TWM517046U - Silent tool-changing arm structure of automatic tool changing system - Google Patents

Description

Silent tool changer structure of automatic tool change system

This creation is related to the automatic tool change system, especially a tool change arm structure.

Press, the automatic tool change system is used to replace the tool on the machine tool spindle for the next stage of machining operations. The automatic tool change system is provided with a tool change arm, and a joint portion for combining the cutters is respectively disposed at two ends thereof, and the tool change arm is provided with a top claw corresponding to each joint portion, thereby the tool top is abutted in the joint portion To avoid it falling.
As shown in FIG. 4, the top claw 5 is disposed in a chamber 61 inside the tool change arm 6, and has a shaft 51. The end of the shaft 51 is provided with a resisting block 52. The shaft 51 is sleeved with a spring 53. The shaft 53 is normally pushed upwardly in the direction of the joint portion 62, so that the abutting block 52 extends in the joint portion 62. When the tool changer 6 is rotated to cause the tool 7 to enter the joint portion 62, the cutter 7 will contact the abutment block 52 and push the shaft 51 inward while using the elastic force of the spring 53 to resist the cutter. 7, to achieve the purpose of the stable tool 7.
However, the rotation speed of the change arm 6 is fast, and in the above process, the resist 52 hits the cutter 7 at a high speed, thereby generating a large sound. In this case, noise is generated under the repeated action of the automatic tool change system, which affects the quality of the working environment. On the other hand, due to the high-speed impact of the abutting block 52 and the cutter 7, the mutual wear of the two can be caused, and the accuracy of the spindle of the processing machine can be impaired, which will cause a non-negligible influence.
In view of this, how to improve the above problems is the primary issue that the creative office wants to solve.

The main purpose of the present invention is to provide a silent tool change arm structure of an automatic tool change system, in which the top claw is normally received in the tool change arm, and if necessary, it is controlled to extend out against the tool, which has the function of reducing the action. The effect of noise.
To achieve the foregoing objectives, the present invention provides a silent tool change arm structure for an automatic tool change system, which includes:
a body connected to a drive shaft for being driven to rotate; the body is provided with at least two joints for joining the cutters;
a plurality of top claws, which are disposed in a one-to-one correspondence with the joint portion; each of the top claws includes a shaft rod, a spring and a positioning member, the positioning member is fixed to the body, and one end of the spring is fixed to The locating member is movably pushed against the shaft, and the shaft has a first end and a second end, wherein the first end extends to the joint portion, and the second end is connected to a safety pin ;
The spring normally drives the shaft to move in the direction of the safety pin so that the first end does not contact the tool located in the joint; and the safety pin pushes the second end of the shaft, thereby The first end projects and abuts the tool located in the joint.
Wherein, the body is respectively provided with a chamber corresponding to each joint portion, and each of the chambers is provided with an opening on the corresponding joint portion; each of the chambers is respectively provided with a top claw, and the first ends of the shafts are extended Corresponding to the opening of the chamber.
Preferably, the first ends of the shafts of the top claws are respectively provided with abutting block.
The above objects and advantages of the present invention are not to be understood in detail from the detailed description and the accompanying drawings.

1‧‧‧ body 11‧‧‧ drive shaft 12‧‧‧ joints 13‧‧‧ top claws 131‧‧‧ shafts 132‧‧ ‧ springs 133‧‧ ‧ positioning parts 134‧‧ ‧ slot chamber 135‧ ‧Long perforation 136‧‧‧ First end 137‧‧‧Second end 138‧‧‧Resistance block 14‧‧ ‧ 141‧‧‧ Opening 2‧‧‧Safety pinning 21‧‧ ‧ pinning 211‧ ‧‧Cone section 22‧‧‧Spring 3‧‧‧Control device 31‧‧‧Top surface 4‧‧‧Tools 5‧‧‧Top claw 51‧‧‧Axis 52‧‧‧Ramp block 53‧‧‧ Spring 6‧‧‧Changer arm 61‧‧‧Room 62‧‧‧Joint 7‧‧‧Tools

Figure 1 is a partial cross-sectional view of the creation;
The second and third figures are schematic diagrams of the interaction state between the top claw and the safety top pin;
Figure 4 is a partial cross-sectional view of a conventional structure.

