Turret stand

Abstract

To provide a removal tool capable of rotating at high speed to a turret having a nozzle jetting liquid.SOLUTION: A turret base 11 has: a turret 15 which is rotatably arranged in a turret base body 13 and has a first tool fitting part 15a to which a removal tool 55 can be fitted and a second tool fitting part 15b to which a nozzle 35 can be fitted; a compressed-air source 75; an air connection device 60 which is arranged in the turret base body 13 and connects the compressed-air source 75 and the first tool fitting part 15a when the first tool fitting part 15a is at a processing position 5; a tool casing 45; an air tool 40 which is arranged in the tool casing 45 and has a motor rotated by compressed air supplied by the compressed-air source 75 via the air connection device 60 and a first main shaft 51 connected to the motor; and a pressurized liquid source 25 which supplies pressurized liquid and is connected to the nozzle 35 rotatably supported by the second tool fitting part 15b via the turret 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a turret base. [Background technology]

[0002] A turret device has been proposed (Patent No. 5432943) that has a turret head rotatably supported on a center post fixed to a quill, a cleaning liquid supply flow path that supplies cleaning liquid to the cleaning tool, a spindle drive device that rotates the cleaning tool, and a turret drive device that rotates the turret head. Summary of the Invention [Problem to be solved by the invention]

[0003] There are cases where high-pressure jetting alone is not enough to remove burrs all the way to the base. In such cases, deburring using a rotating removal tool may be performed in addition to high-pressure jetting. When deburring using a removal tool, it is desirable to rotate the removal tool at a higher rotational speed than the nozzle. The present invention aims to add a removal tool capable of high speed rotation to a turret having a nozzle for spraying liquid. [Means for solving the problem]

[0004] A first aspect of the present invention is A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; It is a turret base having the above.

[0005] The pressurized liquid is, for example, a cleaning liquid or a coolant. The pressurized liquid may be, for example, an oil-based liquid or a water-based liquid. The pressure of the pressurized liquid is, for example, 1 MPa to 100 MPa. The source of the pressurized liquid is, for example, a liquid pump or a liquid connection port.

[0006] The removal tool may be, for example, a drill, a reamer, a carbide rotary bur, a grinding stone, or a brush. The nozzle may be, for example, a straight jet nozzle, a horizontal jet nozzle, or a lance.

[0007] The compressed air source is, for example, a compressor or a compressed air supply port. The compressed air supply port is connected to, for example, an external compressor. The compressed air source supplies compressed air to the turret base as purge air or operating air.

[0008] The combination of one connection body, a plurality of first tool mounting portions, and a plurality of second air connection portions respectively connected to the first tool mounting portions is An air connection device, comprising: a connecting plate disposed at the tip of the rod; a third air connection portion disposed on the connecting plate and connected to the exhaust portion; a fourth air connection portion disposed on the turret, the fourth air connection portion being connected to the third air connection portion when the first air connection portion is connected to the second air connection portion, and being separated from the third air connection portion when the first air connection portion is separated from the second air connection portion; The air connection device may be combined with an air connection device having a turret exhaust passage connecting the first tool mounting portion and the fourth air connection portion. Here, the plurality of second air connection portions may be coupled to each other. The coupled plurality of second air connection portions may be disk-shaped. The disk-shaped second air connection portion may be disposed radially outward of the turret.

[0009] The connecting device may have a guide that guides the connecting plate in the reciprocating direction of the piston. The guide may be, for example, a guide bush and a shaft that reciprocates through the guide bush. The guide may be, for example, a linear guide. When multiple pistons and rods are arranged, the rod may guide the connecting plate.

[0010] The second air connection and the third air connection may have a structure that prevents compressed air from leaking, for example, the second air connection and the third air connection may have a check valve.

[0011] The turret base may include a spindle support base disposed on the second tool mounting portion, a second spindle rotatably supported on the spindle support base, an annular passage disposed between the spindle support base and the second spindle, an upstream passage connecting the pressurized liquid source and the annular passage, and a downstream passage disposed inside the second spindle and connecting the annular passage and the nozzle. [Effects of the Invention]

[0012] According to the present invention, a removal tool capable of high speed rotation can be added to a turret having a nozzle for spraying liquid. [Brief explanation of the drawings]

[0013] [Figure 1] Deburring machine having a turret base according to embodiment 1 [Figure 2] FIG. 1 is a longitudinal sectional view of a turret table according to a first embodiment; [Figure 3] Assembly diagram of the leak valve of embodiment 1 [Figure 4A] Enlarged view of part IV in Figure 2 [Figure 4B] Enlarged view of part IV in Figure 2 with the removal tool removed. [Figure 5] Cross section of line VV in Figure 2 [Figure 6]Cross section of Figure 5 along line VI-VI [Figure 7] 10 is a perspective view of a turret base according to a second embodiment; [Figure 8] Cross-sectional view of plane VIII of Figure 7 [Figure 9] 10 is a perspective view of a turret base according to a second embodiment; [Figure 10] Cross section of Figure 9 taken along plane XX DETAILED DESCRIPTION OF THE INVENTION

[0014] (Embodiment 1) As shown in FIG. 1 , a deburring machine 10 of this embodiment includes a turret base 11 and a table 3 on which a workpiece 4 is placed. The turret base 11 is movable relative to the table 3 in the left-right direction (X-axis), the front-back direction (Y-axis), and the up-down direction (Z-axis). The turret base 11 includes a turret base main body 13, a turret 15, a pump (pressurized liquid source) 25, an air tool 40, an air connection device 60, a compressed air source 75, and an exhaust unit 93. The turret base 11 may include a nozzle 35. The air tool 40 includes a spindle (first spindle) 51 and a removal tool 55.

