CN220488222U - Flexible transmission mechanism and positioning device using same - Google Patents

Abstract

The utility model discloses a flexible transmission mechanism and a positioning device using the same, wherein the flexible transmission mechanism comprises a base, one surface of the base is connected with a guide rail, a cavity is formed in the base, the inner wall of the guide rail is connected with a support shaft in a sliding manner, a sliding groove is formed in the support shaft, the cavity is communicated with the sliding groove, one surface of the base is fixedly connected with a first motor, a second motor and a third motor, and one surface of the support shaft is fixedly connected with a first mounting disc; and the transmission unit is connected with the lifting unit and the rotating unit, the transmission unit is arranged in the base, the lifting unit is arranged in the guide rail, and the rotating unit is arranged in the guide rail. The flexible transmission mechanism eliminates the screw rod and the guide rail required by X-direction and Y-direction movement in a mode of a screw rod, a spline shaft, a spline sleeve, a transmission shaft and other sleeve shafts, and saves a large amount of volume; the spline shaft and the spline sleeve are utilized to realize the characteristics of force transmission and sliding, the translation of the space motion is changed into rotation, and the time required by the motion is reduced.

Description

Flexible transmission mechanism and positioning device using same

Technical Field

The utility model relates to the field of tool clamps, in particular to a flexible transmission mechanism and a positioning device using the same.

Background

Along with the increase of the number of vehicle types on each production line in a workshop, the flexible production line compatible with multiple vehicle types can be realized. The existing flexible transmission mechanism can realize stepless adjustment, is theoretically compatible with all vehicle types, but has huge volume to limit the movement in a narrow space, can realize positioning in the Z direction, cannot be matched with other mechanisms for use, and cannot position small space, small parts and the like of a vehicle body.

Therefore, a device for moving and positioning small parts in a small space is needed, the problems of large volume, limited application range and insufficient downward compatibility of the conventional flexible transmission mechanism can be solved, modularization is realized, and besides the device is independently used, the device can also be matched with other structures and devices for use, so that the accurate positioning of small space, small parts and the like of a vehicle body can be realized.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

The present utility model has been made in view of the problems occurring in the prior art.

Therefore, the technical problem to be solved by the utility model is that the existing flexible transmission mechanism has large volume, complex structure and limited application range after the lead screw and the guide rail are arranged in the directions of X, Y, Z.

In order to solve the technical problems, the utility model provides the following technical scheme: the flexible transmission mechanism comprises a base, wherein one surface of the base is connected with a guide rail, a cavity is formed in the base, the inner wall of the guide rail is in sliding connection with a supporting shaft, a sliding groove is formed in the supporting shaft, the cavity is communicated with the sliding groove, one surface of the base is fixedly connected with a first motor, a second motor and a third motor, and one surface of the supporting shaft is connected with a first mounting plate; and the transmission unit is connected with the lifting unit and the rotating unit, the transmission unit is arranged in the base, the lifting unit is arranged in the guide rail, and the rotating unit is arranged in the supporting shaft.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the transmission unit comprises a first driving gear and a first driven gear, the output end of the first motor is connected with the first driving gear, and one end of the first driving gear is meshed with the first driven gear.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the transmission unit comprises a first driving bevel gear and a first driven bevel gear, the output end of the second motor is connected with the first driving bevel gear, and one end of the first driving bevel gear is meshed with the first driven bevel gear.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the lifting unit comprises a screw and a screw, one end of the screw is fixedly connected with a first driven gear, the outer wall of the screw is in sliding connection with a sliding groove, the outer wall of the screw is rotationally connected with the screw, and one surface of the screw is connected with a supporting shaft.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the transmission unit further comprises a second driving bevel gear and a second driven bevel gear, the output end of the third motor is connected with the second driving bevel gear, and one end of the second driving bevel gear is meshed with the second driven bevel gear.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the first worm is fixedly connected to one face of the first driven bevel gear, the first worm wheel is connected to the outer wall of the first worm in a meshed mode, the second worm is fixedly connected to one face of the second driven bevel gear, and the second worm wheel is connected to the outer wall of the second worm in a meshed mode.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the rotating unit comprises a first spline shaft and a first transmission shaft, the first spline shaft is connected with the first worm gear in a meshed mode, the inner wall of the first spline shaft is connected with the first transmission shaft, and one end of the first transmission shaft is fixedly connected with the first mounting disc.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the rotary unit further comprises a second transmission shaft, one end of the second transmission shaft is fixedly connected with a second worm gear, and one end of the second transmission shaft is fixedly connected with a spline housing.

