JP4911713B2 - Module coupled to tool holder - Google Patents

Description

The present invention relates to a module coupled to a tool holder, and more particularly to a module coupled to a tool holder for increasing processing stability.

Currently, high precision metal processing such as drilling, drilling, boring, milling, inner / outer diameter cutting or surface polishing, etc. uses a computer numerical control (CNC) processing stage to assemble a wide variety of cutting tools and tools. Processing is performed together. The blades and tools all have a bar-like structure, and when the holder or the holder structure is connected to the drive shaft of the CNC machining stage, the drive shaft rotates at a high speed so that the blades and tools sandwiched between the holder and the tool are held. Move to process the object.

In addition, the conventional one such as the “separable blade holder head” of the Chinese Patent Publication No. M253434 mainly has a conical hole whose one end extends inward along the shaft, and the conical hole is a knife bar. A knife bar having a shape that gradually decreases inward from the outer periphery thereof, a conical portion at one end, a fitting portion at the other end, an inclination angle of the outer peripheral surface of the conical portion, and a cone of the knife bar The angle of inclination of the hole is the same, the conical part is provided in the conical hole of the knife bar, the fitting part has a center hole, and a holder member for firmly holding the blades by a heating method, and the outside of the holder member And a fixing member that is screwed into the knife bar and locks the holder member to the knife bar. An object of the present prior art is to provide a holder head for a detachable blade tool having a function of combining blades of different standard sizes that can be exchanged with a single knife bar body. However, the present prior art still has a problem that needs to be substantially improved. That is, the prior art further includes a fixing member fitted into the holder member and screwed into the bottom of the knife bar. In addition, although the binding force of the knife bar is strengthened, the fixing member must be rotated during assembly or disassembly, resulting in inconvenience in use.

  The main object of the present invention is to increase the processing stability, when processing the target metal using the processing stage, when processing the target metal by strengthening the coupling force and concentricity of the base and knife bar. This is to prevent damage to the processing blades and tools due to the loss of accuracy.

  In order to achieve the above object, the present invention provides a hollow base and a knife bar joined together to form an overall structure, a coupling head is attached to the front end of the base, and the coupling head covers the inside of the knife bar. A module coupled to a tool holder is provided.

When the coupling head is covered inside the knife bar, the overall structure of the present invention is further stabilized, and the pedestal and the knife bar are arranged concentrically, and if the length of the knife bar is too long, Due to insufficient coupling force or poor concentricity between the pedestal and the knife bar, the machining size accuracy is affected by vibration during machining, and the blades loosen and fall off or tear, reducing the useful life of the knife bar. While providing an interface that combines a variety of different standard pedestals and knife bars with each other.

Detailed description and technical contents of the present invention will be described later in conjunction with the drawings.

1 and 2 are a three-dimensional exploded view and a cross-sectional schematic view of a module coupled to the tool holder of the present invention. As shown in the figure, the present invention is used to connect a processing stage (not shown) to a processing tool or tool (not shown), and is connected to a drive shaft (not shown) of the processing stage. It is clearly found that the object (not shown) is machined by driving the drive shaft and rotating the tools and tools held by the tool holder at high speed. The module coupled to the tool holder of the present invention forms a main structure by joining the pedestal 10 and the knife bar 30 to each other, and a coupling head 20 having a columnar shape is attached to the coupling portion of the pedestal 10 and the knife bar 30, The coupling head 20 is installed in the first storage space 11 of the pedestal 10 and is covered with the knife bar 30, and the pedestal 10 is tightly joined to the coupling head 20 at the corresponding first joining portions 22 and 22 ′. In addition, when the knives bar 30 is tightly joined at the corresponding second joints 12 and 12 ′ and the pedestal 10, the coupling head 20, and the knife bar 30 are coupled, the contact surfaces 13 and 14 to be coupled are combined. , 15 and 16 are in close contact with each other, and the coupling head 20 is covered in the knife bar 30 to further stabilize the overall structure of the present invention. If the pedestal 10 and the knife bar 30 are arranged so as to be concentric with each other and the length of the knife bar 30 is too long, the pedestal 10 and the pedestal 10 are not sufficiently connected to each other due to insufficient coupling force or concentricity of the second joints 12 and 12 ' It is possible to prevent the phenomenon that the knife bar 30 is loosened and comes off or the accuracy of the processing blades is lowered.

In addition, the coupling head 20 is provided with a contact hole 21, and the contact hole 21 is inserted into a suitable machine (not shown) aligned with the peripheral edge of the contact hole 21, and the machine is It is firmly in contact with the contact hole 21 and is attached to the first storage space 11 of the base 10 with the aid of the coupling head 20. The first joints 22 and 22 'and the second joints 12 and 12' are respectively screwed with the corresponding threads, and at least one bolt hole 60 is provided in the second joints 12 and 12 '. The bolt holes 60 are screwed with corresponding bolts 61 to reinforce the joint adhesion between the pedestal 10 and the knife bar 30. The pedestal 10, the coupling head 20, and the knife bar 30 are all hollow, and an attachment channel 31 is formed therein to insert and attach tools and tools, and the inserted tools and tools are attached to the attachment channel 31. The module coupled to the tool holder can be adjusted to an appropriate length and exposed by being inserted deep inside.

