CN217233960U

CN217233960U - Joint motion device based on cylinder and guide rail

Info

Publication number: CN217233960U
Application number: CN202220310426.7U
Authority: CN
Inventors: 宿月文; 郭彩霞
Original assignee: Baoji University of Arts and Sciences
Current assignee: Baoji University of Arts and Sciences
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-08-19
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a joint movement device based on cylinder and guide rail, including connecting gradually driven power module, power transition module and execution module, power module is that cylinder drive structure, power transition module are sharp drive structure, execution module are the slip transmission structure. The power module mainly comprises a cylinder supporting plate, a guide shaft and a driving cylinder. The power transition module mainly comprises a linear driver which can be connected in a replaceable way. The execution module mainly comprises a motion plate, a U-shaped connecting plate and a fastening pin shaft. The U-shaped connecting plate is detachably clamped on the symmetrical side wall of the U-shaped connecting plate to form a conical shaft sleeve, and two ends of the fastening pin shaft are matched with a conical surface formed on the inner wall of the conical shaft sleeve in a sleeved mode. This device adopts cylinder slider joint motion, and the motion process is more stable accurate, through the effectual transmission stroke that has increased of linear actuator to through the cooperation of the fastening pin axle of tapered structure and tapered axle sleeve, eliminate fit-up gap, improve transmission precision.

Description

Joint motion device based on cylinder and guide rail

Technical Field

The utility model relates to a straight reciprocating motion technical field especially relates to a joint motion device based on cylinder and guide rail.

Background

With the development of society and the progress of science and technology, the technology is more and more advanced, and in the middle of the intense development of the technology of reciprocating linear motion platform, the problems of unstable motion, inaccurate positioning, short transmission distance and the like exist in the existing mobile motion platform. For example, for a belt-driven mobile platform, the applicable place is relatively limited, the fixed transmission ratio cannot be ensured, and the movement efficiency is low; the center distance of the chain-driven moving platform is larger, and the transmission stability is poorer; the hydraulic mobile platform has inevitable oil leakage in the motion process, has low transmission efficiency, is not suitable for long-distance transmission and is not easy to install and maintain; and for the lead screw moving motion platform, the self-locking can not be realized, and the use condition is harsh. Therefore, the utility model provides a simple structure, cylinder and guide rail joint motion device of easily assembling, higher transmission stationarity and transmission precision of reaching that can be quick.

Disclosure of Invention

To the problem that exists, the utility model aims at providing a joint movement device based on cylinder and guide rail contains power module, power transition module and execution module, and three module complements each other, closely cooperates, has constituteed cylinder and guide rail joint movement device jointly. An ADN type cylinder in the power module provides power for the whole device, so that the whole device can stably run in the working process; the power transition module starts the processes of power transition and power transmission in the whole device; the whole execution module adopts the slider slide rail group to operate, and the slider slide rail group has the characteristics of simple structure, higher precision, stable operation and the like.

In order to achieve the above object, the utility model adopts the following technical scheme: a joint movement device based on cylinder and guide rail which characterized in that: the combined movement device comprises a power module, a power transition module and an execution module which are sequentially connected and driven, wherein the power module is of a cylinder driving structure, the power transition module is of a linear driving structure, and the execution module is of a sliding transmission structure.

Preferably, the power module comprises a cylinder supporting plate, guide shafts are symmetrically arranged on two sides of the cylinder supporting plate in a penetrating mode, two ends of each guide shaft are sequentially connected and fixed with a bottom plate and a flexible connecting plate which are parallel to each other, and a driving cylinder for driving the flexible connecting plate is arranged on one side, close to the flexible connecting plate, of the cylinder supporting plate.

Preferably, the power transition module comprises a linear driver arranged on the outer side of the flexible connecting plate, a guide rail fixing plate is horizontally arranged at the bottom end of the cylinder supporting plate, the outer end of the linear driver is connected with the guide rail fixing plate in a sliding manner, and a linear guide rail connected with the execution module is arranged at the bottom of the linear driver.

