Shafting self-adaptive shell entering mechanism
By designing an adaptive shaft insertion mechanism, the shaft and housing are precisely aligned and automatically inserted using an adaptive alignment mechanism and a servo electric cylinder. This solves the accuracy and efficiency problems existing in traditional assembly methods and achieves an efficient and stable assembly process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING AOSIDI AUTO PARTS CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional assembly methods for shaft parts and housings are difficult to meet the requirements of high precision and high efficiency. Manual operation cannot guarantee assembly accuracy, and simple mechanical auxiliary devices lack adaptive adjustment capabilities, resulting in long assembly cycles, low efficiency, and inability to achieve rapid automated assembly.
An adaptive shaft insertion mechanism was designed, including a conveyor track, a frame body, an adaptive alignment mechanism, and a drive mechanism. The mechanism utilizes springs and clamping blocks to achieve adaptive alignment between the shaft and the housing, combined with guide grooves and limit blocks to ensure correct posture, a servo electric cylinder to achieve precise insertion, and a motor to drive conveying and positioning.
It improves the accuracy and success rate of shaft and housing assembly, reduces manual intervention, realizes fast and efficient automated assembly, and ensures the consistency and stability of assembly quality.
Smart Images

Figure CN224254656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical assembly technology, specifically to a shaft system adaptive housing mechanism. Background Technology
[0002] In the field of mechanical manufacturing, the assembly of shaft parts and housings is a crucial step in the production process of many mechanical products. The quality of this assembly directly affects the performance, reliability, and service life of the mechanical products. For example, in complex mechanical systems such as automobile engines, reducers, and machine tool spindles, the precise assembly of shafts and housings plays a vital role in ensuring the smooth operation of equipment, reducing vibration and noise, and improving transmission efficiency.
[0003] However, traditional assembly methods have gradually revealed many drawbacks when facing the demand for high-precision assembly, making it difficult to meet the requirements of modern machinery manufacturing for efficient and high-precision assembly. Traditional manual assembly methods mainly rely on the experience and skills of operators. There are differences in the skill levels of different operators, and manual operation cannot guarantee that the force, angle, and position of each assembly are accurate. During the assembly process, due to the lack of precise positioning and guidance, shaft parts may not be able to accurately enter the designated position of the housing, resulting in uneven fit clearance, or even the shaft and housing jamming or the fit being too loose. Although simple mechanical auxiliary devices improve the efficiency of assembly to a certain extent, they often lack adaptive adjustment capabilities and cannot adjust in real time according to the actual size and shape deviation of the shaft and housing, which also makes it difficult to guarantee assembly accuracy. Manual assembly requires operators to spend a lot of time on alignment, adjustment, and fixing operations, especially when the assembly accuracy requirements are high. Operators need to try and adjust repeatedly, resulting in long assembly cycles and low production efficiency. Although simple mechanical auxiliary devices can reduce the labor intensity of operators, they still require multiple manual interventions and adjustments when facing complex assembly situations, and cannot achieve fast and efficient automated assembly.
[0004] To address this issue, we designed a shaft system adaptive housing mechanism. Utility Model Content
[0005] The purpose of this invention is to provide a shaft system adaptive housing mechanism to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a shaft system adaptive housing insertion mechanism, including a conveying track, a frame body connected to the outside of the conveying track, the frame body having multiple mounting surfaces and guide rails, an adaptive alignment mechanism in the middle of the frame body, the adaptive alignment mechanism including a fixed bracket, two springs mounted on one side of the fixed bracket, guide rods fixedly mounted at both ends of the fixed bracket, the springs being sleeved on the outer arc wall of the guide rods, a clamping block slidably connected to the guide rods being fixedly mounted at the other end of the springs, a housing being mounted on the side of the clamping block away from the springs, and a shaft being inserted into the end of the housing away from the clamping block.