[0015] The turret 15 has a plurality of first tool mounting portions 15a and a plurality of second tool mounting portions 15b. In this embodiment, the first tool mounting portions 15a and the second tool mounting portions 15b are arranged alternately. In this embodiment, the total number of first tool mounting portions 15a and second tool mounting portions 15b is six. Therefore, three first tool mounting portions 15a and three second tool mounting portions 15b are arranged at a central angle of 120 degrees. The turret 15 rotates around the turret rotation axis 1. The air tools 40 and the nozzle 35 extend radially from the turret 15. The position extending downward from the turret 15 is the machining position 5. The removal tool 55 and the nozzle 35 attached to the first or second tool mounting portion 15a, 15b at the machining position 5 rotate around the spindle central axis 2.

[0016] The compressed air source 75 supplies compressed air to the turret base 11. The compressed air source 75 supplies operating air and purge air to the inside of the turret base 11.

[0017] 2 is a vertical cross-sectional view of the turret table 11 cut along a plane passing through the turret rotation axis 1 and the main spindle central axis 2. In FIG. 2, the inside of the turret table main body 13 and the turret 15 are omitted. 2, the turret base 11 has a nozzle rotation shaft 17, a rail 23, a turret valve 27, a rotary manifold 19, and a plurality of branch pipes 26. The turret valves 27 are each disposed on a second tool mounting portion 15b.

[0018] The nozzle rotation shaft 17 is supported by the turret base body 13 so as to be rotatable around the spindle central axis 2. The nozzle rotation shaft 17 has a key groove (first rotational connection portion) 17a at its lower end. The key groove 17a extends perpendicular to the spindle central axis 2.

[0019] The rail 23 has a key slideway surface 23a and a notch 23b. The rail 23 is arranged on the tip side of the turret table 11 (on the left side in FIG. 2) with respect to the spindle central axis 2, centered on the turret rotation axis 1. The rail 23 is annular. The key slideway surface 23a is the end face of the rail 23 located on the base end side of the turret table 11 (on the right side in FIG. 2). The key slideway surface 23a is a plane perpendicular to the turret rotation axis 1. The notch 23b is semi-cylindrical and arranged around the spindle central axis 2. The nozzle rotation axis 17 is arranged to pass through the notch 23b.

[0020] The rotary manifold 19 is disposed at the tip of the turret 15. The branch pipe 26 connects the pump 25 and the second tool mounting portion 15b via the rotary manifold 19 and a turret valve 27.

[0021] The turret 11 has a spindle support base 29 , a second spindle 33 , and a bearing 31 . The spindle support base 29 is disposed on the second tool mounting portion 15b. The spindle support base 29 has a body 29a, an upstream liquid flow path 29b, and an annular flow path 29c. The body 29a is hollow and cylindrical, and extends about the spindle central axis 2. The annular flow path 29c is disposed in the center of the interior of the body 29a. The upstream liquid flow path 29b connects the branch pipe 26 and the annular flow path 29c.

[0022] The second main shaft 33 is supported inside the main shaft support base 29 via bearings 31. The second main shaft 33 has a shaft portion 33a, a flange 33b, a main shaft passage 33c, and a key (second rotational connection portion) 21. The shaft portion 33a slides on the inner surface of the body 29a and contacts the annular passage 29c. The flange 33b is disposed on the tip surface of the shaft portion 33a. The main shaft passage 33c is disposed inside the second main shaft 33 and connects the annular passage 29c and the flange 33b.

[0023] The key 21 is disposed at the base end of the shaft portion 33a. When the second tool mounting portion 15b is in the machining position 5, the key 21 engages with the key groove 17a and transmits the rotation of the nozzle rotation shaft 17 to the second spindle 33. When the turret 15 rotates, the angle of the nozzle rotation shaft 17 is positioned at the spindle origin 6. Here, the spindle origin 6 is the angle at which the key 21 and the key groove 17a are parallel to the key slide surface 23a. When the turret 15 rotates and the second tool mounting portion 15b is not in the machining position 5, the side of the key 21 is guided by the key slide surface 23a, and the key 21 prevents the second spindle 33 from rotating.

[0024] The nozzle 35 is, for example, a straight injection nozzle, a lance, or a lateral injection nozzle. The nozzle 35 is fastened to the flange 33b. The nozzle 35 is connected to the main shaft flow path 33c.

[0025] As shown in FIG. 2, the turret base 11 has a tool support base 39 and a purge valve 41. The tool support base 39 has a body 39a, an air supply chamber 39b, and an exhaust chamber 39c. The body 39a is shaped like a right cylinder and extends along the spindle central axis 2. The air supply chamber 39b is also shaped like a right cylinder. The air supply chamber 39b extends along the spindle central axis 2 on the base end side (upper side in FIG. 2) of the tool support base 39. The exhaust chamber 39c is annular and is located on the tip side (lower side in FIG. 2) of the air supply chamber 39b. For example, the exhaust chamber 39c has a rectangular cross section.

[0026] The purge valve 41 is disposed at the base end (the upper end in FIG. 2) of the tool support base 39. As shown in FIGS. 2 and 3, the purge valve 41 has a key 21, a valve seat 42, a valve body 43, and a bearing 44. The valve seat 42 has a seat 42b and at least one purge passage 42a. The seat 42b is a flat plate perpendicular to the main shaft central axis 2. The purge passage 42a extends parallel to the main shaft central axis 2 and passes through the seat 42b.

[0027] The valve element 43 has a plate valve 43a, a shaft portion 43b, and a purge passage 43c. The plate valve 43a is a disk perpendicular to the spindle central axis 2. The plate valve 43a slides in the rotational direction on the inner surface of the valve seat 42. The shaft portion 43b extends from the plate valve 43a along the spindle central axis 2 toward the center of the turret 15 (upward in Figures 2 and 3). The purge passage 43c extends parallel to the spindle central axis 2 and passes through the plate valve 43a and the shaft portion 43b. When the valve element 43 is at the spindle origin 6, the purge passage 43c is connected to the purge passage 42a.

