TWI526270B - Direct drive type dial structure - Google Patents

Description

Direct drive indexing plate structure

The invention relates to the technical field of machine tool components, in particular to a direct drive indexing disc structure with a DD motor structure as a direct driving force.

The indexing plate is an indispensable kit in the automation machinery, such as precision machining, assembly, production, etc.; the indexing plate can be used to generate the indexing and positioning functions, and the indexing plate can accurately control the rotation of the table, according to the processing The required cutting angle controls the displacement of the table at a relative angle to achieve precise positioning.

Conventional indexing discs are mainly made up of mechanical worm and worm gears. When the gears are rubbed, the friction of the gears will cause wear and then form backlash; therefore, frequent maintenance and shutdown procedures and related calibration procedures are required. Moreover, the mechanical indexing discs are mostly adjusted manually, which cannot meet the requirements of machine automation. To this end, people who have the heart have proposed the teaching of a motor-driven worm and worm gear, but instead derived other defects.

For example, when the motor drives the worm gear, it is necessary to use the deceleration device as a relay. In addition to the increase in volume and complexity of the structure, the axial length (volume) extending along the operating axis of the motor drive shaft must include the motor body, the reduction gear, and the worm. The length of the worm wheel is such that it lacks the surface of the processing machine and the surrounding space.

Therefore, how to replace the mechanical transmission indexing plate can be accurate The need to achieve positioning and shortening the axial length (volume) has become an urgent goal for the industry.

In view of the problems and deficiencies of the above-mentioned prior art, the main object of the present invention is to provide a direct-drive indexing disc structure, which is provided as an indexing disc by an electric drive method, and solves the mechanical wear of the prior art. The axial volume is large and so on.

According to the above object of the present invention, a direct drive indexing disc structure is proposed, which comprises a power mechanism and a brake mechanism concentrically connected to the rear end of the power mechanism. The power mechanism comprises a concentric sleeve, a stator, a rotor, a bearing seat, a plurality of bearings, a pressing nut, a cover, and a connecting member. The brake mechanism includes a brake to fix the seat, a brake ring seat, a brake ring, a front adapter, a rear bearing, a rear adapter, and an encoder. With the components described above, the power mechanism is directly driven in the form of an electric drive and provides a table connection for simultaneous rotation, indexing and positioning.

1‧‧‧Power Agency

11‧‧‧Shell

111‧‧‧ housing shaft hole

112‧‧‧Electrical box

113‧‧‧Connecting tube

114‧‧‧Solenoid valve

115‧‧‧Wall

116‧‧‧ accommodating space

117‧‧‧First airway

118‧‧‧Second airway

119‧‧‧Perforation

12‧‧‧ Stator

13‧‧‧Rotor

14‧‧‧ bearing housing

141‧‧‧ shaft tube department

142‧‧ ‧ retaining wall

143‧‧‧ Socket class

15‧‧‧ shaft

151‧‧‧ external thread

152‧‧‧Class Circle

153‧‧‧Connecting seat

16‧‧‧Forced nuts

161‧‧‧ internal thread

17‧‧‧ Cover

171‧‧‧ Socket ring

172‧‧‧Locking Department

173‧‧‧Apartment

3‧‧‧ brake mechanism

31‧‧‧煞车来定固定座

311‧‧‧ Fixed seat shaft hole

312‧‧‧ convex ring

313‧‧‧First relay airway

314‧‧‧Second relay airway

315‧‧‧煞车室室

32‧‧‧煞车圈座

321‧‧‧ ring seat shaft hole

322‧‧‧ Ring groove

323‧‧‧Flexible component

324‧‧‧ airway

33‧‧‧煞车环

331‧‧‧ push the top

332‧‧‧Transfer area

333‧‧‧First air chamber

334‧‧‧Second chamber

335‧‧‧Flexible components

34‧‧‧Pre-engagement

35‧‧‧煞车片

36‧‧‧After the connection

37‧‧‧Encoder

371‧‧‧Encoder components

5‧‧‧Back cover

51‧‧‧Back cover shaft hole

52‧‧‧ slots

521‧‧‧Limited wall

A1‧‧‧ bearing

A2‧‧‧ liner

A3‧‧‧Leather cover

A4‧‧‧ rear bearing

Fig. 1 is a perspective view showing the direct drive indexing plate of the present invention.

Fig. 2 is a schematic exploded view of a partial member of the embodiment shown in Fig. 1.

Fig. 3 is a schematic cross-sectional view showing the embodiment shown in Fig. 1.

