CN218487555U

CN218487555U - Floating damping and falling prevention device for gantry robot welding device

Info

Publication number: CN218487555U
Application number: CN202222582263.0U
Authority: CN
Inventors: 朱小明
Original assignee: Nanjing Auto Electric Co Ltd
Current assignee: Nanjing Auto Electric Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-02-17
Anticipated expiration: 2032-09-29

Abstract

The utility model relates to a floating shock absorption and falling prevention device for a gantry robot welding device, which comprises a limiting groove (8) arranged on a Y-axis beam (2), wherein a floating shock absorption device (9) is connected in the limiting groove (8), and the floating shock absorption device (9) is connected with a movable plate (3) through a fixed rod (10); the floating damping device (9) comprises a fixed support (91) and a shell (92), a floating waist-shaped hole (92 a) is formed in the shell (92), a floating assembly (93) and a puller bolt (94) are connected to two ends of the shell (92) through a floating column (96), and the floating column (96) is embedded in the floating waist-shaped hole (92 a); a disc spring (98) is sleeved on a screw rod (94 a) of the jacking bolt (94). The utility model has the advantages that eliminate and produce alternating force and transmission shaft vibrations in the rack and pinion meshing motion, prevent effectively that welding robot from falling and damaging, guarantee welding precision and quality.

Description

Floating damping and falling prevention device for gantry robot welding device

Technical Field

The utility model belongs to the technical field of the welding equipment technique and specifically relates to a shock attenuation and anti-falling device float for longmen robot welding set.

Background

The existing gantry robot welding device mainly comprises a vertical column, an X axis, a Y axis, a Z axis, a welding robot and other parts, and is shown in attached figures 1 and 2. The Y shaft, the Z shaft and the welding robot are moving parts, and the power form is that a motor reducer drives a gear rack to move. Due to the influence of design and production precision, in the process of gear and rack meshing motion, the meshing amount can be changed, the corresponding meshing force can also be changed, and the changed stress state can form alternating force, so that the walking shaft vibrates in the motion process. The vibration phenomenon can cause the welding gun of the welding robot to shake, the welding precision is reduced, and the welding quality is poor.

In addition, the Z axis is designed in a suspension mode, is installed on a moving plate, and the moving plate is installed on the Y axis and is fixed through a linear guide rail and a sliding block. In case receive external force influence, the slider drops, and movable plate, Z axle and welding robot can fall, cause the irreversible damage of welding robot.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is exactly in order to solve the problem that current gantry robot welding running gear easily shakes and easily drops, provides a shock attenuation and anti-falling device that floats for gantry robot welding set, can eliminate the rack and pinion meshing motion in-process and produce alternating force and transmission shaft vibrations, effectively prevents welding robot and falls and damage, guarantees welding precision and quality, the normal use of maintenance equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a floating damping and anti-falling device for a gantry robot welding device comprises a Y-axis cross beam and a linear guide rail on the Y-axis cross beam, wherein the linear guide rail is connected with a sliding block in sliding fit, the sliding block is connected with a moving plate, and the moving plate is connected with a Z-axis mounting seat and a welding robot;

the Y-axis cross beam is also connected with a limiting groove which is parallel to the linear guide rail, a floating damping device is connected in the limiting groove, and the floating damping device is connected with the movable plate through a fixed rod so as to realize damping of the movable plate in operation along the Y axis;

the floating damping device comprises a fixed support connected with the fixed rod, the fixed support is connected with a shell, the shell is provided with two symmetrical floating kidney-shaped holes, the floating kidney-shaped holes are arranged in parallel to the axis of the shell, one end of the shell is connected with a floating assembly, and the other end of the shell is connected with a puller bolt;

one end of the floating component is connected with a puller wheel which is embedded in the limiting groove and forms sliding guide fit, the other end of the floating component extends into the shell to be connected with a pair of floating columns, the two floating columns are respectively embedded in the floating waist-shaped holes on the corresponding sides and form sliding guide fit;

a screw rod of the puller bolt extends into the shell to be connected with a connecting column, and the connecting column is connected with the floating column so as to realize the connection of the puller bolt, the floating column and the floating assembly;

a disc spring is sleeved on a screw rod of the puller bolt and is arranged in the shell and clamped on one side of the connecting column.

Furthermore, the floating assembly comprises a cylindrical section and a wheel axle seat which are connected, the cylindrical section is embedded into the shell and connected with the floating column, the wheel axle seat is connected with a wheel axle, and the wheel axle penetrates through the center of the tightening wheel and is connected with the tightening wheel.