[0028] The bearing 44 is disposed at the base end (the upper end in FIGS. 2 and 3) of the tool support base 39. The bearing 44 supports the shaft portion 43b. The key 21 is disposed at the base end of the shaft portion 43b (the upper end in FIGS. 2 and 3). The key 21 rotates integrally with the valve body 43.

[0029] 2, the purge valve 41 is fully open when the nozzle rotation axis 17 is at the spindle origin 6. Even when the first tool mounting portion 15a is not at the machining position 5, the key 21 is guided by the key sliding surface 23a, and the purge valve 41 opens. When the first tool mounting part 15a is in the machining position 5, if the nozzle rotation shaft 17 rotates by a large amount (for example, 90 degrees), the valve body 43 also rotates, causing the positions of the purge flow path 43c and the purge flow path 42a to shift in the circumferential direction, and the purge valve 41 closes.

[0030] 2 and 4A, the air tool 40 has a body (tool housing) 45, a motor 47, a main bearing 49, a main shaft 51, a cover 53, a packing 52, a removal tool 55, at least one ball (rotation prevention body) 57, and an elastic body 58. Here, Fig. 4A shows a state in which the removal tool 55 is attached.

[0031] The body 45 is hollow cylindrical and extends along the spindle central axis 2 . The motor 47 is an air motor. The motor 47 has an output shaft 47a. The motor 47 may be embedded in the base end of the body 45. The motor 47 is connected to the air supply chamber 39b and the exhaust chamber 39c.

[0032] 2 and 4A, the main shaft 51 is supported inside the body 45 via the main bearing 49. The main shaft 51 has a right cylindrical shape and extends about the main shaft central axis 2. The main shaft 51 has a tool holding hole 51b and at least two (two in this embodiment) ball holding holes (anti-rotation body holding holes) 51g. The main shaft 51 may have a serration hole 51a, a communication hole 51d, an elastic body holding hole 51c, a packing groove 51f, and a narrow diameter portion 51e.

[0033] 4A, tool holding hole 51b opens at the tip of spindle 51 and is disposed about spindle central axis 2. Tool holding hole 51b is a right cylindrical hole with a bottom. Elastic body holding hole 51c is a right cylindrical hole with a bottom, and is disposed at the bottom of tool holding hole 51b. Serration hole 51a is disposed at the base end of spindle 51, centered on spindle central axis 2. Serration hole 51a is fastened to output shaft 47d. Communication hole 51d extends along spindle central axis 2 and connects serration hole 51a and tool holding hole 51b.

[0034] Thin diameter portion 51e is disposed at the tip of main shaft 51. Thin diameter portion 51e has an outer diameter smaller than that of the central portion of main shaft 51. The radius of the outer surface of thin diameter portion 51e is substantially equal to the distance from main shaft central axis 2 to the outermost surface of ball 57. Packing groove 51f is disposed on the outer cylindrical surface of the tip of main shaft 16. Packing groove 51f is a circumferential groove having a rectangular cross section. Ball retaining hole 51g is disposed at the tip end of spindle 16. Ball retaining hole 51g is disposed axially closer to the base end than packing groove 51f. Ball retaining hole 51g penetrates from the outer surface of spindle 51 to tool retaining hole 51b.

[0035] The cover 53 has a pressing surface 53b and a relief portion 53c. The cover 53 may have an umbrella portion 53d and a shaft portion 53a. The cover 53 reciprocates between the connection position 7 and the tool attachment / detachment position 8. The umbrella portion 53d covers the tip end of the body 45. The shaft portion 53a is disposed at the base end of the umbrella portion 53d and inside the body 45. The shaft portion 53a has a hollow right cylindrical shape.

[0036] The pressing surface 53b is the inner surface of the shaft portion 53a. The diameter of the pressing surface 53b is substantially equal to the diameter of the small diameter portion 51e. When the cover 53 is in the connecting position 7, the ball 57 abuts against the pressing surface 53b. The relief portion 53c is disposed at the base end of the cover 53. For example, the relief portion 53c is a circumferential groove having a trapezoidal cross section. In other words, at the relief portion 53c, the shaft portion 53a has a large inner diameter. The relief portion 53c may open to the base end surface of the cover 53. The relief portion 53c is disposed on the base end side of the pressing surface 53b.

[0037] Ball 57 is held inside ball holding hole 51g. When cover 53 is in connection position 7, the outermost surface of ball 57, as viewed from spindle center axis 2, contacts pressing surface 53b. It should be noted that the ball 57 may be replaced by a pin extending in the direction of the spindle central axis 2 of the ball holding hole 51g. The tip end surface of the anti-rotation body which is a pin may be flat instead of spherical.

[0038] The cover 53 may have an expansion chamber 53e. The expansion chamber 53e is a circumferential groove with a rectangular cross section that opens to the base end surface of the cover 53. The expansion chamber 53e has a smooth inner circumferential cylindrical surface 53g. The body 45 may include a throttle valve 45a. The throttle valve 45a protrudes radially outward from the body 45. The throttle valve 45a has a smooth outer cylindrical surface 45b. When the cover 53 is in the connecting position 7, the throttle valve 45c is inserted into the expansion chamber 53e. At this time, the outer cylindrical surface 45b and the inner cylindrical surface 53g face each other with a small gap 54 between them. The distance between the tip surface of the throttle valve 45a and the bottom surface of the expansion chamber 53e is sufficiently larger than the gap. The throttle valve 45a and the expansion chamber 53e form an axial labyrinth seal. The purge air expands in the expansion chamber 53e and is discharged through the small gap 54. This creates fluid turbulence within the expansion chamber 53e, further increasing the discharge speed. This also prevents foreign matter, steam, and moisture from entering through the gap between the cover 53 and the body 45.