Preferably, the execution module comprises a moving plate which is arranged on the guide rail fixing plate in a sliding manner with the linear driver, a U-shaped connecting plate which is nested with the linear guide rail is arranged on the moving plate, and a fastening pin shaft is arranged at the overlapping part of the U-shaped connecting plate and the linear guide rail in a penetrating manner.

Preferably, the U-shaped connecting plate symmetrical side wall is detachably clamped with a conical shaft sleeve, and two ends of the fastening pin shaft are matched with conical surfaces sleeved on the inner wall of the conical shaft sleeve.

Preferably, the fastening pin shaft is symmetrically provided with snap rings at two sides in the straight guide rail limit, and each conical shaft sleeve inner wall is provided with chip collecting grooves along the circumferential interval.

The invention is also characterized in that:

(1) the structure is simple: the number of components is small, the assembly and the maintenance are easy, and the operation is simple;

(2) the working precision is high: the motion of the linear guide rail is realized by the rolling of the steel ball, not only the friction coefficient is reduced (the utility model can be reduced to 1/50 of the sliding guide rail), the difference of dynamic and static friction resistance curves also becomes very small, the motion is stable, the impact and the vibration are reduced, the creeping phenomenon is not easy to generate, the um grading positioning precision can be reached, and the precision and the stability of the device are improved;

(3) energy conservation and environmental protection: the device is a cylinder and sliding block combined motion platform, power is provided by a cylinder, the device can work only by providing power for the air pump, other auxiliary tools are not needed, and no pollution is caused in the working process.

The invention has the beneficial effects that: this device adopts cylinder slider joint motion, and the motion process is more stable accurate, through the effectual transmission stroke that has increased of linear actuator to through the cooperation of the fastening pin axle of toper type structure and toper type axle sleeve, eliminate fit-up gap, improve the transmission precision. The device has the advantages of simple structure, low cost, easy assembly and maintenance and convenient popularization and use.

Drawings

Fig. 1 is a schematic view of the overall structure of the joint exercise device of the present invention.

Fig. 2 is the utility model discloses fastening pin shaft assembly structure chart.

Fig. 3 is a structure diagram of the cone-shaped shaft sleeve of the present invention.

Fig. 4 is a cross-sectional view of the structure of fig. 2 according to the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the technical solution of the present invention with reference to the accompanying drawings and embodiments.

Referring to the attached drawings 1-4, the combined motion device based on the air cylinder and the guide rail comprises a power module, a power transition module and an execution module which are sequentially connected and driven, wherein the power module is an air cylinder driving structure, the power transition module is a linear driving structure, and the execution module is a sliding transmission structure. The power module supplies power to the whole device through the air cylinder driving structure, so that the whole device can stably run in the working process; the power transition module starts the processes of power transition and power transmission in the whole device through a linear driving structure; the execution module drives the external equipment to operate through the sliding transmission structure, and the three modules supplement each other and are tightly matched to form the cylinder and guide rail combined motion device. Compared with conventional belt transmission, chain transmission, hydraulic transmission and the like, the belt type hydraulic transmission has higher transmission stability and transmission precision. The execution module can be matched with different transmission strokes so as to adapt to the transmission of different components.

Specifically, as shown in fig. 1, the power module includes a cylinder support plate 1, guide shafts 2 are symmetrically arranged on two sides of the cylinder support plate, a bottom plate 3 and a flexible connecting plate 4 which are parallel to each other are sequentially connected and fixed to two ends of each guide shaft 2, and a driving cylinder 5 (preferably, an ADN-type cylinder) for driving the flexible connecting plate 4 is arranged on one side of the cylinder support plate 1, which is close to the flexible connecting plate 4. Wherein, preferably, a flexible joint 14 is arranged between the piston end of the driving cylinder 5 and the flexible connecting plate 4 to eliminate the deflection error between the driving cylinder 5 and the flexible connecting plate 4. When the driving air cylinder 5 acts, the driving air cylinder 5 can realize accurate transmission of power to the flexible connecting plate 4 under the guiding action of the symmetrical guide shaft 2 and the cooperation of the flexible joint 14.

