Bottom steering mechanism of welding robot

Abstract

The utility model discloses a bottom steering mechanism of a welding robot, which relates to the technical field of welding robots, and comprises a bottom plate fixed on a mobile vehicle, the top of the bottom plate is connected with a reduction gear box, one side of the reduction gear box is connected with a driving device, and the other side of the reduction gear box is connected with a motor. The rotating end of the driving device is connected with a reduction gear set in the reduction gear box, the top of the reduction gear box is rotationally connected with a rotating shaft, the rotating shaft is connected with the reduction gear set in the reduction gear box, and the top of the rotating shaft is connected with a rotating disc. According to the bottom steering mechanism of the welding robot, the pressure-bearing disc and the pressure-bearing block are arranged at the bottom of the rotating disc, when the rotating disc rotates, pressure can be transmitted to the pressure-bearing block, the supporting capacity of the rotating disc is improved through the reaction of the pressure-bearing block, and meanwhile the situation of excessive abrasion during rigid connection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding robot technical field more specifically relates to a welding robot bottom steering mechanism. BACKGROUND

[0002] Welding robot is a kind of industrial robot specially designed for welding application, usually has longer working range, so as to be able to reach different welding positions of large or complex workpieces. This type of robot is widely used in automobile manufacturing, aerospace, shipbuilding, pressure vessel and other industries requiring efficient and accurate welding.

[0003] The Chinese patent with application number 202122059440.2 discloses a welding robot, which comprises a device main body and an adjusting assembly. A lead mechanism for wire arrangement of the device main body is installed in the middle of the surface of the device main body, and the adjusting assembly for angle adjustment of the device main body is arranged above the device main body. During daily production and use, the following situations may occur:

[0004] Although the welding robot can rotate 360 degrees, it will only rotate towards the specified angle during actual use. The rotating device at the bottom of the welding robot arm works in the same direction for a long time, so the area on this side bears more pressure or stress, accelerating the wear and tear of this area. At the same time, it will also bear more friction, especially for welding robots with a larger arm span, which will cause faster wear and tear, thereby reducing the service life of the welding robot.

[0005] Therefore, it is necessary to propose a welding robot bottom steering mechanism to solve the above problems. INVENTION CONTENTS

[0006] To solve the above problems, the utility model provides a welding robot bottom steering mechanism, which has the effect of improving welding stability, prevents local wear and tear deformation, and improves the service life of the equipment.

[0007] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0008] A welding robot bottom steering mechanism, comprising a bottom plate fixed on a mobile vehicle, a reduction gear box connected to the top of the bottom plate, a drive device connected to one side of the reduction gear box, a rotation end of the drive device connected to a reduction gear set in the reduction gear box, a rotation shaft rotatably connected to the top of the reduction gear box, the rotation shaft connected to the reduction gear set in the reduction gear box, and a rotating disc connected to the top of the rotation shaft.

[0009] A pressure bearing disc is arranged between the rotating disc and the reduction gear box, an annular groove is formed in the top of the pressure bearing disc, a pressure bearing block is connected in the annular groove, an annular plate is connected to the top of the pressure bearing block, an upper pressure bearing is connected between the annular plate and the rotating disc, and a lower pressure bearing is connected between the bottom of the pressure bearing disc and the reduction gear box.

[0010] Preferably, an upper tooth surface disc is connected to the bottom of the rotating disc, a lower tooth surface disc is connected to the top of the reduction gear box, a square groove is formed in the inside of the pressure bearing disc, and a limiting assembly matched with the upper tooth surface disc and the lower tooth surface disc is rotatably connected in the square groove.

[0011] Preferably, the limiting assembly comprises an upper baffle and a lower baffle, and the upper baffle and the lower baffle are rotatably connected in the square groove.

[0012] Preferably, the upper tooth surface disc and the lower tooth surface disc are provided with teeth pointing to the same direction.

[0013] Preferably, a spring is connected between the upper baffle and the lower baffle.

[0014] Preferably, a support frame is connected to the top of the reduction gear box, and the pressure bearing disc is rotatably connected to the support frame through a bearing.

[0015] Preferably, a spring is connected between the upper baffle and the lower baffle.

[0016] Preferably, a support arm assembly is connected to the top of the rotating disc, and a welding device is connected to the support arm assembly.

[0017] Preferably, support legs are connected to the two sides of the moving vehicle, the support legs can be opened to the two sides and pressed on the ground.

[0018] Preferably, the pressure bearing block is made of elastic material.

[0019] Compared with the prior art, the device has the advantages that:

[0020] 1. The pressure bearing disc and the pressure bearing block are arranged at the bottom of the rotating disc, when the rotating disc rotates, the pressure can be transmitted to the pressure bearing block, the supporting capacity of the rotating disc is improved through the reaction of the pressure bearing block, and the over-wear caused by hard connection is avoided.