[0039] For example, removal tool 55 is a carbide rotary burr. Removal tool 55 has an outer cylindrical surface 55a, a ball groove (anti-rotation groove) 55b, an elastic body holding hole 55c, and a cutting edge 55d. Removal tool 55 is a right cylinder. Outer cylindrical surface 55a slides in tool holding hole 51b. Ball groove 55b is disposed on outer cylindrical surface 55a and extends along spindle 51. A cross section of ball groove 55b is semicircular. The multiple ball grooves 55b are disposed rotationally symmetrically with respect to spindle central axis 2. Elastic body holding hole 55c opens at the base end surface of removal tool 55 and extends along spindle central axis 2. Elastic body holding hole 55c is a cylindrical hole.

[0040] The elastic body 58 is a compression coil spring or a three-dimensional leaf spring. The elastic body 58 biases the removal tool 55 toward the distal end. The elastic body 58 is guided by the elastic body holding hole 51c and the elastic body holding hole 55c.

[0041] The packing 52 is a ring-shaped packing such as an O-ring. The packing 52 is fitted into the packing groove 51f and seals the gap between the main shaft 51 and the cover 53.

[0042] As shown in FIG. 4B, the operator or the deburring machine 10 can move the cover 53 to the tool detachment position 8. For example, the tool detachment position 8 is closer to the tip end than the connection position 7 (lower in FIG. 4B). At this time, the relief portion 53c overlaps with the ball holding hole 51g. The removal tool 55 is biased toward the tip end (downward) by the elastic body 58. When the removal tool 55 is pushed out and the ball groove 55b leaves the ball holding hole 51g, the ball 57 is pushed outward in the radial direction by the ball groove 55b. Then, the ball 57 is stored in the relief portion 53c. Then, the removal tool 55 comes out of the spindle 51.

[0043] When the worker or the deburring machine 10 reinserts the removal tool 55 into the tool holding hole 51b and moves the cover 53 to the connection position 7, the balls 57 enter the ball grooves 55b. The cover 53 is held in the connection position 7 by the elasticity of the packing 52 and the frictional force between the packing 52 and the cover 53.

[0044] As shown in Figures 2, 5, and 6, the air connection device 60 has a connection disc 61, a connection body 77, a piston 81, a piston seal 84, a rod 83, a connecting plate 88, a first coupler (first air connection portion) 87, a second coupler (second air connection portion) 63, a third coupler (third air connection portion) 89, a fourth coupler (fourth air connection portion) 67, a fixed side air supply passage 79, a fixed side exhaust passage 91, a turret air supply passage 65, and a turret exhaust passage 69.

[0045] 1, the connection body 77, the connecting plate 88, the first coupler (first air connection portion) 87, the second coupler (second air connection portion) 63, the third coupler (third air connection portion) 89, and the fourth coupler (fourth air connection portion) 67 are disposed, for example, diagonally upward to the right when viewed from the front end of the turret base 11. The connection disk 61 is disposed on the back surface of the turret 15.

[0046] As shown in FIG. 2, the connecting disk 61 is divided into two in the thickness direction: a first connecting plate 61a and a second connecting plate 61b. The first connecting plate 61a and the second connecting plate 61b have the same shape and are stacked together, for example, via a packing (not shown). As shown in FIG. 5, the first connecting plate 61a and the second connecting plate 61b may each have a plurality of flange portions 61c (three in FIG. 5) and a plurality of bridge portions 61d (three in FIG. 5). The flange portions 61c are located corresponding to the tool mounting portions 15a. Each flange portion 61c is fastened to the tool support base 39.

[0047] The first connecting plate 61a is provided with multiple air supply grooves 65b and multiple exhaust grooves 69b. As shown in FIG. 2, the air supply grooves 65b and the exhaust grooves 69b are closed by the second connecting plate 61b, respectively, to form the main portions of the turret air supply passage 65 and the turret exhaust passage 69. The air supply grooves 65b and the exhaust grooves 69b extend along an arc centered on the turret rotation axis 1 and are arranged side by side in order from the inside in the radial direction. The exhaust grooves 69b are arranged only in the flange portion 61c. The air supply grooves 65b extend clockwise from the flange portion 61c, past the bridge portion 61d, to the next flange portion (downward in FIG. 5). Here, the radius of curvature of the exhaust grooves 69b becomes smaller when they reach the bridge portion 61d. Multiple (three in FIG. 5) pairs of air supply grooves 65b and exhaust grooves 69b are arranged rotationally symmetrically around the turret rotation axis 1. The air supply groove 65b extending from the bridge portion 61d enters the radially inner side of the adjacent air supply groove 65b in a clockwise direction.

[0048] 5 and 6, the second coupler 63 and the fourth coupler 67 are disposed on the back surface of the connecting disc 61 when viewed from the spindle central axis 2. The second coupler 63 and the fourth coupler 67 are disposed in a line slightly radially outward from the flange portion 61c. The fourth coupler 67 may include a check valve.

[0049] The turret air supply passage 65 has an air supply passage 65a and an air supply passage 65c. As shown in FIG. 6, the air supply passage 65a connects the air supply groove 65b and the second coupler 63 at one end radially outward of the flange portion 61c, on the clockwise opposite side of the air supply groove 65b. As shown in FIGS. 2 and 5, the air supply passage 65c is arranged from the second connecting plate 61b through the tool support base 39 at the other clockwise end of the air supply groove 65b, and connects the air supply groove 65b and the air supply chamber 39b. In other words, the air supply passages 65a and 65c are arranged at phases that differ by approximately 120 degrees around the turret rotation axis 1.

[0050] The turret exhaust path 69 has an exhaust path 69a and an exhaust path 69c. As shown in FIG. 6, the exhaust path 69a connects the exhaust groove 69b and the fourth coupler 67 at the flange portion 61c. As shown in FIG. 1, the exhaust path 69c is formed by piping. When viewed from the front end direction of the turret base 11 (the left side in FIG. 1), the exhaust path 69c exits from the clockwise end of the exhaust groove 69b, extends clockwise, and connects to the exhaust chamber 39c of the tool support base 39 that is connected to the adjacent (lower in FIG. 1) flange portion 61c.

