Mechanical automatic balancing mechanism
By designing an automatic mechanical balancing mechanism, which utilizes the automatic adjustment of lifting cylinders and swing frames, the problem of time-consuming and labor-intensive traditional manual balancing is solved, achieving automatic balancing and efficient production, and is suitable for body-in-white adjustment lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-31
AI Technical Summary
In traditional body-in-white adjustment lines, the balance adjustment of semi-automatic fixtures relies on manual adjustment, which is time-consuming, labor-intensive, prone to errors, and has low work efficiency.
Design a mechanical automatic balancing mechanism, including a base, a longitudinal slide rail, a slider, a support frame, a lifting cylinder, a swing frame, and a floating mechanism. The mechanism achieves balance by automatically adjusting the lifting cylinder and the swing frame, and achieves automatic reset by cooperating with the floating mechanism and springs.
It achieves automatic balancing of semi-automatic fixtures, saving manual labor, improving work efficiency, reducing manufacturing costs, adapting to changes in external forces, and ensuring stable operation of workpieces.
Smart Images
Figure CN224065179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of body-in-white assembly, and in particular to a mechanical automatic balancing mechanism. Background Technology
[0002] In the body-in-white adjustment line, to avoid problems caused by human error, some lines use semi-automatic fixtures. When using semi-automatic fixtures, they need to be kept in a balanced state. Traditionally, operators would manually adjust the semi-automatic fixtures when they found them to be skewed, so as to restore them to a balanced state. However, this manual adjustment method is time-consuming and labor-intensive, which not only increases the workload but also has relatively low work efficiency. In addition, manual adjustment is also very prone to errors, which may cause the semi-automatic fixtures to fail to restore them to a balanced state.
[0003] Therefore, a method or apparatus is needed to solve the above problems. Summary of the Invention
[0004] The present invention addresses the aforementioned shortcomings of the existing technology by proposing a mechanism that is simple in structure, ingenious in design, and rational in layout, enabling semi-automatic devices to achieve automatic balancing.
[0005] The technical solution of this utility model is: a mechanical automatic balancing mechanism, including a base 1, characterized in that: a longitudinal slide rail 2 is provided on the base 1, a slider 3 is slidably connected on the longitudinal slide rail 2, a support frame 4 is fixedly connected to the slider 3, and the bottom end face of the support frame 4 is connected to the working end of a lifting cylinder 5.
[0006] A pivot support 6 is provided at the center of the support frame 4. The pivot support 6 rotatably supports the swing frame 8 via a pivot 7. A mounting platform 9 is provided on the top surface of the swing frame 8, and floating mechanisms are provided at both ends of the swing frame 8.
[0007] The floating mechanism includes a pair of guide bolts 10, the top ends of which are movably inserted into guide holes formed in the swing frame 8. An adjusting nut 11 is threaded onto the guide bolt 10, and a spring 12 is also sleeved on the outside of the guide bolt 10, the spring 12 being located between the adjusting nut 11 and the swing frame 8.
[0008] The floating mechanism also includes an adjustment block 13 located below the end of the swing frame 8. The adjustment block 13 is U-shaped, and a shim 14 is provided in its groove. A swing frame stop block 15 is provided on the bottom surface of the swing frame 8. The swing frame stop block 15 is located above the shim 14. At the same time, a pair of symmetrically distributed clamping bolts 16 are provided on the side wall of the adjustment block 13. The two clamping bolts 16 are respectively located on both sides of the swing frame stop block 15.
[0009] The base 1 has a lower stop block 17 at its top, and the support frame 4 has an upper stop block 18 that matches the lower stop block 17 on its bottom surface.
[0010] Compared with the prior art, this utility model has the following advantages:
[0011] This type of automatic mechanical balancing mechanism features a simple structure, ingenious design, and rational layout. Addressing the various problems inherent in traditional manual balancing, it employs a unique structure that allows for height adjustment via a lifting cylinder. Simultaneously, its swing frame can oscillate within a certain range around a pivot axis. During oscillation, floating mechanisms at both ends of the swing frame adapt, automatically returning the frame to a horizontal position after the external force is removed. It achieves automatic adaptation and reset adjustment without manual intervention, saving significant labor and adjustment time, thus improving work efficiency. Furthermore, its simple manufacturing process and low production cost make it highly advantageous and suitable for widespread application in this field, with a promising market prospect. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction one).
[0013] Figure 2 yes Figure 1 Enlarged view of part A in the image.
