TWI476067B - Automatic tool changer of processing machine - Google Patents

Description

Automatic tool changer of processing machine

The invention relates to an automatic tool changing structure of a processing machine, in particular to an automatic tool changing structure for automatically changing a tool by a tool changing assembly on a small processing machine.

At present, the computer numerical control (CNC) type processing machine is an indispensable equipment in the automatic manufacturing manufacturing industry. Because of the overall automation design requirements, the processing machine has automatic tool setting, tool change and automatic tool return. Function, however, the small machine is not easy to change the tool [CNC tool] on the cutter head, so it is necessary to improve.

At present, the automatic tool changer of the conventional processing machine has the "automatic tool change system of the cutting machine" of the Republic of China New Patent Publication No. M383464, including a base, a spindle, a tool changer arm, and a first transmission. Group with a second transmission set. Wherein, the main shaft is rotatably mounted on the base, and one of the spindles is reciprocally movable along the base; the changer arm is coupled to one end of the main shaft, and the reciprocating movement of the main shaft a position is changed between a position and a second position; the first transmission set has a sleeve to provide a spindle through which the spindle can be linearly moved, and a first power source drives the sleeve to rotate by a belt, and the rotating sleeve is synchronized The spindle is driven to rotate; the second transmission group includes a propulsion member coupled to the main shaft, and a second power source for driving the propulsion member to linearly reciprocate the main shaft relative to the sleeve.

In addition, as in the Republic of China New Patent Publication No. 330453, "Processing Machine Automatic Tool Changer", which has a power source, a body and an automatic tool changer fixed to the body, the automatic tool changer includes: a tool changing device, the tool changing device is fixed to the body, which can generate a grasping knife, a drawing knife, a tool changing, a knife insertion and a homing action; a rotating device is fixed to a driving shaft and is replaced with the same The knife device and a swing arm device are coupled to each other, the rotating device includes a first and second rotating device, wherein the first rotating device is configured to cause the swing arm device to reciprocate, and the second rotating device The utility model is configured to cause the tool changing device to reciprocate to perform the grasping, tool changing and homing operations; and the swing arm device, wherein the middle portion is pivotally connected to the body, and the swing arm device is first The end portion and the second end portion are respectively pivotally connected to the first rotating device and the tool changing device, so that the swing arm device can smoothly reciprocate and swing according to the first rotating device, and the tool changing device can be smoothly Perform the drawing and inserting .

The technical contents disclosed in the above-mentioned "automatic tool change system for cutting machine" are as follows: the tool changer arm realizes the action of rotary tool change and axial movement positioning with the rotation or movement of the spindle, but it is not disclosed. The technical characteristics of the cutter are obtained by using the rotary cutter seat and the clamping cylinder to clamp the cutter.

The technical contents disclosed in the above-mentioned conventional "automatic tool change mechanism of processing machine" are as follows: by the rotation of the hobbing cam, the driven roller group connected with the hobbing cam can drive the bolt groove and the slot shaft. Rotating left and right reciprocally, 俾 to perform the action of grasping, changing, and homing, and its structure is more complicated.

Therefore, in order to improve the disadvantage that the above-mentioned processing machine cannot easily change the tool, the inventors have devoted themselves to research and developed an automatic tool changing structure of the processing machine. On a working platform, the system comprises: a body; a power source, on the seat body, and a pivot seat is connected upwardly, the pivot seat is pivotally connected with a clamping arm, and the clamping arm comprises a clamping portion a holder of a ring-shaped turntable, wherein the holder is connected to a first transmission mechanism through a linkage rod, the holder includes a plurality of storage spaces, and the holder is opposite to the One side of the storage space has a cutter carrying portion; a second transmission mechanism is disposed on the base body and is connected with a clip set, the clip set is connected to the storage space; at least one clamp is respectively inserted In the storage space of the aforementioned tool holder; by the rotation of the tool holder, and the storage space is communicated with the clip group, the clip group is clamped to the clamp, and the clamp arm is borrowed The horizontal swing causes the clamp arm to grip the clamp, and the clamp arm is reciprocally rotated to make the clamp for use by the working platform.

Further, the seat system extends upwardly with a fixing seat and communicates with the storage space and the clip group.

The first transmission mechanism is a Geneva mechanism, and includes a first turntable having a bump and a second turntable having an eight-slot, and the bump is engaged by rotating the first turntable. a slot to drive the second turntable to rotate one-eighth of a turn.