Specifically, as shown in fig. 1, the power transition module includes a linear actuator 6 disposed outside the flexible connection plate 4, a guide rail fixing plate 7 is horizontally disposed at the bottom end of the cylinder supporting plate 1, the outer end of the linear actuator 6 is slidably connected to the guide rail fixing plate 7, and a linear guide rail 8 connected to the execution module is disposed at the bottom of the linear actuator 6. Wherein the reciprocating type linear actuator structure of linear actuator 6 preferred DGCK model, it can be changed to satisfy the drive length of different strokes, the utility model provides a drive stroke is 730 mm. Under the action of the accurate power transmission of the driving cylinder 5 to the flexible connecting plate 4, the driving linear driver 6 slides on the guide rail fixing plate 7, and particularly, a guide rail 15 embedded into the linear driver 6 to slide is arranged on the guide rail fixing plate 7. Under the driving action of the driving cylinder 5, the linear guide rail 8 on the linear driver 6 reciprocates to increase the driving stroke of the motion device and drives the execution module to reciprocate so as to effectively increase the driving stroke of the combined motion device. And the linear driver 6 can be detachably connected with the flexible connecting plate 4 and is a driving assembly for accommodating different strokes.

Specifically, as shown in fig. 1, the execution module includes a moving plate 9 slidably disposed on the guide rail fixing plate 7 with the linear actuator 6, and specifically, the bottom of the moving plate 9 is also slidably embedded on the guide rail 15 (preferably, a steel ball sliding structure to reduce sliding friction and improve transmission accuracy). The moving plate 9 is provided with a U-shaped connecting plate 10 nested in the linear guide rail 8, and a fastening pin shaft 11 penetrates through the overlapping part of the U-shaped connecting plate 10 and the linear guide rail 8. The U-shaped connecting plate 10 and the linear guide rail 8 are simultaneously penetrated through by the fastening pin shaft 11 and connected, and the moving plate 9 and an external part connected with the moving plate 9 are driven to reciprocate under the driving state of the reciprocating movement of the linear guide rail 8, so that the stable and accurate transmission effect of the power of the external part is realized.

Preferably, a buffer plate 16 is further provided at one side of the guide fixing plate 7, and when the moving plate 9 moves to the end, the buffer plate 16 plays a role of buffering the moving plate 9.

In order to eliminate the influence on the transmission precision of the moving plate 9 caused by the assembly clearance between the fastening pin shaft 11 and the U-shaped connecting plate 10, as shown in fig. 2, a tapered shaft sleeve 12 is detachably clamped on the symmetrical side wall of the U-shaped connecting plate 10, specifically, the tapered shaft sleeve 12 is embedded in a clamping block 17, and a clamping block 16 is clamped on the symmetrical side wall of the U-shaped connecting plate 10. Two ends of the fastening pin shaft 11 are provided with conical surfaces 11a which are matched with the inner wall of the conical shaft sleeve 12 in a sleeved mode. During assembly, the fastening pin shaft 11 is fastened and penetrated in the linear guide rail 8, the conical shaft sleeve 12 is sleeved at two ends of the fastening pin shaft 11, the fastening assembly of the conical surface 11a and the conical shaft sleeve 12 is realized through the conical matching of the conical surface and the inner hole of the conical shaft sleeve 12, and finally the positions of the conical shaft sleeve 12 are limited by clamping the clamping blocks 17 at two sides on two sides of the U-shaped connecting plate 10, so that the penetrating gap between the fastening pin shaft 11 and the U-shaped connecting plate 10 is eliminated, and the transmission precision is further improved.

