Attachment / removal tool and treatment tool to which attachment / removal tool is attached

Abstract

Provided is an attachment / detachment tool that is detachably attached to a tool attachment hole of a tool holder having a tool attachment hole and a holder disposed so as to be capable of advancing and retracting toward the inside in the radial direction of the tool attachment hole, the attachment / detachment tool being provided with: a housing that is supported at a predetermined position in the tool attachment hole and that holds the holder in the radial direction of the tool attachment hole; the housing has: an elastic body chamber; and a holder insertion hole into which the holder is inserted. A slider on which a tip tool having a blade in a base end direction can be mounted, the slider being supported by the housing, reciprocating within the tool mounting hole, and having a guide groove extending along the tool mounting hole; an elastic body that is disposed in the elastic body chamber and that biases the slider in the base end direction; and a rotation stopper disposed in the housing and inserted into the guide groove.

Description

Technical Field

[0001] The invention relates to a handling tool and a processing tool equipped with the handling tool. Background Art

[0002] A processing tool has been proposed in which a tool holder can be attached and detached and the tool can be slid in the axial direction relative to a shank (Japanese Patent Application Laid-Open No. 2023-58946, hereinafter referred to as Patent Document 1).

[0003] In addition, a deburring tool having a floater, a column and an elastomer has been proposed (Japanese Utility Model Patent Gazette No. 3240218, hereinafter referred to as Patent Document 2). The floater is inserted into the float insertion hole and is used for back deburring. The floater has a guide groove, an elastomer chamber and an annular elastomer support. The column has a head and is arranged inside the elastomer chamber. The elastomer is arranged between the head and the elastomer support inside the elastomer chamber. The elastomer applies force to the floater in the base end direction.

[0004] When wanting to replace the float of patent document 2, it is necessary to utilize a tool to remove the front end tool and the column and assemble other floats. In addition, the float of patent document 2 cannot be replaced with a float that deburrs the surface. Summary of the invention

[0005] An object of the present invention is to provide a float for deburring the back surface which can be easily replaced with a float for deburring the surface.

[0006] A first aspect of the present invention is a loading and unloading tool that is detachably mounted on a tool mounting hole of a tool holder, the tool holder having the tool mounting hole and a retaining body that is arranged to be able to advance and retreat toward the radial inner side of the tool mounting hole, the loading and unloading tool having:

[0007] A housing, the housing being supported at a predetermined position of the tool mounting hole and having:

[0008] an elastomer chamber; and

[0009] A retaining body insertion hole, wherein the retaining body is inserted into the retaining body insertion hole;

[0010] a slider capable of being mounted with a front end tool having a blade in a base end direction, the slider being supported by the housing and reciprocating in the tool mounting hole and having a guide groove extending along the tool mounting hole;

[0011] an elastic body, the elastic body being arranged in the elastic body chamber and applying force to the sliding member in a base end direction; and

[0012] A rotation stopper is arranged on the housing and inserted into the guide groove.

[0013] A second aspect of the present invention is a processing tool having:

[0014] A tool support, the tool support having:

[0015] Tool mounting holes;

[0016] a holding body arranged to be able to move forward and backward toward the inside of the tool mounting hole; and

[0017] A push rod, the push rod is configured to move forward and backward in the tool mounting hole;

[0018] A sliding tool, which is detachably mounted on the tool mounting hole and has a sliding body,

[0019] The sliding body is provided with a first front end tool having a blade in the front end direction, is forced in the front end direction by the push rod, and reciprocates in the tool mounting hole, and has a first guide groove extending along the tool mounting hole and for inserting the retaining body on the outer peripheral surface of the sliding body; and

[0020] A loading and unloading tool is installed in the tool mounting hole instead of the sliding tool, and has:

[0021] A housing, the housing being supported at a predetermined position of the tool mounting hole and having:

[0022] an elastomer chamber; and

[0023] A retaining body insertion hole, wherein the retaining body is inserted into the retaining body insertion hole;

[0024] a slider capable of being mounted with a front end tool having a blade in a base end direction, the slider being supported by the housing, reciprocating in the tool mounting hole, and having a second guide groove extending along the tool mounting hole;

[0025] an elastic body, the elastic body being arranged in the elastic body chamber and applying force to the sliding member in a base end direction; and

[0026] A rotation stopper is disposed on the housing and inserted into the second guide groove.

