TWM456246U - Graduation rotation and positioning mechanism of rotation working device for processing machine - Google Patents

Description

Indexing rotary positioning mechanism of processing machine rotating working device

In particular, the present invention provides a embossing path on the locating portion of the yoke portion of the yoke portion of the yoke and the yoke portion of the yoke portion, so as to increase the positioning piece. The friction between the abutting portion and the stop portion of the base can ensure the positioning of the rotating shaft to improve the machining accuracy of the rotary rotating positioning mechanism of the rotary working device of the processing machine.

Nowadays, the processing machine has been developed from three-axis machining to five-axis machining in response to different machining requirements, such as machining of complex curved surfaces. Please refer to Figure 5 for a five-axis machining machine. 10, the pedestal 11 of the five-axis processing machine 10 can be driven for XY axial displacement, while the machining spindle 12 can be driven for Z-axis displacement, and the pedestal 11 is provided with a table 13 and is fourth. The shaft rotating working device 14 drives the table 13 to perform an X-axis indexing rotation for the tool of the machining spindle 12 to perform a fourth axial machining operation on the workpiece, and the fifth shaft rotation working device 15 drives the table. 13 is a Z-axis rotation operation for machining the spindle 12 to perform a fifth axial machining operation on the workpiece, so that the five-axis machining machine 10 can perform XYZ axial and fourth and fifth axial machining operations. Generally, the fourth-axis rotating working device 14 or the fifth-axis rotating working device 15 is matched with the processing spindle 12 to perform different types of processing operations, and has different driving modes; the fourth-axis rotating working device 14 is taken as an example, generally Fourth axis rotary workwear Set 14 with worm gear set for precision The driving table 13 is indexed and rotated. However, the driving method of the worm and worm wheel group still has the following disadvantages in use:

1. Although the worm worm wheel group can accurately drive the table 13 for indexing rotation, when the workpiece is placed on the table 13, the weight of the workpiece causes the rotation of the table 13, thereby affecting the processing accuracy.

2. Since the worm and worm wheel set has a backlash, the table 13 is not reliably positioned, and vibration is generated during the processing operation, thereby affecting the processing accuracy.

In view of this, the creator has been engaged in research and development and production experience of related industries for many years, and has conducted in-depth research on the problems currently faced. After long-term efforts and research, he has finally developed a degree of rotation of a rotary working device of a processing machine. Positioning institutions, and to improve the shortcomings of the practice, this is the design purpose of this creation.

The purpose of the present invention is to provide an indexing rotary positioning mechanism for a rotary working device of a processing machine, which is provided with a rotating shaft pivoted to a base having a stopping portion, and drives the rotating shaft to perform an indexing rotation operation by a rotating driving structure. Further, a positioning piece is disposed on the outside of the rotating shaft, and the positioning piece is provided with an abutting portion corresponding to the stopping portion of the base, and a rough embossing road is arranged on the abutting portion of the positioning piece, and a pressing group is provided. a pushing member is provided for driving the urging and positioning piece, so that the abutting portion of the positioning piece is pressed against the stopping portion of the base to position the rotating shaft; thereby, the stopping portion and the pressing group of the base When the pushing member clamps the abutting portion of the positioning piece, the embossing path on the upper portion of the positioning piece is used to increase the friction between the abutting portion of the positioning piece and the stopping portion of the base, thereby ensuring Positioning the shaft to achieve the practical purpose of improving machining accuracy.

The second object of the present invention is to provide an indexing rotary positioning mechanism for a rotating working device of a processing machine, which is characterized in that the stopping portion of the base and the pushing member of the abutting group are clamped to the abutting portion of the positioning piece, and the positioning piece is utilized. The rough grain of the abutting portion increases the friction between the abutting portion of the positioning piece and the stopping portion of the base, thereby ensuring the positioning of the rotating shaft and preventing vibration during the processing, thereby achieving the practical purpose of improving the machining accuracy. .

