A bracing rod assembly length detection and oiling device

Abstract

This utility model discloses a strut assembly length detection and oiling device, including a rotary positioning drive module that drives the A end of the lead screw to rotate and axially positions the A end, a length measuring module that approaches the B end of the lead screw along the X direction to measure the length of the lead screw, and an oiling module that applies oil to a designated section of the lead screw. This utility model solves the technical problems of separating the lead screw assembly length detection and multi-section oiling processes, low efficiency, and the corrugated pipe obstructing the oiling area by integrating the rotary positioning drive, the movable length measuring and oiling modules, and innovatively introducing a bellows compression and follow-up oil receiving mechanism. It achieves high-precision automatic detection of the lead screw length and accurate and efficient oiling of designated sections.

Description

Technical Field

[0001] This utility model belongs to the technical field of oiling devices, and in particular relates to an oiling device for detecting the length of a strut assembly. Background Technology

[0002] In the production and assembly of automotive side door switch drive modules, the strut assembly, as a core transmission component, directly affects the product's performance and lifespan due to its length accuracy and surface lubrication quality. Currently, the industry commonly uses manual labor or dedicated machines to perform length detection and lubrication separately, resulting in low efficiency, inconsistent measurement standards, and poor consistency in lubrication positions. Especially when dealing with strut assemblies of different specifications, traditional equipment lacks versatility and struggles to adapt to flexible production requirements. Furthermore, the corrugated tube surrounding the lead screw in the strut assembly can obstruct the lubrication area, further increasing the difficulty of automated lubrication. Therefore, there is an urgent need to develop an integrated device capable of automatically completing lead screw length detection and precise lubrication of designated sections on a single unit, thereby improving production efficiency and process quality. Utility Model Content

[0003] The main purpose of this utility model is to provide a strut assembly length detection and oiling device. By integrating a rotary positioning drive, a movable length measuring and oiling module, and innovatively introducing a bellows compression and follow-up oil receiving mechanism, it solves the technical problems of separation of screw assembly length detection and multi-segment oiling process, low efficiency, and bellows obstructing the oiling area. It realizes high-precision automatic detection of screw length and accurate and efficient oiling of designated sections.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a strut assembly length detection and oiling device, comprising a rotation positioning drive module that drives the A end of the lead screw to rotate and axially positions the A end, a length measuring module that approaches the B end of the lead screw along the X direction to measure the length of the lead screw, and an oiling module that applies oil to a set section of the lead screw.

[0005] Furthermore, the rotary positioning drive module includes a first drive component, a rotary support base driven by the first drive component to rotate around the X-axis, a first end support block fixed on the rotary support base and supporting the lead screw A end, and a first hole positioning post fixed on the rotary support base and cooperating with the hole at the lead screw A end to achieve axial positioning of the lead screw.

[0006] Furthermore, the first end support block is provided with a first clearance notch to allow the lead screw A end to pass through.

[0007] Furthermore, the length measuring module includes a second driving component, a first support plate driven by the second driving component to move along the X direction, a second end support block fixed on the first support plate and used to support the B end of the lead screw, a first cylinder fixed on the first support plate, and a displacement sensor driven by the first cylinder to move along the X direction and aligned with the B end of the lead screw.

[0008] Furthermore, the second end support block is provided with a second clearance notch to allow the lead screw B end to pass through; the movable end of the first cylinder is provided with a third support plate, the displacement sensor is mounted on the third support plate, and the third support plate is also provided with an elastic guide sleeve adapted to the lead screw B end, the sensing rod of the displacement sensor passing through the elastic guide sleeve.

[0009] Furthermore, the oiling module includes a third driving member, a second support plate that is driven by the third driving member to move in the X direction, an oiling valve disposed on the second support plate, and a vision camera disposed on the second support plate.

[0010] Furthermore, it also includes a bellows compression module for a bellows on an axially compressed lead screw; the bellows compression module includes a second cylinder and a compression stop that is driven by the second cylinder to move in the X direction; the compression stop is provided with a third clearance notch to avoid the lead screw passing through; the compression stop is slidably mounted on a slide rail extending in the X direction by a slider.

[0011] Furthermore, it also includes an oil receiving groove to collect oil droplets falling from the lead screw.

[0012] Furthermore, one end of the oil receiving groove is fixed to the extrusion block, and a support block is provided at the bottom of the other end of the oil receiving groove, with rollers provided at the bottom of the support block; the oil receiving groove is raised by the extrusion block and the support block.

