Compatible with oiling mechanisms and oiling methods of different inner diameters

Abstract

The invention discloses an oiling mechanism and oiling method compatible with different inner diameters, comprising an oiling nozzle, an oiling spindle, an oiling nozzle mounting seat and an elastic abutment wheel assembly; the oiling nozzle mounting seat is sleeved on the lower end of the oiling spindle and can rotate around the oiling spindle, and the circumferential side of the oiling nozzle mounting seat is provided with an oiling nozzle mounting hole; the oiling nozzle is arranged in the oiling nozzle mounting hole and is extended outwardly along the radial direction of the oiling spindle; the elastic abutment wheel assembly is provided with two groups, which are respectively located on both sides of the oiling nozzle; the elastic abutment wheel assembly comprises an abutment wheel, an abutment wheel frame and an elastic element; the wheel circumference of the abutment wheel is arranged around the upper and lower axes, the inner end of the abutment wheel frame is hinged to the oiling nozzle mounting seat through a first vertical axis, the abutment wheel is hinged to the outer end of the abutment wheel frame through a second vertical axis, the elastic element acts on the abutment wheel frame so that the abutment wheel has an external resistance force toward the inner wall surface to be oiled; and the oiling spindle is connected to a manipulator, which can move the oiling spindle along a set circle with the manipulator.

Description

Technical Field

[0001] The present invention relates to the field of oil coating devices, and in particular to an oil coating mechanism and an oil coating method compatible with different inner diameters, which are mainly but not limitedly applicable to the oil coating process during motor production. Background Art

[0002] The motor is mainly composed of a rotor and a stator. It is an important device for converting electrical energy into mechanical energy. It is the power source of many automated devices and is widely used in various industries, such as household appliances, industrial and agricultural production, transportation, etc. In the process of motor production, many places need to be oiled, such as the inner wall of the assembly cavity (or concave hole) inside the motor housing and cover, in order to reduce the wear of the product mating surface and prevent its surface corrosion.

[0003] In the prior art, in the early days, a brush was dipped in lubricating oil and manually applied to the inner hole of the product. The amount of oil applied was difficult to control, and it was more or less, extremely uneven, and the lubricating oil was wasted a lot, which would also affect the stability of product quality. Later, automatic oiling was generally adopted, in which the automatic oiling was performed by an oiling robot provided on the oiling equipment with an oil gun. The oiling robot generally includes a mounting frame, on which a first robot arm with a rotation axis extending in the up and down direction is provided, and a second robot arm with a rotation axis perpendicular to the rotation axis of the first robot arm is hinged on the first robot arm, and a third robot arm is hinged on the second robot arm, and an oiling gun is installed on the third robot arm, so that the oiling robot can meet the multi-directional automatic oiling. This method of using an oiling robot is generally not suitable for strictly required inner circle oiling. Limited by the hinged structure, it is difficult to achieve a regular circle oiling effect. If it is necessary to oil the inner circle, the oiling gun can only be changed to a horizontally rotatable structure, that is, the oiling gun is connected to the robot through a horizontal rotating part. However, for holes with different inner diameters, it is necessary to replace oiling guns of different sizes, or change the size of the horizontal rotating part. This results in the need to use multiple oiling devices for holes with different inner diameters during the motor production process. On the one hand, the cost of the device is increased. On the other hand, multiple switching of different oiling devices will inevitably have a negative impact on production efficiency.