[0007] Furthermore, the system includes a conveying track, to which a frame body is externally connected. The frame body has multiple mounting surfaces and guide rails. An adaptive alignment mechanism is provided in the middle of the frame body. The adaptive alignment mechanism includes a fixed bracket. Two springs are mounted on one side of the fixed bracket. Guide rods are fixedly mounted on both ends of the fixed bracket. The springs are sleeved on the outer arc walls of the guide rods. A clamping block that is slidably connected to the guide rod is fixedly mounted on the other end of the springs. A housing is mounted on the side of the clamping block away from the springs. A shaft is inserted into the end of the housing away from the clamping block.
[0008] Furthermore, a drive mechanism is provided below the main frame body. The drive mechanism includes a transmission chain and a motor located on the inner side wall of the main frame body. The motor is connected to the transmission chain for transmission.
[0009] Furthermore, a servo electric cylinder is installed on the top of the main frame body.
[0010] Furthermore, the surface of the conveying track is provided with guide grooves and positioning holes.
[0011] Furthermore, limit blocks are provided at both ends of the conveying track.
[0012] Furthermore, an elastic buffer pad is provided between the clamping block and the housing, and the elastic buffer pad is made of polyurethane material.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: through the adaptive alignment mechanism composed of a fixed bracket, spring, guide rod and clamping block, when the shaft is inserted into the housing, if there is a deviation between the shaft and the housing axis, the housing is subjected to lateral force, which will cause the clamping block to slide along the guide rod and compress the spring. The elastic deformation of the spring will cause the housing to automatically adjust its position within a certain range, thereby realizing the adaptive alignment between the shaft and the housing, ensuring that the shaft is smoothly inserted into the housing, and improving the accuracy and success rate of assembly.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the guide groove on the surface of the conveying track can guide the housing and shaft to move in a predetermined direction, ensuring that they maintain the correct posture during the conveying process; the positioning hole can accurately position the housing and shaft during the conveying process, ensuring that they are in the correct position when they arrive at the assembly area; the limiting blocks at both ends of the conveying track play a role in safety protection and positioning termination, preventing the housing and shaft from exceeding the track range during the conveying process, avoiding accidents such as collisions or falling; the polyurethane elastic buffer pad between the clamping block and the housing can reduce the clamping damage to the housing by the clamping block on the one hand, and absorb the vibration energy during the assembly process to a certain extent on the other hand, making the assembly process more stable. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;
[0016] Figure 2 This is a top view of the three-dimensional structure of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a three-dimensional structural diagram of the side of this utility model.
[0019] In the diagram: 1. Frame body; 2. Conveying track; 3. Guide groove; 4. Positioning hole; 5. Limiting block; 6. Drive mechanism; 7. Spring; 8. Guide rod; 9. Fixed bracket; 10. Clamping block; 11. Housing; 12. Shaft; 13. Servo electric cylinder; 14. Transmission chain; 15. Motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4This utility model provides a technical solution: a shaft system adaptive housing insertion mechanism, including a conveying track 2, a frame body 1 externally connected to the conveying track 2, the frame body 1 having multiple mounting surfaces and guide rails, an adaptive alignment mechanism in the middle of the frame body 1, the adaptive alignment mechanism including a fixed bracket 9, two springs 7 installed on one side of the fixed bracket 9, guide rods 8 fixedly installed at both ends of the fixed bracket 9, the springs 7 being sleeved on the outer arc wall of the guide rods 8, a clamping block 10 slidably connected to the guide rods 8 fixedly installed at the other end of the springs 7, a housing 11 installed on the side of the clamping block 10 away from the springs 7, and a shaft 12 inserted into the end of the housing 11 away from the clamping block 10.
