CN216607746U

CN216607746U - Pneumatic counterweight device of welding robot workstation

Info

Publication number: CN216607746U
Application number: CN202122668928.5U
Authority: CN
Inventors: 刘海军; 李金海; 汪存宝
Original assignee: Hefei Taijin Automation Technology Co ltd
Current assignee: Hefei Taijin Automation Technology Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-27
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a pneumatic counterweight device of a welding robot workstation, which adopts the technical scheme that: including work platform, be equipped with welding robot body in the work platform, work platform one side is equipped with elevating system, the work platform opposite side is equipped with pneumatic counter weight mechanism, pneumatic counter weight mechanism includes cylinder and two mount pads, two mount pad one side all with work platform fixed connection, a welding robot workstation pneumatic counter weight device's beneficial effect is: according to the utility model, by arranging the pneumatic counterweight mechanism, the upward lifting force generated by the cylinder can be always equal to the downward gravity of the welding robot body, so that the bearing load of the lifting mechanism is greatly reduced, the power consumption is saved, the mechanical abrasion is reduced, redundant gas in the cylinder can be discharged by adjusting the precise pressure reducing valve, the gas pressure in the cylinder cavity is always kept stable, and the stability and the safety of the descending process are ensured.

Description

Pneumatic counterweight device of welding robot workstation

Technical Field

The utility model relates to the technical field of pneumatic balance weights, in particular to a pneumatic balance weight device of a welding robot workstation.

Background

Along with the continuous deepening and acceleration of the national industrialization degree, the automation degree of the mechanical manufacturing industry production is higher and higher. The welding robot workstation is used as an important component of an automatic production line of a welding structural part, so that the welding efficiency is improved, and the welding quality and the appearance are ensured. The counterweight device is applied to the C-shaped support of the welding machine workstation, so that the load of the lifting drive motor is greatly reduced, and meanwhile, the protection effect of preventing falling is played to the welding robot under the condition that the motor self-locking fails.

The existing mechanical counterweight device is characterized in that a cantilever and a counterweight block of a welding robot are respectively connected to two ends of a steel wire rope (or a chain) through a pulley (or a chain wheel) to realize the functions, but the existing mechanical counterweight device has the defects of large occupied space, high noise, easiness in abrasion, difficulty in maintenance and the like, and meanwhile, certain potential safety hazards also exist on the site.

Disclosure of Invention

Therefore, the pneumatic counterweight device for the welding robot workstation can replace the existing mechanical counterweight device, has the advantages of small space, no noise, no abrasion, good maintenance and the like, and greatly reduces potential safety hazards so as to solve the problems mentioned in the background technology.

In order to achieve the above purpose, the utility model provides the following technical scheme: a pneumatic counterweight device for a welding robot workstation comprises a workstation, wherein a welding robot body is arranged in the workstation, a lifting mechanism is arranged on one side of the workstation, and a pneumatic counterweight mechanism is arranged on the other side of the workstation;

pneumatic counter weight mechanism includes cylinder and two mount pads, two mount pad one side all with workstation fixed connection, cylinder top and bottom respectively with two mount pad fixed connection, the cylinder bottom is equipped with the trachea, install solenoid directional valve, accurate relief pressure valve and choke valve on the trachea in proper order, be located the top the mount pad middle part has been seted up and has been run through the groove, the piston rod of cylinder passes and runs through groove and top fixedly connected with connecting plate, workstation a side surface has seted up logical groove, the connecting plate is through leading to groove and workstation sliding connection, cylinder piston rod one end and welding robot body one side fixed connection are kept away from to the connecting plate, the muffler is installed at the cylinder top.

Specifically, through setting up pneumatic counter weight mechanism, can let upwards that the cylinder produced hold in the palm the lifting force and the downward gravity of welding robot body equals all the time to alleviate elevating system's load-bearing greatly, both practiced thrift the power consumption and reduced mechanical wear, through adjusting accurate relief pressure valve, can be so that unnecessary gas is discharged in the cylinder, make cylinder intracavity gas pressure remain stable all the time, thereby guarantee the steady and safety of decline process.

Preferably, elevating system includes casing and motor, workstation keeps away from logical groove side surface and has seted up the mounting groove, casing one end and mounting groove inner wall fixed connection, motor fixed mounting is bottom in the casing.

Specifically, through motor drive, can drive the welding robot body and carry out the elevating movement.