Wherein, the second transmission mechanism is a pressure cylinder, and the clip group is connected by a pressing rod, the clip group includes three sheets, one of which has a hole. An elastic member and a convex bead are disposed in the hole, and the elastic member abuts the convex bead.

Wherein, the clamp is provided with a resisting portion, the first side of the clamp is provided with two first through holes, a groove is arranged in the first perforated ring, and a second through hole is formed at a bottom end of the clamp.

Wherein, the clamping portion of the clamping arm is C-shaped, the clamping portion comprises a first side opening less than 180 degrees, and the inner edge of the clamping portion is provided with a clamping bearing portion.

The storage space is C-shaped and includes a second side opening, and the second side opening is less than 180 degrees.

The fixing seat includes a third side opening, the third side opening is less than 180 degrees, and the third side opening is in communication with the storage space and the clip group.

The invention has the following advantages:

1. In the operation of the present invention, the clip mechanism is driven to move axially by the second transmission device, so that the clamp is located at a position where the clamp arm can be gripped, and the operation stroke is short. Moreover, the machine required for the invention has a small volume, that is, the invention has the advantages of simple operation stroke and no space occupation.

2. The present invention is mainly used in an automatic tool changer structure of a small-sized processing machine, so that it is possible to improve the structure in which there is no automatic tool change on a small-sized machine.

3. The invention can mainly perform tool change quickly according to different processing conditions.

4. The clip of the present invention is provided with a resilient member abutting a bead to further secure the cutter when it is moved up and down.

5. The first transmission mechanism of the present invention uses the Geneva mechanism, so that one of the tools can be selected at a time when the tool is changed, and the quick replacement can be achieved more conventionally.

(1) ‧ ‧ ‧ body

(2) ‧‧‧Power source

(21) ‧ ‧ squat

(22) ‧ ‧ clip arm

(221)‧‧‧Clamping Department

(2211)‧‧‧ first side opening

(2212)‧‧‧Clamping bearing

(3)‧‧‧Tool holder

(31) ‧‧‧ storage space

(311)‧‧‧Second side opening

(312)‧‧‧ Sidewall

(313)‧‧‧Tool carrier

(4) ‧‧‧First transmission

(41)‧‧‧First turntable

(411)‧‧‧Bumps

(42)‧‧‧Second turntable

(421)‧‧‧Slots

(43)‧‧‧ linkage rod

(5) ‧‧‧second transmission mechanism

(51)‧‧‧ Clip group

(511)‧‧‧

(5111) ‧‧‧ holes

(5112) ‧‧‧Flexible components

(5113) ‧‧‧ 珠珠

(52)‧‧‧Press

(6) ‧‧‧ fixture

(61) ‧‧‧Resistance

(62)‧‧‧First perforation

(63) ‧‧‧ Groove

(64)‧‧‧Second perforation

(7) ‧ ‧ fixed seat

(71) ‧‧‧ third side opening

(A) ‧‧‧Processing body

The first figure is a schematic view of the invention combined with a working platform on a processing machine body.

The second figure is a schematic view of the structure of the present invention.

The third figure is a schematic view of the construction of the tool of the present invention.

The fourth figure is a schematic view showing the construction of the clamp set of the press cylinder connected by a pressing rod.

The fifth figure is a use state diagram of the fourth figure of the present invention, which shows that the pressure cylinder drives the pressure bar to rise, so that the three clips of the clip group clamp the clamp.

The sixth figure is the first operation diagram of the present invention, which shows that the knife seat rotates one-eighth of a turn, and the pneumatic cylinder drives the linkage rod to rise and rotates the clamp arm.

The seventh figure is a schematic diagram of the second operation of the present invention, which shows that the height of the resisting portion of the cutter is higher than the clamping portion of the clamp arm.

The eighth figure is a schematic diagram of the third operation of the present invention, which shows that the pneumatic cylinder drives the linkage rod to slightly lower and the clamp arm clamps the cutter.

The ninth figure is a fourth operation diagram of the present invention, which illustrates that the clamping arm is used for working the working platform of the processing body after the tool is clamped.

The tenth figure is a schematic structural view of the first transmission mechanism of the present invention, which shows that the first turntable rotates one turn to drive the second turntable to rotate one eighth of a turn.

First, referring to the first figure, the present invention is provided on a working platform of a processing body (A).