[0013] Furthermore, the second cylinder is located below the oil receiving groove.

[0014] Compared with existing technologies, the advantages of this utility model's strut assembly length detection and oiling device are as follows: By integrating a rotary positioning drive, a movable length measuring and oiling module, and innovatively introducing a bellows compression and follow-up oil receiving mechanism, it solves the technical problems of separation between the screw assembly length detection and multi-segment oiling processes, low efficiency, and bellows obstructing the oiling area. This achieves high-precision automatic detection of the screw length and accurate and efficient oiling of designated sections. Specifically: (1) By working together with the rotary positioning drive module, the length measuring module and the oiling module, the automatic detection of screw length and the continuous completion of multi-segment oiling in a single station are realized, which effectively reduces the process change and workpiece handling time and greatly improves production efficiency. (2) The device adopts a movable second end support block and an oiling module, which can quickly adapt to different length specifications of lead screws through program adjustment, and has excellent flexible production capabilities; at the same time, the coordination between the oiling module and the lead screw rotation can meet the requirements of complex, multi-section oiling processes. (3) Axial positioning is performed using the end hole of the lead screw as a reference, which provides a unified and accurate reference for length measurement and ensures the accuracy of the test results; the introduction of the vision camera enables real-time monitoring and feedback of the oiling effect, ensuring the reliability and stability of the oiling quality. (4) The original bellows compression module effectively solves the technical problem of bellows blocking the oiling area; the follow-up design of the oil receiving groove not only keeps the working environment clean, but its compact layout with the cylinder also reflects the ingenuity of space utilization, making the whole machine structure more reasonable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the rotary positioning drive module and the bellows compression module in the embodiments of this utility model; Figure 3 This is a schematic diagram of the structure of the oiling module and the length measuring module in the embodiments of this utility model; Figure 4 This is a partial structural diagram of the length measuring module in an embodiment of this utility model; The numbers in the diagram represent: 100-Strut assembly length detection and oiling device; 200-Screw assembly, 201-Screw, 202-Bellwall, 203-Orifice; 1-Rotary positioning drive module, 11-First drive component, 12-Rotary support base, 13-First end support block, 131-First clearance notch, 14-Hole positioning post; 2-Length measuring module, 21-Second driving component, 22-First support plate, 23-Second end support block, 231-Second clearance notch, 24-First cylinder, 25-Displacement sensor, 26-Third support plate, 27-Elastic guide sleeve; 3-Oil coating module, 31-Third drive component, 32-Second support plate, 33-Oil coating valve, 34-Vision camera; 4- Bellows compression module, 41- Second cylinder, 42- Extrusion stop, 421- Third clearance notch, 43- Material sensing sensor, 44- Slide rail; 5-Oil receiving groove, 51-Support block, 52-Roller. Detailed Implementation

[0016] Example 1: Please refer to Figures 1-4 This embodiment describes a strut assembly length detection and oiling device 100. It is used to measure the length of the lead screw 201 in the lead screw assembly 200, and to apply oil to the outer peripheral surface of a designated axial section of the lead screw 201. In this embodiment, the lead screw assembly 200 is assembled with a motor assembly to form part of the strut assembly. Therefore, the length detection and oiling device in this embodiment is mainly used for length detection and oiling of the lead screw in the strut assembly.

[0017] This embodiment of a strut assembly length detection and oiling device 100 includes a rotation positioning drive module 1 that drives the A end of the lead screw 201 to rotate and axially positions the A end, a length measuring module 2 that approaches the B end of the lead screw 201 along the X direction to measure the length of the lead screw 201, and an oiling module 3 that applies oil to a set section of the lead screw 201.

[0018] Since the lead screw lengths vary in different specifications or types of automotive side door switch drive modules, this embodiment uses end A of lead screw 201 as a reference and measures the length of lead screw 201 by detecting the position of end B to meet the length detection and lubrication requirements of various lead screw length specifications. Simultaneously, to meet the rotation requirements during lead screw lubrication, this embodiment integrates the positioning of end A of the lead screw with the rotation drive, thus designing a rotation positioning drive module 1. Specifically: On one hand, the rotary positioning drive module 1 includes a first drive member 11, a rotary support base 12 driven by the first drive member 11 to rotate around the X-axis, a first end support block 13 fixed on the rotary support base 12 and supporting the lead screw A end, and a hole positioning post 14 fixed on the rotary support base 12 and cooperating with the hole 203 at the lead screw A end to achieve axial positioning of the lead screw. The first end support block 13 is provided with a first clearance notch 131 to avoid the lead screw A end from passing through. When placing the lead screw assembly 200, the hole 203 at the lead screw A end is aligned with the hole positioning post 14 and placed, and the rod body of the lead screw 201 is placed in the first clearance notch 131 in the first end support block 13 to achieve positioning of the lead screw A end. The first drive member 11 can drive the rotary support base 12 to rotate with the lead screw 201 to meet the rotation requirements during the lead screw oiling process; the hole positioning post 14 achieves accurate positioning of the lead screw A end, providing a unified benchmark for lead screw length measurement.

