A spraying online hanger automatic righting stabilizing device

Abstract

The utility model relates to hub spraying technical field, concretely is a kind of automatic righting stabilizing device of spraying on-line hanger.It includes deviation rectification pipe assembly and multiple horizontal deviation rectification rods.Deviation rectification pipe assembly includes horizontal pipe and the outer end shell body connected with the end of horizontal pipe, and outer end shell body is funnel structure, and the inner end opening of outer end shell body is greater than its outer end opening;Deviation rectification pipe assembly upper and lower end are all opened with the through hole for hanger to penetrate along its length direction, and deviation rectification pipe assembly is divided into two parts symmetrically arranged by two through holes;Multiple horizontal deviation rectification rods are respectively connected with the upper portion of multiple hangers, and the length direction of horizontal deviation rectification rod is parallel with the moving direction of hanger;Horizontal deviation rectification rod and horizontal pipe inside clearance fit, and horizontal deviation rectification rod and outer end shell body opening inner end clearance fit.This technical scheme can realize the automatic righting of hanger, and it has the advantages of simple structure, low operating cost.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub spraying technology, and in particular to an automatic uprighting and stabilizing device for spraying line hangers. Background Technology

[0002] In automated wheel painting production lines, robots are typically responsible for loading wheel hubs onto hangers and ensuring that the mounting holes of the wheel hubs are precisely aligned with the positioning structure of the hangers to guarantee the stability of subsequent painting or processing.

[0003] Traditional techniques typically employ visual sensors, laser rangefinders, or mechanical limiting devices to detect and adjust the relative position of the wheel hub and hanger to achieve precise alignment. However, these methods suffer from the following problems: 1. High equipment cost: Visual or laser sensors are expensive and require a matching control system, increasing the overall investment cost of the production line. 2. Complex maintenance: Sensors are susceptible to dust and paint splatter in the painting environment, requiring frequent cleaning or calibration, resulting in high maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing an automatic straightening and stabilizing device for spray painting line hangers.

[0005] The technical solution of this utility model is an automatic straightening and stabilizing device for a spray painting line hanger, comprising:

[0006] The alignment tube assembly includes a transverse tube and an outer end housing connected to the end of the transverse tube. The outer end housing has a funnel structure, and the inner opening of the outer end housing is larger than its outer opening. The alignment tube assembly has through holes at both the upper and lower ends along its length for the hanger to pass through. The alignment tube assembly is divided into two symmetrically arranged parts by the two through holes.

[0007] Multiple lateral alignment rods are connected to the upper part of multiple hangers respectively. The length direction of the lateral alignment rods is parallel to the movement direction of the hangers. The lateral alignment rods are clearance-fitted with the inner side of the lateral tube and with the inner end of the outer end housing opening.

[0008] Preferably, a sliding plate is provided below the correction tube assembly, and a second connecting frame is connected between the sliding plate and the correction tube assembly. The sliding plate has a sliding groove, and the sliding plate is the same length as the transverse tube and located directly below the transverse tube.

[0009] Preferably, a first connecting frame connects the correction tube assembly and the guide rail, and the guide rail is installed on the ceiling via multiple suspension columns; a chain is provided below the guide rail, and multiple hanging ring connecting frames are installed at equal intervals on the chain. The upper and lower ends of the hanging ring connecting frames are respectively connected to roller mounting frames and hanging rings, and rollers are rotatably installed at both ends of the roller mounting frames, and the rollers are rolled on the guide rail.

[0010] Preferably, the hanger includes a vertical rod, a hook, and multiple hanging rods. The hook is connected to the upper end of the vertical rod and hangs on a hanging ring. The multiple hanging rods are all vertically connected to the vertical rod, and the hanging rods are perpendicular to the horizontal correction rod, which is connected to the vertical rod.

[0011] Preferably, the width of the through hole is smaller than the width of the inner hole of the transverse tube.

[0012] Preferably, the correction tube assembly is connected to a sensor mounting bracket, and an infrared sensor is mounted on the sensor mounting bracket.

[0013] Compared with the prior art, this utility model has the following beneficial technical effects: When the hanger has a certain angular deviation, the end of the lateral correction rod will first contact the inner wall of the outer end housing during the movement process. During the movement of the hanger, the end of the lateral correction rod will gradually slide on the inclined surface inside the outer end housing and finally insert into the interior of the lateral tube, so that the lateral correction rod can only move along the length direction of the lateral tube, thereby completing the straightening work of the hanger. In summary, this technical solution can realize the automatic straightening of the hanger and has the advantages of simple structure and low operating cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the correction tube assembly in this utility model.