[0051] As shown in FIG. 6, the connection body 77 has a cylinder chamber 77a, a rod guide 77b, and an elastic guide 77c. The cylinder chamber 77a is shaped like a right cylinder. The cylinder chamber 77a is divided by a piston 81 into a first chamber 77a1 on the base end side and a second chamber 77a2 on the tip end side. The elastic guide 77c is shaped like a right cylinder and is connected to the second chamber 77a2. The rod guide 77b is shaped like a right cylinder and has a smaller diameter than the elastic guide 77c. The rod guide 77b is arranged coaxially with the cylinder chamber 77a and is connected to the elastic guide 77c. The fixed-side air supply passage 79 connects the first chamber 77a1 and the compressed air source 75. The fixed-side air supply passage 79 may be arranged through the turret base main body 13.

[0052] Instead of the connection disc 61, a connection block, an air supply pipe, and an exhaust pipe may be arranged. In this case, the connection block is fastened to the turret 15. The second coupler 63 and the fourth coupler 67 are arranged on the connection block. The air supply pipe connects the second coupler 63 and the air supply chamber 39b. The exhaust pipe connects the fourth coupler 67 and the exhaust chamber 39c.

[0053] The piston 81 has a piston body 81a and a seal groove 81b. The piston body 81a has a right cylindrical shape and reciprocates inside the cylinder chamber 77a. The seal groove 81b is disposed on the outer periphery of the piston body 81a. A piston seal 84 is fitted in the seal groove 81b. The rod 83 protrudes from the connecting body 77 and extends toward the tip of the piston 81 (toward the turret 15). The rod 83 is slidably guided by the rod guide 77b. The rod 83 is fastened to a connecting plate 88. The elastic body 86 is disposed inside the elastic body guide 77c and biases the piston 81 toward the base end (the direction in which the rod 83 contracts). The piston flow path 85 passes through the piston 81 and the rod 83.

[0054] The first coupler 87 and the third coupler 89 are arranged in a row on the connecting plate 88. The first coupler 87 and the third coupler 89 are arranged at the same height on the surface of the connecting plate 88 facing the turret 15. The piston flow path 85 is connected to the first coupler 87. The first coupler 87 may have a check valve. The third coupler 89 is connected to an exhaust unit 93 by a fixed-side exhaust path 91. The exhaust unit 93 is, for example, an air muffler. The fixed-side exhaust path 91 may be arranged through the turret base main body 13.

[0055] The connection body 77 may have a set of cylinder chambers 77a, elastic body guides 77c, and rod guides 77b. The air connection device 60 may have a set of pistons 81, rods 83, piston passages 85, elastic bodies 86, first couplers 87, and second couplers 63. In this case, the air connection device 60 may have a linear guide device. The linear guide device may be, for example, a rail guide, a linear bushing and shaft, or a ball spline.

[0056] The method of using the deburring machine 10 will be described below. When the first tool mounting portion 15a is in the machining position 5, the nozzle rotation shaft 17 rotates 90 degrees and closes the purge valve 41. Next, compressed air is sent from the compressed air source 75 to the cylinder chamber 77a. Then, the piston 81 moves forward toward the tip (lower left in FIG. 6) against the elastic force of the elastic body 86. The rod 83 extends, and the first coupler 87 connects to the second coupler 63. In addition, the third coupler 89 connects to the fourth coupler 67.

[0057] The compressed air is supplied to the motor 47 through the piston flow path 85, the first coupler 87, the second coupler 63, the turret air supply path 65, and the air supply chamber 39b. This causes the motor 47 to rotate. A portion of the compressed air that rotates the motor 47 flows from the exhaust chamber 39c through the turret exhaust path 69, the fourth coupler 67, the third coupler 89, and the fixed-side exhaust path 91 to the exhaust section 93, and is then discharged from the exhaust section 93. The deburring machine 10 moves the turret table 11 freely relative to the workpiece 4, and brings the rotating removal tool 55 into contact with the burrs on the workpiece 4 to deburr them. At this time, the remainder of the compressed air that rotated the motor 47 is purged from the gap 54 between the cover 53 and the body 45 and the gap (not shown) between the spindle 51 and the removal tool 55.

[0058] When the cutting edge 55d is pressed against the workpiece 4, the removal tool 55 returns to a position where the thrust force received from the workpiece 4 is balanced with the elastic force of the elastic body 58. Since the elastic body 58 expands and contracts according to the height of the workpiece 4, the cutting depth is kept constant regardless of variations in the height of the workpiece 4.

[0059] Packing 52 is disposed between spindle 51 and cover 53. When spindle 51 rotates, centrifugal force acts on packing 52, causing packing 52 to elastically deform and be pressed against the inner surface of cover 53. Because frictional force acts between packing 52 and cover 53, movement of cover 53 to the tool attachment / detachment position 8 is inhibited.

[0060] The compressed air source 75 stops supplying compressed air. Then, the piston 81 moves toward the base end due to the elastic force of the elastic body 86. The rod 83 contracts, and the first coupler 87 moves away from the second coupler 63. In addition, the third coupler 89 moves away from the fourth coupler 67.

[0061] Next, the nozzle rotation shaft 17 is positioned at the original position 6, and the purge valve 41 is opened. The purge air supplied to the turret table 11 passes through the purge flow path 42a, the purge flow path 43c, and the air supply chamber 39b, and is then supplied to the air tool 40. The purge air is purged from the gap 54 between the cover 53 and the body 45, and the gap between the spindle 51 and the removal tool 55. The motor 47 may be stopped at the same time as the purge valve 41 is opened.

[0062] Next, the turret table 11 rotates the turret 15. When the first tool mounting portion 15a is not in the machining position 5, the key 21 is guided by the key slide surface 23a, and rotation of the purge valve 41 is suppressed. Therefore, the purge valve 41 remains open. Purge air is supplied from the turret 15 to the air tool 40 and is purged from the gap between the cover 53 and the body 45 and the gap between the spindle 51 and the removal tool 55.