Figure 4 is a partial schematic view of the embodiment shown in Figure 3.

Figure 5 is a partial perspective view of the embodiment shown in Figure 1.

Fig. 6 is a second exploded view of the embodiment of the embodiment shown in Fig. 1.

Fig. 7 is an exploded perspective view of the embodiment shown in Fig. 6.

Figure 8 is a partial cross-sectional view of the embodiment shown in Figure 1.

Figure 9 is a schematic cross-sectional view of the embodiment shown in Figure 1.

Figure 10 is a schematic cross-sectional view showing another embodiment of the embodiment shown in Figure 1.

In the following, the embodiment of the direct-drive indexing plate of the present invention will be further described with reference to the accompanying drawings. In order to facilitate the understanding of the embodiments of the present invention, the same components are denoted by the same reference numerals.

Referring to Figures 1 to 10, the direct drive indexing plate structure includes a power mechanism 1, a brake mechanism 3 concentrically connected to the rear end of the power mechanism 1, and a concentric trainer connected to the brake mechanism 3. End cover 5; by the composition of the above components, the power mechanism 1 provides a workbench connection (not shown), and is synchronized by the power mechanism 1 to achieve the purpose of rotation, indexing and positioning, and is convenient for processing. The machine can process the work on the workbench (not shown). In implementation, the brake mechanism 3 and the rear cover 5 are more selectively omitted, and the power mechanism 1 is directly connected by an external controller to control its actuation (known art).

The power mechanism 1 is shown in FIGS. 1 to 5, and includes a housing 11 concentrically sleeved, a stator 12 housed in the housing 11, a rotatable rotor 13 accommodated in the stator 12, and one end. The bearing seat 14 is disposed on the rotor 13; the other end is locked with the housing 11, and a plurality of bearings A1, which are disposed in the bearing housing 14, and a liner A2, which is accommodated in the bearing housing 14 and spaced apart from each bearing A1. Through the bearings A1 and a rotating shaft 15 of the liner A2, a tightening nut 16 screwed to the outer circumference of the rotating shaft 15 and accommodating the bearing seat 14, a set of the outer peripheral edge of the rotating shaft 15 and locked with the bearing housing 14 to cooperate with the tightening nut 16 a cover 17 for limiting each bearing A1 and the liner A2, a sleeve A3 attached to the outer periphery of the rotating shaft 15, and accommodated on the front end surface of the cover 17, and a connecting seat 153 locked on the front end surface of the rotating shaft 15, And a rotatable housing is disposed on the stator 12 and coupled to the rotor 13 and the bearing housing 14, respectively, and the transition bearing housing 14 supports the connecting member 18 of the rotor 13.

The housing 11 has a housing shaft hole 111 extending axially, an electrical box 112 disposed outside the housing 11, a plurality of connecting tubes 113 connecting the electrical box 112, and a housing The solenoid valve 114 is housed in the electrical box 112. The electrical box 112 is defined by a surrounding wall 115 (as shown in FIG. 3) and has an accommodating space 116, and the connecting tube 113 communicates with the accommodating space 116 and the outside of the electrical box 112; and the surrounding wall 115 has Connecting the accommodating space 116 with the first and second air outlets 117, 118 outside the electrical box 112 (as shown in Figures 5, 9, and 10), and the through holes 119 connecting the accommodating space 116 and the housing shaft hole 111. One ends of the first and second air outlets 117, 118 are respectively connected to the solenoid valve 114, and the through holes 119 are provided for the electrical lines of the stator 12 to pass through (not shown). In the implementation, the electrical box 112, the connecting pipe 113, the electromagnetic valve 114, the first and second air outlets 117, 118, and the through hole 119 can be omitted in the same manner as the braking mechanism 3.

The bearing housing 14 is as shown in FIGS. 2 and 3; an axially extending shaft tube portion 141 and a retaining wall 142 extending radially outward from the front end of the shaft tube portion 141; the shaft tube portion 141 is a Hollow tubular body with front end face and retaining wall The 142 has a set of classes 143. The shaft tube portion 141 is housed in the rotor 13, and the stopper wall 142 is locked to the front end surface of the casing 11.

Each of the bearings A1 is housed in the shaft tube portion 141.

The liner A2 is a hollow tubular body and is received in the shaft tube portion 141.

The rotating shaft 15, as shown in Figs. 2 and 3, has a ring portion 152 formed by a thread 151 formed outside the outer end surface of the rear end and a radially outwardly extending front end of the rotating shaft 15. When implemented, the shaft 15 can be a hollow tubular body.