Furthermore, a floating cavity is arranged in the shell, the inner diameter of the floating cavity is not smaller than that of the disc spring, the diameters of the connecting column and the cylindrical section are the same as the inner diameter of the floating cavity, the connecting column and the cylindrical section slide in the floating cavity along the axis of the floating cavity, a guide hole is formed in one end of the floating cavity, and a screw of the puller bolt penetrates through the guide hole and extends into the floating cavity.

Furthermore, the limiting groove is arranged at the upper part of the Y-axis beam, and the opening direction of the limiting groove is opposite to the side where the moving plate is located.

Further, the fixed bolster includes a connecting plate and a pair of fixed ear, and fixed ear and connecting plate mutually perpendicular, the shell is cylindric structure, and it connects between two fixed ears.

Further, the axes of the floating assembly, the jacking bolt and the disc spring are coincident with the axis of the shell.

Compared with the prior art, the technical scheme of the utility model the advantage specifically lie in:

(1) The vibration generated in the meshing process of the gear and the rack is absorbed through the disc spring in the floating damping device, so that the positioning precision of the welding robot is improved, and the realization principle is that the compression amount of the disc spring is adjusted by screwing the jacking bolt during installation so as to adjust the size of the pre-tightening force and further absorb the vibration generated in the meshing motion process of the gear and the rack;

(2) Through fixed bolster and spacing groove, increase Z axle and robot protection mechanism, in case there is the trend that drops when the Z axle, the anterior meeting card of damping device that floats can be at the spacing inslot to restriction Z axle and welding robot downstream are protected to welding robot under the cooperation of fixed bolster and spacing groove.

Drawings

FIG. 1 is a schematic structural diagram of a gantry robot welding device in the prior art;

FIG. 2 is a schematic view of the connection between the Y-axis and the moving plate in the prior art;

FIG. 3 is a schematic view of the assembly of the floating shock absorbing and falling preventing device of the present invention with the Y-axis;

FIG. 4 is an external structural view of the floating shock absorber of the present invention;

fig. 5 is an internal structure view of the floating damper device of the present invention.

Detailed Description

Example 1

In order to make the utility model more clearly understood, the following description is combined with the accompanying drawings to further explain the floating damping and falling prevention device for the gantry robot welding device, and the specific embodiment described herein is only used for explaining the utility model, and is not used for limiting the utility model.

Referring to fig. 1 and 2, a shock attenuation and anti-falling device float for gantry robot welding set, including Y axle crossbeam 2 and the linear guide 6 on it, even there is sliding fit's slider 7 on the linear guide 6, slider 7 links to each other with movable plate 3, even has Z axle mount pad 4 and welding robot 5 on the movable plate 3, its characterized in that:

referring to fig. 3, the Y-axis beam 2 is further connected with a limiting groove 8 parallel to the linear guide 6, the limiting groove 8 is disposed at the upper portion of the Y-axis beam 2, and the opening of the limiting groove is opposite to the side where the moving plate 3 is located;

a floating damping device 9 is connected in the limiting groove 8, and the floating damping device 9 is connected with the moving plate 3 through a fixed rod 10 so as to realize damping of the moving plate in operation along the Y axis;

referring to fig. 4 and 5, the floating shock absorbing device 9 includes a fixing bracket 91 connected to the fixing rod 10, the fixing bracket 91 includes a connecting plate 911 and a pair of fixing lugs 912, and the fixing lugs 912 are perpendicular to the connecting plate 911;

a cylindrical shell 92 is connected between the two fixing lugs 912, two symmetrical floating kidney-shaped holes 92a are formed in the shell 92, the floating kidney-shaped holes 92a are parallel to the axis of the shell 92, one end of the shell 92 is connected with a floating component 93, and the other end of the shell 92 is connected with a puller bolt 94;

the floating component 93 comprises a cylindrical section 931 and an axle seat 932 which are connected, the cylindrical section 931 is embedded into the shell 92 and is connected with a pair of floating columns 96, the two floating columns 96 are respectively embedded into corresponding floating kidney-shaped holes 92a, the floating columns 96 and the floating kidney-shaped holes 92a form sliding guide fit, the axle seat 932 is connected with an axle 99, the axle 99 is connected with a jacking wheel 95 which is matched with the axle 99, the jacking wheel 95 is embedded into the limiting groove 8, and the two are also in sliding guide fit;

a floating cavity 92b is arranged in the outer shell 92, a guide hole 92c is formed in one end of the floating cavity 92b, a screw 94a of a puller bolt 94 penetrates through the guide hole 92c and extends into the floating cavity 92b to be connected with a connecting column 97, and the connecting column 97 is connected with a floating column 96;

a disc spring 98 is sleeved on a screw 94a of the puller bolt 94, the disc spring 98 is arranged in the floating cavity 92b and clamped on one side of the connecting column 97, and the inner diameter of the floating cavity 92b is not smaller than the diameter of the disc spring 98;

the connecting column 97 and the cylindrical section 931 have the same diameter as the inner diameter of the floating cavity 92b and slide along the axis thereof in the floating cavity 92 b;

in this embodiment, the axes of the floating assembly 93, the jacking bolt 94 and the disc spring 98 coincide with the axis of the housing.