[study]

10‧‧‧5-axis processing machine

11‧‧‧ pedestal

12‧‧‧Machining spindle

13‧‧‧Workbench

14‧‧‧4th axis rotary working device

15‧‧‧5th axis rotary working device

[this creation]

20‧‧‧ machine base

201‧‧‧Axis hole

202‧‧‧first capacity

203‧‧‧ bearing

204‧‧‧ side cover

205‧‧‧Second cavity

206‧‧‧stops

21‧‧‧ shaft

211‧‧‧ seat board

212‧‧‧ worm gear

213‧‧‧ worm

22‧‧‧ Positioning film

221‧‧‧Department of Arrival

23‧‧‧Relief group

231‧‧‧Pushing pieces

232‧‧‧ Pressure Department

30‧‧‧Processing machine

31‧‧‧Workbench

32‧‧‧Machining spindle

Figure 1: Schematic diagram of a conventional five-axis machining machine.

Figure 2: Schematic diagram of the structure of the creation.

Figure 3: Schematic diagram of the structure of this creation positioning film.

Figure 4: Schematic diagram of the creation of the creation on the processing machine.

Figure 5: This action is driven by the action of indexing rotation.

Figure 6: Schematic diagram of the action of positioning the hinge.

Fig. 7 is an enlarged schematic view of a portion of Fig. 6A.

Figure 8: Schematic diagram of the action of releasing the positioning reel in this creation.

Figure 9 is an enlarged view of the portion of Figure 8B.

Referring to Figures 2 and 3, the creation includes an organic base 20, a rotating shaft 21, a positioning piece 22, and an anti-pushing group 23; the inside of the base 20 is provided with a shaft hole 201, and one end of the shaft hole 201 A first receiving slot 202 is provided for mounting the bearing 203, and a side cover 204 is disposed on the first receiving slot 202 for covering the limiting bearing 203. The other end of the shaft hole 201 is provided with a second capacity. Slot 205, And a stopping portion 206 is disposed at a bottom surface of the second receiving groove 205; a rotating shaft 21 is disposed in the shaft hole 201 of the base 20, and a rotating shaft 21 is disposed on the bearing 203 at one end of the rotating shaft 21 The rotating plate 211 is provided to connect the table for receiving the workpiece, and the rotating shaft 21 is driven to perform the indexing rotation in a rotating driving structure. In this embodiment, the rotating driving structure can be a a worm gear set, and a worm wheel 212 is fixed on the outside of the rotating shaft 21, and a worm 213 driven by the power source for the indexing rotation is driven, and the worm gear 213 is engaged to drive the worm wheel 212 for indexing rotation, and then The driving shaft 21, the seat plate 211 and the table are rotated by an indexing operation; and the positioning piece 22 is fixed to the outer portion of the rotating shaft 21, and the positioning piece 22 is provided with an abutting portion 221 corresponding to the stopping portion 206 of the base 20. The aligning portion 221 of the positioning piece 22 can be pressed against the stopping portion 206 of the base 20 to position the rotating shaft 21; wherein the positioning piece 22 is an elastic circular piece, so that the positioning piece The abutting portion 221 of the elastic member 22 is elastically pressed against the stopping portion 206 of the contact base 20, and the positioning piece 22 is resisted. The 221 is provided with a rough embossing road to increase the friction between the abutting portion 221 of the positioning piece 22 and the stopping portion 206 of the base 20; and the second receiving groove 205 of the base 20 is provided with a pushing force. The urging member 23 is provided with a pushing member 231, and the pushing member 231 is provided with a pressing portion 232 corresponding to the abutting portion 221 of the positioning piece 22, and the pushing member 231 is driven to be displaced toward the positioning piece 22. The pressing piece 232 of the pushing member 231 is pressed against the positioning piece 22, and the abutting portion 221 of the positioning piece 22 is pressed against the stopping portion 206 of the base 20 to position the rotating shaft 21; in this embodiment, the receiving portion The push group 23 is a pressure cylinder, and the pusher 231 It is the piston of the cylinder.