[0063] When the second tool mounting portion 15b is in the processing position 5, the turret valve 27 opens. Next, the pump 25 supplies pressurized cleaning liquid to the turret 15. The cleaning liquid supplied from the pump 25 is supplied to the nozzle 35 via the rotary manifold 19, branch piping 26, turret valve 27, spindle support 29, and second spindle 33. The nozzle 35 then sprays the cleaning liquid. The nozzle rotation shaft 17 can rotate the nozzle 35. The deburring machine 10 moves the nozzle 35 relative to the workpiece 4 and causes the cleaning liquid to collide with the burrs on the workpiece 4 to deburr the workpiece 4. The pump 25 stops supplying the cleaning liquid to the turret 15. Then, the nozzle 35 stops spraying the cleaning liquid. When the nozzle rotation shaft 17 is positioned at the original position 6, the turret 15 can rotate.

[0064] According to the deburring machine 10 of this embodiment, the removal tool 55 is attached to the spindle 51 of the air tool 40 and rotated by the motor 47. Therefore, the rotation speed and rotation torque of the removal tool 55 can be designed independently of the rotation speed and rotation torque of the second spindle 33. The motor 47 is powered by compressed air. Therefore, it is not necessary to supply electricity to the air tool 40. Therefore, there is no risk of electric leakage from the air tool 40. Therefore, it is suitable for combination with the nozzle 35 that sprays pressurized liquid. It is particularly suitable for combination with the nozzle 35 that sprays conductive liquid (e.g., water-based liquid).

[0065] When viewed from the tip of the turret table 11, the connection body 77, connecting plate 88, first coupler (first air connection portion) 87, second coupler (second air connection portion) 63, third coupler (third air connection portion) 89, and fourth coupler (fourth air connection portion) 67 are arranged, for example, diagonally above the right of the turret 15. Since the machining position 5 is below, the nozzle 35 and air tool used for machining extend downward. Because the connection body 77 and other components are not arranged below, when the nozzle 35 and air tool 40 at the machining position 5 approach the workpiece 4, the connection body 77 and other components are less likely to interfere with the workpiece 4 or the table 3.

[0066] Whether the air tool 40 is in use or not, the turret base 11 can be purged through the gaps in the air tool 40. This prevents foreign matter and cleaning fluid from entering the inside of the air tool 40 from the outside.

[0067] The deburring machine 10 has multiple (three) sets of turret air supply passages 65, turret exhaust passages 69, and a tool support table 39. Therefore, the turret table 11 can arrange multiple air tools 40 on each tool support table 39. Different removal tools 55 (e.g., carbide rotary burrs, brushes, grinding wheels with burrs) can be attached to the multiple air tools 40, respectively. When the turret table 11 rotates each air tool 40 to the processing position 5, the air tool 40 at the processing position 5 is connected to the air connection device 60. The deburring machine 10 can select the optimal removal tool 55 depending on the type of workpiece 4 and the location to be deburred.

[0068] In the deburring machine 10, the connecting disks 61 are fastened to the tool support bases 39 that are evenly spaced in the circumferential direction. Therefore, when the rods 83 extend and the first coupler 87 and the second coupler 63, and the third coupler 89 and the fourth coupler 67 are connected, the connecting disks 61 are less likely to vibrate. Therefore, the connections between the first coupler 87 and the second coupler 63, and the third coupler 89 and the fourth coupler 67 are more likely to be stable.

[0069] (Embodiment 2) 7 and 8, the deburring machine 100 of this embodiment has a turret base 111, a compressed air source 75, and a dry air source 95. The turret base 111 has a turret base main body 13, a turret 115, a spindle support base 29, a second spindle 33, a nozzle 35, a tool support base 139, an air tool 40, a spindle support base (second spindle support base) 66, a third spindle 73, a bearing 68 (see FIG. 10), an air blow nozzle 74, and an air connection device 160.

[0070] The turret 115 has a first tool mounting portion 115a, a second tool mounting portion 115b, and a third tool mounting portion 115c.

[0071] As shown in FIG. 8, the air connection device 160 includes a first coupler 87, a second coupler 63, a third coupler 89, a fourth coupler 67, a fifth coupler (fifth air connection part) 99, a connection body 177, a piston 81, a piston seal 84, a piston flow path 85, an elastic body 86, a connecting plate 188, a rod 83, and a dry air connection pipe 97.

[0072] The tool support base 139 is disposed on the first tool mounting portion 115a. As shown in FIG. 8, the tool support base 139 has an air supply chamber 39b, an exhaust chamber 39c, a turret air supply passage 165, and a turret exhaust passage 169. The second coupler 63 and the fourth coupler 67 are disposed side by side on the back surface of the tool support base 139. The second coupler 63 is connected to the air supply chamber 39b by the turret air supply passage 165. The fourth coupler 67 is connected to the exhaust chamber 39c by the turret exhaust passage 169.

[0073] The connection body 177 is disposed at the same position as the processing position 5. The connection body 177 has a cylinder chamber 77a, a rod guide 77b, an elastic guide 77c, and an air inlet chamber 177d. The air inlet chamber 177d is disposed between the pair of cylinder chambers 77a. The air inlet chamber 177d extends parallel to the cylinder chambers 77a. The air inlet chamber 177d is a cylindrical hole. The air inlet chamber 177d is connected to the dry air source 95. The piston 81 and the rod 83 reciprocate within the cylinder chamber 77a. The dry air connecting pipe 97 slides into the air inlet chamber 177d and is guided into the air inlet chamber 177d.

[0074] The connecting plate 188 connects the pair of rods 83 and the dry air connecting pipe 97. The first coupler 87, the third coupler 89, and the fifth coupler 99 are arranged on the connecting plate 188. The rods 83, the dry air connecting pipe 97, the connecting plate 188, the first coupler 87, the third coupler 89, and the fifth coupler 99 reciprocate as a unit. The first coupler 87 is connected to the compressed air source 75 via the piston flow path 85 and the fixed-side air supply path 79 . The third coupler 89 is connected to the exhaust section 93 via the piston flow path 85 and the fixed side exhaust path 91 . The fifth coupler 99 is connected to the dry air source 95 via the dry air connection pipe 97, the air inlet chamber 177d, and the fixed side dry air flow path 96.