[0016] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point A.

[0017] Reference numerals: 1. Guide rail; 2. Correction tube assembly; 201. Horizontal tube; 202. Outer end housing; 2001. Through hole; 3. Horizontal correction rod; 4. Hanging ring connecting frame; 5. Roller mounting frame; 6. Roller; 7. Chain; 8. Suspension column; 9. First connecting frame; 10. Hanging ring; 11. Hook; 12. Infrared sensor; 13. Sensor mounting frame; 14. Slide plate; 15. Second connecting frame; 16. Vertical rod; 17. Hanging rod. Detailed Implementation

[0018] Example 1

[0019] like Figures 1-3 As shown in the figure, the automatic straightening and stabilizing device for spraying line hangers proposed in this embodiment includes a correction tube assembly 2 and multiple transverse correction rods 3.

[0020] The alignment tube assembly 2 includes a horizontal tube 201 and an outer end housing 202 connected to the end of the horizontal tube 201. The outer end housing 202 has a funnel structure, and the inner opening of the outer end housing 202 is larger than its outer opening. A first connecting frame 9 connects the alignment tube assembly 2 and the guide rail 1. The guide rail 1 is installed on the ceiling through multiple suspension columns 8. The upper and lower ends of the alignment tube assembly 2 are provided with through holes 2001 for the hanging device to pass through along its length. The alignment tube assembly 2 is divided into two symmetrically arranged parts through the two through holes 2001. The width of the through hole 2001 is smaller than the width of the inner hole of the horizontal tube 201. If the width of the through hole 2001 is larger than the width of the inner hole of the horizontal tube 201, it is easy for the horizontal alignment rod 3 to pass through the inner side of the through hole 2001, thereby affecting the alignment work.

[0021] Multiple lateral correction rods 3 are connected to the upper part of multiple hangers respectively. The length direction of the lateral correction rods 3 is parallel to the movement direction of the hangers. The lateral correction rods 3 are in clearance fit with the inner side of the lateral tube 201, and the lateral correction rods 3 are in clearance fit with the inner end of the opening of the outer end housing 202.

[0022] A chain 7 is provided below the guide rail 1. Multiple hanging ring connecting frames 4 are installed on the chain 7 at equal intervals. The upper and lower ends of the hanging ring connecting frames 4 are respectively connected to roller mounting frames 5 and hanging rings 10. Rollers 6 are rotatably installed at both ends of the roller mounting frames 5, and the rollers 6 are rolled on the guide rail 1.

[0023] The hanging device includes a vertical rod 16, a hook 11, and multiple hanging rods 17. The hook 11 is connected to the upper end of the vertical rod 16 and is hung on the hanging ring 10. The multiple hanging rods 17 are all vertically connected to the vertical rod 16, and the hanging rods 17 are perpendicular to the horizontal correction rod 3. The horizontal correction rod 3 is connected to the vertical rod 16.

[0024] A sensor mounting bracket 13 is connected to the correction tube assembly 2, and an infrared sensor 12 is mounted on the sensor mounting bracket 13.

[0025] In this embodiment, in the wheel hub painting production line, the following method is used to achieve the movement of the hanger by relying on the chain to drive the chain:

[0026] Motor-reducer-sprocket drive structure; this drive method mainly consists of a motor, a reducer, and a sprocket. The motor serves as the power source, providing initial rotational power. The reducer reduces the motor's output speed while increasing torque to meet the force required for chain drive. The sprocket is mounted on the reducer's output shaft, and the chain meshes with the sprocket. When the motor runs, power is transmitted to the sprocket through the reducer. The rotation of the sprocket drives the meshing chain to move, thereby realizing the transport of the hanger. The above is existing technology and will not be elaborated further.

[0027] In modern wheel hub production lines, fixture alignment has become a necessary pre-process for automated robotic mounting. Using active alignment improves overall equipment efficiency, reduces the risk of assembly damage, and ensures perfect alignment between the wheel hub bore and the fixture.

