JPH04106136U - Automatic tool changer in face plate - Google Patents

Abstract

(57) [Summary] [Purpose] To enable automatic exchange of tools attached to the face plate. [Structure] A tool holder 50 is fixed to the face-shaving slide 43 of the face plate 40, and when this tool holder 50 is positioned at a predetermined position, the coupler (60) and the tool holder 50 are joined to the tool holder 50. Supply hydraulic oil for unclamping. In addition, when processing is performed by rotating the face plate 40, the tool holder 50 and the coupler (6
0) is released. [Effect] Machining including face milling using a face plate, large diameter boring, etc. can be performed automatically and unattended.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is an automatic tool changer on the face plate of horizontal machining centers, boring machines, etc. Regarding equipment.

0002

[Conventional technology]

Face plates in machine tools are used to diversify machining. And Canada Due to the demand for automation and unmanned machining, automatic replacement of face plates is required in the same way as regular automatic tool replacement. Replacement is also taking place. In particular, numerical control faceplates controlled by numerical control. automatic replacement plays a major role in improving the workability and processing accuracy of unmanned machines. Fulfilling.

0003

[Problem that the idea aims to solve]

However, with automation and unmanned operations, even more diverse processing is possible. It is necessary to automate the exchange of tools attached to the face plate. However, the main It is used by being removably attached to the tip of the shaft, and the face plate itself is removed during machining. rotates, so the tool holder attached to the face plate can be clamped or unclamped. It is very difficult to supply the hydraulic pressure to perform the pumping. Therefore, conventionally, the face plate There is no automatic change of installed tools, so face milling or large In the case of processing including diameter boring etc., automation and unmanned operation cannot be achieved. There was a problem. This invention was devised in view of the above-mentioned problems. The purpose is to provide a device that enables automatic tool replacement.

0004

[Means to solve the problem]

In order to achieve the above objective, the automatic tool changer for the face plate of the present invention is a horizontal type A face plate that is removably attached to the main shaft of a machining center, etc., and the diameter of this face plate. The tool holder is fixed to a facing slide that moves in the direction, and the main shaft can be rotated freely. It is fixed to the face plate body which is fixed to the supporting spindle head, and is used for the movement of the face milling slide mentioned above. Therefore, when the tool holder is positioned at a predetermined position, the tool holder and the The tool holder is positioned at the specified position by the movement of the coupler and the facing slide mentioned above. A tool arranged to face the tool holder when in a positioned state The magazine and the above tool holder are connected to the coupler, and the tool magazine is When changing tools, supply hydraulic oil to the tool holder via the above coupler. It is composed of a control section that controls the operation.

[0005]

[Effect]

The automatic tool changer for the face plate with this configuration has a face-shaving slide. Once positioned in place, the tool holder fixed to the face plate and coupler are connected. hydraulic oil for the clamper is supplied to the tool holder, allowing automatic tool change. Ru. When the tool change is complete, the tool holder and coupler are uncoupled and the surface The plate can be rotated for processing.

[0006]

【Example】

Hereinafter, one embodiment of the automatic tool changer for the face plate of the present invention will be described. FIG. 1 shows a front view of the present device used in a horizontal machining center. This figure 1 , 10 is the machine body, 20 is the table, 30 is the tool magazine, and 40 is the surface. The plate, 50 is a tool holder attached to the face plate, and 60 is a coupler.

[0007] The machine body 10 includes a bed 11 and a column 1 that moves on the bed 11 in the Z-axis direction. 2, and a spindle head 13 provided on the side of the column 12 so as to be movable in the Y-axis direction. There is. This spindle head 13 rotatably supports the main shaft (not shown) of the machine body. Ru.

[0008] The table 20 is mounted on the upper part of the slideway 21 in the X-axis direction (Fig. It is mounted so that it can be moved in the depth direction in 1), and the workpiece is placed on its top surface. . Similar to the table 20, the tool magazine 30 also has a Y-axis and It is mounted so that it can move in a direction perpendicular to the Z axis. This tool magazine 30 is It is placed on the slideway 21 so as to face the tip of the main shaft (face plate), and is attached to the face plate. Various tools to be attached to the attached tool holder 50 and the spindle itself are stored.

