TWI599437B - Processing machine indexing rotary device - Google Patents

Description

Machining machine indexing rotation device

In particular, the present invention provides a positioning rotating device that utilizes a rigid positioning plate of a positioning mechanism to not only stably position the rotating shaft, but also effectively improve the overall rigidity, and can ensure the machining accuracy of the processing machine.

Nowadays, the processing machine has evolved from three-axis machining to five-axis machining to meet various processing requirements. Please refer to Figure 1, which is the Taiwanese publication No. M456246 "Indexing rotary positioning mechanism for processing machine rotary working device" The new patent case is provided with a shaft hole 101 in the base 10, a first receiving groove 102 for mounting the bearing 103 at the front end of the shaft hole 101, and a stopping portion at the rear end. a second housing 104 of the first shaft 104; a shaft 11 is mounted on the shaft hole 101 of the base 10, and a rotary driving structure 12 is coupled to one end of the rotating shaft 11 for driving the rotating shaft 11 to rotate. The other end of the rotating shaft 11 is connected with a pedestal 15 for receiving the processing member, and a positioning piece 13 is fixed on the outside of the rotating shaft 11, and the positioning piece 13 is an elastic circular piece, and the positioning is performed. The sheet 13 is provided with an abutting portion 131 corresponding to the stopping portion 105 of the base 10, and the second receiving groove 104 of the base 10 is provided with an anti-pushing group 14 which is driven. The pushing member 141 is displaced forward, and the pressing member 141 is provided with a pressing portion 142 corresponding to the abutting portion 131 of the positioning piece 13; As shown in FIG. 2, when the driving member 141 forward displacement of the transition, i.e. to press the pusher portion 141 of the latch 142 pushes against the constant The abutting portion 131 of the positioning piece 13 is elastically deformed, and the abutting portion 131 of the positioning piece 13 is pressed against the blocking portion 105 of the base 10 to be compressed by the pushing member 141. The portion 142 and the blocking portion 105 of the base 10 sandwich the abutting portion 131 of the positioning piece 13 to position the rotating shaft 11; however, the rotating working device still has the following disadvantages in use:

1. After the rotating shaft 11 is positioned and indexed, the workpiece of the pedestal 15 is cut by the cutting tool on the processing machine. Since the rotating shaft 11 is erected in the shaft hole 101 of the base 10 by the bearing 103, the bearing 103 itself is There is a bearing gap, so the overall rigidity is not good, which causes the shifting phenomenon of the rotating shaft 11 when the force is applied, and affects the machining accuracy of the workpiece. The prior art is the pressing portion 142 of the pushing member 141 and the base 10 When the stopper portion 105 clamps the abutting portion 131 of the positioning piece 13, the pedestal 15 and the rotating shaft 11 can be coupled to the base 10 by the positioning piece 13, however, since the positioning piece 13 is a sheet-like elastic circle The sheet body makes the positioning piece 13 unable to provide a stable rigid joining effect, so that the overall rigidity is still insufficiently insufficient, that is, the rotating shaft 11 cannot be stably positioned, and the processing precision is easily affected during the processing.

2. When the pressing portion 142 of the pushing member 141 and the stopping portion 105 of the base 10 sandwich the abutting portion 131 of the positioning piece 13, the positioning piece 13 is elastically deformed, and after long-term use, the positioning piece 13 is used. The elastic fatigue phenomenon is easily generated. When the pushing member 141 of the resisting group 14 is disengaged from the positioning piece 13, the positioning piece 13 will not be able to return to the original shape, and when the driving shaft 11 rotates, the abutting portion 131 of the positioning piece 13 The stopper portion 105 of the base 10 is rubbed against each other to interfere with the rotation of the rotating shaft 11, thereby causing a loss of rotational power.

3. When the abutting portion 131 of the positioning piece 13 and the stopper portion 10 of the base 10 occur 5, after rubbing against each other, the abutting portion 131 of the positioning piece 13 and the blocking portion 105 of the base 10 will be worn out, and when the abutting portion 131 of the positioning piece 13 is clamped, the rotational angle position is easily caused. The deviation of the positioning, which in turn affects the machining accuracy.