[0027] The front end tool is, for example, a cutter, a brush, or a grinding tool. The front end tool can be integrally formed with the sliding member or the sliding body. The front end tool can also be fastened to the sliding member or the sliding body by shrink fit or collet clamping.

[0028] The retaining body insertion hole may be arranged on the outer peripheral surface of the housing.

[0029] The guide groove may be arranged from the front end portion to the middle portion of the rod.

[0030] The elastomeric chamber may extend along the tool mounting aperture.

[0031] The rod or the inner surface of the elastomer chamber may guide the elastomer.

[0032] The rod may be formed integrally with the sliding body. The rod may also have an external thread at the base end. The rod may also have an abutting cylindrical portion. The elastic support may also have an internal thread engaged with the external thread of the rod. The elastic support may also have a cylindrical inner surface abutting against the abutting cylindrical portion.

[0033] In addition, the rod may have an internal thread at the base end. The rod may have a cylindrical inner surface. The elastic support may have an external thread meshing with the internal thread of the rod. The elastic support may have a contact cylindrical portion contacting with the cylindrical inner surface of the rod.

[0034] The rod can also be formed integrally with the elastic body support. The rod can also be threadedly fastened to the sliding body. In this case, the sliding body and the rod can also have cylindrical surfaces that abut against each other.

[0035] In addition, the elastic body support member can also be connected to the rod or the sliding body in a detachable manner. For example, the elastic body support member is screwed to the rod. In this case, the elastic body support member and the rod can have cylindrical surfaces that abut each other.

[0036] The elastic body is, for example, a compression coil spring or a tension coil spring. The tension coil spring may be arranged between the base end of the elastic body chamber and the slider.

[0037] The slide may abut against the tool mounting hole.

[0038] In addition, the sliding member may also slide inside the housing. In this case, the housing may also have an elastomeric support column arranged in the center of the housing. The elastomeric support column may have an elastomeric support portion at the front end, for example. The sliding member may also have a skirt extending further toward the base end than the elastomeric support portion and an elastomeric support member arranged at the base end of the skirt. A compressible elastomer is arranged between the elastomeric support member and the elastomeric support portion. The elastomer is, for example, a compression coil spring.

[0039] According to the present invention, it is possible to provide a detachable tool for deburring the back surface that can be easily replaced with a float for deburring the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a longitudinal sectional view showing a state where the attachment and detachment tool according to the first embodiment is attached and detached from the tool holder.

[0041] Figure 2 This is an exploded view of the attachment and detachment tool according to the first embodiment.

[0042] Figure 3 It is the movement amount of the attachment and detachment tool in Embodiment 1 with respect to the rotation angle.

[0043] Figure 4 This is a longitudinal sectional view showing the method of using the processing tool according to the first embodiment.

[0044] Figure 5 This is a longitudinal sectional view showing a state where the slide tool according to the first embodiment is attached to and detached from the tool holder.

[0045] Figure 6 This is the sliding tool of embodiment 1.

[0046] Figure 7 It is a longitudinal sectional view showing the tool holder and the attachment and detachment tool according to the second embodiment.

[0047] Explanation of symbols

[0048] 20, 120 tool holder

[0049] 21c Tool mounting hole

[0050] 25 Ball (retaining body)

[0051] 30 Loading and unloading tools

[0052] 31 Shell

[0053] 33 Ball (anti-rotation body)

[0054] 36 Slide

[0055] 40 Guide slot

[0056] 39 Elastomer DETAILED DESCRIPTION

[0057] <Implementation Method 1>

[0058] like Figure 1 As shown, the processing tool 10 of this embodiment has a tool holder 20 and a handling tool 30. Here, Figure 1 The right half of shows the state where the trigger 23 is located at the processing position 3 and the loading and unloading tool 30 is installed. Figure 1 The left half of shows a state where the trigger 23 is located at the loading and unloading position 5 and the loading and unloading tool 30 is removed from the tool holder 20 . Figure 1 The handling tool 30 is a single side cross-sectional view.

[0059] The tool holder 20 includes a main body 21 , a trigger 23 , a ball (holding body) 25 , a push rod 27 , and a spring 29 .

