An oiling device for automobile control arm dust cover installation

Abstract

The utility model provides a kind of oil injection device for automobile control arm dust cover installation, it is related to automobile control arm dust cover oil injection technical field, including workbench, dust cover oil injection mechanism is fixedly installed in workbench top side;Dust cover oil injection mechanism includes liftable oil injection assembly and support rod, for automatically oiling to dust cover inner wall;Dust cover oil injection mechanism side is provided with ball head pin oil injection mechanism;Ball head pin oil injection mechanism bottom is equipped with moving platform, for moving and annular oil injection to control arm ball head pin;And detachable positioning tool, for fixing dust cover and make it respectively with dust cover oil injection mechanism and ball head pin oil injection mechanism cooperation, to solve the technical problem that uneven oil injection or oil injection position deviation can appear when using manual operation during current automobile control arm dust cover installation, affect the assembly quality of dust cover and ball head pin, and too much manual participation can lead to overall assembly speed is slow, difficult to meet the needs of batch production.

Description

Technical Field

[0001] This utility model mainly relates to the field of oil injection technology for dust covers of automobile control arms, specifically to an oil injection device for the installation of dust covers of automobile control arms. Background Technology

[0002] Currently, the assembly of dust covers for automotive control arms mainly employs a two-step process: manual oiling and semi-automatic press-fitting. Specifically, operators must first manually oil the inner wall of the dust cover, then spray oil onto the ball joint pin, finally insert the dust cover onto the ball joint pin, and finally complete the press-fitting process using semi-automatic equipment.

[0003] The traditional technical solutions described above, which rely on manual operation, are prone to uneven oil injection or deviations in the oil spraying position, affecting the assembly quality of the dust cover and the ball head pin, and may even lead to poor sealing or abnormal noise. Furthermore, excessive manual intervention results in a slower overall assembly speed, making it difficult to meet the needs of mass production.

[0004] It should be noted that the above content falls within the scope of technical knowledge of those skilled in the art. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: This utility model provides an oil injection device for installing a dust cover on an automotive control arm, thereby solving the technical problems existing in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is: an oil injection device for installing a dust cover on an automotive control arm, comprising... The workbench has a dust cover and oil injection mechanism fixedly installed on one side of its top. The dust cover oiling mechanism includes a liftable oil spraying assembly and a support rod, used for automatically oiling the inner wall of the dust cover; A ball-head pin oil spraying mechanism is provided on the side of the dust cover oil injection mechanism; The ball joint injection mechanism is equipped with a moving platform at its bottom, which is used to move the ball joint of the control arm and inject oil in a ring. It also includes detachable positioning fixtures for fixing the dust cover and cooperating with the dust cover oiling mechanism and the ball pin oiling mechanism, respectively.

[0007] The workers first place the dust cover to be assembled on the positioning fixture, then place the positioning fixture on the support rod. The dust cover oiling mechanism sprays oil on the inner bottom of the dust cover, completing the inner wall oiling. Then, the dust cover with the bottom oiled, along with the positioning fixture, is placed on the ball joint pin of the control arm, and the ball joint pin is placed on the moving platform. The moving platform moves to the ball joint pin oiling mechanism on the side, where the ball joint pin oiling mechanism sprays oil in a ring shape on the ball joint pin area, facilitating subsequent dust cover assembly. The dust cover oiling mechanism and the ball joint pin oiling mechanism provided in this application can operate simultaneously, improving oiling efficiency.

[0008] Furthermore, the oil spraying assembly includes an L-shaped base, a lifting cylinder is connected to the side of the L-shaped base, a telescopic shaft at the top of the lifting cylinder is connected to a spray support plate, an oil spray groove is opened on the side of the spray support plate, and annular nozzles are spaced at the bottom of the oil spray groove. The L-shaped base is provided with a support rod on its front side, and the positioning fixture is inserted into the top of the support rod.

[0009] Furthermore, a position sensor is provided on the rear side of the L-shaped base.

[0010] Furthermore, the ball-head pin injection mechanism includes a support platform, vertical support frames symmetrically arranged on both sides of the top of the support platform, two sliding rods symmetrically arranged on the inner side of the vertical support frames, the sliding rods being matched and connected to a telescopic platform, an L-shaped support frame being detachably connected to the end of the telescopic platform, a rotary injection mechanism being detachably connected to the end of the L-shaped support frame, and a distance sensor being provided on the side surface of the ball-head pin injection mechanism.