Preferably, a plurality of heat dissipation holes are formed in the surface of the top of the shell, and the heat dissipation holes are distributed in an even array.

Specifically, through setting up the louvre, can effectively improve heat dispersion, extension motor life.

Preferably, the bottom of the shell is fixedly connected with two supporting plates, the output shaft of the motor is fixedly connected with a worm, and two ends of the worm are respectively movably connected with the tops of the two supporting plates through bearings.

Specifically, two bearings respectively provide the function of rotary support for the worm.

Preferably, the inside bull stick and the gear of still being equipped with of casing, the bull stick both ends run through the casing both sides respectively and rotate with the casing and be connected, gear and coaxial setting of bull stick and middle part and bull stick fixed connection, the gear bottom is connected with the worm meshing.

Specifically, the bull stick provides the supporting role for the gear, can play the transmission effect through the gear for the worm drives the gear rotatory when being rotated by motor drive, thereby drives the rack through the gear and carries out elevating movement.

Preferably, a rack is arranged on one side inside the work platform, one side of the rack is meshed with the gear, and one side of the rack, far away from the gear, is fixedly connected with one side, far away from the connecting plate, of the welding robot body.

Specifically, the rack plays the connection effect for the gear can drive the rack and go up and down when rotatory, thereby drives the welding robot body and goes up and down.

Preferably, vertical plates are arranged on two sides of the rack, and the tops and the bottoms of the two vertical plates are fixedly connected with the top and the bottom in the work station respectively.

Specifically, the vertical plate has a limiting effect on the rack.

Preferably, the two sides of the rack are fixedly connected with sliding blocks, the surface of one side of each of the two vertical plates is provided with a guide groove, and the two sliding blocks are respectively connected with the two vertical plates in a sliding manner through the two guide grooves.

Specifically, when the rack goes up and down, the two sliding blocks are driven to slide in the guide grooves on the two vertical plates respectively, so that the rack is guided and supported in a moving manner.

Preferably, the stand column is fixedly connected to one side inside the work platform, and the stand column penetrates through the connecting plate and is in sliding connection with the connecting plate.

Specifically, when the welding robot body goes up and down, can drive the connecting plate and slide along the stand, the stand plays the effect of sliding guide and support.

Preferably, the top of the outer side of the upright post is sleeved with a spring, the top of the spring is fixedly connected with the top of the working platform, and the bottom of the spring is fixedly connected with the top of the connecting plate.

Specifically, when the welding robot body goes up and down, the connecting plate can be driven to move, so that the spring is stretched or extruded, the spring generates elastic deformation, a certain buffering effect is achieved, and mechanical wear is reduced.

The embodiment of the utility model has the following advantages:

1. according to the utility model, by arranging the pneumatic counterweight mechanism, the upward lifting force generated by the cylinder can be always equal to the downward gravity of the welding robot body, so that the bearing load of the lifting mechanism is greatly reduced, the power consumption is saved, the mechanical abrasion is reduced, redundant gas in the cylinder can be discharged by adjusting the precise pressure reducing valve, and the gas pressure in the cylinder cavity is always kept stable, so that the stability and the safety of the descending process are ensured, the defects of large occupied space, easiness in abrasion, difficulty in maintenance and the like in the prior art are effectively solved, and meanwhile, the problem of certain potential safety hazard exists on site.

2. By arranging the silencer, the utility model can greatly reduce the noise generated by the operation of the cylinder in the operation process of the cylinder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic diagram of a front structure provided by the present invention;

FIG. 4 is a cross-sectional view of the overall structure provided by the present invention;

in the figure: 1. a work station; 2. welding the robot body; 3. a cylinder; 4. a mounting seat; 5. an air tube; 6. an electromagnetic directional valve; 7. a precision pressure reducing valve; 8. a throttle valve; 9. a connecting plate; 10. a muffler; 11. a housing; 12. a motor; 13. a through groove; 14. heat dissipation holes; 15. a support plate; 16. a worm; 17. a rotating rod; 18. a gear; 19. a rack; 20. a vertical plate; 21. a slider; 22. a column; 23. a spring.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-4, the pneumatic counterweight device for the welding robot workstation, provided by the utility model, comprises a work platform 1, wherein a welding robot body 2 is arranged in the work platform 1, a lifting mechanism is arranged on one side of the work platform 1, and a pneumatic counterweight mechanism is arranged on the other side of the work platform 1;