[0019] On the other hand, the length measuring module 2 includes a second driving member 21, a first support plate 22 driven by the second driving member 21 to move in the X direction, a second end support block 23 fixed on the first support plate 22 for supporting the B end of the lead screw, a first cylinder 24 fixed on the first support plate 22, and a displacement sensor 25 driven by the first cylinder 24 to move in the X direction and aligned with the B end of the lead screw. The second end support block 23 is provided with a second clearance notch 231 to avoid the B end of the lead screw from passing through. With the setting of the second driving member 21, the second end support block 23 can be driven to move to the corresponding position according to the specifications of the lead screw assembly 200, providing support for the B end of the lead screw 201, while meeting the B end support requirements of lead screws of various specifications and lengths, thus improving versatility. By driving the displacement sensor 25 to contact the B end of the lead screw through the first cylinder 24, the length of the lead screw 201 can be measured, realizing automatic measurement of the lead screw length.

[0020] To improve the accuracy of the displacement sensor 25 aligning with the lead screw end B, a third support plate 26 is provided at the movable end of the first cylinder 24. The displacement sensor 25 is mounted on the third support plate 26, which also has an elastic guide sleeve 27 adapted to the lead screw end B. The sensing rod of the displacement sensor 25 passes through the elastic guide sleeve 27. When the first cylinder 24 drives the third support plate 26 to approach the lead screw end B, the elastic guide sleeve 27 first contacts the lead screw end B, and the lead screw end B extends into the elastic guide sleeve 27. As the third support plate 26 continues to approach, the sensing rod of the displacement sensor 25 accurately contacts the lead screw end B, completing the length measurement.

[0021] The oiling module 3 includes a third driving component 31, a second support plate 32 driven by the third driving component 31 to move along the X direction, and an oiling valve 33 disposed on the second support plate 32. A vision camera 34 is also disposed on the second support plate 32, which can detect the oiling effect of each oiling section, ensuring correct oiling position and complete oiling. The third driving component 31 not only meets the oiling needs of different sections on the same lead screw or the need for axially continuous oiling, but also meets the oiling needs of lead screws of different lengths, improving the versatility of the equipment.

[0022] Because a bellows 202 is fitted onto the lead screw 201, and the bellows 202 is relatively long in its natural state, obscuring part of the oiled section of the lead screw 201, this embodiment also includes a bellows compression module 4 for axially compressing the bellows 202 to solve this technical problem. The bellows compression module 4 includes a second cylinder 41 and a compression stop 42 that is driven by the second cylinder 41 to move along the X direction. The compression stop 42 is provided with a third clearance notch 421 to avoid the lead screw 201 passing through. The compression stop 42 is also provided with a material sensing sensor 43 for detecting whether material is placed on the compression stop 42. The compression stop 42 is slidably mounted on a slide rail 44 extending along the X direction by a slider.

[0023] Since excess oil drips from the lead screw 201 during the oiling process, this embodiment also includes an oil receiving groove 5 to collect the oil drips from the lead screw 201 in order to ensure the cleanliness of the work site. In order to ensure that the oil receiving groove 5 can completely cover the oiling section of the lead screw 201, one end of the oil receiving groove 5 is fixed to the extrusion block 42, and the bottom of the other end of the oil receiving groove 5 is provided with a support block 51. The bottom of the support block 51 is provided with a roller 52, so that the oil receiving groove 5 can move with the extrusion block 42, thereby collecting the oil drips from all the glue-coating sections of the lead screw 201 directly below the lead screw 201.

[0024] In addition, the second cylinder 41 is located below the oil receiving groove 5. The oil receiving groove 5 is raised by the support block 51 and the extrusion stop block 42, leaving space below to provide installation space for the second cylinder 41. This also cleverly positions the oil receiving groove 5 directly below the lead screw 201, better catching oil droplets falling during the oiling process. The support block 51, together with the bottom roller 52, allows one end of the oil receiving groove 5 to move with the other end of the oil receiving groove 5 and maintain an effective horizontal state.

