JPH0675636U - Tool pot key positioning device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a tool pot key positioning device which is rationally configured as a cam-type mechanism and in which the movement of the relay pot and the movement of the tool in the relay pot in the key direction are simultaneously performed. The purpose is to In the key positioning device 100 that controls the key K direction of the tool pot 4 at the exchange position (C) and the delivery standby position (B) of the spindle 2, the relay pot 20 rotatably held in the cylindrical body 21. Is the rear end shaft portion 22
Is exposed from the cylinder, and is equipped with a support ring 23,
The relay pot 13 is pivotally connected to the bifurcated hook 13 of the rod 12 of the cylinder 11, and the relay pot is moved up and down by the cylinder along with the tubular body, and the cam plate 25 for key positioning is placed on the machine body 3 at the rear position of the relay pot. To the vertical posture L2, and the groove cam of the cam plate is engaged with the trochanter (cam follower) 26 provided at the rear end of the relay pot, and the key direction is changed from the horizontal posture L1 to the vertical posture in synchronization with the rise of the relay pot. It is the key positioning device 100 of the tool pot that controls the posture L2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a tool pot key positioning device installed in an automatic tool changing device of a machine tool, and is reasonably configured as a cam type mechanism.

[0002]

[Prior art and problems]

 Conventionally, in automatic tool changers installed in machine tools, etc., the tool of the tool magazine is replaced by a relay pot in the model in which the tool of the spindle and the tool of the tool magazine are exchanged using the exchange arm device. There is a system in which the tool of the main shaft and the tool of the relay pot are exchanged at this position. In this relay pot method, if the key direction position of the tool attached to the spindle and the key direction position of the tool in the relay pot do not match, the tool change operation cannot be performed by the exchange arm. Therefore, a turning mechanism is appropriately provided so that the key direction position of the tool in the relay pot matches the key direction of the spindle tool.

However, in the conventional method, the movement of the relay pot and the operation of the tool in the relay pot in the key direction are performed at different timings by different driving, so that there is a delay in the operation time and the mechanism is complicated. It has become.

[0004]

[Problems to be solved by the device]

 In view of the above-mentioned conventional problems, the present invention is rationally configured as a cam type mechanism, and the key positioning of the tool pot in which the movement of the relay pot and the movement of the tool in the relay pot in the key direction are simultaneously performed. The purpose is to provide a device.

[0005]

[Means for Solving the Problems]

 According to the present invention, in a key positioning device that controls the key direction of a tool pot in a main shaft exchange position and a delivery standby position, a relay port rotatably held in a cylinder has a rear end shaft portion of the cylinder body. It is exposed to the outside and is equipped with a support ring.It is pivotally connected to the bifurcating tool of the rod of the cylinder, and the relay pot is moved up and down by the cylinder along with the cylinder, and the cam plate for key positioning is attached. , Is fixed vertically on the machine at the rear position of the relay pot, and the groove cam of the cam plate is engaged with the roller (cam follower) provided at the rear end of the relay pot to synchronize with the rise of the relay pot. The key positioning device for the tool pot is characterized by controlling the direction of the key in a horizontal posture or a vertical posture.

According to the present invention, since the cam type mechanism is rationally configured, while the relay pot moves between the tool magazine position and the relay standby position, the position of the tool in the relay pot in the key direction is changed. The indexing operation is performed at the same time, there is no operation time delay, and the mechanism is simple.

[0007]

【Example】

 Hereinafter, an example shown in the drawings will be described. 1 is a front view of an automatic tool changer equipped with a tool pot key positioning device of the present invention, FIG. 2 is a side view of the present invention, FIG. 3 is a plan sectional view of the present invention, and FIG. FIG. 6 is an operation diagram showing key positioning.

FIG. 1 shows the front of a horizontal machining center, which is an automatic tool changer 10 equipped with a tool pot key positioning device 100 of the present invention. The spindle 2 of the spindle head 1 is stopped with the key K in the horizontal posture L1. A rotary drum type tool magazine 4 is mounted on the machine body 3, and a large number of tools TH ... The tool TH that circulates to the tool delivery position (a) has the vertical posture L2 in the direction of the groove M that engages with the key K. The relay pot 20 is mounted by mounting the tubular body 21 on the guide rails 7 and 8 of the support body 6 on the machine body 3, and is connected to the bifurcated hook 13 of the rod 12 of the cylinder 11 that hangs upward. 11 is moved up and down to move between a tool delivery position (a) with the tool magazine 4 and a delivery standby position (b) with the exchange arm 5. When the relay pot 20 stops moving to the tool delivery position (a), the grip portion of the tool TH is engaged with the grip claw H, and then the tool magazine 4 is moved in the direction of the arrow (a) to move the tool TH. Can be pulled out from the relay pot 20. Further, the tool TH at the transfer standby position (b) with the exchange arm 5 is exchanged by the exchange arm 5 with the tool TH1 of the spindle 2 at the exchange position (c).