[0075] On the exhaust side, the piston 81, piston seal 84, elastic body 86, piston chamber 77a, and elastic body guide 77c may be omitted. In this case, the exhaust side is substantially the same as the combination of the air inlet chamber 177d and dry air connecting pipe 97.

[0076] The dry air source 95 is, for example, a compressor. The dry air source 95 may also be an air filter or a regulator. The air filter or regulator is connected to a compressor disposed outside the turret base 111. The dry air source 95 supplies dry air. Preferably, the dry air does not contain lubricating oil. Preferably, compressed air source 75 provides compressed air containing lubricating oil.

[0077] Fig. 9 shows the turret 115 of Fig. 7 rotated 60 degrees counterclockwise as viewed from the front end. Fig. 10 is a cross-sectional view taken along a plane passing through the turret rotation axis 1 and the spindle central axis 2 of Fig. 9. As shown in FIG. 10, the air connection device 160 has a sixth coupler (sixth air connection portion) 71 and a turret drying air path 170. The sixth coupler 71 is disposed on the rear surface of the spindle support base 66 .

[0078] The spindle support base 66 is disposed on the third tool mounting portion 115c. The spindle support base 66 has a body 66a and a cylindrical hole 66d. The cylindrical hole 66d extends along the central axis 2 of the spindle. The turret drying air passage 170 is disposed in the spindle support base 66. The turret drying air passage 170 has a connecting passage 170a and an annular passage 170b. The cylindrical hole 66d extends about the spindle central axis 2. The annular passage 170b is disposed in the cylindrical hole 66d. The connecting passage 170a connects the annular passage 170b and the sixth coupler 71.

[0079] The third main shaft 73 is supported by the main shaft support base 66 via a bearing 68. The third main shaft 73 has a shaft portion 73a, a flange 73b, a main shaft passage 73c, and a key 21. The shaft portion 73a slides in the cylindrical hole 66d. The main shaft passage 73c is disposed inside the third main shaft 73 and connects the annular passage 170b and the flange 73b. The key 21 is disposed at the base end of the shaft portion 73a. The air blow nozzle 74 is substantially identical to the nozzle 35 .

[0080] The method of using the deburring machine 100 will be described below. When the first tool attachment portion 115a is in the machining position 5, the compressed air source 75 supplies pressurized air to the cylinder chamber 77a, causing the piston 81 and connecting plate 188 to move forward together. Then, the first coupler 87 and the second coupler 63 connect. Also, the third coupler 89 and the fourth coupler 67 connect. The pressurized air is supplied to the pneumatic tool 40 via the piston flow path 85, the first coupler 87, and the second coupler 63. The exhaust air from the pneumatic tool 40 is discharged from the exhaust portion 93 via the fourth coupler 67, the third coupler 89, and the piston flow path 85. Then, the spindle 51 of the pneumatic tool 40 rotates.

[0081] When the third tool mounting portion 115c is in the machining position 5, the compressed air source 75 supplies pressurized air to the cylinder chamber 77a, causing the piston 81, the connecting plate 188, and the dry air connecting pipe 97 to move forward together. The fifth coupler 99 and the sixth coupler 71 then connect. The dry air source 95 then supplies dry air to the air inlet chamber 177d. The dry air is supplied to the air blow nozzle 74 via the dry air connecting pipe 97, the fifth coupler 99, the sixth coupler 71, the turret dry air passage 170, and the third main shaft 73. The air blow nozzle 74 sprays dry air.

[0082] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist of the present invention, and all technical matters included in the technical ideas described in the claims are subject to the present invention. The embodiments are preferred examples, but a person skilled in the art can realize various alternatives, modifications, variations, or improvements from the contents disclosed in this specification, and these are included in the technical scope described in the appended claims. [Explanation of symbols]

[0083] 5 Processing position 11, 111 Turret stand 13 Turret base body 15, 115 turrets 15a, 115a First tool attachment part 15b, 115b Second tool attachment part 25 Pump (pressurized fluid source) 35 nozzles 40 Air Tools 45 Tool Case 47 Motor 51 Spindle (1st spindle) 55 Removal tool 60, 160 Air connection device 75 Compressed Air Source

Claims

1. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and the first spindle and the tool housing are arranged with a gap therebetween for purging the compressed air that rotates the motor. Turret stand.

2. a nozzle rotation shaft disposed inside the turret, the nozzle rotation shaft having a first rotation connection portion at an end portion facing the second tool mounting portion in the processing position; a second spindle to which the nozzle can be coupled and which is rotatably supported by the second tool mounting portion, the second spindle having a second rotary connection portion which is connected to the first rotary connection portion when the second tool mounting portion is in the processing position; The turret base of claim 1 , comprising:

3. The air connection device is a connecting body having a cylinder chamber connected to the compressed air source and installed at a position different from the processing position; a piston arranged reciprocably within the cylinder chamber; a rod extending from the piston toward the turret; a first air connection portion disposed at the tip end of the rod; a piston passage passing through the rod and the piston; an elastic body disposed in the connection body and biasing the piston in a direction to retract the rod; a second air connection portion disposed on the turret, the second air connection portion being connected to the first air connection portion when the first tool mounting portion is located at the machining position and the compressed air is supplied to the cylinder chamber; a turret air supply passage connecting the second air connection portion and the first tool mounting portion; 3. The turret base according to claim 1 or 2, comprising:

4. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and The air connection device is a connecting body having a cylinder chamber connected to the compressed air source and installed at a position different from the processing position; a piston arranged reciprocably within the cylinder chamber; a rod extending from the piston toward the turret; a first air connection portion disposed at the tip end of the rod; a piston passage passing through the rod and the piston; an elastic body disposed in the connection body and biasing the piston in a direction to retract the rod; a second air connection portion disposed on the turret, the second air connection portion being connected to the first air connection portion when the first tool mounting portion is located at the machining position and the compressed air is supplied to the cylinder chamber; a turret air supply passage connecting the second air connection portion and the first tool mounting portion; and an exhaust section that exhausts the compressed air from the first tool attachment section, The air connection device is a connecting plate disposed at the tip of the rod; a third air connection portion disposed on the connecting plate and connected to the exhaust portion; a fourth air connection portion disposed on the turret, the fourth air connection portion being connected to the third air connection portion when the first air connection portion is connected to the second air connection portion, and being separated from the third air connection portion when the first air connection portion is separated from the second air connection portion; a turret exhaust passage connecting the first tool mounting portion and the fourth air connection portion; The turret base further comprises:

5. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and The air connection device is a connecting body having a cylinder chamber connected to the compressed air source and installed at a position different from the processing position; a piston arranged reciprocably within the cylinder chamber; a rod extending from the piston toward the turret; a first air connection portion disposed at the tip end of the rod; a piston passage passing through the rod and the piston; an elastic body disposed in the connection body and biasing the piston in a direction to retract the rod; a second air connection portion disposed on the turret, the second air connection portion being connected to the first air connection portion when the first tool mounting portion is located at the machining position and the compressed air is supplied to the cylinder chamber; a turret air supply passage connecting the second air connection portion and the first tool mounting portion; and one connecting body; A plurality of the first tool attachment portions; a plurality of second air connection portions each connected to the first tool attachment portion; The turret base as described above has

6. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and a nozzle rotation shaft disposed inside the turret, the nozzle rotation shaft having a first rotation connection portion at an end portion facing the second tool mounting portion in the processing position; a second spindle to which the nozzle can be coupled and which is rotatably supported by the second tool mounting portion, the second spindle having a second rotary connection portion which is connected to the first rotary connection portion when the second tool mounting portion is in the processing position; and a purge passage disposed in the first tool mounting portion and connecting the inside of the turret with the air tool; a purge valve rotatably disposed on the first tool mount, a second rotary connection portion that is connected to the first rotary connection portion when the first tool attachment portion is in the processing position; a purge valve that closes the purge passage when the first tool mounting portion is in the processing position by rotation of the nozzle rotation shaft, and opens the purge passage when the first tool mounting portion is not in the processing position; A turret base having

7. a rail disposed inside the turret, the rail supporting the second rotational connection portion when the first tool attachment portion is not at the processing position, and maintaining a rotational phase of the purge valve; 7. The turret base of claim 6.

8. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and a purge passage disposed in the first tool mounting portion and connecting the inside of the turret with the air tool; a purge valve disposed in the purge passage, the purge valve closing when the first tool mount is in the processing position and opening when the first tool mount is not in the processing position; Turret stand.

9. A turret base body, A turret rotatably disposed on the turret base body, a first tool attachment portion to which a removal tool can be attached; a second tool attachment portion to which a nozzle can be attached; a turret having a a compressed air source for supplying compressed air; an air connection device disposed on the turret base body, the air connection device connecting the compressed air source and the first tool mounting portion when the first tool mounting portion is in the processing position; An air tool disposed on the first tool attachment portion, A tool housing; a motor disposed in the tool housing and rotated by the compressed air supplied from the compressed air source via the air connection device; a first spindle rotatably supported by the tool housing and connected to the motor; an air tool having a pressurized fluid source for supplying pressurized fluid, the pressurized fluid source being connected via the turret to a nozzle rotatably supported on the second tool mount; and The air connection device is a connecting body having a cylinder chamber connected to the compressed air source and installed at the same position as the processing position; a piston arranged reciprocably within the cylinder chamber; a rod extending from the piston toward the turret; a first air connection portion disposed at the tip end of the rod; a piston passage passing through the rod and the piston; an elastic body disposed in the connection body and biasing the piston in a direction to retract the rod; a second air connection portion disposed on the turret, the second air connection portion being connected to the first air connection portion when the first tool mounting portion is located at the machining position and the compressed air is supplied to the cylinder chamber; a turret air supply passage connecting the second air connection portion and the first tool mounting portion; and the turret has a third tool mounting portion to which an air blow nozzle that ejects dry air can be attached, a dry air source for supplying dry air; a nozzle rotation shaft disposed inside the turret, the nozzle rotation shaft having a first rotation connection portion at an end portion facing the third tool mounting portion in the processing position; a third spindle to which the air blow nozzle can be coupled and which is rotatably supported by the third tool mounting portion, the third spindle having a third rotary connection portion which is connected to the first rotary connection portion when the third tool mounting portion is in the processing position; and The air connection device is a connecting plate disposed at the tip of the rod; a fifth air connection portion disposed on the connecting plate and connected to the dry air source; a sixth air connection portion disposed on the third tool mounting portion, the sixth air connection portion being connected to the fifth air connection portion when the third tool mounting portion is located at the machining position and the compressed air is supplied to the cylinder chamber; a turret drying air passage connecting the third main shaft and the sixth air connection portion; Further comprising: Turret stand.

10. The connecting body has a dry air inlet chamber extending parallel to the rod, the air connection device further includes a dry air connection pipe connected to the fifth air connection part, extending from the connecting plate in parallel with the rod, and arranged to be able to reciprocate within the dry air inflow chamber.

10. The turret base of claim 9.

11. an exhaust section that exhausts the compressed air from the first tool attachment section, The air connection device is a third air connection portion disposed on the connecting plate and connected to the exhaust portion; a fourth air connection portion disposed on the turret, the fourth air connection portion being connected to the third air connection portion when the first tool mounting portion is located at the processing position and the first air connection portion is connected to the second air connection portion, and being separated from the third air connection portion when the first air connection portion is separated from the second air connection portion; a turret exhaust passage connecting the first tool mounting portion and the fourth air connection portion; The turret base of claim 9 further comprising:

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