In view of this, the inventor 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 sorting and rotating device for processing machines. Effectively improving the shortcomings of the prior art, this is the design tenet of the present invention.

A first object of the present invention is to provide an indexing and rotating device for a processing machine, which is provided with a rotating shaft driven by a power source for rotation in a pedestal, and a positioning mechanism is fixed on the rotating shaft to fix the rigidity. And a pressing member for driving the first side of the positioning plate, and an abutting ring surface for abutting against the second side of the positioning plate, and the pressing member and the abutting member The torus ring clamps the positioning plate to position the rotating shaft; thereby, the rigid positioning plate of the positioning mechanism not only can stably position the rotating shaft, but also can rigidly connect the rotating shaft with the base, thereby effectively improving the overall rigidity to ensure The benefits of machining accuracy during processing.

An object of the present invention is to provide an indexing and rotating device for a processing machine, wherein an air floating mechanism is provided with an air supply hole for outputting gas on an abutting ring surface of the base, so that the positioning plate of the positioning mechanism and the positioning plate The damper ring surface of the pedestal is slightly separated by air floatation to avoid interference with the indexing rotation of the rotating shaft, thereby achieving the benefit of preventing power loss.

A third object of the present invention is to provide an indexing and rotating device for a processing machine, wherein the air floating mechanism is provided with an output gas on an abutting ring surface of the base The air hole is such that the positioning plate of the positioning mechanism and the abutting abutment surface of the base are slightly separated by air floatation, so as to prevent abrasion of the locating disk and the abutting ring surface of the base, and can be driven by the power source. The precise rotation of the rotating shaft is used to achieve the benefit of ensuring the accuracy of the indexing rotation.

Conventional part:

10‧‧‧ Pedestal

101‧‧‧ shaft hole

102‧‧‧first slot

103‧‧‧ bearing

104‧‧‧Second cavity

105‧‧‧stops

11‧‧‧ shaft

12‧‧‧Rotary drive structure

13‧‧‧ Positioning film

131‧‧‧Department of Arrival

14‧‧‧Relief group

141‧‧‧Pushing pieces

142‧‧‧ Pressure Department

15‧‧‧ pedestal

Part of the invention:

20‧‧‧ Pedestal

201‧‧‧ 容部

202‧‧‧ arrived at the torus

203‧‧‧ Ring groove

204‧‧‧First line

205‧‧‧ Air supply holes

206‧‧‧Second line

21‧‧‧ bearing

22‧‧‧ Pressure parts

30‧‧‧ shaft

301‧‧ ‧ class torus

31‧‧‧ pedestal

32‧‧‧Motor

33‧‧‧ Positioning plate

331‧‧ Inner Ministry

332‧‧‧Outer Rings

333‧‧‧Interval

34‧‧‧Bolts

Figure 1: Schematic diagram of the action of Taiwan Patent No. M456246 (I).

Figure 2: Schematic diagram of the action of Taiwan Patent No. M456246 (2).

Figure 3: Schematic diagram of the structure of the present invention.

Fig. 4 is an enlarged view of a portion A of Fig. 3.

Figure 5: Schematic diagram of the appearance of the positioning disk of the present invention.

Figure 6 is a schematic view of the operation of the present invention when positioning the rotating shaft.

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

Fig. 8 is a schematic view showing the operation of the present invention when the drive shaft is indexed and rotated (1).

Fig. 9 is an enlarged view of a portion C of Fig. 8.

Fig. 10 is a schematic view showing the action of the present invention when the drive shaft is indexed and rotated (2).