[0011] Furthermore, the telescopic platform includes a concave support frame, with an oil supply tank connected to the top of the concave support frame, a sliding frame threaded to one side of the bottom of the concave support frame, the sliding frame being matched and connected to the sliding rod, and a second telescopic cylinder connected to the middle of the vertical support frame at the rear end, the telescopic shaft of the second telescopic cylinder being connected to the sliding frame.

[0012] Furthermore, the rotary oil injection mechanism includes a servo motor connected to the L-shaped support frame. The bottom of the servo motor is connected to a transmission box, and a rotating disk is connected to the bottom bearing on the outer side of the transmission box. The servo motor is connected to the rotating disk via gear transmission. The bottom of the rotating disk is connected to the oil injection unit. A first through hole is opened in the middle of the rotating disk, and a second through hole is opened at the corresponding position of the transmission box. An oil supply pipe frame is fixedly connected to the top side of the second through hole. An oil supply pipe is provided inside the oil supply pipe frame. One end of the oil supply pipe is connected to the oil supply tank, and the other end of the oil supply pipe is connected to the oil injection unit.

[0013] Furthermore, the oil spraying unit includes a concave connecting frame, the top of which is connected to the rotating disk, one side of the bottom of the concave support frame is connected to the oil nozzle, the side of the oil nozzle is connected to the oil supply pipe, the side of the support platform is connected to the support plate, and a collection box is placed at the end of the support plate.

[0014] Furthermore, the bottom of the mobile platform is slidably connected to the mobile track via symmetrically arranged sliders. The bottom of the mobile platform is equipped with a third telescopic cylinder, the telescopic shaft of which is connected to the bottom of the mobile platform. A positioning frame is triangularly arranged on the top of the mobile platform, and the top of the positioning frame is snapped into the control arm body. The positioning fixture can be inserted into the ball joint pin of the control arm.

[0015] Furthermore, the positioning frame includes a first support frame, the top of which has a concave groove that is adapted to the ball joint pin portion of the control arm. A second support frame and a third support frame are arranged in a triangular configuration on the side of the first support frame. A positioning protrusion is provided on the side of the second support frame. A concave placement groove is provided on the top of the third support frame. The concave placement groove and the positioning protrusion are adapted to the bottom connection of the control arm. A fourth telescopic cylinder is provided at the rear end of the second support frame. The telescopic shaft of the fourth telescopic cylinder is connected to the concave positioning block.

[0016] Furthermore, the positioning fixture includes a conical positioning post, a first positioning hole at the bottom of the conical positioning post, a locking step on the outside of the conical positioning post, the locking step being adapted to the notch at the top of the dust cover, and a second positioning hole at the top of the conical positioning post.

[0017] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: This solution achieves simultaneous lubrication of the dust cover and ball head pin through modular design, significantly improving assembly efficiency. The dust cover lubrication mechanism uses a lifting oil spraying component and positioning fixture to ensure uniform spraying of lubricating oil onto the inner wall; the ball head pin oil spraying mechanism achieves precise circular spraying through a moving platform and rotating oil spraying mechanism, and the two work together to reduce process waiting time.

[0018] The design of the collection box and positioning fixture further avoids oil contamination and equipment cleaning issues.

[0019] The overall device has a compact structure, and the positioning fixture can be adapted to different models of control arms, offering strong expandability. Through a split-type oil injection design and intelligent detection logic, it not only meets the differentiated oiling needs of the dust cover and ball joint pin, but also provides a reliable lubrication foundation for subsequent assembly processes, effectively extending the service life of components.

[0020] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified structural diagram at point A.

[0022] Figure 3 This is a schematic diagram of the oil injection mechanism for the dust cover of this utility model; Figure 4 This is a schematic diagram of the mobile platform and ball-head pin oil injection mechanism of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram at point B; Figure 6 This is a schematic diagram of the structure of the mobile platform of this utility model; Figure 7 This is a side view of the mobile platform and ball-head pin oil injection mechanism of this utility model. Figure 8 This is a schematic diagram of the positioning tooling structure of this utility model.