[0009] Next, the face plate 40 and the tool holder 50 will be explained in detail with reference to FIGS. 2 and 3. The face plate 40 is rotatably supported by a face plate main body 41 fixed to the spindle head 13. It is removably attached to the tip of the main shaft of the machine body. And machine tools When equipped with an automatic face plate replacement device, the face plate will be replaced automatically. As the face plate 40, It is also possible to use a regular type, but from the viewpoint of controllability, processing accuracy, etc. It is preferable to use a numerically controlled face plate as shown in Utility Model Publication No. 54-13666. (This embodiment will be described assuming that a numerically controlled face plate is used.) Face plate 40 A guide path 42 is formed in the radial direction at the center of the surface, and this guide path 42 is provided with numerical control. Therefore, a facing slide 43 is provided which moves in the radial direction.

0010 The tool holder 50 is fixed to the face-shaving slide 43 of the face plate 40, and is Therefore, it moves in the radial direction of the face plate together with the face cutting slide 43. Tool holder 50 Inside is always biased to the right side in the figure by a disc spring 52, and when hydraulic oil is supplied, the disc spring 52 A piston 51 is provided which moves to the left in the figure against a spring 52. This piston 5 1 is integrated with a rod 53 whose tip engages inside the tapered portion of the tool T. . A plurality of balls 54 can be freely moved around the tip end of the rod 53. It is installed like this. In addition, a stopper and an extrusion member for the tool T are provided on the outer periphery of the intermediate portion near the tip of the rod 52. A protrusion 55 is formed which also serves as a.

[0011] At the center of the piston 51 and the rod 52, there is an escape groove 57 for the ball 54 on the outer periphery of the tip. A center rod 56 having a diameter is provided so as to be relatively movable therethrough. This center rod 5 6 is always biased toward the right side in the figure by a coil spring 58, and when hydraulic oil is supplied, the coil It moves to the left side of the figure against the force of the spring 58.

0012 The coupler 60 is attached to the tip of an arm 61 fixed to the face plate main body 41. Ru. Therefore, coupler 60 is held in a fixed position without rotation. Cap The installation position of the face plate 40 is determined by rotationally indexing the face plate 40 to a reference angle, and When the tool holder 50 moves to the reference position, that is, the tool holder 50 moves to the predetermined position. When positioned at this position, it is in a position where it can be joined to the tool holder 50.

[0013] Also, check the joint state of the coupler 60 and the tool holder 50. A sensor 62 is attached for this purpose. As a result, if there is an abnormality in the bond, the following steps will be taken: The subsequent operation will be canceled and an alarm etc. will be generated if necessary. The supply of hydraulic oil to this coupler 60 (tool holder 50) is carried out by supporting the spindle head 13. A hose 64 is supported by a section 63 (see FIG. 1) and connected to a hydraulic power source (not shown). It is done.

[0014] In this embodiment, hydraulic oil is supplied to the piston 51 of the tool holder 50. In addition to the coupler 60 and hose 64 for A coupler and a hose are provided for supplying hydraulic oil to the center rod 56 of 0. Ru. Also, the inside of the two couplers and the joint between the coupler in the tool holder 50 Although not shown, each has a built-in check valve. This allows the coupler and two When the tool holder 50 is not connected, hydraulic oil leaks from the coupler and tool holder 50. It is designed not to.

[0015] In addition to controlling the supply of hydraulic oil, the operation of each part of the machine body 10, the table 20, and the movement of the tool magazine 30, rotation of the face plate 40, indexing, and movement of the face cutting slide 43. The movements are performed by commands from a numerical control device (not shown).

[0016] Next, the operation of the automatic tool changer using the face plate configured as described above will be explained. When the predetermined machining is completed, the face plate 40 is rotated and indexed to a reference angle, and the face plate 40 is rotated and indexed to a reference angle. The slide 43 is moved to one side in the radial direction of the face plate. As a result, the tool holder 50 is positioned at a predetermined position and becomes connected to the coupler 60 (state shown in FIG. 2).