The utility model has the beneficial effects that: the flexible transmission mechanism eliminates the screw rod and the guide rail required by X-direction and Y-direction movement in a mode of a screw rod, a spline shaft, a spline sleeve, a transmission shaft and other sleeve shafts, and saves a large amount of volume; the spline shaft and the spline sleeve can realize the characteristics of force transmission and sliding, and simultaneously can ensure the precision required by the movement, change the translation of the space movement into rotation, and reduce the time required by the movement; the space can be better utilized, so that the main body can be positioned on the premise of not moving, and ineffective space movement is reduced.

In view of the problems that the existing positioning device is large in size and insufficient in compatibility, and cannot be used together with other structures and devices, and the positioning device can be used in more scenes, the positioning device using the flexible transmission mechanism is provided.

In order to solve the technical problems, the utility model also provides the following technical scheme: comprises a flexible transmission mechanism; and the positioning unit comprises a second mounting plate, one surface of the second mounting plate is connected with a limiting plate, one surface of the limiting plate is connected with a first track plate, one surface of the first track plate is connected with a second track plate, and the positioning unit is connected with the first mounting plate.

As a preferred embodiment of the flexible transmission mechanism of the present utility model, wherein: the second mounting plate is kept away from limiting plate one side fixed connection second integral key shaft, second integral key shaft one end rotates and connects the spline housing, second drive gear of second integral key shaft one end fixed connection, second driven gear is connected in second drive gear outer wall meshing, third transmission shaft is connected to second driven gear one side, third transmission shaft one end runs through the limiting plate and connects the second track board, arc spout is seted up to second track board one side, arc spout inner wall sliding connection sliding ring, sliding ring inner wall fixed connection locating pin.

The utility model has the other beneficial effects that: the positioning device provides power through a flexible transmission mechanism, the positioning pin moves to a required position through the cooperation of the flexible transmission mechanism, and the rotation centers of the positioning pin are converted by adopting transmission modes such as a spline shaft, a spline housing, a transmission shaft, a gear and the like, so that the movement spaces with different rotation radiuses are realized, and the requirement of flexibility is met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic diagram of a flexible transmission mechanism according to the present utility model;

FIG. 2 is an exploded view of a transmission unit 200 according to the present utility model;

FIG. 3 is an exploded view of the elevating unit 300 and the rotating unit 400 according to the present utility model;

fig. 4 is a schematic partial cross-sectional view of the present utility model including a second motor 105;

FIG. 5 is a schematic partial cross-sectional view of the present utility model including a third motor 106;

FIG. 6 is a schematic diagram of the overall structure of the present utility model;

FIG. 7 is an exploded view of the positioning unit 500 of the present utility model;

fig. 8 is a top view of a positioning unit 500 in the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 3, in a first embodiment of the present utility model, a flexible transmission mechanism is provided, where the flexible transmission mechanism includes a base 100, one surface of the base 100 is connected to a guide rail 101, a cavity 102 is formed inside the base 100, an inner wall of the guide rail 101 is slidably connected to a support shaft 103, a chute 103a is formed inside the support shaft 103, the cavity 102 is communicated with the chute 103a, one surface of the base 100 is fixedly connected to a first motor 104, a second motor 105, and a third motor 106, and one surface of the support shaft 103 is fixedly connected to a first mounting disc 107.

The supporting shaft 103 slides on the inner wall of the guide rail 101 to move the first mounting plate 107 in the Z direction, the inside of the cavity 102 is used for carrying the transmission unit 200, and the inner wall of the chute 103a is provided with the lifting unit 300 and the rotating unit 400.

