JP3193709U - Auxiliary tools for operation tools - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary tool for an operation tool capable of easily improving workability. SOLUTION: For an operation tool that assists the operation of an operation tool 5 attached to an operation portion of a tool body including an operation portion for operating a member urged by the elastic member while pushing the member against the elastic force of the elastic member. The auxiliary tool 30 includes a main body 32 having an insertion hole 31 that can be inserted through the operation tool 5, and the main body 32 is movable in a direction orthogonal to the axis of the insertion hole 31 and has an insertion hole 31. It is provided with an operating tool fixing means 35 for contacting and fixing the operating tool 5 inserted into the tool body, and a magnetic body 38 for attracting the main body 32 to the tool body by magnetic force. [Selection diagram] Fig. 2

Description

  The present invention relates to an auxiliary tool for an operation tool used for an operation tool used for tightening and loosening operations, and particularly, an operation used when a tool unit is attached to and detached from a rotating tool holder attached to a turret of a turret lathe. The present invention relates to an operation tool auxiliary tool used for a tool.

  A plurality of types of cutting tool units are attached to a turret of the turret lathe via a rotary tool holder. A necessary tool unit is selected from the plurality of tool units according to the shape of the workpiece, the workpiece is machined, and the tool unit is replaced by changing the workpiece.

  In general, the replacement of the tool unit is performed manually, but an apparatus that automatically replaces the tool unit is already known (see Patent Document 1).

  As shown in FIG. 5B, when the tool unit 2 is manually replaced, an operation tool 5 such as a hexagon wrench is used. As shown in FIG. 5A, the rotary tool holder 10A includes a camshaft 15 that operates a cam 14 that clamps and unclamps the tool unit 2 by moving the draw bar 12 in the axial direction, and the camshaft 15 As shown in FIG. 5 (b), the operation tool 5 is fitted into the hexagon hole 18 formed in the hexagon driver 17, and the tool unit is exchanged. This is done by rotating the camshaft 15 by rotating the tool 5 while pushing the tool 5 against the urging force of the spring 19.

JP-A-6-238539

  Thus, in manual replacement of the tool unit, it is necessary to press the tip of the operating tool against the hexagonal hole and perform a rotating operation while pushing the operating tool, so it is ideal to perform the pushing and rotating operations with separate hands. . However, since it is also necessary to hold the tool unit, work including changing the operating tool with both hands is necessary, and workability is poor.

  Therefore, an object of the present invention is to provide an operation tool auxiliary tool that can easily improve workability and can be stably operated with one hand.

  In order to solve the above problems, the operating tool auxiliary tool (30) according to claim 1 pushes the member (17) biased by the elastic member (19) against the elastic force of the elastic member. An operation tool assisting tool for assisting the operation of the operation tool (5) attached to the operation unit of the rotary tool holder body (21) including the operation unit (20) operated while the operation tool is penetrated. A main body (32) having an insertable insertion hole (31) is provided, and the main body is movable in a direction perpendicular to the axis of the insertion hole and is brought into contact with the operation tool inserted into the insertion hole. And an operating tool fixing means (35) for fixing the rotating tool holder and a magnetic body (38) for attracting the main body to the rotary tool holder main body by magnetic force.

  Further, the operation tool auxiliary tool according to claim 2 is the operation tool auxiliary tool according to claim 1, wherein at least a nonmagnetic cover member interposed between the magnetic body and the rotary tool holder body is provided. And the suction force of the main body with respect to the rotary tool holder main body is adjusted by the thickness and gap of the cover member.

  Further, the operation tool assisting tool according to claim 3 is the operation tool assisting tool according to claim 1 or 2, wherein a plurality of the operation tool fixing means are radially arranged outside the insertion hole. It is characterized by that.

  According to the present invention, since it is not necessary to perform the operation of pushing the operating tool and the rotating operation at the same time, the operation can be easily and surely performed with one hand, and the operability can be improved.

It is a schematic diagram for demonstrating the structure of a rotary tool holder, Fig.1 (a) is a figure for demonstrating the structure inside a rotary tool holder, FIG.1 (b) is an external view of a rotary tool holder. It is a schematic diagram which shows the structure of the auxiliary tool for operation tools, Fig.2 (a) is an internal block diagram in planar view, FIG.2 (b) is an internal block diagram in front view. It is a schematic diagram which shows the attachment state of the auxiliary tool for operation tools. It is a schematic diagram which shows the use condition of the operation tool auxiliary tool. It is a schematic diagram for demonstrating the conventional tool unit exchange work, Fig.5 (a) is a schematic diagram for demonstrating the internal structure of a rotary tool holder, FIG.5 (b) is a model which shows the operation state of a tool. FIG.