[0022] In specific implementation, the frame body 1 serves as the supporting skeleton of the entire shaft system adaptive insertion mechanism. The conveying track 2 is responsible for conveying the housing 11 and shaft 12 to be assembled. The fixed bracket 9 is the basic component of the adaptive alignment mechanism. It is fixed on the frame body 1. Two springs 7 are installed on one side of the fixed bracket 9. The springs 7 are sleeved on the outer arc wall of the guide rod 8. The guide rod 8 plays a guiding role, so that the clamping block 10 can slide smoothly along the direction of the guide rod 8. The clamping block 10 is fixedly connected to the other end of the spring 7 and can slide with the guide rod 8. The clamping block 10 is used to clamp the housing 11. When the shaft 12 is about to be inserted into the housing 11, if there is a certain deviation between the axis of the shaft 12 and the axis of the housing 11, the housing 11 will be subjected to a lateral force during the insertion of the shaft 12. This lateral force will cause the clamping block 10 to slide along the guide rod 8 and compress the spring 7. The elastic deformation of the spring 7 allows the housing 11 to automatically adjust its position within a certain range, thereby achieving adaptive alignment between the shaft 12 and the housing 11, so that the shaft 12 can be smoothly inserted into the housing 11.
[0023] See Figure 1-4 A drive mechanism 6 is provided below the frame body 1. The drive mechanism 6 includes a transmission chain 14 and a motor 15 located on the inner side wall of the frame body 1. The motor 15 is connected to the transmission chain 14. A servo electric cylinder 13 is installed on the top of the frame body 1. A guide groove 3 and a positioning hole 4 are provided on the surface of the conveying track 2. Limiting blocks 5 are provided at both ends of the conveying track 2. An elastic buffer pad is provided between the clamping block 10 and the housing 11. The elastic buffer pad is made of polyurethane material.
[0024] In specific implementation, based on the above, the guide groove 3 on the surface of the conveying track 2 can guide the housing 11 and the shaft 12 to move along a predetermined direction, ensuring that they maintain the correct posture during the conveying process. The positioning hole 4 is used to accurately position the housing 11 and the shaft 12 during the conveying process, ensuring that they are in the correct position when they arrive at the assembly area. The limiting blocks 5 at both ends of the conveying track 2 play a role in safety protection and positioning termination, preventing the housing 11 and the shaft 12 from exceeding the track range during the conveying process, avoiding accidents such as collisions or falling. The polyurethane elastic buffer pad between the clamping block 10 and the housing 11 plays a role in... It plays a role in buffering and protection. On the one hand, it can reduce the clamping damage of the clamping block 10 to the housing 11. On the other hand, it can absorb the vibration energy during the assembly process to a certain extent, making the assembly process more stable. The drive mechanism 6 provides power for the operation of the entire mechanism. After the motor 15 starts, it transmits the power through the transmission chain 14. The transmission chain 14 runs on the inner side wall of the frame body 1, driving the housing 11 and shaft 12 on the conveying track 2 to move and accurately transport them to the assembly area. The speed and direction of the motor 15 can be precisely controlled according to the actual assembly requirements to ensure the accuracy of the conveying speed and direction.
[0025] The servo electric cylinder 13 at the top of the frame body 1 is the key actuator for inserting the shaft 12 into the housing 11. After the housing 11 and the shaft 12 are aligned under the action of the adaptive alignment mechanism, the servo electric cylinder 13 is activated, and its piston rod extends downward to precisely push the shaft 12 towards the housing 11, completing the assembly action of inserting the shaft 12 into the housing 11. The servo electric cylinder 13 has high-precision position control and speed control capabilities, and can accurately control the insertion depth and insertion speed of the shaft 12 according to the requirements of the assembly process, ensuring the consistency and stability of the assembly quality.