Please refer to Figures 4 and 5, the creation system can be installed on a processing machine 30, and as a fourth or fifth axis rotating working device, as a fourth axis rotating working device, for example. The seat plate 211 of the rotating shaft 21 is connected to the table 31 for receiving the workpiece, and the rotating shaft 21 and the table 31 are driven to perform the indexing rotation, and the tool is matched with the tool 32 to perform the fourth axial direction on the workpiece. When the driving shaft 21 is rotated by the indexing rotation, the worm gear 213 is driven by the power source to engage the worm wheel 212 of the transmission shaft 21, and the rotating shaft 21 is rotated by the rotation, and the table and the workpiece are driven to perform the indexing rotation. Referring to FIGS. 6 and 7, after the driving shaft 21 is indexed and rotated to a predetermined angle, the driving of the worm 213 is stopped, and then the pushing member 231 of the urging group 23 is displaced to the positioning piece 22, and the pushing member 231 is displaced. The pressing portion 232 pushes against the positioning piece 22, and the abutting portion 221 of the positioning piece 22 is elastically pressed against the stopping portion 206 of the base 20, and the stopping portion 206 of the base 20 and the pressing group 23 are shifted. The piece 231 clamps the abutting portion 221 of the positioning piece 22, and the positioning piece 22 is used to resist The rough embossing road 221 is used to increase the friction between the abutting portion 221 of the positioning piece 22 and the stopping portion 206 of the base 20 to ensure the positioning of the rotating shaft 21, and the work can be prevented when the machining operation is performed. The table 31 rotates or vibrates to achieve practical benefits of improving machining accuracy.

Referring to FIGS. 8 and 9 , when the positioning shaft 21 is released, the pushing member 231 of the driving group 23 is reset, and the pressing portion 232 of the pushing member 231 is disengaged from the pushing positioning piece 22 . The abutting portion 221 of the positioning piece 22 is reset by its own elastic force, and is released from the contact of the contact base 20. The portion 206, in order to release the positioning shaft 21, can drive the worm 213 to engage the worm wheel 212 of the transmission shaft 21, and rotate the shaft 21 to rotate, and drive the table and the workpiece to perform the indexing rotation to perform another processing stroke. .

Therefore, the creation system uses the stopper portion of the base and the pressing member of the abutting group to clamp the abutting portion of the positioning piece, thereby ensuring the positioning of the rotating shaft and preventing the rotation and vibration during the processing, thereby improving the machining accuracy. Practical benefits.

20‧‧‧ machine base

201‧‧‧Axis hole

202‧‧‧first capacity

203‧‧‧ bearing

204‧‧‧ side cover

205‧‧‧Second cavity

206‧‧‧stops

21‧‧‧ shaft

211‧‧‧ seat board

212‧‧‧ Turbine

213‧‧‧ worm

22‧‧‧ Positioning film

221‧‧‧Department of Arrival

23‧‧‧Relief group

231‧‧‧Pushing pieces

232‧‧‧ Pressure Department

Claims (10)

The indexing rotary positioning mechanism of the rotary working device of the processing machine comprises: a base: a stop portion; a rotating shaft: pivoted on the base, and driven by a rotary drive structure for indexing rotation; positioning piece The locating piece is provided on the outside of the rotating shaft, and the positioning piece is provided with an abutting portion corresponding to the stopping portion of the base, and a rough embossing road is arranged on the urging portion; the urging group is provided with a pushing piece. The driving piece is driven against the positioning piece, and the abutting portion of the positioning piece is pressed against the stopping portion of the base to position the rotating shaft. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the first aspect of the patent application, wherein the inner portion of the base is provided with a shaft hole for piercing the rotating shaft. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the second aspect of the patent application, wherein the first hole of the shaft hole of the machine base is provided with a first receiving groove, and the first receiving groove is provided for mounting The bearing that pivots the shaft. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the third aspect of the patent application, wherein the first housing of the base is provided with a side cover for covering the limit bearing. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the second aspect of the patent application, wherein the shaft hole of the base is provided with a second receiving groove at the other end, and at the bottom surface of the second receiving groove There is a stop. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to claim 1, wherein one end of the rotating shaft is provided with a rotating and rotating seat plate for connecting a work table for holding the workpiece. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to claim 1, wherein the rotary drive structure of the rotary shaft is a worm gear set. The worm wheel is disposed outside the rotating shaft, and the worm is driven by the power source for the indexing rotation, and the worm gear is meshed and driven to perform the indexing rotation, thereby driving the rotating shaft to perform the indexing rotation. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the first aspect of the patent application, wherein the positioning piece is a circular piece with elasticity. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the first aspect of the invention, wherein the pushing member of the anti-pushing group is provided with a pressing portion corresponding to the abutting portion of the positioning piece. The indexing rotary positioning mechanism of the rotary working device of the processing machine according to the first aspect of the patent application, wherein the pressing component is a pressure cylinder, and the pushing member is a piston of the pressure cylinder.