the protection scope of the utility model.

Claims

1. A tool holder self-locking mechanism of a tool changing system of a machining tool, comprising a main body shell, a cam transmission module arranged in the main body shell, and an output shaft connected to the cam transmission module, characterized in that: The cam rocker assembly is installed outside the main body shell and connected with the cam transmission module, the self-locking assembly is installed on the output shaft and driven by the cam rocker assembly, and the tool holder self-locking mechanism is installed on the self-locking assembly.

2. The tool arm tool clamping self-locking mechanism of a tool changing system of a machine tool according to claim 1, characterized in that: The tool holder self-locking mechanism comprises a front flange installed outside the output shaft and connected with the main body shell, a bidirectional oil seal arranged in the front flange, a sealing ring, a linear bearing arranged around the front flange, a bearing cover plate installed on the outer surface of the front flange through the linear bearing, and a self-locking action plate installed on the bearing cover plate.

3. The tool arm tool clamping self-locking mechanism of a tool changing system of a machine tool according to claim 1, characterized in that: The sliding module comprises a linear slide rail arranged outside the main body shell and a linear slide rail seat slidingly installed on the linear slide rail.

4. The tool arm tool clamping self-locking mechanism of a machine tool tool changing system according to claim 1, characterized in that: The cam rocker assembly further comprises a rocker fixing bottom shaft installed outside the main body shell, an inner needle-shaped thrust bearing arranged in the rocker fixing bottom shaft, a rocker installed in the rocker fixing bottom shaft through the needle-shaped bearing, an outer needle-shaped thrust bearing arranged in the rocker, and a rocker fixing upper shaft arranged on the outer needle-shaped thrust bearing through a gasket cover.

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