[0060] The main body 21 has a handle 21a, a tool mounting hole 21c, a ball hole 21d, and a spring chamber 21f. The main body 21 is mounted on a spindle of a machine tool (not shown), for example, and rotates around the central axis 1. The handle 21a, the tool mounting hole 21c, and the spring chamber 21f are arranged along the central axis 1. The tool mounting hole 21c is arranged at the front end of the main body 21. The spring chamber 21f is connected to the tool mounting hole 21c. The ball hole 21d penetrates the main body 21 in the radial direction.

[0061] The ball 25 is inserted into the ball hole 21d.

[0062] The trigger 23 is hollow cylindrical and is disposed radially outside the main body 21. The trigger 23 has a pressing surface 23a and an escape portion 23b. The trigger 23 reciprocates between the processing position 3 and the loading and unloading position 5. When the trigger 23 is located at the processing position 3, the pressing surface 23a causes the ball 25 to protrude into the tool mounting hole 21c. When the trigger 23 is located at the loading and unloading position 5, the ball 25 is accommodated in the escape portion 23b.

[0063] The spring 29 is a compression coil spring. The spring 29 is disposed in the spring chamber 21f. The push rod 27 reciprocates inside the tool mounting hole 21c. The push rod 27 is urged toward the front end direction by the spring 29.

[0064] like Figure 1 as well as Figure 2 As shown, the handling tool 30 includes a housing 31, a ball (rotation stopper) 33, a ball ring 35, a slider 36, and a spring (elastic body) 39. The components constituting the handling tool 30 are all arranged around the central axis 1.

[0065] The housing 31 has a housing body 31a, a small barrel 31b, a retaining body insertion hole 31c, a ball retaining hole 31d, a spring chamber (elastic body chamber) 31f and a rod hole 31h. The housing 31 is hollow cylindrical. The outer cylinder surface of the housing body 31a abuts against the tool mounting hole 21c. The small barrel 31b extends from the front end of the housing body 31a. The retaining body insertion hole 31c is arranged on the outer cylinder surface of the housing body 31a. The retaining body insertion hole 31c is hemispherical and has substantially the same diameter as the ball 25. The retaining body insertion hole 31c abuts against the ball 25. The spring chamber 31f is cylindrical and opens at the base end of the housing body 31a. The spring chamber 31f may also have a large diameter portion 31f1 and a small diameter portion 31f2. The small diameter portion 31f2 is arranged in the front end direction of the large diameter portion 31f1. The rod hole 31h extends from the front end of the housing 31 along the central axis 1. The rod hole 31h is connected to the spring chamber 31f.

[0066] The ball 33 is inserted into the ball holding hole 31d. The ball ring 35 is disposed in the small cylinder portion 31b and holds the ball 33.

[0067] The slider 36 has a slide body 37 , a rod 38 , a guide groove 40 , and a spring support (elastic body support) 41 .

[0068] The sliding body 37 is in the shape of a straight cylinder. The sliding body 37 has a sliding surface 37a and a tool hole 37b. The sliding surface 37a slides in the tool mounting hole 21c. The tool hole 37b is arranged at the front end of the sliding body 37.

[0069] The rod 38 is disposed at the base end of the sliding body 37. The rod 38 is in the shape of a straight cylinder. The rod 38 has a sliding shaft 38a, a contact cylindrical portion 38b, and an external thread 38c.

[0070] A plurality of (two in this embodiment) guide grooves 40 are formed on the slide shaft 38a in rotational symmetry about the central axis 1. The guide groove 40 extends in a spiral shape about the central axis 1. The guide groove 40 has a lead angle α.

[0071] Alternatively, the guide groove 40 may extend linearly along the central axis 1 .

[0072] The spring support 41 is connected to the base end of the rod 38. The spring support 41 includes a support portion 41a, a shaft portion 41b, an inner cylinder portion 41d, and an inner thread 41c. The diameter of the support portion 41a is larger than the outer diameter of the spring 39. Preferably, the support portion 41a slides in the large diameter portion 31f1 of the spring chamber 31f. The outer diameter of the shaft portion 41b is smaller than the inner diameter of the spring 39. The outer diameter of the shaft portion 41b is substantially equal to the outer diameter of the sliding shaft 38a. The inner cylinder portion 41d abuts against the abutting cylindrical portion 38b. The inner thread 41c is fastened to the outer thread 38c of the rod 38.