However, with regard to the technical features and the enhancement of the present invention, the preferred embodiments of the following drawings can be clearly presented. Referring to the second, third and fourth figures, the system includes: a body (1) ).

a power source (2), on the base body (1), and a pivot seat (21) connected to the seat body (1), the pivot seat (21) pivotally connected with a clamp arm (22), The clamping arm (22) comprises a clamping portion (221), and the clamping portion (221) of the clamping arm (22) is C-shaped, and the clamping portion (221) comprises a first side opening (2211) is less than 180 degrees, and a clamping bearing portion (2212) is disposed at an inner edge of the clamping portion (221).

a seat (3) of a ring type turntable, on the seat body (1), the knife seat (3) is connected with a first transmission mechanism (4), the tool holder (3) comprising a plurality of a C-shaped storage space (31), and the C-shaped storage space (31) respectively includes a second side opening (311), wherein the second side opening (311) is less than 180 degrees, the knife The seat (3) has a cutter carrying portion (313) with respect to one side wall (312) of the storage space (31), and the first transmission mechanism (4) is a Geneva mechanism and is transmitted through a linkage rod (43). One end is connected to the knife seat (3), and the other end of the linkage rod (43) is connected to the first transmission mechanism (4) [Geneva mechanism].

a second transmission mechanism (3), on the base body (1), and connected with a clip group (51), the clip group (51) is connected to the storage space (31), The second transmission mechanism (5) is a pressure cylinder, and a pressure rod (52) is driven by the pressure cylinder to raise or lower the clip group (51), and the clip group (51) There is a three-piece body (511), one of the sheets (511) is provided with a hole (5111), and an elastic element (5112) and a convex bead (5113) are disposed in the hole (5111), and the elastic element (5112) abutting the bead (5113), wherein the elastic element (5112) is a spring [as shown in the fifth figure].

At least one clamp (6) is respectively inserted into the storage space (31) of the aforementioned tool holder (3), and each clamp (6) can be equipped with a cutter [not shown], wherein the cutter is The CNC cutter can be a grinding knife, a cutting knife or a washing knife, etc. Further, the clamp (6) is provided with a resisting portion (61), and the side of the clamp (6) is provided with two first through holes (62). A groove (63) is disposed between the first through hole (62), and a second hole (64) is disposed at a bottom end of the clamp (6).

a fixing base (7) extending upward from the base body (1) and communicating with the storage space (31) and the clip group (51), the fixing base (7) including a first a three-side opening (71) having a third side opening (71) of less than 180 degrees and communicating with the storage space (31) and the clip group (51), the third side opening (71) Mainly used for limit, to prevent the clamp from being easily displaced when moving.

Furthermore, referring to the fourth and fifth figures during operation, the second transmission mechanism (5) of the present invention is a pneumatic cylinder. When the clip group (51) clamps the clamp (6), The clamp group (51) is raised or lowered by the pneumatic cylinder (52), and one of the clips (51) is provided with a hole (5111) in the hole (5111). An elastic member (5112) and a convex bead (5113) are disposed, and the elastic member (5112) abuts the convex bead (5113), wherein the elastic member (5112) is a spring, and the main purpose is to make The pneumatic cylinder drives the pressure rod (52) to make the clamp When the sheet group (51) is raised or lowered, the jig (6) can be fixed without being easily displaced, thereby increasing stability.

Furthermore, as shown in the sixth to ninth figures, when the jig (6) is to be gripped, the holder (3) with the ring type turntable rotates the jig (6) already stored in the storage space (31). To the clip group (51), the presser bar (52) is moved by the pneumatic cylinder to raise the clip group (51), and the groove (63) of the inner edge of the clamp (6) is further clamped to the elastic The component (5112) and the bead (5113) [as shown in the fifth figure], thereby reaching the fixing jig (6) between the clip sets (51), and the pressing rod (52) continues to rise and the clamp (6) The resisting portion (61) exceeds the level of the clamp arm (22), and the clamp arm (22) is horizontally swung at an angle of about a right angle, and the pressure rod (52) is slightly lowered to make the clamp arm (22) The clamping portion (221) can clamp the clamp (6) so that the abutting portion (61) of the clamp (6) can resist the clamping bearing portion (2212), and is not easily displaced, and the clamping arm ( 22) Reciprocating the pendulum for use on the working platform of the processing body (A) [as shown in the first figure].