  The best mode for carrying out the invention will be described below with reference to the drawings.

  Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. In the following description of the rotary tool holder 10, for the sake of convenience, the left and right directions shown in FIG. 1A will be described as the front and rear direction of the rotary tool holder, and the up and down directions will be described as the vertical direction of the rotary tool holder.

  As shown in FIG. 4, the operation tool assisting tool (hereinafter referred to as “tool assisting tool 30”) of the present embodiment detaches the tool unit 2 from, for example, a rotary tool holder 10 attached to a turret of a turret lathe. It is used for the operation tool 5 used when performing. Since the turret lathe is conventionally known, detailed description thereof will be omitted. Moreover, although the commercially available hexagon wrench is mentioned as an example in this embodiment as the operation tool 5, the torque wrench etc. which have a hexagon head may be used. The shape is appropriately changed according to the shape of the operation unit 20 described later.

  A plurality of rotating tool holders 10 are arranged around the turret (not shown). Each rotary tool holder 10 is attached with a tool unit 2 selected according to a workpiece to be cut from a plurality of types of tool units 2 functioning as a cutting tool.

  As shown in FIG. 1, the rotary tool holder 10 includes a rotary tool holder main body 21 that is partially formed in an annular shape, and a main shaft 22 that is rotatable via a bearing is provided therein. The rear end of the main shaft 22 is connected to the turret rotation drive unit, and the front end is connected to the tool unit 2 via the draw bar 12, and the driving force of the rotation drive unit is transmitted to the tool unit 2 to be driven to rotate.

  At the front end of the main shaft 22, a cam 14, a draw bar 12 disposed through the cam 14, and a cam shaft 15 that rotates the cam 14 around an axis orthogonal to the axis of the main shaft 22 are provided. The tool unit 2 is clamped or unclamped on the distal end side of the main shaft 22 by rotating the cam 14 and moving the draw bar 12 in the axial direction of the main shaft 22 by rotating the cam shaft 15.

  A through hole 23 is formed in the rotary tool holder main body 21 from the peripheral surface toward one end side of the cam shaft 15, and an operation portion 20 for rotating the cam shaft 15 is provided in the through hole 23. ing.

  The operation unit 20 includes a hex driver 17 having a moving shaft 17a that can reciprocate in the axial direction of the through hole 23, a spring 19 that urges the hex driver 17 toward the outer peripheral surface of the rotary tool holder body 21, and It has. The hexagonal screwdriver 17 has an upper outer peripheral surface of the moving shaft 17 a formed in a hexagonal shape, and is fitted into a hexagonal hole 15 a formed in the lower end surface of the camshaft 15. Further, a hexagonal hole 18 is formed in the lower end surface of the hexagonal screwdriver 17 and is fitted to the tip of the operation tool 5 such as a hexagonal wrench.

  The hexagonal screwdriver 17 is pushed into the rotary tool holder main body 21 by the operation tool 5, and the tip portion thereof is fitted into the hexagonal hole 15 a of the camshaft 15. When the force applied to the hex driver 17 by the operating tool 5 is removed, the hex driver 17 is moved to the original position by the restoring force of the spring 19 and is separated from the camshaft 15. As a result, the main shaft 22 can rotate.

  Next, as shown in FIGS. 2 and 3, the tool auxiliary tool 30 of the present embodiment includes a main body 32 having an insertion hole 31 that can be inserted through the distal end side of the operation tool 5. Attached to the optimal position on the way.

  The insertion hole 31 is appropriately designed depending on the size of the operation tool 5 to be used, and is formed larger than the shaft diameter of the operation tool 5, for example, and the shape thereof is not particularly limited. It is formed in a circular shape or a polygonal shape.

  The main body 32 includes a housing 40 (a cover member of the present application) having a space inside, and is formed of a nonmagnetic material such as resin. A tool that is movable in the center direction of the insertion hole 31 in the space of the housing 40 and that is fixed to the operation tool 5 by being brought into contact with the peripheral surface of the operation tool 5 inserted into the insertion hole 31. The fixing device 35 and the magnetic body 38 that attracts the main body 32 to the peripheral surface of the rotary tool holder main body 21 by magnetic force are accommodated.