As shown in the third, fourth, and fifth embodiments, the indexing and rotating device of the present invention is provided with a receiving portion 201 in a base 20, and a bearing 21 is disposed in the receiving portion 201 for erecting a rotating shaft 30, the front end of the rotating shaft 30 is fixed with a pedestal 31 for connecting a positioning fixture for mounting a working table or a workpiece for processing the workpiece, and driving the rotating shaft 30 and the pedestal 31 for indexing rotation by a power source In this embodiment, The rotating shaft 30 is connected to a power source of the motor 32 in a straight joint manner, and the rotating shaft 30 and the pedestal 31 are driven to rotate by the motor 32. A positioning mechanism is fixed on the rotating shaft 30. The positioning plate 33 is rigid; in the embodiment, the outer surface of the rotating shaft 30 is provided with a stepped surface 301 having a plurality of screw holes, and the positioning plate 33 is provided with an inner ring portion 331 and is disposed at the inner ring portion. 331, the plurality of bolts 34 are extended and locked to the stepped surface 301 of the rotating shaft 30, and the positioning disc 33 is provided with an outer ring portion 332 and an interval connecting the inner ring portion 331 and the outer ring portion 332. a portion 333, wherein the inner ring portion 331 and the outer ring portion 332 of the positioning plate 33 have a suitable thickness, so that the positioning plate 33 has a better rigidity, and the thickness of the spacer portion 333 is slightly smaller than the inner ring portion 331 and The outer ring portion 332 has a thickness such that the outer ring portion 332 of the positioning plate 33 can generate a slight deformation; and the base 20 is mounted with a driving structure that is pressed against the outer ring portion 332 of the positioning plate 33. a side pressing member 22, and an abutting annulus 202 for abutting the second side of the outer ring portion 332 of the positioning plate 33, wherein The second side of the outer ring portion 332 of the disk 33 can be attached to the abutting annulus 202 of the base 20, and when the driving pressure member 22 is pressed against the outer ring portion 332 of the positioning plate 33, The pressing member 22 and the abutting ring surface 202 are clamped to the outer ring portion 332 of the positioning plate 33, so that the rotating shaft 30 can be stably fixed. In the embodiment, the driving structure is provided on the base 20 for installation. The ring groove 203 of the pressure piece 22 is connected to the first line 204 and can be a fluid pressure source of air pressure or oil pressure (not shown in the drawing), and the fluid pressure is generated from the ring groove. The fluid pressure input in 203 pushes the pressure member 22 to displace the pressure member 22 against the first side of the outer ring portion 332 of the positioning plate 33; an air floating mechanism is attached to the ring of the base 20 The surface of the surface 202 is provided with a plurality of air supply holes 205, and the air supply holes 205 are connected to the air pressure source by the second line 206 (pattern The gas supply holes 205 output high-pressure gas, so that the second side surface of the outer ring portion 332 of the positioning plate 33 can be slightly separated from the abutment surface 202 of the base 20 by air flotation. The shaft 30 can be driven by the motor 32 for indexing rotation.

Referring to Figures 6 and 7, the present invention can be matched with a processing machine to serve as an indexing and rotating device for the fourth or fifth axis of the processing machine, and the pedestal 31 at the front end of the rotating shaft 30 is used to drive the workpiece. Indexing rotation of various angular positions to meet various processing requirements; after the motor 32 drives the rotating shaft 30 to perform indexing rotation and rotate to a set position, in order to position the rotating shaft 30 at the set position, it is a fluid pressure source. The fluid pressure input in the annular groove 203 of the base 20 pushes the pressing member 22 to displace the pressing member 22 against the first side of the outer ring portion 332 of the positioning plate 33, and the pressure is pressed. The member 22 and the abutting annulus 202 of the base 20 sandwich the outer ring portion 332 of the positioning plate 33, thereby positioning the rotating shaft 30; thereby, the present invention utilizes the pressing member 22 and the base 20 of the positioning mechanism. The abutting ring 202 clamps the rigid positioning plate 33, so that the rotating shaft 30 can be stably positioned; furthermore, since the positioning plate 33 is thick and rigid, the pressing member 22 and the base 20 of the positioning mechanism are When the abutment ring 202 is clamped to the rigid positioning plate 33, the rigidity can be utilized. The disc 33 rigidly connects the pedestal 31 and the rotating shaft 30 to the pedestal 20, and can greatly increase the rigidity of the whole body, thereby avoiding the deviation phenomenon caused by the bearing gap of the bearing 21 itself when the rotating shaft 30 is subjected to the processing force. Ensure the efficiency of processing accuracy.