When the movable plate 3 is used, in the process of the meshing motion of the gear and the rack along the Y axis of the movable plate 3, the tightening wheel 95 can stretch along the axial direction of the shell 92 along the change of the meshing amount, when the tightening wheel 95 is pressed, force can pass through the floating mechanism 93, the floating mechanism 93 drives the floating column 96 to move along the floating kidney-shaped hole 92a, the disc spring 98 contracts, the pressure transmitted by the tightening wheel 95 is absorbed, and the damping effect is achieved; in addition, when the movable plate 3 is prone to falling, the front portion of the floating shock absorption device 9 can be clamped in the limiting groove 8, and then the movable plate 3 is prevented from falling through the support.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a shock attenuation and anti-falling device float for gantry robot welding set, includes Y axle crossbeam (2) and linear guide (6) on it, even has sliding fit's slider (7) on linear guide (6), and slider (7) link to each other with movable plate (3), even has Z axle mount pad (4) and welding robot (5), its characterized in that on movable plate (3):

the Y-axis beam (2) is also connected with a limiting groove (8) which is parallel to the linear guide rail (6), a floating damping device (9) is connected in the limiting groove (8), and the floating damping device (9) is connected with the movable plate (3) through a fixed rod (10);

the floating shock absorption device (9) comprises a fixed support (91) connected with a fixed rod (10), a shell (92) is connected to the fixed support (91), two symmetrical floating waist-shaped holes (92 a) are formed in the shell (92), the floating waist-shaped holes (92 a) are arranged in parallel to the axis of the shell (92), one end of the shell (92) is connected with a floating assembly (93), and the other end of the shell (92) is connected with a puller bolt (94);

one end of the floating component (93) is connected with a puller wheel (95), the puller wheel (95) is embedded in the limiting groove (8), the puller wheel and the limiting groove form sliding guide fit, the other end of the floating component (93) extends into the shell (92) to be connected with a pair of floating columns (96), the two floating columns (96) are respectively embedded in floating waist-shaped holes (92 a) on the corresponding sides, and the two floating columns form sliding guide fit;

a screw rod (94 a) of the jacking bolt (94) extends into the shell (92) to be connected with a connecting column (97), and the connecting column (97) is connected with a floating column (96);

a disc spring (98) is sleeved on the screw rod (94 a), and the disc spring (98) is arranged in the shell (92) and clamped on one side of the connecting column (97).

2. The floating shock absorption and fall prevention device for a gantry robot welding device according to claim 1, characterized in that:

the floating assembly (93) comprises a cylindrical section (931) and a wheel axle seat (932), the cylindrical section (931) is embedded into the outer shell (92) and connected with the floating column (96), a wheel axle (99) is connected onto the wheel axle seat (932), and the wheel axle (99) penetrates through the center of the jacking wheel (95) and is connected with the jacking wheel (95).

3. The floating shock absorption and fall prevention device for a gantry robot welding device according to claim 2, characterized in that:

a floating cavity (92 b) is arranged in the outer shell (92), the inner diameter of the floating cavity (92 b) is not smaller than the diameter of the disc spring (98), the diameters of the connecting column (97) and the cylindrical section (931) are the same as the inner diameter of the floating cavity (92 b), the connecting column and the cylindrical section slide in the floating cavity (92 b) along the axis of the floating cavity, one end of the floating cavity (92 b) is provided with a guide hole (92 c), and a screw rod (94 a) of the puller bolt (94) penetrates through the guide hole (92 c) and extends into the floating cavity (92 b).

4. The floating shock absorption and fall prevention device for the gantry robot welding device according to any one of claims 1 to 3, wherein:

the limiting groove (8) is arranged at the upper part of the Y-axis beam (2), and the opening direction of the limiting groove is opposite to the side where the moving plate (3) is located.

5. The floating shock absorption and fall prevention device for the gantry robot welding device according to any one of claims 1 to 3, wherein:

the fixing support (91) comprises a connecting plate (911) and a pair of fixing lugs (912), the fixing lugs (912) are perpendicular to the connecting plate (911), the shell (92) is of a cylindrical structure, and the shell is connected between the two fixing lugs (912).

6. The floating shock absorption and fall prevention device for the gantry robot welding device according to any one of claims 1 to 3, wherein:

the axes of the floating assembly (93), the jacking bolt (94) and the disc spring (98) are coincident with the axis of the shell (92).