[0021] 2. The limiting assembly is arranged in the pressure bearing disc, the pressure bearing disc has the function of one-way rotation through the connection of the limiting assembly with the upper tooth surface disc and the lower tooth surface disc, the pressure acting on the fixed area is dispersed on the whole pressure bearing block through the one-way rotation, and the local deformation of the pressure bearing block caused by frequent reciprocating rotation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the schematic view of support arm assembly on mobile vehicle in the utility model;

[0023] Figure 2 It is the schematic view of support arm assembly on mobile vehicle in the utility model;

[0024] Figure 3 It is the schematic view of support arm assembly on mobile vehicle in the utility model;

[0025] Figure 4 It is the schematic view of support arm assembly on mobile vehicle in the utility model;

[0026] Figure 5 It is the schematic view of support arm assembly on mobile vehicle in the utility model;

[0027] Figure 6 It is the schematic view of support arm assembly on mobile vehicle in the utility model.

[0028] Reference signs:

[0029] 101, mobile vehicle; 102, bottom plate; 103, reduction gear box; 104, driving device; 105, rotating shaft; 106, rotating disc; 107, pressure bearing disc; 108, pressure block; 109, annular plate; 110, upper pressure bearing; 111, lower pressure bearing; 112, upper tooth surface disc; 113, lower tooth surface disc; 114, square groove; 115, upper baffle; 116, lower baffle; 117, spring; 118, support frame; 119, elastic plate; 120, support arm assembly; 121, support leg. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to Figures 1-6The utility model provides a welding robot bottom steering mechanism, including the bottom plate 102 fixed on the mobile car 101, through the mobile car 101 drive welding device moves to promote the range of work, the top of bottom plate 102 is connected with the reduction gear box 103, one side of reduction gear box 103 is connected with drive device 104, and the output of drive device 104 is connected with the reduction gear in reduction gear box 103, and the reduction gear is connected with rotating shaft 105, is used for driving rotating shaft 105 to rotate, and the reduction gear in reduction gear box 103 is not shown in the drawing, and the reduction gear is the existing mature device, and here does not carry out too much repetition, the rotating end of drive device 104 is connected with the reduction gear set in reduction gear box 103, the top of reduction gear box 103 is rotatably connected with rotating shaft 105, and rotating shaft 105 is fixedly connected with rotating disc 106 on the top, and support arm assembly 120 is installed on the top of rotating disc 106, and rotating shaft 105 is connected with the reduction gear set in reduction gear box 103, and the top of rotating shaft 105 is connected with rotating disc 106, and rotating shaft 105 can drive rotating disc 106 to rotate by rotating;

[0032] Reference Figures 4 to 6 The top of the pressure bearing disc 107 is provided with an annular groove, the annular groove is connected with the pressure bearing block 108, the pressure bearing block 108 is made of elastic material, preferably rubber material, the top of the pressure bearing block 108 is connected with the annular plate 109, the annular plate 109 and the rotating disc 106 are connected with the upper pressure bearing 110, the bottom of the pressure bearing disc 107 and the reduction gear box 103 are connected with the lower pressure bearing 111, when the welding device works, the pressure is pressed on the pressure bearing disc 107 and the top pressure bearing block 108 through the rotating disc 106, and the compression of the pressure bearing block 108 resists the downward pressure when the support arm assembly 120 extends.

[0033] When used for a long time, the pressure bearing block 108 will appear local deformation, causing the service life to reduce, the following provides a structure for the pressure acting on the whole pressure bearing block 108: reference Figure 5 And Figure 6Specifically, the bottom of the rotating disc 106 is connected with an upper tooth surface disc 112, the top of the reduction gear box 103 is connected with a lower tooth surface disc 113, the upper tooth surface disc 112 and the lower tooth surface disc 113 are provided with teeth towards one side of the pressure bearing disc 107, a square groove 114 is formed in the inside of the pressure bearing disc 107, a limiting assembly matched with the upper tooth surface disc 112 and the lower tooth surface disc 113 is rotatably connected in the square groove 114, the limiting assembly enables the pressure bearing disc 107 to rotate only in one direction, the pressure of the rotating disc 106 acting on the pressure bearing block 108 can be evenly dispersed, preventing the situation that the pressure always acts on a single position when the rotating disc 106 reciprocally rotates.

[0034] Specifically, referring to Figure 6 The limiting assembly comprises an upper baffle 115 and a lower baffle 116, the upper baffle 115 and the lower baffle 116 are rotatably connected in the square groove 114, specifically, when the rotating disc 106 rotates to the right, the upper tooth surface disc 112 will abut against the upper baffle 115, thereby enabling the pressure bearing disc 107 to rotate, the lower baffle 116 at the bottom will pass over the top of the lower tooth surface disc 113, when reversing, the situation is opposite, which enables the position of the rotating disc 106 acting on the pressure bearing disc 107 and the pressure bearing block 108 to change, thereby avoiding the situation of local deformation.

[0035] Specifically, referring to Figure 6 The upper tooth surface disc 112 and the lower tooth surface disc 113 are provided with teeth towards the same direction, the teeth towards the same direction enable the pressure bearing disc 107 to rotate in one direction.