[0004] There is also a device for oiling the inner hole. In the non-working state, the oiling motor, oiling shaft synchronous wheel, oiling mechanism synchronous belt, oiling feed proximity switch, oiling motor synchronous wheel, oiling mechanism lifting linear guide column, oiling rotating spindle, and bearing fixing sleeve connected to the oiling mechanism fixed plate are controlled by the oiling reset proximity switch to control the oiling mechanism lifting cylinder to be at the lowest point. When the product is placed in the product positioning block, it will trigger the photoelectric material detector to issue an instruction, so that the oiling mechanism lifting cylinder works upward and drives the oiling mechanism to move upward. The stroke adjustment rod will touch the oiling feed proximity switch, and the oiling feed proximity switch will issue an instruction to make the oiling motor and the workpiece rotating motor rotate; at the same time, the high-pressure oil injection pump will inject the lubricating oil into the oiling rotating spindle through the control of the flow regulating valve. Under the action of centrifugal force, the lubricating oil will be thrown very evenly on the inner hole surface of the product. After the application is completed, the oiling mechanism lifting cylinder returns to its original position and touches the oiling reset proximity switch to cut off all power signals, and the entire oiling work is completed. Theoretically, this inner hole oiling method can be applied to inner hole surfaces with different inner diameters because it throws the lubricating oil onto the inner hole surface of the product through the action of centrifugal force. However, inner hole surfaces with different inner diameters also mean that they are at different distances from the oiling rotating spindle, resulting in different forces and spreading areas when the lubricating oil is thrown onto the inner hole surface of the product. Therefore, a device that can meet the requirements of oiling inner hole surfaces with one inner diameter is still difficult to meet the requirements of oiling inner hole surfaces with another different inner diameter with higher oiling requirements (such as control of the oiling area, control of the oiling amount, etc.). Moreover, the overall structure of this oiling device is relatively complex, and the product needs to be positioned at the upper position. If it is used to oil the inner wall of the assembly cavity (or concave hole) inside the motor housing and cover, the motor housing and cover can only be inverted (i.e., the opening faces downward), which makes it difficult to position the motor housing and cover. After oiling, the oil will flow downward, resulting in less than ideal controllability of the oiling area.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the invention

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide an oiling mechanism and an oiling method that are compatible with different inner diameters, which can satisfy the requirement that the oiling nozzle sprays oil radially toward the inner hole surface, has a good coating effect, and the oiling area can form a precise circle. Therefore, the depth of the oiling area, the oiling area, etc. can be precisely controlled.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An oiling mechanism compatible with different inner diameters comprises an oiling nozzle, an oiling spindle, an oiling nozzle mounting seat and an elastic abutment wheel assembly;

[0009] The oiling nozzle mounting seat is sleeved on the lower end of the oiling spindle and can rotate around the oiling spindle. The circumferential side of the oiling nozzle mounting seat is provided with an oiling nozzle mounting hole. The oiling nozzle is arranged in the oiling nozzle mounting hole and extends outwardly along the radial direction of the oiling spindle.

[0010] The elastic abutment wheel assembly is provided with two groups, which are respectively located on both sides of the oiling nozzle; the elastic abutment wheel assembly includes an abutment wheel, an abutment wheel frame and an elastic element; the wheel circumference of the abutment wheel is arranged around the upper and lower axes, the inner end of the abutment wheel frame is hinged to the oiling nozzle mounting seat through a first vertical axis, and the abutment wheel is hinged to the outer end of the abutment wheel frame through a second vertical axis, one end of the elastic element acts on the oiling nozzle mounting seat, and the other end of the elastic element acts on the abutment wheel frame so that the abutment wheel has an external resistance force toward the inner wall surface to be oiled;

[0011] Furthermore, the oiling spindle is connected to a robot, and the robot can move the oiling spindle along a set circle.

[0012] As a preferred solution, the height of the wheel circumference of the abutment wheel is lower than the height of the oiling nozzle, so that the abutment will not affect the oiling area, especially the abutment wheel located at the rear side of the oiling nozzle in the oiling direction.

[0013] As a preferred solution, the other end of the elastic element acts on the abutment wheel frame at a position between the first vertical axis and the second vertical axis, so as to drive the abutment wheel frame to rotate relative to the first vertical axis toward the side where the oiling nozzle is located, and maintain the elastic abutment force.

[0014] As a preferred solution, a groove is provided on the abutting wheel frame at a position corresponding to the first vertical axis and the second vertical axis, and the other end of the elastic element abuts in the groove. The structure is simple, easy to produce, and the installation and positioning of the elastic element is simple and convenient.