In order to avoid the problem that the linear guide rail 8 and the fastening pin 11 are obliquely penetrated to affect the linear driving of the moving plate 9, the fastening pin 11 is symmetrically provided with clamping rings 13 for centering the linear guide rail 8, specifically, the fastening pin 11 is provided with a groove (not shown in the figure) for sleeving the clamping rings 13, and the clamping rings 13 at the two sides limit the centering verticality of the linear guide rail 8 and the fastening pin 11, so that the problem that the linear guide rail 8 and the moving plate 9 are obliquely driven is avoided.

Further, in order to avoid the problem that the transmission accuracy is affected by the fact that the worn chips of the fastening pin 11 accelerate the transition wear of the fastening pin 11, as shown in fig. 3, chip collecting grooves 12a are formed in the inner wall of each conical shaft sleeve 12 at intervals along the circumferential direction. The chip and slag generated by normal wear of the fastening pin shaft 11 are collected in the chip collecting groove 12a, and the chip collecting groove 12a is preferably of the same inclined plane structure as the conical shaft sleeve 12, so that the chip and slag can flow out quickly, and the collection of the chip and slag in the chip collecting groove 12a is reduced.

The principle of the utility model is that: the driving cylinder 5 acts, under the guiding action of the symmetrical guide shafts 2 and the cooperation of the flexible joints 14, the driving cylinder 5 realizes accurate transmission of power of the flexible connecting plate 4, so that the driving linear driver 6 is driven to slide on the guide rail fixing plate 7, the transmission stroke of the moving device is increased through the reciprocating movement of the linear guide rail 8 on the linear driver 6, the moving plate 9 and an external part connected with the moving plate 9 are driven to reciprocate, and the stable and accurate transmission effect of the power of the external part is realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A joint movement device based on cylinder and guide rail which characterized in that: the combined motion device comprises a power module, a power transition module and an execution module which are sequentially connected and driven, wherein the power module is of an air cylinder driving structure, the power transition module is of a linear driving structure, and the execution module is of a sliding transmission structure.

2. A cylinder and rail based combined motion device according to claim 1, wherein: the power module comprises a cylinder supporting plate (1), guide shafts (2) are symmetrically arranged on two sides of the cylinder supporting plate in a penetrating mode, two ends of each guide shaft (2) are sequentially connected and fixed with a bottom plate (3) and a flexible connecting plate (4) which are parallel to each other, and a driving cylinder (5) for driving the flexible connecting plate (4) is arranged on one side, close to the flexible connecting plate (4), of the cylinder supporting plate (1).

3. A cylinder and rail based joint movement apparatus according to claim 2, wherein: the power transition module is including setting up linear actuator (6) in the flexible connection board (4) outside, cylinder layer board (1) bottom level is provided with guide rail fixed plate (7), the outer end of linear actuator (6) with guide rail fixed plate (7) sliding connection, linear actuator (6) bottom have with linear guide (8) that the execution module is connected.

4. A cylinder and rail based combined motion device according to claim 3, wherein: the execution module comprises a moving plate (9) which is arranged on the guide rail fixing plate (7) in a sliding mode with the linear driver (6), a U-shaped connecting plate (10) which is nested with the linear guide rail (8) is arranged on the moving plate, and a fastening pin shaft (11) penetrates through the overlapping portion of the U-shaped connecting plate (10) and the linear guide rail (8).

5. A cylinder and rail based joint movement apparatus according to claim 4, wherein: u type connecting plate (10) symmetry lateral wall detachable card cover has tapered axle sleeve (12), the both ends of fastening pin axle (11) set up to the cooperation tapered surface (11a) that tapered axle sleeve (12) inner wall cover was established.

6. A cylinder and rail based combined motion device according to claim 5, characterised in that: clamping rings (13) limited to the linear guide rails (8) are symmetrically arranged on two sides of the fastening pin shaft (11), and chip collecting grooves (12a) are formed in the inner wall of each conical shaft sleeve (12) at intervals along the circumferential direction.