It should be further noted that when other tools are to be replaced, the clamp arm (22) has clamped the clamp (6) and horizontally swings an angle of about a right angle to the storage space (31) and the clip group. (51) in the position of communication, at this time, the storage space (31) does not store any jig (6), so the aforementioned jig (6) can be stored in the storage space (31) and on the jig (6) A groove (63) is arranged between the two first perforations (62), so that the clamp (6) pushes against the clamp (6) when it is lowered and placed in the storage space (31). a bead (5113) and a spring, which in turn can secure the clamp (6) in the storage space (31); further rotate the seat (3) with the ring type turntable to another tool that stores different functions Above the clip group (51), and push the knife up by the pneumatic cylinder, and then advance After the clamp arm (22) is gripped by the cutter in one step, the angle is reciprocated horizontally at an angle of about a right angle to complete the automatic tool change action [as in the foregoing operation mode].

Furthermore, referring to the tenth figure, the first transmission mechanism (4) is further described as a Geneva mechanism, comprising a first turntable (41) having a bump (411) and an eight-slot ( The second turntable (42) of the 421) is rotated by the first turntable (41) to drive the bumps (411) to respectively engage and move the opposite slots (421) to drive the second turntable (42). Rotating one-eighth of a turn causes the tool holder (3) to rotate one-eighth of a turn at a time, so that one storage space (31) can be rotated at a time to communicate with the clip group (51).

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications according to the scope of the present invention and the novel description are all of the present invention. Covered by the scope of patents.

(1) ‧ ‧ ‧ body

(2) ‧‧‧Power source

(21) ‧ ‧ squat

(22) ‧ ‧ clip arm

(221)‧‧‧Clamping Department

(2211)‧‧‧ first side opening

(2212)‧‧‧Clamping bearing

(3)‧‧‧Tool holder

(31) ‧‧‧ storage space

(311)‧‧‧Second side opening

(312)‧‧‧ Sidewall

(313)‧‧‧Tool carrier

(4) ‧‧‧First transmission

(43)‧‧‧ linkage rod

(5) ‧‧‧second transmission mechanism

(51)‧‧‧ Clip group

(511)‧‧‧

(5111) ‧‧‧ holes

(5113) ‧‧‧ 珠珠

(7) ‧ ‧ fixed seat

(71) ‧‧‧ third side opening

Claims (8)

An automatic tool changing structure of a processing machine is disposed on a working platform, which comprises: a body; a power source on the seat body and connected upwardly with a pivot seat, the pivot seat pivotally connected with a clip An arm, the clamping arm includes a clamping portion; a holder having a ring-shaped turntable, wherein the holder is connected to a first transmission mechanism through a linkage rod, the holder includes a plurality of a storage space, the tool holder has a cutter carrying portion with respect to one side wall of the storage space; a second transmission mechanism, and a clip group is connected to the base body, and the second transmission mechanism is a drive base The clip group is axially moved, and the clip group is in communication with the storage space; at least one clamp is respectively inserted into the storage space of the cutter seat; by the rotation of the cutter seat, and the storage is performed a space is communicated with the clip group, and the second transmission mechanism drives the clip group to move axially, and the clamp is clamped, and the clamp arm is horizontally swung by the clamp arm to clamp the clamp arm a clamp, the clamp arm is reciprocatingly rotated to provide the clamp for Said work platform. The automatic tool changing structure of the processing machine according to claim 1, wherein the seat system extends upwardly with a fixing seat and communicates with the storage space and the clip group. An automatic tool changer of a processing machine according to claim 1 of the patent application, wherein The first transmission mechanism is a Geneva mechanism, and includes a first turntable having a bump and a second turntable having an eight-slot, and the bump is engaged by rotating the first turntable. a slot to drive the second turntable to rotate one-eighth of a turn. The automatic tool changer of the processing machine of claim 1, wherein the second transmission mechanism is a pressure cylinder, and the clip group is connected by a pressing rod, the clip group The invention comprises a three-piece body, wherein one of the sheets is provided with a hole, and an elastic element and a convex bead are arranged in the hole, and the elastic element abuts the convex bead. The automatic tool changer of the processing machine of claim 1, wherein the clamp is provided with a resisting portion, the clamp is provided with two first perforations on the side, and the first perforated ring is provided with a a groove, and the bottom end of the clamp is provided with a second perforation. The automatic tool changer of the processing machine of the first aspect of the invention, wherein the clamping portion of the clamping arm is C-shaped, and the clamping portion comprises a first side opening of less than 180 degrees. A clamping bearing portion is disposed on the inner edge of the clamping portion. The automatic tool changer of the processing machine of claim 1, wherein the storage space is C-shaped and includes a second side opening, the second side opening being less than 180 degrees. The automatic tool changer of the processing machine of claim 2, wherein the fixing base comprises a third side opening, the third side opening is less than 180 degrees, and the third side opening is The storage space and the clip group are in communication.