[0023] Figure label: 1. Workbench; 2. Dust cover oil injection mechanism; 3. Oil spray assembly; 31. L-shaped base; 32. Lifting cylinder; 33. Spray support plate; 34. Oil spray groove; 35. Annular nozzle; 36. Position sensor; 4. Support rod; 5. Ball-head pin oil spray mechanism; 51. Support platform; 52. Vertical support frame; 53. Sliding rod; 54. Telescopic platform; 541. Concave support frame; 542. Oil supply tank; 543. Sliding frame; 544. Second telescopic cylinder; 55. L-shaped support frame; 56. Rotary oil spray mechanism; 561. Servo motor; 562. Transmission box; 563. Rotary disk; 564. Oil spray section; 5 641. Concave connecting bracket; 5642. Fuel injector; 5643. Support plate; 5644. Collection box; 565. Second through hole; 566. Oil pipe bracket; 57. Distance sensor; 6. Moving platform; 61. Moving track; 62. Third telescopic cylinder; 63. Positioning frame; 631. First support frame; 632. Concave groove; 633. Second support frame; 634. Third support frame; 635. Positioning protrusion; 636. Concave placement groove; 637. Fourth telescopic cylinder; 638. Concave positioning block; 7. Positioning fixture; 71. Conical positioning post; 72. First positioning hole; 73. Locking step. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] It should be noted that the structures not described in this utility model do not involve the design points and improvement directions of this utility model, and can all adopt existing technologies known to those skilled in the art.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] See attached document Figure 1-8 An oiling device for installing a dust cover on an automotive control arm, comprising: Workbench 1, with a dust cover oiling mechanism 2 fixedly installed on one side of the top of the workbench 1; The dust cover oiling mechanism 2 includes a liftable oil spraying assembly 3 and a support rod 4, which are used to automatically oil the inner wall of the dust cover. A ball-head pin oil spraying mechanism 5 is provided on the side of the dust cover oil injection mechanism 2; The ball joint injection mechanism 5 is equipped with a moving platform 6 at its bottom, which is used to move the ball joint of the control arm and inject oil in a ring. And a detachable positioning fixture 7, used to fix the dust cover and make it cooperate with the dust cover oiling mechanism 2 and the ball pin oiling mechanism 5 respectively.

[0031] In this embodiment, the worker first places the dust cover to be assembled on the positioning fixture 7, then places the positioning fixture 7 on the support rod 4. The dust cover oiling mechanism 2 performs oil spraying on the inner side of the bottom of the dust cover, completing the inner wall oiling of the dust cover. Then, the dust cover with the bottom oiled, along with the positioning fixture 7, is placed at the ball joint pin of the control arm, and the ball joint pin of the control arm is placed on the moving platform 6. The moving platform 6 moves to the ball joint pin oiling mechanism 5 on the side. The ball joint pin oiling mechanism 5 performs annular oil spraying on the ball joint pin, which facilitates the subsequent assembly of the dust cover. The dust cover oiling mechanism 2 and the ball joint pin oiling mechanism 5 provided in this application can operate simultaneously, improving the oiling efficiency.

[0032] The oil spraying assembly 3 includes an L-shaped base 31, a lifting cylinder 32 connected to the side of the L-shaped base 31, a telescopic shaft at the top of the lifting cylinder 32 connected to a spray support plate 33, an oil spraying groove 34 opened on the side of the spray support plate 33, and annular nozzles 35 spaced apart at the bottom of the oil spraying groove 34. The L-shaped base 31 is provided with the support rod 4 on the front side, and the positioning fixture 7 is inserted into the top of the support rod 4; In this embodiment, the annular nozzles 35 are connected to the lubricating oil tank on both sides via oil supply lines, facilitating subsequent oil spraying operations. The oil supply lines are not shown in the figure. The angle of the multiple annular nozzles 35 is obliquely upward, allowing direct spraying into the dust cover. When the dust cover oiling mechanism 2 is working, the dust cover is placed on top of the positioning fixture 7, and the positioning fixture 7 is placed on top of the support rod 4 for limiting. Then, the lifting cylinder 32 drives the spray support plate 33 and the annular nozzles 35 to move upward, so that the bottom annular nozzles 35 are aligned with the inside of the dust cover for spraying. Lubricating oil is evenly sprayed on the inner wall of the dust cover, facilitating the subsequent assembly operation of the dust cover and the ball head pin.

[0033] The L-shaped base 31 is provided with a position sensor 36 on the rear side. In this embodiment, the position sensor 36 is used to detect whether the positioning fixture 7 is placed on the support rod 4. The spraying operation will start after the positioning fixture 7 is detected.