[0017] After the tool holder 50 and coupler 60 are joined, first Hydraulic oil is supplied to the sensor through a hose, coupler (not shown) and port 56a. Move the tarod 56 to the left in the figure. As a result, the groove inside the taper part of the tool T The ball 54 that was fitted in the ball 57a enters the relief groove 57 at the tip of the center rod 56. and release the connection between the rod 53 and the tool T. Subsequently, a hose 64, a coupler 60 and a port 51a are connected to the end of the piston 51. to supply hydraulic oil, and move the piston 56 and rod 52 to the left in the figure. this As a result, the protrusion 55 pushes the tapered end of the tool T, and the tool T is moved away from the tool holder 50. (Figure 3).

[0018] Almost simultaneously with the operation of removing the tool T from the tool holder 50, or before this, The column 12 is in the Z-axis direction, the spindle head 13 is in the Y-axis direction, and the tool magazine 30 is in the X-axis direction. The movement of the tool holder 50 and tool magazine 30 is controlled, and tools can be exchanged. positioned in the state. Therefore, the tool T removed from the tool holder 50 is stored in the tool magazine 30. will be paid. Next, the column 12, spindle head 13, and tool magazine 30 are moved to Z, Y, and The tool T to be used in the next machining is inserted into the tool holder 50 by controlling its movement in the axial direction.

[0019] After that, when the hydraulic oil supply to the center rod 56 is stopped, the center rod 56 Pushed by the coil spring 58, it moves to the right in the figure, and the ball 54 is placed in the groove 57a of the tool T. Make it fit. Next, when the supply of hydraulic oil to the piston 51 is stopped, the piston 51 The rod 53 is pushed by the disc spring 52 and moves to the right in the figure, and the tool T is placed in the tool holder. 50 and tighten firmly. In this way, the tool holder 5 0, move the facing slide 43 and attach the coupler and tool. The state in which the connection with the holder 50 is released and normal rotational processing using the face plate 40 can be performed. (state in Figure 4).

[0020] As described above, tools can be automatically exchanged for tool holders fixed to the face plate. Do it properly. Note that the present invention is not limited to the above-mentioned embodiments, and may be modified within the scope of the gist. This includes various modifications.

[0021]

[Effect of the idea]

As described above, according to the automatic tool changer for the face plate of the present invention, when the tool is attached to the face plate, Since tools can be automatically replaced, various machining operations can be performed using the face plate. , even if it involves face milling, large-diameter boring, etc., automation and unmanned It has the effect of being able to aim for.

[Brief explanation of drawings]

FIG. 1 is a front view of the present apparatus used in a horizontal machining center.

FIG. 2 is a sectional view of a main part showing a state in which a tool holder and a coupler are joined for tool exchange.

FIG. 3 is a sectional view of a main part showing a state in which the tool is removed from the tool holder.

FIG. 4 is a sectional view of a main part showing a state in which the tool holder and the coupler are uncoupled and processing can be performed using the face plate.

[Explanation of symbols]

10...Machine body 13...Spindle head 30...Tool magazine 40...face plate 41...Face plate body 43... Face milling slide 50...Tool holder 51...Piston 52... Disc spring 53...Rod 54...Ball 56...Center rod 57...Groove 58...Coil spring 60...Coupler

Claims (1)

[Scope of utility model registration request] Claim 1: A face plate removably attached to the main shaft of a horizontal machining center, a tool holder fixed to a radially movable facing slide of the face plate, and a face plate main body fixed to the main spindle head. When the tool holder is fixed and is positioned at a predetermined position by the movement of the facing slide, the coupler is connected to the tool holder, and the tool holder is positioned at the predetermined position by the movement of the facing slide. When the tool magazine facing the tool holder and the tool holder are connected to the coupler, and when exchanging tools between the tool magazine and the tool magazine, hydraulic oil is supplied to the tool holder via the coupler. An automatic tool changer in a face plate, characterized by comprising: a control unit for performing the following operations.