the pneumatic counterweight mechanism comprises an air cylinder 3 and two mounting seats 4, one side of each of the two mounting seats 4 is fixedly connected with a work platform 1, the top and the bottom of the air cylinder 3 are respectively fixedly connected with the two mounting seats 4, an air pipe 5 is arranged at the bottom of the air cylinder 3, an electromagnetic directional valve 6, a precision pressure reducing valve 7 and a throttle valve 8 are sequentially arranged on the air pipe 5, a through groove is formed in the middle of the mounting seat 4 positioned at the top, a piston rod of the air cylinder 3 penetrates through the through groove, a connecting plate 9 is fixedly connected to the top of the air cylinder 3, a through groove 13 is formed in the surface of one side of the work platform 1, the connecting plate 9 is slidably connected with the work platform 1 through the through groove 13, one end, far away from the piston rod, of the air cylinder 3 is fixedly connected with one side of the welding robot body 2, and a silencer 10 is arranged at the top of the air cylinder 3;

in the present embodiment, the cylinder 3, the electromagnetic directional valve 6, the precision pressure reducing valve 7 and the throttle valve 8 are all existing devices known to those skilled in the art, and the noise generated during the operation of the cylinder 3 can be greatly reduced by providing the muffler 10.

Wherein, in order to realize the purpose that welding robot body 2 goes up and down, this device adopts following technical scheme to realize: the lifting mechanism comprises a shell 11 and a motor 12, a mounting groove is formed in the surface of one side, away from a through groove 13, of the work platform 1, one end of the shell 11 is fixedly connected with the inner wall of the mounting groove, the motor 12 is fixedly installed at the bottom in the shell 11, a plurality of heat dissipation holes 14 are formed in the surface of the top of the shell 11, the heat dissipation holes 14 are distributed in an even array, two supporting plates 15 are fixedly connected to the bottom in the shell 11, a worm 16 is fixedly connected to an output shaft of the motor 12, two ends of the worm 16 are movably connected with the tops of the two supporting plates 15 through bearings respectively, a rotating rod 17 and a gear 18 are further arranged inside the shell 11, two ends of the rotating rod 17 penetrate through two sides of the shell 11 respectively and are rotatably connected with the shell 11, the gear 18 and the rotating rod 17 are coaxially arranged, the middle of the gear is fixedly connected with the rotating rod 17, and the bottom of the gear 18 is meshed with the worm 16, a rack 19 is arranged on one side inside the work platform 1, one side of the rack 19 is meshed with the gear 18, one side of the rack 19, which is far away from the gear 18, is fixedly connected with one side of the welding robot body 2, which is far away from the connecting plate 9, vertical plates 20 are arranged on two sides of the rack 19, tops and bottoms of the two vertical plates 20 are fixedly connected with the top and the bottom inside the work platform 1 respectively, slide blocks 21 are fixedly connected with two sides of the rack 19, guide grooves are formed in the surface of one side of each of the two vertical plates 20, and the two slide blocks 21 are slidably connected with the two vertical plates 20 respectively through the two guide grooves;

wherein, in order to realize the purpose of motion direction and reducing wear, this device adopts following technical scheme to realize: work platform 1 inside one side fixedly connected with stand 22, stand 22 run through connecting plate 9 and with connecting plate 9 sliding connection, stand 22 outside top cover is equipped with spring 23, top fixed connection in spring 23 top and the work platform 1, spring 23 bottom and connecting plate 9 top fixed connection.

The using process of the utility model is as follows: when the utility model is used, the motor 12 is started, the worm 16 can be driven to rotate through the output shaft of the motor 12, the worm 16 drives the gear 18 meshed with the worm to rotate, so that the gear 18 drives the rack 19 meshed with the worm to move up and down, the two sliders 21 respectively slide in the guide grooves on the two vertical plates 20 to guide and support the movement of the rack 19, the rack 19 drives the welding robot body 2 to move up and down, so that the connecting plate 9 is driven to slide along the upright post 22, the upright post 22 plays a role in sliding guide and support, the connecting plate 9 moves to stretch or extrude the spring 23, so that the spring 23 generates elastic deformation, plays a certain role in buffering, reduces mechanical wear, and simultaneously, in the process of rising, compressed air is continuously supplied to the lower cavity of the cylinder 3 through the air pipe 5, let upwards the support power of lifting that makes progress that cylinder 3 produced all the time equal with the downward gravity of welding robot body 2, the bearing load of elevating system has been alleviateed greatly, both practiced thrift the power consumption and reduced mechanical wear, in the process of falling, along with slowly going back the shrink of cylinder 3 piston rod, the gas of cavity constantly is compressed under cylinder 3, through adjusting precision reducing valve 7, can make unnecessary gas discharged, intracavity gas pressure remains stable throughout in this in-process, thereby the steady and safety of decline process have been guaranteed, in cylinder 3 operation process, can the noise that produces when cylinder 3 moves of significantly reducing through muffler 10.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. The utility model provides a pneumatic counter weight device of welding robot workstation, includes workstation (1), its characterized in that: a welding robot body (2) is arranged in the work platform (1), a lifting mechanism is arranged on one side of the work platform (1), and a pneumatic counterweight mechanism is arranged on the other side of the work platform (1);