[0025] The working principle of the strut assembly length detection and oiling device 100 in this embodiment is as follows: The second driving member 21 drives the second end support block 23 to move to the corresponding receiving position according to the specifications of the strut assembly 200 to be detected; the A end of the strut assembly 200 is placed on the first end support block 13 and the B end is placed on the second end support block 23, and the A end of the strut is positioned by inserting the eyelet positioning post 14 into the eyelet 203 of the A end of the strut; the first cylinder 24 drives the displacement sensor 25 to contact the B end of the strut and measure the length of the strut 201; the second cylinder 41 drives the extrusion stop block 42 to axially extrude the bellows 202 towards the A end of the strut, so that all the glued areas on the strut 201 are exposed. At this time, the oil is received. As the extrusion stop 42 moves into position, the groove 5 moves to the correct position; the third drive unit 31 drives the oiling valve 33 to move to the first oiling starting position, and then moves axially by a set length to complete the oiling of the first section. During the oiling process, the first drive unit 11 can selectively drive the lead screw 201 to rotate according to the oiling scheme. In this embodiment, the lead screw 201 remains stationary during the oiling of the first section. After the oiling of the first section is completed, the first drive unit 11 drives the lead screw 201 to rotate by a set angle, and then the oiling valve 33 starts the oiling of the second section according to the oiling action of the first section. The lead screw 201 rotates by a set angle again to perform the oiling of the third section, and so on, until the oiling of all sections is completed, thus realizing automatic oiling of the lead screw.

[0026] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A strut assembly length detection and oiling device, characterized in that, It includes a rotary positioning drive module that drives the lead screw A end to rotate and axially positions the A end, a length measuring module that approaches the lead screw B end along the X direction to measure the length of the lead screw, and an oiling module that applies oil to a set section of the lead screw.

2. The strut assembly length detection and oiling device as described in claim 1, characterized in that, The rotary positioning drive module includes a first drive component, a rotary support base that is driven by the first drive component to rotate around the X-axis, a first end support block fixed on the rotary support base and supporting the A end of the lead screw, and a first hole positioning post fixed on the rotary support base and cooperating with the hole at the A end of the lead screw to achieve axial positioning of the lead screw.

3. The strut assembly length detection and oiling device as described in claim 2, characterized in that, The first end support block is provided with a first clearance notch to allow the lead screw A end to pass through.

4. The strut assembly length detection and oiling device as described in claim 1, characterized in that, The length measuring module includes a second driving component, a first support plate driven by the second driving component to move along the X direction, a second end support block fixed on the first support plate and used to support the B end of the lead screw, a first cylinder fixed on the first support plate, and a displacement sensor driven by the first cylinder to move along the X direction and aligned with the B end of the lead screw.

5. The strut assembly length detection and oiling device as described in claim 4, characterized in that, The second end support block is provided with a second clearance notch to allow the lead screw B end to pass through; the movable end of the first cylinder is provided with a third support plate, the displacement sensor is mounted on the third support plate, the third support plate is also provided with an elastic guide sleeve adapted to the lead screw B end, and the sensing rod of the displacement sensor passes through the elastic guide sleeve.

6. The strut assembly length detection and oiling device as described in claim 1, characterized in that, The oiling module includes a third driving component, a second support plate that moves along the X direction driven by the third driving component, an oiling valve disposed on the second support plate, and a vision camera disposed on the second support plate.

7. The strut assembly length detection and oiling device as described in claim 1, characterized in that, It also includes a bellows compression module for a bellows on an axially compressed lead screw; the bellows compression module includes a second cylinder and a compression stop that is driven by the second cylinder to move in the X direction; the compression stop is provided with a third clearance notch to avoid the lead screw passing through; the compression stop is slidably mounted on a slide rail extending in the X direction by a slider.

8. The strut assembly length detection and oiling device as described in claim 7, characterized in that, It also includes an oil collection trough to catch oil droplets falling from the lead screw.

9. The strut assembly length detection and oiling device as described in claim 8, characterized in that, One end of the oil receiving groove is fixed to the extrusion block, and a support block is provided at the bottom of the other end of the oil receiving groove. Rollers are provided at the bottom of the support block. The oil receiving groove is raised by the extrusion block and the support block.

10. The strut assembly length detection and oiling device as described in claim 9, characterized in that, The second cylinder is located below the oil receiving groove.

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