[0034] The ball-head pin spraying mechanism 5 includes a support platform 51, vertical support frames 52 symmetrically arranged on both sides of the top of the support platform 51, and two sliding rods 53 symmetrically arranged on the inner side of the vertical support frames 52. The sliding rods 53 are matched and connected to a telescopic platform 54. An L-shaped support frame 55 is detachably connected to the end of the telescopic platform 54. A rotary spraying mechanism 56 is detachably connected to the end of the L-shaped support frame 55. A distance sensor 57 is provided on the side surface of the ball-head pin spraying mechanism 5. In this embodiment, when the distance sensor 57 detects that the moving platform 6 has moved to a preset position at the front end of the ball-head pin spraying mechanism 5, the telescopic platform 54 extends outward, and the rotary spraying mechanism 56 at the end rotates around the ball-head pin of the control arm to perform a spraying operation on the ball-head pin of the control arm. After the spraying is completed, the telescopic platform 54 is reset, and the moving platform 6 moves to the dust cover assembly mechanism to wait for the next operation. The ball-head pin spraying mechanism 5 can realize automated spraying operation and improve the overall assembly efficiency.

[0035] The telescopic platform 54 includes a concave support frame 541. The top of the concave support frame 541 is connected to the oil supply tank 542. A sliding frame 543 is threadedly connected to one side of the bottom of the concave support frame 541. The sliding frame 543 is matched and connected to the sliding rod 53. The middle of the vertical support frame 52 at the rear end is connected to a second telescopic cylinder 544. The telescopic shaft of the second telescopic cylinder 544 is connected to the sliding frame 543. In this embodiment, when the rotating oil injection mechanism 56 needs to move forward to perform oil injection, when the telescopic shaft of the second telescopic cylinder 544 works, it can drive the sliding frame 543 to slide forward on the sliding rod 53, thereby driving the front-end rotating oil injection mechanism 56 to approach the ball head pin to perform oil injection. After the oil injection is completed, the second telescopic cylinder 544 drives the sliding frame 543 to reset.

[0036] The rotary oil injection mechanism 56 includes a servo motor 561, which is connected to the L-shaped support frame 55. The bottom of the servo motor 561 is connected to a transmission box 562. A rotating disk 563 is connected to the bottom outer side of the transmission box 562 via a bearing. The servo motor 561 is connected to the rotating disk 563 via gear transmission. The bottom of the rotating disk 563 is connected to an oil injection unit 564. A first through hole is formed in the middle of the rotating disk 563, and a second through hole 565 is formed at a corresponding position in the transmission box 562. An oil supply pipe bracket 566 is fixedly connected to one side of the top of the second through hole 565. The oil pipe rack 566 is equipped with an oil supply pipe. One end of the oil supply pipe is connected to the oil supply tank 542, and the other end of the oil supply pipe is connected to the oil spraying unit 564. In this embodiment, when it is necessary to spray oil onto the ball head pin, the telescopic table 54 drives the rotating oil spraying mechanism 56 to move forward to the ball head pin. The servo motor 561 at the top starts to work, and drives the rotating disk 563 to rotate one revolution through the gear. This causes the oil spraying unit 564 at the bottom to spray oil around the ball head pin. After the oil spraying is completed, the servo motor 561 reverses and resets. The oil supply tank 542 is connected to the oil spraying unit 564 through the oil supply pipe to deliver lubricating oil.

[0037] The oil spraying unit 564 includes a concave connecting frame 5641. The top of the concave connecting frame 5641 is connected to the rotating disk 563. One side of the bottom of the concave support frame 541 is connected to the oil nozzle 5642. The side of the oil nozzle 5642 is connected to the oil supply pipe. The side of the support platform 51 is connected to the support plate 5643. The end of the support plate 5643 is equipped with a collection box 5644. In this embodiment, when oil spraying is required, the lower oil nozzle 5642 starts to work. The rotating disk 563 drives the oil nozzle 5642 to make a circular motion, thereby spraying the ball head pin in a ring. After the sliding frame 543 retracts, the bottom oil nozzle 5642 of the collection box 5644 will correspond to it in a vertical position, preventing the lubricating oil at the oil nozzle 5642 from dripping onto the worktable 1.