[0028] In this technical solution, when the hanger approaches the robot's loading station, the end of the transverse correction rod 3 on the hanger first moves to the inner side of the outer housing 202. If there is an angular deviation in the hanger, i.e., the transverse correction rod 3 is not aligned with the inner hole of the transverse tube 201, the upper part of the vertical rod 16 of each hanger is fixed with the transverse correction rod 3, and its direction is parallel to the direction of hanger movement. When the hanger enters the correction area, the correction rod 3 first contacts the funnel opening of the outer housing 202. The tapering structure guides the slightly offset correction rod into the inner hole of the transverse tube 201. The correction rod 3 slides in the transverse tube 201 with a clearance fit, limiting... The left and right swing of the hanger is controlled to suppress its rotation tendency; the gap between the correction rod 3 and the transverse tube 201 needs to be balanced. If it is too small, it will increase the frictional resistance, and if it is too large, it will reduce the correction accuracy. It is usually designed according to the H8 / f7 tolerance fit, and lubricating oil can be dripped into the transverse tube 201 at regular intervals to reduce friction; when the hanger just blocks the detection end of the infrared sensor 12, the infrared sensor 12 feeds back the signal to the PLC controller, and the PLC controller then controls the motor to stop running, thus completing the positioning work of the hanger, so that the hole on the hub matches the height of the hanging rod 17, improving the accuracy of material loading.

[0029] Example 2

[0030] like Figure 1 As shown in the figure, the automatic straightening and stabilizing device for spray painting line hangers proposed in this embodiment, compared with the first embodiment, has a sliding plate 14 below the correction tube assembly 2. A second connecting frame 15 is connected between the sliding plate 14 and the correction tube assembly 2. The sliding plate 14 has a sliding groove, and the sliding plate 14 is the same length as the horizontal tube 201 and located directly below the horizontal tube 201. When the wheel hub is hung on the hanger, the hanger is prone to tilting to one side due to the unbalanced force on both sides. However, since the horizontal tube 201 limits the upper end of the hanger, the lower part of the hanger is prone to bending. In this technical solution, the sliding groove limits the bottom end of the vertical rod 16, making it less likely for the vertical rod 16 to bend.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automatic straightening and stabilizing device for spray painting line fixtures, characterized in that, include: The alignment tube assembly (2) includes a transverse tube (201) and an outer end housing (202) connected to the end of the transverse tube (201). The outer end housing (202) has a funnel structure, and the inner opening of the outer end housing (202) is larger than its outer opening. The alignment tube assembly (2) has through holes (2001) at both the upper and lower ends along its length for the hanger to pass through. The alignment tube assembly (2) is divided into two symmetrically arranged parts through the two through holes (2001). Multiple transverse correction rods (3) are connected to the upper part of multiple hangers respectively. The length direction of the transverse correction rods (3) is parallel to the moving direction of the hangers. The transverse correction rods (3) are in clearance fit with the inner side of the transverse tube (201) and are in clearance fit with the inner end of the opening of the outer end housing (202).

2. The automatic straightening and stabilizing device for a spray painting line hanger according to claim 1, characterized in that, A sliding plate (14) is provided below the correction tube assembly (2). A second connecting frame (15) is connected between the sliding plate (14) and the correction tube assembly (2). A sliding groove is provided on the sliding plate (14). The sliding plate (14) is the same length as the transverse tube (201) and is located directly below the transverse tube (201).

3. The automatic straightening and stabilizing device for a spray painting line hanger according to claim 1, characterized in that, A first connecting frame (9) is connected between the correction tube assembly (2) and the guide rail (1). The guide rail (1) is installed on the ceiling through multiple suspension columns (8). A chain (7) is provided below the guide rail (1). Multiple hanging ring connecting frames (4) are installed at equal intervals on the chain (7). The upper and lower ends of the hanging ring connecting frame (4) are respectively connected to a roller mounting frame (5) and a hanging ring (10). Both ends of the roller mounting frame (5) are rotatably mounted with rollers (6). The rollers (6) are rolled on the guide rail (1).

4. The automatic straightening and stabilizing device for a spray painting line hanger according to claim 3, characterized in that, The hanging device includes a vertical rod (16), a hook (11) and multiple hanging rods (17). The hook (11) is connected to the upper end of the vertical rod (16) and is hung on the hanging ring (10). The multiple hanging rods (17) are all vertically connected to the vertical rod (16) and the hanging rods (17) are perpendicular to the horizontal correction rod (3). The horizontal correction rod (3) is connected to the vertical rod (16).

5. The automatic straightening and stabilizing device for a spray painting line hanger according to claim 4, characterized in that, The width of the through hole (2001) is smaller than the width of the inner hole of the transverse tube (201).

6. The automatic straightening and stabilizing device for a spray painting line hanger according to claim 1, characterized in that, A sensor mounting bracket (13) is connected to the correction tube assembly (2), and an infrared sensor (12) is mounted on the sensor mounting bracket (13).

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