TWI798005B - Indexing device of roller rotary seat interlocking tooth disc - Google Patents

Abstract

The present invention provides an indexing device of roller rotary seat interlocking tooth disc, which mainly includes: a housing body with a mechanism accommodating cavity and a drive worm screwed in the mechanism accommodating cavity. A roller rotary seat set in the mechanism accommodating cavity, including a rotating shaft, a roller, a workpiece locking disc and a tail plate, wherein the tail plate forms a ring groove, and the roller and the driving worm are in a cooperative transmission relationship. A positioning tooth disc set includes a fixed tooth disc, a rotating tooth disc and a piston tooth disc, wherein the fixed tooth disc is assembled and positioned near the rear port, the rotating tooth disc is assembled and positioned on the rotating shaft, and the piston tooth disc is assembled in the ring groove; and the piston tooth disc is in a state of being driven to rotate and to perform axially reciprocating motion, so that the piston tooth disc has an engaging position and a releasing position on the actuation.

Description

Roller swivel seat linked tooth disc indexing device

The present invention relates to an indexing device; in particular, it refers to the disclosure of the structural type of an innovative indexing device in the form of a roller swivel seat linked with a toothed disc.

The indexing device referred to in the present invention, also known as the indexing plate in the industry, is a device that is widely used in machine processing at present, because the general three-axis processing machine cannot meet the requirements of rotation angle processing, and the indexing plate is The products developed to make up for the shortage of three-axis processing machines can maximize the processing efficiency of the machine.

At present, the driving types of indexing devices are mainly divided into two types: worm-linked gear and worm-linked roller seat. In terms of transmission efficiency, durability and transmission backlash, the worm-linked roller seat type The state performance is relatively good, especially in the transmission backlash, which can almost reach the zero backlash state, which is one of the reasons why it is suitable for high-precision machining.

However, the conventional indexing device in the form of a worm-driven roller swivel seat still has some imperfections in its practical application experience; probably because, as the requirements of the related industries for machining accuracy increase, the conventional indexing device Even if the device adopts the worm-linked roller swivel type, it may not be able to meet the requirements, because the indexing and positioning accuracy of the worm-linked roller swivel type can only reach about 20 seconds (angle unit), so it meets the processing accuracy requirements of the industry When it is higher, it does not meet its needs. At present, when faced with such ultra-high processing precision requirements, the relevant industries try to use angle encoders in order to meet the processing requirements, but this method is quite expensive because of angle encoders, so for Those who need to adopt it are often discouraged because they do not meet the best industrial economic benefits; moreover, whether the final result of processing is as expected, and whether the positioning state of the turntable of the indexing device is tight and firm are also one of the important reasons.

Therefore, in view of the problems existing in the above-mentioned conventional indexing devices, how to develop an innovative structure with relatively lower manufacturing and assembly costs, a firmer positioning state and more ideal practicability, really needs further thinking and breakthroughs in the relevant industries. In view of this, the inventor has been engaged in the manufacturing, development and design of related products for many years. After careful design and careful evaluation for the above-mentioned goals, he finally obtained a practical invention.

The main purpose of the present invention is to provide a roller swivel seat interlocking toothed disc type indexing device. The technical problem to be solved is how to develop a new type of indexing device with a more ideal and practical structure. Goals should be considered for innovation and breakthrough.

Based on the above-mentioned purpose, the technical characteristics of the present invention to solve the problem mainly lie in that the roller swivel seat interlocking toothed disc type indexing device system includes: a shell body, including a mounting positioning part and a mechanism accommodation cavity, and the mechanism accommodation cavity The front port and the rear port are formed by penetrating through the cylindrical space, and a rotary driver is arranged on the adjacent side of the mechanism housing chamber, and the shell base defines the X axis and the Y axis; a driving worm is screwed in the mechanism housing It is installed in the chamber and arranged along the X-axis, and the driving worm is passively connected with the rotary driver; a roller swivel seat is screwed in the mechanism accommodation chamber through the rotating support member and arranged along the Y-axis. The swivel base includes a rotating shaft, a number of rollers, a workpiece locking disc and a tail disc, the rotating shaft has a front end, a rear end and a shaft section between the front end and the rear end, and the workpiece locking disc It is set at the front end and corresponds to the front port, and the tail plate is set at the rear end and corresponds to the rear port. There is a ring groove formed inside the tail plate, and several rollers are set in the shaft section in a ring at intervals. , and make a number of rollers and the driving worm in a cooperative transmission relationship, so that the rotation of the driving worm can drive the roller turntable to rotate; a set of positioning toothed discs is set at the rear end of the roller turntable and the rear port of the mechanism accommodation cavity Between the roller turret and the rotating shaft, the positioning chainring set includes a fixed chainring, a rotating toothed plate and a piston type toothing plate, wherein the fixed toothed plate is positioned near the rear port, and the rotating toothed plate is positioned at The rotating shaft and the piston toothed plate are assembled in the ring groove of the tail plate, and the piston toothed plate can be driven to rotate and reciprocate along the Y-axis for a set stroke, which constitutes the meshing of the piston toothed plate. position and release position, at the meshing position, the piston chainring meshes with the fixed chainring and the rotating chainring at the same time, and at the release position, the piston chainring disengages from the fixed chainring and the rotating chainring at the same time, and the piston The meshing between the type gear plate, the fixed gear plate, and the rotating gear plate is a trapezoidal gear fit type, so that it has the function of automatically guiding the positive position when the teeth are inserted.