The connector 153 provides a preset fixture lock (not shown). When implemented, the connector 153 can be selectively omitted.

The pressing nut 16 is as shown in Figures 2 and 3; has an internal thread 161 matched with the external thread 151, and the outer ring surface of the nut 16 is tightened, and a plurality of grooves 162 are recessed in the axial direction for convenient When the nut 16 is tightened, the force is applied when the shaft 15 is screwed.

The cover 17 is as shown in Figures 2 and 3; has a hollow sleeve ring portion 171, a locking portion 172 formed by radially outwardly extending from the front end of the socket portion 171, and a radially inward expansion. The abutting portion 173 is formed. The cover 17 is matched with the sleeve level 143 of the bearing housing 14, and the locking portion 172 is locked with one of the sleeve faces 143, and the abutment portion 173 is defined together with the class ring portion 152 of the rotary shaft 15. A dust-proof housing (unnumbered) is provided at the front end, and a dust jacket A3 plug is provided.

The brake mechanism 3 is as shown in Figures 3 and 5-10; and includes a brake that locks the rear end surface of the housing 11 to fix the seat 31 and a series of brakes to secure the vehicle. The seat ring 32 of the seat 31 (as shown in FIG. 3), the brake ring 33 accommodated in the brake ring seat 32, and the rear end surface of a lock connector 18 are connected to the pipe 34 (as shown in FIG. 8). A set is disposed on the outer circumference of the front connecting pipe 34, and after the brake is used to abut the fixing seat 31, the bearing A4, a front connecting pipe 34 is engaged, and cooperates with the front connecting pipe 34 to clamp a piece of the car 35 and then engages The tube 36, the outer end of the brake shoe 35 is inserted between the brake ring 33 and the brake to fix the seat 31, and the brake ring 33 can selectively tighten the brake shoe 35 and the rear adapter pipe 36 encoder assembly. 371, and an encoder 37 locked on the rear end surface of the brake ring seat 32, sensing the rotation speed, angle, torque and the like of the encoder assembly 371, and the servo mechanism for supplying the gas connection is used for control (not shown) Show, and not the focus of this case).

The brakes are used to fix the seat 31, as shown in Figures 4, 7-10; The first and second relay air passages 313 and 314 and the first and second air outlet passages 313 and 118 are connected to the first and second air outlet passages 117 and 118. The brake film chamber 315 is recessed to the rear end surface of the fixed seat 31. The first relay air passage 313 corresponds to the position of the first air outlet 117, the axial direction passes through the brake to form the fixed seat 31 (as shown in FIG. 9), and the second relay air passage 314 corresponds to the second air outlet 118 position. The brake is formed on the front end surface of the fixing base 31, and the other end is formed on the convex end portion 312 of the rear end surface (as shown in FIG. 10).

The brake ring seat 32 has an axially-wearing ring seat shaft hole 321 a ring groove 322 recessed in the front end surface of the brake ring seat 32, a plurality of elastic member receptacles 323 recessed in the bottom of the ring groove 322, and one end connected to the first relay air passage 313. The air inlet 324 is connected to the ring groove 322 at the other end (as shown in Fig. 9). The ring groove 322 provides a brake to project the convex ring portion 312 of the fixing seat 31 (as shown in Fig. 8) to partially close the open end of the ring groove 322.

The brake ring 33 is movable and placed in the ring groove 322, The push top 331 and the transfer area 332 (shown in FIG. 8) formed on the front end surface of the brake ring 33; wherein the transfer area 332 is matched with the brake to match the convex ring portion 312 of the fixed seat 31, and the push top 331 is matched. , the open end of the ring groove 322 of the brake ring seat 32 is closed, so that the transfer zone 332 and the convex ring portion 312 together define a first air chamber 333 (as shown in FIGS. 8 and 10), and the brake ring 33 and A second air chamber 334 (as shown in FIGS. 8 and 9) is defined between the bottom of the ring ring 32 and the bottom of the groove 322, and the self-intake air passage 324 or the second relay air passage is selectively selected by the electromagnetic valve 114. The gas is introduced into the second gas chamber 334 or the first gas chamber 314 to form a displacement drive to the brake ring 33. In practice, the brake ring 33 is normally received by the pressure element of the elastic member 335 and the second air chamber 334 of the elastic member receptacle 323, so that the push top 331 normally abuts against the brake shoe 35.

The front connecting pipe 34 is a hollow tubular body connected in series to the rotating shaft 15 The rear end is interlocked with the connecting member 18 (as shown in Fig. 8) and synchronously with the rotating shaft 15 (connecting member 18).