[0038] The bottom of the mobile platform 6 is slidably connected to the mobile track 61 via symmetrically arranged sliders. The bottom of the mobile platform 6 is provided with a third telescopic cylinder 62, the telescopic shaft of which is connected to the bottom of the mobile platform 6. The top of the mobile platform 6 is provided with a triangular positioning frame 63, the top of which is engaged with the control arm body. The positioning fixture 7 can be inserted into the ball joint pin of the control arm. In this embodiment, after the control arm is positioned on the positioning frame 63, the positioning fixture 7 is placed at the ball joint pin. The third telescopic cylinder 62 at the bottom will drive the positioning fixture 7 to move towards the ball joint pin oil spraying mechanism 5 on the side. After the oil spraying at the ball joint pin is completed, the third telescopic cylinder 62 will drive it to reset again to wait for the next round of operation.

[0039] The positioning frame 63 includes a first support frame 631, with a concave groove 632 on its top, which is adapted to the ball joint pin portion of the control arm. A second support frame 633 and a third support frame 634 are arranged in a triangular configuration on the side of the first support frame 631. A positioning protrusion 635 is provided on the side of the second support frame 633. A concave placement groove 636 is provided on the top of the third support frame 634, and the concave placement groove 636 and the positioning protrusion 635 are adapted to the bottom connection point of the control arm. A fourth telescopic cylinder 637 is provided at the rear end of the second support frame 633, and the telescopic shaft of the fourth telescopic cylinder 637 is connected to a concave positioning block 638. In this embodiment, a sensor is provided at the bottom of the concave groove 632. When the control arm needs to be installed, the ball head pin of the control arm is placed in the concave groove 632. After the sensor detects the sensor, subsequent supplementary steps are taken. The positioning fixture 7 is placed on the top of the ball head pin. The two corner brackets at the bottom of the upper control arm are placed in the positioning protrusion 635 and the concave placement groove 636, respectively. Finally, the fourth telescopic cylinder 637 drives the concave positioning block to further position the control arm on the second support frame 633, improving the stability during subsequent processing. It should be noted that the positioning frame 63 in this application can also adopt other structures to support different types of control arms, facilitating the processing of different types of control arms.

[0040] The positioning fixture 7 includes a tapered positioning post 71. The tapered positioning post 71 has a first positioning hole 72 at its bottom, which is matched and connected to the ball head pin and the support rod 4. The tapered positioning post 71 has a locking step 73 on its outer side, which is adapted to the notch at the top of the dust cover. The tapered positioning post 71 has a second positioning hole at its top. In this embodiment, the positioning fixture 7 can support the dust cover. When the dust cover needs to be processed, it is fitted onto the end of the tapered positioning post 71. The locking step 73 positions the top of the dust cover. The locking step 73 is a tilted structure, which facilitates the dust cover to be removed from the locking step 73 later. When it is necessary to spray oil inside the dust cover, the bottom of the tapered positioning post 71 is aligned with the support rod 4 and inserted. When it is necessary to spray oil at the ball head pin, the bottom of the first positioning hole 72 is aligned with the ball head pin.

[0041] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An oiling device for control arm dust boot installation, characterized by: include Workbench (1), with a dust cover oiling mechanism (2) fixedly installed on one side of the top of the workbench (1); The dust cover oiling mechanism (2) includes a liftable oil spraying assembly (3) and a support rod (4) for automatically oiling the inner wall of the dust cover; The dust cover oil injection mechanism (2) is provided with a ball head pin oil spraying mechanism (5) on the side; The ball head pin oil injection mechanism (5) is provided with a moving platform (6) at the bottom, which is used to move the ball head pin of the control arm and inject oil in a ring. And a detachable positioning fixture (7) for fixing the dust cover and making it cooperate with the dust cover oiling mechanism (2) and the ball pin oiling mechanism (5) respectively.

2. The oil injection device for mounting the dust cover of the control arm of an automobile according to claim 1, characterized in that: The oil spraying assembly (3) includes an L-shaped base (31), a lifting cylinder (32) is connected to the side of the L-shaped base (31), a telescopic shaft at the top of the lifting cylinder (32) is connected to a spray support plate (33), an oil spray groove (34) is opened on the side of the spray support plate (33), and an annular nozzle (35) is provided at intervals at the bottom of the oil spray groove (34). The L-shaped base (31) has a support rod (4) on its front side, and the positioning fixture (7) is inserted into the top of the support rod (4).