[0015] As a preferred solution, a first oil groove is provided inside the lower end of the oiling spindle, an oil outlet hole is arranged on the circumference of the lower end of the oiling spindle as the output end of the first oil groove, and the sleeve hole of the oiling nozzle mounting seat and the circumference of the lower end of the oiling spindle are formed to form a second oil groove, which is an annular groove around the circumference of the lower end of the oiling spindle, and the oil outlet hole passes through the inner side of the annular groove, and the inner end of the oiling nozzle passes through the outer side of the annular groove, so that the oiling nozzle keeps the oil supply connected when it rotates with the oiling nozzle mounting seat relative to the oiling spindle. The structure is ingenious and compact, and the annular groove is formed by the oiling nozzle mounting seat and the oiling spindle to ensure that the oil supply demand of the oiling nozzle can be met when it is rotated to any position for oiling.

[0016] As a preferred solution, a positioning cylinder is provided on the oiling spindle, and a positioning groove is provided on the end of the oiling nozzle mounting seat away from the oiling nozzle. In the initial state, the positioning cylinder is directly opposite to the top of the positioning groove. When the oiling nozzle rotates 360 degrees relative to the oiling spindle to complete one circle of oiling the inner ring surface, the positioning groove is again directly opposite to the bottom of the positioning cylinder, and the positioning cylinder extends downward into the positioning groove to lock the current position of the oiling nozzle, thereby ensuring that the position and angle of the next oiling are the same.

[0017] As a preferred solution, when applying oil, the manipulator first extends the oiling spindle into the center of the hole to be oiled, then radially deviates to the set circumference, then moves along the set circumference to complete a circle of oiling along the inner wall of the hole to be oiled, then radially deviates to the center of the hole to be oiled, and finally exits the hole to be oiled. Taking the center of the circle as the base point, the oiling spindle can be deviated by a corresponding distance to different set circumferences according to the oiling requirements of the inner hole surface with different inner diameters. The algorithm of the control system is relatively simple, which is conducive to reducing the failure rate of the control system and the cost of the control system is also low.

[0018] As a preferred embodiment, the manipulator includes a manipulator body, which includes a base, a rotating base, a first articulated arm and a second articulated arm connected in sequence; the rotating base can be automatically horizontally rotated relative to the base; one end of the first articulated arm is hinged to the upper end of the rotating base so as to be automatically rotatable relative to the upper end of the rotating base; one end of the second articulated arm is hinged to the other end of the first articulated arm so as to be automatically rotatable relative to the other end of the first articulated arm; the other end of the second articulated arm is provided with an extraction head for detachably connecting to the oiling spindle, and the upper end of the extraction head can be automatically rotatably connected to the other end of the second articulated arm.

[0019] As a preferred solution, the oiling spindle is connected to an extraction adapter located at a side thereof, and the extraction head can be selectively adsorbed, connected or detached from the extraction adapter.

[0020] An oiling method, based on any of the above-mentioned oiling mechanisms compatible with different inner diameters, comprises the following steps:

[0021] First, the product with the hole to be oiled is placed and positioned; then the robot carries the oiling spindle into the hole to be oiled and moves along a set circle to complete oiling along the inner circumference of the hole to be oiled, and the set circle is located between the center of the hole to be oiled and the inner circumference of the hole to be oiled; finally, the robot carries the oiling spindle out of the hole to be oiled.

[0022] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly adopts the arrangement of the oiling spindle, the oiling nozzle mounting seat and the elastic abutment wheel assembly, and utilizes the manipulator to move the oiling spindle along the set circumference to meet the oiling requirements of the hole surfaces with different inner diameters. For the hole surface with a larger inner diameter, the manipulator can move along a larger set circumference. On the contrary, for the hole surface with a smaller inner diameter, the manipulator can move along a smaller set circumference. In this way, the oiling requirements can be met. The distance between the nozzle and the hole surface to be oiled can be flexibly adjusted, and the oiling is well controllable. Moreover, the oiling nozzle mounting seat is sleeved on the lower end of the oiling spindle and can rotate around the oiling spindle. When the oiling spindle moves along a set circle, with the cooperation of the elastic abutment wheel assembly, the oiling nozzle rotates relative to the oiling spindle together with the oiling nozzle mounting seat, so that the oiling nozzle can spray oil radially toward the inner hole surface, and the coating effect is good. The oiling area can form a precise circle. Therefore, the depth of the oiling area, the oiling area, etc. can be precisely controlled.

