Core aligning mechanism for tool changing arm

Abstract

The utility model discloses a tool changing arm core aligning mechanism, which relates to the field of tool changing arm core aligning and comprises a tool changing arm body and a tool changing shaft used for driving the tool changing arm body to move, tool clamping elbows are fixedly arranged at two ends of the tool changing arm body, a rotating ring is rotatably arranged at the upper end of the tool changing arm body, two auxiliary tool arms are fixedly arranged on the outer side of the rotating ring, and the tool clamping elbows are fixedly arranged on the tool changing arm body. According to the utility model, through the arrangement of the rubber pad, when the auxiliary elbow and the cutter clamping elbow abut against a cutter, the impact force of the auxiliary elbow and the cutter clamping elbow on the cutter can be buffered through the rubber pad; the impact force of the auxiliary elbow and the cutter clamping elbow is prevented from being transmitted to the main shaft of the machining center through the cutter, so that the influence on the main shaft when the cutter is replaced is reduced to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tool changing arm core field, especially in a kind of tool changing arm core mechanism. BACKGROUND

[0002] Tool changing arm is important component in numerical control machine tool, for realizing the automatic replacement of tool, it is responsible for automatic replacement of tool in processing, to improve processing efficiency and accuracy, tool changing arm is widely used in various numerical control machine tools, such as vertical machining center, horizontal machining center etc., it is suitable for multi-species, single piece small batch production, tool changing arm core mechanism is a key component in numerical control machine tool, it is mainly responsible for ensuring the accurate centering of tool and main shaft in automatic tool changing process;

[0003] When tool changing arm is used, in order to guarantee the speed of tool changing, the moving speed of tool changing arm is very fast, therefore when tool changing arm contacts tool, because the contact between them is direct contact, this fast direct contact can generate certain impact vibration, this vibration not only directly influences tool, but also influences machining center main shaft connected with tool.

[0004] Therefore, it is necessary to provide a kind of tool changing arm core mechanism to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of tool changing arm core mechanism to solve the problem that impact vibration generated when tool changing arm guarantees fast tool changing influences tool and machining center main shaft.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of tool changing arm core mechanism, including tool changing arm body and be used to drive tool changing arm body to move tool changing shaft, the both ends of the tool changing arm body are fixedly provided with the tool clamping elbow, the upper end of the tool changing arm body is rotatably provided with rotating ring, the outer side of the rotating ring is fixedly provided with two vice tool arms;

[0007] The end of the vice tool arm is movably provided with the extension sleeve, the end of the extension sleeve is fixedly provided with auxiliary elbow, the auxiliary elbow and the tool clamping elbow are both provided with arc opening, and the opening of the auxiliary elbow and the tool clamping elbow is opposite.

[0008] The arc opening of the auxiliary elbow and the tool clamping elbow is all provided with rubber pad.

[0009] Preferably, the upper end of the tool changing arm body is fixedly provided with two first electric cylinders, and the output end of the first electric cylinder is fixedly provided with abutting head.

[0010] Preferably, the one end of the tool changing arm body is fixedly provided with extension plate, the lower end of the extension plate is fixedly provided with driving motor, the upper end of the extension plate is rotatably provided with driving gear, and the output shaft of the driving motor is fixedly connected with the end of driving gear.

[0011] Preferably, the outer side of the rotating ring is fixed with a driven gear ring, and the driven gear ring and the driving gear are engaged with each other.

[0012] Preferably, the upper end of the auxiliary tool holder is fixed with a second electric cylinder, and the output end of the second electric cylinder is fixedly connected with an extension sleeve, and the rotating ring is arranged outside the tool changing shaft.

[0013] Preferably, the upper end of the tool changing arm body is fixed with a shell for protecting the driven gear ring and the driving gear.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. By setting the rubber pad, when the auxiliary elbow and the tool clamping elbow abut against the tool, the rubber pad can buffer the impact force of the auxiliary elbow and the tool clamping elbow on the tool, prevent the impact force of the auxiliary elbow and the tool clamping elbow from being conducted to the main shaft of the machining center through the tool, and maximize the influence on the main shaft when the tool is replaced.

[0016] 2. By setting the auxiliary elbow and the tool clamping elbow, when the auxiliary elbow and the tool clamping elbow clamp the tool, the double-sided clamping can reduce the intensity of single-sided clamping, effectively reduce the single-sided stress of the tool, and the setting of the double-sided clamping facilitates the alignment of the auxiliary elbow and the tool clamping elbow to the tool. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a tool changing arm core mechanism structural schematic view of the utility model.

[0018] Figure 2 It is a tool changing arm body structural schematic view of the utility model.

[0019] Figure 3 It is a tool holder arm structural schematic view of the utility model.

[0020] Figure 4 It is a tool clamping elbow structural schematic view of the utility model.