[0026] Working principle:
[0027] Step 1: The frame body 1 serves as the supporting skeleton for the entire self-adaptive housing mechanism. The conveyor track 2 is responsible for conveying the housing 11 and shaft 12 to be assembled. The surface of the conveyor track 2 has guide grooves 3, which can guide the housing 11 and shaft 12 to move in a predetermined direction, ensuring the correct posture during the conveying process. The positioning holes 4 are used to accurately position the housing 11 and shaft 12 during the conveying process, ensuring accurate positioning when they arrive at the assembly area. Limit blocks 5 are provided at both ends to provide safety protection and positioning termination, preventing them from exceeding the track range and avoiding accidents such as collisions or falls. The fixed bracket 9, as the basic component of the self-adaptive alignment mechanism, is fixed to the frame body 1. Two springs 7 are installed on one side of the fixed bracket 9 and sleeved on the outer arc wall of the guide rod 8. The guide rod 8 serves as a guide. The clamping block 10 can slide smoothly along the guide rod 8. The clamping block 10 is fixedly connected to the other end of the spring 7 and can slide with the guide rod 8. It is used to clamp the housing 11. When the shaft 12 is about to be inserted into the housing 11, if there is a deviation between the axis of the shaft 12 and the axis of the housing 11, the housing 11 will be subjected to a lateral force during the insertion of the shaft 12. This causes the clamping block 10 to slide along the guide rod 8 and compress the spring 7. The elastic deformation of the spring 7 causes the housing 11 to automatically adjust its position within a certain range, realizing the adaptive alignment of the shaft 12 and the housing 11, so that the shaft 12 can be smoothly inserted into the housing 11. A polyurethane elastic buffer pad is provided between the clamping block 10 and the housing 11, which can reduce the clamping damage of the clamping block 10 to the housing 11 and absorb the vibration energy during the assembly process, making the assembly more stable.
[0028] Step 2: The drive mechanism 6 provides power for the entire mechanism, including the transmission chain 14 located on the inner wall of the frame body 1 and the motor 15 connected to the transmission chain 14. After the motor 15 starts, it transmits power through the transmission chain 14, driving the housing 11 and shaft 12 on the conveying track 2 to move and accurately transport them to the assembly area. The speed and direction of the motor 15 can be precisely controlled according to the actual assembly requirements to ensure accurate conveying speed and direction. The servo electric cylinder 13 at the top of the frame body 1 is the key actuator for inserting the shaft 12 into the housing 11. After the housing 11 and shaft 12 are aligned under the action of the adaptive alignment mechanism, the servo electric cylinder 13 starts, and its piston rod extends downward to precisely push the shaft 12 towards the housing 11, completing the assembly action of inserting the shaft 12 into the housing 11. The servo electric cylinder 13 has high-precision position control and speed control capabilities, and can accurately control the insertion depth and speed of the shaft 12 according to the assembly process requirements to ensure the consistency and stability of the assembly quality.
Claims
1. A shaft-adaptive housing insertion mechanism, comprising a conveying track (2), characterized in that, The external connection of the conveying track (2) is a frame body (1). The frame body (1) is provided with multiple mounting surfaces and guide rails. An adaptive alignment mechanism is provided in the middle of the frame body (1). The adaptive alignment mechanism includes a fixed bracket (9). Two springs (7) are installed on one side of the fixed bracket (9). Guide rods (8) are fixedly installed at both ends of the fixed bracket (9). The springs (7) are sleeved on the outer arc wall of the guide rods (8). A clamping block (10) that is slidably connected to the guide rods (8) is fixedly installed at the other end of the springs (7). A housing (11) is installed on the side of the clamping block (10) away from the springs (7). A shaft (12) is inserted into the end of the housing (11) away from the clamping block (10).
2. The shaft system adaptive housing mechanism as described in claim 1, characterized in that: A drive mechanism (6) is provided below the frame body (1). The drive mechanism (6) includes a transmission chain (14) and a motor (15) located on the inner side wall of the frame body (1). The motor (15) is connected to the transmission chain (14) in a transmission connection.
3. The shaft system adaptive housing mechanism as described in claim 2, characterized in that: A servo electric cylinder (13) is installed on the top of the frame body (1).
4. The shaft system adaptive housing mechanism as described in claim 3, characterized in that: The surface of the conveying track (2) is provided with guide grooves (3) and positioning holes (4).
5. The shaft system adaptive housing mechanism as described in claim 4, characterized in that: Limiting blocks (5) are provided at both ends of the conveying track (2).
6. The shaft system adaptive housing mechanism as described in claim 5, characterized in that: An elastic buffer pad is provided between the clamping block (10) and the housing (11), and the elastic buffer pad is made of polyurethane material.