The effects and advantages of the present invention mainly can be driven by the driving worm to drive the transmission type of the roller turntable, and the overall structural assembly type and technical characteristics of the positioning toothed disc group, so that the indexing device can be applied to achieve It meets the requirements of higher processing precision in the industry and improves the positioning and locking force of the workpiece. It also adopts the positioning chainring set to achieve high-precision positioning. Compared with the conventional angle encoder, the cost can be greatly reduced. Thereby it has practical progress and better industrial economic benefits.

Please refer to Fig. 1 to Fig. 6, which are the preferred embodiments of the roller rotatable seat linked toothed disc indexing device of the present invention, but these embodiments are only for illustration, and are not subject to this structure in the patent application restrictions.

The roller rotatable tooth disc type indexing device includes the following components: a shell base 10, including a mounting and positioning part 11 and a mechanism accommodating cavity 12, the mechanism accommodating cavity 12 is a through cylindrical The space type defines a front port 121 and a rear port 122, and the adjacent side of the mechanism accommodating chamber 12 is provided with a rotary driver 13, and the shell body 10 defines an X-axis and a Y-axis; a drive The worm 20 is screwed in the mechanism accommodating cavity 12 and arranged along the X-axis, and the driving worm 20 is passively connected with the rotary driver 13; a roller rotating seat 30 passes through a rotating supporting member 40 Rotated in the mechanism accommodating cavity 12 and arranged along the Y-axis, the roller turntable 30 includes a rotating shaft 31, a plurality of rollers 32, a workpiece locking disc 33 and a tail disc 34, the rotating shaft 31 It has a front end 311, a rear end 312, and a shaft section 313 between the front end 311 and the rear end 312. The workpiece locking disc 33 is arranged on the front end 311 and is connected to the front port. Corresponding to 121, the tail plate 34 is arranged at the rear end 312 and corresponds to the rear port 122, and a ring groove 341 is formed inside the tail plate 34, and the plurality of rollers 32 are arranged in an annular row at intervals. The shaft section 313, and make the rollers 32 and the drive worm 20 in a cooperative transmission relationship, so that the rotation of the drive worm 20 can drive the roller turntable 30 to rotate; a positioning toothed disc group 50 is assembled Between the tail plate 34 of the roller turret 30, the rear port 122 of the mechanism accommodating chamber 12 and the rotating shaft 31 of the roller turret 30, the positioning chainring set 50 includes a fixed tooth Plate 51, a rotating toothed plate 52 and a piston type toothed plate 53, wherein the fixed toothed plate 51 is assembled and positioned adjacent to the rear port 122, the rotating toothed plate 52 is assembled and positioned on the rotating shaft 31, and the piston type toothed plate 53 It is assembled in the ring groove 341 of the tail plate 34, and the piston toothed plate 53 can be driven to rotate and reciprocate along the Y axis to make a set stroke, so that the piston toothed plate 53 is actuated. There is an engagement position and a release position on the top, as shown in Figure 6 in the engagement position, the piston-type toothed plate 53 is engaged with the fixed toothed plate 51 and the rotating toothed plate 52 at the same time, in the release position as shown in FIG. As shown in FIG. 4 and FIG. 5 , the piston-type toothed plate 53 is separated from the fixed toothed plate 51 and the rotating toothed plate 52 at the same time.

Wherein, the plurality of rollers 32 of the roller swivel seat 30 are any one of balls or rollers.

Wherein, the rotation supporting member 40 is any one of a roller bearing or a ball bearing.