the pneumatic counterweight mechanism comprises an air cylinder (3) and two mounting seats (4), one side of each of the two mounting seats (4) is fixedly connected with a work platform (1), the top and the bottom of the air cylinder (3) are respectively fixedly connected with the two mounting seats (4), an air pipe (5) is arranged at the bottom of the air cylinder (3), an electromagnetic reversing valve (6), a precise pressure reducing valve (7) and a throttle valve (8) are sequentially arranged on the air pipe (5), a through groove is formed in the middle of the mounting seat (4) at the top, a piston rod of the air cylinder (3) penetrates through the through groove, a connecting plate (9) is fixedly connected to the top of the air cylinder, a through groove (13) is formed in the surface of one side of the work platform (1), the connecting plate (9) is slidably connected with the work platform (1) through the through groove (13), one end, far away from the air cylinder (3), of the piston rod is fixedly connected with one side of the welding robot body (2) through the connecting plate (9), and a silencer (10) is arranged at the top of the cylinder (3).

2. The pneumatic counterweight device for the welding robot workstation according to claim 1, wherein: elevating system includes casing (11) and motor (12), workstation (1) is kept away from logical groove (13) a side surface and has been seted up the mounting groove, casing (11) one end and mounting groove inner wall fixed connection, bottom in casing (11) motor (12) fixed mounting.

3. The pneumatic counterweight device for the welding robot workstation according to claim 2, wherein: a plurality of heat dissipation holes (14) are formed in the surface of the top of the shell (11), and the heat dissipation holes (14) are evenly distributed in an array mode.

4. The pneumatic counterweight device for the welding robot workstation according to claim 3, wherein: the bottom fixedly connected with two backup pads (15) in casing (11), motor (12) output shaft fixedly connected with worm (16), worm (16) both ends are respectively through bearing and two backup pad (15) top swing joint.

5. The pneumatic counterweight device for the welding robot workstation according to claim 4, wherein: casing (11) inside bull stick (17) and gear (18) still be equipped with, bull stick (17) both ends run through casing (11) both sides respectively and rotate with casing (11) and be connected, gear (18) and bull stick (17) coaxial setting and middle part and bull stick (17) fixed connection, gear (18) bottom is connected with worm (16) meshing.

6. The pneumatic counterweight device for the welding robot workstation according to claim 5, wherein: workstation (1) inside one side is equipped with rack (19), rack (19) one side is connected with gear (18) meshing, gear (18) one side is kept away from in rack (19) and welding robot body (2) keep away from connecting plate (9) one side fixed connection.

7. The pneumatic counterweight device for the welding robot workstation according to claim 6, wherein: vertical plates (20) are arranged on two sides of the rack (19), and the tops and the bottoms of the two vertical plates (20) are fixedly connected with the top and the bottom in the work station (1) respectively.

8. The pneumatic counterweight device for the welding robot workstation according to claim 7, wherein: the two sides of the rack (19) are fixedly connected with sliding blocks (21), the surface of one side of each of the two vertical plates (20) is provided with a guide groove, and the two sliding blocks (21) are respectively connected with the two vertical plates (20) in a sliding mode through the two guide grooves.

9. The pneumatic counterweight device for the welding robot workstation according to claim 1, wherein: workstation (1) inside one side fixedly connected with stand (22), stand (22) run through connecting plate (9) and with connecting plate (9) sliding connection.

10. The pneumatic counterweight device for the welding robot workstation according to claim 9, wherein: the top cover in stand (22) outside is equipped with spring (23), top fixed connection in spring (23) top and the workstation (1), spring (23) bottom and connecting plate (9) top fixed connection.