[0021] In the figure: 1, tool changing arm body; 2, first electric cylinder; 3, abutting head; 4, tool clamping elbow; 5, tool changing shaft; 6, shell; 7, rotating ring; 8, auxiliary tool holder; 9, extension sleeve; 10, auxiliary elbow; 11, second electric cylinder; 12, extension plate; 13, driving gear; 14, driven gear ring; 15, driving motor. DETAILED DESCRIPTION

[0022] The utility model provides a Figure 1 - Figure 4The shown tool changing arm-to-core mechanism includes a tool changing arm body 1 and a tool changing shaft 5 for driving the tool changing arm body 1 to move. The tool changing arm body 1 is the prior art and is mainly used to change the tool required to be used in the machining center. Here, the tool changing arm body 1 is generally used in the use scene of the machining center, facilitating batch processing or long-time processing. The tool changing arm body 1 is provided with a tool clamping elbow 4 at both ends, which is mainly used to sleeve the tool. The tool changing arm body 1 is provided with two first electric cylinders 2 at the upper end. The first electric cylinder 2 is the prior art and is a commonly used electric cylinder in the machining center. The output end of the first electric cylinder 2 is provided with a contact head 3. The tool changing shaft 5 is a main part of the tool changing in the machining center and is controlled by a servo system such as a servo motor. The tool changing shaft 5 mainly performs rotating and lifting movements. The tool changing shaft 5 drives the tool changing arm body 1 to descend. The tool changing arm body 1 descends to the appropriate position. The tool changing shaft 5 rotates through the servo motor. The tool changing arm body 1 rotates with the tool changing shaft 5. The tool changing arm body 1 drives the tool clamping elbow 4 to rotate. The tool clamping elbow 4 sleeves the tool. The first electric cylinder 2 works. The first electric cylinder 2 drives the contact head 3 to move to abut the tool. The tool changing arm body 1 is provided with an outer shell 6 for protecting the driven gear ring 14 and the driving gear 13 at the upper end.

[0023] The tool changing arm body 1 is provided with an extension plate 12 at one end. The extension plate 12 is provided with a driving motor 15 at the lower end. The driving motor 15 is a servo motor and is the prior art. The upper end of the extension plate 12 is provided with a driving gear 13. The output shaft of the driving motor 15 is fixedly connected with the end of the driving gear 13. The driving motor 15 is turned on to drive the driving gear 13 to rotate. The tool changing arm body 1 is provided with a rotating ring 7 at the upper end. The rotating ring 7 is provided with a driven gear ring 14 at the outer side. The driven gear ring 14 and the driving gear 13 are in mesh with each other. The driving gear 13 drives the driven gear ring 14 to rotate. The driven gear ring 14 drives the rotating ring 7 to rotate.

[0024] The rotating ring 7 is sleeved outside the tool changing shaft 5, two auxiliary tool arms 8 are fixed outside the rotating ring 7, the end of the auxiliary tool arm 8 is movably provided with an extension sleeve 9, a second electric cylinder 11 is fixed on the upper end of the auxiliary tool arm 8, the second electric cylinder 11 is prior art, and will not be described in detail here, the output end of the second electric cylinder 11 is fixedly connected with the extension sleeve 9, the extension sleeve 9 can move in and out at the end of the auxiliary tool arm 8 through the second electric cylinder 11, an auxiliary elbow 10 is fixed at the end of the extension sleeve 9, the auxiliary elbow 10 and the tool clamping elbow 4 are both provided with arc-shaped openings, the openings of the auxiliary elbow 10 and the tool clamping elbow 4 are opposite, the arc-shaped openings of the auxiliary elbow 10 and the tool clamping elbow 4 are both provided with rubber pads, the rubber pads are plastic rubber, mainly play the role of shock absorption and buffering, the rotating ring 7 drives the auxiliary tool arm 8, the auxiliary tool arm 8 drives the extension sleeve 9 to rotate, the extension sleeve 9 drives the auxiliary elbow 10 to rotate, at the same time, the second electric cylinder 11 drives the extension sleeve 9 to move, the extension sleeve 9 drives the auxiliary elbow 10 to move, the tool is clamped by the auxiliary elbow 10 and the tool clamping elbow 4 at the same time, which is convenient for aligning the tool.

[0025] Through the setting of the rubber pad, when the auxiliary elbow 10 and the tool clamping elbow 4 abut against the tool, the impact force of the auxiliary elbow 10 and the tool clamping elbow 4 on the tool can be buffered through the rubber pad, preventing the impact force of the auxiliary elbow 10 and the tool clamping elbow 4 from being transmitted to the main shaft of the machining center through the tool, thereby minimizing the influence on the main shaft when the tool is replaced.

[0026] Through the setting of the auxiliary elbow 10 and the tool clamping elbow 4, when the auxiliary elbow 10 and the tool clamping elbow 4 clamp the tool, the force of single clamping is reduced through double clamping, which can effectively reduce the single force of the tool, and through the setting of double clamping, the auxiliary elbow 10 and the tool clamping elbow 4 are convenient for aligning the tool.

Claims

1. A tool changer arm core mechanism comprising a tool changer arm body (1) and a tool changer shaft (5) for moving the tool changer arm body (1), characterized in that: The tool clamping elbow (4) is arranged at both ends of the tool changing arm body (1), a rotating ring (7) is arranged at the upper end of the tool changing arm body (1), two auxiliary tool arms (8) are arranged at the outer side of the rotating ring (7), and the auxiliary tool arms (8) are arranged at the end of the tool clamping elbow (4). The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite. The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

2. The tool changing arm-to-core mechanism according to claim 1, characterized in that The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

3. The tool changing arm-to-core mechanism according to claim 1, characterized in that The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

4. The tool changing arm-to-core mechanism according to claim 3, characterized in that The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

5. The tool changing arm-to-core mechanism according to claim 1, characterized in that The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

6. The tool changing arm-to-core mechanism according to claim 4, characterized in that The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite. The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite. The auxiliary elbow (10) and the tool clamping elbow (4) are provided with arc-shaped openings, and the openings of the auxiliary elbow (10) and the tool clamping elbow (4) are opposite.

Images