[0073] The slider 36 is guided by the ball 33 in the guide groove 40 and moves forward and backward in a spiral shape in the housing 31 along the direction of the central axis 1 .

[0074] The tip tool 43 has a shank 43a, a reduced diameter portion 43b, and a blade portion 43c. The blade portion 43c is supported by the shank 43a via the reduced diameter portion 43b. The blade portion 43c has a cutting edge in the base end direction. The shank 43a is fastened to the tool hole 37b.

[0075] The spring 39 is a compression coil spring. The spring 39 is inserted into the gap between the housing 31 and the rod 38. The spring 39 is supported by fastening the spring support 41 to the rod 38. The spring 39 is guided by the slide shaft 38a, the shaft portion 41b or the small diameter portion 31f2. The spring 39 urges the slide member 36 toward the base end direction.

[0076] Figure 3 : represents the relationship between the position of the sliding body 37 relative to the housing 31 and the rotation angle. The vertical axis represents the axial displacement h of the sliding body 37 (refer to Figure 1 ), the cutting direction 2 of the sliding body 37 (refer to Figure 1 ) is set to negative. The horizontal axis represents the angular displacement θ of the sliding body 37 (refer to Figure 1 ), the rotation direction of the processing tool 10 (towards Figure 1 The sliding body 37 rotates clockwise in the downward direction) is set to negative. Figure 3 The displacement h moves within the shaded region 45. In the region 45, the displacement h has a certain displacement width w with respect to any angular displacement θ.

[0077] Figure 4 The usage status of the processing tool 10 to which the attachment and detachment tool 30 is attached is shown. Figure 4 The right half of exemplifies a state where the slider 36 is located at the base end. Figure 4 The left half of exemplifies a state in which the slider 36 moves toward the front end direction to remove the burrs of the workpiece 7 .

[0078] The processing tool 10 rotates in the -θ direction. The slider 36 moves, and the blade 43c abuts against the edge of the back side of the workpiece 7 as viewed from the tool holder 20. The processing tool 10 moves in a direction perpendicular to the paper surface. The housing 31 is supported in a fixed position by the ball 25. The spring 29 is kept in a contracted state. The slider 36 is urged toward the base end by the elastic force of the spring 39. The slider 36 is guided by the guide groove 40. As the processing tool 10 moves, when the height of the edge of the workpiece 7 abutted by the blade 43c changes, the spring 39 expands and contracts, and the slider 36 slides in the tool mounting hole 21c. Here, the ball 33 and the guide groove 40 guide the slider 36. Since the guide groove 40 has a displacement width w and a lead angle α, the slider 36 advances and retreats according to the size of the cutting torque borne by the blade 43c.

[0079] like Figure 5 As shown, a sliding tool 50 can be installed on the tool holder 20 instead of the handling tool 30. Here, Figure 5 The right half of exemplifies a state in which the sliding tool 50 is mounted on the tool holder 20 and processes the workpiece 7 . Figure 5 The left half of exemplifies a state in which the sliding tool 50 is detached from the tool holder 20 .

[0080] like Figure 5 as well as Figure 6 As shown, the sliding tool 50 has a sliding body 51, a front end tool 53 and a guide groove 52. The sliding body 51 is a straight cylindrical shape, and slides with the tool mounting hole 21c in the rotation direction and the axial direction. The front end tool 53 is mounted on the sliding body 51. The front end tool 53 has a blade 53a. The blade 53a has a cutting edge in the front end direction. The sliding body 51 is urged toward the front end direction by the push rod 27. The cutting direction of the sliding tool 50 is toward 2 Figure 5 The downward direction.

[0081] like Figure 5As shown, the processing tool 10 rotates as a whole. Moreover, while the front end tool 53 is in contact with the workpiece 7, the processing tool 10 is moved in the vertical direction of the paper. Then, the burrs on the edge of the workpiece 7 on the tool holder 20 side, that is, the surface side of the workpiece 7, are removed. When the distance (height) between the workpiece 7 and the tool holder 20 changes, the entire sliding tool 50 reciprocates inside the tool mounting hole 21c in conjunction with the height of the workpiece 7 and the push rod 27. At this time, the ball 25 and the guide groove 52 guide the sliding body 51.