3. The oil injection device for mounting of dust boot of control arm of automobile according to claim 2, characterized in that: A position sensor (36) is provided on the rear side of the L-shaped base (31).

4. The oil injection device for mounting of dust boot of control arm of automobile according to claim 1, wherein: The ball-head pin injection mechanism (5) includes a support platform (51), vertical support frames (52) symmetrically arranged on both sides of the top of the support platform (51), two sliding rods (53) symmetrically arranged on the inner side of the vertical support frame (52), the sliding rods (53) are matched and connected to the telescopic platform (54), the end of the telescopic platform (54) is detachably connected to the L-shaped support frame (55), the end of the L-shaped support frame (55) is detachably connected to the rotary injection mechanism (56), and the ball-head pin injection mechanism (5) is provided with a distance sensor (57) on its side surface.

5. The oiling device for mounting of dust boot of control arm of automobile according to claim 4, characterized in that: The telescopic platform (54) includes a concave support frame (541), the top of which is connected to an oil supply tank (542), and the bottom side of the concave support frame (541) is threadedly connected to a sliding frame (543). The sliding frame (543) is matched and connected to the sliding rod (53). The middle of the vertical support frame (52) at the rear end is connected to a second telescopic cylinder (544), and the telescopic shaft of the second telescopic cylinder (544) is connected to the sliding frame (543).

6. The oiling device for mounting of dust boot of control arm of automobile according to claim 5, characterized in that: The rotary oil injection mechanism (56) includes a servo motor (561), which is connected to the L-shaped support frame (55). The bottom of the servo motor (561) is connected to a transmission box (562). The bottom bearing of the transmission box (562) is connected to a rotating disk (563). The servo motor (561) is connected to the rotating disk (563) through gear transmission. The bottom of the rotating disk (563) is connected to an oil injection unit (564). A first through hole is opened in the middle of the rotating disk (563). A second through hole (565) is opened at the corresponding position of the transmission box (562). An oil supply pipe frame (566) is fixedly connected to the top side of the second through hole (565). An oil supply pipe is provided inside the oil supply pipe frame (566). One end of the oil supply pipe is connected to the oil supply tank (542), and the other end of the oil supply pipe is connected to the oil injection unit (564).

7. The oiling device for mounting of dust boot of control arm of automobile according to claim 6, characterized in that: The oil spraying unit (564) includes a concave connecting frame (5641), the top of which is connected to the rotating disk (563), the bottom side of which is connected to the oil nozzle (5642), the side of which is connected to the oil supply pipe, the side of which is connected to the support plate (51), and the end of which is placed a collection box (5644).

8. The oil injection unit for mounting of dust boot of control arm of vehicle as claimed in claim 1 wherein: The bottom of the mobile platform (6) is slidably connected to the mobile track (61) by symmetrically arranged sliders. The bottom of the mobile platform (6) is provided with a third telescopic cylinder (62). The telescopic shaft of the third telescopic cylinder (62) is connected to the bottom of the mobile platform (6). The top of the mobile platform (6) is provided with a triangular positioning frame (63). The top of the positioning frame (63) is snapped into the main body of the control arm. The positioning fixture (7) can be inserted into the ball head pin of the control arm.

9. The oiling device for mounting of dust boot of control arm of automobile according to claim 8, characterized in that: The positioning frame (63) includes a first support frame (631), the first support frame (631) has a concave groove (632) on its top, the concave groove (632) is adapted to the ball joint pin of the control arm, the first support frame (631) has a second support frame (633) on its side and a third support frame (634) arranged in a triangle, the second support frame (633) has a positioning protrusion (635) on its side, the third support frame (634) has a concave placement groove (636) on its top, the concave placement groove (636) and the positioning protrusion (635) are adapted to the bottom connection of the control arm, the second support frame (633) has a fourth telescopic cylinder (637) at its rear end, the telescopic shaft of the fourth telescopic cylinder (637) is connected to the concave positioning block (638).

10. The oil injection unit for mounting of dust boot of control arm of vehicle as claimed in claim 1 wherein: The positioning fixture (7) includes a conical positioning post (71), a first positioning hole (72) at the bottom of the conical positioning post (71), a locking step (73) on the outside of the conical positioning post (71), the locking step (73) being adapted to the notch at the top of the dust cover, and a second positioning hole at the top of the conical positioning post (71).

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