And a transmission unit 200, the transmission unit 200 connecting the lifting unit 300 and the rotation unit 400, the transmission unit 200 being disposed in the base 100, the lifting unit 300 being disposed in the guide rail 101, the rotation unit 400 being disposed in the support shaft 103.

In summary, this kind of flexible transmission mechanism through setting up elevating unit 300 and rotary unit 400, can drive the positioner who sets up on first mounting disc 107 and go up and down and rotate, cooperates positioner to remove in less space, realizes more accurate location. Starting the first motor 104, wherein the first motor 104 drives the transmission unit 200, the transmission unit 200 drives the lifting unit 300 to move in the Z direction, and the supporting shaft 103 slides on the inner wall of the guide rail 101 so as to drive the first mounting disc 107 to move in the Z direction; starting the second motor 105, wherein the second motor 105 drives the transmission unit 200, and the transmission unit 200 drives the rotation unit 400 to rotate, so that the first mounting disc 107 is driven to rotate; the third motor 106 is started, the third motor 106 drives the transmission unit 200, and the transmission unit 200 drives the rotation unit 400 to rotate, so that the spline shaft sleeved inside the support shaft 103 is driven to rotate.

Example 2

Referring to fig. 2 to 5, a second embodiment of the present utility model is based on the previous embodiment.

The transmission unit 200 comprises a first driving gear 201 and a first driven gear 202, the output end of the first motor 104 is connected with the first driving gear 201, one end of the first driving gear 201 is meshed with the first driven gear 202, and the output end of the first motor 104 is connected with the first driving gear 201 and the first driven gear 202 to mainly drive the lifting unit 300 to lift.

Further, the transmission unit 200 includes a first driving bevel gear 203 and a first driven bevel gear 204, the output end of the second motor 105 is connected to the first driving bevel gear 203, and one end of the first driving bevel gear 203 is in meshed connection with the first driven bevel gear 204.

Further, the lifting unit 300 comprises a screw 301 and a nut 302, one end of the screw 301 is fixedly connected with the first driven gear 202, the outer wall of the screw 301 is slidably connected with the sliding groove 103a, the outer wall of the screw 301 is rotatably connected with the nut 302, and one surface of the nut 302 is connected with the supporting shaft 103.

The first driven gear 202 drives the screw 301 to rotate, the screw 301 drives the nut 302 to rotate, and the nut 302 drives the support shaft 103 to slide on the inner wall of the guide rail 101, so as to drive the first mounting disc 107 to move in the Z direction.

Further, the transmission unit further comprises a second driving bevel gear 205 and a second driven bevel gear 206, the output end of the third motor 106 is connected with the second driving bevel gear 205, and one end of the second driving bevel gear 205 is in meshed connection with the second driven bevel gear 206.

The first driving bevel gear 203, the first driven bevel gear 204, the second driving bevel gear 205, and the second driven bevel gear 206 all drive the rotation unit 400 to rotate.

Specifically, one side of the first driven helical gear 204 is fixedly connected with a first worm 207, the outer wall of the first worm 207 is in meshed connection with a first worm wheel 208, one side of the second driven helical gear 206 is fixedly connected with a second worm 209, the outer wall of the second worm 209 is in meshed connection with a second worm wheel 210, the first driven helical gear 204 rotates to drive the first worm 207 to rotate, and the first worm 207 drives the first worm wheel 208 to rotate; the second driven helical gear 206 rotates to drive the second worm 209 to rotate, and the second worm 209 drives the second worm wheel 210 to rotate.

The rotary unit 400 comprises a first spline shaft 401 and a first transmission shaft 402, the first spline shaft 401 is connected with the first worm wheel 208 in a spline engagement manner, the inner wall of the first spline shaft 401 is fixedly connected with the first transmission shaft 402, and one end of the first transmission shaft 402 is fixedly connected with the first mounting disc 107.

The first worm wheel 208 rotates to drive the first spline shaft 401, and the first spline shaft 401 drives the first transmission shaft 402 to realize rotation of the first mounting disc 107.