[0014] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction two). Detailed Implementation
[0015] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 As shown: A mechanical automatic balancing mechanism includes a base 1 as a foundation, on which a longitudinal slide rail 2 is provided, and a slider 3 is slidably connected to the longitudinal slide rail 2. A support frame 4 is fixedly connected to the slider 3, and the bottom end of the support frame 4 is connected to the working end of a lifting cylinder 5.
[0016] A pivot support 6 is provided at the center of the support frame 4. The pivot support 6 rotatably supports the swing frame 8 via a pivot 7. A mounting platform 9 is provided on the top surface of the swing frame 8, and floating mechanisms are provided at both ends of the swing frame 8.
[0017] The floating mechanism includes a pair of guide bolts 10, the top ends of which are movably inserted into guide holes formed in the swing frame 8. An adjusting nut 11 is threaded onto the guide bolt 10, and a spring 12 is also sleeved on the outside of the guide bolt 10, the spring 12 being located between the adjusting nut 11 and the swing frame 8.
[0018] The floating mechanism also includes an adjustment block 13 located below the end of the swing frame 8. The adjustment block 13 is U-shaped, and a shim 14 is provided in its groove. A swing frame stop block 15 is provided on the bottom surface of the swing frame 8. The swing frame stop block 15 is located above the shim 14. At the same time, a pair of symmetrically distributed clamping bolts 16 are provided on the side wall of the adjustment block 13. The two clamping bolts 16 are respectively located on both sides of the adjustment block 13.
[0019] The base 1 has a lower stop block 17 at its top, and the support frame 4 has an upper stop block 18 that matches the lower stop block 17 on its bottom surface.
[0020] The working process of the automatic mechanical balancing mechanism of this utility model embodiment is as follows: The tool end (such as the front cover hinge mounting device) is fixedly connected on the mounting platform 9. When the tool end is affected by lateral force or the load is eccentric, the mechanism can automatically perform adaptive swinging action to adapt to the force situation of the tool end, thereby achieving automatic balancing of the working state of the tool end and ensuring the stability of the workpiece.
[0021] When the force on one end of the swing frame 8 is greater than that on the other end, the swing frame 8 will swing in the direction of the greater force. During the swing, the top of the guide bolt 10 moves relative to the guide hole on the swing frame 8, while the spring 12 is compressed.
[0022] When the external force is removed, the swing frame 8 will return to the horizontal state under the action of spring 12, achieving automatic balance;
[0023] At the same time, when necessary, the control system can send a signal to the lifting cylinder 5 in this mechanism, and the lifting cylinder 5 drives the support frame 4 to move back and forth along the longitudinal slide rail 2, thereby changing the height of the swing frame 8.
[0024] When the swing frame stop block 15 contacts the shim 14, the swing frame 8 swings to its limit angle and can no longer swing. In actual work, the limit swing angle of the swing frame 8 can be adjusted by selecting shims 14 of different thicknesses.
[0025] When it is necessary to fix the swing frame 8, the clamping bolts 16 on both sides of the same swing frame stop block 15 can be rotated to fix the swing frame stop block 15.
Claims
1. A mechanical self-balancing mechanism comprising a base (1), characterized in that: The base (1) is provided with a longitudinal slide rail (2), the longitudinal slide rail (2) is slidably connected with a sliding block (3), the sliding block (3) is fixedly connected with a support frame (4), the bottom end surface of the support frame (4) is connected with the working end of a lifting cylinder (5), The center of the support frame (4) is provided with a rotating shaft support (6), the rotating shaft support (6) is rotatably supported with a swing frame (8) through a rotating shaft (7), the top end surface of the swing frame (8) is provided with a mounting platform (9), and the two ends of the swing frame (8) are respectively provided with floating mechanisms, The floating mechanism comprises a pair of guide bolts (10), the top end of the guide bolt (10) is movably inserted into a guide hole formed in the swing frame (8), an adjusting nut (11) is threadedly connected with the guide bolt (10), and a spring (12) is further sleeved with the guide bolt (10), and the spring (12) is located between the adjusting nut (11) and the swing frame (8), The floating mechanism further comprises an adjusting block (13) located below the end of the swing frame (8), the adjusting block (13) is concave, a gasket (14) is arranged in the recess, a swing frame stop block (15) is arranged on the bottom end surface of the swing frame (8), the swing frame stop block (15) is located above the gasket (14), and a pair of symmetrically distributed clamping bolts (16) are arranged on the side wall of the adjusting block (13), and the two clamping bolts (16) are located on the two sides of the swing frame stop block (15).
2. A mechanical self-balancing mechanism according to claim 1, characterized in that: The top end of the base (1) is provided with a lower stop block (17), and the bottom end surface of the support frame (4) is provided with an upper stop block (18) matched with the lower stop block (17).