During the above tool exchanging operation, the tool TH stops the key K in the horizontal posture L1 at the exchanging position (c) of the main spindle 2 and the delivery standby position (b), and the tool delivering position with the tool magazine 4 (i.e. The key positioning device 100 of the tool pot for controlling the direction of the groove M engaging with the key K to the vertical posture L2 will be described below. The key positioning device 100 has a function as a turning drive mechanism that operates in synchronization with the vertical movement of the relay pot 20. That is, the relay pot 20 rotatably held in the tubular body 21 has its rear end shaft portion 22 exposed from the tubular body 21, and is equipped with a support ring 23. The rod 12 of the cylinder 11 is bifurcated. It is pivotally connected to the hanging device 13. Therefore, the relay pot 20 is moved up and down by the cylinder 11 together with the cylindrical body 21, and the tool transfer position (a) and the transfer standby position (b) are located above and below the detection piece 21a of the cylindrical body 21. It is detected by the sensors LS1 and LS2, it is confirmed that it is positioned at this position, and it is stopped. Reference numeral 25 denotes a cam plate for positioning a key, which is fixed in a vertical posture on the machine body 3 which is a rear position of the relay pot 20. An S-shaped grooved cam 25a as shown in FIG. 4 is formed on the front surface of the cam plate 25, and a trochanter (cam follower) 26 provided at the rear end of the relay pot 20 is engaged with this. Then, when the tool delivery position (a) is raised, the trochanter (cam follower) 26 is at the upper limit position of the groove cam 25a and controls the direction of the key K to the vertical posture L2. 2), the trochanter (cam follower) 26 is at the lower limit position of the grooved cam 25a and has the relationship of stopping the key K in the horizontal posture L1.

The tool pot key positioning device 100 of the present invention is constructed as described above and operates as follows. First, prior to the tool exchange of the tool TH, the spindle head 1 is raised to position and stop the spindle 2 at the exchange position (C), and the key K is in the horizontal posture L1. On the other hand, the tool TH to be newly replaced is in the delivery standby position (b) in which the relay pot 20 is lowered, and is stopped in advance with the key K in the horizontal posture L1. In this state, the exchange arm 5 pivotally moves to exchange the old and new tools. After this, the spindle head 1 moves in the direction of workpiece machining, raises the relay pot 20 at the delivery standby position (b), and waits the old tool TH at the tool delivery position (a) of the tool magazine 4 Let H engage. With the upward movement of the relay pot 20, the trochanter (cam follower) 26 at the lower limit position of the groove cam 25a is moved to the upper limit position of the groove cam 25a so as to change and rotate the key K from the horizontal posture L1 to the vertical posture L2. Move synchronously. After that, after indexing to the next exchange tool, a new tool TH is inserted into the relay pot 20 and placed at the tool delivery position (a) of the magazine 4 before the tool exchange. Then, in response to the tool exchange command, the relay pot 20 starts to move downward, and the trochanter (cam follower) 26 moves from the upper limit position of the groove cam 25a to the delivery standby position (b), and the direction of the key K becomes horizontal. Synchronous action is performed to stop the posture L1.

It is needless to say that the present invention is not limited to the above-mentioned one embodiment, and design changes can be made within the scope of the invention.

[0012]

【effect】

 Since the present invention is rationally configured as a cam type mechanism, while the relay pot moves between the tool magazine position and the relay standby position, the indexing operation of the key direction position of the tool in the relay pot is performed simultaneously. As a result, there is no delay in operating time, and the mechanism is simple.

[Brief description of drawings]

FIG. 1 is a front view of an automatic tool changer equipped with a tool pot key positioning device of the present invention.

FIG. 2 is a side view of a key positioning device of a tool pot according to the present invention.

FIG. 3 is a plan sectional view of the present invention.

FIG. 4 is an operation diagram showing a key positioning device.

[Explanation of symbols] 1 spindle head 2 spindle 3 machine body 5 exchanging arm 4 tool magazine 6 support 10 automatic tool changer H gripping claw K key TH tool L1 horizontal posture L2 vertical posture 11 cylinder 20 relay pot (a) tool passing position (B) Delivery standby position (c) Exchange position 25 Cam plate 25a Groove cam 26 Roller (cam follower)

[Procedure amendment]

[Submission date] February 25, 1994

[Procedure 3]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

Claims (1)

[Scope of utility model registration request] 1. A key positioning device for controlling a key direction of a tool pot at a main shaft exchange position and a delivery standby position, wherein a relay pot rotatably held in a cylinder has a rear end shaft portion exposed from the cylinder. A supporting ring is attached to this, and it is pivotally connected to the bifurcating tool of the rod of the cylinder, and the relay pot is moved up and down by the cylinder along with the cylinder body, and the cam plate for key positioning is connected to the relay pot of the relay pot. It is fixed vertically on the machine body at the rear position, and the groove cam of the cam plate is engaged with the trochanter (cam follower) provided at the rear end of the relay pot, and the direction of the key becomes horizontal in synchronization with the rise of the relay pot. A key positioning device for a tool pot, which is controlled to a posture or a vertical posture.