Further, the rotating unit 400 further includes a second transmission shaft 403, one end of the second transmission shaft 403 is fixedly connected with the second worm wheel 210, one end of the second transmission shaft 403 is fixedly connected with the spline housing 404, the second worm wheel 210 rotates to drive the second transmission shaft 403 to rotate, and the second transmission shaft 403 drives the spline housing 404 to rotate, and finally drives the spline shaft inserted therein to rotate.

In summary, the flexible transmission mechanism better utilizes the space by adopting the mode of the sleeve shafts such as the screw 301, the first spline shaft 401, the spline housing 404 and the first transmission shaft 402, so that the main body can be positioned on the premise of not moving, and ineffective space movement is reduced.

Starting the first motor 104, wherein the first motor 104 drives the first driving gear 201 to rotate, the first driven helical gear 204 rotates, the lead screw 301 is driven to rotate, and the nut 302 pushes the supporting shaft 103 to slide on the inner wall of the guide rail 101 so as to drive the first mounting disc 107 to move in the Z direction; starting the second motor 105, wherein the second motor 105 drives the first driving bevel gear 203 to rotate, the first driven bevel gear 204 to rotate, the first worm 207 to rotate, the first worm wheel 208 to rotate, the first spline shaft 401 to rotate by the internal spline on the first worm wheel 208, and the first transmission shaft 402 to rotate, so that the first mounting disc 107 is realized; the third motor 106 is started, the third motor 106 drives the second driving bevel gear 205 to rotate, the second driven bevel gear 206 rotates, the second worm 209 rotates, the second worm wheel 210 rotates, the second transmission shaft 403 drives the spline housing 404 to rotate, and finally the spline shaft inserted therein is driven to rotate.

Example 3

Referring to FIGS. 6-8, a third embodiment of the present utility model, which is based on the above two embodiments, provides a positioning device, comprising

The positioning unit 500, the positioning unit 500 includes second mounting plate 501, second mounting plate 501 one side fixed connection limiting plate 502, limiting plate 502 one side fixed connection first track board 503, first track board 503 one side fixed connection second track board 504, positioning unit 500 and first mounting plate 107 fixed connection, second mounting plate 501 one side fixed connection first mounting plate 107.

The second installation plate 501 is kept away from limiting plate 502 one side fixed connection second spline shaft 505, second spline shaft 505 is as main force transmission part, second spline shaft 505 one end rotates the meshing and connects spline housing 404, second drive gear 506 of second spline shaft 505 one end fixed connection, second driven gear 507 is connected in the meshing of second drive gear 506 outer wall, second driven gear 507 one side fixed connection third transmission shaft 508, third transmission shaft 508 one end runs through limiting plate 502 and connects second track board 504, arc spout 504a is seted up to second track board 504 one side, arc spout 504a inner wall sliding connection sliding ring 509, sliding ring 509 inner wall fixed connection locating pin 510, locating pin 510 can be at arc spout 504a inner wall slip.

In sum, the positioning device realizes force transmission through the cooperation of the second spline shaft 505 and the spline housing 404, realizes insertion and extraction, is convenient to replace and maintain, and ensures the transmission precision of the whole mechanism. Inserting a second spline shaft 505 into a spline housing 404 in a flexible transmission mechanism, fixedly connecting a second mounting plate 501 with a first mounting plate 107, starting a second motor 105, and finally driving the first mounting plate 107 and the second mounting plate 501 to rotate so that a positioning pin 510 rotates around the center of the second spline shaft 505; the third motor 106 is started to finally drive the second spline shaft 505 to rotate, and the positioning pin 510 rotates around the center of the third transmission shaft 508 through the rotation of the second driving gear 506 and the second driven gear 507. The cooperation of the two rotational movements allows the positioning pin 510 to reach any position within a circle having a radius from the center of the second driving gear 506 and the second driven gear 507.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A flexible transmission mechanism, characterized in that: comprising the steps of (a) a step of,

the base (100), guide rail (101) is connected to base (100) one side, cavity (102) are seted up to base (100) inside, guide rail (101) inner wall sliding connection back shaft (103), spout (103 a) are seted up to back shaft (103) inside, cavity (102) and spout (103 a) intercommunication, first motor (104), second motor (105), third motor (106) are connected to base (100) one side fixed connection, first mounting disc (107) are connected to back shaft (103) one side fixed connection; the method comprises the steps of,

the transmission unit (200), transmission unit (200) connect elevating unit (300) and rotary unit (400), transmission unit (200) set up in base (100), elevating unit (300) set up in guide rail (101), rotary unit (400) set up in back shaft (103).