[0023] In addition, the oiling mechanism has a simple structure, and a conventional robot can be used as the manipulator. The oiled product can be placed and positioned normally, and is also suitable for automatic transfer and transportation of conventional automatic production lines.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional diagram of an oiling mechanism according to an embodiment of the present invention;

[0026] Figure 2 is a partial three-dimensional diagram of an oiling mechanism according to an embodiment of the present invention;

[0027] Figure 3 yes Figure 2 An exploded view of the structure shown;

[0028] Figure 4 is a cross-sectional view of an oiling mechanism according to an embodiment of the present invention;

[0029] Figure 5 is a three-dimensional diagram of a manipulator used in an oiling mechanism according to an embodiment of the present invention;

[0030] Figure 6 is a partial cross-sectional view of a manipulator used in an oiling mechanism according to an embodiment of the present invention;

[0031] Figure 7 is a partial exploded view of a manipulator used in an oiling mechanism according to an embodiment of the present invention;

[0032] Figure 8 This is a diagram showing a first oiling working state of an embodiment of the present invention;

[0033] Fig. 9 This is a diagram showing the second oiling working state of the embodiment of the present invention;

[0034] Fig.10 This is a diagram showing the third oiling working state of the embodiment of the present invention;

[0035] Fig.11 This is a diagram showing a fourth oiling working state of an embodiment of the present invention;

[0036] Fig.12 It is a diagram showing the fifth working state of oiling according to an embodiment of the present invention.

[0037] Fig.13 It is a diagram illustrating the sixth working state of oiling according to an embodiment of the present invention.

[0038] Description of the accompanying drawings:

[0039] Grease nozzle 101, grease nozzle mounting seat 102, elastic abutment wheel assembly 103, manipulator 104, abutment wheel 105, abutment wheel frame 106, elastic element 107, first vertical axis 108, second vertical axis 109, spring mounting groove 110, groove 111, hole to be greased 112, set circumference 113, grease area 114, positioning groove 115, end plate 116, grease nozzle mounting hole 117, avoidance hole 118 , mounting cavity 119, sleeve hole 1021, base 1, rotating seat 2, first articulated arm 3, second articulated arm, extraction head 5, adapter seat 51, connecting arm 511, CCD detection head 52, upper articulated seat 53, lower suction seat 54, connecting piece 55, annular lamp holder 56, placement rack 6, oiling spindle 7, placement and positioning seat 71, extraction adapter 72, oil outlet hole 701, second oil groove 702, needle cylinder 703. DETAILED DESCRIPTION

[0040] Please refer to Figures 1 to 13 As shown, it shows the specific structure of an embodiment of the present invention.

[0041] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] An oiling mechanism compatible with different inner diameters includes an oiling nozzle 101, an oiling spindle 7, an oiling nozzle mounting seat 102, and an elastic abutment wheel assembly 103. The oiling spindle 7 is connected to a manipulator 104, and the manipulator 104 can move the oiling spindle 7 along a set circumference.

[0043] The oiling spindle 7 has an extraction adapter 72, a placement rack 6 is provided for the oiling spindle 7, the oiling spindle 7 has a placement seat 71, and the extraction adapter 72 is provided on the top of the placement seat 71. An oil storage tank can be provided inside the oiling spindle 7 for oil supply, or oil can be supplied through an external oil pipe.