  For example, three tool fixing devices 35 are provided radially around the outside of the insertion hole 31. The tool fixing device 35 is a columnar fixing member that is inserted into a through hole 41 that is formed in a direction perpendicular to the axis of the insertion hole 31 from the periphery of the housing 40 toward the center. 42 is provided. Although not shown, male and female screws are formed on the inner peripheral surface of the through-hole 41 and the outer peripheral surface of the fixing member 42, respectively, and the fixing member 42 is held by screwing, and the inside of the through-hole 41 extends along the axis. It is movable.

  An engaging portion (for example, a hexagonal hole) that can be engaged with a tool (hexagon wrench) for rotating the fixing member 42 is formed on the outer end surface of the fixing member 42, and is rotated by a predetermined tool. Thus, the fixing member 42 can be reciprocated.

  Then, the tool fixing device 35 according to the present embodiment causes the distal end portion of the fixing member 42 to enter the inside of the insertion hole 31 by rotating operation with the tool, and contacts the peripheral surface of the operation tool 5 inserted into the insertion hole 31. As a result, the operation tool 5 is held between the plurality of fixing members 42, and the tool auxiliary tool 30 is fixed to the operation tool 5.

  The magnetic body 38 is formed in an annular shape and is fixed to the lower end portion of the main body 32 by adhesion or the like. With this magnetic body 38, the tool auxiliary tool 30 is attracted to the rotary tool holder main body 21 when the operation tool 5 is fitted to the hexagon driver 17 and pushed to the operation position.

  When the suction force is weak, the tool auxiliary tool 30 is easily detached from the rotary tool holder main body 21, and when the suction force is strong, the tool auxiliary tool 30 is removed from the rotary tool holder main body 21. It is strongly sucked and difficult to remove, affecting operability.

  Therefore, in this embodiment, by changing the thickness of the lower end wall 46 of the housing 40, the gap G between the magnetic body 38 and the rotary tool holder main body 21 shown in FIG. 4 is adjusted, and the attractive force is adjusted. That is, the thickness of the lower end wall 46 of the housing 40 is adjusted as appropriate according to the strength of the magnetic force of the magnetic body 38. For example, this thickness requires at least a suction force larger than the biasing force of the spring 19. As described above, the magnetic field is set in consideration of the strength of the magnetic force. Alternatively, the suction force can be adjusted by fixing the gap G so that the gap G becomes larger.

  Further, this suction force is preferably adjusted so that the main body 32 of the tool auxiliary tool 30 does not separate from the rotary tool holder main body 21 while the operation tool 5 is being operated in order to improve the operability. . When the suction force is weak, the main body 32 is easily detached from the rotary tool holder main body 21 and the operability is deteriorated. When the suction force is strong, the operation tool 5 is attached to the rotary tool holder after the tool unit 2 is replaced. This is because it is difficult to come off the main body 21 and the operability is deteriorated.

  Next, a method for attaching and detaching the tool unit will be described with reference to FIGS.

  The attachment / detachment of the tool unit 2 is first performed using the operation tool 5 to which the tool auxiliary tool 30 is fixed after the tool auxiliary tool 30 is fixed to the operation tool 5.

(Method for fixing the tool auxiliary tool 30 to the operation tool 5)
First, as shown in FIGS. 2 and 3, the tip of the operation tool 5 is inserted into the insertion hole 31 of the tool auxiliary tool 30 as shown in FIG. In the state of being fitted and pushed into the hexagonal hole 18, the fixing member 42 of the tool fixing device 35 of the tool auxiliary tool 30 is held in contact with the peripheral surface of the operation tool 5, and the tool auxiliary tool 30 with respect to the operation tool 5 is held. Position and fix.

  As described above, if the tool auxiliary tool 30 is positioned and attached to the operation tool 5 in advance, the subsequent operation of attaching / detaching the tool unit 2 using the operation tool 5 requires the operation tool 5 to which the tool auxiliary tool 30 is attached. The tool unit 2 can be easily attached and detached by using the dedicated tool.

  When the tool auxiliary tool 30 is removed from the operation tool 5, the fixing member 42 holding the operation tool 5 may be separated from the operation tool 5 and the operation tool 5 may be pulled out from the insertion hole 31.

(How to attach / detach the tool unit 2)
Next, using the dedicated tool described above, as shown in FIG. 4, the tip of the operation tool 5 is fitted into the hexagonal hole 18 of the hexagonal screwdriver 17 and pushed in, so that the main body 32 of the tool auxiliary tool 30 is magnetically applied. Is sucked into the rotary tool holder main body 21.