2. The flexible drive mechanism of claim 1, wherein: the transmission unit (200) comprises a first driving gear (201) and a first driven gear (202), the output end of the first motor (104) is connected with the first driving gear (201), and one end of the first driving gear (201) is connected with the first driven gear (202) in a meshed mode.

3. The flexible drive mechanism of claim 2, wherein: the transmission unit (200) comprises a first driving bevel gear (203) and a first driven bevel gear (204), the output end of the second motor (105) is connected with the first driving bevel gear (203), and one end of the first driving bevel gear (203) is connected with the first driven bevel gear (204) in a meshed mode.

4. A flexible drive mechanism as claimed in claim 2 or claim 3, wherein: the lifting unit (300) comprises a screw rod (301) and a screw nut (302), one end of the screw rod (301) is fixedly connected with the first driven gear (202), the outer wall of the screw rod (301) is connected with the sliding groove (103 a) in a sliding mode, the outer wall of the screw rod (301) is connected with the screw nut (302) in a rotating mode, and one face of the screw nut (302) is connected with the supporting shaft (103).

5. The flexible drive mechanism of claim 4, wherein: the transmission unit further comprises a second driving bevel gear (205) and a second driven bevel gear (206), the output end of the third motor (106) is connected with the second driving bevel gear (205), and one end of the second driving bevel gear (205) is meshed with the second driven bevel gear (206).

6. The flexible drive mechanism of claim 5, wherein: first worm (207) of first driven helical gear (204) one side fixed connection, first worm wheel (208) are connected in first worm (207) outer wall meshing, second worm (209) of second driven helical gear (206) one side fixed connection, second worm wheel (210) are connected in second worm (209) outer wall meshing.

7. A flexible drive mechanism as claimed in claim 3, 5 or 6, wherein: the rotating unit (400) comprises a first spline shaft (401) and a first transmission shaft (402), the first spline shaft (401) is connected with the first worm wheel (208) in an internal spline meshed mode, the first transmission shaft (402) is connected with the inner wall of the first spline shaft (401), and one end of the first transmission shaft (402) is fixedly connected with the first mounting disc (107).

8. The flexible drive mechanism of claim 7, wherein: the rotary unit (400) further comprises a second transmission shaft (403), one end of the second transmission shaft (403) is fixedly connected with the second worm wheel (210), and one end of the second transmission shaft (403) is fixedly connected with the spline housing (404).

9. A positioning device, characterized in that: a flexible drive mechanism comprising any one of claims 1 to 8; the method comprises the steps of,

the locating unit (500), locating unit (500) include second mounting plate (501), limiting plate (502) are connected to second mounting plate (501) one side, first track board (503) are connected to limiting plate (502) one side, second track board (504) are connected to first track board (503) one side, locating unit (500) are connected with first mounting plate (107).

10. The positioning device of claim 9, wherein: the utility model discloses a limiting plate (502) is kept away from to second mounting plate (501), limiting plate (502) one side fixed connection second spline shaft (505), spline housing (404) is connected in rotation of second spline shaft (505) one end, second driving gear (506) is connected in second spline shaft (505) one end fixed connection, second driven gear (507) are connected in second driving gear (506) outer wall meshing, third transmission shaft (508) are connected to second driven gear (507) one side, limiting plate (502) are run through to third transmission shaft (508) one end and are connected second track board (504), arc spout (504 a) are seted up to second track board (504) one side, arc spout (504 a) inner wall sliding connection sliding ring (509), sliding ring (509) inner wall fixed connection locating pin (510).