[0044] The oiling nozzle mounting seat 102 is sleeved on the lower end of the oiling spindle 7 and can rotate around the oiling spindle 7. The circumferential side of the oiling nozzle mounting seat 102 is provided with an oiling nozzle mounting hole 117; the oiling nozzle 101 is arranged in the oiling nozzle mounting hole 117 and extends outward along the radial direction of the oiling spindle 7; the lower end of the oiling spindle 7 is internally provided with a first oil groove, and the external oil pipe is connected to the input end of the first oil groove. The circumferential side of the lower end of the oiling spindle 7 is provided with a plurality of oil outlets arranged along the circumferential spacing. The hole 701 serves as the output end of the first oil groove, and the sleeve hole 1021 of the oiling nozzle mounting seat 102 and the lower end circumference of the oiling spindle 7 form a second oil groove 702, which is an annular groove around the lower end circumference of the oiling spindle 7. The plurality of oil outlet holes penetrate the inner side of the annular groove, and the inner end of the oiling nozzle 101 penetrates the outer side of the annular groove, so that the oiling nozzle 101 keeps the oil supply connected when rotating with the oiling nozzle mounting seat 102 relative to the oiling spindle 7. The structure is ingenious and compact, and the annular groove is formed by the oiling nozzle mounting seat 102 and the oiling spindle 7 to ensure that the oil supply demand of the oiling nozzle 101 can be met when rotating to any position for oiling.

[0045] The elastic abutment wheel assembly 103 is provided with two groups, which are symmetrically located on both sides of the oiling nozzle 101; the elastic abutment wheel assembly 103 includes an abutment wheel 105, an abutment wheel frame 106 and an elastic element 107; the wheel circumference of the abutment wheel 105 is arranged around the upper and lower axes, and the height of the wheel circumference of the abutment wheel 105 is lower than the height of the oiling nozzle 101, so that the abutment will not affect the oiling area, especially the abutment wheel 105 located on the rear side of the oiling nozzle 101 in the oiling direction. The inner end of the abutment wheel frame 106 is hinged to the oiling nozzle mounting seat 102 through the first vertical axis 108, and the abutment wheel 105 is hinged to the outer end of the abutment wheel frame 106 through the second vertical axis 109. One end of the elastic element 107 acts on the oiling nozzle mounting seat 102, and the other end of the elastic element 107 acts on the abutment wheel frame 106 so that the abutment wheel 105 has an external resistance force toward the inner wall surface to be oiled. Here, the other end of the elastic element 107 acts on the abutment wheel frame 106 corresponding to the position between the first vertical axis 108 and the second vertical axis 109 to drive the abutment wheel frame 106 to rotate relative to the first vertical axis 108 toward the side where the oiling nozzle 101 is located, thereby maintaining the elastic abutment force. In this embodiment, the elastic element 107 is a pressure spring, one end of which extends into the spring mounting groove 110 of the oil nozzle mounting seat 102, and a groove 111 is provided on the abutting wheel frame 106 corresponding to the position between the first vertical axis 108 and the second vertical axis 109, and the other end of the elastic element 107 abuts in the groove 111; it has a simple structure and is easy to produce and manufacture, and the installation and positioning of the elastic element 107 is simple and convenient. Furthermore, in this embodiment, the outer end screw of the oiling nozzle mounting seat 102 is assembled with an end plate 116, and an avoidance hole 118 is provided on the end plate 116, which is arranged opposite to the oiling nozzle mounting hole 117, so that the outer end of the oiling nozzle 101 can extend out. The periphery of the end plate 116 is locked into the outer end screw hole of the oiling nozzle mounting seat 102 by a plurality of screws, and the outer end of the mounting cavity 119 of the oiling nozzle mounting seat 102 is blocked by the end plate 116 to limit the angle range of the abutment wheel frame 106 to the side where the oiling nozzle 101 is located. At the same time, the structure of the oiling nozzle mounting seat 102 is simpler and easier to produce by making and assembling the end plate 116 separately.