[0082] exist Figure 6 As viewed from above, the slide tool 50 is subjected to cutting resistance in the counterclockwise direction. The guide groove 52 as a whole moves in the opposite direction (+θ) to the rotation direction of the processing tool 10, and depicts a direction in the opposite direction of the cutting direction 2 (in Figure 6 The other structures of the guide groove 52 are substantially the same as the guide groove 40 of the handling tool 30. However, the ball 25 is inserted into the guide groove 52.

[0083] According to the processing tool 10 of this embodiment, the following effects are achieved.

[0084] When the handling tool 30 is mounted, the ball 25 holds the housing 31 in a fixed position, and the spring 29 does not substantially operate. In addition, the spring 39 disposed inside the handling tool 30 applies force to the sliding body 37 in the base end direction. The processing tool 10 can remove burrs on the back surface of the workpiece 7 when viewed from the tool holder 20. The handling tool 30 can be easily removed from the tool holder 20 simply by changing the position of the trigger 23 from the processing position 3 to the handling position 5.

[0085] Furthermore, when the slide tool 50 is mounted on the tool holder 20 instead of the attachment tool 30, the ball 25 is inserted into the guide groove 52, and the push rod 27 applies force to the slide tool 50 in the front end direction via the spring 29. When viewed from the tool holder 20, the processing tool 10 can remove burrs on the surface of the workpiece 7. According to the processing tool 10 of this embodiment, the process of deburring the surface and the process of deburring the back of the workpiece 7 can be easily switched by simply replacing the mounted tool.

[0086] The sliding body 37 abuts against the tool mounting hole 21c, so that the overall vibration of the sliding body 37 is suppressed.

[0087] In addition, the outer cylindrical surface of the housing 31 abuts against the tool mounting hole 21c. Therefore, the assembly accuracy of the attachment and detachment tool 30 is improved.

[0088] In addition, the support portion 41a, which is the rear end portion of the slider 36, slides toward the spring chamber 31f. Then, since the front end and the rear end portion of the slider 36 are guided by the tool mounting hole 21c, the overall vibration of the slider body 37 is further suppressed.

[0089] The spring chamber 31f is open at the rear end of the housing 31, and the spring support 41 is detachable from the rod 38. Therefore, by removing the spring support 41 from the rod 38, the spring 39 can be easily replaced. In addition, the strength of the contact between the blade 43c and the workpiece 7 is determined by the spring constant of the spring 39. According to this embodiment, the spring 39 can be easily changed to another spring 39 with a different spring constant. Thus, the deburring strength can be easily changed.

[0090] The sliding body 37 is arranged on the front end side of the housing 31. The sliding body 37 slides in the tool mounting hole 21c. The housing 31 is supported by being in contact with the tool mounting hole 21c. Moreover, a spring 39, a rod 38 connected to the sliding body 37, and a spring support 41 are accommodated inside the housing 31. Therefore, the loading and unloading tool 30 can be compactly constructed. In addition, the ball 33 is built into the housing 31. The guide groove 40 is arranged on the rod 38. Therefore, the loading and unloading tool 30 is more compactly constructed. Moreover, the overall shape of the portion of the loading and unloading tool 30 inserted into the tool mounting hole 21c becomes a simple straight cylindrical shape. Therefore, the shape of the sliding tool 50 also becomes a simple straight cylindrical shape.

[0091] <Implementation Method 2>

[0092] like Figure 7 As shown in FIG. 1 , the processing tool 100 of the present embodiment includes a tool holder 120 and a detaching tool 30 . Instead of the detaching tool 30 , the slide tool 50 can be mounted on the tool holder 120 .

[0093] The tool holder 120 includes a housing 161 , a main body 121 , a main bearing 162 , a main spindle motor 163 , a ball bearing 25 , and a trigger 23 .