The rear connecting pipe 36 is a hollow tubular body which is connected in series with the rear end of the front connecting pipe 34 and is synchronously linked with the front connecting pipe 34.

The rear cover 5 is locked and covers the rear end surface of the brake ring seat 32, and has an axial through hole forming rear cover shaft hole 51 and a rear cover shaft hole 51 surrounding the shape The front cover 5 is formed on the front end surface of the rear cover 5 and defines a limiting wall 521 for opening the front cover 52. The receiving groove 52 further defines a dust jacket A3.

Therefore, the above is a direct drive of a preferred embodiment of the present invention. The introduction of the indexing plate, the various components and the assembly method will be further described below.

First, the power mechanism 1 is electrically coupled to an associated servomechanism or controller, and the spindle 15 provides a table connection (not shown and is a matter of skill). Normally (as shown in FIG. 9), the solenoid valve 114 operates to accumulate a high pressure gas into the second air chamber 334 via the first air outlet 117, the first relay air passage 313, and the air inlet passage 324 to form an ejector pressure. The brake ring 33 is displaced by the pressure in the second air chamber 334 toward the brake shoe 35, so that the push top 331 of the brake ring 33 abuts against the brake shoe 35, and limits the brake shoe 35 and its associated connecting members (front , the rear connecting pipes 34, 36, the connecting member 18, the rotating shaft 15, and the rotor 13, etc.).

When there is a rotary table requirement, as shown in FIG. 10, the solenoid valve 114 is triggered to stop supplying air to the first air outlet 117, and the high pressure gas is changed to the second air passage 118 and the second relay air passage 314. The first air chamber 333 is accumulated to form a pushing pressure, so that the brake ring 33 is displaced by the pressure of the first air chamber 333 toward the bottom of the ring groove 322 of the brake ring seat 32, and the elastic member 335 is compressed to make the brake ring 33 The push top 331 is no longer in contact with the brake shoe 35. At this time, the stator 12 is triggered to drive the rotor 13 to rotate in a predetermined direction, and the power of the spin is transmitted by the connecting member 18, and the rotating shaft 15 is rotated, so that the table connected to the rotating shaft 15 is rotated, and the rotating shaft 15 is rotated. Before connecting the connecting pipe 34 and the rear connecting pipe 36 (encoder The component 371) synchronously rotates (including the clip 35 clamped by the clamp) to trigger the encoder 37 to sense the rotational speed, angle and the like of the encoder assembly 371, and responds to the servo mechanism of the electrical connection for control (not shown) And not the focus of this case).

When the table is rotated by the rotating shaft 15 to a preset angle, the stator 12 The rotor 13 is no longer driven to rotate; and the solenoid valve 114 is triggered to stop supplying high pressure gas to the second air outlet 118 (as shown in FIG. 9), and passes through the first air outlet 117, the first relay air passage 313, and the air inlet passage. 324 inflates the second air chamber 334 to accumulate the pressure of the ejector, so that the brake ring 33 is displaced by the pressure of the second air chamber 334 toward the brake shoe 35, so that the brake ring 33 pushes the top 331 against the brake shoe 35, forcing the brake shoe 35 stops rotating.

Since the brake shoe 35 is pushed up by the brake ring 33; The fixing seat 31 forms a swaying locking on the braking piece 35, so that the braking piece 35 can no longer be rotated, and the connecting piece also clamps the front and rear connecting pipes 34 and 36 of the braking piece 35, and locks the front connecting pipe 34. The connecting member 18 and the rotating shaft 15 locked with the connecting member 18 are also stopped in series, and the connecting member 18 is synchronously pulled to limit the rotor 13 so that the working table connected to the rotating shaft 15 can be positioned to achieve a high angle of the working table. maintain.

The above description is only a preferred embodiment of the present invention. The features of the present invention are intended to be illustrative, and not to limit the scope of the embodiments of the present invention. The scope of the invention is covered.