3 and 4 are a three-dimensional exploded view and a cross-sectional schematic view of a first optimal embodiment of the module coupled to the tool holder of the present invention. As shown in the figure, the greatest difference between the present embodiment is that the base 10a and the coupling head 20a of the present embodiment are integrally molded, and thus the time for housing the coupling head 20a in the base 10a can be saved. The pedestal 10a is tightly coupled to the knife bar 30a directly by the second joints 12 and 12a 'so that the coupling head 20a is covered inside to form a stable structure. It is clearly understood that there is to insert and attach a tool.

5 and 6 are three-dimensional exploded and cross-sectional schematic views of a second optimal embodiment of the module coupled to the tool holder of the present invention. As shown in the figure, in this embodiment, the knife bar 30 further includes an embodiment including a stretching bar 40, a holder 50, and a nut 70. The pedestal 10 is tightly joined to the coupling head 20 at the first joints 22 and 22 ′, and is separately tightly joined to one end of the stretching bar 40 at the second joints 12 and 12 ′. The coupling head 20 is covered inside. The holder 50 is housed in a second housing space 73 of the nut 70, and the ring groove 52 of the holder 50 and the ring fixing member 72 of the nut 70 are combined and coupled to each other. Strengthen the clamping force of the tool. The holder 50 is provided with a plurality of claw structures 51 separately, and the claw structures 51 are arranged in a ring shape with a space therebetween to form a conical structure. The other end of the stretching bar 40 is tightly joined to the nut 70 at the third joint portions 41 and 41 ′, and is firmly combined with the holder 50 to fix the stretching bar 40 between the base 10 and the nut 70. Install.

The third joint portions 41 and 41 ′ are screwed with corresponding screw threads to have at least one bolt hole 60, and the bolt hole 60 is screwed with the corresponding bolt 61, and the extension bar 40 and the nut. Strengthens the degree of adhesion that 70 joins together. The centers of the pedestal 10, the coupling head 20, the extension bar 40, the holder 50 and the nut 70 are all hollow, and are coupled to form a mounting channel 71 to insert and attach tools and tools. Then, the blades and tools that are stored and inserted and attached can be deeply inserted into the attachment channel 71, and the module coupled to the tool holder can be adjusted to an appropriate length to be exposed, and the holder 50 can be exposed. The conical structure formed by the claw structure 51 of the holder 50 can be fixed so that the holder 50 has a certain elasticity. When a cutter or a tool of a different standard is inserted and attached, the claw structure 51 has an inner diameter. When the holder 50 and the extension bar 40 are connected and the nut 70 and the extension bar 40 are joined, the claw Concrete 51 can be prevented from escaping loose when the cutlery or tools across firmly the cutlery or tools narrowed inward naturally is processed at high speed. Since the cutters and tools are firmly held by the holder 50 and only a small portion is exposed to the outside, the influence of the force applied from the outside is reduced, and the processing accuracy of the cutters and tools on the target object is reduced. Significant increase.

What has been described above is merely an optimum embodiment of the present invention, and does not limit the scope of the present invention. Accordingly, all equivalent changes or corrections made within the scope of the patent application according to the present invention shall be equally included in the scope of the patent of the present invention.

It is a three-dimensional exploded schematic view of a module coupled to the tool holder of the present invention. FIG. 3 is a schematic cross-sectional view of a module coupled to the tool holder of the present invention. FIG. 2 is a schematic exploded view of a first optimal embodiment of a module coupled to the tool holder of the present invention. 1 is a schematic cross-sectional view of a first optimal embodiment of a module coupled to a tool holder of the present invention. FIG. 3 is a schematic exploded view of a second optimal embodiment of a module coupled to the tool holder of the present invention. FIG. 4 is a cross-sectional schematic view of a second optimal embodiment of a module coupled to the tool holder of the present invention.

Explanation of symbols

10 pedestal
11 First storage space 12, 12 ′ Second joint 13, 14, 15, 16 Contact surface 20 Joining head 21 Contact hole 22, 22 ′ First joint 30 Knife bar 31 Attachment channel 40 Stretch bar 41, 41 ′ Three joints 50 Holder 51 Claw structure 52 Ring groove 60 Bolt hole 61 Bolt 70 Nut 71 Mounting channel 72 Ring fixing member 73 Second storage space

Claims (1)

A module which is fixed to a tool holder used in processing, and is coupled to a tool holder which forms an overall structure by joining a hollow base (10) and a knife bar (30) to each other,
The knife bar (30) includes a stretching bar (40), a holder (50), and a nut (70),
The stretch bar (40) is tightly joined to the nut (70) at the corresponding third joint (41, 41 ′),
The holder (50) is stored in a second storage space (73) of the nut (70),
A coupling head (20) is attached to the front end of the pedestal (10) ,
The coupling head (20) and the stretching bar (40) are coupled to form a contact surface (15) ;
And the said base (10) and the said extending | stretching bar (40) couple | bond together, and form a contact surface (13) ,
A module coupled to a tool holder, wherein the pedestal (10) and one end of the stretching bar (40) are tightly joined, and the coupling head (20) is covered inside the stretching bar (40). .

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