  Next, the camshaft 15 is rotated by rotating the operation tool 5. By this rotation operation, the cam 14 is rotated, the draw bar 12 is moved in the axial direction, the tool unit 2 is clamped and unclamped, and the tool unit 2 is attached and detached.

  As described above, the tool auxiliary tool 30 according to the present embodiment is used while being fixed at an optimal position in the middle of the operation tool 5, and the operation tool 5 is fitted into the hexagon hole 18 of the hexagon driver 17 and pushed in. Thereafter, the tool auxiliary tool 30 is attracted to the rotary tool holder main body 21 by the action of the magnetic body 38, so that the operation tool 5 does not float from the rotary tool holder main body 21, that is, the hexagonal screwdriver 17 is connected to the hexagon hole Since the tightly fitted state is maintained without floating from 15a, the operator can perform the attaching / detaching work of the tool unit 2 by only rotating the operation tool 5 with one hand, and the workability is greatly improved. To be improved.

  In addition, by positioning the tool auxiliary tool 30 in advance and fixing it to the operation tool 5, it is easy to operate the tool with one hand without adjusting the mounting position of the tool auxiliary tool 30 when performing the same work. In addition, the tool unit 2 can be attached and detached.

  The position where the tool auxiliary tool 30 is fixed to the operating tool 5 is the optimum position when the tool auxiliary tool 30 is in contact with the rotary tool holder 10, so that the tool auxiliary tool 30 can be fixed as it is when the tool unit 2 is exchanged. is there.

  When the suction force is too strong depending on the operation tool 5, the suction force that the operator feels appropriate can be adjusted by adjusting the gap between the tool auxiliary tool 30 and the rotary tool holder 10.

  Moreover, the reproduction method of a clearance gap is provided as an optimal clearance gap by inserting the detachable spacer between the tool assistance tool 30 and the rotary tool holder 10, and fixing the tool assistance tool 30, for example.

  In addition, a nonmagnetic support member is interposed between at least the magnetic body 38 and the rotary tool holder main body 21, and the magnetic force of the magnetic body 38 and the thickness of the cover member are set, thereby assisting the tool in the rotary tool holder main body 21. By adjusting the suction force of the tool 30, the operation tool 5 can be easily rotated, and the tool auxiliary tool 30 after the rotation operation by the operation tool 5 can be easily removed, so that the operability can be further improved.

  Note that this embodiment can be changed within the scope of the idea of the invention. For example, in the present embodiment, the housing 40 is formed of a non-magnetic material, but only the wall body 46 that contacts the rotary tool holder main body 21 may be a non-magnetic material, and the material thereof is particularly limited. It is not something.

  Further, as shown in FIG. 1, the tool auxiliary tool 30 of the present embodiment is provided in the operation unit 20 used when exchanging the tool unit 2 for cutting that is detachably attached to the turret base in the turret lathe. The rotary tool holder 10 for a turret lathe is an example of a device having an operation unit 20 and is urged by an elastic member (for example, a spring 19). The present invention can be appropriately applied to an apparatus including an operation unit that operates a member (for example, the hexagonal screwdriver 17) while pushing it against an elastic force.

5 Operation tool 19 Spring 20 Operation unit 21 Rotating tool holder body 30 Tool auxiliary tool 31 Insertion hole 32 Body 35 Tool fixing device 38 Magnetic body

Claims (3)

An operation tool auxiliary tool for assisting operation of an operation tool attached to the operation portion of the rotary tool holder main body including an operation portion that operates while pushing a member biased by the elastic member against the elastic force of the elastic member Because
A main body having an insertion hole through which the operation tool can be inserted;
The body is
An operation tool fixing means that is movable in a direction perpendicular to the axis of the insertion hole and is fixed in contact with the operation tool inserted into the insertion hole;
A magnetic body for attracting the main body to the rotary tool holder main body by a magnetic force;
An auxiliary tool for an operation tool, comprising:   A nonmagnetic member cover member interposed between at least the magnetic member and the rotary tool holder main body is provided, and the attraction force of the main body with respect to the rotary tool holder main body is adjusted by the thickness and gap of the cover member. The operation tool auxiliary tool according to claim 1.   The operation tool auxiliary tool according to claim 1 or 2, wherein a plurality of the operation tool fixing means are radially arranged outside the insertion hole.

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