[0046] When applying oil, the manipulator 104 first extends the oiling spindle 7 into the circle center of the hole 112 to be oiled, then radially deflects outward to the set circumference 113, then moves along the set circumference 113 for one circle to complete oiling along the inner wall of the hole 112 to be oiled, then radially deflects inward to the circle center of the hole 112 to be oiled, and finally exits the hole 112 to be oiled. Taking the center of the circle as the base point, the oiling spindle 7 can be deflected by a corresponding distance to different set circumferences according to the oiling requirements of the inner hole surface with different inner diameters. The algorithm of the control system is relatively simple, which is conducive to reducing the failure rate of the control system, and the cost of the control system is also low. The oiling spindle 7 is provided with a positioning cylinder, and here, a needle cylinder 703 is used as the positioning cylinder. The end of the oiling nozzle mounting seat 102 away from the oiling nozzle 101 is provided with a positioning groove 115. In the initial state, the needle cylinder 703 is directly opposite to the upper part of the positioning groove 115. When the oiling nozzle 101 rotates 360 degrees relative to the oiling spindle 7 to complete one circle of oiling of the inner annular surface, the positioning groove 115 is directly opposite to the lower part of the needle cylinder 703 again, and the needle cylinder 703 extends downward into the positioning groove 115 to lock the current position of the oiling nozzle 101, ensuring that the position and angle of the next oiling are the same. In the next oiling operation, in the initial state before the oiling starts, the needle cylinder 703 first retracts upward away from the positioning groove 115 to release the lock on the oiling nozzle 101.

[0047] like Figures 5 to 7 As shown, the manipulator 104 includes a manipulator body, and the manipulator body includes a base 1, a rotating base 2, a first articulated arm 3 and a second articulated arm 4 connected in sequence; the rotating base 2 can be automatically horizontally rotated relative to the base 1; one end of the first articulated arm 3 is hinged to the upper end of the rotating base 2, so that it can be automatically rotated relative to the upper end of the rotating base 2; one end of the second articulated arm 4 is hinged to the other end of the first articulated arm 3, so that it can be automatically rotated relative to the other end of the first articulated arm 3; the other end of the second articulated arm 4 on the manipulator body is provided with an extraction head 5 for detachably connecting to the oiling spindle 7, the upper end of the extraction head 5 can be automatically rotatably connected to the other end of the second articulated arm 4, and the extraction head 5 has an adapter seat 51, and the adapter seat 51 is connected to a CCD detection head 52. The connection relationship among the base 1, the rotating base 2, the first articulated arm 3, the second articulated arm 4, and the extraction head 5 and the technology of the corresponding automatic control action can be realized by relying on the current mature robot technology, and will not be elaborated here.

[0048] The lower end surface of the extraction head 5 has a positioning area and an adsorption area, and the extraction operation is simple and controllable. The adsorption area of ​​the extraction head is a vacuum adsorption area or a magnetic adsorption area. The positioning area of ​​the extraction head has a positioning hole. In this embodiment, the extraction head 5 includes an upper articulated seat 53 and a lower suction seat 54. The upper end of the upper articulated seat 53 can be automatically rotatably connected to the other end of the second articulated arm 4, and the lower end of the upper articulated seat 53 is installed on the upper end of the adapter seat 51. The adapter seat 51 has a connecting arm 511 extending toward the side, and the CCD detection head 52 is installed on the connecting arm 511; the upper end of the lower suction seat 54 is installed on the lower end of the adapter seat 51, and the positioning holes and the adsorption holes are arranged on the lower suction seat 54. The structural design is ingenious and reasonable. The adapter seat 51 is equivalent to acting as a part of the extraction head 5. Only the extension arm needs to be used for the installation of the CCD detection head 52, which saves the design materials of the extraction head 5, and also takes into account the consideration that the adapter seat 51 needs to flexibly design the required structure.