[0036] Specifically, referring to Figure 6 The upper baffle 115 and the lower baffle 116 are connected with a spring 117, the spring 117 pushes the upper baffle 115 and the lower baffle 116 to press on the upper tooth surface disc 112 or the lower tooth surface disc 113.

[0037] The pressure bearing disc 107 is located between the reduction gear box 103 and the rotating disc 106, lacking stable support, the following provides a structure for improving the stability of the pressure bearing disc 107: referring to Figure 5 Specifically, the top of the reduction gear box 103 is connected with a support frame 118, the support frame 118 is fixedly connected to the top of the reduction gear box 103, the pressure bearing disc 107 is rotatably connected to the support frame 118 through a bearing.

[0038] Specifically, referring to Figure 6 The middle of the spring 117 is connected with an elastic plate 119, the elastic plate 119 is used for keeping the spring 117 centered, avoiding the situation that the spring 117 falls off, one end of the elastic plate 119 is connected to the inner wall of the square groove 114.

[0039] Specifically, referring to Figure 1 , the top of the rotating disc 106 is connected with a support arm assembly 120, which can extend outward to drive the welding device at the end to perform welding action, and the support arm assembly 120 is connected with the welding device.

[0040] Specifically, referring to Figure 1 , the two sides of the moving vehicle 101 are connected with support legs 121, Figure 1 The support legs 121 of the moving vehicle 101 are in an unopened state, and the support legs 121 on the two sides can be opened to the two sides and then pressed on the ground, and will not affect the rotation of the support arm assembly 120. The support legs 121 can be opened to the two sides and pressed on the ground.

[0041] Specifically, the pressure block 108 is made of elastic material, and the reaction force when the pressure block 108 is compressed plays a supporting role on the pressure disc 107.

[0042] In this embodiment, the welding device is moved by the moving vehicle 101, the support arm assembly 120 can extend outward to improve the range during welding, and the support legs 121 on the two sides of the moving vehicle 101 can be opened to the two sides and then pressed on the ground to improve the stability during welding.

[0043] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application are within the scope of protection of the present application.

Claims

1. A bottom steering mechanism for a welding robot, characterized in that: Includes a base plate (102) fixed on a mobile vehicle (101), a reduction gearbox (103) connected to the top of the base plate (102), a drive device (104) connected to one side of the reduction gearbox (103), the rotating end of the drive device (104) connected to the reduction gear set inside the reduction gearbox (103), a rotating shaft (105) rotatably connected to the top of the reduction gearbox (103), the rotating shaft (105) connected to the reduction gear set inside the reduction gearbox (103), and a rotating disk (106) connected to the top of the rotating shaft (105). A pressure plate (107) is provided between the rotating disk (106) and the reduction gearbox (103). An annular groove is provided on the top of the pressure plate (107). A pressure block (108) is connected in the annular groove. An annular plate (109) is connected to the top of the pressure block (108). An upper pressure bearing (110) is connected between the annular plate (109) and the rotating disk (106). A lower pressure bearing (111) is connected between the bottom of the pressure plate (107) and the reduction gearbox (103).

2. The bottom steering mechanism of a welding robot according to claim 1, characterized in that: The bottom of the rotating disk (106) is connected to an upper toothed disk (112), the top of the reduction gearbox (103) is connected to a lower toothed disk (113), and a square groove (114) is provided inside the pressure plate (107). A limiting component that cooperates with the upper toothed disk (112) and the lower toothed disk (113) is rotatably connected in the square groove (114).

3. The bottom steering mechanism of a welding robot according to claim 2, characterized in that: The limiting component includes an upper baffle (115) and a lower baffle (116), which are rotatably connected in a square groove (114).

4. The bottom steering mechanism of a welding robot according to claim 2, characterized in that: The upper toothed disc (112) and the lower toothed disc (113) are provided with teeth facing the same direction.

5. The bottom steering mechanism of a welding robot according to claim 3, characterized in that: A spring (117) is connected between the upper baffle (115) and the lower baffle (116).

6. The bottom steering mechanism of a welding robot according to claim 1, characterized in that: The top of the reduction gearbox (103) is connected to a support frame (118), and the pressure plate (107) is rotatably connected to the support frame (118) via a bearing.

7. The bottom steering mechanism of a welding robot according to claim 5, characterized in that: An elastic plate (119) is connected to the middle of the spring (117), and one end of the elastic plate (119) is connected to the inner wall of the square groove (114).

8. The bottom steering mechanism of a welding robot according to claim 1, characterized in that: The top of the rotating disk (106) is connected to a support arm assembly (120), and a welding device is connected to the support arm assembly (120).

9. The bottom steering mechanism of a welding robot according to claim 1, characterized in that: The mobile vehicle (101) is connected to two support legs (121) on both sides. The support legs (121) can open to both sides and press down on the ground.

10. The bottom steering mechanism of a welding robot according to claim 1, characterized in that: The pressure block (108) is made of elastic material.

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