Referring to FIGS. 8 and 9, when the driving shaft 30 and the pedestal 31 are indexed and rotated, the air pressure is input to the second line 206 to input high-pressure gas, and the high-pressure gas passes through the second line. 206 is output to each of the air supply holes 205 of the abutment ring surface 202 of the base 20, and is outputted by the air supply holes 205. The high pressure gas is pushed against the second side surface of the outer ring portion 332 of the positioning plate 33, so that the outer ring portion 332 of the positioning plate 33 is slightly deformed, and the outer ring portion 332 of the positioning plate 33 is abutted against the base portion 20. The annulus 202 is slightly separated by air flotation; as shown in FIG. 10, when the outer ring portion 332 of the positioning plate 33 and the abutting annulus 202 of the base 20 are slightly separated by air flotation, The motor 32 drives the rotating shaft 30 to perform indexing rotation; thereby, the present invention utilizes the air floating mechanism to make the outer ring portion 332 of the positioning plate 33 and the abutting annulus 202 of the base 20 are separated by air floatation. When the driving shaft 30 is indexed and rotated, the indexing rotation of the rotating shaft 30 can be avoided, and the positioning disc 33 and the abutting ring surface 202 of the base 20 can be prevented from rubbing against each other to cause wear, and can be driven. The shaft 30 is smooth and precise for indexing rotation, thereby achieving practical benefits of preventing power loss and ensuring accuracy of indexing rotation.

Accordingly, the present invention is a practical and progressive design, but it has not been disclosed that the same products and publications are disclosed, thereby permitting the invention patent application requirements, and applying in accordance with the law.

20‧‧‧ Pedestal

202‧‧‧ arrived at the torus

203‧‧‧ Ring groove

204‧‧‧First line

21‧‧‧ bearing

22‧‧‧ Pressure parts

30‧‧‧ shaft

31‧‧‧ pedestal

32‧‧‧Motor

33‧‧‧ Positioning plate

332‧‧‧Outer Rings

Claims (7)

An indexing rotation device for a processing machine, comprising: a base; a rotating shaft: being erected in the base and driven by a power source for indexing rotation; and a positioning mechanism: fixing the rigidity on the rotating shaft The positioning plate is provided with an inner ring portion, an outer ring portion and a space connecting the inner ring portion and the outer ring portion, and the inner ring portion of the positioning plate is locked on the rotating shaft, The thickness of the spacer is slightly smaller than the thickness of the inner ring portion and the outer ring portion, so that the outer ring portion of the positioning plate can generate a slight deformation, and the base is provided with a ring for driving the outer ring of the positioning plate. a pressing member of the first side of the portion, the base is provided with an abutting annulus for attaching or abutting against the second side of the outer portion of the positioning disc, such that the rotating shaft is rigidly coupled to the base by the positioning disc The air floating mechanism is provided with an air supply hole for outputting gas on the abutting ring surface of the base, so that the outer ring portion of the positioning plate of the positioning mechanism and the abutting ring surface of the base are separated by air floating. The indexing rotary device of the processing machine according to the first aspect of the invention, wherein the base is provided with a receiving portion, and a bearing is disposed in the receiving portion for erecting the rotating shaft. The indexing rotary device of the processing machine according to the first aspect of the invention, wherein the front end of the rotating shaft is fixed with a pedestal. The indexing rotary device of the processing machine according to the first aspect of the invention, wherein the rotating shaft is coupled to the power source at a rear end in a straight joint manner, and the power source is a motor. The indexing rotary device of the processing machine according to the first aspect of the invention, wherein the outer portion of the rotating shaft is provided with a class annular surface having a plurality of screw holes, and the positioning plate has a plurality of bolts at the inner ring portion. The stepped surface of the shaft is locked and locked. The indexing rotary device of the processing machine of claim 1, wherein the pressing member of the positioning mechanism is driven by a driving structure against the outer ring portion of the positioning plate, and the driving structure is attached to the base The seat is provided with a ring groove for mounting the pressure piece, and the ring groove is connected to a fluid pressure source by the first line. The indexing rotary device of the processing machine according to the first aspect of the invention, wherein the air supply hole of the air floating mechanism is connected to the air pressure source by the second pipeline.