[0049] The CCD detection head 52 is connected to a connector 55, and an illuminating lamp and a blue UV lamp are arranged below the CCD detection head 52 through the connector 55. The illuminating lamp and the blue UV lamp are integrated, and the illuminating lamp facilitates the CCD detection of glue coating. When oiling, white grease is applied, and the white grease is difficult to distinguish from the metal color of the motor shell, and cannot be detected by ordinary white light. Therefore, it is necessary to use the blue UV light emitted by the blue UV lamp to cooperate with the CCD to detect whether the oil coating is defective such as oil shortage or oil shortage. The lower end of the connector 55 is connected to an annular lamp holder 56, and the illuminating lamp and the blue UV lamp are respectively arranged on the annular lamp holder 56 and can emit light toward the bottom of the annular lamp holder 56. In this way, the detection area of ​​the CCD detection head 52 is correspondingly located above the inner ring area of ​​the annular lamp holder 56. Its structural design is ingenious and reasonable, and the structural layout is compact. The detection area of ​​the CCD detection head 52 can be detected through the inner ring area of ​​the annular lamp holder 56. Preferably, the lighting lamp and the blue UV lamp are respectively arranged along the annular bottom spacing of the annular lamp holder 56. In this way, the lighting lamp and the blue UV lamp can be arranged along the annular lamp holder 56 to meet the illumination area requirements, and are particularly suitable for detecting the annular oiled area formed by oiling the inner hole circumferential side walls of the cover and the outer shell.

[0050] Next, please refer to Figures 8 to 12As shown, several working states in the oiling process are selected. When the oiling operation is performed, first, the product with the hole to be oiled (such as the motor housing or / and the cover) is placed and positioned, and the opening of the inner hole is set upward; then the manipulator leads the oiling spindle 7 into the hole to be oiled and moves along the set circumference 113 to complete a circle of oiling along the inner circumference of the hole to be oiled 112, and the set circumference 113 is located between the center of the hole to be oiled 112 and the inner circumference of the hole to be oiled 112; finally, the manipulator leads the oiling spindle 7 out of the hole to be oiled. When the oiling spindle 7 moves along the set circumference 113, with the cooperation of the elastic abutment wheel assembly 103, the oiling nozzle 101 rotates relative to the oiling spindle 7 along with the oiling nozzle mounting seat 102, so that the oiling nozzle 101 sprays oil radially toward the inner hole surface, the coating effect is good, and the oiling area 114 can form a precise circumference.

[0051] The key point of the design of the present invention is that, mainly through the arrangement of the oiling spindle 7, the oiling nozzle mounting seat 102 and the elastic abutment wheel assembly 103, the oiling spindle 7 can be moved along a set circumference by a manipulator to meet the oiling requirements of holes with different inner diameters. For holes with larger inner diameters, the manipulator can move along a larger set circumference. On the contrary, for holes with smaller inner diameters, the manipulator can move along a smaller set circumference. In this way, the distance between the oiling nozzle 101 and the hole surface to be oiled can be flexibly adjusted, and the oiling requirements of the present invention are met. The controllability is good, and the oiling nozzle mounting seat 102 is sleeved on the lower end of the oiling spindle 7 and can rotate around the oiling spindle 7. When the oiling spindle 7 moves along the set circumference, the oiling nozzle 101 rotates relative to the oiling spindle 7 along with the oiling nozzle mounting seat 102 under the cooperation of the elastic abutment wheel assembly 103, so that the oiling nozzle 101 sprays oil radially toward the inner hole surface, and the coating effect is good. The oiling area can form a precise circumference, so the depth of the oiling area, the oiling area, etc. can be accurately controlled. In addition, the structure of this oiling mechanism is simple, and the manipulator can use a conventional manipulator, and the oiled product can be placed and positioned normally, and it is also suitable for automatic transfer and transportation of conventional automatic production lines.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An oiling mechanism compatible with different inner diameters, including an oiling nozzle, characterized in that: It also includes an oiling spindle, an oiling nozzle mounting seat and an elastic abutment wheel assembly; The oiling nozzle mounting seat is sleeved on the lower end of the oiling spindle and can rotate around the oiling spindle. The circumferential side of the oiling nozzle mounting seat is provided with an oiling nozzle mounting hole. The oiling nozzle is arranged in the oiling nozzle mounting hole and extends outwardly along the radial direction of the oiling spindle. The elastic abutment wheel assembly is provided with two groups, which are respectively located on both sides of the oiling nozzle; the elastic abutment wheel assembly includes an abutment wheel, an abutment wheel frame and an elastic element; the wheel circumference of the abutment wheel is arranged around a vertical axis, the inner end of the abutment wheel frame is hinged to the oiling nozzle mounting seat through a first vertical axis, and the abutment wheel is hinged to the outer end of the abutment wheel frame through a second vertical axis, one end of the elastic element acts on the oiling nozzle mounting seat, and the other end of the elastic element acts on the abutment wheel frame so that the abutment wheel has an external resistance force toward the inner wall surface to be oiled; Furthermore, the oiling spindle is connected to a robot, and the robot can move the oiling spindle along a set circle.

2. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: The height of the wheel circumference of the abutting wheel is lower than the height of the oiling nozzle.

3. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: The other end of the elastic element acts on a position on the abutment wheel frame corresponding to between the first vertical axis and the second vertical axis.

4. The oiling mechanism compatible with different inner diameters according to claim 3, characterized in that: A groove is arranged on the abutting wheel frame at a position corresponding to the first vertical axis and the second vertical axis, and the other end of the elastic element abuts in the groove.

5. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: A first oil groove is provided inside the lower end of the oiling spindle, and an oil outlet hole is arranged on the circumference of the lower end of the oiling spindle as the output end of the first oil groove. The sleeve hole of the oiling nozzle mounting seat and the circumference of the lower end of the oiling spindle form a second oil groove. The second oil groove is an annular groove surrounding the circumference of the lower end of the oiling spindle, the oil outlet hole passes through the inner side of the annular groove, and the inner end of the oiling nozzle passes through the outer side of the annular groove, so that the oiling nozzle always keeps the oil supply connected when it rotates with the oiling nozzle mounting seat relative to the oiling spindle.

6. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: A positioning cylinder is provided on the oiling spindle, and a positioning groove is provided on the end of the oiling nozzle mounting seat away from the oiling nozzle. In the initial state, the positioning cylinder is directly opposite to the upper part of the positioning groove. When the oiling nozzle rotates 360 degrees relative to the oiling spindle to complete one circle of oiling the inner ring surface, the positioning groove is again directly opposite to the lower part of the positioning cylinder, and the positioning cylinder extends downward into the positioning groove to lock the current position of the oiling nozzle.

7. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: When oiling, the robot first extends the oiling spindle into the center of the circle of the hole to be oiled, then radially deviates outward to the set circumference, then moves along the set circumference for one circle to complete oiling along the inner wall of the hole to be oiled, then radially deviates inward to the center of the circle of the hole to be oiled, and finally exits the hole to be oiled.

8. The oiling mechanism compatible with different inner diameters according to claim 1, characterized in that: The manipulator includes a manipulator body, which includes a base, a rotating base, a first articulated arm and a second articulated arm connected in sequence; the rotating base can be automatically horizontally rotated relative to the base; one end of the first articulated arm is hinged to the upper end of the rotating base so as to be automatically rotatable relative to the upper end of the rotating base; one end of the second articulated arm is hinged to the other end of the first articulated arm so as to be automatically rotatable relative to the other end of the first articulated arm; the other end of the second articulated arm is provided with an extraction head for detachably connecting to the oiling spindle, and the upper end of the extraction head can be automatically rotatably connected to the other end of the second articulated arm.

9. The oiling mechanism compatible with different inner diameters according to claim 8, characterized in that: The oiling spindle is connected with an extraction adapter located at its side, and the extraction head can be selectively adsorbed and connected to or detached from the extraction adapter.

10. An oiling method, characterized in that: An oiling mechanism compatible with different inner diameters based on any one of claims 1-9; comprising the following steps: First, the product with the hole to be oiled is placed and positioned; then the robot carries the oiling spindle into the hole to be oiled and moves along a set circle to complete oiling along the inner circumference of the hole to be oiled, and the set circle is located between the center of the hole to be oiled and the inner circumference of the hole to be oiled; finally, the robot carries the oiling spindle out of the hole to be oiled.

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