Please refer to Figures 1 and 2, which show the structure of the silent tool changer of the automatic tool change system provided by the author (only one end is shown in the figure), which includes a body 1, a plurality of top claws 13 and plural Safety topping 2. In the embodiment, the body 1 is an elongated structure, and a driving shaft 11 is connected at the center thereof, and can be rotated by the driving shaft 11. The two ends of the body 1 are respectively provided with a joint portion 12 for joining the cutters, and a corresponding claw portion 13 is respectively disposed corresponding to each of the joint portions 12 for abutting the cutter 4 located in the joint portion 12 to fix the same. It is prevented from falling out of the joint portion 12.
In the present embodiment, the body 1 is provided with a chamber 14 corresponding to each of the joint portions 12, and each of the chambers 14 is provided with an opening 141 on the corresponding joint portion 12 for receiving the top claw 13 therein. It can extend from the opening 141. Each of the top claws 13 includes a shaft 131, a spring 132 and a positioning member 133. The shaft 131 is movably disposed in the chamber 14. The shaft 131 is recessed with a longitudinally extending groove chamber. 134 and a long through hole 135 extending through the body, and the positioning member 133 penetrates from one side of the body 1 and passes through the cavity 14 and the long hole 135 of the shaft 131 and is fixed to the body 1. In addition, the spring 132 is disposed in the slot 134 of the shaft 131. The one end is fixed to the positioning member 133 at one end, and the other end is movably abutted against the wall surface of the groove chamber 134, thereby forming the shaft 131 against the shaft 131. The role. Further, the shaft 131 has a first end 136 and a second end 137, wherein the first end 136 protrudes from the opening 141, and abutting block 138 is disposed at the end, and the second end 137 Connected to a safety pin 2, as shown in FIG. 2, the safety pin includes a pin member 21 and a spring 22, and the second end 137 is against the pin member 21, wherein the pin pin The member 21 has a tapered section 211 and the tapered end 211 abuts the second end 137. The spring 132 is normally pushed against the shaft 131 in the direction of the safety pin 2, in other words, the shaft 131 is pressed by the spring 132 to form a normal movement into the chamber 14. status.
With the above structure, when the automatic tool change system is actuated, the safety pin 2 controls the action of the pin member 21 by a control device 3, thereby controlling the action of the top claw 13. As shown in FIG. 2, when the body 1 is driven to rotate and the cutter 4 enters the joint portion 12, the pin member 21 abuts against the abutment surface 31 of the control device 3, and the shaft 131 is By the action of the spring 132, the abutting block 138 does not contact the tool 4, so that no noise is generated between the two, and the accuracy of the tool 4 is not affected by the abrasion of the two.
Then, when the automatic tool change system performs the drawing, as shown in FIG. 3, the body 1 is driven away from the control device 3, and at this time, the pin member 21 is released from the abutting surface 31 and is borrowed. Displacement is caused by the pushing of the spring 22. Thereby, the second end 137 of the shaft 131 is pushed by the pin member 21, so that the shaft 131 protrudes outwardly of the chamber 14 and is fastened to the cutter 4 by the abutting block 138. This achieves the purpose of fixing the tool 4, and no noise is generated throughout the process.
However, the disclosure of the above embodiments is intended to illustrate the present invention and is not intended to limit the present invention, so the replacement of equivalent elements should still be within the scope of this creation.
In summary, it can be made clear to the skilled person that the creation can achieve the aforementioned objectives, and it has already met the requirements of the Patent Law and submitted an application according to law.

1‧‧‧ Ontology

11‧‧‧Drive shaft

12‧‧‧Combination Department

13‧‧‧ top claw

131‧‧‧ shaft

132‧‧‧ Spring

133‧‧‧ positioning parts

134‧‧‧ slot room

135‧‧ long perforation

136‧‧‧ first end

137‧‧‧ second end

138‧‧‧

14‧‧ ‧ room

141‧‧‧ openings

2‧‧‧Safety pinning

4‧‧‧Tools

Claims (3)

A silent tool changer arm structure for an automatic tool change system, comprising:
a body connected to a drive shaft for being driven to rotate; the body is provided with at least two joints for joining the cutters;
a plurality of top claws, which are disposed in a one-to-one correspondence with the joint portion; each of the top claws includes a shaft rod, a spring and a positioning member, the positioning member is fixed to the body, and one end of the spring is fixed to The locating member is movably pushed against the shaft, and the shaft has a first end and a second end, wherein the first end extends to the joint portion, and the second end is connected to a safety pin ;
The spring normally drives the shaft to move in the direction of the safety pin so that the first end does not contact the tool located in the joint; and the safety pin pushes the second end of the shaft, thereby The first end projects and abuts the tool located in the joint. The structure of the silent tool changer of the automatic tool change system of claim 1, wherein the body is respectively provided with a chamber corresponding to each joint portion, and each of the chambers is provided with an opening on the corresponding joint portion; A top claw is respectively disposed, and the first end of each shaft protrudes from the opening corresponding to the chamber. The silent tool changer arm structure of the automatic tool change system of claim 1, wherein the first ends of the shafts of the top claws are respectively provided with abutting block.