1‧‧‧Power Agency

11‧‧‧Shell

112‧‧‧Electrical box

153‧‧‧Connecting seat

Claims (9)

A direct drive indexing disc structure, comprising a power mechanism, a brake mechanism concentrically connected to the rear end of the power mechanism, wherein: the power mechanism comprises a concentric sleeve and a housing a stator of the body, a rotatable rotor seated on the stator, a bearing seat at one end of the rotor, a bearing seat locked at the other end and the housing, a plurality of bearings disposed in the bearing housing, and an extension a rotating shaft of each of the bearings, a screw nut that is screwed to the outer side of the rotating shaft, and is received by the bearing housing, and a set is attached to the outer circumference of the rotating shaft and locked with the bearing housing, and the tightening nut is matched a cover of each of the bearings, and a rotatably received portion of the stator and coupled to the rotor and the bearing housing to transition the bearing support force to the connecting member of the rotor; the housing having an axis a housing shaft formed through the housing, an electrical box disposed outside the housing, and a solenoid valve housed in the electrical box; the electrical box is defined by a surrounding wall and has a capacity a space; and the surrounding wall has a connection between the accommodating space and the exterior of the electrical box a first air outlet and a second air outlet, wherein the first air outlet and the second air outlet are respectively connected to the electromagnetic valve and controlled by the electromagnetic valve to form an opening and closing; the bearing housing has an axially extending shaft a tube portion and a retaining wall extending radially outward from a front end of the shaft tube portion; the shaft tube portion extends through the rotor, and the retaining wall is locked to the front end surface of the housing; the cover has a Hollow socket ring, the socket ring is for The brake shaft is extended at one end; the brake mechanism includes a brake that locks the rear end surface of the housing to make the fixed seat, a brake carrier that connects the brakes to the fixed seat, and a brake that is placed in the brake ring seat. a ring, a connecting pipe before the rear end face of the connecting piece, a set of outer circumferences of the front connecting pipe, and a bearing, a lock of the front connecting pipe, and the front connecting pipe The adapter pipe cooperates to clamp the pipe after the car piece is clamped, and the outer periphery of the brake car piece extends between the brake ring and the brake car to fix the seat, so that the brake ring can selectively restrain the brake And an encoder that is locked to the rear end surface of the brake ring seat; the brake is used to fix the seat, and has an axial direction through the brake to fix a shaft hole formed in the fixed seat, and the axial direction is formed on the brake to fix the brake a convex ring portion of the rear end surface of the seat, a first relay air passage communicating with the first air outlet passage and the second air outlet passage, and a second relay air passage; the first relay air passage system corresponding to the first air outlet position Axially extending through the brake to form a fixed seat, and the second One end of the air passage corresponds to the second air outlet position, and is formed on the front end surface of the fixed seat, and the other end is formed on the convex ring portion; the brake ring seat has an axially formed ring formed by the brake ring seat a seat shaft hole, a ring groove recessed in the front end surface of the brake ring seat, a plurality of elastic component receptacles recessed in the bottom of the ring groove groove, and a connection with the first relay air passage and the ring groove An air passage; the annular groove provides a convex portion of the convex ring portion to partially close a cross section of the open end of the annular groove; The brake ring is movably disposed in the ring groove, and has a push top formed on a front end surface of the brake ring and a transfer zone; the transfer zone and the convex ring part jointly define a first air chamber And the brake ring and the bottom of the ring groove jointly define a second air chamber, and the brake ring is displaced by the pressure of the first air chamber or the second air chamber. The direct drive indexing disc structure according to claim 1, wherein the encoder senses the rotational speed, angle and the like of the rear connecting tube. The direct drive indexing disc structure of claim 1, wherein the rotating shaft has a thread formed outside the outer annular surface at the rear end of the rotating shaft, and a class ring formed radially outward from the front end of the rotating shaft. unit. The direct drive indexing disc structure of claim 3, wherein the pressing nut has an internal thread matched with the external thread, and the outer surface of the pressing nut is axially concave. The plurality of grooves facilitate the application of force when the tightening nut is screwed to the shaft. The direct drive indexing disc structure of claim 3, wherein the bearing housing further has a set of connecting stages defined by the front end surface of the shaft tube portion and the retaining wall. The direct drive indexing disc structure of claim 5, wherein the cover further has a locking portion formed from a front end of the socket ring portion, radially outwardly expanded, and a radially inward direction Expanding the abutment portion; the cover is matched to the socket class, and the lock portion is locked to the socket. For example, the direct drive indexing disc structure described in claim 6 of the patent scope, wherein the The joint portion and the class ring portion together define a dust-proof housing chamber that is open at the front end to provide a dust jacket plug. The direct drive indexing disc structure of claim 1, wherein the rear end surface of the braking mechanism further provides a rear cover locking, and the rear cover is locked and covered on the rear end surface of the brake ring seat. The direct drive indexing disc structure of claim 8, wherein the rear cover has an axially extending through the rear cover to form a rear cover shaft hole, and a rear cover shaft hole is formed around the rear cover. The front end surface defines a limiting wall for opening the front groove, and the receiving groove further provides a dust jacket.