As shown in Figures 4 and 5, in this example, the piston-type gear plate 53 is further equipped with a plurality of sealing ring linings 531 to achieve a sliding close relationship with the ring groove 341, and the piston-type gear plate A fluid accommodating portion 532 is formed between the disk 53 and the corresponding side of the ring groove 341 in the Y-axis, for introducing a fluid 60 to generate pressure to drive the piston-type toothed disk 53 to move toward the meshing position (as shown in FIG. 6 . Arrow L1), and between the piston toothed plate 53 and the fixed toothed plate 51, a plurality of elastic reset members 70 (note: but not limited to the use of coil springs), the plurality of elastic reset members 70 on the When the piston toothed disc 53 is in the meshing position, as shown in Figure 6, it is compressed to accumulate elastic force, and when the pressure generated by the fluid 60 is released, as shown in Figure 5, the elastic force of the multiple elastic reset members 70 can be utilized release (shown by arrow L2 in FIG. 5 ), thereby driving the piston-type chainring 53 to return to the release position. Wherein, the fluid 60 is any one of gas or oil. This example is only a preferred embodiment in which the piston-type toothed plate 53 can achieve reciprocating motion, but as far as the driving forms seen in the current known technology are concerned, the relevant industries can easily understand that other equivalent driving methods can also be achieved, such as making the The reciprocating action of the piston-type toothed disc 53 is driven by fluid pressure, which is also a feasible driving method, and should also be included in the main scope of the present invention, that is, it will not be described in detail one by one.

With the above-mentioned structural composition and technical features, in the actual application of the roller turret linked toothed disc indexing device disclosed in the present invention, firstly, the rotation of the driving worm 20 drives the roller turret 30 to produce a forward or reverse direction. Rotation, because the drive worm 20 and the roller turntable 30 have better transmission tightness compared with the worm drive gear type, and the transmission state of zero backlash can be achieved between the two, Therefore, this excellent feature alone can make the positioning accuracy of the indexing device reach about 20 seconds, and the present invention further integrates the purpose of the positioning chainring set 50. In its action, when the roller turret 30 rotates to a predetermined angular position , the piston toothed plate 53 will be controlled and displaced to the meshing position as shown in Figure 6, at this time the piston toothed plate 53 will mesh with the fixed toothed plate 51 and the rotating toothed plate 52 at the same time, during this process, because the fixed toothed plate The angle distribution accuracy of the tooth surface of 51 can be as high as 5 seconds, and the meshing between the piston tooth plate 53, the fixed tooth plate 51 and the rotating tooth plate 52 is a trapezoidal tooth matching type, which has the function of automatically guiding and aligning when entering the teeth , so when the piston toothed plate 53 meshes with the fixed toothed plate 51, if the angle of the piston toothed plate 53 deviates, it will be guided to the normal position, and because the piston toothed plate 53 is also meshed with the rotating toothed plate 52 at the same time , so if there is a deviation in the angle of the rotating toothed disc 52 (together with the roller rotating seat 30), it will also be guided to the normal position (as shown in the change from Figure 7 to Figure 9), that is to say, the present invention discloses In the actual application of the roller rotatable toothed disc indexing device, the accuracy of the indexing and positioning state can be as high as 5 seconds; in addition, another advantage of the positioning toothed disc set 50 in the present invention is that the workpiece is locked. When the disk 33 is in the positioning state, it can have a higher positioning and locking force, thereby effectively preventing the workpiece from being displaced during the processing; and in terms of manufacturing and assembly costs, although the conventional method of using an angle encoder as mentioned above is also It can meet the requirement of high precision, but the cost of using the positioning chainring set 50 in the present invention is compared with the cost of using the conventional angle encoder. The present invention can at least reduce the installation cost by about 7 to 10 times, and the economic benefit is significantly improved. The result is obviously beyond the reach of the conventional technology; therefore, the roller swivel seat interlocking toothed disc type indexing device disclosed in the present invention can indeed bring a great leap forward to the related technical field.