[0094] The housing 161 is a hollow cylindrical shape. The housing 161 is installed on an industrial robot, for example. The main body 121 is supported on the housing 161 via a main bearing 162. The main body 121 is a main shaft. The main shaft motor 163 is arranged in the housing 161. The main shaft motor 163 has an output shaft 163a. ​​The output shaft 163a is connected to the main body 121, for example, by a sawtooth. The structure of the main body 121 is substantially the same as the main body 21 of the first embodiment.

Claims

1. A loading and unloading tool (30), characterized in that: The loading and unloading tool (30) is detachably mounted on a tool mounting hole (21c) of a tool holder (20, 120), the tool holder (20, 120) comprising the tool mounting hole (21c) and a retaining body (25) arranged to be able to move forward and backward toward the radial inner side of the tool mounting hole (21c), and the loading and unloading tool (30) comprises: A housing (31), the housing (31) being supported at a predetermined position of the tool mounting hole (21c) and having: an elastomer chamber (31f); and A retaining body insertion hole (31c), wherein the retaining body insertion hole (31c) is for the retaining body (25) to be inserted; a sliding member (36) capable of being mounted with a front end tool (43) having a blade in a base end direction, the sliding member (36) being supported by the housing (31) and reciprocating in the tool mounting hole (21c), and having a guide groove (40) extending along the tool mounting hole (21c); an elastic body (39), the elastic body (39) being arranged in the elastic body chamber (31f) and applying force to the sliding member (36) in a base end direction; as well as A rotation stopper (33) is arranged on the housing (31) and inserted into the guide groove (40).

2. The handling tool (30) according to claim 1, characterized in that: The sliding member (36) has a sliding body (37) which is arranged on the front end side of the housing (31) and slides in the tool mounting hole (21c).

3. The handling tool (30) according to claim 1 or 2, characterized in that: The housing (31) has a rod hole (31h) connected to the elastic body chamber (31f). The sliding member (36) has: a rod (38), the rod (38) passing through the rod hole (31h); and an elastic body support (41), the elastic body support (41) being arranged inside the elastic body chamber (31f) and connected to the base end portion of the rod (38), The elastic body (39) is arranged between the housing (31) and the elastic body support (41).

4. The handling tool (30) according to any one of claims 1 to 3, characterized in that: The rod (38) has the guide groove (40).

5. The handling tool (30) according to any one of claims 1 to 4, characterized in that: The housing (31) abuts against the inner surface of the tool mounting hole (21c).

6. The handling tool (30) according to any one of claims 1 to 5, characterized in that: The elastic body support member (41) slides inside the elastic body chamber (31f).

7. The handling tool (30) according to any one of claims 1 to 5, characterized in that: The elastic body chamber (31f) opens at the base end of the housing (31). The elastic support member (41) can be mounted on and removed from the sliding member (36).

8. A processing tool (10, 100), characterized in that have: A tool support (20, 120), wherein the tool support (20, 120) comprises: Tool mounting hole (21c); a holding body (25) arranged to be able to move forward and backward toward the inside of the tool mounting hole (21c); and A push rod (27), the push rod (27) being configured to be able to move forward and backward in the tool mounting hole (21c); A sliding tool (50) is detachably mounted on the tool mounting hole (21c) and comprises a sliding body (51). The sliding body (51) is provided with a first front end tool (53) having a blade in the front end direction, is forced in the front end direction by the push rod (27), and reciprocates in the tool mounting hole (21c), and has a first guide groove (52) extending along the tool mounting hole (21c) and for inserting the retaining body (25) on the outer peripheral surface of the sliding body (51); and A loading and unloading tool (30), which replaces the sliding tool (50) and is installed in the tool installation hole (21c), and has: A housing (31), the housing (31) being supported at a predetermined position of the tool mounting hole (21c) and having: an elastomer chamber (31f); and A retaining body insertion hole (31c), wherein the retaining body insertion hole (31c) is for the retaining body (25) to be inserted; a sliding member (36) capable of being mounted with a front end tool (43) having a blade in a base end direction, the sliding member (36) being supported by the housing (31), reciprocating in the tool mounting hole (21c), and having a second guide groove (40) extending along the tool mounting hole (21c); an elastic body (39), the elastic body (39) being arranged in the elastic body chamber (31f) and applying force to the sliding member (36) in a base end direction; as well as A rotation stopper (33), the rotation stopper (33) is arranged on the housing (31) and inserted into the second guide groove (40).

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