10: shell base

11: Install the positioning part

12: Mechanism accommodation cavity

121: front port

122: rear port

13:Rotary drive

20: Drive worm

30:Roller swivel seat

31: Shaft

311: front end

312: Rear end

313: shaft section

32: Roller

33: Workpiece locking plate

34:Late session

341: ring groove

40: rotating support member

50: positioning chainring set

51: fixed chainring

52:Rotate the sprocket

53: Piston chainring

531: sealing ring lining

532: Fluid container

60: Fluid

70: Elastic reset piece

X, Y: Axial

L1, L2: Arrows

Fig. 1 is a combined three-dimensional appearance view of a preferred embodiment of the present invention. Fig. 2 is a perspective view of a three-dimensional partial structure of a preferred embodiment of the present invention. Fig. 3 is an exploded perspective view of main components of a preferred embodiment of the present invention. Fig. 4 is a Y-axis combined sectional view of a preferred embodiment of the present invention. Fig. 5 is an enlarged view of the part marked 5 in Fig. 4, and shows that the piston-type chainring is in the release position. Fig. 6 is a schematic diagram of the state of the piston toothed disc of the present invention in the meshing position. Fig. 7 is a first schematic diagram of the action of the piston-type toothed plate of the present invention that can guide the rotating toothed plate. Fig. 8 is the second schematic diagram of the action of the piston-type toothed plate of the present invention that can guide the rotating toothed plate. FIG. 9 is a third schematic diagram of the action of the piston-type toothed plate of the present invention that can guide the rotating toothed plate.

10: shell base

13:Rotary drive

20: Drive worm

30:Roller swivel seat

31: Shaft

312: Rear end

313: shaft section

32: Roller

33: Workpiece locking plate

34:Late session

341: ring groove

50: positioning chainring set

51: fixed chainring

52:Rotate the sprocket

53: Piston chainring

70: Elastic reset piece

X, Y: Axial

Claims (5)

A roller rotary seat linked toothed disc type indexing device, comprising: A housing body, including a mounting and positioning part and a mechanism accommodation cavity, the mechanism accommodation cavity is defined as a penetrating cylindrical space to form a front port and a rear port, and the adjacent side of the mechanism accommodation cavity is provided There is a rotary drive, and the shell body defines an X-axis and a Y-axis; A driving worm screwed in the mechanism accommodation cavity and arranged along the X-axis, and the driving worm is passively connected to the rotary driver; A roller swivel seat is screwed in the mechanism accommodating cavity through a rotating support member and arranged along the Y axis. The roller swivel seat includes a rotating shaft, several rollers, a workpiece locking disc and a tail disc, the rotating shaft has a front end, a rear end and a shaft section between the front end and the rear end, the workpiece locking disc is arranged on the front end and corresponds to the front port, The tail plate is arranged at the rear end and corresponds to the rear port. A ring groove is formed on the inner side of the tail plate. The roller and the driving worm are in a cooperative transmission relationship, so that the rotation of the driving worm can drive the roller rotating seat to rotate; and A positioning chainring set is arranged between the tail plate of the roller rotating base, the rear port of the mechanism accommodating cavity and the rotating shaft of the roller rotating base. The positioning toothing plate set includes a fixed chainring, a rotating toothed plate and a piston type toothed plate, wherein the fixed toothed plate is assembled and positioned adjacent to the rear port, the rotating toothed plate is assembled and positioned on the shaft, and the piston type toothed plate is assembled on the rear plate In the ring groove, and make the piston toothed plate be in the state of passive rotation and reciprocating movement along the Y-axis for a set stroke, so that the piston toothed plate has an meshing position and a release position in the action. In the meshing position, the piston toothed plate is meshed with the fixed toothed plate and the rotating toothed plate at the same time, and in the release position, the piston toothed plate is disengaged from the fixed toothed plate and the rotating toothed plate at the same time ; and wherein, the engagement between the piston-type toothed disc, the fixed toothed disc, and the rotating toothed disc is a trapezoidal tooth matching type, so that it has the function of automatically guiding and correcting when the teeth are inserted. According to claim 1, the roller swivel seat linked toothed disc type indexing device, wherein the plurality of rollers of the roller turntable are either balls or rollers. According to claim 1, the roller turret linked toothed disc type indexing device, wherein the rotation supporting member is either a roller bearing or a ball bearing. According to claim 1, the roller turret linked toothed disc type indexing device, wherein the piston type toothed disc system is further equipped with a plurality of sealing rings to achieve a sliding tight relationship with the ring groove, and A fluid accommodating portion is formed between the piston gear and the Y-axis corresponding side of the ring groove, which is used to introduce a fluid to generate pressure to drive the piston gear towards the meshing position, and the piston gear A plurality of elastic restoring parts are installed between the disc and the fixed toothed disc, and when the piston-type toothed disc is in the meshing position, the plurality of elastic restoring parts are compressed to accumulate elastic force, and when the pressure generated by the fluid is released, The elastic force of the plurality of elastic restoring parts can be used to release, thereby driving the piston-type chainring to return to the released position. According to claim 4, the roller swivel seat linked toothed disc type indexing device, wherein the fluid is any one of gas or oil.

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